Cabinet type air conditioner indoor unit and control method

Abstract

The invention provides a cabinet type air conditioner indoor unit and a control method. An upper air opening and an upper air inlet are formed in the upper portion of a shell, and a lower air opening and a lower air inlet are formed in the lower portion of the shell; the air duct assembly is provided with an upper air duct, a power fan blade cavity and a lower air duct which are sequentially arranged. The upper air channel communicates with the upper air opening, the lower air channel communicates with the lower air opening, and the power fan blade cavity communicates with the shell cavity. The upper air duct is communicated with the power fan blade cavity, the lower air duct is communicated with the shell cavity, and an upper air outlet main flow path through which air enters from the lower air opening and is discharged from the upper air opening is formed in the cabinet type air conditioner indoor unit; the upper air duct is communicated with the shell cavity, the lower air duct is communicated with the power fan blade cavity, and a lower air outlet main flow path through which air enters from the upper air inlet and exits from the lower air outlet is formed in the cabinet type air conditioner indoor unit; the cabinet type air conditioner indoor unit is provided with an upper air outlet main flow path and a lower air outlet main flow path, wherein air is discharged from the upper air opening and the lower air opening at the same time through the upper air outlet main flow path and the lower air outlet main flow path.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing treatment, and particularly relates to a cabinet-type air conditioner indoor unit and a control method thereof. Background Art

[0002] In traditional cabinet-type air conditioner indoor units, the positions of the air supply outlet and the air return outlet are relatively unchanged; however, the indoor air temperature is stratified in the height direction, with hot air accumulating on the upper side of the room and cold air accumulating on the lower side, resulting in these cabinet-type air conditioners being unable to balance the cooling and heating requirements, uneven indoor air temperature distribution, and poor comfort. Taking the cabinet-type air conditioner indoor unit with upward air supply and downward air return as an example, the air supply outlet is on the upper side of the indoor unit housing. When cooling and supplying cold air, the cold air first quickly reaches above the human activity area and then naturally sinks, achieving rapid cooling and a small blowing feeling, balancing the temperature drop and comfort effect; at the same time, since the air return outlet is at the lower part of the indoor unit housing, the air return temperature is low, and the energy-saving effect is better; but when heating and supplying hot air, due to the principle of hot air rising, the hot air cannot come down in the upper part of the room, resulting in a phenomenon of hot at the top and cold at the bottom, and the air return temperature is low. More energy is required to reach the same air supply temperature, and the energy-saving effect is poor.

[0003] In view of the above problems, the prior art realizes reversible up-and-down air supply by arranging an axial flow fan or a mixed flow fan in the air duct. However, when using an axial flow fan, the manufacturing cost requirements for the motor are high, and the axial flow fan has problems such as short air supply distance and small air pressure; when using a mixed flow fan, the fan speed is high, the noise is large, and the efficiency is low. Summary of the Invention

[0004] In view of this, the present invention provides a cabinet-type air conditioner indoor unit and a control method thereof to solve the problems in the prior art, such as small air supply range, slow temperature change of indoor air, uneven distribution, and long time required for the room where the indoor unit is located to reach the set temperature, when realizing reversible up-and-down air supply by arranging an axial flow fan or a mixed flow fan in the air duct.

[0005] The present invention provides a cabinet-type air conditioner indoor unit, including a housing and an air duct assembly. The housing is formed with an upper air outlet and a lower air outlet; the air duct assembly is arranged inside the housing, and the air duct assembly is formed with an upper air duct communicating with the upper air outlet and a lower air duct communicating with the lower air outlet, and can realize air outlet from the upper air outlet and / or the lower air outlet.

[0006] Further optionally, the housing encloses a housing cavity, an upper air inlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing; the air duct assembly is arranged in the housing cavity and the air duct assembly further forms a power fan cavity, and the upper air duct, the power fan cavity and the lower air duct are arranged in sequence from top to bottom; the upper air duct communicates with the room through the upper air inlet, the lower air duct communicates with the room through the lower air outlet, and the power fan cavity communicates with the housing cavity through a fan cavity inlet; the upper air duct can be selectively communicated with the power fan cavity or the housing cavity; the lower air duct can be selectively communicated with the power fan cavity or the housing cavity;

[0007] When the upper air duct communicates with the power fan cavity and the lower air duct communicates with the housing cavity, the cabinet air conditioner indoor unit can form an upper air outlet main flow path with air inlet from the lower air outlet and air outlet from the upper air outlet;

[0008] When the upper air duct communicates with the housing cavity and the lower air duct communicates with the power fan cavity, the cabinet air conditioner indoor unit can form a lower air outlet main flow path with air inlet from the upper air outlet and air outlet from the lower air outlet.

[0009] Further optionally, an upper air intake is further formed in the upper part of the housing, the upper air inlet and the upper air intake are arranged opposite to each other front and back and the upper air intake can be selectively opened or closed; a lower air intake is further formed in the lower part of the housing, the lower air outlet and the lower air intake are arranged opposite to each other front and back and the lower air intake can be selectively opened or closed; the upper part of the housing cavity communicates with the room through the upper air intake, and the lower part of the housing cavity communicates with the room through the lower air intake;

[0010] When the upper air intake is closed and the lower air intake is opened, the cabinet air conditioner indoor unit can form a lower auxiliary air intake flow path with auxiliary air inlet from the lower air intake;

[0011] When the upper air intake is opened and the lower air intake is closed, the cabinet air conditioner indoor unit can form an upper auxiliary air intake flow path with auxiliary air inlet from the upper air intake;

[0012] When both the upper air intake and the lower air intake are opened, the cabinet air conditioner indoor unit can form an upper and lower simultaneous auxiliary air intake flow path with simultaneous auxiliary air inlet from the upper air intake and the lower air intake.

[0013] Further optionally, A1 ventilation openings and A2 ventilation openings are formed in the lower part of the upper air duct; a first upper air baffle structure is movably arranged between the A1 ventilation openings and the A2 ventilation openings. The first upper air baffle structure has a first working position and a second working position. When the first upper air baffle structure is in the first working position, the first upper air baffle structure opens the A1 ventilation openings and closes the A2 ventilation openings, so that the upper air duct communicates with the housing cavity and the upper air duct does not communicate with the power fan blade cavity; when the first upper air baffle structure is in the second working position, the first upper air baffle structure closes the A1 ventilation openings and opens the A2 ventilation openings, so that the upper air duct does not communicate with the housing cavity and the upper air duct communicates with the power fan blade cavity;

[0014] B1 ventilation openings and B2 ventilation openings are formed in the upper part of the lower air duct; a first lower air baffle structure is movably arranged between the B1 ventilation openings and the B2 ventilation openings. The first lower air baffle structure has a third working position and a fourth working position. When the first lower air baffle structure is in the third working position, the first lower air baffle structure opens the B1 ventilation openings and closes the B2 ventilation openings, so that the lower air duct communicates with the housing cavity and the lower air duct does not communicate with the power fan blade cavity; when the first lower air baffle structure is in the fourth working position, the first lower air baffle structure closes the B1 ventilation openings and opens the B2 ventilation openings, so that the lower air duct does not communicate with the housing cavity and the lower air duct communicates with the power fan blade cavity.

[0015] Further optionally, there are two power fan blade cavities, and the two power fan blade cavities include an upper fan blade cavity and a lower fan blade cavity arranged in sequence from top to bottom; an upper fan blade is rotatably arranged in the upper fan blade cavity, and the upper fan blade cavity is formed with an upper fan blade cavity inlet and an upper fan blade cavity outlet; the upper fan blade cavity inlet communicates the upper fan blade cavity with the housing cavity, and the upper fan blade cavity outlet communicates with the A2 ventilation openings;

[0016] A lower fan blade is rotatably arranged in the lower fan blade cavity, and the lower fan blade cavity is formed with a lower fan blade cavity inlet and a lower fan blade cavity outlet; the lower fan blade cavity inlet communicates the lower fan blade cavity with the housing cavity, and the lower fan blade cavity outlet communicates with the B2 ventilation openings;

[0017] When the first upper air baffle structure is in the second working position and the first lower air baffle structure is in the third working position, the upper fan blade rotates and the lower fan blade does not rotate, and indoor air can flow through the upper air outlet main flow path;

[0018] When the first upper air baffle structure is in the first working position and the first lower air baffle structure is in the fourth working position, the upper fan blade does not rotate and the lower fan blade rotates, and indoor air can flow through the lower air outlet main flow path.

[0019] Further optionally, there is one power wind blade cavity and the power wind blade cavity is the middle wind blade cavity; a middle wind blade is rotatably arranged in the middle wind blade cavity, and the middle wind blade cavity is formed with a middle wind blade cavity inlet, a middle wind blade cavity upper outlet and a middle wind blade cavity lower outlet; the middle wind blade cavity inlet communicates with the middle wind blade cavity and the housing cavity, the middle wind blade cavity upper outlet communicates with the A2 vent, and the middle wind blade cavity lower outlet communicates with the B2 vent;

[0020] When the first upper wind blocking structure is in the second working position and the first lower wind blocking structure is in the third working position, the middle wind blade rotates, and indoor air can flow through the upper air outlet main flow path;

[0021] When the first upper wind blocking structure is in the first working position and the first lower wind blocking structure is in the fourth working position, the middle wind blade rotates, and indoor air can flow through the lower air outlet main flow path.

[0022] Further optionally, a second upper wind blocking structure and a second lower wind blocking structure are also rotatably arranged in the middle wind blade cavity; the second upper wind blocking structure is close to the middle wind blade cavity upper outlet, and the second lower wind blocking structure is close to the middle wind blade cavity lower outlet; both the second upper wind blocking structure and the second lower wind blocking structure are adapted to the profile of the middle wind blade cavity;

[0023] When the first upper wind blocking structure is in the second working position and the first lower wind blocking structure is in the third working position, the second lower wind blocking structure and the first lower wind blocking structure cooperate to direct the air in the middle wind blade cavity to the upper air duct;

[0024] When the first upper wind blocking structure is in the first working position and the first lower wind blocking structure is in the fourth working position, the second upper wind blocking structure and the first upper wind blocking structure cooperate to direct the air in the middle wind blade cavity to the lower air duct.

[0025] Further optionally, there are two power wind blade cavities, and the two power wind blade cavities include an upper wind blade cavity and a lower wind blade cavity arranged in sequence from top to bottom; an upper wind blade is rotatably arranged in the upper wind blade cavity, and the upper wind blade cavity is formed with an upper wind blade cavity inlet, an upper wind blade cavity C1 outlet, an upper wind blade cavity C2 outlet and an upper wind blade cavity C3 outlet; the upper wind blade cavity inlet communicates with the upper wind blade cavity and the housing cavity, and the upper wind blade cavity C1 outlet communicates with the A2 vent;

[0026] A lower wind blade is rotatably arranged in the lower wind blade cavity, and the lower wind blade cavity is formed with a lower wind blade cavity inlet, a lower wind blade cavity D1 outlet, a lower wind blade cavity D2 outlet and a lower wind blade cavity D3 outlet; the lower wind blade cavity inlet communicates with the lower wind blade cavity and the housing cavity, and the lower wind blade cavity D1 outlet communicates with the B2 vent;

[0027] The air duct assembly further forms an upper auxiliary air duct, a middle auxiliary air duct, and a lower auxiliary air duct that are sequentially arranged from top to bottom; the upper auxiliary air duct communicates with the upper air outlet and the outlet of the upper wind blade cavity C2, the lower auxiliary air duct communicates with the lower air outlet and the outlet of the lower wind blade cavity D2, and the middle auxiliary air duct communicates with the outlet of the upper wind blade cavity C3 and the outlet of the lower wind blade cavity D3.

[0028] Further optionally, a third upper wind blocking structure is movably arranged at the outlet of the upper wind blade cavity C2, and the third upper wind blocking structure can open or close the outlet of the upper wind blade cavity C2; a third lower wind blocking structure is movably arranged at the outlet of the lower wind blade cavity D2, and the third lower wind blocking structure can open or close the outlet of the lower wind blade cavity D2;

[0029] When the third upper wind blocking structure opens the outlet of the upper wind blade cavity C2 and the third lower wind blocking structure closes the outlet of the lower wind blade cavity D2, the lower air duct, the lower wind blade cavity, the middle auxiliary air duct, the upper wind blade cavity, the upper air duct, and the upper auxiliary air duct are communicated and form the upper air outlet main flow path;

[0030] When the third upper wind blocking structure closes the outlet of the upper wind blade cavity C2 and the third lower wind blocking structure opens the outlet of the lower wind blade cavity D2, the upper air duct, the upper wind blade cavity, the middle auxiliary air duct, the lower wind blade cavity, the lower air duct, and the lower auxiliary air duct are communicated and form the lower air outlet main flow path;

[0031] When the third upper wind blocking structure closes the outlet of the upper wind blade cavity C2 and the third lower wind blocking structure closes the outlet of the lower wind blade cavity D2, the upper wind blade cavity and the upper air duct and the lower wind blade cavity and the lower air duct form the upper and lower simultaneous air outlet main flow path.

[0032] Further optionally, there are two power wind blade cavities, and the two power wind blade cavities include an upper wind blade cavity and a lower wind blade cavity that are sequentially arranged from top to bottom; an upper wind blade is rotatably arranged in the upper wind blade cavity, and the upper wind blade cavity is formed with an upper wind blade cavity inlet, an outlet of the upper wind blade cavity C1, and an outlet of the upper wind blade cavity C3; the upper wind blade cavity inlet communicates with the upper wind blade cavity and the housing cavity, the outlet of the upper wind blade cavity C1 communicates with the A2 ventilation opening, and a lower auxiliary air duct is formed between the outlet of the upper wind blade cavity C3 and the lower air outlet; a fourth upper wind blocking structure is movably arranged at the outlet of the upper wind blade cavity C3, and the fourth upper wind blocking structure can open or close the outlet of the upper wind blade cavity C3;

[0033] A lower wind blade is rotatably disposed within the lower wind blade cavity, and the lower wind blade cavity is formed with a lower wind blade cavity inlet, a lower wind blade cavity D1 outlet, and a lower wind blade cavity D3 outlet; the lower wind blade cavity inlet communicates with the lower wind blade cavity and the housing cavity, the lower wind blade cavity D1 outlet communicates with the B2 ventilation opening, and an upper secondary air duct is formed between the lower wind blade cavity D3 outlet and the upper air inlet; a fourth lower air blocking structure is movably disposed at the lower wind blade cavity D3 outlet, and the fourth lower air blocking structure can open or close the lower wind blade cavity D3 outlet.

[0034] Further optionally, when the first upper air blocking structure is in the second working position, the first lower air blocking structure is in the third working position, the upper wind blade cavity C3 outlet is closed, and the lower wind blade cavity D3 outlet is open, the lower air duct, the upper wind blade cavity, and the upper air duct are sequentially communicated to form the upper air outlet main flow path, and the lower air duct, the lower wind blade cavity, and the upper secondary air duct are sequentially communicated to form the upper air outlet secondary flow path;

[0035] When the first upper air blocking structure is in the first working position, the first lower air blocking structure is in the fourth working position, the upper wind blade cavity C3 outlet is open, and the lower wind blade cavity D3 outlet is closed, the upper air duct, the lower wind blade cavity, and the lower air duct are sequentially communicated to form the lower air outlet main flow path, and the upper air duct, the upper wind blade cavity, and the lower secondary air duct are sequentially communicated to form the lower air outlet secondary flow path.

[0036] Further optionally, the housing includes a housing left side wall, the air blade cavity inlet includes an air blade cavity left inlet, and the air blade cavity left inlet corresponds to the housing left side wall; the air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger includes a left heat exchanger, and the left heat exchanger is disposed between the housing left side wall and the air blade cavity left inlet; and / or,

[0037] The housing further includes a housing right side wall, the air blade cavity inlet includes an air blade cavity right inlet, and the air blade cavity right inlet corresponds to the housing right side wall; the air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger includes a right heat exchanger, and the right heat exchanger is disposed between the housing right side wall and the air blade cavity right inlet.

[0038] Further optionally, the left heat exchanger includes an E1 heat exchange section and an F1 heat exchange section; the E1 heat exchange section extends towards the upper air duct, and the F1 heat exchange section extends towards the lower air duct; the E1 heat exchange section is disposed above the F1 heat exchange section and satisfies: 90° ≤ ɑ ≤ 180°; and / or,

[0039] The right heat exchanger includes an E2 heat exchange section and an F2 heat exchange section; the E2 heat exchange section extends towards the upper air duct, and the F2 heat exchange section extends towards the lower air duct; the E2 heat exchange section is disposed above the F2 heat exchange section and satisfies: 90° ≤ β ≤ 180°;

[0040] Wherein, α is the angle between the heat exchange surface of the E1 heat exchange section and the heat exchange surface of the F1 heat exchange section, and β is the angle between the heat exchange surface of the E2 heat exchange section and the heat exchange surface of the F2 heat exchange section.

[0041] Further optionally, the housing encloses a housing cavity, an upper air inlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing; both the upper air inlet and the lower air outlet communicate with the interior of the room;

[0042] The air duct assembly is arranged in the housing cavity, and the air duct assembly further forms an upper air blade cavity and a lower air blade cavity; the upper air duct, the upper air blade cavity, the lower air blade cavity and the lower air duct are arranged in sequence from top to bottom; the upper air blade cavity includes an upper air blade cavity outlet and an upper air blade cavity inlet; the lower air blade cavity includes a lower air blade cavity inlet and a lower air blade cavity outlet; the upper air blade cavity inlet communicates the upper air blade cavity and the housing cavity, and the lower air blade cavity inlet communicates the lower air blade cavity and the housing cavity;

[0043] The upper air duct communicates the upper air inlet and the upper air blade cavity outlet, and an upper air return opening is formed in the side wall of the upper air duct; the upper air return opening communicates the upper air duct and the housing cavity, and two upper air blocking structures are movably arranged at the upper air return opening; when the two upper air blocking structures are in the first working position, the upper air return opening is in a closed state to connect the upper air duct and the upper air blade cavity outlet; when the two upper air blocking structures are in the second working position, the upper air return opening is in an open state to disconnect the upper air duct and the upper air blade cavity outlet, and an upper air guiding duct is formed between the two upper air blocking structures;

[0044] The lower air duct communicates the lower air outlet and the lower air blade cavity outlet, and a lower air return opening is formed in the side wall of the lower air duct; the lower air return opening communicates the lower air duct and the housing cavity, and two lower air blocking structures are movably arranged at the lower air return opening, and the two lower air blocking structures have a third working position and a fourth working position. When the two lower air blocking structures are in the third working position, the lower air return opening is in a closed state to connect the lower air duct and the lower air blade cavity outlet; when the two lower air blocking structures are in the fourth working position, the lower air return opening is in an open state to disconnect the lower air duct and the lower air blade cavity outlet, and a lower air guiding duct is formed between the two lower air blocking structures.

[0045] Further optionally, the cabinet-type air conditioner indoor unit is provided with a lower air inlet and upper air outlet mode and an upper air inlet and lower air outlet mode;

[0046] When the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode, the two upper air baffle structures are in the first working position and the two lower air baffle structures are in the fourth working position; indoor air can enter the lower air duct through the lower air inlet, enter the housing cavity through the lower air return opening and the lower air guiding duct, then flow through the upper air blade cavity and the upper air duct in sequence, and be discharged through the upper air outlet.

[0047] When the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode, the two upper air baffle structures are in the second working position and the two lower air baffle structures are in the third working position; indoor air can enter the upper air duct through the upper air outlet, enter the housing cavity through the upper air return opening and the upper air guiding duct, then flow through the lower air blade cavity and the lower air duct in sequence, and be discharged through the lower air outlet.

[0048] Further optionally, the two upper air baffle structures include a first upper air baffle structure and a second upper air baffle structure. The first upper air baffle structure is movably arranged on the upper edge of the upper air return opening, and the second upper air baffle structure is movably arranged on the lower edge of the upper air return opening.

[0049] When the two upper air baffle structures are in the first working position, the plate surfaces of the first upper air baffle structure and the second upper air baffle structure are both abutted against the side wall of the upper air duct and close the upper air return opening, so that the upper air duct is communicated with the outlet of the upper air blade cavity.

[0050] When the two upper air baffle structures are in the second working position, the lower end of the first upper air baffle structure and the upper end of the second upper air baffle structure are both far away from the side wall of the upper air duct and open the upper air return opening. The second upper air baffle structure disconnects the upper air duct from the outlet of the upper air blade cavity. An upper air guiding duct is formed between the first upper air baffle structure and the second upper air baffle structure for guiding the air in the upper air duct to the housing cavity.

[0051] Further optionally, the housing further includes a housing rear side wall oppositely arranged to the front side wall of the housing; the upper air duct includes an upper main air duct and an upper auxiliary air duct. The upper auxiliary air duct is arranged on the top of the upper main air duct and communicates the upper main air duct with the upper air outlet; the side wall of the upper main air duct includes an upper main air duct rear side wall and an upper main air duct front side wall which are oppositely arranged; the upper main air duct rear side wall is formed with an upper air return opening, and the upper main air duct rear side wall corresponds to the housing rear side wall; the first upper air baffle structure is rotatably arranged on the outer wall surface of the upper main air duct rear side wall, and the second upper air baffle structure is rotatably arranged on the inner wall surface of the upper main air duct rear side wall.

[0052] When the two upper air baffle structures are in the first working position, the plate surfaces of the first upper air baffle structure and the second upper air baffle structure are both abutted against the upper main air duct rear side wall.

[0053] When the two upper windshields are in the second working position, the lower end of the first upper windshield abuts against the rear side wall of the housing, and the upper end of the second upper windshield abuts against the front side wall of the upper main air duct.

[0054] Further optionally, the two lower windshields include a first lower windshield and a second lower windshield. The first lower windshield is movably arranged at the lower edge of the lower air return opening, and the second lower windshield is movably arranged at the upper edge of the lower air return opening;

[0055] When the two lower windshields are in the third working position, the plate surfaces of the first lower windshield and the second lower windshield are both abutted against the side wall of the lower air duct and close the lower air return opening, so that the lower air duct is communicated with the outlet of the lower air blade cavity;

[0056] When the two lower windshields are in the fourth working position, the upper end of the first lower windshield and the lower end of the second lower windshield are both far away from the side wall of the lower air duct, and the lower air return opening is opened. The second lower windshield disconnects the lower air duct from the outlet of the lower air blade cavity; A lower air guide duct is formed between the first lower windshield and the second lower windshield for guiding the air in the lower air duct to the housing cavity.

[0057] Further optionally, the lower air duct includes a lower main air duct and a lower auxiliary air duct. The lower auxiliary air duct is arranged at the bottom of the lower main air duct and communicates the lower main air duct and the lower air outlet; The side wall of the lower main air duct includes a lower main air duct rear side wall and a lower main air duct front side wall which are oppositely arranged; A lower air return opening is formed in the lower main air duct rear side wall, and the lower main air duct rear side wall corresponds to the rear side wall of the housing; The first lower windshield is rotatably arranged on the outer wall surface of the lower main air duct rear side wall, and the second lower windshield is rotatably arranged on the inner wall surface of the lower main air duct rear side wall;

[0058] When the two lower windshields are in the third working position, the plate surfaces of the first lower windshield and the second lower windshield are both abutted against the lower main air duct rear side wall;

[0059] When the two lower windshields are in the fourth working position, the upper end of the first lower windshield abuts against the rear side wall of the housing, and the lower end of the second lower windshield abuts against the lower main air duct front side wall.

[0060] Further optionally, the air duct assembly includes a volute and a volute cover. The volute and the volute cover are cooperatively connected to form the upper main air duct, the upper air blade cavity, the lower air blade cavity and the lower main air duct;

[0061] The air duct assembly further includes an upper ventilation housing and a lower ventilation housing, both of which are disposed in the housing cavity; the upper ventilation housing is disposed at the top of the upper main air duct and forms an upper sub-air duct, and the lower ventilation housing is disposed at the bottom of the lower main air duct and forms a lower sub-air duct.

[0062] Further optionally, the housing includes a left side wall of the housing; the inlet of the upper blower cavity includes a left inlet of the upper blower cavity, and the left inlet of the upper blower cavity is disposed close to the left side wall of the housing; the inlet of the lower blower cavity includes a left inlet of the lower blower cavity, and the left inlet of the lower blower cavity is disposed close to the left side wall of the housing; the cabinet-type indoor air conditioner further includes an indoor heat exchanger, and the indoor heat exchanger includes a left heat exchanger disposed in the housing cavity, and the left heat exchanger is disposed close to the left inlet of the upper blower cavity and the left inlet of the lower blower cavity; and / or,

[0063] The housing includes a right side wall of the housing; the inlet of the upper blower cavity includes a right inlet of the upper blower cavity, and the right inlet of the upper blower cavity is disposed close to the right side wall of the housing; the inlet of the lower blower cavity includes a right inlet of the lower blower cavity, and the right inlet of the lower blower cavity is disposed close to the right side wall of the housing; the cabinet-type indoor air conditioner further includes an indoor heat exchanger, and the indoor heat exchanger includes a right heat exchanger disposed in the housing cavity, and the right heat exchanger is disposed close to the right inlet of the upper blower cavity and the right inlet of the lower blower cavity.

[0064] Further optionally, the left heat exchanger includes an A1 heat exchange section and a B1 heat exchange section which are disposed opposite to each other up and down; the A1 heat exchange section is disposed close to the left inlet of the upper blower cavity, and the B1 heat exchange section is disposed close to the left inlet of the lower blower cavity; and / or, the right heat exchanger includes an A2 heat exchange section and a B2 heat exchange section which are disposed opposite to each other up and down; the A2 heat exchange section is disposed close to the right inlet of the upper blower cavity, and the B2 heat exchange section is disposed close to the right inlet of the lower blower cavity;

[0065] When the cabinet-type indoor air conditioner is in the lower air inlet and upper air outlet mode, indoor air can enter the lower air duct through the lower air inlet, enter the housing cavity through the lower air return opening and the lower air guide duct, a part of the air enters the upper blower cavity through the B1 heat exchange section, the A1 heat exchange section and the left inlet of the upper blower cavity; another part of the air enters the upper blower cavity through the B2 heat exchange section, the A2 heat exchange section and the right inlet of the upper blower cavity; the air in the upper blower cavity is discharged through the upper air duct and the upper air outlet;

[0066] When the cabinet-type air conditioner indoor unit is in the upper-air inlet and lower-air outlet mode, indoor air can enter the upper air duct through the upper air inlet, enter the housing cavity through the upper air return inlet and the upper air guide duct, and a part of the air enters the lower air blade cavity through the A1 heat exchange section, the B1 heat exchange section and the left inlet of the lower air blade cavity; another part of the air enters the lower air blade cavity through the A2 heat exchange section, the B2 heat exchange section and the right inlet of the lower air blade cavity; the air in the lower air blade cavity is discharged through the lower air duct and the lower air outlet.

[0067] Further optionally, an upper air deflector is rotatably provided at the upper air inlet, and the upper air deflector can open or close the upper inlet or adjust the air outlet direction of the upper air inlet; and / or,

[0068] A lower air deflector is rotatably provided at the lower air outlet, and the lower air deflector can open or close the lower air outlet or adjust the air outlet direction of the lower air outlet.

[0069] Further optionally, a first ventilation opening and a second ventilation opening are provided in the upper air duct and / or the lower air duct, and the first ventilation opening and the second ventilation opening are oppositely arranged along the extending direction of the upper air duct or the lower air duct; a third ventilation opening is formed on the side wall of the air duct between the first ventilation opening and the second ventilation opening; the air duct assembly includes an air duct control component, and the air duct control component is arranged in the upper air duct and / or the lower air duct and controls the first ventilation opening and the second ventilation opening and the first ventilation opening and the third ventilation opening to be selectively communicated or disconnected; the air duct control component includes a baffle assembly and a driving assembly;

[0070] The baffle assembly includes a first baffle and a second baffle, and the first baffle and the second baffle are arranged together in a foldable and extendable manner; wherein:

[0071] The first baffle has an A1 end and a B1 end which are oppositely arranged, and the second baffle has an A2 end and a B2 end which are oppositely arranged; the A1 end, the B1 end and the A2 end are all hinged ends, the A1 end is hinged on the side wall of the upper air duct and / or the lower air duct, the B1 end and the A2 end are hinged together; the B2 end is a free end;

[0072] The driving assembly includes a first driving assembly and a second driving assembly; wherein:

[0073] The first driving assembly is drivingly connected to the first baffle and is used for driving the baffle assembly to rotate integrally around the hinge axis of the A1 end;

[0074] The second driving assembly is drivingly connected to the second baffle and is used for driving the second baffle to rotate around the hinge axis of the B1 end and the A2 end;

[0075] When the first baffle and the second baffle are in a folded state, the third vent can be blocked, so that the first vent and the second vent are connected;

[0076] When the first baffle and the second baffle are in the extended state, the first vent and the second vent can be disconnected, so that the first vent is connected to the third vent.

[0077] Further optionally, the B1 end is formed with an axial hole, the A2 end is formed with a rotating shaft, and the rotating shaft is rotatably disposed in the axial hole;

[0078] The second driving assembly includes a driving gear and a driven gear, the driving gear is used to be arranged in the air duct, and the driven gear is connected to the rotating shaft in a transmission manner; when the baffle assembly rotates as a whole and the driven gear and the driving gear are meshed, the driving gear drives the driven gear to rotate, so that the first baffle and the second baffle can be in a folded state or an extended state.

[0079] Further optionally, the air duct assembly is further formed with a blade cavity; the upper air duct and / or the lower air duct is connected with the blade cavity through the second vent;

[0080] A shell air duct is formed between the air duct assembly and the shell; the upper air duct and / or the lower air duct is connected to the shell air duct through the third vent;

[0081] When the first baffle and the second baffle are in a folded state and block the third vent, the upper air duct and / or the lower air duct are not connected to the shell air duct and the upper air duct and / or the lower air duct are connected to the fan blade cavity;

[0082] When the first baffle and the second baffle are in an extended state and block the first vent and the second vent, the upper air duct and / or the lower air duct are connected to the shell air duct and the upper air duct and / or the lower air duct are not connected to the fan blade cavity.

[0083] Further optionally, the upper portion of the shell is formed with the upper air outlet, the lower portion of the shell is formed with the lower air outlet, the upper air outlet and the lower air outlet are both connected to the room; the upper air duct includes an upper main air duct, the lower air duct includes a lower main air duct, and the air blade cavity includes an upper air blade cavity and a lower air blade cavity; the upper main air duct, the upper air blade cavity, the lower air blade cavity and the lower main air duct are arranged in sequence from top to bottom; the first ventilation port of the upper main air duct is connected to the upper air outlet, and the second ventilation port of the upper main air duct is connected to the upper air blade cavity; the third ventilation port of the upper main air duct is an upper return air outlet, and the upper return air outlet is connected to the upper main air duct and the shell air duct; an air duct control component is arranged in the upper main air duct, and the air duct control component includes a first upper baffle and a second upper baffle;

[0084] The first ventilation opening of the lower main air duct is communicated with the lower air outlet, and the second ventilation opening of the lower main air duct is communicated with the lower air blade cavity; the third ventilation opening of the lower main air duct is a lower return air opening, and the lower return air opening is communicated with the lower main air duct and the housing air duct; another air duct control component is arranged in the lower main air duct, and the air duct control component includes a first lower baffle and a second lower baffle;

[0085] The upper air blade cavity and the housing air duct are communicated through the upper air blade cavity inlet, and the lower air blade cavity and the housing air duct are communicated through the lower air blade cavity inlet;

[0086] When the first upper baffle and the second upper baffle are in a folded or extended state, and the first lower baffle and the second lower baffle are in a folded or extended state, the air duct assembly forms an upper air outlet main flow path with air entering from the lower air outlet and exiting from the upper air outlet, or a lower air outlet main flow path with air entering from the upper air outlet and exiting from the lower air outlet.

[0087] Further optionally, when the first upper baffle and the second upper baffle are in a folded state, and the first lower baffle and the second lower baffle are in an extended state, the upper return air opening is in a closed state while the upper main air duct is communicated with the upper air blade cavity, the lower return air opening is in an open state while the lower main air duct is not communicated with the lower air blade cavity, the first lower baffle and the second lower baffle form a lower guiding surface, and the air duct assembly forms the upper air outlet main flow path;

[0088] When the first upper baffle and the second upper baffle are in an extended state, and the first lower baffle and the second lower baffle are in a folded state, the upper return air opening is in an open state while the upper main air duct is not communicated with the upper air blade cavity, the lower return air opening is in a closed state while the lower main air duct is communicated with the lower air blade cavity, the first upper baffle and the second upper baffle form an upper guiding surface, and the air duct assembly forms the lower air outlet main flow path.

[0089] Further optionally, the side wall of the upper main air duct includes an upper main air duct front side wall and an upper main air duct rear side wall, the upper main air duct rear side wall forms the upper return air opening, and the A1 end of the first upper baffle is hinged on the upper main air duct rear side wall; when the first upper baffle and the second upper baffle are in a folded state, the first upper baffle and the second upper baffle are abutted against the upper main air duct rear side wall; when the first upper baffle and the second upper baffle are in an extended state, the B2 end of the second upper baffle abuts against the upper main air duct front side wall;

[0090] The side wall of the lower main air duct includes a front side wall of the lower main air duct and a rear side wall of the lower main air duct. The rear side wall of the lower main air duct forms the lower air return opening. The A1 connection end of the first lower baffle is hinged on the rear side wall of the lower main air duct. When the first lower baffle and the second lower baffle are in the folded state, the first lower baffle and the second lower baffle are abutted against the rear side wall of the lower main air duct. When the first lower baffle and the second lower baffle are in the extended state, the B2 end of the second lower baffle abuts against the front side wall of the lower main air duct.

