Combined air duct, combined air duct system and cabinet air conditioner

Abstract

The application provides a combined air duct, a combined air duct system and a cabinet air conditioner. The combined air duct is formed with an air outlet duct, a centrifugal air duct and a cross-flow air duct. The air outlet duct and the centrifugal air duct are oppositely arranged in the vertical direction, and the cross-flow air duct and the centrifugal air duct are oppositely arranged in the horizontal direction. The centrifugal air duct comprises a centrifugal fan blade cavity and a air supply duct. One end of the air supply duct is communicated with the centrifugal fan blade cavity, and the other end of the air supply duct is selectively communicated with the air outlet duct or the cross-flow air duct. When the other end of the air supply duct is communicated with the air outlet duct, the air in the centrifugal air duct can be discharged from the upper and / or lower part of the centrifugal air duct. When the other end of the air supply duct is communicated with the cross-flow air duct, the air in the centrifugal air duct can be discharged from the front or rear part or the direction between the front and rear part of the centrifugal air duct. The air outlet can realize upper air outlet, lower air outlet, simultaneous upper and lower air outlet, left and right air outlet, and can meet various air supply requirements of users and ensure the comfort of air outlet. The air supply amount is improved, the air supply range is expanded, and the user experience effect is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air treatment, and particularly relates to a combined air duct, a combined air duct system and a cabinet air conditioner. BACKGROUND

[0002] In the existing ventilation equipment, up and down air outlet or left and right air outlet can be realized, and each has advantages and disadvantages. When up and down air outlet is realized, the user can be avoided to be directly blown by the air, and the comfort is good, but the air supply angle is fixed, and the air supply range is small. When left and right air outlet is realized, the air can be directly blown to the user, the air supply amount is large, and the air supply range is large, but the comfort is poor. With the development of technology, people have higher and higher functional requirements for the ventilation equipment, and it is urgent to develop a ventilation equipment which can realize up and down air outlet and left and right air outlet, so as to meet different air supply requirements. SUMMARY

[0003] In view of this, the present application provides a combined air duct, a combined air duct system and a cabinet air conditioner to solve the problems that the existing technology cannot consider the air not directly blowing the user, the air supply amount is large, the air supply direction is various and the air supply range is large.

[0004] The present application provides a combined air duct for a cabinet air treatment device; the combined air duct is formed with a centrifugal air duct and a cross-flow air duct, and the centrifugal air duct and the cross-flow air duct are arranged side by side; the centrifugal air duct comprises a centrifugal fan blade cavity, the centrifugal fan blade cavity is used for arranging a centrifugal fan blade, opposite sides of the centrifugal fan blade cavity in the radial direction are provided with a centrifugal fan blade cavity A outlet and a centrifugal fan blade cavity B outlet, and one side of the centrifugal fan blade cavity in the axial direction is provided with a centrifugal fan blade cavity inlet; the extension direction of the cross-flow air duct is consistent with the height direction of the cabinet air treatment device, and the cross-flow air duct is used for arranging a cross-flow fan blade; one side of the cross-flow air duct in the radial direction is provided with a cross-flow air duct C inlet and a cross-flow air duct D inlet which are arranged oppositely, and the other side of the cross-flow air duct in the radial direction is provided with a cross-flow air duct outlet;

[0005] The centrifugal air duct further comprises an upper air supply duct and a lower air supply duct, one end of the upper air supply duct is communicated with the centrifugal fan blade cavity A outlet, the other end of the upper air supply duct is formed with a first upper air supply port, and the first upper air supply port is selectively communicated with the cross-flow air duct C inlet;

[0006] One end of the lower air supply duct is communicated with the centrifugal fan blade cavity B outlet, the other end of the lower air supply duct is formed with a first lower air supply port, and the first lower air supply port is selectively communicated with the cross-flow air duct D inlet.

[0007] The present application further provides a combined air duct system for a cabinet air treatment device; the combined air duct system comprises an upper flow path control assembly, a lower flow path control assembly and the above-mentioned combined air duct.

[0008] The up-flow path control assembly is arranged at the first up-air outlet, and is configured to selectively allow air entering the up-air duct from the centrifugal impeller cavity A outlet to at least partially pass through the first up-air outlet into the cross-flow air duct.

[0009] The down-flow path control assembly is arranged at the first down-air outlet, and is configured to selectively allow air entering the down-air duct from the centrifugal impeller cavity B outlet to at least partially pass through the first down-air outlet into the cross-flow air duct.

[0010] Further, the combined air duct system comprises a cabinet, which comprises a back panel, a front panel, and a top panel connecting the back panel and the front panel; the back panel is formed with an air inlet, the top panel is formed with an up-air outlet, the front panel is formed with a front-air outlet and a down-air outlet, the front-air outlet is located above the down-air outlet; an installation cavity is formed in the cabinet;

[0011] The combined air duct is arranged in the installation cavity, and the centrifugal impeller cavity inlet and the air inlet are communicated through the installation cavity, and the cross-flow air duct outlet and the front-air outlet are communicated;

[0012] The other end of the up-air duct is further formed with a second up-air outlet, and the second up-air outlet and the up-air outlet are selectively communicated; the other end of the down-air duct is further formed with a second down-air outlet, and the second down-air outlet and the down-air outlet are selectively communicated.

[0013] Further, the up-flow path control assembly is movably arranged between the first up-air outlet and the second up-air outlet, and has a first working position and a second working position;

[0014] When the up-flow path control assembly is in the first working position, the up-flow path control assembly opens the first up-air outlet and closes the second up-air outlet; when the up-flow path control assembly is in the second working position, the up-flow path control assembly opens the second up-air outlet and closes the first up-air outlet;

[0015] The down-flow path control assembly is movably arranged between the first down-air outlet and the second down-air outlet, and has a third working position and a fourth working position;

[0016] When the down-flow path control assembly is in the third working position, the down-flow path control assembly opens the first down-air outlet and closes the second down-air outlet; when the down-flow path control assembly is in the fourth working position, the down-flow path control assembly opens the second down-air outlet and closes the first down-air outlet.

[0017] Further optionally, the combined air duct system is provided with left-right air outlet mode, up-down simultaneous air outlet mode, up-left-right simultaneous air outlet mode and down-left-right simultaneous air outlet mode.

[0018] When the up-flow control assembly is in the first working position and the down-flow control assembly is in the third working position, the combined air duct system can be in the left-right air outlet mode.

