A cabinet type air conditioner

Abstract

The application provides a cabinet type air conditioner, and belongs to the technical field of air conditioners. The cabinet type air conditioner comprises a machine body, a first air vent and a second air vent are arranged on the upper portion of the machine body, a third air vent and a fourth air vent are arranged on the lower portion of the machine body, and the air conditioner further comprises an air duct component, a centrifugal fan system, a partition, a wind blocking structure and a volute tongue movement mechanism. Through the cooperative matching among the air duct component, the centrifugal fan system, the partition, the wind blocking structure and the volute tongue movement mechanism, the air conditioner with reversible air supply and return can be realized, the problem that the temperature distribution is uneven under a certain working condition due to the fixed air supply and return positions of the air conditioner is solved, and the energy saving and the comfort experience of the air conditioner under different working conditions can reach the best simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a cabinet type air conditioner. BACKGROUND

[0002] The air supply outlet and the air return inlet of the conventional air conditioner are relatively fixed in position, however, indoor air temperature is stratified along the height direction, air with high temperature gathers at a high position due to small density, and air with low temperature gathers at a low position due to large density, which causes the air conditioner with fixed air supply and return positions to be unable to take into account various working conditions, and there is a temperature stratification phenomenon along the height direction in a certain working condition, and both energy saving and comfort cannot be optimal.

[0003] Taking the cabinet type air conditioner with air supply from above and air return from below or air supply from above and air return from behind as an example, the air supply outlet is located at a high position above the air conditioner, and when the air conditioner is used for cooling in summer, the jet flow can quickly reach the area above the human body activity area, and the cold air flow can naturally sink due to large density, which can achieve rapid cooling and small blowing feeling, and both temperature drop and comfort are taken into account, and at the same time, since the air return inlet is located at the lower part of the air conditioner, the air return temperature is about 2℃ lower than that at the middle and upper parts, and compared with air return at the middle and upper parts, the energy saving effect is better. However, when the air conditioner is used for heating in winter, the hot jet flow does not come down at the upper part of the room due to the principle of hot air rising, and the phenomenon of hot air at the upper part and cold air at the lower part occurs, and at this time, the air return temperature at the lower part is about 2℃ lower than that at the middle and upper parts, and compared with air return at the middle and upper parts, more energy needs to be consumed to achieve the same air outlet temperature, and the energy saving effect is poor. The energy saving and emission reduction and comfort experience of the air conditioner with fixed air supply and return positions cannot be optimal at the same time in the cooling / heating different working conditions. Therefore, the conventional one-way air inlet and outlet circulation mode cannot take into account the energy saving and comfort requirements in cooling and heating.

[0004] There are two kinds of existing reversible air supply air conditioners, one is to control the motor of the axial flow fan to realize reversible air supply by setting a reversible axial flow fan, this mode has high manufacturing cost requirement for the motor, and the axial flow fan has problems of short air supply distance and small air volume, etc.; the other is to set a mixed flow fan to realize reversible air supply by the mixed flow fan blade, this mode has high fan speed and large noise, and has low work efficiency and cannot meet the energy saving requirement. The above two modes have problems of large noise and small air volume, which causes the energy saving and comfort of the air conditioner to be unable to meet the requirements, and the product cannot be realized. Moreover, the air inlet and outlet passages of the existing reversible air conditioner are single, and the air path section is small and the flow process is long, which causes large air inlet resistance, and the air outlet air volume and noise cannot meet the requirements, and the air inlet and outlet modes are not diversified enough. SUMMARY

[0005] In order to overcome the problem that the air conditioner in the related art has a fixed air supply and return position, which causes uneven temperature distribution in a certain working condition, and the energy saving and comfort experience of the air conditioner in different working conditions cannot be simultaneously optimal, an embodiment of the present application provides a cabinet type air conditioner capable of realizing reversible air supply and return of air supply and return, so that the energy saving and comfort experience of the air conditioner in different working conditions can be simultaneously optimal.

[0006] The cabinet type air conditioner in the embodiment 1 of the present application comprises a body, the upper portion of the body is provided with a first air vent and a second air vent, and the lower portion of the body is provided with a third air vent and a fourth air vent.

[0007] A duct component is arranged in the interior of the body, and the exterior of the duct component and the body define a body shell passage, and the interior of the duct component is formed with an upper air outlet duct, an upper fan air duct, a middle air duct, a lower fan air duct and a lower air outlet duct arranged in sequence from top to bottom.

[0008] A centrifugal fan system comprises an upper fan arranged in the upper fan air duct and a lower fan arranged in the lower fan air duct, and the upper fan has upper air inlets at both axial ends and connected to the body shell passage, and the lower fan has lower air inlets at both axial ends and connected to the body shell passage.

[0009] A partition comprises an upper partition arranged in the upper air outlet duct and a lower partition arranged in the lower air outlet duct, the upper partition divides the upper air outlet duct into a first upper air outlet duct and a second upper air outlet duct, and the lower partition divides the lower air outlet duct into a first lower air outlet duct and a second lower air outlet duct.

[0010] The wind blocking structure comprises an upper wind blocking structure and a lower wind blocking structure, the upper wind blocking structure comprises an upper wind blocking structure one rotatably arranged on a first upper air duct wall and an upper wind blocking structure two rotatably arranged on a second upper air duct wall, the first upper air duct wall is provided with a channel connecting the machine body shell and an upper return air outlet of the first upper air duct, the rotatably arranged upper wind blocking structure one can open or close the upper return air outlet, wherein the rotatably arranged upper wind blocking structure one is designed to block the communication between the upper air blower air duct and the first upper air duct while opening the upper return air outlet or to make the upper air blower air duct and the first upper air duct communicate while closing the upper return air outlet, the rotatably arranged upper wind blocking structure two can make the second upper air duct and the intermediate air duct communicate or block the communication between the second upper air duct and the intermediate air duct, the lower wind blocking structure comprises a lower wind blocking structure one rotatably arranged on a first lower air duct wall and a lower wind blocking structure two rotatably arranged on a second lower air duct wall, the first lower air duct wall is provided with a channel connecting the machine body shell and a lower return air outlet of the first lower air duct, the rotatably arranged lower wind blocking structure one can open or close the lower return air outlet, wherein the rotatably arranged lower wind blocking structure one is designed to block the communication between the lower air blower air duct and the first lower air duct while opening the lower return air outlet or to make the lower air blower air duct and the first lower air duct communicate while closing the lower return air outlet, the rotatably arranged lower wind blocking structure two can make the second lower air duct and the intermediate air duct communicate or block the communication between the second lower air duct and the intermediate air duct.

[0011] The snail tongue movement mechanism comprises an upper snail tongue movement mechanism arranged on the upper air blower and a lower snail tongue movement mechanism arranged on the lower air blower, the upper snail tongue movement mechanism and the lower snail tongue movement mechanism can be driven to move, the upper snail tongue movement mechanism can be driven to move to a first position or a second position, when the upper snail tongue movement mechanism moves to the first position, the upper air blower blows air upward, when the upper snail tongue movement mechanism moves to the second position, the upper air blower blows air downward, the lower snail tongue movement mechanism can be driven to move to a third position or a fourth position, when the lower snail tongue movement mechanism is driven to move to the third position, the lower air blower blows air upward, when the lower snail tongue movement mechanism is driven to move to the fourth position, the lower air blower blows air downward.

[0012] In the above technical solution, the air conditioner comprises a single upper air outlet cooling mode, a single lower air outlet cooling mode and a cooling / heating upper and lower air outlet mode.