[0091] Further optionally, an upper air inlet is further formed in the upper part of the housing, and a lower air inlet is further formed in the lower part of the housing. Both the upper air inlet and the lower air inlet communicate with the room. The upper air inlet communicates with the housing air duct and forms an upper auxiliary flow path, and the lower air inlet communicates with the housing air duct and forms a lower auxiliary flow path.

[0092] Further optionally, the housing includes a left side wall of the housing and a right side wall of the housing. The upper airfoil chamber inlet includes a left upper airfoil chamber inlet and a right upper airfoil chamber inlet. The lower airfoil chamber inlet includes a left lower airfoil chamber inlet and a right lower airfoil chamber inlet. The left upper airfoil chamber inlet and the left lower airfoil chamber inlet are both arranged close to the left side wall of the housing, and the right upper airfoil chamber inlet and the right lower airfoil chamber inlet are both arranged close to the right side wall of the housing.

[0093] The cabinet-type air conditioner indoor unit further includes an indoor heat exchanger. The indoor heat exchanger includes a left heat exchanger and a right heat exchanger. The left heat exchanger includes an upper left heat exchange section and a lower left heat exchange section. The upper left heat exchange section is arranged between the left side wall of the housing and the left upper airfoil chamber inlet, and the lower left heat exchange section is arranged between the left side wall of the housing and the left lower airfoil chamber inlet. The right heat exchanger includes an upper right heat exchange section and a lower right heat exchange section. The upper right heat exchange section is arranged between the right side wall of the housing and the right upper airfoil chamber inlet, and the lower right heat exchange section is arranged between the right side wall of the housing and the right lower airfoil chamber inlet.

[0094] Further optionally, an upper left heat exchange area is formed between the upper left heat exchange section and the left side wall of the housing, and a lower left heat exchange area is formed between the lower left heat exchange section and the left side wall of the housing. An upper right heat exchange area is formed between the upper right heat exchange section and the right side wall of the housing, and a lower right heat exchange area is formed between the lower right heat exchange section and the right side wall of the housing.

[0095] From top to bottom, both the upper left heat exchange area and the upper right heat exchange area are in a tapered form. From bottom to top, both the lower left heat exchange area and the lower right heat exchange area are in a tapered form.

[0096] Further optionally, the housing encloses a housing cavity, and the upper part of the housing forms the upper air outlet, and the lower part of the housing forms the lower air outlet.

[0097] The air duct assembly is disposed within the housing cavity, and the air duct assembly further forms an upper impeller cavity and a lower impeller cavity. The upper air duct, the upper impeller cavity, the lower impeller cavity, and the lower air duct are arranged in sequence from top to bottom. An upper impeller is rotatably disposed within the upper impeller cavity, and the upper impeller cavity forms an A1 air outlet and a B1 air outlet. A lower impeller is rotatably disposed within the lower impeller cavity, and the lower impeller cavity forms an A2 air outlet and a B2 air outlet. The upper air duct communicates with the upper air inlet and the A1 air outlet. The lower air duct communicates with the lower air inlet and the A2 air outlet.

[0098] A transition cavity is formed between the housing and the air duct assembly. The B1 air outlet communicates the upper impeller cavity with the transition cavity, and the B2 air outlet communicates the lower impeller cavity with the transition cavity.

[0099] The cabinet-type air conditioner indoor unit is provided with an upper air outlet mode and a lower air outlet mode. When the cabinet-type air conditioner indoor unit is in the upper air outlet mode, the upper impeller rotates, enabling indoor air to enter the lower air duct through the lower air inlet and then be discharged through the upper air outlet. When the cabinet-type air conditioner indoor unit is in the lower air outlet mode, the lower impeller rotates, enabling indoor air to enter the upper air duct through the upper air inlet and then be discharged through the lower air outlet.

[0100] Further optionally, the air duct assembly further includes a transition air housing, which surrounds the B1 air outlet and the B2 air outlet and forms the transition cavity. The transition cavity communicates the B1 air outlet with the B2 air outlet.

[0101] When the upper impeller rotates, the air within the lower impeller cavity can enter the transition cavity through the B2 air outlet and then enter the upper impeller cavity through the B1 air outlet. When the lower impeller rotates, the air within the upper impeller cavity enters the transition cavity through the B1 air outlet and then enters the lower impeller cavity through the B2 air outlet.

[0102] Further optionally, a C1 flow guide ring is formed at the B1 air outlet, and the C1 flow guide ring can enable the air in the upper impeller cavity to smoothly enter the transition cavity, or enable the air in the transition cavity to smoothly enter the upper impeller cavity.

[0103] A C2 flow guide ring is formed at the B2 air outlet, and the C2 flow guide ring can enable the air in the lower impeller cavity to smoothly enter the transition cavity, or enable the air in the transition cavity to smoothly enter the lower impeller cavity.

[0104] Further optionally, the housing includes a left housing wall and a right housing wall, and the left housing wall and the right housing wall are disposed opposite to each other and are both connected to the front housing wall and the top housing wall.

[0105] The B1 air outlet includes a B11 air outlet and a B12 air outlet which are arranged opposite to each other left and right. The B11 air outlet and the B12 air outlet are respectively arranged close to the left side wall and the right side wall of the housing. The B2 air outlet includes a B21 air outlet and a B22 air outlet which are arranged opposite to each other left and right. The B21 air outlet and the B22 air outlet are respectively arranged close to the left side wall and the right side wall of the housing.

[0106] The transition air housing includes a left transition air housing and a right transition air housing. The left transition air housing forms a left transition cavity, and the left transition cavity communicates with the B11 air outlet and the B21 air outlet. The right transition air housing forms a right transition cavity, and the right transition cavity communicates with the B12 air outlet and the B22 air outlet.

[0107] Further optionally, the indoor heat exchanger includes a left heat exchanger and a right heat exchanger. The left heat exchanger is arranged in the left transition cavity, and the left heat exchanger includes a first left heat exchanger and a second left heat exchanger which are arranged opposite to each other up and down. The first left heat exchanger is arranged close to the B11 air outlet, and the second left heat exchanger is arranged close to the B21 air outlet.

[0108] The right heat exchanger is arranged in the right transition cavity, and the right heat exchanger includes a first right heat exchanger and a second right heat exchanger which are arranged opposite to each other up and down. The first right heat exchanger is arranged close to the B12 air outlet, and the second right heat exchanger is arranged close to the B22 air outlet.

[0109] Further optionally, when the upper air blade rotates, a part of the air in the lower air blade cavity can flow through the B21 air outlet, the second left heat exchanger, the first left heat exchanger in sequence, and then enter the upper air blade cavity through the B11 air outlet. Another part of the air in the lower air blade cavity flows through the B22 air outlet, the second right heat exchanger, the first right heat exchanger in sequence, and then enters the upper air blade cavity through the B21 air outlet.

[0110] When the lower air blade rotates, a part of the air in the upper air blade cavity can flow through the B11 air outlet, the first left heat exchanger, the second left heat exchanger in sequence, and then enter the lower air blade cavity through the B12 air outlet. Another part of the air in the upper air blade cavity flows through the B21 air outlet, the first right heat exchanger, the second right heat exchanger in sequence, and then enters the lower air blade cavity through the B22 air outlet.

[0111] Further optionally, both the first left heat exchanger and the second left heat exchanger are plate heat exchangers. The heat exchange surfaces of the first left heat exchanger and the second left heat exchanger intersect and protrude towards the space between the B11 air outlet and the B21 air outlet.

[0112] Both the first right heat exchanger and the second right heat exchanger are plate heat exchangers. The heat exchange surfaces of the first right heat exchanger and the second right heat exchanger intersect and protrude towards the B12 air outlet and the B22 air outlet.

[0113] Further optionally, it satisfies: 90°≤ɑ≤180°, 90°≤β≤180°;

[0114] Wherein, ɑ is the included angle between the heat exchange surfaces of the first left heat exchanger and the second left heat exchanger, and β is the included angle between the heat exchange surfaces of the first right heat exchanger and the second right heat exchanger.

[0115] Further optionally, the air duct assembly includes a volute, a volute cover, an upper air duct shell and a lower air duct shell. The volute and the volute cover are cooperatively connected to form an upper impeller cavity and a lower impeller cavity; the upper air duct shell is disposed at the top of the upper impeller cavity and the upper air duct shell forms the upper air duct; the lower air duct shell is disposed at the bottom of the lower impeller cavity and the lower air duct shell forms the lower air duct.

[0116] Further optionally, a wind guiding assembly is disposed at the upper air outlet. The wind guiding assembly includes a wind guiding plate and a connecting rod; a plurality of the wind guiding plates are provided, and the plurality of wind guiding plates are rotatably disposed at the upper air outlet, and the plurality of wind guiding plates are sequentially spaced along the length direction of the upper air outlet; each wind guiding plate forms a connecting portion at one end away from its own rotating shaft, and the plurality of connecting portions are connected by a connecting rod;

[0117] When one of the plurality of wind guiding plates is controlled to rotate, the plurality of wind guiding plates can rotate synchronously, and thus the upper air outlet can be opened or closed.

[0118] The air duct assembly in Embodiment 11 of the cabinet-type air conditioner indoor unit of the present invention includes an air duct housing, and the air duct housing includes an upper air duct housing and a lower air duct housing;

[0119] The top of the upper air duct housing has a first upper air duct communication port communicating with the upper air outlet, and the bottom side has a second upper air duct communication port. The bottom of the lower air duct housing has a first lower air duct communication port communicating with the lower air outlet, and the top side has a second lower air duct communication port

[0120] The indoor unit further includes a fan assembly, and the fan assembly includes an upper fan assembly and a lower fan assembly that work independently. The air supply directions of the upper fan assembly and the lower fan assembly are opposite. The upper fan assembly is disposed inside the upper air duct housing and is located at the position of the second upper air duct communication port, and the lower fan assembly is disposed inside the lower air duct housing and is located at the position of the second lower air duct communication port;

[0121] A heat exchanger assembly, the heat exchanger assembly includes a heat exchanger housing and a heat exchanger disposed inside the heat exchanger housing;

[0122] Wherein, the heat exchange housing is sleeved on the side of the air duct housing, and a ventilation channel is defined between the heat exchange housing and the side of the air duct housing. The ventilation channel includes an upper ventilation channel and a lower ventilation channel separated by a heat exchanger. The upper ventilation channel communicates with the second upper air duct communication port, and the lower ventilation channel communicates with the second lower air duct communication port.

[0123] Further optionally, two second upper air duct communication ports are provided, and the two second upper air duct communication ports are symmetrically arranged on the opposite two side edges of the bottom of the upper air duct housing;

[0124] Two second lower air duct communication ports are provided, and the two second lower air duct communication ports are symmetrically arranged on the opposite two side edges of the top of the lower air duct housing;

[0125] Two groups of heat exchanger assemblies are provided, and the two groups of heat exchanger assemblies are symmetrically arranged on the opposite two side edges of the air duct housing. Each group of heat exchanger assemblies is used to conduct the upper air duct communication port and the second lower air duct communication port on the same side.

[0126] Further optionally, the heat exchanger has a first connection end and a second connection end arranged oppositely. The first connection end is connected to the inner wall of the heat exchanger housing, and the second connection end abuts against the side edge of the air duct housing;

[0127] Wherein, the heat exchanger extends obliquely from the first connection end to the second connection end.

[0128] Further optionally, the heat exchanger extends obliquely downward from the first connection end to the second connection end.

[0129] Further optionally, the upper fan assembly includes an upper fan and upper fan blades. The upper fan can drive the upper fan blades to rotate to suck air flow from the lower air inlet and discharge it from the upper air outlet;

[0130] The lower fan assembly includes a lower fan and lower fan blades. The lower fan can drive the lower fan blades to rotate to suck air flow from the upper air inlet and discharge it from the lower air outlet.

[0131] Further optionally, both the upper fan blades and the lower fan blades are centrifugal fan blades.

[0132] Further optionally, an upper air outlet movement mechanism is provided at the upper air outlet for opening and closing the upper air outlet;

[0133] The upper air outlet movement mechanism includes a wind guide plate, a motor and a connecting rod arranged at the upper air outlet;

[0134] A plurality of wind guide plates are provided. The motor is connected to the shaft hole on one of the plurality of wind guide plates, and the plurality of wind guide plates are connected by a connecting rod.

[0135] Further optionally, the upper air duct housing includes a first upper air duct section and a second upper air duct section extending from bottom to top. The cross-sectional area of the first upper air duct section is smaller than that of the second upper air duct section, and the upper fan assembly is arranged in the first upper air duct section;

[0136] The lower air duct housing includes a first lower air duct section and a second lower air duct section extending from top to bottom. The cross-sectional area of the first lower air duct section is smaller than that of the second lower air duct section, and the lower fan assembly is arranged in the first lower air duct section.

[0137] Further optionally, the indoor unit further includes:

[0138] At least one auxiliary fan assembly, which is adjacent to the upper fan assembly and / or the lower fan assembly in the height direction of the body. The auxiliary fan assembly is used to increase the air volume at the upper air outlet when the upper air outlet blows air or increase the air volume at the lower air outlet when the lower air outlet blows air.

[0139] In the above technical solution, the body includes:

[0140] An air inlet component, the front and top of which are open, and an accommodation space is formed inside;

[0141] A panel component, which is installed at the open position in the front of the air inlet component;

[0142] A top cover component, which is installed at the open position on the top of the air inlet component;

[0143] A base component, which is installed at the bottom of the air inlet component;

[0144] Among them, an upper air outlet with an upward opening direction is defined between the air inlet component, the top cover component and the panel component, and a lower air outlet with a forward opening direction is defined between the air inlet component, the base component and the panel component.

[0145] In the embodiment 12 of the cabinet-type air conditioner indoor unit of the present invention, air inlets are provided on the rear side or the left and right sides of the housing;

[0146] A body housing passage is defined between the outside of the air duct assembly and the housing, and an upper air duct and a lower air duct which are arranged up and down and are independent of each other are formed inside. The body housing passage communicates with the air inlets, the upper end of the upper air duct communicates with the upper air outlet, and the lower end of the lower air duct communicates with the lower air outlet;

[0147] A fan, which includes an upper fan arranged in the upper air duct and a lower fan arranged in the lower air duct. The upper fan has an upper air inlet communicating with the body housing passage, and the lower fan has a lower air inlet communicating with the body housing passage;

[0148] A heat exchanger assembly, which is arranged in the body housing passage and is opposite to the upper air inlet of the upper fan and the lower air inlet of the lower fan, and is used for heat exchange of the air flow before entering the upper fan and the air flow before entering the lower fan.

[0149] Further optionally, the heat exchanger assembly is a V-shaped heat exchanger with an opening toward the air inlet of the fan, and the V-shaped heat exchanger includes a first heat exchange portion extending obliquely from an upper end to a lower end, and a second heat exchange portion extending obliquely from a lower end to an upper end;

[0150] The first heat exchange part is opposite to the air inlet of the upper fan, and the second heat exchange part is opposite to the air inlet of the lower fan.

[0151] Further optionally, an upper heat exchange zone which tapers from top to bottom is defined between the first heat exchange portion and the shell, and a lower heat exchange zone which tapers from bottom to top is defined between the second heat exchange portion and the shell;

[0152] The lower area of ​​the upper heat exchange zone is opposite to the air inlet of the upper fan, and the upper area of ​​the lower heat exchange zone is opposite to the air inlet of the lower fan.

[0153] Further optionally, elastic top pressure structures are slidably arranged in both the upper heat exchange area and the lower heat exchange area;

[0154] One end of the elastic pressing structure is slidably arranged on the shell, and the other end opposite thereto is connected with a cleaning member and elastically pressed against the surface of the heat exchanger assembly;

[0155] The elastic pressing structure can be driven to slide along the height direction of the shell to clean the surface of the heat exchanger component.

[0156] Further optionally, two groups of heat exchanger assemblies are provided, and the two groups of heat exchanger assemblies are symmetrically arranged on both sides of the axial direction of the fan and opposite to the air inlets on both sides of the axial direction of the fan;

[0157] A cavity for accommodating the air duct component is formed between the two groups of heat exchanger components, and the air duct component is arranged in the cavity.

[0158] Further optionally, the housing has a housing front side disposed toward the user end, a housing rear side disposed away from the user end, and left and right sides of the housing between the housing front side and the housing rear side;

[0159] The fan is opposite to the left and right sides of the casing in its axial direction.

[0160] Further optionally, when the air inlet is arranged on the left and right sides of the shell, the air inlet is opposite to the heat exchanger assembly.

[0161] Further optionally, the air duct assembly includes a main air duct assembly and an upper channel and a lower channel connected to upper and lower ends of the main air duct assembly;

[0162] The upper end of the upper channel is connected to the upper air outlet, and the lower end of the lower channel is connected to the lower air outlet.

[0163] Further optionally, the cabinet air conditioner includes a single upper air outlet cooling mode, a single lower air outlet heating mode, and a cooling / heating upper and lower air outlet mode;

[0164] When the cabinet air conditioner operates in the upper air outlet cooling mode on the operation sheet, the upper fan starts and the lower fan shuts down.

[0165] When the cabinet air conditioner operates in the lower air outlet heating mode on the operation sheet, the upper fan shuts down and the lower fan starts.

[0166] When the cabinet air conditioner operates in the cooling / heating upper and lower air outlet mode, the upper fan starts and the lower fan starts.

[0167] Further optionally, the air inlet includes an upper air inlet and a lower air inlet which are distributed up and down. An upper on-off component is provided at the upper air inlet, and a lower on-off component is provided at the lower air inlet.

[0168] The cabinet air conditioner further includes:

[0169] A controller which can control the on-off of the upper air inlet and / or the on-off of the lower air inlet according to the operation mode of the cabinet air conditioner.

[0170] Further optionally, when the cabinet air conditioner operates in the upper air outlet cooling mode on the operation sheet, the upper on-off component controls the upper air inlet to close, and the lower on-off component controls the lower air inlet to open.

[0171] When the cabinet air conditioner operates in the lower air outlet heating mode on the operation sheet, the upper on-off component controls the upper air inlet to open, and the lower on-off component controls the lower air inlet to close.

[0172] When the cabinet air conditioner operates in the cooling / heating upper and lower air outlet mode, the upper on-off component controls the upper air inlet to open, and the lower on-off component controls the lower air inlet to open.

[0173] Further optionally, the housing includes:

[0174] A front panel and a rear case which are butt-jointed and installed. A receiving space for installing the air duct assembly and the heat exchanger assembly is formed between the butt-jointed front panel and the rear case.

[0175] The cabinet air conditioner further includes:

[0176] A base, on which the butt-jointed front panel and the rear case are located.

[0177] An upper air outlet with an upward opening is defined between the upper parts of the butt-jointed front panel and the rear case, and a lower air outlet with a forward opening is defined between the lower part of the front panel and the upper part of the base.

[0178] Further optionally, the housing encloses a housing cavity, the upper part of the housing forms the upper air outlet, the lower part of the housing forms the lower air outlet, and both the upper air outlet and the lower air outlet communicate with the room; the air duct assembly is arranged in the housing cavity.

[0179] The air duct assembly further forms an upper impeller cavity and a lower impeller cavity, and the upper air duct, the upper impeller cavity, the lower impeller cavity and the lower air duct are arranged in sequence from top to bottom; the upper impeller cavity forms an upper impeller cavity outlet, an upper impeller cavity inlet and an upper communication port; the upper air duct communicates with the upper air inlet and the upper impeller cavity outlet, and an upper air return port is formed on the side wall of the upper air duct; the lower impeller cavity forms a lower impeller cavity outlet, a lower impeller cavity inlet and a lower communication port; the lower air duct communicates with the lower air inlet and the lower impeller cavity outlet, and a lower air return port is formed on the side wall of the lower air duct; a communication duct is formed between the upper communication port and the lower communication port; the upper air return port communicates with the upper air duct and the housing cavity, and the lower air return port communicates with the lower air duct and the housing cavity; the upper impeller cavity inlet communicates with the upper impeller cavity and the housing cavity, and the lower impeller cavity inlet communicates with the lower impeller cavity and the housing cavity;

[0180] A first upper wind blocking structure is movably arranged at the upper air return port. The first upper wind blocking structure can open the upper air return port while disconnecting the upper air duct and the upper impeller cavity outlet, or close the upper air return port while connecting the upper air duct and the upper impeller cavity outlet; a second upper wind blocking structure is movably arranged at the upper communication port, and the second upper wind blocking structure can open or close the upper communication port;

[0181] A first lower wind blocking structure is movably arranged at the lower air return port. The first lower wind blocking structure can open the lower air return port while disconnecting the lower air duct and the lower impeller cavity outlet, or close the lower air return port while connecting the lower air duct and the lower impeller cavity outlet; a second lower wind blocking structure is movably arranged at the lower communication port, and the second lower wind blocking structure can open or close the lower communication port.

[0182] Further optionally, an upper impeller is rotatably arranged in the upper impeller cavity, and a lower impeller is rotatably arranged in the lower impeller cavity; the cabinet-type air conditioner indoor unit is provided with a lower air inlet and upper conventional air outlet mode and a lower air inlet and upper strong air outlet mode;

[0183] When the first upper wind blocking structure is in the A2 working position, the second upper wind blocking structure is in the B2 working position, the first lower wind blocking structure is in the C1 working position and the second lower wind blocking structure is in the D2 working position, the upper impeller rotates, and the cabinet-type air conditioner indoor unit can be in the lower air inlet and upper conventional air outlet mode;

[0184] When the first upper wind blocking structure is in the A2 working position, the second upper wind blocking structure is in the B1 working position, the first lower wind blocking structure is in the C1 working position and the second lower wind blocking structure is in the D1 working position, the upper impeller and the lower impeller both rotate and the rotation speed of the lower impeller is greater than that of the upper impeller, and the cabinet-type air conditioner indoor unit can be in the lower air inlet and upper strong air outlet mode;

[0185] When the first upper wind-blocking structure opens the upper air return opening and disconnects the upper air duct and the outlet of the upper air blade cavity, the first upper wind-blocking structure is in the A1 working position; when the first upper wind-blocking structure closes the upper air return opening and connects the upper air duct and the outlet of the upper air blade cavity, the first upper wind-blocking structure is in the A2 working position; when the second upper wind-blocking structure opens the upper communication port, the second upper wind-blocking structure is in the B1 working position; when the second upper wind-blocking structure closes the upper communication port, the second upper wind-blocking structure is in the B2 working position;

[0186] When the first lower wind-blocking structure opens the lower air return opening and disconnects the lower air duct and the outlet of the lower air blade cavity, the first lower wind-blocking structure is in the C1 working position; when the first lower wind-blocking structure closes the lower air return opening and connects the lower air duct and the outlet of the lower air blade cavity, the first lower wind-blocking structure is in the C2 working position; when the second lower wind-blocking structure opens the lower communication port, the second lower wind-blocking structure is in the D1 working position; when the second lower wind-blocking structure closes the lower communication port, the second lower wind-blocking structure is in the D2 working position.

[0187] Further optionally, the cabinet-type air conditioner indoor unit is provided with an upper air inlet and lower conventional air outlet mode and an upper air inlet and lower strong air outlet mode;

[0188] When the first upper wind-blocking structure is in the A1 working position, the second upper wind-blocking structure is in the B2 working position, the first lower wind-blocking structure is in the C2 working position, and the second lower wind-blocking structure is in the D2 working position, the lower air blade rotates, and the cabinet-type air conditioner indoor unit can be in the upper air inlet and lower conventional air outlet mode;

[0189] When the first upper wind-blocking structure is in the A1 working position, the second upper wind-blocking structure is in the B1 working position, the first lower wind-blocking structure is in the C2 working position, and the second lower wind-blocking structure is in the D1 working position, the upper air blade and the lower air blade both rotate and the rotation speed of the upper air blade is greater than that of the lower air blade, and the cabinet-type air conditioner indoor unit can be in the upper air inlet and lower strong air outlet mode.

[0190] Further optionally, the cabinet-type air conditioner indoor unit is provided with an upper and lower simultaneous air outlet mode;

[0191] When the first upper wind-blocking structure is in the A2 working position, the second upper wind-blocking structure is in the B2 working position, the first lower wind-blocking structure is in the C2 working position, and the second lower wind-blocking structure is in the D2 working position, the upper air blade and the lower air blade both rotate, and the cabinet-type air conditioner indoor unit is in the upper and lower simultaneous air outlet mode.

[0192] Further optionally, the second upper wind shield structure is coaxially arranged with the upper wind blade cavity and the profile of the second upper wind shield structure is adapted to that of the upper wind blade cavity; the second upper wind shield structure is slidably arranged at the upper communication port and is provided with an upper rack; the upper rack is controlled to slide so that the second upper wind shield structure can be in the B1 working position and the B2 working position; and / or,

[0193] The second lower wind shield structure is coaxially arranged with the lower wind blade cavity and the profile of the second lower wind shield structure is adapted to that of the lower wind blade cavity; the second lower wind shield structure is slidably arranged at the lower communication port and is provided with a lower rack; the lower rack is controlled to slide so that the second lower wind shield structure can be in the D1 working position and the D2 working position.

[0194] Further optionally, the housing includes a housing front side wall and a housing rear side wall which are arranged opposite to each other front and back;

[0195] The upper air duct includes an upper air duct front side wall and an upper air duct rear side wall. The upper air duct front side wall and the housing front side wall are correspondingly arranged. The upper air duct rear side wall corresponds to the housing rear side wall and forms the upper air return port. The first upper wind shield structure is rotatably arranged on the upper air duct rear side wall. When the first upper wind shield structure rotates towards the direction close to the upper air duct rear side wall, it can be in the A2 working position. When the first upper wind shield structure rotates towards the direction close to the upper air duct front side wall, it can be in the A1 working position;

[0196] The lower air duct includes a lower air duct front side wall and a lower air duct rear side wall. The lower air duct front side wall and the housing front side wall are correspondingly arranged. The lower air duct rear side wall corresponds to the housing rear side wall and forms the lower air return port. The first lower wind shield structure is rotatably arranged on the lower air duct rear side wall. When the first lower wind shield structure rotates towards the direction close to the lower air duct rear side wall, it can be in the C2 working position. When the first lower wind shield structure rotates towards the direction close to the lower air duct front side wall, it can be in the C1 working position.

[0197] Further optionally, the housing further includes a housing left side wall and a housing right side wall which are arranged opposite to each other left and right. Both the housing left side wall and the housing right side wall are connected to the housing front side wall and the housing rear side wall. The upper wind blade cavity inlet includes an upper wind blade cavity left inlet and an upper wind blade cavity right inlet, and the upper wind blade cavity left inlet and the upper wind blade cavity right inlet are respectively arranged close to the housing left side wall and the housing right side wall. The lower wind blade cavity inlet includes a lower wind blade cavity left inlet and a lower wind blade cavity right inlet, and the lower wind blade cavity left inlet and the lower wind blade cavity right inlet are respectively arranged close to the housing left side wall and the housing right side wall;

[0198] The cabinet-type air conditioner indoor unit further includes an indoor heat exchanger, which includes a left heat exchanger and a right heat exchanger both arranged in the cavity of the housing. The left heat exchanger is arranged near the left inlet of the upper air duct cavity and the left inlet of the lower air duct cavity, and the right heat exchanger is arranged near the right inlet of the upper air duct cavity and the right inlet of the lower air duct cavity.

[0199] Further optionally, the upper air duct includes an upper main air duct and an upper auxiliary air duct, and the lower air duct includes a lower main air duct and a lower auxiliary air duct; the air duct assembly includes a volute, a volute cover, an upper ventilation shell and a lower ventilation shell. The volute and the volute cover are cooperatively connected to form the upper main air duct, the upper air duct cavity, the lower air duct cavity and the lower main air duct which are arranged in sequence from top to bottom;

[0200] The upper ventilation shell is arranged at the top of the upper main air duct and forms an upper auxiliary air duct, and the upper auxiliary air duct communicates the upper air outlet and the upper main air duct;

[0201] The lower ventilation shell is arranged at the bottom of the lower main air duct and forms a lower auxiliary air duct, and the lower auxiliary air duct communicates the lower air outlet and the lower main air duct.

[0202] Further optionally, an upper air inlet is further formed in the upper part of the housing, and the upper air inlet is located at the rear side of the upper air outlet; a lower air inlet is further formed in the lower part of the housing; both the upper air inlet and the lower air inlet are communicated with the housing cavity;

[0203] Indoor air can enter the housing cavity through the upper air inlet, and then enter the upper air duct cavity through the upper air duct cavity inlet or enter the lower air duct cavity through the lower air duct cavity inlet;

[0204] Indoor air can enter the housing cavity through the lower air inlet, and then enter the lower air duct cavity through the lower air duct cavity inlet or enter the upper air duct cavity through the upper air duct cavity inlet.

[0205] Further optionally, a wind guide shell is arranged on the upper side of the upper air outlet. The wind guide shell forms a first wind guide surface and a second wind guide surface which are arranged opposite to each other in the front and rear. The first wind guide surface is arranged near the upper air outlet, and the first wind guide surface is used for discharging the air in the upper air duct to the room through the upper air outlet or introducing the indoor air near the upper air outlet into the upper air duct; the second wind guide surface is arranged near the upper air inlet, and the second wind guide surface is used for introducing the indoor air near the upper air inlet into the housing cavity through the upper air inlet.

[0206] Further optionally, the upper air outlet is formed in the upper part of the housing, and the lower air outlet is formed in the lower part of the housing; both the upper air outlet and the lower air outlet are communicated with the room;

[0207] The air duct assembly is disposed inside the housing, and the air duct assembly further forms an upper impeller chamber and a lower impeller chamber. The upper air duct, the upper impeller chamber, the lower impeller chamber, and the lower air duct are arranged in sequence from top to bottom. The upper air duct includes an upper auxiliary air duct and an upper main air duct. The upper air inlet, the upper auxiliary air duct, the upper main air duct, and the upper impeller chamber are communicated in sequence. An upper air return opening is formed on the side wall of the upper auxiliary air duct. The lower air duct communicates the lower impeller chamber and the lower air outlet, and a first lower air return opening is formed on the side wall of the lower air duct.

[0208] A communication cavity is formed inside the housing between the upper air return opening and the first lower air return opening. The upper air return opening communicates the upper auxiliary air duct and the communication cavity, and the upper impeller chamber and the communication cavity are communicated through an upper impeller chamber inlet. The first lower air return opening communicates the lower air duct and the communication cavity, and the lower impeller chamber and the communication cavity are communicated through a lower impeller chamber inlet.

[0209] When the upper air return opening is controlled to be closed, the upper air inlet is completely or partially communicated with the upper main air duct, and the first lower air return opening is controlled to be opened and the lower air duct and the lower impeller chamber are controlled to be disconnected, the floor-standing air conditioner indoor unit can form a downward air inlet and upward air outlet air flow path.

[0210] When the upper air return opening is controlled to be opened and the upper air inlet is disconnected from the upper main air duct, and the first lower air return opening is controlled to be closed and the lower air duct and the lower impeller chamber are controlled to be communicated, the floor-standing air conditioner indoor unit can form an upward air inlet and downward air outlet air flow path.

[0211] Further optionally, an upper wind blocking structure is movably disposed at the upper air return opening. The upper wind blocking structure has an A1 working position, an A2 working position, and an A3 working position arranged in sequence.

[0212] When the upper wind blocking structure is in the A1 working position, the upper wind blocking structure closes the upper air return opening, and the upper air inlet is completely communicated with the upper main air duct through the upper auxiliary air duct.

[0213] When the upper wind blocking structure is in the A2 working position, the upper wind blocking structure opens the upper air return opening, a part of the upper air inlet is communicated with the upper air return opening through a part of the upper auxiliary air duct, and another part of the upper air inlet is communicated with the upper main air duct through another part of the upper auxiliary air duct.

[0214] When the upper wind blocking structure is in the A3 working position, the upper wind blocking structure opens the upper air return opening, the upper air inlet is completely communicated with the upper air return opening, and the upper air inlet is not communicated with the upper main air duct.

[0215] Further optionally, a first lower wind blocking structure is movably disposed at the first lower air return opening. The first lower wind blocking structure has a B1 working position and a B2 working position.

[0216] When the first lower wind deflector structure is in the B1 working position, the first lower wind deflector structure opens the first lower air return opening and disconnects the lower air duct and the lower air impeller cavity at the same time;

[0217] When the first lower wind deflector structure is in the B2 working position, the first lower wind deflector structure closes the first lower air return opening and connects the lower air duct and the lower air impeller cavity at the same time.

[0218] Further optionally, the lower air duct includes a lower main air duct and a lower auxiliary air duct. The side wall of the lower main air duct forms the first lower air return opening, and the lower auxiliary air duct connects the lower main air duct and the lower air outlet;

[0219] A lower air inlet is further formed in the lower part of the housing, and a second lower air return opening is formed in the side wall of the lower auxiliary air duct; a second lower wind deflector structure is movably arranged at the second lower air return opening, and the second lower wind deflector structure has a C1 working position and a C2 working position;

[0220] When the second lower wind deflector structure is in the C1 working position, the second lower wind deflector structure opens the second lower air return opening, and a lower auxiliary air duct is connected between the second lower air return opening and the lower air inlet;

[0221] When the second lower wind deflector structure is in the C2 working position, the second lower wind deflector structure closes the second lower air return opening.