[0019] When the up-flow control assembly is in the second working position and the down-flow control assembly is in the fourth working position, the combined air duct system can be in the up-down simultaneous air outlet mode.

[0020] When the up-flow control assembly is in the second working position and the down-flow control assembly is in the third working position, the combined air duct system can be in the up-left-right simultaneous air outlet mode.

[0021] When the up-flow control assembly is in the first working position and the down-flow control assembly is in the fourth working position, the combined air duct system can be in the down-left-right simultaneous air outlet mode.

[0022] Further optionally, the upper air outlet is provided with an upper air guide mechanism, the upper air guide mechanism comprising rotatable upper air guide plates; the upper air guide plates are provided in plurality, and the plurality of upper air guide plates are sequentially and spacedly arranged along the front-rear direction of the cabinet; the plurality of upper air guide plates can open or close the upper air outlet or adjust the air outlet direction of the upper air outlet; and / or,

[0023] The front air outlet is provided with a front air guide mechanism, the front air guide mechanism comprising rotatable front air guide plates; the front air guide plates are provided in plurality, and the plurality of front air guide plates are sequentially and spacedly arranged along the left-right direction of the cabinet; the plurality of front air guide plates can open or close the front air outlet or adjust the air outlet direction of the front air outlet; and / or,

[0024] The lower air outlet is provided with a grid; the grid is provided in plurality, and the plurality of grids are sequentially and spacedly arranged along the up-down direction of the cabinet; the plurality of grids can adjust the air outlet direction of the lower air outlet.

[0025] Further optionally, a front air guiding mechanism is arranged at the front air outlet, the front air guiding mechanism comprises front left air guiding plates and front right air guiding plates, and the front left air guiding plates and the front right air guiding plates are rotatably arranged at the front air outlet; the front left air guiding plates and the front right air guiding plates are both provided in plurality, the plurality of front left air guiding plates are sequentially and spacedly arranged along the left-right direction of the cabinet and are located at the left side of the front air outlet, and the plurality of front right air guiding plates are sequentially and spacedly arranged along the left-right direction of the cabinet and are located at the right side of the front air outlet; the plurality of front left air guiding plates and the plurality of front right air guiding plates cooperate to open or close the front air outlet or adjust the air outlet direction of the front air outlet.

[0026] Further optionally, the combined air duct further forms an upper air outlet duct and a lower air outlet duct, the upper air outlet duct is located above the upper air supply duct, and the upper air outlet duct is communicated with the upper air outlet and a second upper air supply outlet; the lower air outlet duct is located below the lower air supply duct, and the lower air outlet duct is communicated with the lower air outlet and a second lower air supply outlet.

[0027] Further optionally, the combined air duct system further comprises a volute assembly and an air outlet frame assembly, the volute assembly comprises a volute and a volute cover, and the volute and the volute cover are buckled together to form the centrifugal air duct and the cross-flow air duct; the centrifugal impeller cavity is provided with a centrifugal impeller, and the cross-flow air duct is provided with a cross-flow impeller;

[0028] The air outlet frame assembly comprises an upper air outlet frame and a lower air outlet frame, the upper air outlet frame is arranged above the volute assembly, and the upper air outlet frame forms the upper air outlet duct, and the lower air outlet frame is arranged below the volute assembly, and the lower air outlet frame forms the lower air outlet duct.

[0029] The application also provides a cabinet type air conditioner comprising the combined air duct system.

[0030] Compared with the prior art, the application has the following beneficial effects:

[0031] The combined air duct forms the centrifugal air duct and the cross-flow air duct arranged side by side, the centrifugal air duct comprises a centrifugal impeller cavity, an upper air supply duct and a lower air supply duct, one end of the upper air supply duct is communicated with the centrifugal impeller cavity A outlet, the other end of the upper air supply duct forms a first upper air supply outlet, and the first upper air supply outlet is selectively communicated with the cross-flow air duct C inlet; one end of the lower air supply duct is communicated with the centrifugal impeller cavity B outlet, the other end of the lower air supply duct forms a first lower air supply outlet, and the first lower air supply outlet is selectively communicated with the cross-flow air duct D inlet;

[0032] When the first upper air supply outlet is in communication with the inlet of the cross-flow air duct C, the air in the centrifugal fan blade cavity can enter the cross-flow air duct through the upper air supply duct; when the first lower air supply outlet is in communication with the inlet of the cross-flow air duct D, the air in the centrifugal fan blade cavity can enter the cross-flow air duct through the lower air supply duct; the air in the cross-flow air duct is discharged through the outlet of the cross-flow air duct, realizing left and right air outlet; when the first upper air supply outlet is not in communication with the inlet of the cross-flow air duct C, the air in the centrifugal fan blade cavity can be directly discharged through the upper air supply duct, realizing upper air outlet; when the first lower air supply outlet is not in communication with the inlet of the cross-flow air duct D, the air in the centrifugal fan blade cavity can be directly discharged through the lower air supply duct, realizing lower air outlet;

[0033] The air supply device can meet various air supply requirements of users, can select a suitable air outlet mode according to needs, ensure the comfort of air outlet, improve the air supply amount, expand the air supply range, and ensure the user experience effect. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be derived from the provided drawings without creative labor.

[0035] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope covered by the disclosed technical content of the present application.

[0036] Figure 1a The assembly structure schematic diagram of the volute assembly embodiment provided by the present application is shown in the figure;

[0037] Figure 1b The exploded structure schematic diagram of the volute assembly embodiment provided by the present application is shown in the figure;

[0038] Figure 2a The assembly structure schematic diagram of the cabinet air conditioner embodiment provided by the present application is shown in the figure;

[0039] Figure 2b The exploded structure schematic diagram of the cabinet air conditioner embodiment provided by the present application is shown in the figure;

[0040] Figure 3a The internal structure schematic diagram of the cabinet air conditioner embodiment provided by the present application when it is in upper and lower air outlet at the same time is shown in the figure;

[0041] Figure 3bFig. 3 is a schematic view of the internal structure of the cabinet air conditioner according to the present application in the embodiment of the left and right air outlet;

[0042] Figure 4a Fig. 4 is a schematic view of the internal structure of the cabinet air conditioner according to the present application in the embodiment of the upper, left and right air outlet;

[0043] Figure 4b Fig. 5 is a schematic view of the internal structure of the cabinet air conditioner according to the present application in the embodiment of the lower, left and right air outlet;