[0013] When the air conditioner runs in the cooling mode with air out from the upper air outlet, the upper baffle structure one is controlled to rotate to close the upper return air outlet, at this time the upper fan air duct is communicated with the first upper air outlet, the upper baffle structure two is controlled to rotate to make the intermediate air duct and the second upper air outlet communicated, the upper volute tongue movement mechanism is controlled to move to the first position to make the upper fan air out from the upper air outlet, the lower baffle structure one is controlled to rotate to open the lower return air outlet, at this time the lower fan air duct is not communicated with the first lower air outlet, the lower baffle structure two is controlled to rotate to block the communication between the second lower air outlet and the intermediate air duct, the lower volute tongue movement mechanism is controlled to move to the third position to make the lower fan air out from the upper air outlet;

[0014] When the air conditioner runs in the heating mode with air out from the lower air outlet, the upper baffle structure one is controlled to rotate to open the upper return air outlet, at this time the upper fan air duct is not communicated with the first upper air outlet, the upper baffle structure two is controlled to rotate to block the communication between the intermediate air duct and the second upper air outlet, the upper volute tongue movement mechanism is controlled to move to the second position to make the upper fan air out from the lower air outlet, the lower baffle structure one is controlled to rotate to close the lower return air outlet, at this time the lower fan air duct is communicated with the first lower air outlet, the lower baffle structure two is controlled to rotate to make the second lower air outlet and the intermediate air duct communicated, the lower volute tongue movement mechanism is controlled to move to the fourth position to make the lower fan air out from the lower air outlet;

[0015] When the air conditioner runs in the cooling / heating mode with air out from the upper and lower air outlets, the upper baffle structure one is controlled to rotate to close the upper return air outlet, at this time the upper fan air duct is communicated with the first upper air outlet, the upper baffle structure two is controlled to rotate to block the communication between the intermediate air duct and the second upper air outlet, the upper volute tongue movement mechanism is controlled to move to the first position to make the upper fan air out from the upper air outlet, the lower baffle structure one is controlled to rotate to close the lower return air outlet, at this time the lower fan air duct is communicated with the first lower air outlet, the lower baffle structure two is controlled to rotate to block the communication between the intermediate air duct and the second lower air outlet, the lower volute tongue movement mechanism is controlled to move to the fourth position to make the lower fan air out from the lower air outlet.

[0016] In the above technical solution, when the air conditioner runs in the cooling mode with air out from the upper air outlet, the upper volute tongue movement mechanism and the upper baffle structure one constitute a part of the upper fan volute profile, the lower volute tongue movement mechanism, the lower partition and the lower baffle structure two constitute a part of the lower fan volute profile;

[0017] When the air conditioner runs in the heating mode with air out from the lower air outlet, the upper volute tongue movement mechanism, the upper partition and the upper baffle structure two constitute a part of the upper fan volute profile, the lower volute tongue movement mechanism and the lower baffle structure one constitute a part of the lower fan volute profile;

[0018] When the air conditioner runs in the cooling / heating mode with air out from the upper and lower air outlets, the upper volute tongue movement mechanism and the upper baffle structure one constitute a part of the upper fan volute profile, the lower volute tongue movement mechanism and the lower baffle structure one constitute a part of the lower fan volute profile.

[0019] In the technical solution, the upper partition includes an upper triangular block arranged in the upper air outlet channel, and the lower partition includes a lower triangular block arranged in the lower air outlet channel.

[0020] The upper triangular block includes a first upper side, a second upper side and a third upper side connected in sequence, the first upper side forms a part of the air channel wall of the first upper air outlet channel, the second upper side forms a part of the air channel wall of the second upper air outlet channel, and the third upper side is arranged close to the upper fan.

[0021] The lower triangular block includes a first lower side, a second lower side and a third lower side connected in sequence, the first lower side forms a part of the air channel wall of the first lower air outlet channel, the second lower side forms a part of the air channel wall of the second lower air outlet channel, and the third lower side is arranged close to the lower fan.

[0022] When the air conditioner operates in the single upper air outlet cooling mode, the lower volute tongue movement mechanism, the third lower side and the lower air blocking structure form a part of the volute profile of the lower fan.

[0023] When the air conditioner operates in the single lower air outlet heating mode, the third upper side and the upper air blocking structure form a part of the volute profile of the upper fan.

[0024] In the technical solution, the third upper side arranged close to the first centrifugal fan system is arc-shaped.

[0025] The third lower side arranged close to the second centrifugal fan system is arc-shaped.

[0026] The upper air blocking structure, the second upper air blocking structure, the lower air blocking structure and the second lower air blocking structure are all arc-shaped.

[0027] In the technical solution, the air conditioner further includes:

[0028] The heat exchanger assembly is arranged in the body shell passage and is used for heat exchange of the airflow flowing through the body shell passage.

[0029] When the air conditioner operates in the single upper air outlet cooling mode, the airflow entering from the third air vent enters the lower air outlet channel and enters the body shell passage through the opened lower return air vent, the airflows entering from the second air vent and the fourth air vent directly enter the body shell passage, and after heat exchange with the heat exchanger assembly, a part of the airflows are discharged from the first air vent after passing through the upper fan and the upper air outlet channel, and another part of the airflows are discharged from the first air vent after passing through the lower fan, the intermediate air channel and the upper air outlet channel.

[0030] When the air conditioner runs the upper air outlet heating mode, the air current from the first air vent enters the upper air outlet duct and enters the machine shell channel through the opened upper return air vent, the air current from the second air vent and the fourth air vent directly enters the machine shell channel, after the air current in the machine shell channel exchanges heat with the heat exchanger assembly, part of the air current is discharged from the third air vent through the upper fan, the middle air duct and the lower air outlet duct, and the other part of the air current is discharged from the third air vent through the lower fan and the lower air outlet duct.

[0031] When the air conditioner runs the upper and lower air outlet heating mode, the air current from the second air vent and the fourth air vent enters the machine shell channel, after the air current in the machine shell channel exchanges heat with the heat exchanger assembly, part of the air current is discharged from the first air vent through the upper fan and the upper air outlet duct, and the other part of the air current is discharged from the third air vent through the lower fan and the lower air outlet duct.

[0032] In the above technical solution, the heat exchanger assembly includes opposite first and second heat exchange parts, the upper part of the first heat exchange part and the upper part of the second heat exchange part are connected by a first connecting part, the lower part of the first heat exchange part and the lower part of the second heat exchange part are connected by a second connecting part, and the first heat exchange part, the second heat exchange part, the first connecting part and the second connecting part form the heat exchanger assembly with an open cavity in the middle part.

[0033] The air duct component is arranged in the open cavity in the middle part of the heat exchanger assembly, and the axial ends of the upper fan in the air duct component correspond to the first and second heat exchange parts respectively, and the axial ends of the lower fan in the air duct component correspond to the first and second heat exchange parts respectively.

[0034] In the above technical solution, the first heat exchange part includes a first heat exchange part upper part corresponding to the axial one end of the upper fan, and a first heat exchange part lower part corresponding to the axial one end of the lower fan.

[0035] The second heat exchange part includes a second heat exchange part upper part corresponding to the axial other end of the upper fan, and a second heat exchange part lower part corresponding to the axial other end of the lower fan.

[0036] The first heat exchange part upper part and the first heat exchange part lower part form a V-shaped heat exchange part with the notch facing one side of the air duct component, and the second heat exchange part upper part and the second heat exchange part lower part form a V-shaped heat exchange part with the notch facing the other side of the air duct component.

[0037] In the above technical solution, the air conditioner further includes an upper channel and a lower channel.

[0038] The lower end of the upper channel is communicated with the upper air outlet duct, and the upper end is communicated with the first air vent.

[0039] The upper end of the lower channel is communicated with the lower air outlet duct, and the lower end is communicated with the third air vent.