[0222] Further optionally, the lower air inlet and upper air outlet air flow path includes a lower air inlet and upper strong air outlet air flow path and a lower air inlet and upper conventional air outlet air flow path, and the upper air inlet and lower air outlet air flow path includes an upper air inlet and lower strong air outlet air flow path and an upper air inlet and lower conventional air outlet air flow path;

[0223] When the upper wind deflector structure is in the A1 working position, the first lower wind deflector structure is in the B1 working position, and the second lower wind deflector structure is in the C1 working position, the lower air inlet and upper strong air outlet air flow path is formed in the cabinet-type air conditioner indoor unit;

[0224] When the upper wind deflector structure is in the A2 working position, the first lower wind deflector structure is in the B1 working position, and the second lower wind deflector structure is in the C1 working position, the lower air inlet and upper conventional air outlet air flow path is formed in the cabinet-type air conditioner indoor unit;

[0225] When the upper wind deflector structure is in the A3 working position, the first lower wind deflector structure is in the B2 working position, and the second lower wind deflector structure is in the C1 working position, the upper air inlet and lower strong air outlet air flow path is formed in the cabinet-type air conditioner indoor unit;

[0226] When the upper wind deflector structure is in the A3 working position, the first lower wind deflector structure is in the B2 working position, and the second lower wind deflector structure is in the C2 working position, the upper air inlet and lower conventional air outlet air flow path is formed in the cabinet-type air conditioner indoor unit.

[0227] Further optionally, a partition is provided at the upper air inlet, and the partition divides the upper air inlet into an upper air inlet and an upper air supply inlet which are oppositely arranged front and back, and the partition is located inside the housing;

[0228] The housing includes a housing front side wall and a housing rear side wall which are oppositely arranged front and back. The upper auxiliary air duct includes an upper auxiliary air duct front side wall corresponding to the housing front side wall and an upper auxiliary air duct rear side wall corresponding to the housing rear side wall. The upper auxiliary air duct rear side wall forms the upper air return opening; the lower end of the upper air baffle structure is rotatably arranged on the upper auxiliary air duct rear side wall;

[0229] When the upper air baffle structure contacts the upper auxiliary air duct rear side wall, it is in the A1 working position, and both the upper air inlet and the upper air supply inlet are communicated with the upper main air duct; when the upper end of the upper air baffle structure abuts against the partition, it is in the A2 working position, the upper air supply inlet and the upper air return opening are communicated, and the upper air inlet and the upper main air duct are communicated; when the upper end of the upper air baffle structure abuts against the upper auxiliary air duct front side wall, it is in the A3 working position, and both the upper air inlet and the upper air supply inlet are communicated with the upper air return opening.

[0230] Further optionally, the housing includes a housing front side wall and a housing rear side wall which are oppositely arranged front and back. The lower main air duct includes a lower main air duct front side wall corresponding to the housing front side wall and a lower main air duct rear side wall corresponding to the housing rear side wall. The first lower air return opening is formed on the lower main air duct rear side wall; the upper end of the first lower air baffle structure is rotatably arranged on the lower main air duct rear side wall; when the first lower air baffle structure contacts the lower main air duct rear side wall, it is in the B2 working position, and when the upper end of the first lower air baffle structure contacts the lower main air duct front side wall, it is in the B1 working position;

[0231] The lower auxiliary air duct includes a lower auxiliary air duct front side wall corresponding to the housing front side wall and a lower auxiliary air duct rear side wall corresponding to the housing rear side wall. The second lower air return opening is formed on the lower auxiliary air duct rear side wall; the upper end of the second lower air baffle structure is rotatably arranged on the lower auxiliary air duct rear side wall; when the second lower air baffle structure contacts the lower auxiliary air duct rear side wall, it is in the C2 working position, and when the lower end of the second lower air baffle structure contacts the housing rear side wall, it is in the C1 working position.

[0232] Further optionally, the air duct assembly includes a volute, a volute cover, an upper ventilation housing and a lower ventilation housing; the volute and the volute cover are cooperatively connected to form an upper main air duct, an upper air blade cavity, a lower air blade cavity and a lower main air duct which are sequentially arranged from top to bottom; an upper air blade is rotatably arranged in the upper air blade cavity, and a lower air blade is rotatably arranged in the lower air blade cavity;

[0233] The upper ventilation housing is arranged on the top of the upper main air duct and forms the upper auxiliary air duct;

[0234] The lower ventilation housing is disposed at the bottom of the lower main air duct and forms the lower secondary air duct.

[0235] Further optionally, the housing encloses a housing cavity, and the housing includes a front housing side wall. An upper air inlet is formed on the upper side of the front housing side wall, and a lower air inlet is formed on the lower side of the front housing side wall;

[0236] The upper air duct and the lower air duct are disposed in the housing cavity with vertical and horizontal staggering. The upper end of the upper air duct communicates with the upper air inlet, and the lower end of the upper air duct communicates with the housing cavity; the upper end of the lower air duct communicates with the housing cavity, and the lower end of the lower air duct communicates with the lower air inlet;

[0237] The cabinet-type air conditioner indoor unit further includes an indoor heat exchanger. The indoor heat exchanger is disposed between the upper air duct and the lower air duct; the indoor heat exchanger can perform heat exchange with the air flowing between the upper air duct and the lower air duct;

[0238] The cabinet-type air conditioner indoor unit is provided with an air inlet and outlet mode, and the air inlet and outlet mode includes a lower air inlet and upper air outlet mode and an upper air inlet and lower air outlet mode;

[0239] When the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode, indoor air can enter the lower air duct through the lower air inlet, then enter the upper air duct through the indoor evaporator and be discharged through the upper air outlet; when the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode, indoor air can enter the upper air duct through the upper air inlet, then enter the lower air duct through the indoor evaporator and be discharged through the lower air inlet.

[0240] Further optionally, the upper air inlet includes an upper left air inlet and an upper right air inlet that are oppositely disposed in the left-right direction, and the lower air inlet includes a lower left air inlet and a lower right air inlet that are oppositely disposed in the left-right direction; the upper left air inlet communicates with the upper end of the upper air duct, and the lower right air inlet communicates with the lower end of the lower air duct;

[0241] The housing cavity includes an upper cavity and a lower cavity. The upper cavity is disposed side by side with the upper air duct in the left-right direction, and the upper cavity communicates with the upper right air inlet; the lower cavity is disposed side by side with the lower air duct in the left-right direction, and the lower cavity communicates with the lower left air inlet;

[0242] The cabinet-type air conditioner indoor unit further includes an upper baffle and a lower baffle. The upper baffle is movably disposed at the upper right air inlet, and the upper baffle can open or close the upper right air inlet; the lower baffle is movably disposed at the lower left air inlet, and the lower baffle can open or close the lower left air inlet.

[0243] Further optionally, the upper air duct includes an upper main air duct and an upper air blade cavity, and the upper left air outlet, the upper main air duct, and the upper air blade cavity are communicated in sequence from top to bottom; an upper air blade is rotatably arranged in the upper air blade cavity;

[0244] The lower air duct includes a lower main air duct and a lower air blade cavity, and the lower air blade cavity, the lower main air duct, and the lower right air outlet are communicated in sequence from top to bottom; a lower air blade is rotatably arranged in the lower air blade cavity.

[0245] Further optionally, the lower air inlet and upper air outlet mode includes a first lower air inlet and upper air outlet mode. When the cabinet-type air conditioner indoor unit is in the first lower air inlet and upper air outlet mode, both the lower left air outlet and the lower right air outlet are in an open state, the upper left air outlet is in an open state, and the upper right air outlet is in a closed state; indoor air near the lower left air outlet can enter the lower cavity through the lower left air outlet, and indoor air near the lower right air outlet can enter the lower main air duct through the lower right air outlet and flow through the lower air blade cavity. The air in the lower cavity and the lower air blade cavity both enter the upper air blade cavity and are discharged through the upper main air duct and the upper left air outlet;

[0246] The upper air inlet and lower air outlet mode includes a first upper air inlet and lower air outlet mode. When the cabinet-type air conditioner indoor unit is in the first upper air inlet and lower air outlet mode, the upper left air outlet and the upper right air outlet are in an open state, the lower left air outlet is in a closed state, and the lower right air outlet is in an open state; indoor air near the upper left air outlet can enter the upper main air duct through the upper left air outlet and flow through the upper air blade cavity, and indoor air near the upper right air outlet can enter the upper cavity through the upper right air outlet. The air in the upper cavity and the upper air blade cavity both enter the lower air blade cavity and are discharged through the lower main air duct and the lower right air outlet.

[0247] Further optionally, the lower air inlet and upper air outlet mode includes a second lower air inlet and upper air outlet mode. When the cabinet-type air conditioner indoor unit is in the second lower air inlet and upper air outlet mode, the lower left air outlet is in a closed state, both the lower right air outlets are in an open state, the upper left air outlet is in an open state, and the upper right air outlet is in a closed state; indoor air can enter the lower main air duct through the lower right air outlet and flow through the lower air blade cavity, and then enter the upper main air duct through the upper air blade cavity and be discharged through the upper left air outlet;

[0248] The upper air inlet and lower air outlet mode includes a second upper air inlet and lower air outlet mode. When the cabinet-type air conditioner indoor unit is in the second upper air inlet and lower air outlet mode, the upper left air outlet is in an open state, the upper right air outlet is in a closed state, the lower left air outlet is in a closed state, and the lower right air outlet is in an open state; indoor air can enter the upper main air duct through the upper left air outlet and flow through the upper air blade cavity, and then enter the lower main air duct through the lower air blade cavity and be discharged through the lower right air outlet.

[0249] Further optionally, the indoor heat exchanger is a plate heat exchanger, the main heat exchange surface of the plate heat exchanger is inclined relative to the horizontal plane, the upper part of the plate heat exchanger is located in the upper cavity, and the lower part of the plate heat exchanger is located in the lower cavity.

[0250] Further optionally, an upper flaring structure is formed at one end of the upper main air duct close to the upper left air outlet; from top to bottom, the flow area of the upper flaring structure gradually decreases; and / or,

[0251] A lower flaring structure is formed at one end of the lower main air duct close to the lower right air outlet; from top to bottom, the flow area of the lower flaring structure gradually increases.

[0252] Further optionally, the upper air outlet is provided at the upper part of the housing, and the lower air outlet is provided at the lower part of the housing; the air duct assembly is arranged inside the housing, and the air duct assembly includes an upper air duct component, a lower air duct component, an upper centrifugal fan and a lower centrifugal fan. The upper air duct component includes the upper air duct and an upper fan cavity which are communicated with each other. The upper air duct is communicated with the upper air outlet, and the upper centrifugal fan is arranged in the upper fan cavity. The lower air duct component includes the lower air duct and a lower fan cavity which are communicated with each other. The lower air duct is communicated with the lower air outlet, and the lower centrifugal fan is arranged in the lower fan cavity;

[0253] The cabinet-type air conditioner indoor unit further includes a heat exchange component and a damper component. The heat exchange component is arranged inside the housing. The heat exchange component includes an upper heat exchange part and a lower heat exchange part. An upper heat exchange cavity is defined between the upper heat exchange part and the housing, and the upper air duct component is arranged in the upper heat exchange cavity. A lower heat exchange cavity is defined between the lower heat exchange part and the housing, and the lower air duct component is arranged in the lower heat exchange cavity;

[0254] The damper component is arranged inside the housing and is located between the upper heat exchange cavity and the lower heat exchange cavity. The damper component can block the air flow path between the upper heat exchange cavity and the lower heat exchange part when the cabinet-type air conditioner indoor unit operates in the heating mode, and block the air flow path between the lower heat exchange cavity and the upper heat exchange part when the cabinet-type air conditioner indoor unit operates in the cooling mode.

[0255] Further optionally, the upper air duct component and the lower air duct component are arranged in a vertically offset manner. The upper air duct component and the lower air duct component are arranged in a vertically offset manner, and the upper heat exchange part is arranged on one side of the upper air duct component close to the lower air duct component, and the lower heat exchange part is arranged on one side of the lower air duct component close to the upper air duct component.

[0256] Further optionally, the upper heat exchange component is inclined downward towards the upper air duct component, and the lower heat exchange component is inclined downward away from the lower air duct component.

[0257] Further optionally, the air door assembly includes:

[0258] a support frame disposed between the upper heat exchange component and the lower heat exchange component;

[0259] a moving mechanism including a rack, a gear, and a driving motor. The rack is disposed on the support frame and can move relative to the support frame. The gear is disposed at a position corresponding to the rack. The rack meshes with the gear. The driving mechanism is connected to the gear for driving the gear to rotate. The rotation of the gear drives the rack to move. The moving positions of the rack include a first position and a second position. When the rack moves to the first position, the rack blocks the air flow path between the upper heat exchange chamber and the lower heat exchange component. When the rack moves to the second position, the rack blocks the air flow path between the lower heat exchange chamber and the upper heat exchange component.

[0260] Further optionally, the housing includes a front side plate. The upper air outlet is disposed on the upper side of the front side plate, and the lower air outlet is disposed on the lower side of the front side plate.

[0261] Further optionally, the upper air outlet includes a first air outlet and a second air outlet. The first air outlet communicates with the upper air duct, and the second air outlet communicates with the upper heat exchange chamber;

[0262] The lower air outlet includes a third air outlet and a fourth air outlet. The third air outlet communicates with the lower air duct, and the fourth air outlet communicates with the lower heat exchange chamber.

[0263] Further optionally, the floor-standing air conditioner indoor unit includes an upper air deflector and a lower air deflector. The upper air deflector is disposed at the second air outlet for opening and closing the second air outlet. The lower air deflector is disposed at the fourth air outlet for opening and closing the fourth air outlet.

[0264] Further optionally, the floor-standing air conditioner indoor unit further includes an upper axial flow fan and a lower axial flow fan. The upper axial flow fan is disposed at a position in the upper heat exchange chamber opposite to the second air outlet, and the lower axial flow fan is disposed at a position in the lower heat exchange chamber opposite to the fourth air outlet.

[0265] Further optionally, the upper air duct and the lower air duct are arranged one above the other and are offset in the horizontal direction; the upper air duct forms an upper air blade cavity, the upper air blade cavity includes an upper air blade cavity inlet and an upper air blade cavity outlet, and an upper air blade is rotatably arranged in the upper air blade cavity; the lower air duct forms a lower air blade cavity, the lower air blade cavity includes a lower air blade cavity inlet and a lower air blade cavity outlet, and a lower air blade is rotatably arranged in the lower air blade cavity; the air duct assembly includes:

[0266] An upper connecting shell, which is arranged between the upper air blade cavity inlet and the lower air blade cavity outlet, and an upper connecting cavity is formed inside the upper connecting shell; the upper connecting cavity includes an upper connecting cavity outlet and an upper connecting cavity C1 inlet, the upper connecting cavity outlet is communicated with the upper air blade cavity inlet, and the upper connecting cavity C1 inlet is communicated with the lower air blade cavity outlet;

[0267] A lower connecting shell, which is arranged between the lower air blade cavity inlet and the upper air blade cavity outlet, and a lower connecting cavity is formed inside the lower connecting shell; the lower connecting cavity includes a lower connecting cavity outlet and a lower connecting cavity D1 inlet, the lower connecting cavity outlet is communicated with the lower air blade cavity inlet, and the lower connecting cavity D1 inlet is communicated with the upper air blade cavity outlet;

[0268] Both the upper connecting cavity C1 inlet and the lower connecting cavity D1 inlet can be controlled to be opened or closed; when the upper connecting cavity C1 inlet is in the open state and the lower connecting cavity D1 inlet is in the closed state, the air in the lower air blade cavity can enter the upper air blade cavity through the upper connecting cavity; when the upper connecting cavity C1 inlet is in the closed state and the lower connecting cavity D1 inlet is in the open state, the air in the upper air blade cavity can enter the lower air blade cavity through the lower connecting cavity.

[0269] Further optionally, both the upper air blade and the lower air blade are centrifugal air blades; the upper air blade cavity inlet includes an upper air blade cavity A1 inlet, the upper air blade cavity A1 inlet is formed at one axial end of the upper air blade cavity and the upper air blade cavity A1 inlet is communicated with the upper connecting cavity outlet; the upper air blade cavity outlet includes an upper air blade cavity A3 outlet, the upper air blade cavity A3 outlet is formed at the lower radial end of the upper air blade cavity and the upper air blade cavity A3 outlet is communicated with the lower connecting cavity D1 inlet;

[0270] The lower air blade cavity inlet includes a lower air blade cavity B1 inlet, the lower air blade cavity B1 inlet is formed at one axial end of the lower air blade cavity and the lower air blade cavity B1 inlet is communicated with the lower connecting cavity outlet; the lower air blade cavity outlet includes a lower air blade cavity B3 outlet, the lower air blade cavity B3 outlet is formed at the upper radial end of the lower air blade cavity and the lower air blade cavity B3 outlet is communicated with the upper connecting cavity C1 inlet.

[0271] Further optionally, the axis of the upper blade cavity is parallel to the axis of the lower blade cavity, the A1 inlet of the upper blade cavity is close to the B1 inlet of the lower blade cavity, and the A3 outlet of the upper blade cavity is close to the B3 outlet of the lower blade cavity.

[0272] Further optionally, a housing cavity is formed inside the housing; the upper air duct, the lower air duct, the upper connecting shell and the lower connecting shell are all arranged in the housing cavity; the upper connecting cavity further includes a C2 inlet of the upper connecting cavity, and the C2 inlet of the upper connecting cavity communicates with the housing cavity; the lower connecting cavity further includes a D2 inlet of the lower connecting cavity, and the D2 inlet of the lower connecting cavity communicates with the housing cavity; both the C2 inlet of the upper connecting cavity and the D2 inlet of the lower connecting cavity can be controlled to be opened or closed;

[0273] When the C1 inlet of the upper connecting cavity is in an open state and the C2 inlet of the upper connecting cavity is in a closed state, and the D1 inlet of the lower connecting cavity is in a closed state and the D2 inlet of the lower connecting cavity is in an open state, a part of the air in the housing cavity can enter the lower connecting cavity through the D2 inlet of the lower connecting cavity, and then enter the upper blade cavity through the lower blade cavity and the upper connecting cavity;

[0274] When the C1 inlet of the upper connecting cavity is in a closed state and the C2 inlet of the upper connecting cavity is in an open state, and the D1 inlet of the lower connecting cavity is in an open state and the D2 inlet of the lower connecting cavity is in a closed state, a part of the air in the housing cavity can enter the upper connecting cavity through the C2 inlet of the upper connecting cavity, and then enter the lower blade cavity through the upper blade cavity and the lower connecting cavity.

[0275] Further optionally, an upper baffle is movably arranged in the upper connecting cavity, and the upper baffle can open the C1 inlet of the upper connecting cavity while closing the C2 inlet of the upper connecting cavity, or close the C1 inlet of the upper connecting cavity while opening the C2 inlet of the upper connecting cavity;

[0276] A lower baffle is movably arranged in the lower connecting cavity, and the lower baffle can open the D1 inlet of the lower connecting cavity while closing the D2 inlet of the lower connecting cavity, or close the D1 inlet of the lower connecting cavity while opening the D2 inlet of the lower connecting cavity.

[0277] Further optionally, the upper air outlet includes an upper air outlet and an upper air inlet, the upper air outlet and the upper air inlet are formed at the upper part of the housing, and the relative setting direction of the upper air outlet and the upper air inlet is the same as the dislocation direction of the upper air duct and the lower air duct; the lower air outlet includes a lower air outlet and a lower air inlet, the lower air outlet and the lower air inlet are formed at the lower part of the housing, and the relative setting direction of the lower air outlet and the lower air inlet is the same as the dislocation direction of the upper air duct and the lower air duct; both the upper air inlet and the lower air inlet communicate with the housing cavity;

[0278] The upper air duct further includes an upper main air duct, and the upper main air duct communicates with the upper air outlet and the upper air blade cavity; the lower air duct further includes a lower main air duct, and the lower main air duct communicates with the lower air outlet and the lower air blade cavity;

[0279] The upper air outlet, the upper air inlet, the lower air outlet and the lower air inlet can all be controlled to be opened or closed, so that the floor-standing air conditioner indoor unit forms a lower air inlet and upper air outlet air flow path with air entering from the lower air inlet and exiting from the upper air outlet, or an upper air inlet and lower air outlet air flow path with air entering from the upper air inlet and exiting from the lower air outlet.

[0280] Further optionally, when the lower air inlet is in an open state and the lower air outlet is in a closed state, the inlet of the lower communication cavity D2 is in an open state and the inlet of the lower communication cavity D1 is in a closed state, the inlet of the upper communication cavity C1 is in an open state and the inlet of the upper communication cavity C2 is in a closed state, and the upper air inlet is in a closed state and the upper air outlet is in an open state, the floor-standing air conditioner indoor unit forms the lower air inlet and upper air outlet air flow path;

[0281] When the lower air inlet is in a closed state and the lower air outlet is in an open state, the inlet of the lower communication cavity D2 is in a closed state and the inlet of the lower communication cavity D1 is in an open state, the inlet of the upper communication cavity C1 is in a closed state and the inlet of the upper communication cavity C2 is in an open state, and the upper air inlet is in an open state and the upper air outlet is in a closed state, the floor-standing air conditioner indoor unit forms the upper air inlet and lower air outlet air flow path.

[0282] Further optionally, the housing includes a front housing wall, and the upper air outlet is formed on the left side of the upper part of the front housing wall, and the upper air inlet is formed on the right side of the upper part of the front housing wall;

[0283] The lower air inlet is formed on the left side of the lower part of the front housing wall, and the lower air outlet is formed on the right side of the lower part of the front housing wall.

[0284] Further optionally, the floor-standing air conditioner indoor unit further includes an indoor heat exchanger; the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger, and the first indoor heat exchanger is arranged in the space formed by the upper air duct, the upper communication housing and the housing; the air entering the housing cavity from the upper air inlet can enter the upper communication cavity through the first indoor heat exchanger;

[0285] The second indoor heat exchanger is arranged in the space formed by the lower air duct, the lower communication housing and the housing; the air entering the housing cavity from the lower air inlet can enter the lower communication cavity through the second indoor heat exchanger.

[0286] Further optionally, the cabinet-type air conditioner indoor unit further includes an indoor heat exchanger; the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger, and the first indoor heat exchanger is disposed in the upper communication cavity; the air entering the upper communication cavity from the inlet of the upper communication cavity C1 or the inlet of the upper communication cavity C2 can flow through the first indoor heat exchanger;

[0287] The second indoor heat exchanger is disposed in the lower communication cavity; the air entering the lower communication cavity from the inlet of the lower communication cavity D1 or the inlet of the lower communication cavity D2 can flow through the second indoor heat exchanger.

[0288] Further optionally, an upper air outlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing; both the upper air outlet and the lower air outlet are in communication with the interior of the room;

[0289] The air duct assembly is disposed inside the housing and the air duct assembly further forms a blower cavity, and the upper air duct, the blower cavity and the lower air duct are arranged in sequence from top to bottom; the blower cavity includes a blower cavity upper outlet, a blower cavity inlet and a blower cavity lower outlet; the upper air duct communicates the upper air outlet and the blower cavity upper outlet, and an upper air return opening is formed in the side wall of the upper air duct; the lower air duct communicates the lower air outlet and the blower cavity lower outlet, and a lower air return opening is formed in the side wall of the lower air duct;

[0290] A communication cavity is formed between the housing and the air duct assembly; the upper air return opening communicates the communication cavity and the upper air duct, the lower air return opening communicates the communication cavity and the lower air duct, and the blower cavity inlet communicates the communication cavity and the blower cavity;

[0291] Two upper wind blocking structures are movably disposed at the upper air return opening, and the two upper wind blocking structures have a first working position and a second working position; when the two upper wind blocking structures are in the first working position, the upper air return opening is in a closed state and the upper air duct and the blower cavity upper outlet are in communication; when the two upper wind blocking structures are in the second working position, the upper air return opening is in an open state, the upper air duct and the blower cavity upper outlet are not in communication, and an upper air guiding duct is formed between the two upper wind blocking structures;

[0292] Two lower wind blocking structures are movably disposed at the lower air return opening, and the two lower wind blocking structures have a third working position and a fourth working position; when the two lower wind blocking structures are in the third working position, the lower air return opening is in a closed state and the lower air duct and the blower cavity lower outlet are in communication; when the two lower wind blocking structures are in the fourth working position, the lower air return opening is in an open state, the lower air duct and the blower cavity lower outlet are not in communication, and a lower air guiding duct is formed between the two lower wind blocking structures.

[0293] Further optionally, the cabinet-type air conditioner indoor unit is provided with a lower air inlet and upper air outlet mode and an upper air inlet and lower air outlet mode;

[0294] When the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode, the two upper air baffle structures are in the first working position and the two lower air baffle structures are in the fourth working position; indoor air can enter the lower air duct through the lower air inlet, enter the communication cavity through the lower air return opening and the lower air guide duct, then flow through the air impeller cavity and the upper air duct in sequence, and be discharged through the upper air outlet.

[0295] When the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode, the two upper air baffle structures are in the second working position and the two lower air baffle structures are in the third working position; indoor air can enter the upper air duct through the upper air outlet, enter the communication cavity through the upper air return opening and the upper air guide duct, then flow through the air impeller cavity and the lower air duct in sequence, and be discharged through the lower air outlet.

[0296] Further optionally, the two upper air baffle structures include a first upper air baffle structure and a second upper air baffle structure. The first upper air baffle structure is movably arranged on the upper edge of the upper air return opening, and the second upper air baffle structure is movably arranged on the lower edge of the upper air return opening.

[0297] When the two upper air baffle structures are in the first working position, the plate surfaces of the first upper air baffle structure and the second upper air baffle structure are both abutted against the side wall of the upper air duct and close the upper air return opening, so that the upper air duct is communicated with the upper outlet of the air impeller cavity.

[0298] When the two upper air baffle structures are in the second working position, the lower end of the first upper air baffle structure and the upper end of the second upper air baffle structure are both far away from the side wall of the upper air duct and open the upper air return opening. The second upper air baffle structure makes the upper air duct not communicate with the upper outlet of the air impeller cavity; an upper air guide duct is formed between the first upper air baffle structure and the second upper air baffle structure for guiding the air in the upper air duct to the communication cavity.

[0299] Further optionally, the housing further includes a housing rear side wall disposed opposite to the front side wall of the housing; the upper air duct includes an upper main air duct. The side wall of the upper main air duct includes an upper main air duct front side wall and an upper main air duct rear side wall. The upper main air duct front side wall corresponds to the front side wall of the housing, and the upper main air duct rear side wall corresponds to the housing rear side wall; the upper air return opening is formed in the upper main air duct rear side wall; the first upper air baffle structure is rotatably arranged on the outer wall surface of the upper main air duct rear side wall, and the second upper air baffle structure is rotatably arranged on the inner wall surface of the upper main air duct rear side wall.

[0300] When the two upper air baffle structures are in the first working position, the plate surfaces of the first upper air baffle structure and the second upper air baffle structure are both abutted against the upper main air duct rear side wall.

[0301] When the two upper windshields are in the second working position, the lower end of the first upper windshield abuts against the rear side wall of the housing, and the upper end of the second upper windshield abuts against the front side wall of the upper main air duct.

[0302] Further optionally, the two lower windshields include a first lower windshield and a second lower windshield. The first lower windshield is movably arranged at the lower edge of the lower air return opening, and the second lower windshield is movably arranged at the upper edge of the lower air return opening;

[0303] When the two lower windshields are in the third working position, the plate surfaces of the first lower windshield and the second lower windshield are both abutted against the side wall of the lower air duct and close the lower air return opening, so that the lower air duct is communicated with the lower outlet of the air blade cavity;

[0304] When the two lower windshields are in the fourth working position, the upper end of the first lower windshield and the lower end of the second lower windshield are both far away from the side wall of the lower air duct, and the lower air return opening is opened. The second lower windshield disconnects the lower air duct from the lower outlet of the air blade cavity; a lower air guiding duct is formed between the first lower windshield and the second lower windshield for guiding the air in the lower air duct to the communication cavity.

[0305] Further optionally, the housing further includes a rear side wall of the housing disposed opposite to the front side wall of the housing; the lower air duct includes a lower main air duct. The side wall of the lower main air duct includes a front side wall of the lower main air duct and a rear side wall of the lower main air duct. The front side wall of the lower main air duct corresponds to the front side wall of the housing, and the rear side wall of the lower main air duct corresponds to the rear side wall of the housing; the rear side wall of the lower main air duct forms the lower air return opening; the first lower windshield is rotatably arranged on the outer wall surface of the rear side wall of the lower main air duct, and the second lower windshield is rotatably arranged on the inner wall surface of the rear side wall of the lower main air duct;

[0306] When the two lower windshields are in the third working position, the plate surfaces of the first lower windshield and the second lower windshield are both abutted against the rear side wall of the lower main air duct;

[0307] When the two lower windshields are in the fourth working position, the upper end of the first lower windshield abuts against the rear side wall of the housing, and the lower end of the second lower windshield abuts against the front side wall of the lower main air duct.

[0308] Further optionally, the housing further includes a left side wall of the housing; the inlet of the impeller chamber includes a left inlet of the impeller chamber, and the left inlet of the impeller chamber is disposed close to the left side wall of the housing; the cabinet-type air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger includes a left heat exchanger disposed in the communication chamber, and the left heat exchanger is disposed close to the left inlet of the impeller chamber; and / or,

[0309] The housing further includes a right side wall of the housing; the inlet of the impeller chamber includes a right inlet of the impeller chamber, and the right inlet of the impeller chamber is disposed close to the right side wall of the housing; the cabinet-type air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger includes a right heat exchanger disposed in the communication chamber, and the right heat exchanger is disposed close to the right inlet of the impeller chamber.

[0310] Further optionally, the left heat exchanger includes an A1 heat exchange section and a B1 heat exchange section which are arranged opposite to each other up and down; the A1 heat exchange section extends towards the upper air duct, and the B1 heat exchange section extends towards the lower air duct; and / or, the right heat exchanger includes an A2 heat exchange section and a B2 heat exchange section which are arranged opposite to each other up and down; the A2 heat exchange section extends towards the upper air duct, and the B2 heat exchange section extends towards the lower air duct;

[0311] When the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode, indoor air can enter the lower air duct through the lower air inlet, enter the communication chamber through the lower air return opening and the lower air guide duct, and a part of the air enters the impeller chamber through the B1 heat exchange section, the A1 heat exchange section and the left inlet of the impeller chamber; another part of the air enters the impeller chamber through the B2 heat exchange section, the A2 heat exchange section and the right inlet of the impeller chamber; the air in the impeller chamber is discharged through the upper air duct and the upper air outlet;

[0312] When the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode, indoor air can enter the upper air duct through the upper air outlet, enter the communication chamber through the upper air return opening and the upper air guide duct, and a part of the air enters the impeller chamber through the A1 heat exchange section, the B1 heat exchange section and the left inlet of the impeller chamber; another part of the air enters the impeller chamber through the A2 heat exchange section, the B2 heat exchange section and the right inlet of the impeller chamber; the air in the impeller chamber is discharged through the lower air duct and the lower air outlet.

[0313] Further optionally, the air duct assembly includes a volute, a volute cover, an upper ventilation housing and a lower ventilation housing, and the volute and the volute cover are cooperatively connected to form the upper main air duct, the impeller chamber and the lower main air duct; an impeller is rotatably disposed in the impeller chamber; when the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode, the rotation direction of the impeller is the same as that when the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode;

[0314] The upper air duct further includes an upper auxiliary air duct, and the lower air duct further includes a lower auxiliary air duct; both the upper ventilation housing and the lower ventilation housing are arranged inside the housing; the upper ventilation housing is arranged on the top of the upper main air duct and forms an upper auxiliary air duct, and the upper auxiliary air duct communicates the upper air inlet and the upper main air duct; the lower ventilation housing is arranged on the bottom of the lower main air duct and forms a lower auxiliary air duct, and the lower auxiliary air duct communicates the lower air inlet and the lower main air duct.

[0315] Further optionally, an upper air deflector is rotatably arranged at the upper air inlet, and the upper air deflector can open or close the upper inlet or adjust the air outlet direction of the upper air inlet; and / or,

[0316] A lower air deflector is rotatably arranged at the lower air inlet, and the lower air deflector can open or close the lower air inlet or adjust the air outlet direction of the lower air inlet.

[0317] Further optionally, air inlets are provided at the rear side and / or the left and right sides of the housing in the embodiment 21 of the indoor unit of the cabinet air conditioner of the present invention;

[0318] A body housing passage is defined between the outside of the air duct assembly and the housing, and an upper air duct, a blower air duct and a lower air duct which are vertically distributed and sequentially communicated are formed inside. The upper end of the upper air duct communicates with the upper air inlet, and the lower end of the lower air duct communicates with the lower air inlet;

[0319] A blower system is arranged in the blower air duct, and the blower system is provided with an air inlet communicating the body housing passage and the blower air duct;

[0320] A wind shielding structure includes an upper wind shielding structure and a lower wind shielding structure. The upper wind shielding structure is arranged in the upper air duct and is used for controlling the communication state between the upper air duct and the blower air duct. The lower wind shielding structure is arranged in the lower air duct and is used for controlling the communication state between the lower air duct and the blower air duct.