[0044] Fig. 1 is a schematic view of the internal structure of the cabinet air conditioner according to the present application in the embodiment of the left and right air outlet;

[0045] 1 - volute assembly; 11 - volute; 12 - volute cover; 13 - upper air supply duct; 131 - first upper air supply port; 132 - second upper air supply port; 14 - lower air supply duct; 141 - first lower air supply port; 142 - second lower air supply port; 15 - centrifugal impeller chamber; 151 - centrifugal impeller chamber inlet; 152 - centrifugal impeller chamber A outlet; 153 - centrifugal impeller chamber B outlet; 161 - centrifugal impeller; 162 - centrifugal motor; 17 - cross flow air duct; 171 - cross flow air duct C inlet; 172 - cross flow air duct D inlet; 173 - cross flow air duct outlet; 181 - cross flow impeller; 182 - cross flow motor; 191 - upper baffle; 192 - lower baffle; 193 - baffle motor;

[0046] 21 - upper air outlet frame; 211 - upper air outlet duct; 221 - first lower air outlet frame; 222 - second lower air outlet frame; 223 - lower air outlet duct;

[0047] 3 - cabinet; 31 - front panel; 311 - front air outlet port; 312 - lower air outlet port; 32 - rear panel; 321 - air inlet port; 33 - inner frame; 331 - top plate; 332 - upper air outlet port; 34 - bottom plate;

[0048] 41 - upper air deflector; 42 - front left air deflector; 43 - front right air deflector; 44 - grille. DETAILED DESCRIPTION

[0049] The present application is described and explained with additional specificity and detail through the use of the accompanying drawings in which:

[0050] The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "and / or", "at least one of", "one or more of", and "and / or at least one of" as used herein in the disclosure, are open- ended, i.e., are intended to mean one or more of the recited items can be present or can be absent; also that terms such as "first", "second", "third", etc. are used only to identify or distinguish different elements and are not intended to imply a particular order or order of use.

[0051] It should be understood that the term "and / or" as used herein is merely an associative relationship to describe the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents that the front and rear associated objects are in an "or" relationship.

[0052] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that the products or systems including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such products or systems. Without more limitation, the element defined by the statement "including one" does not exclude the presence of other identical elements in the product or system including the element.

[0053] In the existing ventilation equipment, up and down air outlet or left and right air outlet can be realized, both have advantages and disadvantages, when up and down air outlet, it can avoid straight blowing of wind to the user, good comfort, but the air supply angle is fixed, the air supply range is small, when left and right air outlet, it can face air supply, the air supply amount is large, the air supply range is large, but the wind directly blows to the user, the comfort is poor, with the development of technology, people's functional requirements for ventilation equipment are higher and higher, it is urgent to develop a ventilation equipment which can realize up and down air outlet and left and right air outlet, so as to meet different air supply requirements;

[0054] The application creatively provides a combined air duct for a cabinet type air treatment device; the combined air duct is formed with a centrifugal air duct and a cross-flow air duct arranged side by side, the centrifugal air duct comprises a centrifugal fan blade cavity, an upper air supply duct and a lower air supply duct, the centrifugal fan blade cavity is provided with a centrifugal fan blade cavity A outlet and a centrifugal fan blade cavity B outlet, the cross-flow air duct is provided with a cross-flow air duct C inlet and a cross-flow air duct D inlet; one end of the upper air supply duct is communicated with the centrifugal fan blade cavity A outlet, the other end of the upper air supply duct is formed with a first upper air supply port, the first upper air supply port is selectively communicated with the cross-flow air duct C inlet; one end of the lower air supply duct is communicated with the centrifugal fan blade cavity B outlet, the other end of the lower air supply duct is formed with a first lower air supply port, the first lower air supply port is selectively communicated with the cross-flow air duct D inlet.

[0055] When the first upper air supply port is in communication with the C inlet of the cross-flow air duct, the air in the centrifugal fan blade cavity can enter the cross-flow air duct through the upper air supply duct; when the first lower air supply port is in communication with the D inlet of the cross-flow air duct, the air in the centrifugal fan blade cavity can enter the cross-flow air duct through the lower air supply duct; the air in the cross-flow air duct is discharged through the cross-flow air duct outlet, realizing left and right air outlet; when the first upper air supply port is not in communication with the C inlet of the cross-flow air duct, the air in the centrifugal fan blade cavity can be directly discharged through the upper air supply duct, realizing upper air outlet; when the first lower air supply port is not in communication with the D inlet of the cross-flow air duct, the air in the centrifugal fan blade cavity can be directly discharged through the lower air supply duct, realizing lower air outlet;

[0056] The various air supply needs of the user can be met, the comfort of the air outlet is ensured, the air supply amount is improved, the air supply range is expanded, and the user experience effect is ensured.

[0057] As shown in Figure 1a and Figure 1b , the embodiment provides a combined air duct for a cabinet air treatment device; the combined air duct is formed with a centrifugal air duct and a cross-flow air duct 17, and the centrifugal air duct and the cross-flow air duct 17 are arranged side by side; the centrifugal air duct includes a centrifugal fan blade cavity 15 for arranging a centrifugal fan blade 161, and the centrifugal fan blade cavity 15 is provided with a centrifugal fan blade cavity A outlet 152 and a centrifugal fan blade cavity B outlet 153 on two opposite sides in the radial direction, and the centrifugal fan blade cavity 15 is provided with a centrifugal fan blade cavity inlet 151 on one side in the axial direction; the extension direction of the cross-flow air duct 17 is consistent with the height direction of the cabinet air treatment device, and the cross-flow air duct 17 is used to arrange a cross-flow fan blade 181; the cross-flow air duct 17 is provided with a cross-flow air duct C inlet 171 and a cross-flow air duct D inlet 172 arranged oppositely on one side in the radial direction, and the cross-flow air duct 17 is provided with a cross-flow air duct outlet 173 on the other side in the radial direction;

[0058] The centrifugal air duct further includes an upper air supply duct 13 and a lower air supply duct 14, one end of the upper air supply duct 13 is in communication with the centrifugal fan blade cavity A outlet 152, and the other end of the upper air supply duct 13 is formed with a first upper air supply port 131, and the first upper air supply port 131 is selectively in communication with the cross-flow air duct C inlet 171;

[0059] One end of the lower air supply duct 14 is in communication with the centrifugal fan blade cavity B outlet 153, and the other end of the lower air supply duct 14 is formed with a first lower air supply port 141, and the first lower air supply port 141 is selectively in communication with the cross-flow air duct D inlet 172;