[0040] In the above technical solution, the machine body further comprises:

[0041] The air inlet component has an open front portion and an open upper portion, and an accommodation space is formed inside the air inlet component;

[0042] The panel component is arranged at the open position of the front portion of the air inlet component;

[0043] The top cover component is arranged at the open position of the upper portion of the air inlet component;

[0044] The base component is arranged at the lower portion of the air inlet component;

[0045] The air inlet component, the top cover component and the panel component define an air frame having a first air vent and a second air vent that are open upward, and the air inlet component, the base component and the panel component define a third air vent that is open forward and a fourth air vent that is open downward.

[0046] The upper air duct component comprises:

[0047] The upper air duct housing comprises a first upper air duct housing, a second upper air duct housing, and a first upper side plate and a second upper side plate connected between the first upper air duct housing and the second upper air duct housing, and the first upper air duct housing, the second upper air duct housing, the first upper side plate and the second upper side plate together enclose an upper air duct cavity;

[0048] The upper air duct cavity comprises an upper fan air duct for accommodating an upper fan, a first upper air duct and a second upper air duct located on both sides of a preset rotation axis of the upper fan air duct and communicating with the upper fan air duct, and the first upper air duct forms a first upper outlet at an end away from the upper fan air duct, and the second upper air duct forms a second upper outlet at an end away from the upper fan air duct;

[0049] The upper air duct component is provided with an upper partition at a side of the first upper air duct communicating with the upper fan air duct, and the upper partition divides the first upper air duct into a first upper outflow duct and a second upper outflow duct at the side communicating with the upper fan air duct, the communication port of the first upper outflow duct with the upper fan air duct is a first upper air vent, the communication port of the second upper outflow duct with the upper fan air duct is a second upper air vent, and the side away from the upper fan air duct of the first upper outflow duct and the second upper outflow duct both communicates with the first upper outlet;

[0050] The first upper air duct housing is provided with a first upper return air vent communicating with the first upper outflow duct;

[0051] The upper partition includes a first upper side, a second upper side and a third lower side, wherein the first upper side and the inner wall of the first upper air duct housing form a first upper air outlet duct, the second upper side and the inner wall of the second upper air duct housing form a second upper air outlet duct, and the third upper side faces the inner side of the upper fan duct.

[0052] The upper air duct component is equipped with an upper volute motion mechanism in the upper fan air duct. The upper volute motion mechanism can slide circumferentially in the upper fan air duct around a preset rotation axis. The upper volute motion mechanism has a first upper working position and a second upper working position on its circumferential sliding trajectory. When the upper volute motion mechanism slides to the first upper working position, the upper fan air duct is shut off from the first upper air outlet duct and connected to the second upper air outlet duct and the second upper air duct. When the upper volute motion mechanism slides to the second upper working position, the upper fan air duct is connected to the first upper air outlet duct and shut off from the second upper air outlet duct and the second upper air duct.

[0053] The upper ventilation component is also provided with an upper wind deflector structure one and an upper wind deflector structure two. The upper wind deflector structure one can be controlled to selectively open one of the upper return air vent and the first upper ventilation vent while closing the other. The upper wind deflector structure two can be controlled to selectively open or close the second upper ventilation vent.

[0054] In the above technical solution, the air duct component further includes: a lower air duct component, which includes:

[0055] The lower air duct housing includes a first lower air duct housing, a second lower air duct housing, and a first lower side plate and a second lower side plate connected between the first lower air duct housing and the second lower air duct housing. The first lower air duct housing, the second lower air duct housing, the first lower side plate and the second lower side plate together form a lower air duct cavity.

[0056] The downdraft cavity includes a downdraft duct for accommodating the downdraft fan, a first downdraft duct and a second downdraft duct located on both sides of the preset rotation axis of the downdraft fan duct and connected to the downdraft fan duct. The end of the first downdraft duct away from the downdraft fan duct forms a first downdraft outlet, and the end of the second downdraft duct away from the downdraft fan duct forms a second downdraft outlet.

[0057] The downdraft component has a lower partition at the connection point between the first downdraft and the downdraft fan duct on one side. The lower partition divides the first downdraft into a first downdraft outlet and a second downdraft outlet at the connection point with the downdraft fan duct. The connection point between the first downdraft outlet and the downdraft fan duct is the first downdraft vent, and the connection point between the second downdraft outlet and the downdraft fan duct is the second downdraft vent. The sides of the first downdraft outlet and the second downdraft outlet away from the downdraft fan duct are both connected to the first downdraft outlet.

[0058] The first lower air duct shell has a lower return air inlet that connects to the first lower air outlet duct;

[0059] The lower partition includes a first lower side, a second lower side and a third lower side, wherein the first lower side and the first lower air outlet form a first lower air outlet between the first lower air duct inner wall, the second lower side and the second lower air duct inner wall form a second lower air outlet, and the third lower side faces the lower fan air duct inner side;

[0060] The lower fan air duct is provided with a lower volute tongue movement mechanism, which can slide circumferentially in the lower fan air duct around a preset rotation axis of the lower fan air duct, and has a first lower working position and a second lower working position in the circumferential sliding track of the lower volute tongue movement mechanism. When the lower volute tongue movement mechanism slides to the first lower working position, the lower fan air duct is closed with the first lower air outlet, and is communicated with the second lower air outlet and the second lower air duct.

[0061] The lower ventilation component is also provided with a lower wind blocking structure one and a lower wind blocking structure two, wherein the lower wind blocking structure one can be controlled to selectively open one of the first lower return air outlet and the first lower ventilation outlet while closing the other one, and the lower wind blocking structure two can be controlled to selectively open or close the second lower ventilation outlet.

[0062] The upper ventilation component is communicated with the second lower air outlet of the second lower air duct of the lower ventilation component through the second upper outlet of the second upper air duct.

[0063] In the above technical solution, the upper air duct component and the lower air duct component are symmetrically arranged with the connecting surface of the second upper outlet and the second lower outlet as the symmetry surface.

[0064] The second aspect of the embodiment 2 of the present application provides a supply air assembly, which includes an upper fan, a lower fan and the air duct component described above.

[0065] The upper fan is accommodated in the upper fan air duct of the air duct component, and the lower fan is accommodated in the lower fan air duct of the air duct component.

[0066] The third aspect of the embodiment 2 of the present application provides a cabinet type air conditioner, which includes the supply air assembly described above.

[0067] In the above technical solution, the cabinet type air conditioner includes a machine body, the supply air assembly is arranged inside the machine body, and a machine body shell passage is defined between the outside of the supply air assembly and the machine body to communicate the axial air inlet of the upper fan and the axial air inlet of the lower fan.

[0068] The upper part of the machine body is provided with a first ventilation outlet and a second ventilation outlet, and the lower part of the machine body is provided with a third ventilation outlet and a fourth ventilation outlet.

[0069] The first vent and the third vent are communicated with upper and lower ends of the fuselage shell passage, the second vent is communicated with the first upper outlet, and the fourth vent is communicated with the first lower outlet.

[0070] In the above technical solution, the air conditioner further comprises:

[0071] The heat exchanger assembly is arranged in the fuselage shell passage and is used for heat exchange of the airflow flowing through the fuselage shell passage.