[0321] Further optionally, the upper wind shielding structure is rotatably arranged on the air duct wall of the upper air duct, and the lower wind shielding structure is rotatably arranged on the air duct wall of the lower air duct;

[0322] Wherein the rotatably arranged upper wind shielding structure is used for controlling the communication state between the upper air duct and the blower air duct, and the rotatably arranged lower wind shielding structure is used for controlling the communication state between the lower air duct and the blower air duct.

[0323] Further optionally, an upper groove is provided on the air duct wall of the upper air duct, and a lower groove is provided on the air duct wall of the lower air duct;

[0324] When the upper wind shielding structure is driven to rotate, it has a first upper working position and a second upper working position. When the lower wind shielding structure is driven to rotate, it has a first lower working position and a second lower working position;

[0325] When the upper wind deflector structure is in the first upper working position, the upper wind deflector structure shuts off the connection between the fan air duct and the upper air duct. When the upper wind deflector structure is in the second upper working position, the fan air duct is connected to the upper air duct;

[0326] When the lower wind deflector structure is in the first lower working position, the lower wind deflector structure shuts off the connection between the fan air duct and the lower air duct. When the lower wind deflector structure is in the second lower working position, the fan air duct is connected to the lower air duct;

[0327] When the upper wind deflector structure is in the second upper working position, the upper wind deflector structure is embedded in the upper groove, and the plate surface of the upper wind deflector structure is smoothly transitioned with the air duct surface of the upper air duct. When the lower wind deflector structure is in the second lower working position, the lower wind deflector structure is embedded in the lower groove, and the lower wind deflector structure is smoothly transitioned with the air duct surface of the lower air duct.

[0328] Further optionally, the cabinet air conditioner further includes:

[0329] A heat exchanger assembly, which is arranged in the body shell passage and is opposite to the air inlet of the fan system, and is used for heat exchange of the air flow before entering the fan system.

[0330] Further optionally, the heat exchanger assembly is a V-shaped heat exchanger with an opening facing the air inlet side of the fan system. The V-shaped heat exchanger includes a first heat exchange part extending obliquely downward from the upper end to the lower end, and a second heat exchange part extending obliquely upward from the lower end to the upper end;

[0331] An upper heat exchange area in a gradually shrinking form from top to bottom is defined between the first heat exchange part and the shell, and a lower heat exchange area in a gradually shrinking form from bottom to top is defined between the second heat exchange part and the shell;

[0332] Wherein the lower region of the upper heat exchange area is opposite to the air inlet of the fan system, and the upper region of the lower heat exchange area is opposite to the air inlet of the fan system.

[0333] Further optionally, the connection position of the first heat exchange part and the second heat exchange part is opposite to the axial center position of the fan system.

[0334] Further optionally, the air duct assembly includes opposite first air duct shells, second air duct shells, and a first side and a second side connected between the first air duct shell and the second air duct shell. The first air duct shell, the first side, the second air duct shell, and the second side together enclose the outer contour of the air duct assembly;

[0335] The fan system is a centrifugal fan system, one end in its axial direction faces the first air duct shell, the other end faces the second air duct shell, the first side faces the front side of the shell, the second side faces the rear side of the shell, and an air inlet is provided on the rear side of the shell.

[0336] Further optionally, the air duct assembly includes a main air duct assembly, an upper channel and a lower channel communicating with the upper and lower ends of the main air duct assembly respectively;

[0337] A part of the upper air duct is formed in the main air duct assembly, and another part is formed in the upper channel;

[0338] A part of the lower air duct is formed in the main air duct assembly, and another part is formed in the lower channel;

[0339] Wherein, the upper wind shielding structure is arranged on the air duct wall of the main air duct assembly where a part of the upper air duct is formed, and the lower wind shielding structure is arranged on the air duct wall of the main air duct assembly where a part of the lower air duct is formed.

[0340] Further optionally, the housing includes:

[0341] A front panel and a rear case that are butt-jointed and installed. A receiving space for installing the air duct assembly and the heat exchanger assembly is formed between the butt-jointed front panel and rear case;

[0342] The cabinet air conditioner further includes:

[0343] A base, on which the butt-jointed front panel and rear case are located;

[0344] Wherein, an upper air outlet with an upward opening is defined between the upper parts of the butt-jointed front panel and rear case, and a lower air outlet with a forward opening is defined between the lower part of the front panel and the upper part of the base.

[0345] Further optionally, the cabinet air conditioner includes a single upper air outlet cooling mode, a single lower air outlet heating mode, and a cooling / heating upper and lower air outlet mode;

[0346] When the cabinet air conditioner operates in the single upper air outlet cooling mode, control the upper wind shielding structure to rotate to the first working position to connect the fan air duct and the upper air duct, and control the lower wind shielding structure to rotate to the second working position to cut off the connection between the fan air duct and the lower air duct;

[0347] When the cabinet air conditioner operates in the single lower air outlet heating mode, control the upper wind shielding structure to rotate to the second working position to cut off the connection between the fan air duct and the upper air duct, and control the lower wind shielding structure to rotate to the first working position to connect the fan air duct and the lower air duct;

[0348] When the cabinet air conditioner operates in the cooling / heating upper and lower air outlet mode, control the upper wind shielding structure to rotate to the first working position to connect the fan air duct and the upper air duct, and control the lower wind shielding structure to rotate to the first working position to connect the fan air duct and the lower air duct.

[0349] Further optionally, the air inlet includes an upper air inlet and a lower air inlet that are distributed vertically. An upper on-off component is provided at the upper air inlet, and a lower on-off component is provided at the lower air inlet;

[0350] The cabinet air conditioner further includes:

[0351] A controller that can control the opening and closing of the upper air inlet and / or the lower air inlet according to the operating mode of the cabinet air conditioner.

[0352] Further optionally, when the cabinet air conditioner operates in the single-upward air outlet cooling mode, the upper on-off component controls the upper air inlet to close, and the lower on-off component controls the lower air inlet to open;

[0353] When the cabinet air conditioner operates in the single-downward air outlet heating mode, the upper on-off component controls the upper air inlet to open, and the lower on-off component controls the lower air inlet to close;

[0354] When the cabinet air conditioner operates in the cooling / heating upper and lower air outlet mode, the upper on-off component controls the upper air inlet to open, and the lower on-off component controls the lower air inlet to open.

[0355] Further optionally, an air inlet is formed on the rear side wall of the housing, and an air outlet is formed on the front side wall of the housing; an air duct is formed by connecting the upper air duct and the lower air duct, and the air duct connects the air inlet and the air outlet; the air outlet includes a first air outlet, and the first air outlet includes an upper air outlet area and a lower air outlet area that are arranged vertically; the first air outlet is the upper air outlet;

[0356] The cabinet air conditioner indoor unit further includes a blower, and the blower includes an upper blower and a lower blower that are arranged vertically in the air duct, and the upper blower corresponds to the upper air outlet area, and the lower blower corresponds to the lower air outlet area;

[0357] The upper blower is one of a cross-flow blower and a centrifugal blower, and the lower blower is the other of a cross-flow blower and a centrifugal blower.

[0358] Further optionally, the upper blower is a cross-flow blower, the lower blower is a centrifugal blower, and the axial directions of both the cross-flow blower and the centrifugal blower are along the vertical direction.

[0359] Further optionally, a plurality of air deflector plates are provided in both the upper air outlet area and the lower air outlet area, and the plurality of air deflector plates are sequentially spaced apart in the height direction of the air conditioner indoor unit; the plurality of air deflector plates can be controlled to swing up and down to guide the air outlet of the upper air outlet area and the lower air outlet area.

[0360] Further optionally, the upper blower is close to the upper air outlet area, and the lower blower is close to the lower air outlet area; the air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger is arranged in the air duct and close to the air inlet.

[0361] Further optionally, the air conditioner indoor unit is provided with a conventional air supply mode, a cooling air supply mode, and a heating air supply mode. When the air conditioner indoor unit operates in any one of the conventional air supply mode, the cooling air supply mode, and the heating air supply mode, both the upper fan and the lower fan are in an operating state;

[0362] When the air conditioner indoor unit is in the conventional air supply mode, the plate surface of the air deflector is parallel to the horizontal direction;

[0363] When the air conditioner indoor unit is in the cooling air supply mode, the plate surface of the air deflector is obliquely upward relative to the horizontal direction;

[0364] When the air conditioner indoor unit is in the heating air supply mode, the plate surface of the air deflector is obliquely downward relative to the horizontal direction.

[0365] Further optionally, when the air conditioner indoor unit is in the cooling air supply mode, the air deflector is in a swingable state and satisfies: 40° ≤ α1 ≤ 50°, 55° ≤ α2 ≤ 65°;

[0366] When the air conditioner indoor unit is in the heating air supply mode, the air deflector is in a swingable state and satisfies: 15° ≤ β1 ≤ 25°, 40° ≤ β2 ≤ 50°;

[0367] Wherein, α1 is the minimum upward inclination angle of the air deflector, α2 is the maximum upward inclination angle of the air deflector; β1 is the minimum downward inclination angle of the air deflector, and β2 is the maximum downward inclination angle of the air deflector.

[0368] Further optionally, the air outlet further includes a second air outlet, and the second air outlet is spaced apart in the height direction of the air conditioner indoor unit and the second air outlet is located below the first air outlet;

[0369] The upper fan is a cross-flow fan, and the axis of the cross-flow fan is along the up and down direction; the lower fan is a centrifugal fan, and the axis of the centrifugal fan is along the front and back direction; the centrifugal fan is formed with a centrifugal fan upper air outlet and a centrifugal fan lower air outlet which are oppositely arranged up and down, the centrifugal fan upper air outlet is communicated with the first air outlet through an upper air duct, and the centrifugal fan lower air outlet is communicated with the second air outlet through a lower air duct.

[0370] Further optionally, the centrifugal fan forms a blade cavity, and a centrifugal fan air inlet is formed in the axial direction of the blade cavity, and the centrifugal fan air inlet is communicated with the air duct;

[0371] The upper radial end of the impeller chamber forms the upper air outlet of the centrifugal fan. An upper baffle is movably arranged at the upper air outlet of the centrifugal fan, and the upper baffle can be controlled to open or close the upper air outlet of the centrifugal fan; the lower radial end of the impeller chamber forms the lower air outlet of the centrifugal fan. A lower baffle is movably arranged at the lower air outlet of the centrifugal fan, and the lower baffle can be controlled to open or close the lower air outlet of the centrifugal fan.

[0372] Further optionally, the indoor unit of the air conditioner is provided with a conventional air supply mode, a cooling air supply mode and a heating air supply mode. When the indoor unit of the air conditioner operates in any one of the conventional air supply mode, the cooling air supply mode and the heating air supply mode, both the upper fan and the lower fan are in an operating state;

[0373] When the indoor unit of the air conditioner is in the conventional air supply mode, both the upper air outlet of the centrifugal fan and the lower air outlet of the centrifugal fan are in an open state;

[0374] When the indoor unit of the air conditioner is in the cooling air supply mode, the upper air outlet of the centrifugal fan is in an open state and the lower air outlet of the centrifugal fan is in a closed state;

[0375] When the indoor unit of the air conditioner is in the heating air supply mode, the upper air outlet of the centrifugal fan is in a closed state and the lower air outlet of the centrifugal fan is in an open state.

[0376] Further optionally, the indoor unit of the cabinet air conditioner is a cylindrical cabinet machine.

[0377] Further optionally, an upper air outlet is formed at the upper part of the housing, and a lower air outlet is formed at the lower part of the housing; both the upper air outlet and the lower air outlet communicate with the interior;

[0378] The air duct assembly is arranged inside the housing and the air duct assembly further forms an impeller chamber. The upper air duct, the impeller chamber and the lower air duct are arranged in sequence from top to bottom. The impeller chamber includes an impeller chamber inlet, an impeller chamber upper outlet and an impeller chamber lower outlet; the upper air duct communicates the upper air outlet and the impeller chamber upper outlet, and an upper air return opening is formed on the side wall of the upper air duct; the lower air duct communicates the lower air outlet and the impeller chamber lower outlet, and a lower air return opening is formed on the side wall of the lower air duct;

[0379] A communication chamber is formed between the housing and the air duct assembly; the upper air return opening communicates the upper air duct and the communication chamber, and the lower air return opening communicates the lower air duct and the communication chamber; the impeller chamber inlet communicates the impeller chamber and the communication chamber; both the upper air return opening and the lower air return opening can be controlled to open or close; both the upper air duct and the impeller chamber upper outlet and the lower air duct and the impeller chamber lower outlet can be controlled to communicate or disconnect.

[0380] Further optionally, the housing includes a front housing side wall, a rear housing side wall, and a top housing wall. The front housing side wall and the rear housing side wall are arranged opposite to each other front and back. The lower side of the front housing side wall forms the lower air inlet. The top housing wall is disposed at the top of the front housing side wall and the rear housing side wall and connects the front housing side wall and the rear housing side wall. The front side of the top housing wall forms the upper air inlet.

[0381] The rear side of the top housing wall forms an upper air inlet, and the upper air inlet communicates with the communication cavity and the room; and / or, the lower side of the rear housing side wall forms a lower air inlet, and the lower air inlet communicates with the communication cavity and the room.

[0382] Further optionally, a first upper air blocking structure is movably disposed at the upper air return opening. The first upper air blocking structure can open the upper air return opening while disconnecting the upper air duct and the upper outlet of the air blade cavity, or close the upper air return opening while connecting the upper air duct and the upper outlet of the air blade cavity.

[0383] A first lower air blocking structure is movably disposed at the lower air return opening. The first lower air blocking structure can open the lower air return opening while disconnecting the lower air duct and the lower outlet of the air blade cavity, or close the lower air return opening while connecting the lower air duct and the lower outlet of the air blade cavity.

[0384] Further optionally, the air conditioner indoor unit is provided with a first upper air outlet mode, a first lower air outlet mode, and an upper and lower simultaneous air outlet mode.

[0385] The upper air blocking structure closes the upper air return opening while connecting the upper air duct and the upper outlet of the air blade cavity. The lower air blocking structure opens the lower air return opening while disconnecting the lower air duct and the lower outlet of the air blade cavity. The air conditioner indoor unit can operate in the first upper air outlet mode. A part of the air in the room can enter the lower air duct through the lower air inlet and enter the communication cavity through the lower air return opening. Another part of the air in the room enters the communication cavity through the lower air inlet and the upper air inlet. The air in the communication cavity enters the air blade cavity through the air blade cavity inlet, and then is discharged through the upper air duct and the upper air outlet.

[0386] The upper air blocking structure opens the upper air return opening while disconnecting the upper air duct and the upper outlet of the air blade cavity. The lower air blocking structure closes the lower air return opening while connecting the lower air duct and the lower outlet of the air blade cavity. The air conditioner indoor unit can operate in the first lower air outlet mode. A part of the air in the room enters the upper air duct through the upper air inlet and enters the communication cavity through the upper air return opening. Another part of the air in the room enters the communication cavity through the upper air inlet and the lower air inlet. The air in the communication cavity enters the air blade cavity through the air blade cavity inlet, and then is discharged through the lower air duct and the lower air inlet.

[0387] The upper wind deflector structure closes the upper air return opening while connecting the upper air duct and the upper outlet of the air impeller chamber. The lower wind deflector structure closes the lower air return opening while connecting the lower air duct and the lower outlet of the air impeller chamber. The indoor unit of the air conditioner can operate in the upper and lower simultaneous air outlet mode. The air in the room enters the connection chamber through the upper air inlet and the lower air inlet. The air in the connection chamber enters the air impeller chamber through the air impeller chamber inlet. A part of the air in the air impeller chamber is discharged through the upper air duct and the upper air outlet, and another part of the air in the air impeller chamber is discharged through the lower air duct and the lower air outlet.

[0388] Further optionally, a first upper wind deflector structure is movably arranged at the upper air return opening. The first upper wind deflector structure can open or close the upper air return opening. A second upper wind deflector structure is movably arranged between the upper air duct and the upper outlet of the air impeller chamber. The second upper wind deflector structure can connect or disconnect the upper air duct and the upper outlet of the air impeller chamber.

[0389] A first lower wind deflector structure is movably arranged at the lower air return opening. The first lower wind deflector structure can open or close the lower air return opening. A second lower wind deflector structure is movably arranged between the lower air duct and the lower outlet of the air impeller chamber. The second lower wind deflector structure can connect or disconnect the lower air duct and the lower outlet of the air impeller chamber.

[0390] Further optionally, the indoor unit of the air conditioner is provided with a second upper air outlet mode and a second lower air outlet mode.

[0391] When the first upper wind deflector structure closes the upper air return opening, the second upper wind deflector structure connects the upper air duct and the upper outlet of the air impeller chamber, the first lower wind deflector structure closes the lower air return opening, and the second lower wind deflector structure disconnects the lower air duct and the lower outlet of the air impeller chamber, the indoor unit of the air conditioner can operate in the second upper air outlet mode. The air in the room enters the connection chamber through the upper air inlet and the lower air inlet, then enters the air impeller chamber through the air impeller chamber inlet, and is then discharged through the upper air duct and the upper air outlet.

[0392] When the first upper wind deflector structure closes the upper air return opening, the second upper wind deflector structure disconnects the upper air duct and the upper outlet of the air impeller chamber, the first lower wind deflector structure closes the lower air return opening, and the second lower wind deflector structure connects the lower air duct and the lower outlet of the air impeller chamber, the indoor unit of the air conditioner can operate in the second lower air outlet mode. The air in the room enters the connection chamber through the upper air inlet and the lower air inlet, then enters the air impeller chamber through the air impeller chamber inlet, and is then discharged through the lower air duct and the lower air outlet.

[0393] Further optionally, a partition is provided between the upper air inlet and the upper air outlet. The partition includes a first diversion surface and a second diversion surface which are oppositely arranged. The first diversion surface is close to the upper air inlet and is used for enabling the air in the room to enter the communication cavity through the upper air inlet. The second diversion surface is close to the upper air outlet and is used for enabling the air in the upper air duct to be discharged into the room through the upper air outlet.

[0394] Further optionally, the housing further includes a left side wall of the housing, and the left side wall of the housing connects the front side wall of the housing and the rear side wall of the housing. The air impeller cavity inlet includes a left inlet of the air impeller cavity, and the left inlet of the air impeller cavity is close to the left side wall of the housing. The indoor air conditioner further includes an indoor heat exchanger, and the indoor heat exchanger includes a left heat exchanger disposed in the communication cavity, and the left heat exchanger is disposed between the left side wall of the housing and the left inlet of the air impeller cavity; and / or,

[0395] The housing further includes a right side wall of the housing, and the right side wall of the housing connects the front side wall of the housing and the rear side wall of the housing. The air impeller cavity inlet includes a right inlet of the air impeller cavity, and the right inlet of the air impeller cavity is close to the right side wall of the housing. The indoor air conditioner further includes an indoor heat exchanger, and the indoor heat exchanger includes a right heat exchanger disposed in the communication cavity, and the right heat exchanger is disposed between the right side wall of the housing and the right inlet of the air impeller cavity.

[0396] Further optionally, the left heat exchanger includes an A1 heat exchange section and a B1 heat exchange section. The A1 heat exchange section extends towards the upper air duct, and the B1 heat exchange section extends towards the lower air duct. The A1 heat exchange section is disposed above the B1 heat exchange section and satisfies: 90°≤ɑ≤180°; and / or,

[0397] The right heat exchanger includes an A2 heat exchange section and a B2 heat exchange section. The A2 heat exchange section extends towards the upper air duct, and the B2 heat exchange section extends towards the lower air duct. The A2 heat exchange section is disposed above the B2 heat exchange section and satisfies: 90°≤β≤180°;

[0398] Wherein, ɑ is the included angle between the heat exchange surface of the A1 heat exchange section and the heat exchange surface of the B1 heat exchange section, and β is the included angle between the heat exchange surface of the A2 heat exchange section and the heat exchange surface of the B2 heat exchange section.

[0399] Further optionally, an upper air deflector is rotatably disposed at the upper air outlet, and the upper air deflector can open or close the upper air outlet and adjust the flow area of the upper air outlet; and / or,

[0400] A lower air deflector is rotatably disposed at the lower air outlet, and the lower air deflector can open or close the lower air outlet and adjust the flow area of the lower air outlet.

[0401] In Embodiment 27 of the indoor unit of the cabinet air conditioner of the present invention, the housing includes a front shell on the user side and a rear shell disposed opposite to the front shell. The front shell is provided with an upper air inlet and a lower air inlet that are vertically and spaced apart. The rear shell is provided with an air inlet between the upper air inlet and the lower air inlet;

[0402] The air duct assembly includes an air duct housing. The air duct housing includes a main air duct formed with an air inlet end, a first auxiliary air duct that communicates with the main air duct and extends obliquely upward, and a second auxiliary air duct that extends obliquely downward. The first auxiliary air duct forms a first air outlet end that communicates with the upper air inlet at its extended end, and the second auxiliary air duct forms a second air outlet end that communicates with the lower air inlet at its extended end;

[0403] The fan assembly includes a main axial flow fan, a first auxiliary fan, and a second auxiliary fan. The main axial flow fan is disposed at the air inlet end of the main air duct, the first auxiliary fan is disposed at the first air outlet end of the first auxiliary air duct, and the second auxiliary fan is disposed at the second air outlet end of the second auxiliary air duct;

[0404] The wind blocking mechanism is disposed in the air duct housing, and the wind blocking mechanism has a first working position, a second working position, and a third working position;

[0405] Among them, the wind blocking mechanism is designed such that when the wind blocking mechanism is in the first working position, the wind blocking mechanism can connect the main air duct to both the first auxiliary air duct and the second auxiliary air duct. When the wind blocking mechanism is in the second working position, the wind blocking mechanism can connect the main air duct to the first auxiliary air duct while shutting off the connection between the main air duct and the second auxiliary air duct. When the wind blocking mechanism is in the third working position, the wind blocking mechanism can connect the main air duct to the second auxiliary air duct while shutting off the connection between the main air duct and the first auxiliary air duct

[0406] Further optionally, a pair of air ducts includes a first tapered air duct section that communicates with the air outlet end of the main air duct and extends obliquely upward, and a first straight air duct section that communicates with the curved surface of the first tapered air duct section and extends horizontally;

[0407] The second auxiliary air duct includes a second tapered air duct section that communicates with the air outlet end of the main air duct and extends obliquely downward, and a second straight air duct section that communicates with the curved surface of the second tapered air duct section and extends horizontally;

[0408] Among them, the first auxiliary fan is disposed in the first straight air duct section, and the second auxiliary fan is disposed in the second straight air duct section.

[0409] Further optionally, the first tapered air duct section includes a first air duct wall A and a first air duct wall B that are opposite and extend obliquely upward;

[0410] The second tapered air duct section includes a second air duct wall A and a second air duct wall B that are opposite and extend obliquely downward;

[0411] Among them, the first air duct wall B and the second air duct wall B are connected, and a wind blocking mechanism is rotatably disposed at the connection position.

[0412] Further optionally, the wind deflector mechanism includes a diversion wind deflector rotatably disposed at an adjacent position between the first air duct wall B and the second air duct wall B;

[0413] The diversion wind deflector includes a rotating end rotatably disposed at an adjacent position between the first air duct wall B and the second air duct wall B, and a free end opposite to the rotating end, wherein;

[0414] When the diversion wind deflector is in the first working position, the free end of the diversion wind deflector faces the air inlet end of the main air duct and is located at the middle position of the main air duct;

[0415] When the diversion wind deflector is in the second working position, the free end of the diversion wind deflector abuts against the connection position between the main air duct and the first auxiliary air duct to cut off the communication between the main air duct and the first auxiliary air duct;

[0416] When the diversion wind deflector is in the third working position, the free end of the diversion wind deflector abuts against the connection position between the main air duct and the second auxiliary air duct to cut off the communication between the main air duct and the second auxiliary air duct.

[0417] Further optionally, the diversion wind deflector includes an opposite first plate surface and a second plate surface, and a plurality of pressure relief holes penetrating through the first plate surface and the second plate surface are provided on the diversion wind deflector.

[0418] Further optionally, the cabinet air conditioner further includes a heat exchanger assembly disposed at the air inlet end position of the main air duct for heat-exchanging the air flowing into the main air duct.

[0419] Further optionally, the heat exchanger assembly and the main axial flow fan are sequentially arranged in the air outlet direction of the main air duct.

[0420] Further optionally, the power of the main axial flow fan is greater than the power of the first auxiliary fan, and the power of the first auxiliary fan is greater than or equal to the power of the second auxiliary fan.

[0421] Further optionally, the cabinet air conditioner further includes a wind guiding component;

[0422] The wind guiding component includes an upper wind guiding component disposed at the upper air outlet, and a lower wind guiding component disposed at the lower air outlet;

[0423] The upper wind guiding component includes an upper grille, the upper grille includes a first upper grille bar group and a second upper grille bar group, and the first upper grille bar group and the second upper grille bar group are arranged up and down; the first upper grille bar group is designed to provide horizontal air outlet, and the second upper grille bar group is designed to provide obliquely upward air outlet;

[0424] The lower wind guiding component includes a lower grille, the lower grille is provided with a lower grille bar group, and the lower grille bar group can be driven to rotate and can form air supply in different dimensions of up, down, left, and right during the rotation process.

[0425] Further optionally, the first upper grille bar group includes a plurality of first upper grille bars arranged from bottom to top, and the plurality of first upper grille bars are all parallel to the central axis of the upper grille. The second upper grille bar group includes a plurality of second upper grille bars arranged from top to bottom;

[0426] Among them, the angle between two adjacent second upper grille bars in the plurality of second upper grille bars arranged from top to bottom and the central axis of the upper grille is designed as follows: a first included angle is formed between the lower second upper grille bar and the central axis of the upper grille, and a second included angle is formed between the upper second upper grille bar and the central axis of the upper grille, where the first included angle is greater than the second included angle.

[0427] Further optionally, the lower grille bar group includes a plurality of lower grille bars. The plurality of lower grille bars can be driven to rotate synchronously around the axis of the lower grille, and an air flow channel for air flow to pass through is formed between two adjacent lower grille bars, where the air outlet direction of the air flow channel is not parallel to the rotation axis of the lower grille.

[0428] Further optionally, the plurality of lower grille bars are arranged in parallel, and an angle a is formed between the grille plane of each lower grille bar and the rotation axis of the lower grille, where 0° < a < 90°.

[0429] Further optionally, the lower grille further includes:

[0430] An outer ring of the lower grille, and a plurality of lower grille bars are fixedly arranged in the outer ring of the lower grille. The outer ring of the lower grille and the plurality of lower grille bars can be driven to rotate synchronously around the axis of the outer ring of the grille;

[0431] A connecting member, which is fixedly connected to the lower grille bar, and a motor shaft hole is provided at the center position of the outer ring of the lower grille on the connecting member;

[0432] A motor, and the output shaft end of the motor is axially connected to the motor shaft hole to directly drive the plurality of lower grille bars to rotate synchronously through the motor.

[0433] Further optionally, an upper air inlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing; an air duct is formed by connecting the upper air duct and the lower air duct;

[0434] The cabinet-type air conditioner indoor unit further includes a reversing fan. The reversing fan includes a fan housing, and the fan housing is rotatably arranged in the air duct; a blade cavity communicating with the air duct is formed in the fan housing, and a blade is rotatably arranged in the blade cavity; the fan housing has a first working position and a second working position;

[0435] When the fan housing is in the first working position, the blade rotates, and the indoor air near the upper air inlet can enter the air duct through the upper air inlet and then be discharged through the lower air outlet;

[0436] When the blower housing is in the second working position, the blower blades are rotated, and indoor air near the lower air outlet can enter the air duct through the lower air outlet and then be discharged through the upper air outlet.

[0437] Further optionally, the floor-standing air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger is disposed in the air duct;

[0438] There is one reversing blower, and the reversing blower is disposed above or below the indoor heat exchanger.

[0439] Further optionally, the floor-standing air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger is disposed in the air duct;

[0440] There are two reversing blowers including a first reversing blower and a second reversing blower. The first reversing blower is disposed above the indoor heat exchanger, and the second reversing blower is disposed below the indoor heat exchanger; or,

[0441] The first reversing blower and the second reversing blower are arranged up and down and are both located above the indoor heat exchanger; or,

[0442] The first reversing blower and the second reversing blower are arranged up and down and are both located below the indoor heat exchanger.

[0443] Further optionally, the floor-standing air conditioner indoor unit is provided with a heating mode and a cooling mode;

[0444] When the floor-standing air conditioner indoor unit is in the heating mode, the first reversing blower and the second reversing blower are both in the first working position, and the blower blades of the first reversing blower and / or the second reversing blower are rotated;

[0445] When the floor-standing air conditioner indoor unit is in the cooling mode, the first reversing blower and the second reversing blower are both in the second working position, and the blower blades of the first reversing blower and / or the second reversing blower are rotated.

[0446] Further optionally, the floor-standing air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger is disposed in the air duct;

[0447] There are three reversing blowers including a first reversing blower, a second reversing blower and a third reversing blower; the first reversing blower is disposed at the upper air outlet, the second reversing blower is disposed at the lower air outlet, and the third reversing blower is disposed above or below the indoor heat exchanger; or,

[0448] There are four reversing fans, including a first reversing fan, a second reversing fan, a third reversing fan, and a fourth reversing fan; the first reversing fan is arranged at the upper air inlet, the second reversing fan is arranged at the lower air outlet, the third reversing fan is arranged above the indoor heat exchanger, and the fourth reversing fan is arranged below the indoor heat exchanger.

[0449] Further optionally, the reversing fan is an axial flow fan or a mixed flow fan.

[0450] Further optionally, the rotatable angle range of the fan housing is 0° to 360°.

[0451] Further optionally, the indoor heat exchanger includes a first heat exchange section and a second heat exchange section, and the first heat exchange section and the second heat exchange section are arranged in a folded line structure.

[0452] Further optionally, one axial end of the blade cavity forms a blade cavity inlet, and an inlet grille is arranged at the blade cavity inlet; the other axial end of the blade cavity forms a blade cavity outlet, and an outlet grille is arranged at the blade cavity outlet;

[0453] The reversing fan further includes a fan bracket, the fan bracket is arranged on the circumferential outer side of the fan housing and is connected to the fan housing; a rotating shaft is arranged on the fan bracket, and the rotating shaft is rotatably arranged in the air duct.

[0454] In the indoor unit of the cabinet air conditioner according to Embodiment 30 of the present invention, a wind control structure is provided at the upper part of the indoor unit, and the wind control structure includes a wind deflector assembly;

[0455] The wind deflector assembly includes:

[0456] A first wind deflector, the first wind deflector is rotatably arranged at the upper air inlet for opening or closing the upper air inlet, and the first wind deflector has a first windward plate surface;

[0457] A second wind deflector, the second wind deflector is rotatably arranged on the first windward plate surface of the first wind deflector, and the second wind deflector has a second windward plate surface;

[0458] When the upper air inlet is opened through the first wind deflector, the second wind deflector can be controlled to rotate so as to guide the air flow flowing out from the upper air inlet through the second windward plate surface.

[0459] Further optionally, the second wind deflector further has a second leeward plate surface opposite to the second windward plate surface, and the second leeward plate surface is arranged parallel to the second windward plate surface;

[0460] When the second wind deflector is driven to rotate, the second leeward plate surface can be rotated to be parallel to the first windward plate surface of the first wind deflector.

[0461] Further optionally, the first air deflector has opposite first and second ends;

[0462] The first air deflector is rotationally engaged with the air outlet at the first end position, and the second air deflector is rotationally engaged with the first air deflector at the second end position.

[0463] Further optionally, side air deflectors are symmetrically convexly provided on the first windward surface of the first air deflector, and a diversion air duct is formed between the symmetrically arranged side air deflectors and the first windward surface of the first air deflector. The diversion air duct is used to converge the air flow blown out from the air outlet.

[0464] Further optionally, the side air deflector has a first side close to the rotational position of the first air deflector and a second side opposite to the first side;

[0465] Wherein the protruding height of the first side is greater than that of the second side to define a tapered diversion air duct.

[0466] Further optionally, the first air deflector further has a third end and a fourth end that are oppositely arranged between the first end and the second end, and the first end, the third end, the second end, and the fourth end are sequentially connected to form the outer peripheral contour of the first air deflector;

[0467] One of the side air deflectors is arranged close to the third end of the first air deflector, and the other side air deflector is arranged close to the fourth end of the first air deflector.

[0468] Further optionally, the air control structure further includes a driving assembly:

[0469] The driving assembly includes a first driving assembly and a second driving assembly. The first driving assembly is used to drive the first air deflector to rotate, and the second driving assembly is used to drive the second air deflector to rotate;

[0470] The first driving assembly includes a driving box installed at the air outlet, a first motor and a gear transmission structure provided on the driving box. The first motor drives the gear transmission structure to rotate, and the gear transmission structure drives the first air deflector to rotate. When the gear transmission structure is driven to rotate, it can cooperate with the slide rail on the air supply device, and the driving box can cover the slide rail on the air supply device;

[0471] The second driving assembly includes a second motor installed on the first air deflector, and the second motor drives the second air deflector to rotate.