[0060] Specifically, the centrifugal air duct and the cross-flow air duct 17 are arranged side by side in a horizontal plane, the cross-flow air duct 17 is in front of the centrifugal air duct, and the cross-flow air duct 17 extends in a vertical direction; the centrifugal impeller cavity A outlet 152 is above the centrifugal impeller cavity B outlet 153; the cross-flow air duct C inlet 171 and the cross-flow air duct D inlet 172 are both located on the rear side of the cross-flow air duct 17, the cross-flow air duct C inlet 171 is above the cross-flow air duct D inlet 172, and the cross-flow air duct outlet 173 is located on the front side of the cross-flow air duct 17; the upper air supply duct 13 is above the centrifugal impeller cavity 15, and the lower air supply duct 14 is below the centrifugal impeller cavity 15; the first upper air supply port 131 is formed on the side wall of the cross-flow air duct 17 close to the upper air supply duct 13, and the cross-flow air duct C inlet 171 is formed on the side wall of the cross-flow air duct 17 close to the upper air supply duct 13; the first lower air supply port 141 is formed on the side wall of the cross-flow air duct 17 close to the lower air supply duct 14, and the cross-flow air duct D inlet 172 is formed on the side wall of the cross-flow air duct 17 close to the lower air supply duct 14.

[0061] As shown in Figure 2a and Figure 2b The embodiment also provides a combined air duct system for a cabinet air treatment device; the combined air duct system comprises an upper flow path control assembly, a lower flow path control assembly, and the combined air duct described above;

[0062] The upper flow path control assembly is arranged at the first upper air supply port 131, and is used for selectively causing at least part of the air entering the upper air supply duct 13 from the centrifugal impeller cavity A outlet 152 to enter the cross-flow air duct 17 through the first upper air supply port 131;

[0063] The lower flow path control assembly is arranged at the first lower air supply port 141, and is used for selectively causing at least part of the air entering the lower air supply duct 14 from the centrifugal impeller cavity B outlet 153 to enter the cross-flow air duct 17 through the first lower air supply port 141.

[0064] Further, the combined air duct system comprises a cabinet 3, the cabinet 3 comprises a rear panel 32, a front panel 31, and a top plate 331 connecting the rear panel 32 and the front panel 31; the rear panel 32 is formed with an air inlet 321, the top plate 331 is formed with an upper air outlet 332, the front panel 31 is formed with a front air outlet 311 and a lower air outlet 312, and the front air outlet 311 is above the lower air outlet 312; an installation cavity is formed in the interior of the cabinet 3;

[0065] The combined air duct is arranged in the installation cavity, and the centrifugal impeller cavity inlet 151 and the air inlet 321 are communicated through the installation cavity, and the cross-flow air duct outlet 173 and the front air outlet 311 are communicated;

[0066] The other end of the upper air supply duct 13 is further formed with a second upper air supply port 132, the second upper air supply port 132 and the upper air outlet 332 are selectively communicated; the other end of the lower air supply duct 14 is further formed with a second lower air supply port 142, the second lower air supply port 142 and the lower air outlet 312 are selectively communicated;

[0067] When the second upper air supply port 132 and the upper air outlet 332 are communicated and the first upper air supply port 131 and the through-flow air duct C inlet 171 are not communicated, the air in the upper air supply duct 13 can be discharged through the second upper air supply port 132 and the upper air outlet 332, realizing upper air outlet; when the second lower air supply port 142 and the lower air outlet 312 are communicated and the first lower air supply port 141 and the through-flow air duct D inlet 172 are not communicated, the air in the lower air supply duct 14 can be discharged through the second lower air supply port 142 and the lower air outlet 312, realizing lower air outlet.

[0068] The embodiment further proposes that an upper flow path control assembly is movably arranged between the first upper air supply port 131 and the second upper air supply port 132, the upper flow path control assembly has a first working position and a second working position; the centrifugal fan blade cavity 15 is arranged with a rotatable centrifugal fan blade 161; the through-flow air duct 17 is arranged with a rotatable through-flow fan blade 181;

[0069] When the upper flow path control assembly is in the first working position, the upper flow path control assembly opens the first upper air supply port 131 and closes the second upper air supply port 132, the upper air supply duct 13 and the through-flow air duct 17 are communicated, the second upper air supply port 132 and the upper air outlet 332 are not communicated; the centrifugal fan blade 161 and the through-flow fan blade 181 are both rotated, the air in the upper air supply duct 13 can enter the through-flow air duct 17 through the first upper air supply port 131, the air in the through-flow air duct 17 can be discharged through the through-flow air duct outlet 173, realizing left and right air outlet;

[0070] When the upper flow path control assembly is in the second working position, the upper flow path control assembly opens the second upper air supply port 132 and closes the first upper air supply port 131, the second upper air supply port 132 and the upper air outlet 332 are communicated, the upper air supply duct 13 and the through-flow air duct 17 are not communicated; the centrifugal fan blade 161 is rotated and the through-flow fan blade 181 is not rotated, the air in the upper air supply duct 13 can be discharged through the second upper air supply port 132, realizing upper air outlet;

[0071] The lower flow path control assembly is movably arranged between the first lower air supply port 141 and the second lower air supply port 142, the lower flow path control assembly has a third working position and a fourth working position;

[0072] When the lower flow path control assembly is in the third working position, the lower flow path control assembly opens the first lower air outlet 141 and closes the second lower air outlet 142, the lower air supply duct 14 and the through-flow air supply duct 17 are communicated, the second lower air outlet 142 and the lower air outlet 312 are not communicated; the centrifugal fan blade 161 and the through-flow fan blade 181 are rotated, the air in the lower air supply duct 14 can enter the through-flow air supply duct 17 through the first lower air outlet 141, the air in the through-flow air supply duct 17 can be discharged through the through-flow air supply duct outlet 173, and the left and right air outlet mode can be realized;

[0073] When the lower flow path control assembly is in the fourth working position, the lower flow path control assembly opens the second lower air outlet 142 and closes the first lower air outlet 141, the second lower air outlet 142 and the lower air outlet 312 are communicated, and the lower air supply duct 14 and the through-flow air supply duct 17 are not communicated; the centrifugal fan blade 161 is rotated and the through-flow fan blade 181 is not rotated, the air in the lower air supply duct 14 can be discharged through the second lower air outlet 142, and the lower air outlet mode can be realized;

[0074] Preferably, the upper flow path control assembly comprises an upper baffle 191 rotatably arranged between the first upper air outlet 131 and the second upper air outlet 132; and the lower flow path control assembly comprises a lower baffle 192 rotatably arranged between the first lower air outlet 141 and the second lower air outlet 142.