[0072] Compared with the prior art, the above technical solution has the following beneficial effects:

[0073] The embodiment of the present application provides a cabinet type air supply air conditioner with reversible air supply and return air, solves the problem that the current air conditioner has fixed air supply and return air positions, resulting in uneven temperature distribution in a certain working condition, and the energy saving and comfort experience of the air conditioner under different working conditions cannot be simultaneously optimal. BRIEF DESCRIPTION OF DRAWINGS

[0074] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0075] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the cabinet type air conditioner according to the embodiment of the present application;

[0076] Figure 2 FIG. 2 is an exploded structural schematic diagram of the cabinet type air conditioner according to the embodiment of the present application;

[0077] Figure 3 FIG. 3 is a schematic diagram of the distribution and composition of the second vent and the fourth vent in the cabinet type air conditioner according to the embodiment of the present application;

[0078] Figure 4 FIG. 4 is a schematic diagram of the cross-sectional structure of the air conditioner in the cabinet type air conditioner according to the embodiment of the present application when air is supplied from the top and the bottom;

[0079] Figure 5 FIG. 5 is a schematic diagram of the cross-sectional structure of the air conditioner in the cabinet type air conditioner according to the embodiment of the present application when air is supplied from the top;

[0080] Figure 6 FIG. 6 is a schematic diagram of the cross-sectional structure of the air conditioner in the cabinet type air conditioner according to the embodiment of the present application when air is supplied from the bottom;

[0081] Figure 7 FIG. 7 is a schematic diagram of the three-dimensional structure of the air duct component in the cabinet type air conditioner according to the embodiment of the present application;

[0082] Figure 8 FIG. 8 is a schematic diagram of the cross-sectional structure of the air duct component in the cabinet type air conditioner according to the embodiment of the present application, and the dashed line position in the figure is the butt joint position of the upper air duct component and the lower air duct component;

[0083] Figure 9 The figure is a schematic view of the structure of the volute cover in the air duct component of the cabinet air conditioner of the present application. The dotted line position in the figure is the butt joint position of the upper air duct component and the lower air duct component.

[0084] Figure 10 The figure is a schematic view of the three-dimensional structure of the heat exchanger assembly in the cabinet air conditioner of the present application.

[0085] Wherein:

[0086] 1 - body; 1a - air inlet component; 1b - panel component; 1c - top cover component; 1d - base component; 11 - first air vent; 12 - second air vent; 13 - third air vent; 14 - fourth air vent;

[0087] 2 - air duct component; 2a - upper air duct component; 2a1 - first upper air duct shell; 2a2 - second upper air duct shell; 2b - lower air duct component; 2b1 - first lower air duct shell; 2b2 - second lower air duct shell; 2c - first upper outlet; 2d - second upper outlet; 2e - first lower outlet; 2f - second lower outlet; 21 - upper air outlet duct; 211 - first upper air outlet duct; 2111 - upper return air vent; 212 - second upper air outlet duct; 22 - upper fan air duct; 23 - middle air duct; 24 - lower fan air duct; 25 - lower air outlet duct; 251 - first lower air outlet duct; 2511 - lower return air vent; 252 - second lower air outlet duct;

[0088] 3 - body shell passage;

[0089] 4 - upper fan; 41 - upper volute tongue movement mechanism;

[0090] 5 - lower fan; 51 - lower volute tongue movement mechanism;

[0091] 6 - upper partition; 61 - first upper side edge; 62 - second upper side edge; 63 - third upper side edge;

[0092] 7 - lower partition; 71 - first lower side edge; 72 - second lower side edge; 73 - third lower side edge;

[0093] 81 - upper air blocking structure one; 82 - upper air blocking structure two; 83 - lower air blocking structure one; 84 - lower air blocking structure two;

[0094] 9 - heat exchanger assembly; 91 - first heat exchange part; 911 - upper part of the first heat exchange part; 912 - lower part of the first heat exchange part; 92 - second heat exchange part; 921 - upper part of the second heat exchange part; 922 - lower part of the second heat exchange part; 93 - first connecting part; 94 - second connecting part;

[0095] 100 - upper passage;

[0096] 200-Lower Channel. Detailed Implementation

[0097] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0098] Current air conditioners with fixed supply and return air positions result in uneven temperature distribution under certain operating conditions, failing to simultaneously achieve optimal energy efficiency and comfort across different operating scenarios. This invention provides a cabinet-type air conditioner with reversible supply and return air, addressing the problem of uneven temperature distribution under certain operating conditions caused by fixed supply and return air positions, thus preventing the simultaneous achievement of optimal energy efficiency and comfort across different operating scenarios.

[0099] The following is in conjunction with the appendix Figure 1 -Appendix Figure 10 The technical solution of this embodiment is described in detail. Unless otherwise specified, the following implementation methods and embodiments can be combined with each other.

[0100] Example 1

[0101] like Figures 1-10 As shown, this embodiment proposes a cabinet-type air conditioner, which includes:

[0102] The body 1 has a first ventilation port 11 and a second ventilation port 12 on its upper part, and a third ventilation port 13 and a fourth ventilation port 14 on its lower part.

[0103] The air duct component 2 is located inside the body 1. The exterior of the air duct component 2 and the body 1 define the body shell channel 3. The interior is formed by the upper air outlet duct 21, the upper fan air duct 22, the middle air duct 23, the lower fan air duct 24 and the lower air outlet duct 25 arranged vertically. The upper part of the body shell channel 3 is connected to the second ventilation port 12 and the lower part is connected to the fourth ventilation port 14. The upper part of the upper air outlet duct 21 is connected to the first ventilation port 11 and the lower part of the lower air outlet duct 25 is connected to the third ventilation port 13.

[0104] The centrifugal fan system includes an upper fan 4 located in the upper fan duct 22 and a lower fan 5 located in the lower fan duct 24. The upper fan 4 has an upper air inlet at both axial ends that connects to the casing channel 3, and the lower fan 5 has a lower air inlet at both axial ends that connects to the casing channel 3.

[0105] The partition includes an upper partition 6 arranged in the upper air outlet duct 21 and a lower partition 7 arranged in the lower air outlet duct 25, the upper partition 6 separates the upper air outlet duct 21 into a first upper air outlet duct 211 and a second upper air outlet duct 212, and the lower partition 7 separates the lower air outlet duct 25 into a first lower air outlet duct 251 and a second lower air outlet duct 252;

[0106] The wind blocking structure includes an upper wind blocking structure and a lower wind blocking structure, the upper wind blocking structure includes an upper wind blocking structure one 81 rotatably arranged on the duct wall of the first upper air outlet duct 211 and an upper wind blocking structure two 82 rotatably arranged on the duct wall of the second upper air outlet duct 212, the duct wall of the first upper air outlet duct 211 is provided with the upper return air outlet 2111 and the channel 3 connecting the machine body shell, the rotatably arranged upper wind blocking structure one 81 can open or close the upper return air outlet 2111, wherein the rotatably arranged upper wind blocking structure one 81 is designed to block the communication between the upper air blower duct 22 and the first upper air outlet duct 211 while opening the upper return air outlet 2111 or to make the first upper air outlet duct 211 and the upper air blower duct 22 communicate while closing the upper return air outlet 2111, the rotatably arranged upper wind blocking structure two 82 can make the second upper air outlet duct 212 and the intermediate air duct 23 communicate or block the communication between the second upper air outlet duct 213 and the intermediate air duct 23, the lower wind blocking structure includes a lower wind blocking structure one 83 rotatably arranged on the duct wall of the first lower air outlet duct 251 and a lower wind blocking structure two 84 rotatably arranged on the duct wall of the second lower air outlet duct 252, the duct wall of the first lower air outlet duct 251 is provided with the lower return air outlet 2511 and the channel 3 connecting the machine body shell, the rotatably arranged lower wind blocking structure one 83 can open or close the lower return air outlet 2511, wherein the rotatably arranged lower wind blocking structure one 83 is designed to block the communication between the lower air blower duct 24 and the first lower air outlet duct 251 while opening the lower return air outlet 2511 or to make the first lower air outlet duct 251 and the lower air blower duct 24 communicate while closing the lower return air outlet 2511, the rotatably arranged lower wind blocking structure two 84 can make the second lower air outlet duct 252 and the intermediate air duct 23 communicate or block the communication between the second lower air outlet duct 252 and the intermediate air duct 23;

[0107] The upper and lower volute movement mechanisms 41 and 51 can be driven to move, the upper volute movement mechanism 41 can be driven to move to a first position or a second position, when the upper volute movement mechanism 41 moves to the first position, the upper fan 4 blows air upward, when the upper volute movement mechanism 41 moves to the second position, the upper fan 4 blows air downward, the lower volute movement mechanism 51 can be driven to move to a third position or a fourth position, when the lower volute movement mechanism 51 is driven to move to the third position, the lower fan 5 blows air upward, when the lower volute movement mechanism 5 is driven to move to the fourth position, the lower fan 5 blows air downward.