[0472] Further optionally, there are a first ventilation opening and a second ventilation opening, and the above air control structure is provided at the first ventilation opening;

[0473] The first ventilation opening can be controlled for air intake or air outlet, and the second ventilation opening is used for air intake;

[0474] The first vent has a second end disposed close to the second vent, and a first air deflector in the air control structure is rotatably disposed at the second end of the first vent.

[0475] In the above technical solution, the upper air inlet includes a first vent and a second vent, and the lower air outlet includes a third vent and a fourth vent;

[0476] A body housing passage is defined between the outside of the air duct assembly and the housing, and an upper air duct and a lower air duct are formed inside and arranged vertically and separated;

[0477] An upper channel and a lower channel, one end of the upper channel communicates with the upper air duct, the other end communicates with the first vent, one end of the lower channel communicates with the lower air duct, the other end communicates with the third vent, the top position of the body housing passage communicates with the second vent, and the bottom position communicates with the fourth vent;

[0478] An upper centrifugal fan system and a lower centrifugal fan system that work independently of each other, the upper centrifugal fan system is disposed in the upper air duct, the lower centrifugal fan system is disposed in the lower air duct, and the middle position of the body housing passage communicates with the upper centrifugal fan system and the lower centrifugal fan system;

[0479] An upper air return opening communicating with the body housing passage and the upper air duct is formed on the side wall of the upper air duct, and an upper baffle is rotatably disposed at the position of the upper air return opening. The upper baffle is used to open the upper air return opening while closing the lower end of the upper air duct or close the upper air return opening while opening the lower end of the upper air duct. A lower air return opening communicating with the body housing passage and the lower air duct is formed on the side wall of the lower air duct, and a lower baffle is rotatably disposed at the position of the lower air return opening. The lower baffle is used to open the lower air return opening while closing the upper end of the lower air duct or close the lower air return opening while opening the upper end of the lower air duct.

[0480] Further optionally, the air conditioner has a single upper air outlet cooling mode and a single lower air outlet heating mode;

[0481] When the air conditioner operates in the single upper air outlet cooling mode, the upper baffle is controlled to rotate to close the upper air return opening, the lower baffle is controlled to rotate to open the lower air return opening, the upper centrifugal fan system is started, the lower centrifugal fan system is closed, the first air deflector is controlled to rotate to open the first vent, and the second air deflector is controlled to rotate reciprocally;

[0482] When the air conditioner operates in the single lower air outlet heating mode, the upper baffle is controlled to rotate to open the upper air return opening, the lower baffle is controlled to rotate to close the lower air return opening, the upper centrifugal fan system is closed, the lower centrifugal fan system is turned on, the first air deflector is controlled to rotate to open the first vent, and the second air deflector is driven to rotate to be parallel to the first air deflector.

[0483] Further optionally, the cabinet air conditioner further includes:

[0484] The heat exchanger assembly is disposed in the channel of the fuselage housing and is used for heat exchange with the air flowing through the channel of the fuselage housing.

[0485] Further optionally, the housing includes:

[0486] An air inlet component, the front and top of the air inlet component are open, and a receiving space is formed inside;

[0487] A panel component, the panel component is installed at the open position in the front of the air inlet component;

[0488] A top cover component, the top cover component is installed at the open position on the top of the air inlet component;

[0489] A base component, the base component is installed at the bottom of the air inlet component;

[0490] Wherein a first ventilation opening and a second ventilation opening with upward opening directions are defined between the air inlet component, the top cover component and the panel component, and a third air outlet with a forward opening direction and a fourth air outlet with a downward opening direction are defined between the air inlet component, the base component and the panel component.

[0491] Further optionally, in Embodiment 31 of the indoor unit of the cabinet air conditioner of the present invention, an air control assembly is provided at the upper part of the indoor unit, and the air control assembly includes a frame body and a wind deflector assembly;

[0492] The frame body encloses the upper air outlet, and the frame body has a first frame side and a second frame side provided on opposite sides of the upper air outlet;

[0493] The wind deflector assembly includes a first wind deflector and a second wind deflector oppositely arranged on the first frame side and the second frame side;

[0494] The first wind deflector is rotatably arranged on the first frame side;

[0495] The second wind deflector is rotatably arranged on the second frame side;

[0496] The first wind deflector and the second wind deflector can be controlled to rotate clockwise or counterclockwise around their respective axes;

[0497] The first wind deflector and the second wind deflector can be controlled to rotate in the same direction and in the opposite direction;

[0498] Wherein the upper air outlet is the first ventilation opening provided at the top of the indoor unit.

[0499] Further optionally, the first wind deflector and the second wind deflector are designed such that the first wind deflector can cover the entire first ventilation opening, and the second wind deflector can cover a part of the first ventilation opening.

[0500] Further optionally, the first air deflector and the second air deflector are designed such that: the rotation axis L1 of the first air deflector and the rotation axis L2 of the second air deflector are parallel; the length of the first air deflector in the direction of its rotation axis L1 is equal to the length of the second air deflector in the direction of its rotation axis L2; the width of the first air deflector in the direction perpendicular to its rotation axis L1 is greater than the width of the second air deflector perpendicular to its rotation axis L2.

[0501] Further optionally, the first air deflector has a first plate surface A on the side facing the air vent, and the first plate surface A is configured as an arc surface. When the first plate surface A covers the air vent, the concave surface of the arc surface of the first plate surface A faces the air vent.

[0502] In Embodiment 31 of the cabinet-type air conditioner indoor unit of the present invention, a wind control assembly is further provided. The wind control assembly includes a frame body and a wind deflector assembly.

[0503] The frame body defines two first air vents and a second air vent arranged side by side, and the first air vent and the second air vent serve as upper air inlets.

[0504] The frame body has a first frame edge separating the first air vent and the second air vent, and second frame edges and third frame edges oppositely arranged on both sides of the first frame edge.

[0505] The first air vent is formed between the first frame edge and the second frame edge.

[0506] The second air vent is formed between the first frame edge and the third frame edge.

[0507] The wind deflector assembly includes a first air deflector and a second air deflector. The first air deflector is rotatably arranged on the first frame edge, and the second air deflector is rotatably arranged on the second frame edge.

[0508] The first air deflector has opposite first plate surfaces A and B. Among them, the first plate surface A can cover the first air vent by rotating the first air deflector clockwise, and the first plate surface B can cover the second air vent by rotating the first air deflector counterclockwise.

[0509] The first air deflector and the second air deflector can be controlled to rotate clockwise or counterclockwise around their respective axes.

[0510] The first air deflector and the second air deflector can be controlled to rotate in the same direction and in opposite directions.

[0511] Further optionally, the first air deflector and the second air deflector are designed such that: the first air deflector can cover the first air vent and the second air vent, and the second air deflector can cover part of the second air vent.

[0512] Further optionally, the first air deflector and the second air deflector are designed such that: the rotation axis L1 of the first air deflector and the rotation axis L2 of the second air deflector are parallel; the length of the first air deflector in the direction of its rotation axis L1 is equal to the length of the second air deflector in the direction of its rotation axis L2; and the width of the first air deflector in the direction perpendicular to its rotation axis L1 is greater than the width of the second air deflector perpendicular to its rotation axis L2.

[0513] Further optionally, the first air deflector has a first plate surface A on the side facing the first air vent and a first plate surface B on the side facing away from the first air vent, where:

[0514] The first plate surface A is configured as an arc surface. When the first plate surface A covers the first air vent, the concave surface of the arc surface of the first plate surface A faces the first air vent;

[0515] The first plate surface B is configured as a straight surface. When the first plate surface B covers the second air vent, the straight surface of the first plate surface B faces the second air vent.

[0516] Further optionally, the first air deflector forms a convex platform structure extending obliquely upward on the side of the first plate surface B that is adapted to the structure of the second air vent;

[0517] The convex platform structure has a cut groove at the edge of the first plate surface B, and the cut groove has an adapted structure that can be hermetically fitted with the third frame edge.

[0518] Further optionally, the air flow resistance control member is used for an up-and-down reversible air duct structure, and the up-and-down reversible air duct structure includes an air inlet duct and a reversible air inlet and outlet duct;

[0519] Wherein the second air vent is used to communicate with the air inlet duct, and the first air vent is used to communicate with the reversible air inlet and outlet duct.

[0520] Further optionally, the bottom of the body is provided with a third air vent and a fourth air vent that constitute a lower air outlet;

[0521] An air duct assembly is provided inside the body. A body housing passage is defined between the outside of the air duct assembly and the body, and an upper air duct and a lower air duct that are arranged up and down and separated are formed inside;

[0522] An upper channel and a lower channel, one end of the upper channel communicates with the upper air duct, the other end communicates with the first air vent, one end of the lower channel communicates with the lower air duct, the other end communicates with the third air vent, the top position of the body housing passage communicates with the second air vent, and the bottom position communicates with the fourth air vent;

[0523] An upper centrifugal fan system and a lower centrifugal fan system that work independently of each other, the upper centrifugal fan system is provided in the upper air duct, the lower centrifugal fan system is provided in the lower air duct, and the middle position of the body housing passage communicates with the upper centrifugal fan system and the lower centrifugal fan system;

[0524] An upper air return opening communicating with the fuselage shell passage and the upper air duct is provided on the side wall of the upper air duct. An upper baffle is rotatably arranged at the position of the upper air return opening. The upper baffle is used to close the lower end of the upper air duct while opening the upper air return opening, or to open the lower end of the upper air duct while closing the upper air return opening. A lower air return opening communicating with the fuselage shell passage and the lower air duct is provided on the side wall of the lower air duct. A lower baffle is rotatably arranged at the position of the lower air return opening. The lower baffle is used to close the upper end of the lower air duct while opening the lower air return opening, or to open the upper end of the lower air duct while closing the lower air return opening.

[0525] Further optionally, the air conditioner has a single upper air outlet cooling mode and a single lower air outlet heating mode;

[0526] When the air conditioner operates in the single upper air outlet cooling mode, the upper baffle is controlled to rotate to close the upper air return opening, the lower baffle is controlled to rotate to open the lower air return opening, the upper centrifugal fan system is started, the lower centrifugal fan system is closed, and the first air deflector and the second air deflector are controlled to rotate to open the first ventilation opening;

[0527] When the air conditioner operates in the single lower air outlet heating mode, the upper baffle is controlled to rotate to open the upper air return opening, the lower baffle is controlled to rotate to close the lower air return opening, the upper centrifugal fan system is closed, the lower centrifugal fan system is turned on, and the first air deflector and the second air deflector are controlled to rotate to open the first ventilation opening.

[0528] Further optionally, the cabinet air conditioner further includes:

[0529] A temperature sensor for monitoring the ambient temperature when the air conditioner is operating;

[0530] A controller for controlling the air guiding positions of the first air deflector and the second air deflector according to the received ambient temperature value and the current operating mode of the air conditioner.

[0531] Further optionally, the cabinet air conditioner further includes:

[0532] A heat exchanger assembly provided in the fuselage shell passage for exchanging heat with the air flowing through the fuselage shell passage;

[0533] When the air conditioner operates in the single upper air outlet cooling mode and the ambient temperature is greater than or equal to the first set temperature, control the first air deflector to rotate to the vertical position, control the second air deflector to rotate to an acute angle position with the horizontal plane. At this time, the air flowing in from the third ventilation opening enters the fuselage shell passage through the lower air return opening, exchanges heat with the heat exchanger assembly and then enters the upper centrifugal fan system. The air flowing in from the second ventilation opening and the fourth ventilation opening both enter the fuselage shell passage, exchange heat with the heat exchanger assembly and then enter the upper centrifugal fan system;

[0534] When the air conditioner is operating in the upper-air outlet cooling mode and the ambient temperature is less than the first set temperature, control the first air deflector to rotate to the position of closing the second ventilation opening, and control the second air deflector to rotate to a position forming an obtuse angle with the horizontal plane. At this time, the air flow entering from the third ventilation opening enters the fuselage housing channel through the lower return air opening, exchanges heat with the heat exchanger assembly, and then enters the upper centrifugal fan system. The air flow entering from the fourth ventilation opening enters the fuselage housing channel, exchanges heat with the heat exchanger assembly, and then enters the upper centrifugal fan system;

[0535] When the air conditioner is operating in the lower-air outlet heating mode and the ambient temperature is less than or equal to the second set temperature, control the first air deflector to rotate to the vertical position, and control the second air deflector to rotate to a position forming a right angle with the horizontal plane. At this time, the air flow entering from the first ventilation opening enters the fuselage housing channel through the upper return air opening, exchanges heat with the heat exchanger assembly, and then enters the lower centrifugal fan system. The air flows entering from the second ventilation opening and the fourth ventilation opening both enter the fuselage housing channel, exchange heat with the heat exchanger assembly, and then enter the lower centrifugal fan system;

[0536] When the air conditioner is operating in the lower-air outlet heating mode and the ambient temperature is greater than the second set temperature, control the first air deflector to rotate to the position of closing the second ventilation opening, and control the second air deflector to rotate to a position forming an acute angle with the horizontal plane. At this time, the air flow entering from the first ventilation opening enters the fuselage housing channel through the upper return air opening, exchanges heat with the heat exchanger assembly, and then enters the lower centrifugal fan system. The air flow entering from the fourth ventilation opening enters the fuselage housing channel, exchanges heat with the heat exchanger assembly, and then enters the lower centrifugal fan system.

[0537] Further optionally, the cabinet air conditioner further includes:

[0538] The body includes:

[0539] An air inlet component, the front and top of the air inlet component are open, and an accommodation space is formed inside;

[0540] A panel component, which is installed at the open position in the front of the air inlet component;

[0541] A top cover component, which is installed at the open position on the top of the air inlet component;

[0542] A base component, which is installed at the bottom of the air inlet component;

[0543] Among them, a wind frame with a first ventilation opening and a second ventilation opening with upward openings is defined between the air inlet component, the top cover component and the panel component, and a third ventilation opening with an opening direction facing forward and a fourth ventilation opening with an opening direction facing downward are defined between the air inlet component, the base component and the panel component.

[0544] Further optionally, a wind control assembly is provided at the top of the laundry treatment device in Embodiment 32 of the present invention. The wind control assembly includes a frame body and a wind guiding plate assembly. The frame body encloses an upper air outlet, and the upper air outlet includes a first ventilation opening and a second ventilation opening arranged side by side;

[0545] The wind guiding plate assembly includes a first wind guiding plate and a first driving mechanism arranged on the frame body and used for driving the first wind guiding plate to move. The first wind guiding plate has a closed state in which the second ventilation opening is closed when driven by the first driving mechanism, and an open state in which it is above the first ventilation opening and the second ventilation opening is opened;

[0546] The wind guiding plate assembly further includes a second wind guiding plate rotatably arranged between the first ventilation opening and the second ventilation opening and a second driving mechanism arranged on the frame body and used for driving the second wind guiding plate to rotate. The second wind guiding plate has a closed state in which the first ventilation opening is closed when driven by the second driving mechanism and an open state in which the first ventilation opening is opened;

[0547] When the first wind guiding plate and the second wind guiding plate are both in the open state, the first wind guiding plate and the second wind guiding plate form a wind guiding surface for the air flow out of the first ventilation opening.

[0548] Further optionally, the first wind guiding plate has a first plate surface facing the first ventilation opening when the second ventilation opening is opened, and the second wind guiding plate has a second plate surface facing the first ventilation opening when the first ventilation opening is closed;

[0549] When the first wind guiding plate and the second wind guiding plate are both in the open state, the first plate surface of the first wind guiding plate and the second plate surface of the second wind guiding plate form a wind guiding surface for the air flow out of the first ventilation opening.

[0550] Further optionally, the second wind guiding plate has a rotating end and a free end opposite to the rotating end;

[0551] When the first plate surface of the first wind guiding plate and the second plate surface of the second wind guiding plate form a wind guiding surface for the air flow out of the first ventilation opening, the second wind guiding plate is arranged below the first wind guiding plate.

[0552] Further optionally, a convex eaves is protruded from one end of the second wind guiding plate away from the rotation axis of the second wind guiding plate toward the second plate surface side. The convex eaves has a first mating surface that mates with the first plate surface of the first wind guiding plate when the second wind guiding plate and the first wind guiding plate form a wind guiding surface;

[0553] The first mating surface is designed to be parallel to the first plate surface of the first wind guiding plate when the second wind guiding plate rotates to the vertical position;

[0554] The projecting eaves further include a drainage surface opposite to the first mating surface, and an included angle a of 0°-90° is formed between the drainage surface and the second plate surface of the second air deflector for guiding the air flow.

[0555] Further optionally, the second plate surface of the second air deflector is configured as an arc surface;

[0556] Wherein the arc-shaped second plate surface is concave towards the first ventilation opening when the second air deflector closes the first ventilation opening;

[0557] Preferably, the second air deflector is configured as an arc-shaped plate.

[0558] Further optionally, the first ventilation opening has a first frame edge and a second frame edge disposed on opposite sides of the first ventilation opening, and the first air deflector has a first edge opposite to the first frame edge of the first ventilation opening and a second edge opposite to the second frame edge of the first ventilation opening when it is above the first ventilation opening;

[0559] The first driving mechanism includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the position of the first frame edge of the frame body, and the other end is hinged to the position of the first edge of the first air deflector. One end of the second connecting rod is hinged to the position of the second frame edge, and the other end is hinged to the position of the second edge of the first air deflector;

[0560] The first driving mechanism further includes a first driving motor, and the first driving motor can drive the first connecting rod and the second connecting rod to rotate synchronously clockwise or counterclockwise.

[0561] Further optionally, there are two first connecting rods. One ends of the two first connecting rods are hinged to the position of the first frame edge of the frame body at an interval, and the other ends are hinged to the position of the first edge of the first air deflector at an interval;

[0562] There are two second connecting rods. One ends of the two second connecting rods are hinged to the position of the second frame edge of the frame body at an interval, and the other ends are hinged to the position of the second edge of the first air deflector at an interval;

[0563] The first driving mechanism further includes a first driving gear disposed between the two first connecting rods and / or between the two second connecting rods. The input end of the first driving gear is connected to the output shaft end of the first driving motor, and the output end is in gear transmission cooperation with the two first connecting rods and / or the two second connecting rods.

[0564] Further optionally, the first driving mechanism further includes a first rotating shaft coaxial with the first driving gear, and a transmission gear is fixedly sleeved on the first rotating shaft;

[0565] The second driving mechanism includes a second rotating shaft rotatably disposed between the first ventilation opening and the second ventilation opening. The rotating end of the second air deflector is fixedly sleeved on the second rotating shaft, and a second driving gear is further provided on the second rotating shaft;

[0566] The transmission gear on the first rotating shaft is meshed with the second driving gear on the second rotating shaft, so as to drive the second air guide plate to move in linkage with the first air guide plate when the first driving motor drives the first air guide plate to move.

[0567] Further optionally, the second driving mechanism includes a second driving motor disposed between the first vent and the second vent, the output end of the second driving motor is connected to a rotating shaft, and the rotating end of the second air guide plate is fixedly sleeved on the rotating shaft.

[0568] Further optionally, a downwind port is provided at the bottom of the shell, and the downwind port includes a third vent and a fourth vent;

[0569] The air duct assembly inside the shell defines a fuselage shell channel between the outside and the shell, and an upper air duct and a lower air duct are formed inside the shell and are arranged and separated from each other up and down;

[0570] An upper channel and a lower channel, one end of the upper channel is connected to the upper air duct and the other end is connected to the first vent, one end of the lower channel is connected to the lower air duct and the other end is connected to the third vent, the top position of the fuselage shell channel is connected to the second vent and the bottom position is connected to the fourth vent;

[0571] An upper fan system and a lower fan system that work independently of each other, the upper fan system is arranged in the upper air duct, and the lower fan system is arranged in the lower air duct, and the middle position of the fuselage shell channel is connected to the upper fan system and the lower fan system;

[0572] An upper return air outlet connecting the fuselage shell channel and the upper air duct is provided on the side wall of the upper air duct, and an upper wind shield structure is rotatably provided at the upper return air outlet. The upper wind shield structure is used to close the lower end of the upper air duct while opening the upper return air outlet or to open the lower end of the upper air duct while closing the upper return air outlet. A lower return air outlet connecting the fuselage shell channel and the lower air duct is provided on the side wall of the lower air duct, and a lower wind shield structure is rotatably provided at the lower return air outlet. The lower wind shield structure is used to close the upper end of the lower air duct while opening the lower return air outlet or to open the upper end of the lower air duct while closing the lower return air outlet.

[0573] Further optionally, the air conditioner has a single upper air outlet cooling mode, a single lower air outlet heating mode, and a upper and lower air outlet cooling / heating mode;

[0574] When the air conditioner operates in a single upper air outlet cooling mode, the upper wind shield structure is controlled to rotate to close the upper return air outlet, the lower wind shield structure is controlled to rotate to open the lower return air outlet, the upper fan system is started, the lower fan system is turned off, the first air guide plate is driven to move above the first vent, and the second air guide plate is driven to rotate to a vertical position;

[0575] When the air conditioner operates in the heating mode with downward air outlet, the upper air deflector structure is controlled to rotate to open the upper air return opening, the lower air deflector structure is controlled to rotate to close the lower air return opening, the upper fan system is turned off, the lower fan system is turned on, the first air guide plate is driven to move above the first air vent, and the second air guide plate is driven to rotate to the vertical position;

[0576] When the air conditioner operates in the cooling / heating mode with simultaneous upward and downward air outlets, the upper air deflector structure is controlled to rotate to close the upper air return opening, the lower air deflector structure is controlled to rotate to close the lower air return opening, both the upper fan system and the lower fan system are started, the first air guide plate is driven to move above the first air vent, and the second air guide plate is driven to rotate to the vertical position.

[0577] Further optionally, the cabinet air conditioner further includes:

[0578] A heat exchanger assembly, which is arranged in the body housing passage and is used for exchanging heat with the air flowing through the body housing passage.

[0579] Further optionally, the housing includes:

[0580] An air inlet component, the front and top of which are open and an accommodation space is formed inside;

[0581] A panel component, which is installed at the open position in the front of the air inlet component;

[0582] A top cover component, which is installed at the open position on the top of the air inlet component;

[0583] A base component, which is installed at the bottom of the air inlet component;

[0584] Among them, a wind frame with a first air vent and a second air vent opening upward is defined between the air inlet component, the top cover component and the panel component, and a third air vent with an opening direction forward and a fourth air vent with an opening direction downward are defined between the air inlet component, the base component and the panel component.

[0585] Further optionally, the indoor unit of the cabinet air conditioner includes a heat exchanger device, and the heat exchanger device includes a heat exchanger and a mounting frame; the heat exchanger includes a first heat exchanger and a second heat exchanger; the mounting frame includes a first side bracket and a second side bracket oppositely arranged in the first horizontal direction, and an installation cavity is formed between the first side bracket and the second side bracket; the structure of the first side bracket is adapted to the structure of the first heat exchanger, and the first heat exchanger is arranged on the first side bracket; the structure of the second side bracket is adapted to the structure of the second heat exchanger, and the second heat exchanger is arranged on the second side bracket;

[0586] Both the first heat exchanger and the second heat exchanger are located in the installation cavity, and a receiving space is formed between the first heat exchanger and the second heat exchanger. Air can enter the receiving space through the first heat exchanger and the second heat exchanger.

[0587] Further optionally, the first heat exchanger includes two first edges oppositely arranged in the second horizontal direction, and each of the first edges forms a first side plate; the first side bracket includes two first columns oppositely arranged in the second horizontal direction, and each of the first columns is provided with a first connecting plate; the two first side plates and the two first columns are arranged in one-to-one correspondence and are detachably connected, so that the first heat exchanger is arranged on the first side bracket;

[0588] The second heat exchanger includes two second edges oppositely arranged in the second horizontal direction, and each of the second edges forms a second side plate; the second side bracket includes two second columns oppositely arranged in the second horizontal direction, and each of the second columns is provided with a second connecting plate; the two second side plates and the two second columns are arranged in one-to-one correspondence and are detachably connected, so that the second heat exchanger is arranged on the second side bracket;

[0589] Wherein, the second horizontal direction is perpendicular to the first horizontal direction.

[0590] Further optionally, the first side bracket forms a plurality of first support ribs, and the plurality of first support ribs are arranged at intervals in the vertical direction; the structure of each first support rib is adapted to the structure of the first heat exchanger for supporting the first heat exchanger;

[0591] The second side bracket forms a plurality of second support ribs, and the plurality of second support ribs are arranged at intervals in the vertical direction; the structure of each second support rib is adapted to the structure of the second heat exchanger for supporting the second heat exchanger.

[0592] Further optionally, both the first heat exchanger and the first side bracket form a V-shaped structure; when the first heat exchanger is arranged on the first side bracket, the V-shaped structures of the first heat exchanger and the first side bracket protrude to the same side, and the V-shaped structure of the first heat exchanger surrounds the V-shaped structure of the first side bracket on the inner side;

[0593] Both the second heat exchanger and the second side bracket form a V-shaped structure; when the second heat exchanger is arranged on the second side bracket, the V-shaped structures of the second heat exchanger and the second side bracket protrude to the same side, and the V-shaped structure of the second heat exchanger surrounds the V-shaped structure of the second side bracket on the inner side;

[0594] The convex directions of the first side bracket and the second side bracket are opposite to each other.

[0595] Further optionally, the first heat exchanger includes an A1 heat exchange section and a B1 heat exchange section, and the A1 heat exchange section and the B1 heat exchange section are arranged vertically opposite to each other and form a V-shaped structure;

[0596] The second heat exchanger includes an A2 heat exchange section and a B2 heat exchange section; the A2 heat exchange section and the B2 heat exchange section are arranged vertically opposite to each other and form a V-shaped structure;

[0597] The A1 heat exchange section and the A2 heat exchange section are arranged symmetrically about the vertical symmetry axis of the installation frame, and the B1 heat exchange section and the B2 heat exchange section are arranged symmetrically about the vertical symmetry axis of the installation frame.

[0598] Further optionally, the installation frame includes a top bracket and a bottom bracket that are arranged opposite to each other in the vertical direction, and the first side bracket, the top bracket, the second side bracket, and the bottom bracket are sequentially connected and enclose the installation cavity;

[0599] A water receiving tray is provided on the bottom bracket for collecting condensed water.

[0600] Further optionally, a housing cavity is formed inside the housing, an upper air inlet is formed in the upper part of the housing, a lower air outlet is formed in the lower part of the housing, and both the upper air inlet and the lower air outlet communicate with the room; the heat exchanger device is arranged in the housing cavity, and the air duct assembly is arranged in the accommodation space; the air duct assembly forms an upper air duct, an upper air blade cavity, a lower air blade cavity, and a lower air duct that are sequentially arranged from top to bottom, the upper air blade cavity includes an upper air blade cavity outlet and an upper air blade cavity inlet, and the lower air blade cavity includes a lower air blade cavity outlet and a lower air blade cavity inlet; the upper air duct communicates the upper air inlet and the upper air blade cavity outlet; an upper air return opening is formed on the side wall of the upper air duct, and the upper air return opening communicates the upper air duct and the housing cavity; the lower air duct communicates the lower air outlet and the lower air blade cavity outlet; a lower air return opening is formed on the side wall of the lower air duct, and the lower air return opening communicates the lower air duct and the housing cavity;

[0601] The first heat exchanger is a first indoor heat exchanger, the second heat exchanger is a second indoor heat exchanger, and both the first indoor heat exchanger and the second indoor heat exchanger are arranged close to the upper air blade cavity inlet and the lower air blade cavity inlet;

[0602] Both the upper air return opening and the lower air return opening can be controlled to be opened or closed, the upper air duct and the upper air blade cavity outlet can be controlled to be communicated or disconnected, and the lower air duct and the lower air blade cavity outlet can be controlled to be communicated or disconnected, so that the indoor unit forms a downward air flow path with air entering from the upper air inlet and exiting from the lower air outlet, or an upward air flow path with air entering from the lower air inlet and exiting from the upper air outlet.

[0603] Further optionally, the upper air duct includes an upper main air duct, and an upper air return opening is formed on the side wall of the upper main air duct; the lower air duct includes a lower main air duct, and a lower air return opening is formed on the side wall of the lower main air duct; the air duct assembly includes a volute and a volute cover, and the volute and the volute cover are cooperatively connected to form the upper main air duct, an upper air impeller cavity, a lower air impeller cavity, and the lower main air duct;

[0604] The volute is disposed close to the first side bracket, and each of the first cylinders is provided with a first connecting plate; the volute includes two volute edges oppositely disposed in the second horizontal direction, and the two volute edges are correspondingly disposed and connected to the two first connecting plates, and a first sealing rib is disposed between the volute edge and the first connecting plate;

[0605] The volute cover is disposed close to the second side bracket, and each of the second cylinders is provided with a second connecting plate; the volute cover includes two volute cover edges oppositely disposed in the second horizontal direction, and the two volute cover edges are correspondingly disposed and connected to the two second connecting plates, and a second sealing rib is disposed between the volute cover edge and the second connecting plate.

[0606] The present invention further provides a cabinet air conditioner, including an outdoor unit and the indoor unit described above. The outdoor unit includes an outdoor heat exchanger, a four-way reversing valve, a gas-liquid separator, a compressor, and a throttling device; the outdoor heat exchanger, the four-way reversing valve, the gas-liquid separator, the compressor, the first indoor heat exchanger, the second indoor heat exchanger, and the throttling device are connected through a refrigerant pipeline to form a refrigerant circuit, and the first indoor heat exchanger and the second indoor heat exchanger are connected in parallel in the refrigerant circuit;

[0607] A compressor outlet pipeline is connected between the refrigerant outlet side of the compressor and the refrigerant inlet side of the outdoor heat exchanger; a first indoor heat exchanger inlet pipeline is connected between the refrigerant inlet side of the first indoor heat exchanger and the refrigerant outlet side of the condenser; a control pipeline is communicated between the compressor outlet pipeline and the first indoor heat exchanger inlet pipeline, and a first control valve is disposed on the control pipeline; a second control valve is disposed on the first indoor heat exchanger inlet pipeline, and the second control valve is closer to the outdoor heat exchanger than the first control valve;

[0608] The cabinet air conditioner is provided with a refrigeration mode and a dehumidification mode; when the cabinet air conditioner is in the refrigeration mode, the first control valve is in a closed state, the second control valves are all in an open state, the first indoor heat exchanger and the second indoor heat exchanger both act as evaporators to absorb heat, and the outdoor heat exchanger acts as a condenser to release heat;

[0609] When the cabinet air conditioner is in the dehumidification mode, the first control valve is in the open state, the second control valve is in the closed state. A part of the refrigerant discharged by the compressor directly enters the first indoor heat exchanger through the first control valve, and another part of the refrigerant discharged by the compressor enters the second indoor heat exchanger through the outdoor heat exchanger and the throttling device. The refrigerant discharged from the second indoor heat exchanger and the refrigerant discharged from the first indoor heat exchanger are mixed and then enter the compressor through the gas-liquid separator. The gas-liquid separator has functions of storing, gas-liquid separation and flashing for the refrigerant.

[0610] The present invention also provides a dehumidification control method for a cabinet air conditioner, and the cabinet air conditioner is the cabinet air conditioner as described above; the dehumidification control method includes:

[0611] Control the cabinet air conditioner to be in the refrigeration mode;

[0612] Judge whether the indoor air needs to be dehumidified. In the case that the indoor air needs to be dehumidified, control the cabinet air conditioner to be in the dehumidification mode.

[0613] Further optionally, the judging whether the indoor air needs to be dehumidified includes:

[0614] Calculate the difference ΔD = Dm - Dd between Dm and Dd and respectively compare ΔD with D1 and ΔD with D2;

[0615] When ΔD ≥ D1, it is determined that the indoor air is in a high humidity state and needs to be dehumidified;

[0616] When D2 ≤ ΔD < D1, it is determined that the indoor air is in a low humidity state and needs to be dehumidified;

[0617] When ΔD < D2, it is determined that there is no need to dehumidify the indoor air;

[0618] Wherein, Dm is the target humidity of the indoor air, Dd is the current humidity of the indoor air; D1 is the first preset humidity, and D2 is the second preset humidity.

[0619] Further optionally, the controlling the cabinet air conditioner to be in the dehumidification mode includes:

[0620] In the case that the indoor air is in a high humidity state, control the opening degree of the throttling device to be P1 and the compressor to operate at a frequency f1;

[0621] In the case that the indoor air is in a low humidity state, control the opening degree of the throttling device to be P2 and the compressor to operate at a frequency f2;

[0622] Wherein, f1 > f2, P1 < P2.

[0623] Further optionally, the dehumidification control method further includes:

[0624] When the cabinet air conditioner is in the dehumidification mode, obtain T and Tm and compare T and Tm;

[0625] Adjust the opening degree of the first control valve according to the comparison result of T and Tm, and then adjust the refrigerant amount entering the first indoor heat exchanger;

[0626] Wherein, T is the current air outlet temperature of the upper air outlet or the lower air outlet, and Tm is the target temperature of the indoor air.