[0075] Further, as shown in Figures 3a to 4b the combined air duct system is provided with the left and right air outlet mode, the upper and lower simultaneous air outlet mode, the upper left and right simultaneous air outlet mode, and the lower left and right simultaneous air outlet mode;

[0076] When the upper flow path control assembly is in the first working position and the lower flow path control assembly is in the third working position, the combined air duct system can be in the left and right air outlet mode; that is, the centrifugal fan blade 161 and the through-flow fan blade 181 are rotated, the air in the upper air supply duct 13 can enter the through-flow air supply duct 17 through the first upper air outlet 131, the air in the lower air supply duct 14 can enter the through-flow air supply duct 17 through the first lower air outlet 141, and the air in the through-flow air supply duct 17 can be discharged through the through-flow air supply duct outlet 173, so that the left and right air outlet mode is realized;

[0077] When the upper flow path control assembly is in the second working position and the lower flow path control assembly is in the fourth working position, the combined air duct system can be in the upper and lower simultaneous air outlet mode; that is, the centrifugal fan blade 161 is rotated, the air in the upper air supply duct 13 can be discharged through the second upper air outlet 132, so that the upper air outlet mode is realized; the air in the lower air supply duct 14 can be discharged through the second lower air outlet 142, so that the lower air outlet mode is realized; in this way, the upper and lower simultaneous air outlet mode is realized;

[0078] When the upper flow control assembly is in the second working position and the lower flow control assembly is in the third working position, the combined air duct system can be in the upper-left-right air outlet mode; that is, the centrifugal fan blade 161 and the cross-flow fan blade 181 are rotated, the air in the upper air supply duct 13 can be discharged through the second upper air supply port 132 to realize upper air outlet, the air in the lower air supply duct 14 can enter the cross-flow air duct 17 through the first lower air supply port 141, and the air in the cross-flow air duct 17 can be discharged through the cross-flow air duct outlet 173 to realize left-right air outlet; in this way, the upper-left-right air outlet mode is realized.

[0079] When the upper flow control assembly is in the first working position and the lower flow control assembly is in the fourth working position, the combined air duct system can be in the lower-left-right air outlet mode; that is, the centrifugal fan blade 161 and the cross-flow fan blade 181 are rotated, the air in the upper air supply duct 13 can enter the cross-flow air duct 17 through the first upper air supply port 131, the air in the cross-flow air duct 17 can be discharged through the cross-flow air duct outlet 173 to realize left-right air outlet, and the air in the lower air supply duct 14 can be discharged through the second lower air supply port 142 to realize lower air outlet; in this way, the lower-left-right air outlet mode is realized.

[0080] In addition, the combined air duct system also has an upper air outlet mode and a lower air outlet mode.

[0081] The first upper air supply port 131 is closed, the second upper air supply port 132 is opened, and the first lower air supply port 141 and the second lower air supply port 142 are both closed, so that the combined air duct system can be in the upper air outlet mode; that is, the centrifugal fan blade 161 is rotated, and the air in the upper air supply duct 13 can be discharged through the second upper air supply port 132 to realize upper air outlet.

[0082] The first lower air supply port 141 is closed, the second lower air supply port 142 is opened, and the first upper air supply port 131 and the second upper air supply port 132 are both closed, so that the combined air duct system can be in the lower air outlet mode; that is, the centrifugal fan blade 161 is rotated, and the air in the lower air supply duct 14 can be discharged through the second lower air supply port 142 to realize lower air outlet.

[0083] The upper air outlet 332 is provided with an upper air guide mechanism, and the upper air guide mechanism comprises a plurality of rotatable upper air guide plates 41; the plurality of upper air guide plates 41 are sequentially and spaced apart in the front-rear direction of the machine shell 3; the plurality of upper air guide plates 41 can open or close the upper air outlet 332 or adjust the air outlet direction of the upper air outlet 332; when the plurality of upper air guide plates 41 close the upper air outlet 332, dust can be prevented from entering the interior of the machine shell 3 through the upper air outlet 332, and the aesthetic appearance is improved; by controlling the rotation of the plurality of upper air guide plates 41, the air outlet direction of the upper air outlet 332 can be adjusted to realize air supply at different angles and meet different air supply requirements;

[0084] The front air outlet 311 is provided with a front air guide mechanism, and the front air guide mechanism comprises rotatable front air guide plates; the front air guide plates are provided in plurality, and the plurality of front air guide plates are sequentially and spacedly arranged along the left-right direction of the cabinet 3; the plurality of front air guide plates can open or close the front air outlet 311 or adjust the air outlet direction of the front air outlet 311; the rotation of the front air guide plates can adjust the air outlet direction of the front air outlet 311, realize left and right air outlet, avoid cold air directly blowing on the user, uniformly outlet air, and improve the cooling effect;

[0085] The lower air outlet 312 is provided with a grille 44; the grille 44 is provided in plurality, and the plurality of grilles 44 are sequentially and spacedly arranged along the up-down direction of the cabinet 3; the plurality of grilles 44 can adjust the air outlet direction of the lower air outlet 312; the grille 44 can reduce the wind feeling and prevent dust from being blown up.

[0086] In other embodiments, the front air outlet 311 is provided with a front air guide mechanism, and the front air guide mechanism comprises a front left air guide plate 42 and a front right air guide plate 43, both of which are rotatably arranged at the front air outlet 311; the front left air guide plate 42 and the front right air guide plate 43 are provided in plurality, the plurality of front left air guide plates 42 are sequentially and spacedly arranged along the left-right direction of the cabinet 3 and located at the left side of the front air outlet 311, and the plurality of front right air guide plates 43 are sequentially and spacedly arranged along the left-right direction of the cabinet 3 and located at the right side of the front air outlet 311; the plurality of front left air guide plates 42 and the plurality of front right air guide plates 43 can open or close the front air outlet 311 or adjust the air outlet direction of the front air outlet 311.