[0108] Preferably, the upper fan air duct 22 and the lower fan air duct 24 are both centrifugal air ducts, and the upper fan 4 and the lower fan 5 are both centrifugal fans.

[0109] It should be noted that the upper and lower volute movement mechanisms in the embodiment of the present application borrow mature mechanisms, and are not described in detail in the embodiment of the present application.

[0110] Specifically, the air conditioner includes a single upper air-out cooling mode, a single lower air-out cooling mode and a cooling / heating upper and lower air-out mode; of course, the air conditioner in the present application is not limited to the three operating modes described above, and the working principle of the air conditioner in the embodiment of the present application is illustrated by taking the three operating modes described above as examples: in detail,

[0111] As Figure 5As shown, when the air conditioner runs in the upper air outlet cooling mode, the upper baffle structure one 81 is controlled to rotate to close the upper return air port 2111, at this time the upper fan air duct 22 is communicated with the first upper air outlet duct 211, the upper baffle structure two 82 is controlled to rotate to make the intermediate air duct 23 and the second upper air outlet duct 212 communicated, the upper lobe movement mechanism 41 is controlled to move to the first position to make the upper fan 4 blow air upward, the lower baffle structure one 83 is controlled to rotate to open the lower return air port 2511, at this time the lower fan air duct 24 is not communicated with the first lower air outlet duct 251, the lower baffle structure two 84 is controlled to rotate to block the communication between the second lower air outlet duct 252 and the intermediate air duct 23, the lower lobe movement mechanism 51 is controlled to move to the third position to make the lower fan 5 blow air upward; at this time, indoor air from the third air vent 13 of the lower part of the air conditioner enters into the machine body channel 3 through the lower return air port 82, another part of air enters into the machine body channel 3 through the second air vent 12 of the upper part of the air conditioner and the fourth air vent 14 of the lower part of the air conditioner, the air entering into the machine body channel 3 flows to the opposite sides of the machine body, a part of air enters into the cavity of the upper fan 4 from the axial direction of the upper fan 4 through the heat exchanger assembly under the action of the upper fan 4, and finally is blown out from the first air vent 11 of the upper part of the air conditioner through the first upper air outlet duct 211 under the action of the upper fan 4, another part of air enters into the cavity of the lower fan 5 from the axial direction of the lower fan 5 through the heat exchanger assembly under the action of the lower fan 5, and finally is blown out from the first air vent 11 of the upper part of the air conditioner through the intermediate air duct 23 and the second upper air outlet duct 212 under the action of the lower fan 5.

[0112] As Figure 6As shown, when the air conditioner runs in the single lower air outlet heating mode, the upper baffle structure 81 is controlled to rotate to open the upper return air port 2111, at this time the upper fan air duct 22 and the first upper air outlet duct 211 are not communicated, the upper baffle structure 82 is controlled to rotate to block the communication between the intermediate air duct 23 and the second upper air outlet duct 212, the upper lobe movement mechanism 41 is controlled to move to the second position to make the upper fan 4 blow air downward, the lower baffle structure 83 is controlled to rotate to close the lower return air port 2511, at this time the lower fan air duct 24 and the first lower air outlet duct 251 are communicated, the lower baffle structure 84 is controlled to rotate to make the second lower air outlet duct 252 and the intermediate air duct 23 communicated, the lower lobe movement mechanism 51 is controlled to move to the fourth position to make the lower fan 4 blow air downward; at this time, indoor air from the first air vent 11 of the upper part of the air conditioner enters into the machine body channel 3 through the upper return air port 81, another part of the air enters into the machine body channel 3 through the second air vent 12 of the upper part of the air conditioner and the fourth air vent 14 of the lower part of the air conditioner, the air entering into the machine body channel 3 flows to the opposite sides of the machine body, a part of the air enters into the cavity of the lower fan 5 from the axial direction of the lower fan 5 under the action of the lower fan 5, and finally is blown out from the third air vent 13 of the lower part of the air conditioner through the first lower air outlet duct 251 under the action of the lower fan 5, another part of the air enters into the cavity of the upper fan 4 from the axial direction of the upper fan 4 under the action of the upper fan 4, and finally is blown out from the third air vent 13 of the lower part of the air conditioner through the intermediate air duct 23 and the second lower air outlet duct 252 under the action of the upper fan.

[0113] As Figure 4As shown, when the air conditioner runs in the cooling / heating up and down air outlet mode, the upper baffle structure one 81 is controlled to rotate to close the upper return air outlet 2111, at this time the upper fan air duct 22 and the first upper air outlet 211 are communicated, the upper baffle structure two 82 is controlled to rotate to block the communication between the intermediate air duct 23 and the second upper air outlet 212, the upper volute movement mechanism 41 is controlled to move to the first position to make the upper fan 4 blow air upward, the lower baffle structure one 83 is controlled to rotate to close the lower return air outlet 2511, at this time the lower fan air duct 24 and the first lower air outlet 251 are communicated, the lower baffle structure two 84 is controlled to rotate to block the communication between the intermediate air duct 23 and the second lower air outlet 252, the lower volute movement mechanism 51 is controlled to move to the fourth position to make the lower fan 5 blow air downward. At this time, indoor air enters the machine body channel 3 from the second air inlet 12 of the upper part of the air conditioner and the fourth air inlet 14 of the lower part of the air conditioner, the air entering the machine body channel 3 flows to the opposite sides of the machine body, part of the air enters the cavity of the lower fan 5 from the axial direction of the lower fan 5 under the action of the lower fan 5, passes through the heat exchanger assembly, and is finally blown out from the third air outlet 13 of the lower part of the air conditioner under the action of the lower fan 5, another part of the air enters the cavity of the upper fan 4 from the axial direction of the upper fan 4 under the action of the upper fan 4, passes through the heat exchanger assembly, and is finally blown out from the first air outlet 211 of the air conditioner under the action of the upper fan 4.

[0114] It can be seen that the air conditioner in the embodiment of the present application changes the air inlet and outlet positions with different air outlet modes, the third air inlet 13 of the lower part of the air conditioner is switched to an air inlet in the cooling mode, realizing lower inlet and upper outlet, the first air inlet 11 of the upper part of the air conditioner is switched to an air inlet in the heating mode, realizing upper inlet and lower outlet, and the air inlet and outlet are switched with different modes.