[0627] Further optionally, the air duct assembly in the embodiment 34 of the indoor unit of the cabinet air conditioner of the present invention is arranged inside the housing along the height direction of the housing. The upper end of the air duct assembly communicates with the upper air outlet, the lower end of the air duct assembly communicates with the lower air outlet, and a body housing channel is formed between the outside of the air duct assembly and the housing, and a fan air duct is formed inside;

[0628] A fan assembly is arranged in the fan air duct of the air duct assembly, and an air inlet communicating with the body housing channel is axially provided;

[0629] A heat exchanger assembly is arranged in the body housing channel. The heat exchanger assembly has opposite first and second heat exchange surfaces. The first heat exchange surface faces the housing, and the second heat exchange surface faces the air duct assembly;

[0630] Wherein, a first heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the first heat exchange surface facing the housing and the housing, and a second heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the second heat exchange surface facing the air duct assembly and the air duct assembly;

[0631] Wherein the first heat exchange cavity and the second heat exchange cavity are communicated through the heat exchanger assembly, and the gradual change rules of the first heat exchange cavity and the second heat exchange cavity are opposite.

[0632] Further optionally, the heat exchanger assembly includes a V-shaped heat exchanger with an opening facing the air duct assembly. The V-shaped heat exchanger includes a V-shaped first heat exchange surface arranged on the side facing the housing and a V-shaped second heat exchange surface arranged on the side facing the air duct assembly;

[0633] The V-shaped first heat exchange surface includes a first upper heat exchange surface that extends obliquely upward from the middle of the heat exchanger assembly and a first lower heat exchange surface that extends obliquely downward from the middle of the heat exchange assembly. A first upper heat exchange cavity in a gradually shrinking form from top to bottom is defined between the first upper heat exchange surface and the housing, and a first lower heat exchange cavity in a gradually shrinking form from bottom to top is defined between the first lower heat exchange surface and the housing. The first upper heat exchange cavity and the first lower heat exchange cavity communicate at the middle position of the heat exchanger assembly to form a first heat exchange cavity;

[0634] The V-shaped second heat exchange surface includes a second upper heat exchange surface that extends obliquely upward from the middle of the heat exchanger assembly, and a second lower heat exchange surface that extends obliquely downward from the middle of the heat exchanger assembly. A second upper heat exchange cavity that gradually expands from top to bottom is defined between the second upper heat exchange surface and the air duct assembly, and a second lower heat exchange cavity that gradually expands from bottom to top is defined between the second lower heat exchange surface and the air duct assembly. The second upper heat exchange cavity and the second lower heat exchange cavity communicate with each other at the middle position of the heat exchanger assembly to form a second heat exchange cavity;

[0635] Among them, the first upper heat exchange cavity is opposite to the second upper heat exchange cavity, and the first lower heat exchange cavity is opposite to the second lower heat exchange cavity.

[0636] Further optionally, there are two sets of heat exchanger assemblies, and the two sets of heat exchanger assemblies are symmetrically distributed on both sides of the air duct assembly;

[0637] Air inlet openings are formed at both ends of the fan assembly on the air duct assembly in its axial direction.

[0638] Further optionally, a cavity for accommodating the air duct assembly is formed between the two sets of heat exchanger assemblies;

[0639] The air duct assembly is accommodated in the cavity and fixedly connected to the heat exchanger assembly.

[0640] Further optionally, the fan air duct includes an upper fan air duct and a lower fan air duct that are independent of each other and distributed up and down, and the fan assembly includes an upper fan assembly and a lower fan assembly;

[0641] The upper fan assembly is arranged in the upper fan air duct, and the lower fan assembly is arranged in the lower fan air duct.

[0642] Further optionally, the upper half of the heat exchanger assembly corresponds to the air inlet opening at one axial end of the upper fan assembly;

[0643] The lower half of the heat exchanger assembly corresponds to the air inlet opening at the other axial end of the lower fan assembly.

[0644] Further optionally, the air duct assembly further includes an upper air duct and a lower air duct;

[0645] The upper end of the upper air duct communicates with the upper air inlet, and the lower end communicates with the upper fan air duct;

[0646] The upper end of the lower air duct communicates with the lower fan air duct, and the lower end communicates with the lower air inlet;

[0647] An upper air return opening that communicates the upper air duct and the fuselage shell passage is provided on the air duct wall of the upper fan air duct. An upper air blocking mechanism is rotatably arranged at the position of the upper air return opening. The upper air blocking mechanism can shut off the connection between the upper air duct and the upper fan air duct while opening the upper air return opening, and connect the upper air duct and the upper fan air duct while closing the upper air return opening;

[0648] On the air duct wall of the lower air duct of the fan, there is a lower air return opening that connects the lower air duct and the channel of the fuselage shell. A lower air blocking mechanism is rotatably arranged at the position of the lower air return opening. The lower air blocking mechanism can cut off the connection between the lower air duct and the lower air duct of the fan while opening the lower air return opening, and connect the lower air duct and the lower air duct of the fan while closing the lower air return opening.

[0649] Further optionally, the upper air blocking mechanism includes an upper air blocking member rotatably arranged at the upper air return opening, and the lower air blocking mechanism includes a lower air blocking member rotatably arranged at the lower air return opening.

[0650] Further optionally, an upper auxiliary air inlet is also provided at the upper part of the shell, and a lower auxiliary air inlet is also provided at the lower part of the shell;

[0651] Among them, the upper part of the fuselage shell channel is connected to the upper auxiliary air inlet, and the lower part is connected to the lower auxiliary air inlet.

[0652] Further optionally, the shell includes:

[0653] An air inlet component, the front and top of the air inlet component are open, and an accommodation space is formed inside;

[0654] A panel component, which is installed at the open position in the front of the air inlet component;

[0655] A top cover component, which is installed at the open position on the top of the air inlet component;

[0656] A base component, which is installed at the bottom of the air inlet component;

[0657] Among them, an upper air outlet and an upper auxiliary air inlet with an upward opening direction are defined between the air inlet component, the top cover component and the panel component, and a lower air outlet with a forward opening direction and a lower auxiliary air inlet with a backward opening direction are defined between the air inlet component, the base component and the panel component.

[0658] Further optionally, the shell encloses a shell cavity, and an upper air outlet is formed at the upper part of the shell and a lower air outlet is formed at the lower part of the shell; the air duct assembly is arranged in the shell cavity, and the upper air duct and the lower air duct can enable the indoor unit of the cabinet air conditioner to intake air from the lower air outlet and exhaust air from the upper air outlet, or intake air from the upper air outlet and exhaust air from the lower air outlet; the air duct assembly forms a fan blade cavity, and the fan blade cavity includes a fan blade cavity inlet;

[0659] The indoor unit of the cabinet air conditioner further includes a filter screen assembly and a filter screen cleaning device; the filter screen assembly includes a filter screen frame and a filter screen, the filter screen frame is arranged in the shell cavity and is close to the fan blade cavity inlet; the filter screen is arranged on the filter screen frame; the filter screen cleaning device includes:

[0660] A drying component, which includes a heating element for drying the dust on the filter screen before cleaning the dust;

[0661] A cleaning component, which includes a brush, and the brush is movably arranged on the filter screen frame for cleaning the dust on the filter screen;

[0662] A dust discharging component, which includes a dust collecting box. The dust collecting box is arranged at the bottom of the filter screen for collecting the dust falling off from the filter screen. A dust discharging port is formed at the bottom of the dust collecting box, and a dust discharging pipe is connected to the dust discharging port.

[0663] Further optionally, the heating element is an indoor heat exchanger or an electric heating element. When the heating element is an indoor heat exchanger, the drying component further includes a heat exchanger bracket. The heat exchanger bracket is connected to the filter screen frame and is located on the air outlet side of the filter screen. The indoor heat exchanger is arranged on the heat exchanger bracket. The indoor heat exchanger is located between the filter screen and the inlet of the air impeller cavity, and the structure of the indoor heat exchanger is adapted to the structure of the filter screen.

[0664] Further optionally, the extending structure of the brush on the horizontal plane is adapted to the cross-sectional structure of the filter screen. The cleaning component further includes a driving mechanism. The driving mechanism includes a lead screw and a lead screw nut. The lead screw is rotatably arranged on the heat exchanger bracket. The lead screw nut is in screw transmission connection with the lead screw, and the brush is arranged on the lead screw nut.

[0665] The lead screw is controlled to rotate, so that the lead screw nut drives the brush to move up and down relative to the heat exchanger bracket.

[0666] Further optionally, the brush is rotatably arranged on the lead screw nut. When the brush moves up and down, it can be controlled to rotate, so that the brush can clean the dust on the filter screen.

[0667] Further optionally, the cabinet-type air conditioner indoor unit includes an air inlet - air outlet device. The air inlet - air outlet device forms an air outlet cavity, and an air outlet impeller is rotatably arranged in the air outlet cavity. The air outlet cavity includes a sewage discharge air outlet and a dust inlet. The sewage discharge air outlet is communicated with the outside through a sewage discharge air pipe, and the sewage discharge air pipe can discharge the indoor dirty air. The dust inlet and the dust discharge port are communicated with each other through the dust discharge pipe.

[0668] When the air outlet impeller rotates, the dust in the dust collecting box can enter the air outlet cavity through the dust discharge pipe, and then be discharged to the outside through the sewage discharge air pipe.

[0669] Further optionally, the air intake - exhaust device is arranged on the lower side of the housing cavity and the air intake - exhaust device is located at the rear side of the lower air outlet; the air intake - exhaust device further forms an air intake cavity, and an air intake fan blade is rotatably arranged in the air intake cavity; the air intake cavity further includes a fresh air intake opening; the fresh air intake opening is communicated with the outdoor through a fresh air intake pipe, and the fresh air intake pipe can introduce outdoor fresh air.

[0670] Further optionally, the housing includes a base, and the base includes a water receiving tray. The water receiving tray is located below the indoor heat exchanger. The water receiving tray can collect the condensed water generated by the indoor heat exchanger and part of the dust falling off from the filter net, and this part of the dust can be discharged to the outdoor along with the condensed water.

[0671] Further optionally, the housing includes a housing top wall and a housing front side wall. The housing top wall forms an upper air outlet, and the lower side of the housing front side wall forms a lower air outlet. Both the upper air outlet and the lower air outlet are communicated with the indoor; the air duct assembly forms an upper air duct, an upper fan blade cavity, a lower fan blade cavity and a lower air duct which are arranged in sequence from top to bottom; the upper fan blade cavity forms an upper fan blade cavity inlet and an upper fan blade cavity outlet, and the lower fan blade cavity forms a lower fan blade cavity inlet and a lower fan blade cavity outlet; the upper air duct communicates the upper air outlet with the upper fan blade cavity outlet, and an upper air return opening is formed on the side wall of the upper air duct; the lower air duct communicates the lower air outlet with the lower fan blade cavity outlet, and a lower air return opening is formed on the side wall of the lower air duct; the fan blade cavity inlet includes the upper fan blade cavity inlet and the lower fan blade cavity inlet;

[0672] The upper fan blade cavity inlet communicates the upper fan blade cavity with the housing cavity, and the lower fan blade cavity inlet communicates the lower fan blade cavity with the housing cavity; the upper air return opening communicates the upper air duct with the housing cavity, and the lower air return opening communicates the lower air duct with the housing cavity;

[0673] Further optionally, the upper air return opening and the lower air return opening can be controlled to be opened or closed, the upper air duct and the upper fan blade cavity outlet can be controlled to be communicated or disconnected, and the lower air duct and the lower fan blade cavity outlet can be controlled to be communicated or disconnected, so that the cabinet - type air conditioner indoor unit can realize the upper - air - inlet and lower - air - outlet air supply mode with air inlet from the upper air outlet and air outlet from the lower air outlet and the lower - air - inlet and upper - air - outlet air supply mode with air inlet from the lower air outlet and air outlet from the upper air outlet.

[0674] The upper fan blade cavity inlet includes a left upper fan blade cavity inlet and a right upper fan blade cavity inlet which are oppositely arranged, and the lower fan blade cavity inlet includes a left lower fan blade cavity inlet and a right lower fan blade cavity inlet which are oppositely arranged;

[0675] The filter net includes a left filter net and a right filter net. The left filter net is arranged at the left upper fan blade cavity inlet and the left lower fan blade cavity inlet, and the right filter net is arranged at the right upper fan blade cavity inlet and the right lower fan blade cavity inlet;

[0676] One filter cleaning device is provided at each of the left filter net and the right filter net.

[0677] Further optionally, the housing further includes a left housing side wall and a right housing side wall which are oppositely arranged left and right; the indoor heat exchanger includes a left heat exchanger and a right heat exchanger which are both arranged in the housing cavity;

[0678] The left heat exchanger includes an A1 heat exchange section and a B1 heat exchange section which are oppositely arranged up and down; the A1 heat exchange section is arranged between the left filter net and the left inlet of the upper air blade cavity; the B1 heat exchange section is arranged between the left filter net and the left inlet of the lower air blade cavity; the A1 heat exchange section can dry the dust on the upper side of the left filter net, and the B1 heat exchange section can dry the dust on the lower side of the left filter net;

[0679] The right heat exchanger includes an A2 heat exchange section and a B2 heat exchange section which are oppositely arranged up and down; the A2 heat exchange section is arranged between the right filter net and the right inlet of the upper air blade cavity; the B2 heat exchange section is arranged between the right filter net and the right inlet of the lower air blade cavity; the A2 heat exchange section can dry the dust on the upper side of the right filter net, and the B2 heat exchange section can dry the dust on the lower side of the right filter net.

[0680] The present invention also provides a method for cleaning the filter net of a cabinet-type air conditioner indoor unit; the cabinet-type air conditioner indoor unit is the cabinet-type air conditioner indoor unit described in any one of the above; the filter cleaning device is provided with a filter cleaning mode, and the filter cleaning mode includes a drying stage, a cleaning stage and a dust discharging stage which are carried out in sequence; the filter cleaning method includes:

[0681] When the filter net needs to be cleaned, control the filter cleaning device to first enter the drying stage to dry the dust on the filter net, then enter the cleaning stage to clean the dust on the filter net, and then enter the dust discharging stage to discharge the dust in the dust collection box to the outside through the dust discharging pipe.

[0682] Further optionally, the cabinet-type air conditioner indoor unit is provided with a heating mode;

[0683] The control for the filter cleaning device to first enter the drying stage includes: controlling the cabinet-type air conditioner indoor unit to be in the heating mode or the electric heating element to be in the powered-on state;

[0684] The control for the filter cleaning device to then enter the cleaning stage includes: controlling the lead screw and the brush to rotate;

[0685] The control for the filter cleaning device to then enter the dust discharging stage includes: controlling the exhaust air blade to rotate.

[0686] The present invention also provides a control method for a cabinet-type air conditioner indoor unit. The cabinet-type air conditioner indoor unit includes a housing and an air duct assembly. The housing encloses a housing cavity, and an upper air inlet and an upper air intake are formed at the upper part of the housing. A lower air outlet and a lower air intake are formed at the lower part of the housing. The air duct assembly is disposed in the housing cavity, and the air duct assembly forms an upper air outlet main flow path with air entering from the lower air outlet and exiting from the upper air outlet, a lower air outlet main flow path with air entering from the upper air outlet and exiting from the lower air outlet, and an upper and lower simultaneous air outlet main flow path with air exiting from both the upper air outlet and the lower air outlet. A lower auxiliary air intake flow path with air entering from the lower air intake for auxiliary air intake, an upper auxiliary air intake flow path with air entering from the upper air intake for auxiliary air intake, and an upper and lower simultaneous auxiliary air intake flow path with air entering from both the upper air intake and the lower air intake for auxiliary air intake are formed between the housing cavity and the air duct assembly.

[0687] The control method includes:

[0688] Determine the target operation mode of the cabinet-type air conditioner indoor unit;

[0689] Compare the current temperature of the indoor air with a first preset temperature;

[0690] Determine a target main flow path and a target auxiliary air intake flow path according to the target operation mode and the comparison result of the current temperature and the first preset temperature;

[0691] Wherein, the target operation mode is a heating mode or a cooling mode, and the target main flow path is the upper air outlet main flow path or the lower air outlet main flow path or the upper and lower simultaneous air outlet main flow path; the target auxiliary air intake flow path is the lower auxiliary air intake flow path or the upper auxiliary air intake flow path or the upper and lower simultaneous auxiliary air intake flow path.

[0692] Further optionally, the determining the target main flow path and the target auxiliary air intake flow path according to the target operation mode and the comparison result of the current temperature and the first preset temperature includes:

[0693] When the target operation mode is the cooling mode and the current temperature is greater than the first preset temperature, or when the target operation mode is the heating mode and the current temperature is less than the first preset temperature, the target main flow path is the upper and lower simultaneous air outlet main flow path, and the target auxiliary air intake flow path is the upper and lower simultaneous auxiliary air intake flow path.

[0694] Further optionally, the determining the target main flow path and the target auxiliary air intake flow path according to the target operation mode and the comparison result of the current temperature and the first preset temperature further includes:

[0695] When the target operation mode is the cooling mode and the current temperature is less than or equal to the first preset temperature, calculate the upper and lower temperature difference between the upper-layer air temperature and the lower-layer air temperature of the room and compare the upper and lower temperature difference with a second preset temperature;

[0696] When the upper-lower temperature difference is greater than the second preset temperature, the target main air flow path is the upper air outlet main air flow path, and the target auxiliary air inlet flow path is the lower auxiliary air inlet flow path;

[0697] When the upper-lower temperature difference is less than or equal to the second preset temperature, the target main air flow path is the upper air outlet main air flow path, and the target auxiliary air inlet flow path is the upper and lower simultaneous auxiliary air inlet flow paths.

[0698] Further optionally, determining the target main air flow path and the target auxiliary air inlet flow path according to the target operation mode and the comparison result between the current temperature and the first preset temperature further includes:

[0699] When the target operation mode is the heating mode and the current temperature is greater than or equal to the first preset temperature, calculate the upper-lower temperature difference between the indoor upper-layer air temperature and the lower-layer air temperature and compare the upper-lower temperature difference with the third preset temperature;

[0700] When the upper-lower temperature difference is greater than the third preset temperature, the target main air flow path is the lower air outlet main air flow path, and the target auxiliary air inlet flow path is the upper auxiliary air inlet flow path;

[0701] When the upper-lower temperature difference is less than or equal to the third preset temperature, the target main air flow path is the lower air outlet main air flow path, and the target auxiliary air inlet flow path is the upper and lower simultaneous auxiliary air inlet flow paths.

[0702] The present invention further provides a control method for an indoor unit of a cabinet air conditioner, where the indoor unit of the cabinet air conditioner is the indoor unit of the cabinet air conditioner as described above; a first air duct, a second air duct, a first connecting air duct, and a second connecting air duct are provided in the housing; the first air duct is the upper air duct, and the second air duct is the lower air duct; wherein:

[0703] The first air duct is provided with a first outer air outlet communicating with the indoor environment where the indoor unit is located and a first inner air outlet communicating with the first connecting air duct and the first air duct; the second air duct is provided with a second outer air outlet communicating with the indoor environment where the indoor unit is located and a second inner air outlet communicating with the second connecting air duct and the second air duct; the first outer air outlet is arranged at the upper part of the housing, and the second outer air outlet is arranged at the lower part of the housing; the first outer air outlet is the upper air outlet, and the second outer air outlet is the lower air outlet;

[0704] A first fan and a first baffle are arranged on the first air duct. The first fan is provided with a first fan air inlet and a first fan air outlet. The first fan air outlet is connected to the first air duct. The first fan air inlet and the first inner air outlet are communicated through the first connecting air duct; the first baffle can be controlled to block the first inner air outlet while opening the first fan air outlet or block the first fan air outlet while opening the first inner air outlet;

[0705] A second air blower and a second baffle are provided on the second air duct. The second air blower is provided with a second air blower air inlet and a second air blower air outlet. The second air blower air outlet is connected to the second air duct, and the second air blower air inlet and the second inner air inlet are communicated through a second communicating air duct. The second baffle can be controlled to block the second inner air inlet while opening the second air blower air outlet or to block the second air blower air outlet while opening the second inner air inlet.

[0706] When the cabinet-type air conditioner indoor unit is designed in a refrigeration or dehumidification mode, the first outer air outlet is used as the indoor environment air outlet, the second outer air outlet is used as the indoor environment air inlet, and the first air blower is started. The control method includes:

[0707] In response to the refrigeration signal or dehumidification signal of the cabinet-type air conditioner indoor unit, obtain the operating parameters of the cabinet-type air conditioner indoor unit.

[0708] According to the matching situation between the operating parameters and the preset dew condensation detection conditions and / or frost formation detection conditions, adjust the operating state of the second air blower to inhibit dew condensation and / or defrosting.

[0709] Further optionally, the adjusting the operating state of the second air blower according to the matching situation between the operating parameters and the preset dew condensation detection conditions and / or frost formation detection conditions includes:

[0710] Compare the first temperature and the second temperature in the operating parameters with the dew condensation detection conditions to obtain the matching situation between the operating parameters and the dew condensation detection conditions, where the first temperature is the temperature in the first air duct and the second temperature is the temperature in the second air duct.

[0711] When the operating parameters match the dew condensation detection conditions, start the second air blower.

[0712] Further optionally, the comparing the first temperature and the second temperature in the operating parameters with the dew condensation detection conditions to obtain the matching situation between the operating parameters and the dew condensation detection conditions includes:

[0713] Calculate the difference between the first temperature and the second temperature to obtain a first temperature difference.

[0714] Compare the first temperature difference with the first temperature threshold in the dew condensation detection conditions. When the first temperature difference is greater than or equal to the first temperature threshold and the duration exceeds the first time threshold in the dew condensation detection conditions, determine that the operating parameters match the dew condensation detection conditions.

[0715] Further optionally, before comparing the first temperature and the second temperature in the operating parameters with the condensation detection condition, the method further includes:

[0716] Obtaining a first indoor temperature when responding to the refrigeration signal or the dehumidification signal;

[0717] Obtaining a second indoor temperature after a second time threshold when responding to the refrigeration signal or the dehumidification signal;

[0718] When the difference between the first indoor temperature and the second indoor temperature is less than or equal to a preset second temperature threshold, perform the comparison of the first temperature and the second temperature in the operating parameters with the condensation detection condition.

[0719] Further optionally, adjusting the operating state of the second fan according to the matching situation between the operating parameters and the preset condensation detection condition and / or frosting detection condition includes:

[0720] Comparing the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition, where the third temperature is the pipe temperature of the evaporator in the indoor unit of the cabinet air conditioner;

[0721] When the operating parameters match the frosting detection condition, start the second fan.

[0722] Further optionally, comparing the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition includes:

[0723] Judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition;

[0724] If so, determine that the operating parameters match the frosting detection condition.

[0725] Further optionally, before judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition, the method further includes:

[0726] Judging whether the compressor operating frequency in the operating parameters exceeds the frequency threshold in the frosting detection condition;

[0727] When the operating frequency of the compressor exceeds the frequency threshold, execute the operation of determining whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition.

[0728] Compared with the prior art, the beneficial effects of the present invention mainly lie in:

[0729] (1) The positions of the upper air outlet and the lower air outlet are optimized, and the distance between the upper air outlet and the lower air outlet is increased; during refrigeration, the upper air duct is communicated with the dynamic air blade cavity and the lower air duct is communicated with the housing cavity, and an upper air outlet main flow path is formed in the cabinet air conditioner indoor unit, and indoor air can enter the upper air outlet main flow path from the lower air outlet and be discharged from the upper air outlet; during heating, the upper air duct is communicated with the housing cavity and the lower air duct is communicated with the dynamic air blade cavity, and a lower air outlet main flow path is formed in the cabinet air conditioner indoor unit, and indoor air can enter the lower air outlet main flow path from the upper air outlet and be discharged from the lower air outlet; by making full use of the principle that cold air sinks during refrigeration and hot air rises during heating, large swirling eddies are formed in the room where the indoor unit is located, the temperature change speed of the indoor air is increased, the temperature distribution of the indoor air is made uniform and the flow velocity is stable, the time required for the room where the indoor unit is located to reach the set temperature is shortened, and the comfort of the air is improved;

[0730] (2) The upper air duct is used to smoothly guide the air in the upper air duct to the housing cavity, or the lower air inlet - upper air outlet is selected, and the lower air duct is used to smoothly guide the air in the lower air duct to the housing cavity, so as to increase the ventilation volume and reduce the air pressure loss. By making full use of the principle that cold air sinks during refrigeration and hot air rises during heating, the airflow range is expanded and the temperature change speed of the indoor air is increased;

[0731] (3) When the first baffle and the second baffle are in the folded state, the third ventilation opening can be blocked, and the first ventilation opening and the second ventilation opening are communicated, so as to reduce the occupied space of the baffle assembly and enable the air to smoothly flow through the first ventilation opening and the second ventilation opening; when the first baffle and the second baffle are in the extended state, the first ventilation opening and the second ventilation opening can be disconnected, the first ventilation opening and the third ventilation opening are communicated, and the first baffle and the second baffle form a flow guiding surface, which can smoothly guide the air entering the air duct through the first ventilation opening to the third ventilation opening, reduce the air flow resistance and noise, and increase the air output;

[0732] (4) No additional components are required, and the control process is simple; only by controlling the rotation of the upper air blade, the upper air outlet can be realized; by controlling the rotation of the lower air blade, the lower air outlet can be realized;

[0733] (5) On the premise of not using a motion mechanism, the automatic switching of the air inlet and outlet is realized by controlling the fan, and at the same time, the integrity of the appearance is ensured in this mode;

[0734] (6) By setting the air inlet at the front side or the left and right sides of the housing, the air volume and noise meet the requirements, while reducing the size of the housing and improving comfort.

[0735] (7) When the first upper wind-blocking structure closes the upper air return opening while connecting the upper air duct and the outlet of the upper air blade cavity, the second upper wind-blocking structure opens the upper communication port, the first lower wind-blocking structure opens the lower air return opening while disconnecting the lower air duct and the outlet of the lower air blade cavity, and the second lower wind-blocking structure opens the lower communication port, the cabinet-type air conditioner indoor unit can be in the lower air inlet and upper strong air outlet mode; when the first upper wind-blocking structure opens the upper air return opening while disconnecting the upper air duct and the outlet of the upper air blade cavity, the second upper wind-blocking structure opens the upper communication port, the first lower wind-blocking structure closes the lower air return opening while connecting the lower air duct and the outlet of the lower air blade cavity, and the second lower wind-blocking structure opens the lower communication port, the cabinet-type air conditioner indoor unit can be in the upper air inlet and lower strong air outlet mode; it improves the air flow velocity in the air blade cavity and the air volume of the indoor unit, expands the air supply range, and extends the air supply distance.

[0736] (8) The ventilation volume of the upper air outlet can be adjusted, increasing the air supply volume and air supply distance, improving the temperature change speed of the indoor air, reducing the vertical temperature difference in the room, and making the temperature distribution of the indoor air uniform.

[0737] (9) It makes the temperature distribution of the indoor air uniform and the air flow velocity stable, shortens the time required for the room where the indoor unit is located to reach the set temperature, avoids air flow short circuit, and improves air comfort; cancels the air inlet on the side wall of the housing, improving the aesthetics of the indoor unit.

[0738] (10) Cancels the air inlet on the rear side panel or the left and right side panels, ensuring the consistency of the appearance of the cabinet-type air conditioner indoor unit and enhancing the overall aesthetics.

[0739] (11) When the inlet of the upper communication cavity C1 is in the open state and the inlet of the lower communication cavity D1 is in the closed state, the two air blades operate simultaneously, and the air in the lower air blade cavity can enter the upper air blade cavity through the upper communication cavity; when the inlet of the upper communication cavity C1 is in the closed state and the inlet of the lower communication cavity D1 is in the open state, the two air blades operate simultaneously, and the air in the upper air blade cavity can enter the lower air blade cavity through the lower communication cavity; the air flow resistance is small and secondary pressurization is achieved, improving the air supply volume and air supply distance.

[0740] (12) According to actual needs, select upper air inlet - lower air outlet, and use the upper guide air duct to smoothly guide the air in the upper air duct to the communication cavity, or select lower air inlet - upper air outlet, and use the lower guide air duct to smoothly guide the air in the lower air duct to the communication cavity, improving the ventilation flow rate and reducing the air pressure loss.

[0741] (13) Set the air inlet in the middle and rear part of the air inlet component, so that the air volume and noise meet the requirements, while reducing the size of the housing and improving comfort.

[0742] (14) Combine the cross-flow fan and the centrifugal fan to give full play to the advantages of both. Completely solve the problem of cold air blowing directly, utilize the high pressure and high wind speed characteristics of the centrifugal fan to drive the air flow of the cross-flow fan, increase the air supply distance, and expand the air supply range; the cross-flow fan has small air volume loss and low noise, improving the operating effect of the indoor unit;

[0743] (15) The rear side wall of the housing is not provided with an air inlet, which ensures the integrity of the appearance of the indoor unit, reduces the installation space of the indoor unit, allows the indoor unit to fit against the wall, and expands the installable range of the indoor unit;

[0744] (16) By arranging a wind blocking mechanism near the main axial flow fan, and arranging an auxiliary air blower at the upper air outlet and the lower air outlet of the air conditioner respectively, single upper / single lower / upper and lower simultaneous air outlet can be achieved by controlling the wind blocking mechanism to achieve a large air volume; at the same time, through the auxiliary air blowers at the upper and lower air outlets, the blown air can be sent further away to achieve ultra-long air supply;

[0745] (17) By arranging a wind blocking mechanism near the main axial flow fan, and arranging an auxiliary air blower at the upper air outlet and the lower air outlet of the air conditioner respectively, single upper / single lower / upper and lower simultaneous air outlet can be achieved by controlling the wind blocking mechanism to achieve a large air volume; at the same time, through the auxiliary air blowers at the upper and lower air outlets, the blown air can be sent further away to achieve ultra-long air supply;

[0746] (18) When the reversing fan is in the first working position, the wind blades rotate, enabling air intake from the upper air outlet and air outlet from the lower air outlet; when the reversing fan is in the second working position, the wind blades rotate, enabling air intake from the lower air outlet and air outlet from the upper air outlet; when controlling the reversing fan to be in different positions, different directions of air outlet can be achieved, improving the heat exchange efficiency of the air conditioner indoor unit and reducing the power consumption of the air conditioner indoor unit;

[0747] (19) A wind control structure is provided at the upper part of the indoor unit. The wind control structure consists of two air deflector plates, namely the first air deflector plate and the second air deflector plate. By controlling and adjusting the angles of the two air deflector plates, the size of the air outlet is adjusted to achieve air volume adjustment;

[0748] (20) The wind control component consists of two air deflector plates, namely the first air deflector plate and the second air deflector plate. By adjusting the angles of the two air deflector plates, the size of the ventilation opening can be adjusted to achieve air volume adjustment. Since the two air deflector plates are arranged on the opposite side edges of the air outlet and can be driven to rotate independently, when adjusting the air volume of the air outlet, part of the air outlet area will not be blocked, improving the air guiding effect;

[0749] (21) The air control assembly includes an air control assembly with a first air deflector and a second air deflector. When the first air deflector and the second air deflector are unfolded, they are combined into an air guiding mechanism to increase the air supply distance of the upper air outlet. When the first air deflector and the second air deflector are closed, they are integrated with the overall appearance of the machine, enhancing the integrity of the whole machine and preventing dust from entering the interior of the machine through the air outlet at the top.

[0750] (22) The structures of the first heat exchanger and the second heat exchanger are optimized, and the installation methods of the first heat exchanger and the second heat exchanger are improved, increasing the effective heat exchange area of the heat exchanger. Air can enter the accommodation space through the first heat exchanger and the second heat exchanger, enabling the air to fully contact the heat exchanger, extending the heat exchange duration, and improving the heat exchange efficiency.

[0751] (23) By arranging the heat exchanger directly in front of the air inlet of the fan cavity, it ensures that the incoming air is evenly distributed on the surface of the heat exchanger, ensuring that the air inlet surface of the heat exchanger remains unchanged during reversible air supply and improving the heat exchange efficiency of the heat exchanger.

[0752] (24) The cleaning process of the filter screen is divided into a drying stage, a cleaning stage, and a dust discharging stage. Correspondingly, the filter screen cleaning device is designed to include a drying component, a cleaning component, and a dust discharging component. The drying component includes a heating element, the cleaning component includes a brush, and the dust discharging component includes a dust collection box. In the drying stage, the heating element can dry the dust on the filter screen, facilitating the separation of the dust from the filter screen. In the cleaning stage, the movement of the brush can clean the dust on the filter screen. In the dust discharging stage, the dust collection box can collect the dust falling off the filter screen and discharge the dust through a dust discharging pipe, realizing automatic cleaning of the filter screen, with thorough cleaning and high cleaning efficiency. There is no need for manual cleaning, simplifying the cleaning process and enabling timely cleaning.

[0753] (25) After the refrigeration signal or the dehumidification signal is triggered, if the operating parameters match the dew condensation detection conditions and / or the frosting detection conditions, it proves that dew condensation and / or frosting has occurred or is extremely likely to occur. At this time, the operating state of the second fan is adjusted to relieve the temperature difference between the first air duct and the second air duct, suppressing dew condensation. Similarly, the adjustment of the operating state of the second fan also raises the temperature of the evaporator, suppressing frosting, ensuring the refrigeration or dehumidification effect, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0754] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and those of ordinary skill in the art can also obtain other implementation drawings according to the provided drawings without creative efforts.