[0087] The combination air duct also forms an upper air outlet duct 211 and a lower air outlet duct 223, the upper air outlet duct 211 is located above the upper air supply duct 13, the upper air outlet duct 211 communicates the upper air outlet 332 and the second upper air supply outlet 132; the lower air outlet duct 223 is located below the lower air supply duct 14, the lower air outlet duct 223 communicates the lower air outlet 312 and the second lower air supply outlet 142; that is, the upper air outlet duct 211, the centrifugal air duct and the lower air outlet duct 223 are sequentially arranged from top to bottom;

[0088] The upper air supply duct 13 is selectively communicated with the upper air outlet duct 211 or the cross-flow air duct 17, and the lower air supply duct 14 is selectively communicated with the lower air outlet duct 223 or the cross-flow air duct 17.

[0089] Further, the combination air duct system further comprises a volute assembly 1 and an air outlet frame assembly, the volute assembly 1 comprises a volute 11 and a volute cover 12, the volute 11 and the volute cover 12 are buckled together to form a centrifugal air duct and a cross-flow air duct 17; the centrifugal air duct is provided with a centrifugal fan blade 161, and the cross-flow air duct 17 is provided with a cross-flow fan blade 181;

[0090] The air outlet frame assembly comprises an upper air outlet frame 21 and a lower air outlet frame, the upper air outlet frame 21 is arranged above the volute assembly 1 and is formed with an upper air outlet channel 211, and the lower air outlet frame is arranged below the volute assembly 1 and is formed with a lower air outlet channel 223.

[0091] Specifically, the cabinet 3 further comprises an inner frame 33 and a bottom plate 34, the inner frame 33 is arranged between the front panel 31 and the rear panel 32 and connects the front panel 31 and the rear panel 32, the top of the inner frame 33 is formed with a top plate 331, and the bottom plate 34 is arranged at the bottom of the inner frame 33; the front panel 31, the rear panel 32, the inner frame 33 and the bottom plate 34 surround to form a mounting cavity; the volute assembly 1 and the air outlet frame assembly are arranged on the inner frame 33; the lower air outlet frame comprises a first lower air outlet frame 221 and a second lower air outlet frame 222, the first lower air outlet frame 221 is formed with a first lower air outlet channel, and the second lower air outlet frame 222 is formed with a second lower air outlet channel; the volute assembly 1, the second lower air outlet frame 222 and the first lower air outlet frame 221 are sequentially arranged, and the lower air supply channel 14, the second lower air outlet channel, the first lower air outlet channel and the lower air outlet 312 are sequentially communicated;

[0092] The rear panel 32 supports the entire cabinet 3, the centrifugal motor 162 and the tubular motor 182 are fixed on the rear panel 32 and arranged above the volute 11; the centrifugal motor 162 is drivingly connected with the centrifugal fan blade 161 and can drive the centrifugal fan blade 161 to rotate; the tubular motor 182 is drivingly connected with the tubular fan blade 181 and can drive the tubular fan blade 181 to rotate; the bottom plate 34 is arranged at the bottom of the inner frame 33, can fix the tubular motor 182 and also supports; the upper baffle 191 is drivingly connected with a baffle motor 193, the baffle motor 193 drives the upper baffle 191 to rotate, the lower baffle 192 is drivingly connected with another baffle motor 193, the baffle motor 193 drives the lower baffle 192 to rotate, and one of the air supply channel, the air outlet channel and the tubular air channel 17 is communicated; the air deflector motor is drivingly connected with the air deflector and can drive the air deflector to rotate to adjust the air supply angle; the middle frame is an appearance part and plays a decorative and supporting role; the front panel 31 is provided with a display and plays a role of constituting an air channel and decoration; the front left air deflector 42 and the front right air deflector 43 are both arranged on the front panel 31, can adjust the air supply angle and play a role of decoration and air deflection.

[0093] The cabinet type air conditioner further comprises an indoor heat exchanger and the combined air channel system according to any one of the above.

[0094] When the upper air supply channel 13 and the upper air outlet channel 211 are communicated, the air in the centrifugal fan blade cavity 15 can be discharged through the upper air outlet 332 to realize upper air outlet.

[0095] When the lower air supply duct 14 and the lower air outlet duct 223 are connected, the air in the centrifugal fan blade cavity 15 can be discharged through the lower air outlet 312 to achieve lower air outlet.

[0096] When the upper air supply duct 13 and the cross-flow duct 17 are connected and / or the lower air supply duct 14 and the cross-flow duct 17 are connected, the air in the centrifugal fan blade cavity 15 enters the cross-flow duct 17 and is then discharged through the front air outlet 311, which can achieve left and right air outlet.

[0097] When the cabinet air conditioner is in cooling mode, the upper air supply duct 13 and the upper air outlet duct 211 can be connected, and the lower air supply duct 14 and the lower air outlet duct 223 can be connected, so that air can be discharged from the upper and lower parts at the same time, the cold air will not blow on people, the air supply volume is sufficient, and the cooling effect is obvious.

[0098] When the cabinet air conditioner is in heating mode, the upper air supply duct 13 and the cross-flow air duct 17 are connected and / or the lower air supply duct 14 and the cross-flow air duct 17 are connected to achieve left and right air outlets. The warm air starts from the feet, providing high comfort, and the air can also be directed towards the face, resulting in a large air volume.

[0099] like Figure 3a As shown, when a user needs the cabinet air conditioner to have airflow in both the upper and lower sections, they only need to press the "upper and lower airflow" button. The upper baffle 191 opens the second upper air outlet 132 while closing the first upper air outlet 131. The upper air supply duct 13 and the upper air outlet duct 211 are connected through the second upper air outlet 132, but the upper air supply duct 13 and the cross-flow duct 17 are not connected. The lower baffle 192 opens the second lower air outlet 142 while closing the first lower air outlet 141. The lower air supply duct 14 and the lower air outlet duct 223 are connected through the second lower air outlet 142, but the lower air supply duct 14 and the cross-flow duct 17 are not connected. At this point, a flow path is formed that leads only to the upper air outlet 332 and the lower air outlet 312. The upper air guide plate 41 is opened, the centrifugal fan blade 161 rotates, and the indoor air enters the installation cavity through the air inlet 321 and enters the centrifugal fan blade cavity 15 through the evaporator and the centrifugal fan blade cavity inlet 151. Part of the air is discharged through the upper air supply duct 13, the upper air outlet duct 211 and the upper air outlet 332, and the other part of the air is discharged through the lower air supply duct 14, the lower air outlet duct 223 and the lower air outlet 312, so that the air is discharged from the upper and lower parts at the same time, which can avoid cold air blowing directly on the user and make the warm air start from the feet, resulting in high comfort.