[0115] Further, as shown, Figures 4-6 when the air conditioner runs in the single upper air outlet cooling mode, the upper volute movement mechanism 41 and the upper baffle structure one 81 constitute part of the volute profile of the upper fan 4, the lower volute movement mechanism 51, the lower partition 7 and the lower baffle structure two 84 constitute part of the volute profile of the lower fan 5;

[0116] when the air conditioner runs in the single lower air outlet heating mode, the upper volute movement mechanism 41, the upper partition 6 and the upper baffle structure two 82 constitute part of the volute profile of the upper fan 4, and the lower volute movement mechanism 51 and the lower baffle structure one 81 constitute part of the volute profile of the lower fan 5;

[0117] when the air conditioner runs in the cooling / heating up and down air outlet mode, the upper volute movement mechanism 41 and the upper baffle structure one 81 constitute part of the volute profile of the upper fan 4, and the lower volute movement mechanism 51 and the lower baffle structure one 83 constitute part of the volute profile of the lower fan 5.

[0118] Since the centrifugal fan is noisier than other kinds of fans when in operation, in the embodiment of the present application, the profile of the air duct is formed by combining the volute tongue movement mechanism (upper volute tongue movement mechanism and lower volute tongue movement mechanism) and the partition (upper partition and lower partition) and the wind blocking structure (upper wind blocking structure one, upper wind blocking structure two, lower wind blocking structure one and lower wind blocking structure two) in different operation modes, so that the noise generated by the air conditioner when in operation can be reduced.

[0119] Specifically, as shown in Figure 8 and Figure 9 , the upper partition 6 comprises an upper triangular blocking block arranged in the upper air outlet duct 21, and the lower partition 7 comprises a lower triangular blocking block arranged in the lower air outlet duct 24;

[0120] The upper triangular blocking block comprises a first upper side 61, a second upper side 62 and a third upper side 63 connected in sequence, the first upper side 61 forms the air duct wall of at least part of the first upper air outlet duct 211, the second upper side 62 forms the air duct wall of at least part of the second upper air outlet duct 212, and the third upper side 63 is arranged close to the upper fan 4;

[0121] The lower triangular blocking block comprises a first lower side 71, a second lower side 72 and a third lower side 73 connected in sequence, the first lower side 71 forms the air duct wall of at least part of the first lower air outlet duct 251, the second lower side 72 forms the air duct wall of at least part of the second lower air outlet duct 252, and the third lower side 73 is arranged close to the lower fan 5; wherein;

[0122] When the air conditioner operates in the single upper air outlet cooling mode, the lower volute tongue movement mechanism 51, the third lower side 73 and the lower wind blocking structure two 84 form part of the volute profile of the lower fan 5;

[0123] When the air conditioner operates in the single lower air outlet heating mode, the third upper side 63 and the upper wind blocking structure two 82 form part of the volute profile of the upper fan 4.

[0124] Of course, in some alternative embodiments, the above-mentioned upper partition 6 and lower partition 7 are not limited to triangular blocking blocks, as long as the partition (upper partition and lower partition) arranged can achieve the above-mentioned functions. Of course, in the embodiment of the present application, the upper partition 6 and the lower partition 7 are preferably arranged as triangular blocking blocks.

[0125] As shown in Figure 8 and Figure 9 , in order to further reduce the noise generated by the air conditioner when in operation, in the embodiment of the present application, the third upper side 63 arranged close to the first centrifugal fan system 4 is configured as an arc shape;

[0126] The third lower side 73, which is arranged close to the second centrifugal fan system 5, is arc-shaped;

[0127] The upper wind blocking structure one 81, the upper wind blocking structure two 82, the lower wind blocking structure one 83 and the lower wind blocking structure two 84 are all arc-shaped.

[0128] In this way, when the air conditioner operates in different modes, the combination of the volute tongue movement mechanism (upper volute tongue movement mechanism and lower volute tongue movement mechanism), the partition (upper partition and lower partition) and the wind blocking structure (upper wind blocking structure one, upper wind blocking structure two, lower wind blocking structure one and lower wind blocking structure two) forms a continuous arc-shaped curve, thereby further reducing the wind noise.

[0129] Of course, the air conditioner described above also comprises a heat exchanger assembly 9 as shown in the drawings, in particular; Figure 1

[0130] The heat exchanger assembly 9 is arranged in the body shell passage 3 and is used to exchange heat with the air flowing through the body shell passage 3.

[0131] When the air conditioner operates in the upper air outlet cooling mode, the air entering from the third air vent 13 enters the lower air outlet passage 25 and enters the body shell passage 3 through the opened lower return air vent 2511, the air entering from the second air vent 12 and the fourth air vent 14 directly enters the body shell passage 3, and after the air entering the body shell passage 3 exchanges heat with the heat exchanger assembly 9, part of the air flows out from the first air vent 11 after passing through the upper air fan 4 and the upper air outlet passage 21, and the other part of the air flows out from the first air vent 21 after passing through the lower air fan 5, the intermediate air passage 23 and the upper air outlet passage 21.

[0132] When the air conditioner operates in the lower air outlet heating mode, the air entering from the first air vent 11 enters the upper air outlet passage 21 and enters the body shell passage 3 through the opened upper return air vent 2111, the air entering from the second air vent 12 and the fourth air vent 14 directly enters the body shell passage 3, and after the air entering the body shell passage 3 exchanges heat with the heat exchanger assembly 9, part of the air flows out from the third air vent 13 after passing through the upper air fan 4, the intermediate air passage 23 and the lower air outlet passage 25, and the other part of the air flows out from the third air vent 13 after passing through the lower air fan 4 and the lower air outlet passage 25.

[0133] When the air conditioner operates in the cooling / heating upper and lower air outlet mode, the air entering from the second air vent 12 and the fourth air vent 14 enters the body shell passage 3, and after the air entering the body shell passage 3 exchanges heat with the heat exchanger assembly 9, part of the air flows out from the first air vent 11 after passing through the upper air fan 4 and the upper air outlet passage 21, and the other part of the air flows out from the third air vent 13 after passing through the lower air fan 5 and the lower air outlet passage 25.​

[0134] That is, all the wind entering the fuselage shell passage 3 needs to pass through the heat exchanger assembly 9 before entering the air duct component 2, and is finally blown out from the air outlet under the action of the air duct component 2.

[0135] Specifically, as shown in Figure 10 The heat exchanger assembly 9 includes opposite first heat exchange part 91 and second heat exchange part 92, the upper part of the first heat exchange part 91 and the upper part of the second heat exchange part 92 are connected by the first connecting part 93, the lower part of the first heat exchange part 91 and the lower part of the second heat exchange part 92 are connected by the second connecting part 94, the first heat exchange part 91, the second heat exchange part 92, the first connecting part 93 and the second connecting part 94 are surrounded to form the heat exchanger assembly 9 with an open cavity in the middle part;

[0136] The air duct component 2 is placed in the open cavity in the middle part of the heat exchanger assembly 9, wherein the axial ends of the upper fan 4 in the air duct component 2 correspond to the first heat exchange part 91 and the second heat exchange part 92 respectively, and the axial ends of the lower fan 5 in the air duct component 2 correspond to the first heat exchange part 91 and the second heat exchange part 92 respectively.

[0137] More specifically, the first heat exchange part 91 includes a first heat exchange part upper part 911 corresponding to one axial end of the upper fan 4, and a first heat exchange part lower part 912 corresponding to one axial end of the lower fan 5;

[0138] The second heat exchange part 92 includes a second heat exchange part upper part 921 corresponding to the other axial end of the upper fan 4, and a second heat exchange part lower part 922 corresponding to the other axial end of the lower fan 5;

[0139] Wherein the first heat exchange part upper part 911 and the first heat exchange part lower part 912 constitute a V-shaped heat exchange part with the notch facing one side of the air duct component 2, and the second heat exchange part upper part 921 and the second heat exchange part lower part 922 constitute a V-shaped heat exchange part with the notch facing the other side of the air duct component 2.