[0755] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the ratio relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0756] Figure 1a Schematic diagram of the internal structure of Embodiment 1 of the cabinet air conditioner indoor unit provided by the present invention;

[0757] Figure 1b 、 Figure 1c 、 Figure 1d and Figure 1e Schematic diagram of the flow path of Embodiment 1 when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0758] Figure 1f 、 Figure 1g 、 Figure 1h and Figure 1i Schematic diagram of the flow path of Embodiment 1 when the cabinet air conditioner indoor unit provided by the present invention is in the lower air outlet mode;

[0759] Figure 1j 、 Figure 1k and Figure 1l Schematic diagram of the flow path of Embodiment 1 when the cabinet air conditioner indoor unit provided by the present invention is in the upper and lower simultaneous air outlet mode;

[0760] Figure 2a Schematic diagram of the internal structure of Embodiment 2 of the cabinet air conditioner indoor unit provided by the present invention;

[0761] Figure 2b 、 Figure 2c 、 Figure 2d and Figure 2e Schematic diagram of the flow path of Embodiment 2 when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0762] Figure 2f 、 Figure 2g 、 Figure 2h and Figure 2i Schematic diagram of the flow path of Embodiment 2 when the cabinet air conditioner indoor unit provided by the present invention is in the lower air outlet mode;

[0763] Figure 2j 、 Figure 2k and Figure 2l Schematic diagram of the flow path of Embodiment 2 when the cabinet air conditioner indoor unit provided by the present invention is in the upper and lower simultaneous air outlet mode;

[0764] Figure 3aSchematic diagram of the internal structure of the floor-standing air conditioner indoor unit, Example 3, provided by the present invention;

[0765] Figure 3b 、 Figure 3c 、 Figure 3d and Figure 3e Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 3, in the top air outlet mode, provided by the present invention;

[0766] Figure 3f 、 Figure 3g 、 Figure 3h and Figure 3i Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 3, in the bottom air outlet mode, provided by the present invention;

[0767] Figure 3j 、 Figure 3k and Figure 3l Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 3, in the top and bottom simultaneous air outlet mode, provided by the present invention;

[0768] Figure 4a and Figure 4b Schematic diagram of the internal structure of the floor-standing air conditioner indoor unit, Example 4, provided by the present invention;

[0769] Figure 4c and Figure 4d Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 4, in the top air outlet mode (simultaneous air inlet at the lower air outlet and the lower air inlet), provided by the present invention;

[0770] Figure 4e and Figure 4f Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 4, in the top air outlet mode (simultaneous air inlet at the lower air outlet and the upper air inlet), provided by the present invention;

[0771] Figure 4g and Figure 4h Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 4, in the top air outlet mode (simultaneous air inlet at the lower air outlet, the lower air inlet, and the upper air inlet), provided by the present invention;

[0772] Figure 4i and Figure 4j Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 4, in the top air outlet mode (air inlet at the lower air outlet and air outlet at the upper air outlet), provided by the present invention;

[0773] Figure 4k and Figure 4l Schematic diagram of the flow path of the floor-standing air conditioner indoor unit, Example 4, in the bottom air outlet mode (simultaneous air inlet at the upper air outlet and the upper air inlet), provided by the present invention;

[0774] Figure 4m and Figure 4nSchematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the downward air outlet mode (the upper front air outlet and the lower air inlet intake air simultaneously);

[0775] Figure 4o and Figure 4p Schematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the downward air outlet mode (the upper air outlet, the upper air inlet and the lower air inlet intake air simultaneously);

[0776] Figure 4q and Figure 4r Schematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the downward air outlet mode (the upper air inlet intakes air and the lower air outlet discharges air);

[0777] Figure 4s and Figure 4t Schematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper and lower simultaneous air outlet mode (the upper air inlet and the lower air inlet intake air simultaneously);

[0778] Figure 4u and Figure 4v Schematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper and lower simultaneous air outlet mode (the upper air inlet intakes air);

[0779] Figure 4w and Figure 4x Schematic diagram of the flow path of Embodiment 4 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper and lower simultaneous air outlet mode (the lower air inlet intakes air);

[0780] Figure 5a Explosion structure diagram of Embodiment 5 of the floor-standing air conditioner indoor unit provided by the present invention;

[0781] Figure 5b Axonometric structure diagram of Embodiment 5 of the air duct assembly (without the upper ventilation shell and the lower ventilation shell) provided by the present invention;

[0782] Figure 5c 、 Figure 5d 、 Figure 5e and Figure 5f Assembly structure diagram of Embodiment 5 of the air duct assembly (without the upper ventilation shell and the lower ventilation shell) provided by the present invention;

[0783] Figure 5g Assembly structure diagram of Embodiment 5 of the air duct assembly (without the upper ventilation shell and the lower ventilation shell) and the indoor heat exchanger provided by the present invention;

[0784] Figure 5h Structure diagram of Embodiment 5 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0785] Figure 5iA structural schematic diagram of Embodiment 5 when the cabinet-type air conditioner indoor unit provided by the present invention is in a downward air outlet mode;

[0786] Figure 5j A structural schematic diagram of Embodiment 5 of the cabinet air conditioner indoor unit provided by the present invention when the indoor unit is in a mode of simultaneously discharging air from top to bottom;

[0787] Figure 6a A schematic diagram of the exploded structure of a cabinet-type air-conditioning indoor unit embodiment 6-1 provided by the present invention;

[0788] Figure 6b A schematic diagram of the axial structure of Example 6-1 of the air duct assembly (without upper air duct and lower air duct) provided by the present invention;

[0789] Figure 6c , Figure 6d , Figure 6e and Figure 6f A schematic diagram of the assembly structure of Example 6-1 of the air duct assembly (without upper air duct and lower air duct) provided by the present invention;

[0790] Figure 6g A schematic diagram of the assembly structure of the air duct assembly (without upper air duct and lower air duct) and the indoor heat exchanger embodiment 6-1 provided by the present invention;

[0791] Figure 6h , Figure 6i and Figure 6j A schematic structural diagram of Example 6-1 when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0792] Figure 6k , Figure 6l and Figure 6m A schematic structural diagram of Example 6-1 when the cabinet air conditioner indoor unit provided by the present invention is in a downward air outlet mode;

[0793] Figure 6n and Figure 6o A schematic structural diagram of Example 6-1 when the cabinet air conditioner indoor unit provided by the present invention is in a mode of simultaneously discharging air from top to bottom;

[0794] Figure 6p and Figure 6q A schematic structural diagram of Example 6-2 when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0795] Figure 6r and Figure 6s A schematic structural diagram of Example 6-2 when the cabinet air conditioner indoor unit provided by the present invention is in a downward air outlet mode;

[0796] Figure 6t and Figure 6uSchematic structural diagram of Embodiment 6-2 when the cabinet-type air conditioner indoor unit provided by the present invention is in the up-and-down simultaneous air outlet mode;

[0797] Figure 6v and Figure 6w Schematic assembly structural diagram of the upper ventilation shell and the upper partition board of Embodiment 6-2 provided by the present invention;

[0798] Figure 6x and Figure 6y Schematic assembly structural diagram of the lower ventilation shell and the lower partition board of Embodiment 6-2 provided by the present invention;

[0799] Figure 7a Schematic assembly structural diagram of the cabinet-type air conditioner indoor unit of Embodiment 7 provided by the present invention;

[0800] Figure 7b Schematic exploded structural diagram of the cabinet-type air conditioner indoor unit of Embodiment 7 provided by the present invention;

[0801] Figure 7c Schematic internal structural diagram of the cabinet-type air conditioner indoor unit of Embodiment 7 provided by the present invention;

[0802] Figure 7d and Figure 7e Schematic assembly structural diagram of the air duct assembly (without upper and lower auxiliary air ducts) of Embodiment 7 provided by the present invention;

[0803] Figure 7f Schematic assembly structural diagram of the air duct assembly (without upper and lower auxiliary air ducts) and the indoor heat exchanger of Embodiment 7 provided by the present invention;

[0804] Figure 7g Schematic structural diagram of Embodiment 7 when the cabinet-type air conditioner indoor unit is in the lower air inlet and upper air outlet mode;

[0805] Figure 7h Schematic structural diagram of Embodiment 7 when the cabinet-type air conditioner indoor unit is in the upper air inlet and lower air outlet mode;

[0806] Figure 7i Enlarged view of the upper air outlet of the cabinet-type air conditioner indoor unit provided by the present invention;

[0807] Figure 8a 、 Figure 8b and Figure 8c Schematic structural diagram of the air duct control component of Embodiment 8 provided by the present invention;

[0808] Figure 8d Schematic structural diagram of Embodiment 8 when the first baffle and the second baffle are in the closed position;

[0809] Figure 8eA schematic diagram of the structure of an embodiment of the present invention when the first baffle and the second baffle are in a transition position;

[0810] Figure 8f A schematic structural diagram of Example 8 when the first baffle and the second baffle provided by the present invention are in the flow guiding position;

[0811] Figure 8g A schematic structural diagram of an embodiment 8 of the driving gear provided by the present invention;

[0812] Figure 8h A schematic diagram of the assembly structure of an embodiment 8 of a cabinet-type air-conditioning indoor unit provided by the present invention;

[0813] Figure 8i A schematic diagram of the exploded structure of an embodiment 8 of a cabinet-type air-conditioning indoor unit provided by the present invention;

[0814] Figure 8j A schematic diagram of the internal structure of an embodiment 8 of a cabinet-type air-conditioning indoor unit provided by the present invention;

[0815] Figure 8k , Figure 8l and Figure 8m A schematic diagram of the assembly structure of Example 8 of the air duct assembly (without the upper auxiliary air duct and the lower auxiliary air duct) provided by the present invention;

[0816] Figure 8n A schematic structural diagram of Embodiment 8 when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0817] Figure 8o A schematic structural diagram of Embodiment 8 when the cabinet air conditioner indoor unit provided by the present invention is in a downward air outlet mode;

[0818] Figure 9a A schematic diagram of the assembly structure of a duct assembly embodiment 9 provided by the present invention;

[0819] Figure 9b A schematic diagram of the exploded structure of an air duct assembly embodiment 9 provided by the present invention;

[0820] Figure 9c A schematic cross-sectional view of a 9th embodiment of the air duct assembly provided by the present invention;

[0821] Figure 9d A schematic diagram of Example 9 of the air flow path when the air duct assembly provided by the present invention is in a strong upward air outlet mode;

[0822] Figure 9e A schematic diagram of Example 9 of the air flow path when the air duct assembly provided by the present invention is in a strong downward air outlet mode;

[0823] Figure 9fSchematic diagram of Embodiment 9 of the air flow path when the air duct assembly provided by the present invention is in the up-and-down simultaneous air outlet mode;

[0824] Figure 9g and Figure 9h Schematic diagram of the assembly structure of Embodiment 9 of the air duct assembly and the indoor heat exchanger provided by the present invention;

[0825] Figure 9i Schematic diagram of the structure of Embodiment 9 of the cabinet air conditioner indoor unit provided by the present invention;

[0826] Figure 10a Schematic diagram of the assembly structure of Embodiment 10 of the cabinet air conditioner indoor unit provided by the present invention;

[0827] Figure 10b Exploded structure diagram of Embodiment 10 of the cabinet air conditioner indoor unit provided by the present invention;

[0828] Figure 10c Schematic diagram of the assembly structure of Embodiment 10 of the indoor heat exchanger and the air duct assembly provided by the present invention;

[0829] Figure 10d Exploded structure diagram of Embodiment 10 of the indoor heat exchanger and the air duct assembly provided by the present invention;

[0830] Figure 10e Schematic diagram of Embodiment 10 of the air flow path when the cabinet air conditioner indoor unit provided by the present invention is in the upper air outlet mode;

[0831] Figure 10f Schematic diagram of Embodiment 10 of the air flow path when the cabinet air conditioner indoor unit provided by the present invention is in the lower air outlet mode;

[0832] Figure 10g Schematic diagram of the structure of Embodiment 10 of the air guide assembly provided by the present invention;

[0833] Figure 11a Schematic diagram of the overall structure of Embodiment 11 of the cabinet air conditioner indoor unit provided by the present invention;

[0834] Figure 11b Exploded structure diagram of the overall structure of Embodiment 11 of the cabinet air conditioner indoor unit provided by the present invention;

[0835] Figure 11c The first main view sectional structure diagram of Embodiment 11 of the cabinet air conditioner indoor unit provided by the present invention. In the figure, the air conditioner takes in air from the lower air inlet and discharges air from the upper air outlet;

[0836] Figure 11d The second main view sectional structure diagram of Embodiment 11 of the cabinet air conditioner indoor unit provided by the present invention. In the figure, the air conditioner takes in air from the upper air inlet and discharges air from the lower air outlet;

[0837] Figure 11eSchematic left - sectional view of the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0838] Figure 11f Schematic structure diagram of the air duct housing and the fan assembly after assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0839] Figure 11g Schematic structure diagram of the air duct housing, the fan assembly and the heat exchanger assembly after assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0840] Figure 11h Three - dimensional structure diagram of the heat exchanger assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0841] Figure 11i Front - view structure diagram of the heat exchanger assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0842] Figure 11j Side - sectional structure diagram of the heat exchanger assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0843] Figure 11k Composition structure diagram of the upper air - inlet movement mechanism in the indoor unit of the cabinet - type air conditioner according to Embodiment 11 of the present invention;

[0844] Figure 12a Front - view structure diagram of the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0845] Figure 12b Side - view structure diagram of the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0846] Figure 12c Exploded structure diagram of the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0847] Figure 12d Longitudinal - sectional structure diagram of the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0848] Figure 12e Cross - sectional structure diagram of the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0849] Figure 12f Cooperation structure diagram of the heat exchanger assembly with the air duct assembly and the housing in the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0850] Figure 12g Three - dimensional structure diagram of the heat exchanger assembly in the indoor unit of the cabinet - type air conditioner according to Embodiment 12 of the present invention;

[0851] Figure 12hIt is a three-dimensional structure schematic diagram of the main air duct assembly in Embodiment 12 of the indoor unit of the cabinet air conditioner of the present invention;

[0852] Figure 12i It is a longitudinal sectional structure schematic diagram of the main air duct assembly in Embodiment 12 of the indoor unit of the cabinet air conditioner of the present invention;

[0853] Figure 13a It is a front view of the indoor unit of the cabinet air conditioner shown according to an exemplary embodiment;

[0854] Figure 13b It is a distribution diagram of the upper air inlet and the lower air inlet shown according to an exemplary embodiment;

[0855] Figure 13c It is an exploded view of the indoor unit of the cabinet air conditioner shown according to an exemplary embodiment;

[0856] Figure 13d It is an internal structure diagram of the indoor unit of the cabinet air conditioner shown according to an exemplary embodiment;

[0857] Figure 13e It is a structure diagram of the installation frame shown according to an exemplary embodiment;

[0858] Figure 13f It is a structure diagram of the partition shown according to an exemplary embodiment;

[0859] Figure 13g It is a wind direction flow path diagram when the indoor unit of the cabinet air conditioner is in the upper and lower simultaneous air outlet mode shown according to an exemplary embodiment;

[0860] Figure 13h It is a wind direction flow path diagram when the indoor unit of the cabinet air conditioner is in the single upper air outlet mode shown according to an exemplary embodiment;

[0861] Figure 13i It is a wind direction flow path diagram when the indoor unit of the cabinet air conditioner is in the single lower air outlet mode shown according to an exemplary embodiment;

[0862] Figure 13j It is a control flow chart of the air conditioner shown according to an exemplary embodiment;

[0863] Figure 14a It is an assembly structure schematic diagram of Embodiment 14 of the indoor unit of the cabinet air conditioner provided by the present invention;

[0864] Figure 14b It is an exploded structure schematic diagram of Embodiment 14 of the indoor unit of the cabinet air conditioner provided by the present invention;

[0865] Figure 14c It is an internal structure schematic diagram of Embodiment 14 of the indoor unit of the cabinet air conditioner provided by the present invention;

[0866] Figure 14d , Figure 14e and Figure 14f are the schematic assembly structure diagrams of Embodiment 14 of the air duct assembly (without upper and lower auxiliary air ducts) provided by the present invention;

[0867] Figure 14g is the schematic structure diagram of Embodiment 14 of the air duct assembly provided by the present invention when the upper air blade cavity and the lower air blade cavity are communicated;

[0868] Figure 14h is the schematic structure diagram of Embodiment 14 of the air duct assembly provided by the present invention when the upper air blade cavity and the lower air blade cavity are not communicated;

[0869] Figure 14i is the schematic structure diagram of Embodiment 14 of the cabinet air conditioner indoor unit provided by the present invention when it is in the lower air inlet and upper conventional air outlet mode;

[0870] Figure 14j is the schematic structure diagram of Embodiment 14 of the cabinet air conditioner indoor unit provided by the present invention when it is in the lower air inlet and upper strong air outlet mode;

[0871] Figure 14k is the schematic structure diagram of the cabinet air conditioner indoor unit provided by the present invention when it is in the upper air inlet and lower conventional air outlet mode;

[0872] Figure 14l is the schematic structure diagram of Embodiment 14 of the cabinet air conditioner indoor unit provided by the present invention when it is in the upper air inlet and lower strong air outlet mode;

[0873] Figure 14m is the schematic structure diagram of Embodiment 14 of the cabinet air conditioner indoor unit provided by the present invention when it is in the upper and lower simultaneous air outlet mode;

[0874] Figure 15a is the schematic assembly structure diagram of Embodiment 15 of the cabinet air conditioner indoor unit provided by the present invention;

[0875] Figure 15b is the schematic exploded structure diagram of Embodiment 15 of the cabinet air conditioner indoor unit provided by the present invention;

[0876] Figure 15c is the schematic internal structure diagram of Embodiment 15 of the cabinet air conditioner indoor unit provided by the present invention;

[0877] Figure 15d and Figure 15e are the schematic assembly structure diagrams of Embodiment 15 of the air duct assembly (without upper and lower auxiliary air ducts) provided by the present invention;

[0878] Figure 15f is the schematic assembly structure diagram of Embodiment 15 of the air duct assembly (without upper and lower auxiliary air ducts) and the indoor heat exchanger provided by the present invention;

[0879] Figure 15g Schematic diagram of the structure of Embodiment 15 when the floor-standing air conditioner indoor unit provided by the present invention is in the lower-air-inlet and upper-air-outlet mode;

[0880] Figure 15h Schematic diagram of the structure of Embodiment 15 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper-air-inlet and lower-air-outlet mode;

[0881] Figure 16a Schematic diagram of the assembled structure of Embodiment 16 of the floor-standing air conditioner indoor unit provided by the present invention;

[0882] Figure 16b Schematic diagram of the exploded structure of Embodiment 16 of the floor-standing air conditioner indoor unit provided by the present invention;

[0883] Figure 16c Schematic diagram of the internal structure of Embodiment 16 of the floor-standing air conditioner indoor unit provided by the present invention;

[0884] Figure 16d Schematic diagram of the structure of Embodiment 16 when the floor-standing air conditioner indoor unit provided by the present invention is in the lower-air-inlet and upper-strong-air-outlet mode;

[0885] Figure 16e Schematic diagram of the structure of Embodiment 16 when the floor-standing air conditioner indoor unit provided by the present invention is in the lower-air-inlet and upper-conventional-air-outlet mode;

[0886] Figure 16f Schematic diagram of the structure of Embodiment 16 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper-air-inlet and lower-strong-air-outlet mode;

[0887] Figure 16g Schematic diagram of the structure of Embodiment 16 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper-air-inlet and lower-conventional-air-outlet mode;

[0888] Figure 16h Schematic diagram of the flow of Embodiment 16 of the control method of the floor-standing air conditioner indoor unit provided by the present invention;

[0889] Figure 17a Schematic diagram of the external structure of Embodiment 17 of the floor-standing air conditioner indoor unit provided by the present invention;

[0890] Figure 17b Schematic diagram of the internal structure of Embodiment 17 of the floor-standing air conditioner indoor unit provided by the present invention;

[0891] Figure 17c Schematic diagram of the structure of Embodiment 17 when the floor-standing air conditioner indoor unit provided by the present invention is in the first lower-air-inlet and upper-air-outlet mode;

[0892] Figure 17d Schematic diagram of the structure of Embodiment 17 when the floor-standing air conditioner indoor unit provided by the present invention is in the first upper-air-inlet and lower-air-outlet mode;

[0893] Figure 18a is a schematic diagram of a floor-standing air conditioner indoor unit shown according to an exemplary embodiment;

[0894] Figure 18b is an internal structure diagram of a floor-standing air conditioner indoor unit shown according to an exemplary embodiment;

[0895] Figure 18c is an air flow path diagram of a floor-standing air conditioner indoor unit in the cooling mode shown according to an exemplary embodiment;

[0896] Figure 18d is an air flow path diagram of a floor-standing air conditioner indoor unit in the heating mode shown according to an exemplary embodiment;

[0897] Figure 18e is a control flow chart of an air conditioner shown according to an exemplary embodiment;

[0898] Figure 19a is a schematic assembly structure diagram of Embodiment 19 of the floor-standing air conditioner indoor unit provided by the present invention;

[0899] Figure 19b is a schematic exploded structure diagram of Embodiment 19 of the floor-standing air conditioner indoor unit provided by the present invention;

[0900] Figure 19c is a schematic diagram of Embodiment 19 of the lower air inlet and upper air outlet flow path of the floor-standing air conditioner indoor unit provided by the present invention;

[0901] Figure 19d is a schematic diagram of Embodiment 19 of the upper air inlet and lower air outlet flow path of the floor-standing air conditioner indoor unit provided by the present invention;

[0902] Figure 20a is a schematic assembly structure diagram of Embodiment 20 of the floor-standing air conditioner indoor unit provided by the present invention;

[0903] Figure 20b is a schematic exploded structure diagram of Embodiment 20 of the floor-standing air conditioner indoor unit provided by the present invention;

[0904] Figure 20c is a schematic internal structure diagram of Embodiment 20 of the floor-standing air conditioner indoor unit provided by the present invention;

[0905] Figure 20d and Figure 20e is a schematic assembly structure diagram of Embodiment 20 of the air duct assembly (without upper and lower auxiliary air ducts) provided by the present invention;

[0906] Figure 20f is a schematic assembly structure diagram of Embodiment 20 of the air duct assembly (without upper and lower auxiliary air ducts) and the indoor heat exchanger provided by the present invention;

[0907] Figure 20g Schematic diagram of the structure of Embodiment 20 when the floor-standing air conditioner indoor unit provided by the present invention is in the lower air inlet and upper air outlet mode;

[0908] Figure 20h Schematic diagram of the structure of Embodiment 20 when the floor-standing air conditioner indoor unit provided by the present invention is in the upper air inlet and lower air outlet mode;

[0909] Figure 21a Front view structural schematic diagram of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention;

[0910] Figure 21b Side view structural schematic diagram of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention;

[0911] Figure 21c Exploded structural schematic diagram of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention;

[0912] Figure 21d Schematic diagram of the structure when the air conditioner of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention operates with single upper air outlet;

[0913] Figure 21e Schematic diagram of the structure when the air conditioner of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention operates with single lower air outlet;

[0914] Figure 21f Schematic diagram of the structure when the air conditioner of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention operates with upper and lower bidirectional air outlet;

[0915] Figure 21g Schematic diagram of the structure when the heat exchanger assembly and the housing of Embodiment 21 of the floor-standing air conditioner indoor unit of the present invention are cooperated, and the heat exchanger components on the right side are hidden in the figure;

[0916] Figure 21h Cross-sectional top view structural schematic diagram of Embodiment 21 of the floor-standing air conditioner i...

Claims

1. A cabinet-type air conditioner indoor unit, characterized in that, It includes a housing and an air duct assembly. The housing is formed with an upper air inlet and a lower air outlet; the air duct assembly is disposed inside the housing and the air duct assembly is formed with an upper air duct communicating with the upper air inlet and a lower air duct communicating with the lower air outlet, and air outlet can be realized at the upper air inlet and / or the lower air outlet.

2. The indoor unit of the cabinet air conditioner according to claim 1, characterized in that, The housing encloses a housing cavity, and the upper part of the housing is formed with the upper air inlet, and the lower part of the housing is formed with the lower air outlet; the air duct assembly is disposed inside the housing cavity and the air duct assembly is further formed with a power fan cavity, and the upper air duct, the power fan cavity and the lower air duct are arranged in sequence from top to bottom; the upper air duct communicates with the room through the upper air inlet, the lower air duct communicates with the room through the lower air outlet, and the power fan cavity communicates with the housing cavity through a fan cavity inlet; the upper air duct can be selectively communicated with the power fan cavity or the housing cavity; the lower air duct can be selectively communicated with the power fan cavity or the housing cavity; When the upper air duct communicates with the power fan cavity and the lower air duct communicates with the housing cavity, the indoor unit of the cabinet air conditioner can form an upper air outlet main flow path with air inlet from the lower air outlet and air outlet from the upper air inlet; When the upper air duct communicates with the housing cavity and the lower air duct communicates with the power fan cavity, the indoor unit of the cabinet air conditioner can form a lower air outlet main flow path with air inlet from the upper air inlet and air outlet from the lower air outlet.

3. The cabinet-type air conditioner indoor unit according to claim 2, characterized in that, The upper part of the housing is further formed with an upper auxiliary air inlet, the upper air inlet and the upper auxiliary air inlet are arranged front and back relatively and the upper auxiliary air inlet can be selectively opened or closed; the lower part of the housing is further formed with a lower auxiliary air inlet, the lower air outlet and the lower auxiliary air inlet are arranged front and back relatively and the lower auxiliary air inlet can be selectively opened or closed; the upper part of the housing cavity communicates with the room through the upper auxiliary air inlet, and the lower part of the housing cavity communicates with the room through the lower auxiliary air inlet; When the upper auxiliary air inlet is closed and the lower auxiliary air inlet is opened, the indoor unit of the cabinet air conditioner can form a lower auxiliary air inlet flow path with auxiliary air inlet from the lower auxiliary air inlet; When the upper auxiliary air inlet is opened and the lower auxiliary air inlet is closed, the indoor unit of the cabinet air conditioner can form an upper auxiliary air inlet flow path with auxiliary air inlet from the upper auxiliary air inlet; When both the upper auxiliary air inlet and the lower auxiliary air inlet are opened, the indoor unit of the cabinet air conditioner can form an upper and lower simultaneous auxiliary air inlet flow path with simultaneous auxiliary air inlet from the upper auxiliary air inlet and the lower auxiliary air inlet.

4. The cabinet-type air conditioner indoor unit according to claim 2 or 3, characterized in that, The lower part of the upper air duct is formed with an A1 ventilation opening and an A2 ventilation opening; a first upper wind blocking structure is movably arranged between the A1 ventilation opening and the A2 ventilation opening, the first upper wind blocking structure has a first working position and a second working position, when the first upper wind blocking structure is in the first working position, the first upper wind blocking structure opens the A1 ventilation opening and closes the A2 ventilation opening at the same time, so that the upper air duct communicates with the housing cavity and the upper air duct does not communicate with the power fan cavity; when the first upper wind blocking structure is in the second working position, the first upper wind blocking structure closes the A1 ventilation opening and opens the A2 ventilation opening at the same time, so that the upper air duct does not communicate with the housing cavity and the upper air duct communicates with the power fan cavity; An upper portion of the lower air duct is formed with a B1 ventilation opening and a B2 ventilation opening; a first lower air baffle structure is movably disposed between the B1 ventilation opening and the B2 ventilation opening. The first lower air baffle structure has a third working position and a fourth working position. When the first lower air baffle structure is in the third working position, the first lower air baffle structure opens the B1 ventilation opening and closes the B2 ventilation opening, so that the lower air duct communicates with the housing cavity and the lower air duct does not communicate with the power fan blade cavity; when the first lower air baffle structure is in the fourth working position, the first lower air baffle structure closes the B1 ventilation opening and opens the B2 ventilation opening, so that the lower air duct does not communicate with the housing cavity and the lower air duct communicates with the power fan blade cavity.

5. The indoor cabinet air conditioner according to claim 4, characterized in that, There are two power fan blade cavities. The two power fan blade cavities include an upper fan blade cavity and a lower fan blade cavity which are arranged in sequence from top to bottom; an upper fan blade is rotatably disposed in the upper fan blade cavity, and the upper fan blade cavity is formed with an upper fan blade cavity inlet and an upper fan blade cavity outlet; the upper fan blade cavity inlet communicates the upper fan blade cavity with the housing cavity, and the upper fan blade cavity outlet communicates with the A2 ventilation opening; A lower fan blade is rotatably disposed in the lower fan blade cavity, and the lower fan blade cavity is formed with a lower fan blade cavity inlet and a lower fan blade cavity outlet; the lower fan blade cavity inlet communicates the lower fan blade cavity with the housing cavity, and the lower fan blade cavity outlet communicates with the B2 ventilation opening; When the first upper air baffle structure is in the second working position and the first lower air baffle structure is in the third working position, the upper fan blade rotates and the lower fan blade does not rotate, and indoor air can flow through the upper air outlet main flow path; When the first upper air baffle structure is in the first working position and the first lower air baffle structure is in the fourth working position, the upper fan blade does not rotate and the lower fan blade rotates, and indoor air can flow through the lower air outlet main flow path.

6. The indoor cabinet air conditioner according to claim 4, characterized in that, There is one power fan blade cavity and the power fan blade cavity is an intermediate fan blade cavity; an intermediate fan blade is rotatably disposed in the intermediate fan blade cavity, and the intermediate fan blade cavity is formed with an intermediate fan blade cavity inlet, an intermediate fan blade cavity upper outlet and an intermediate fan blade cavity lower outlet; the intermediate fan blade cavity inlet communicates the intermediate fan blade cavity with the housing cavity, the intermediate fan blade cavity upper outlet communicates with the A2 ventilation opening, and the intermediate fan blade cavity lower outlet communicates with the B2 ventilation opening; When the first upper air baffle structure is in the second working position and the first lower air baffle structure is in the third working position, the intermediate fan blade rotates, and indoor air can flow through the upper air outlet main flow path; When the first upper air baffle structure is in the first working position and the first lower air baffle structure is in the fourth working position, the intermediate fan blade rotates, and indoor air can flow through the lower air outlet main flow path.

7. The cabinet-type air conditioner indoor unit according to claim 4, characterized in that, There are two power fan blade cavities. The two power fan blade cavities include an upper fan blade cavity and a lower fan blade cavity which are arranged in sequence from top to bottom; an upper fan blade is rotatably disposed in the upper fan blade cavity, and the upper fan blade cavity is formed with an upper fan blade cavity inlet, an upper fan blade cavity C1 outlet, an upper fan blade cavity C2 outlet and an upper fan blade cavity C3 outlet; the upper fan blade cavity inlet communicates the upper fan blade cavity with the housing cavity, and the upper fan blade cavity C1 outlet communicates with the A2 ventilation opening; A lower wind blade is rotatably disposed in the lower wind blade cavity, and the lower wind blade cavity is formed with a lower wind blade cavity inlet, a lower wind blade cavity D1 outlet, a lower wind blade cavity D2 outlet, and a lower wind blade cavity D3 outlet; the lower wind blade cavity inlet communicates with the lower wind blade cavity and the housing cavity, and the lower wind blade cavity D1 outlet communicates with the B2 vent. The air duct assembly is further formed with an upper auxiliary air duct, a middle auxiliary air duct, and a lower auxiliary air duct arranged in sequence from top to bottom; the upper auxiliary air duct communicates with the upper air inlet and the upper wind blade cavity C2 outlet, the lower auxiliary air duct communicates with the lower air inlet and the lower wind blade cavity D2 outlet, and the middle auxiliary air duct communicates with the upper wind blade cavity C3 outlet and the lower wind blade cavity D3 outlet.

8. The cabinet-type air conditioner indoor unit according to claim 4, wherein, There are two power wind blade cavities, and the two power wind blade cavities include an upper wind blade cavity and a lower wind blade cavity arranged in sequence from top to bottom; an upper wind blade is rotatably disposed in the upper wind blade cavity, and the upper wind blade cavity is formed with an upper wind blade cavity inlet, an upper wind blade cavity C1 outlet, and an upper wind blade cavity C3 outlet; the upper wind blade cavity inlet communicates with the upper wind blade cavity and the housing cavity, the upper wind blade cavity C1 outlet communicates with the A2 vent, and a lower auxiliary air duct is formed between the upper wind blade cavity C3 outlet and the lower air inlet; a fourth upper wind blocking structure is movably disposed at the upper wind blade cavity C3 outlet, and the fourth upper wind blocking structure can open or close the upper wind blade cavity C3 outlet. A lower wind blade is rotatably disposed in the lower wind blade cavity, and the lower wind blade cavity is formed with a lower wind blade cavity inlet, a lower wind blade cavity D1 outlet, and a lower wind blade cavity D3 outlet. The lower wind blade cavity inlet communicates with the lower wind blade cavity and the housing cavity, the lower wind blade cavity D1 outlet communicates with the B2 vent, and an upper auxiliary air duct is formed between the lower wind blade cavity D3 outlet and the upper air inlet; a fourth lower wind blocking structure is movably disposed at the lower wind blade cavity D3 outlet, and the fourth lower wind blocking structure can open or close the lower wind blade cavity D3 outlet.

9. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The housing surrounds to form a housing cavity, and an upper air inlet is formed in the upper part of the housing, and a lower air inlet is formed in the lower part of the housing; both the upper air inlet and the lower air inlet communicate with the interior of the room. The air duct assembly is disposed in the housing cavity, and the air duct assembly is further formed with an upper wind blade cavity and a lower wind blade cavity; the upper air duct, the upper wind blade cavity, the lower wind blade cavity, and the lower air duct are arranged in sequence from top to bottom; the upper wind blade cavity includes an upper wind blade cavity outlet and an upper wind blade cavity inlet; the lower wind blade cavity includes a lower wind blade cavity inlet and a lower wind blade cavity outlet; the upper wind blade cavity inlet communicates with the upper wind blade cavity and the housing cavity, and the lower wind blade cavity inlet communicates with the lower wind blade cavity and the housing cavity. The upper air duct communicates with the upper air inlet and the outlet of the upper air blade cavity. An upper air return opening is formed on the side wall of the upper air duct. The upper air return opening communicates the upper air duct with the housing cavity, and two upper air blocking structures are movably arranged at the upper air return opening. The two upper air blocking structures have a first working position and a second working position. When the two upper air blocking structures are in the first working position, the upper air return opening is in a closed state and the upper air duct is communicated with the outlet of the upper air blade cavity. When the two upper air blocking structures are in the second working position, the upper air return opening is in an open state, the upper air duct is disconnected from the outlet of the upper air blade cavity, and an upper air guiding duct is formed between the two upper air blocking structures. The lower air duct communicates with the lower air inlet and the outlet of the lower air blade cavity. A lower air return opening is formed on the side wall of the lower air duct. The lower air return opening communicates the lower air duct with the housing cavity, and two lower air blocking structures are movably arranged at the lower air return opening. The two lower air blocking structures have a third working position and a fourth working position. When the two lower air blocking structures are in the third working position, the lower air return opening is in a closed state and the lower air duct is communicated with the outlet of the lower air blade cavity. When the two lower air blocking structures are in the fourth working position, the lower air return opening is in an open state, the lower air duct is disconnected from the outlet of the lower air blade cavity, and a lower air guiding duct is formed between the two lower air blocking structures.

10. The indoor unit of a cabinet air conditioner according to claim 1, characterized in that, The upper air duct and / or the lower air duct are / is provided with a first ventilation opening and a second ventilation opening, and the first ventilation opening and the second ventilation opening are oppositely arranged along the extending direction of the upper air duct or the lower air duct. A third ventilation opening is formed on the side wall of the air duct between the first ventilation opening and the second ventilation opening. The air duct assembly includes an air duct control component, and the air duct control component is arranged in the upper air duct and / or the lower air duct and controls the first ventilation opening and the second ventilation opening and the first ventilation opening and the third ventilation opening to be selectively communicated or disconnected. The air duct control component includes a baffle assembly and a driving assembly. The baffle assembly includes a first baffle and a second baffle, and the first baffle and the second baffle are arranged together in a foldable and extendable manner. Wherein: The first baffle has an A1 end and a B1 end which are oppositely arranged, and the second baffle has an A2 end and a B2 end which are oppositely arranged. The A1 end, the B1 end and the A2 end are all hinged ends. The A1 end is hinged on the side wall of the upper air duct and / or the lower air duct, and the B1 end and the A2 end are hinged together. The B2 end is a free end. The driving assembly includes a first driving assembly and a second driving assembly. Wherein: The first driving assembly is drivingly connected to the first baffle and is used for driving the whole baffle assembly to rotate around the hinge axis of the A1 end. The second driving assembly is drivingly connected to the second baffle and is used for driving the second baffle to rotate around the hinge axis of the B1 end and the A2 end. When the first baffle and the second baffle are in a folded state, the third ventilation opening can be blocked to communicate the first ventilation opening and the second ventilation opening. When the first baffle and the second baffle are in an extended state, the first ventilation opening and the second ventilation opening can be disconnected, and the first ventilation opening and the third ventilation opening can be communicated.

11. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The housing is enclosed to form a housing cavity, and an upper air inlet is formed at the upper part of the housing, and a lower air outlet is formed at the lower part of the housing; The air duct assembly is arranged in the housing cavity, and the air duct assembly further forms an upper fan blade cavity and a lower fan blade cavity. The upper air duct, the upper fan blade cavity, the lower fan blade cavity, and the lower air duct are arranged in sequence from top to bottom; An upper fan blade is rotatably arranged in the upper fan blade cavity, and an A1 air outlet and a B1 air outlet are formed in the upper fan blade cavity; A lower fan blade is rotatably arranged in the lower fan blade cavity, and an A2 air outlet and a B2 air outlet are formed in the lower fan blade cavity; The upper air duct communicates with the upper air inlet and the A1 air outlet; The lower air duct communicates with the lower air outlet and the A2 air outlet; A transition cavity is formed between the housing and the air duct assembly; The B1 air outlet communicates the upper fan blade cavity and the transition cavity, and the B2 air outlet communicates the lower fan blade cavity and the transition cavity; The cabinet-type air conditioner indoor unit is provided with an upper air outlet mode and a lower air outlet mode. When the cabinet-type air conditioner indoor unit is in the upper air outlet mode, the upper fan blade rotates, so that indoor air enters the lower air duct through the lower air outlet, and then is discharged through the upper air inlet; When the cabinet-type air conditioner indoor unit is in the lower air outlet mode, the lower fan blade rotates, so that indoor air enters the upper air duct through the upper air inlet, and then is discharged through the lower air outlet.

12. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The air duct assembly includes an air duct housing, and the air duct housing includes an upper air duct housing and a lower air duct housing. The upper air duct housing forms the upper air duct, and the lower air duct housing forms the lower air duct; The top of the upper air duct housing has an upper air duct connection port one communicating with the upper air inlet, and the bottom side has an upper air duct connection port two. The bottom of the lower air duct housing has a lower air duct connection port one communicating with the lower air outlet, and the top side has a lower air duct connection port two; The indoor unit further includes a fan assembly. The fan assembly includes an upper fan assembly and a lower fan assembly that work independently. The air supply directions of the upper fan assembly and the lower fan assembly are opposite. The upper fan assembly is placed inside the upper air duct housing and located at the position of the upper air duct connection port two, and the lower fan assembly is placed inside the lower air duct housing and located at the position of the lower air duct connection port two; A heat exchanger assembly, the heat exchanger assembly includes a heat exchanger housing and a heat exchanger provided in the heat exchanger housing; Wherein the heat exchange housing covers the side part of the air duct housing, and a ventilation channel is defined between the heat exchange housing and the side part of the air duct housing. The ventilation channel includes an upper ventilation channel and a lower ventilation channel separated by the heat exchanger. The upper ventilation channel communicates with the upper air duct connection port two, and the lower ventilation channel communicates with the lower air duct connection port two.

13. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, An air inlet is provided at the rear side or the left and right sides of the housing; A body housing channel is defined between the outside of the air duct assembly and the housing. The upper air duct and the lower air duct are arranged up and down and are independent of each other inside. The body housing channel communicates with the air inlet. The upper end of the upper air duct communicates with the upper air inlet, and the lower end of the lower air duct communicates with the lower air outlet; A fan, the fan includes an upper fan provided in the upper air duct and a lower fan provided in the lower air duct. The upper fan has an upper air inlet communicating with the body housing channel, and the lower fan has a lower air inlet communicating with the body housing channel; The heat exchanger assembly is disposed in the channel of the fuselage housing and is opposite to the upper air inlet of the upper blower and the lower air inlet of the lower blower, and is used for heat exchange of the air flow before entering the upper blower and the air flow before entering the lower blower.

14. The cabinet-type air conditioner indoor unit according to claim 1, wherein, The housing encloses a housing cavity, and an upper air outlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing. Both the upper air outlet and the lower air outlet communicate with the room; the air duct assembly is disposed in the housing cavity; The air duct assembly further forms an upper impeller cavity and a lower impeller cavity. The upper air duct, the upper impeller cavity, the lower impeller cavity and the lower air duct are arranged in sequence from top to bottom; the upper impeller cavity forms an upper impeller cavity outlet, an upper impeller cavity inlet and an upper communication port; the upper air duct communicates the upper air outlet and the upper impeller cavity outlet, and an upper air return port is formed on the side wall of the upper air duct; the lower impeller cavity forms a lower impeller cavity outlet, a lower impeller cavity inlet and a lower communication port; the lower air duct communicates the lower air outlet and the lower impeller cavity outlet, and a lower air return port is formed on the side wall of the lower air duct; a communication channel is formed between the upper communication port and the lower communication port; the upper air return port communicates the upper air duct and the housing cavity, and the lower air return port communicates the lower air duct and the housing cavity; The upper impeller cavity inlet communicates the upper impeller cavity and the housing cavity, and the lower impeller cavity inlet communicates the lower impeller cavity and the housing cavity; A first upper wind blocking structure is movably disposed at the upper air return port. The first upper wind blocking structure can open the upper air return port while disconnecting the upper air duct and the upper impeller cavity outlet, or close the upper air return port while connecting the upper air duct and the upper impeller cavity outlet; a second upper wind blocking structure is movably disposed at the upper communication port. The second upper wind blocking structure can open or close the upper communication port; A first lower wind blocking structure is movably disposed at the lower air return port. The first lower wind blocking structure can open the lower air return port while disconnecting the lower air duct and the lower impeller cavity outlet, or close the lower air return port while connecting the lower air duct and the lower impeller cavity outlet; a second lower wind blocking structure is movably disposed at the lower communication port. The second lower wind blocking structure can open or close the lower communication port.

15. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The upper part of the housing forms the upper air outlet, and the lower part of the housing forms the lower air outlet; both the upper air outlet and the lower air outlet communicate with the room; The air duct assembly is disposed inside the housing, and the air duct assembly further forms an upper impeller cavity and a lower impeller cavity. The upper air duct, the upper impeller cavity, the lower impeller cavity and the lower air duct are arranged in sequence from top to bottom; the upper air duct includes an upper auxiliary air duct and an upper main air duct. The upper air outlet, the upper auxiliary air duct, the upper main air duct and the upper impeller cavity are sequentially connected, and an upper air return port is formed on the side wall of the upper auxiliary air duct; the lower air duct communicates the lower impeller cavity and the lower air outlet, and a first lower air return port is formed on the side wall of the lower air duct; A communication cavity is formed inside the housing between the upper air return port and the first lower air return port; the upper air return port communicates the upper auxiliary air duct and the communication cavity, and the upper impeller cavity and the communication cavity are connected through the upper impeller cavity inlet; the first lower air return port communicates the lower air duct and the communication cavity, and the lower impeller cavity and the communication cavity are connected through the lower impeller cavity inlet; When the upper air return opening is controlled to be closed and the upper air outlet is completely or partially communicated with the upper main air duct, and the first lower air return opening is controlled to be opened and the lower air duct and the lower air blade cavity are controlled to be disconnected, the floor-standing air conditioner indoor unit can form a downward air inlet and upward air outlet air flow path; When the upper air return opening is controlled to be opened and the upper air outlet is disconnected from the upper main air duct, and the first lower air return opening is controlled to be closed and the lower air duct and the lower air blade cavity are controlled to be communicated, the floor-standing air conditioner indoor unit can form an upward air inlet and downward air outlet air flow path.

16. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The housing encloses a housing cavity, and the housing includes a front housing side wall. An upper air outlet is formed on the upper side of the front housing side wall, and a lower air outlet is formed on the lower side of the front housing side wall; The upper air duct and the lower air duct are arranged in the housing cavity with vertical and horizontal staggering. The upper end of the upper air duct is communicated with the upper air outlet, and the lower end of the upper air duct is communicated with the housing cavity; the upper end of the lower air duct is communicated with the housing cavity, and the lower end of the lower air duct is communicated with the lower air outlet; The floor-standing air conditioner indoor unit further includes an indoor heat exchanger, and the indoor heat exchanger is arranged between the upper air duct and the lower air duct; the indoor heat exchanger can perform heat exchange with the air flowing between the upper air duct and the lower air duct; The floor-standing air conditioner indoor unit is provided with an air inlet and outlet mode, and the air inlet and outlet mode includes a downward air inlet and upward air outlet mode and an upward air inlet and downward air outlet mode; When the floor-standing air conditioner indoor unit is in the downward air inlet and upward air outlet mode, indoor air can enter the lower air duct through the lower air outlet, then enter the upper air duct through the indoor evaporator and be discharged through the upper air outlet; when the floor-standing air conditioner indoor unit is in the upward air inlet and downward air outlet mode, indoor air can enter the upper air duct through the upper air outlet, then enter the lower air duct through the indoor evaporator and be discharged through the lower air outlet.

17. The indoor unit of the cabinet air conditioner according to claim 1, characterized in that, The upper part of the housing is provided with the upper air outlet, and the lower part of the housing is provided with the lower air outlet; the air duct assembly is arranged inside the housing, and the air duct assembly includes an upper air duct component, a lower air duct component, an upper centrifugal fan and a lower centrifugal fan. The upper air duct component includes the upper air duct and an upper fan cavity which are communicated with each other. The upper air duct is communicated with the upper air outlet, and the upper centrifugal fan is arranged in the upper fan cavity. The lower air duct component includes the lower air duct and a lower fan cavity which are communicated with each other. The lower air duct is communicated with the lower air outlet, and the lower centrifugal fan is arranged in the lower fan cavity; The floor-standing air conditioner indoor unit further includes a heat exchange component and a damper component. The heat exchange component is arranged inside the housing. The heat exchange component includes an upper heat exchange part and a lower heat exchange part. An upper heat exchange cavity is defined between the upper heat exchange part and the housing, and the upper air duct component is arranged in the upper heat exchange cavity. A lower heat exchange cavity is defined between the lower heat exchange part and the housing, and the lower air duct component is arranged in the lower heat exchange cavity; The air damper assembly is disposed within the housing and located between the upper heat exchange chamber and the lower heat exchange chamber. The air damper assembly can block the air flow path between the upper heat exchange chamber and the lower heat exchange component when the cabinet-type indoor air conditioner operates in the heating mode, and block the air flow path between the lower heat exchange chamber and the upper heat exchange component when the cabinet-type indoor air conditioner operates in the cooling mode.

18. The indoor unit of the cabinet air conditioner according to claim 1, characterized in that, The upper air duct and the lower air duct are arranged vertically and are offset in the horizontal direction; the upper air duct forms an upper air blade chamber, the upper air blade chamber includes an upper air blade chamber inlet and an upper air blade chamber outlet, and an upper air blade is rotatably arranged within the upper air blade chamber; the lower air duct forms a lower air blade chamber, the lower air blade chamber includes a lower air blade chamber inlet and a lower air blade chamber outlet, and a lower air blade is rotatably arranged within the lower air blade chamber; the air duct assembly includes: An upper connecting housing, which is arranged between the upper air blade chamber inlet and the lower air blade chamber outlet, and an upper connecting cavity is formed inside the upper connecting housing; the upper connecting cavity includes an upper connecting cavity outlet and an upper connecting cavity C1 inlet, the upper connecting cavity outlet is communicated with the upper air blade chamber inlet, and the upper connecting cavity C1 inlet is communicated with the lower air blade chamber outlet; A lower connecting housing, which is arranged between the lower air blade chamber inlet and the upper air blade chamber outlet, and a lower connecting cavity is formed inside the lower connecting housing; the lower connecting cavity includes a lower connecting cavity outlet and a lower connecting cavity D1 inlet, the lower connecting cavity outlet is communicated with the lower air blade chamber inlet, and the lower connecting cavity D1 inlet is communicated with the upper air blade chamber outlet; Both the upper connecting cavity C1 inlet and the lower connecting cavity D1 inlet can be controlled to be opened or closed; when the upper connecting cavity C1 inlet is in the open state and the lower connecting cavity D1 inlet is in the closed state, the air in the lower air blade chamber can enter the upper air blade chamber through the upper connecting cavity; when the upper connecting cavity C1 inlet is in the closed state and the lower connecting cavity D1 inlet is in the open state, the air in the upper air blade chamber can enter the lower air blade chamber through the lower connecting cavity.

19. The cabinet-type air conditioner indoor unit according to claim 1, wherein, The upper part of the housing forms the upper air inlet, and the lower part of the housing forms the lower air inlet; both the upper air inlet and the lower air inlet are communicated with the interior of the room; The air duct assembly is disposed inside the housing and the air duct assembly also forms an air blade chamber, and the upper air duct, the air blade chamber and the lower air duct are arranged in sequence from top to bottom; the air blade chamber includes an air blade chamber upper outlet, an air blade chamber inlet and an air blade chamber lower outlet; the upper air duct communicates the upper air inlet and the air blade chamber upper outlet, and an upper air return opening is formed on the side wall of the upper air duct; the lower air duct communicates the lower air inlet and the air blade chamber lower outlet, and a lower air return opening is formed on the side wall of the lower air duct; A connecting cavity is formed between the housing and the air duct assembly; the upper air return opening communicates the connecting cavity and the upper air duct, the lower air return opening communicates the connecting cavity and the lower air duct, and the air blade chamber inlet communicates the connecting cavity and the air blade chamber; Two upper air blocking structures are movably arranged at the upper air return opening, and the two upper air blocking structures have a first working position and a second working position; When the two upper wind shielding structures are in the first working position, the upper air return opening is in a closed state and the upper air duct is communicated with the upper outlet of the air impeller cavity; when the two upper wind shielding structures are in the second working position, the upper air return opening is in an open state, the upper air duct is not communicated with the upper outlet of the air impeller cavity, and an upper air guiding duct is formed between the two upper wind shielding structures. Two lower wind shielding structures are movably arranged at the lower air return opening. The two lower wind shielding structures have a third working position and a fourth working position. When the two lower wind shielding structures are in the third working position, the lower air return opening is in a closed state and the lower air duct is communicated with the lower outlet of the air impeller cavity; when the two lower wind shielding structures are in the fourth working position, the lower air return opening is in an open state, the lower air duct is not communicated with the lower outlet of the air impeller cavity, and a lower air guiding duct is formed between the two lower wind shielding structures.

20. The indoor cabinet air conditioner according to claim 1, characterized in that, An air inlet is provided at the rear side and / or the left and right sides of the housing. A body housing passage is defined between the outside of the air duct assembly and the housing, and an upper air duct, a blower air duct and a lower air duct which are vertically distributed and sequentially communicated are formed inside. The upper end of the upper air duct is communicated with the upper air outlet, and the lower end of the lower air duct is communicated with the lower air outlet. A blower system is arranged in the blower air duct. The blower system is provided with an air inlet which communicates the body housing passage and the blower air duct. A wind shielding structure, which includes an upper wind shielding structure and a lower wind shielding structure. The upper wind shielding structure is arranged in the upper air duct and is used for controlling the communication state between the upper air duct and the blower air duct. The lower wind shielding structure is arranged in the lower air duct and is used for controlling the communication state between the lower air duct and the blower air duct.

21. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, An air inlet is formed on the rear side wall of the housing, and an air outlet is formed on the front side wall of the housing; an air duct is formed by communicating the upper air duct and the lower air duct, and the air duct communicates the air inlet and the air outlet; the air outlet includes a first air outlet, and the first air outlet includes an upper air outlet area and a lower air outlet area which are arranged oppositely up and down; the first air outlet is the upper air outlet. The cabinet-type indoor air conditioner further includes a blower, and the blower includes an upper blower and a lower blower which are arranged oppositely up and down in the air duct, and the upper blower corresponds to the upper air outlet area, and the lower blower corresponds to the lower air outlet area. The upper blower is one of a cross-flow blower and a centrifugal blower, and the lower blower is the other one of a cross-flow blower and a centrifugal blower.

22. The cabinet-type air conditioner indoor unit according to claim 1, wherein, An upper air outlet is formed at the upper part of the housing, and a lower air outlet is formed at the lower part of the housing; both the upper air outlet and the lower air outlet are communicated with the room. The air duct assembly is arranged inside the housing, and the air duct assembly further forms an air impeller cavity. The upper air duct, the air impeller cavity and the lower air duct are arranged in sequence from top to bottom. The air impeller cavity includes an air impeller cavity inlet, an upper outlet of the air impeller cavity and a lower outlet of the air impeller cavity; the upper air duct communicates the upper air outlet and the upper outlet of the air impeller cavity, and an upper air return opening is formed on the side wall of the upper air duct; the lower air duct communicates the lower air outlet and the lower outlet of the air impeller cavity, and a lower air return opening is formed on the side wall of the lower air duct. A communication cavity is formed between the housing and the air duct assembly; the upper air return opening communicates with the upper air duct and the communication cavity, and the lower air return opening communicates with the lower air duct and the communication cavity; the air impeller cavity inlet communicates with the air impeller cavity and the communication cavity; both the upper air return opening and the lower air return opening can be controlled to be opened or closed; both the upper air duct and the upper outlet of the air impeller cavity and the lower air duct and the lower outlet of the air impeller cavity can be controlled to be communicated or disconnected.

23. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The housing includes a front shell on the user side and a rear shell disposed opposite to the front shell. The front shell is provided with the upper air opening and the lower air opening which are vertically and spaced apart, and the rear shell is provided with an air inlet between the upper air opening and the lower air opening. The air duct assembly includes an air duct housing. The air duct housing includes a main air duct formed with an air inlet end, a first sub-air duct extending obliquely upward and a second sub-air duct extending obliquely downward, which communicate with the main air duct. The first sub-air duct is the upper air duct, and the second sub-air duct is the lower air duct. The first sub-air duct forms a first air outlet end communicating with the upper air opening at its extending end, and the second sub-air duct forms a second air outlet end communicating with the lower air opening at its extending end. A fan assembly, which includes a main axial flow fan, a first auxiliary fan and a second auxiliary fan. The main axial flow fan is disposed at the air inlet end of the main air duct, the first auxiliary fan is disposed at the first air outlet end of the first sub-air duct, and the second auxiliary fan is disposed at the second air outlet end of the second sub-air duct. A wind shielding mechanism, which is disposed in the air duct housing and has a first working position, a second working position and a third working position. Wherein the wind shielding mechanism is designed such that when the wind shielding mechanism is in the first working position, the wind shielding mechanism can connect the main air duct with both the first sub-air duct and the second sub-air duct; when the wind shielding mechanism is in the second working position, the wind shielding mechanism can connect the main air duct with the first sub-air duct while shutting off the connection between the main air duct and the second sub-air duct; when the wind shielding mechanism is in the third working position, the wind shielding mechanism can connect the main air duct with the second sub-air duct while shutting off the connection between the main air duct and the first sub-air duct.

24. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The housing has a front shell on the user side, and the front shell is provided with the upper air opening, the air inlet and the lower air opening which are vertically and spaced apart. The air duct assembly includes an air duct housing. The air duct housing includes a main air duct formed to communicate with the air inlet and a first sub-air duct and a second sub-air duct which communicate with the main air duct and extend in a curved surface. The first sub-air duct is the upper air duct, and the second sub-air duct is the lower air duct. The first sub-air duct forms a first air outlet end communicating with the upper air opening at its extending end, and the second sub-air duct forms a second air outlet end communicating with the lower air opening at its extending end. A fan assembly, which includes a main axial flow fan, a first auxiliary fan and a second auxiliary fan. The main axial flow fan is disposed at the air inlet end of the main air duct, the first auxiliary fan is disposed at the first air outlet end of the first sub-air duct, and the second auxiliary fan is disposed at the second air outlet end of the second sub-air duct. A wind shielding mechanism, which is disposed in the air duct housing and has a first working position, a second working position and a third working position. The windshield mechanism is designed such that when the windshield mechanism is in the first working position, the windshield mechanism can connect the main air duct with both the first auxiliary air duct and the second auxiliary air duct; when the windshield mechanism is in the second working position, the windshield mechanism can connect the main air duct with the first auxiliary air duct while shutting off the connection between the main air duct and the second auxiliary air duct; when the windshield mechanism is in the third working position, the windshield mechanism can connect the main air duct with the second auxiliary air duct while shutting off the connection between the main air duct and the first auxiliary air duct.

25. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, An upper air inlet is formed at the upper part of the housing, and a lower air outlet is formed at the lower part of the housing; an air duct is formed by connecting the upper air duct and the lower air duct. The cabinet-type air conditioner indoor unit further includes a reversing fan, the reversing fan includes a fan housing, and the fan housing is rotatably arranged in the air duct; the fan housing forms a blade cavity communicating with the air duct, and a blade is rotatably arranged in the blade cavity; the fan housing has a first working position and a second working position. When the fan housing is in the first working position, the blade rotates, and indoor air near the upper air inlet can enter the air duct through the upper air inlet and then be discharged through the lower air outlet. When the fan housing is in the second working position, the blade rotates, and indoor air near the lower air outlet can enter the air duct through the lower air outlet and then be discharged through the upper air inlet.

26. The indoor cabinet air conditioner according to claim 1, wherein, An air control structure is provided at the upper part of the cabinet-type air conditioner indoor unit, and the air control structure includes a wind deflector assembly. The wind deflector assembly includes: A first wind deflector, which is rotatably arranged at the upper air inlet for opening or closing the upper air inlet, and the first wind deflector has a first windward plate surface. A second wind deflector, which is rotatably arranged on the first windward plate surface of the first wind deflector, and the second wind deflector has a second windward plate surface. When the upper air inlet is opened by the first wind deflector, the second wind deflector can be controlled to rotate to direct the air flow flowing out from the upper air inlet through the second windward plate surface.

27. The indoor cabinet air conditioner according to claim 1, characterized in that, An air control component is provided at the upper part of the indoor unit, and the air control component includes a frame body and a wind deflector assembly. The frame body encloses the upper air inlet, and the frame body has a first frame edge and a second frame edge arranged on opposite sides of the upper air inlet. The wind deflector assembly includes a first wind deflector and a second wind deflector arranged oppositely on the first frame edge and the second frame edge. The first wind deflector is rotatably arranged on the first frame edge. The second wind deflector is rotatably arranged on the second frame edge. The first wind deflector and the second wind deflector can be controlled to rotate clockwise or counterclockwise around their respective axes. The first wind deflector and the second wind deflector can be controlled to rotate in the same direction and in the opposite direction.

28. The indoor cabinet air conditioner according to claim 1, characterized in that, An air control component is provided at the top of the cabinet-type air conditioner indoor unit, and the air control component includes a frame body and a wind deflector assembly. The frame body encloses the upper air inlet, and the upper air inlet includes a first ventilation opening and a second ventilation opening arranged side by side. The air deflector assembly includes a first air deflector and a first driving mechanism disposed on the frame body and used to drive the first air deflector to move. The first air deflector has a closed state in which the second ventilation opening is closed when driven by the first driving mechanism, and an open state in which it is located above the first ventilation opening and the second ventilation opening is opened; The air deflector assembly further includes a second air deflector rotatably disposed between the first ventilation opening and the second ventilation opening and a second driving mechanism disposed on the frame body and used to drive the second air deflector to rotate. The second air deflector has a closed state in which the first ventilation opening is closed when driven to rotate by the second driving mechanism and an open state in which the first ventilation opening is opened; When both the first air deflector and the second air deflector are in the open state, the first air deflector and the second air deflector form a wind guiding surface for the air flow out of the first ventilation opening.

29. The indoor cabinet air conditioner according to claim 1, wherein, It includes a heat exchanger device, and the heat exchanger device includes a heat exchanger and a mounting frame; the heat exchanger includes a first heat exchanger and a second heat exchanger; the mounting frame includes a first side bracket and a second side bracket oppositely arranged in the first horizontal direction, and an installation cavity is formed between the first side bracket and the second side bracket; the structure of the first side bracket is adapted to the structure of the first heat exchanger, and the first heat exchanger is disposed on the first side bracket; the structure of the second side bracket is adapted to the structure of the second heat exchanger, and the second heat exchanger is disposed on the second side bracket; Both the first heat exchanger and the second heat exchanger are located in the installation cavity, and a receiving space is formed between the first heat exchanger and the second heat exchanger, and air can enter the receiving space through the first heat exchanger and the second heat exchanger.

30. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The air duct assembly is arranged inside the housing along the height direction of the housing. The upper end of the air duct assembly communicates with the upper air outlet, and the lower end of the air duct assembly communicates with the lower air outlet. An airframe housing channel is formed between the outside of the air duct assembly and the housing, and a fan air duct is formed inside; A fan assembly, the fan assembly is disposed in the fan air duct of the air duct assembly, and an air inlet communicating with the airframe housing channel is axially provided; A heat exchanger assembly, the heat exchanger assembly is disposed in the airframe housing channel, the heat exchanger assembly has opposite first heat exchange surface and second heat exchange surface, the first heat exchange surface faces the housing, and the second heat exchange surface faces the air duct assembly; Wherein a first heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the first heat exchange surface facing the housing and the housing, and a second heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the second heat exchange surface facing the air duct assembly and the air duct assembly; Wherein the first heat exchange cavity and the second heat exchange cavity are communicated through the heat exchanger assembly, and the gradual change rules of the first heat exchange cavity and the second heat exchange cavity are opposite.

31. The cabinet-type air conditioner indoor unit according to claim 1, wherein The housing encloses a housing cavity, and an upper air inlet and a lower air outlet are formed in the upper part of the housing; the air duct assembly is arranged in the housing cavity, and the upper air duct and the lower air duct enable the indoor unit of the cabinet air conditioner to intake air from the lower air outlet and exhaust air from the upper air inlet, or intake air from the upper air inlet and exhaust air from the lower air outlet; the air duct assembly forms a fan cavity, and the fan cavity includes a fan cavity inlet. The indoor unit of the cabinet air conditioner further includes a filter assembly and a filter cleaning device; the filter assembly includes a filter screen, and the filter screen is arranged in the housing cavity and close to the fan cavity inlet; the filter cleaning device includes: a drying assembly, which includes a heating element for drying the dust on the filter screen before cleaning the dust. a cleaning assembly, which includes a brush, and the brush is movably arranged on the filter screen frame for cleaning the dust on the filter screen.

32. A control method for an indoor unit of a cabinet air conditioner, characterized in that, The indoor unit of the cabinet air conditioner is the indoor unit of the cabinet air conditioner according to claim 1; the housing encloses a housing cavity, and the upper air inlet and the upper air inlet are formed in the upper part of the housing, and the lower air outlet and the lower air inlet are formed in the lower part of the housing; the air duct assembly is arranged in the housing cavity, and the air duct assembly forms an upper air outlet main flow path for intake air from the lower air outlet and exhaust air from the upper air inlet, a lower air outlet main flow path for intake air from the upper air inlet and exhaust air from the lower air outlet, and an upper and lower simultaneous air outlet main flow path for exhaust air from the upper air inlet and the lower air outlet at the same time; a lower auxiliary air intake flow path for auxiliary air intake from the lower air inlet, an upper auxiliary air intake flow path for auxiliary air intake from the upper air inlet, and an upper and lower simultaneous auxiliary air intake flow path for auxiliary air intake from the upper air inlet and the lower air inlet at the same time are formed between the housing cavity and the air duct assembly; the control method includes: Determine the target operation mode of the indoor unit of the cabinet air conditioner. Compare the current temperature of the indoor air with a first preset temperature. Determine the target main flow path and the target auxiliary air intake flow path according to the target operation mode and the comparison result of the current temperature and the first preset temperature. Wherein, the target operation mode is a heating mode or a cooling mode, and the target main flow path is an upper air outlet main flow path or a lower air outlet main flow path or an upper and lower simultaneous air outlet main flow path; the target auxiliary air intake flow path is a lower auxiliary air intake flow path or an upper auxiliary air intake flow path or an upper and lower simultaneous auxiliary air intake flow path.

33. A control method for an indoor unit of a cabinet air conditioner, characterized in that, The indoor unit of the cabinet air conditioner is the indoor unit of the cabinet air conditioner according to claim 1; a first air duct, a second air duct, a first connecting air duct and a second connecting air duct are arranged in the housing; the first air duct is an upper air duct, and the second air duct is a lower air duct; wherein: The first air duct is provided with a first outer air outlet communicating with the indoor environment where the indoor unit is located and a first inner air outlet communicating with the first connecting air duct and the first air duct; the second air duct is provided with a second outer air outlet communicating with the indoor environment where the indoor unit is located and a second inner air outlet communicating with the second connecting air duct and the second air duct; the first outer air outlet is arranged in the upper part of the housing, and the second outer air outlet is arranged in the lower part of the housing; the first outer air outlet is an upper air inlet, and the second outer air outlet is a lower air outlet. A first air duct is provided with a first fan and a first baffle. The first fan is provided with a first fan air inlet and a first fan air outlet. The first fan air outlet is connected to the first air duct. The first fan air inlet and the first inner air inlet are communicated through a first communicating air duct. The first baffle can be controlled to block the first inner air inlet while opening the first fan air outlet or block the first fan air outlet while opening the first inner air inlet. A second air duct is provided with a second fan and a second baffle. The second fan is provided with a second fan air inlet and a second fan air outlet. The second fan air outlet is connected to the second air duct. The second fan air inlet and the second inner air inlet are communicated through a second communicating air duct. The second baffle can be controlled to block the second inner air inlet while opening the second fan air outlet or block the second fan air outlet while opening the second inner air inlet. When the cabinet-type air conditioner indoor unit is designed in a refrigeration or dehumidification mode, the first outer air outlet is used as the indoor environment air outlet, and the second outer air outlet is used as the indoor environment air inlet. The first fan is started. The control method includes: In response to the refrigeration signal or dehumidification signal of the cabinet-type air conditioner indoor unit, obtain the operating parameters of the cabinet-type air conditioner indoor unit. According to the matching situation between the operating parameters and the preset dew condensation detection conditions and / or frost formation detection conditions, adjust the operating state of the second fan to inhibit dew condensation and / or defrosting.

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