[0100] like Figure 3bAs shown, when the user needs the left and right air outlet of the cabinet air conditioner, only need to press the "left and right air outlet" button, the upper shutter 191 opens the first upper air outlet 131 while closing the second upper air outlet 132, the upper air duct 13 and the upper air outlet duct 211 are not connected, the upper air duct 13 and the cross-flow air duct 17 are connected through the first upper air outlet 131; the lower shutter 192 opens the first lower air outlet 141 while closing the second lower air outlet 142, the lower air duct 14 and the lower air outlet duct 223 are not connected, the lower air duct 14 and the cross-flow air duct 17 are connected through the first lower air outlet 141; at this time, a flow path only to the front air outlet 311 is formed, the front left air deflector 42 and the front right air deflector 43 are opened, the centrifugal fan blade 161 rotates, the indoor air enters the installation cavity through the air inlet 321 and enters the centrifugal fan blade cavity 15 through the evaporator and the centrifugal fan blade cavity inlet 151, part of the air is discharged through the upper air duct 13, the cross-flow air duct 17 and the front air outlet 311, another part of the air is discharged through the lower air duct 14, the cross-flow air duct 17 and the front air outlet 311, realizing left and right air outlet, large air volume, long air supply distance, strong air outlet, and excellent cooling effect;

[0101] As shown in Figure 4a As shown, when the user needs the left and right air outlet of the cabinet air conditioner, only need to press the "left and right air outlet" button, the upper shutter 191 opens the first upper air outlet 131 while closing the second upper air outlet 132, the upper air duct 13 and the upper air outlet duct 211 are not connected, the upper air duct 13 and the cross-flow air duct 17 are connected through the first upper air outlet 131; the lower shutter 192 opens the first lower air outlet 141 while closing the second lower air outlet 142, the lower air duct 14 and the lower air outlet duct 223 are not connected, the lower air duct 14 and the cross-flow air duct 17 are connected through the first lower air outlet 141; at this time, a flow path only to the front air outlet 311 is formed, the front left air deflector 42 and the front right air deflector 43 are opened, the centrifugal fan blade 161 rotates, the indoor air enters the installation cavity through the air inlet 321 and enters the centrifugal fan blade cavity 15 through the evaporator and the centrifugal fan blade cavity inlet 151, part of the air is discharged through the upper air duct 13, the cross-flow air duct 17 and the front air outlet 311, another part of the air is discharged through the lower air duct 14, the cross-flow air duct 17 and the front air outlet 311, realizing left and right air outlet, large air volume, long air supply distance, strong air outlet, and excellent cooling effect;

[0102] As shown in Figure 4bAs shown, when the user needs to blow air to the left and right, the user only needs to press the "blow air to the left and right" button, the upper shutter 191 opens the first upper air outlet 131 while closing the second upper air outlet 132, the upper air supply duct 13 and the upper air outlet duct 211 are not connected, and the upper air supply duct 13 and the cross-flow air duct 17 are connected through the first upper air outlet 131; the lower shutter 192 opens the second lower air outlet 142 while closing the first lower air outlet 141, the lower air supply duct 14 and the lower air outlet duct 223 are connected through the second lower air outlet 142, and the lower air supply duct 14 and the cross-flow air duct 17 are not connected; at this time, a wind channel only leading to the lower air outlet 312 and the front air outlet 311 is formed, the lower air deflector, the front left air deflector 42 and the front right air deflector 43 are opened, the centrifugal fan blade 161 rotates, indoor air enters the installation cavity through the air inlet 321 and enters the centrifugal fan blade cavity 15 through the evaporator and the centrifugal fan blade cavity inlet 151, part of the air is discharged through the upper air supply duct 13, the cross-flow air duct 17 and the front air outlet 311, and the other part of the air is discharged through the lower air supply duct 14, the lower air outlet duct 223 and the lower air outlet 312, realizing simultaneous blowing air to the left and right, quickly regulating the temperature of the lower half of the indoor area, and quickly drying the ground.

[0103] In summary, the cabinet type air conditioner in the embodiment combines the advantages of up and down air outlet and left and right air outlet, eliminates the disadvantages, takes advantages and avoids disadvantages, and is powerful; various air outlet modes such as up air outlet, down air outlet, simultaneous up and down air outlet, left and right air outlet, simultaneous up and left and right air outlet, and simultaneous down and left and right air outlet can be realized, the air outlet volume is large, the air supply distance is far, the air supply range is wide, cold air is not blown, warm air is blown from the feet, comfort is high, air is blown in the face, the air outlet volume is large, the cooling effect is good, and the user experience effect is good.

[0104] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims.

Claims

1. A combination air duct system for a cabinet air handling unit; characterized by, The combined air duct system comprises a combined air duct, an upper flow path control assembly, a lower flow path control assembly and a cabinet (3); the combined air duct is formed with a centrifugal air duct and a cross-flow air duct (17), which are arranged side by side; the centrifugal air duct comprises a centrifugal impeller cavity (15) for arranging a centrifugal impeller (161), the centrifugal impeller cavity (15) is provided with a centrifugal impeller cavity A outlet (152) and a centrifugal impeller cavity B outlet (153) on two diametrically opposite sides, and the centrifugal impeller cavity (15) is provided with a centrifugal impeller cavity inlet (151) on one axial side; the extension direction of the cross-flow air duct (17) is consistent with the height direction of the cabinet air treatment device, and the cross-flow air duct (17) is used for arranging a cross-flow impeller (181); the cross-flow air duct (17) is provided with a cross-flow air duct C inlet (171) and a cross-flow air duct D inlet (172) arranged oppositely on one radial side, and the cross-flow air duct (17) is provided with a cross-flow air duct outlet (173) on the other radial side; The centrifugal air duct further comprises an upper air supply duct (13) and a lower air supply duct (14), one end of the upper air supply duct (13) is communicated with the centrifugal impeller cavity A outlet (152), the other end of the upper air supply duct (13) is formed with a first upper air supply port (131), and the first upper air supply port (131) is selectively communicated with the cross-flow air duct C inlet (171); one end of the lower air supply duct (14) is communicated with the centrifugal impeller cavity B outlet (153), the other end of the lower air supply duct (14) is formed with a first lower air supply port (141), and the first lower air supply port (141) is selectively communicated with the cross-flow air duct D inlet (172); The upper flow path control assembly is arranged at the first upper air supply port (131), and is used for selectively making the air entering the upper air supply duct (13) from the centrifugal impeller cavity A outlet (152) at least partially enter the cross-flow air duct (17) through the first upper air supply port (131); the lower flow path control assembly is arranged at the first lower air supply port (141), and is used for selectively making the air entering the lower air supply duct (14) from the centrifugal impeller cavity B outlet (153) at least partially enter the cross-flow air duct (17) through the first lower air supply port (141); The cabinet (3) comprises a rear panel (32), a front panel (31) and a top panel (331) connecting the rear panel (32) and the front panel (31); the rear panel (32) is formed with an air inlet (321), the top panel (331) is formed with an upper air outlet (332), the front panel (31) is formed with a front air outlet (311) and a lower air outlet (312), and the front air outlet (311) is located above the lower air outlet (312); an installation cavity is formed in the interior of the cabinet (3); The combined air duct is arranged in the mounting cavity, the centrifugal fan blade cavity inlet (151) and the air inlet (321) are communicated through the mounting cavity, and the cross-flow air duct outlet (173) and the front air outlet (311) are communicated; The other end of the upper air supply duct (13) is further formed with a second upper air supply outlet (132), and the second upper air supply outlet (132) and the upper air outlet (332) are selectively communicated; the other end of the lower air supply duct (14) is further formed with a second lower air supply outlet (142), and the second lower air supply outlet (142) and the lower air outlet (312) are selectively communicated.