[0140] That is, the first heat exchange part upper part 911, the first heat exchange part lower part 912, the second heat exchange part upper part 921 and the second heat exchange part lower part 922 in the embodiment of the application are all inclinedly arranged in the fuselage shell passage 3, so that when the airflow enters the fuselage shell passage 3 and exchanges heat with the corresponding heat exchange part, on the one hand, the air resistance can be reduced, and on the other hand, the heat exchange area can be increased, thereby improving the heat exchange effect on the airflow.

[0141] In any of the above embodiments, as shown in Figure 1 The air conditioner further comprises an upper passage 100 and a lower passage 200;

[0142] The lower end of the upper passage 100 communicates with the upper air outlet 21, and the upper end communicates with the first air vent 11;

[0143] The upper end of the lower passage 200 is communicated with the lower air outlet 25, and the lower end is communicated with the third air vent 13.

[0144] In any of the above embodiments, the machine body 1 further comprises:

[0145] The air inlet component 1a is provided with an open front and upper part, and an accommodation space is formed inside;

[0146] The panel component 1b is arranged at the open position of the front part of the air inlet component 1a;

[0147] The top cover component 1c is arranged at the open position of the upper part of the air inlet component 1a;

[0148] The base component 1d is arranged at the lower part of the air inlet component 1a;

[0149] The air inlet component 1a, the top cover component 1c, and the panel component 1b define an air frame with the first air vent 11 and the second air vent 12 opening upward, and the air inlet component 1a, the base component 1d, and the panel component 1b define the third air vent 13 opening forward and the fourth air vent 14 opening downward.

[0150] Preferably, the above-mentioned upper wind blocking structure one 81, upper wind blocking structure two 82, lower wind blocking structure one 83, and lower wind blocking structure two 84 are preferably provided in the form of a baffle.

[0151] Embodiment 2

[0152] As shown in Figure 8 and Figure 9 The first aspect of the present embodiment provides an air duct component, which comprises an upper air duct component 2a, and the upper air duct component 2a comprises:

[0153] The upper air duct shell comprises a first upper air duct shell 2a1, a second upper air duct shell 2a2, and a first upper side plate and a second upper side plate connected between the first upper air duct shell 2a1 and the second upper air duct shell 2a2, which together enclose an upper air duct cavity;

[0154] The upper air duct cavity comprises an upper fan air duct 22 for accommodating an upper fan 4, a first upper air duct and a second upper air duct located on both sides of the preset rotation axis of the upper fan air duct 22 and communicated with the upper fan air duct 22, and the first upper air duct forms a first upper outlet 2c at one end away from the upper fan air duct 22, and the second upper air duct forms a second upper outlet 2d at one end away from the upper fan air duct 22;

[0155] The upper air duct component 2a is provided with an upper partition 6 at a side of the first upper air duct communicating with the upper air duct 22, the upper partition 6 divides the first upper air duct at the communicating side with the upper air duct 22 into a first upper air outlet 211 and a second upper air outlet 212, the communicating port of the first upper air outlet 211 with the upper air duct 22 is a first upper air vent, the communicating port of the second upper air outlet 212 with the upper air duct 22 is a second upper air vent, and the side of the first upper air outlet 211 and the second upper air outlet 212 away from the upper air duct 22 is communicated with the first upper outlet 2c;

[0156] The first upper air duct shell 2a1 is provided with a first upper return air vent 2111 communicating with the first upper air outlet 211;

[0157] The upper partition 6 comprises a first upper side 61, a second upper side 62 and a third upper side 63, wherein the first upper side 61 and the inner wall of the first upper air duct shell 2a1 form the first upper air outlet 211, the second upper side 62 and the inner wall of the second upper air duct shell 2a2 form the second upper air outlet 212, and the third upper side 63 faces the inner side of the upper air duct 22;

[0158] The upper air duct component 2a is provided with an upper volute tongue movement mechanism 41 at the upper air duct 22, the upper volute tongue movement mechanism 41 can slide in the circumferential direction of the upper air duct 22 around a preset rotation axis of the upper air duct 22, and the upper volute tongue movement mechanism 41 has a first upper working position and a second upper working position on the circumferential sliding track thereof, when the upper volute tongue movement mechanism 41 slides to the first upper working position, the upper air duct 22 is closed with the first upper air outlet 211 and is communicated with the second upper air outlet 212 and the second upper air duct, and when the upper volute tongue movement mechanism 41 slides to the second upper working position, the upper air duct 22 is communicated with the first upper air outlet 211 and is closed with the second upper air outlet 212 and the second upper air duct;

[0159] The upper air duct component 2a is further provided with an upper air blocking structure one 81 and an upper air blocking structure two 82, wherein the upper air blocking structure one 81 can be controlled to selectively open one of the first upper return air vent 2111 and the first upper air vent and close the other one, and the upper air blocking structure two 82 can be controlled to selectively open or close the second upper air vent.

[0160] Through the above structure, the air duct component provided in the embodiment can realize multiple air outlet modes, specifically:

[0161] When the upper volute tongue movement mechanism 41 slides to the first upper working position, the upper fan air duct 22 is shut off from the first upper air outlet 211, and the upper fan air duct 22 is communicated with the second upper air outlet 212, the second upper air duct. At this time, the upper air baffle structure one 81 can be controlled to close the upper return air outlet 2111, and the upper air baffle structure two 82 is controlled to close the second upper air outlet. When the air duct component is installed in the body of the air conditioner, the airflow can enter the upper fan passage 22 from the body shell passage defined between the air duct component and the body, and be discharged from the second upper outlet 2d, as shown in Figure 9 The second upper outlet 2d is located below, thereby realizing a single lower air outlet mode.

[0162] When the upper volute tongue movement mechanism 41 slides to the first upper working position, the upper fan air duct 22 is shut off from the first upper air outlet 211, and the upper fan air duct 22 is communicated with the second upper air outlet 212, the second upper air duct. At this time, the upper air baffle structure one 81 can be controlled to close the upper return air outlet 2111, and the upper air baffle structure two 82 is controlled to close the second upper air outlet. When the air duct component is installed in the body of the air conditioner, the airflow can enter the upper fan passage 22 from the body shell passage defined between the air duct component and the body, and be discharged from the second upper outlet 2d, as shown in Figure 9 The second upper outlet 2d is located below, thereby realizing a single lower air outlet mode. Since the first upper outlet 2c also takes in air at this time, the air volume of the single lower air outlet is also improved.

[0163] When the upper volute tongue movement mechanism 41 slides to the first upper working position, the upper fan air duct 22 is shut off from the first upper air outlet 211, and the upper fan air duct 22 is communicated with the second upper air outlet 212, the second upper air duct. At this time, the upper air baffle structure one 81 can be controlled to close the upper return air outlet 2111, and the upper air baffle structure two 82 is controlled to close the second upper air outlet. When the air duct component is installed in the body of the air conditioner, the airflow can enter the upper fan passage 22 from the body shell passage defined between the air duct component and the body, and be discharged from the second upper outlet 2d, as shown in Figure 9 The second upper outlet 2d is located below, thereby realizing a single lower air outlet mode. Since the first upper outlet 2c also takes in air at this time, the air volume of the single lower air outlet is also improved.

[0164] When the upper volute tongue movement mechanism 41 slides to the first upper working position, the upper fan air duct 22 is shut off from the first upper air outlet 211, and the upper fan air duct 22 is communicated with the second upper air outlet 212, the second upper air duct. At this time, the upper air baffle structure one 81 can be controlled to close the upper return air outlet 2111, and the upper air baffle structure two 82 is controlled to close the second upper air outlet. When the air duct component is installed in the body of the air conditioner, the airflow can enter the upper fan passage 22 from the body shell passage defined between the air duct component and the body, and be discharged from the second upper outlet 2d, as shown in Figure 9As shown, since the first upper air outlet 2c is shared by the first upper air outlet 211 and the second upper air outlet 212, when the first upper air outlet 211 is in operation, the air flow in the second upper air outlet 212 can be driven by the air flow in the first upper air outlet 211 under the action of negative pressure, and then discharged together from the first upper air outlet 2c, thereby improving the air volume in the case of single upper air outlet.