2. The combination air duct system of claim 1, wherein, The upper flow path control assembly is movably arranged between the first upper air supply outlet (131) and the second upper air supply outlet (132), and has a first working position and a second working position; When the upper flow path control assembly is in the first working position, the upper flow path control assembly opens the first upper air supply outlet (131) and closes the second upper air supply outlet (132); when the upper flow path control assembly is in the second working position, the upper flow path control assembly opens the second upper air supply outlet (132) and closes the first upper air supply outlet (131); The lower flow path control assembly is movably arranged between the first lower air supply outlet (141) and the second lower air supply outlet (142), and has a third working position and a fourth working position; When the lower flow path control assembly is in the third working position, the lower flow path control assembly opens the first lower air supply outlet (141) and closes the second lower air supply outlet (142); when the lower flow path control assembly is in the fourth working position, the lower flow path control assembly opens the second lower air supply outlet (142) and closes the first lower air supply outlet (141).

3. The combination air duct system of claim 2, wherein, The combined air duct system is provided with left-right air outlet mode, up-down simultaneous air outlet mode, up-left-right simultaneous air outlet mode and down-left-right simultaneous air outlet mode; When the upper flow path control assembly is in the first working position and the lower flow path control assembly is in the third working position, the combined air duct system can be in the left-right air outlet mode; When the upper flow path control assembly is in the second working position and the lower flow path control assembly is in the fourth working position, the combined air duct system can be in the up-down simultaneous air outlet mode; When the upper flow path control assembly is in the second working position and the lower flow path control assembly is in the third working position, the combined air duct system can be in the up-left-right simultaneous air outlet mode; When the upper flow path control assembly is in the first working position and the lower flow path control assembly is in the fourth working position, the combined air duct system can be in the down-left-right simultaneous air outlet mode.

4. The combination air duct system of claim 2, wherein, The upper air outlet (332) is provided with an upper air guide mechanism, the upper air guide mechanism comprises rotatable upper air guide plates (41); the upper air guide plates (41) are provided in plurality, and the plurality of upper air guide plates (41) are sequentially and spacedly arranged along the front-rear direction of the cabinet (3); the plurality of upper air guide plates (41) can open or close the upper air outlet (332) or adjust the air outlet direction of the upper air outlet (332); and / or, The front air outlet (311) is provided with a front air guide mechanism, the front air guide mechanism comprises rotatable front air guide plates; the front air guide plates are provided in plurality, and the plurality of front air guide plates are sequentially and spacedly arranged along the left-right direction of the cabinet (3); the plurality of front air guide plates can open or close the front air outlet (311) or adjust the air outlet direction of the front air outlet (311); and / or, The lower air outlet (312) is provided with a grille (44); the grille (44) is provided in plurality, and the plurality of grilles (44) are sequentially and spacedly arranged along the up-down direction of the cabinet (3); the plurality of grilles (44) can adjust the air outlet direction of the lower air outlet (312).

5. The combination air duct system of claim 2, wherein, The front air outlet (311) is provided with a front air guide mechanism, the front air guide mechanism comprises front left air guide plates (42) and front right air guide plates (43), and the front left air guide plates (42) and the front right air guide plates (43) are rotatably arranged at the front air outlet (311); the front left air guide plates (42) and the front right air guide plates (43) are provided in plurality, the plurality of front left air guide plates (42) are sequentially and spacedly arranged along the left-right direction of the cabinet (3) and located at the left side of the front air outlet (311), and the plurality of front right air guide plates (43) are sequentially and spacedly arranged along the left-right direction of the cabinet (3) and located at the right side of the front air outlet (311); the plurality of front left air guide plates (42) and the plurality of front right air guide plates (43) can open or close the front air outlet (311) or adjust the air outlet direction of the front air outlet (311).

6. The combination air duct system of claim 3, wherein, The combined air duct is further formed with an upper air outlet duct (211) and a lower air outlet duct (223), the upper air outlet duct (211) is located above the upper air supply duct (13), and the upper air outlet duct (211) communicates the upper air outlet (332) and the second upper air supply outlet (132); the lower air outlet duct (223) is located below the lower air supply duct (14), and the lower air outlet duct (223) communicates the lower air outlet (312) and the second lower air supply outlet (142).

7. The combination air duct system of claim 6, wherein, The combined air duct system further comprises a volute assembly (1) and an air outlet frame assembly, the volute assembly (1) comprises a volute (11) and a volute cover (12), the volute (11) and the volute cover (12) are buckled together to form the centrifugal air duct and the cross-flow air duct (17); the centrifugal air duct is provided with centrifugal air blades (161), and the cross-flow air duct (17) is provided with cross-flow air blades (181); The air outlet frame assembly comprises an upper air outlet frame (21) and a lower air outlet frame, the upper air outlet frame (21) is arranged above the volute assembly (1) and the upper air outlet frame (21) is formed with the upper air outlet (211), and the lower air outlet frame is arranged below the volute assembly (1) and the lower air outlet frame is formed with the lower air outlet (223).

8. A cabinet-type air conditioner, characterized by comprising: A combination air duct system comprising the air duct system of any one of claims 1 to 7.

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