[0165] Of course, the upper air duct component 2a in the embodiment is not limited to the above-mentioned air outlet modes, and more air outlet modes can be realized by changing the positions of the upper worm tongue movement mechanism 41, the first upper air blocking structure 81 and the second upper air blocking structure 82, which will not be described one by one in the embodiment.

[0166] Further, the ventilation component in the embodiment further comprises a lower air duct component 2b, which comprises:

[0167] The lower air duct shell comprises a first lower air duct shell 2b1, a second lower air duct shell 2b2, and a first lower side plate and a second lower side plate connected between the first lower air duct shell 2b1 and the second lower air duct shell 2b2, which together enclose a lower air duct cavity;

[0168] The lower air duct cavity comprises a lower fan air duct 24 for accommodating a lower fan 5, a first lower air duct and a second lower air duct located on the two sides of the preset rotation axis of the lower fan air duct 24 and communicating with the lower fan air duct 24, and the first lower air duct forms a first lower air outlet 2e at one end away from the lower fan air duct 22, and the second lower air duct forms a second lower air outlet 2f at one end away from the lower fan air duct 22;

[0169] The lower air duct component 2b is provided with a lower partition 7 at the communication between the first lower air duct and one side of the lower fan air duct 22, and the lower partition 7 divides the first lower air duct into a first lower air outlet 251 and a second lower air outlet 252 at the communication with the lower fan air duct 24, the communication port of the first lower air outlet 251 with the lower fan air duct 24 is a first lower ventilation port, the communication port of the second lower air outlet 252 with the lower fan air duct 24 is a second lower ventilation port, and the side away from the lower fan air duct 24 of the first lower air outlet 251 and the second lower air outlet 252 both communicates with the first lower air outlet 2e;

[0170] The first lower air duct shell 2b1 is provided with a lower return air port 2511 communicating with the first lower air outlet 251;

[0171] The lower partition 7 comprises a first lower side 71, a second lower side 72 and a third lower side 73, wherein the first lower side 71 and the inner wall of the first lower air duct housing 2b1 form the first lower air outlet duct 251, the second lower side 72 and the inner wall of the second lower air duct housing 2b2 form the second lower air outlet duct 252, and the third lower side 73 faces the inner side of the lower air fan duct 24;

[0172] The lower air duct component 2b is provided with a lower volute tongue movement mechanism 51 in the lower air fan duct 24, which can slide circumferentially in the lower air fan duct 24 around a preset rotation axis of the lower air fan duct 24, and has a first lower working position and a second lower working position in the circumferential sliding track, when the lower volute tongue movement mechanism 51 slides to the first lower working position, the lower air fan duct 24 is closed with the first lower air outlet duct 251, and the lower air fan duct 24 is communicated with the second lower air outlet duct 252 and the second lower air duct, when the lower volute tongue movement mechanism 51 slides to the second lower working position, the lower air fan duct 24 is communicated with the first lower air outlet duct 251 and closed with the second lower air outlet duct 252 and the second lower air duct;

[0173] The lower air duct component 2b is also provided with a lower air blocking structure one 81 and a lower air blocking structure two 84, wherein the lower air blocking structure one 81 can be controlled to selectively open one of the first lower air return port 2511 and the first lower air supply port and close the other one, and the lower air blocking structure two 84 can be controlled to selectively open or close the second lower air supply port;

[0174] The upper air duct component 2a is communicated with the second lower air duct of the lower air duct component 2b through the second upper outlet 2d of the second upper air duct, and the communication between the second upper air duct of the upper air duct component 2a and the second lower air duct of the lower air duct component 2b forms the intermediate air duct 23.

[0175] Preferably, the upper air duct component 2a and the lower air duct component 2b are symmetrically arranged with the connecting surface of the second upper outlet 2d and the second lower outlet 2f as the symmetry plane.

[0176] That is, the air duct component in the embodiment is formed by butting the upper and lower air duct components which are symmetrical, and the lower air duct component 2b also has the air outlet mode as the upper air duct component 2a has, and the air outlet mode of the lower air duct component 2b will not be described again.

[0177] It is worth noting that when the upper air duct component 2a and the lower air duct component 2b are assembled together and installed in the cabinet air conditioner, the cabinet air conditioner at this time has the air outlet mode {up-down reversible air outlet} as the cabinet air conditioner mentioned in embodiment 1 has.

[0178] The second aspect of the embodiment provides a supply air assembly, which comprises an upper air fan, a lower air fan and the air duct component described above;

[0179] The upper fan 4 is accommodated in an upper fan air duct 22 of the air duct component, and the lower fan 5 is accommodated in a lower fan air duct 24 of the air duct component.

[0180] Preferably, the upper fan air duct 22 and the lower fan air duct 24 mentioned in the present embodiment are also centrifugal air ducts, and the upper fan 4 and the lower fan 5 are also centrifugal fans.

[0181] The third aspect of the present embodiment also provides a cabinet air conditioner comprising the air supply assembly mentioned above.

[0182] Specifically, as shown in Figures 1-10 The cabinet air conditioner comprises a machine body 1, the air supply assembly is arranged inside the machine body 1, and a machine body shell passage 3 is defined between the outside of the air supply assembly and the machine body 1, which communicates with the axial air inlet of the upper fan 4 and the axial air inlet of the lower fan 5.

[0183] The upper part of the machine body 1 is provided with a first air vent 11 and a second air vent 12, and the lower part of the machine body is provided with a third air vent 13 and a fourth air vent 14.

[0184] The first air vent 11 and the third air vent 13 communicate with the upper and lower ends of the machine body shell passage 3, the second air vent 12 communicates with the first upper outlet 2c, and the fourth air vent 14 communicates with the first lower outlet 2e.

[0185] That is, when the air duct component in the present embodiment is assembled in the machine body 1 of the cabinet air conditioner, the cabinet air conditioner formed has the same functions as the cabinet air conditioner provided in Embodiment 1.

[0186] That is, the cabinet air conditioner in the present embodiment also has a single upper air outlet refrigeration mode, a single lower air outlet refrigeration mode, and a refrigeration / heat upper and lower air outlet mode; of course, the cabinet air conditioner in the present embodiment is not limited to the three operating modes mentioned above, and the working principle of the air conditioner in the present embodiment is illustrated by taking the three operating modes mentioned above as examples: in detail,

[0187] As shown in Figure 5As shown, when the air conditioner runs in the upper air outlet cooling mode, the upper baffle structure one 81 is controlled to rotate to close the upper return air port 2111, at this time the upper fan air duct 22 is communicated with the first upper air outlet duct 211, the upper baffle structure two 82 is controlled to rotate to make the intermediate air duct 23 and the second upper air outlet duct 212 communicated, the upper lobe movement mechanism 41 is controlled to move to the first position to make the upper fan 4 blow air upward, the lower baffle structure one 83 is controlled to rotate to open the lower return air port 2511, at this time the lower fan air duct 24 is not communicated with the first lower air outlet duct 251, the lower baffle structure two 84 is controlled to rotate to block the communication between the second lower air outlet duct 252 and the intermediate air duct 23, the lower lobe movement mechanism 51 is controlled to move to the third position to make the lower fan 5 blow air upward; at this time, indoor air from the third air vent 13 of the lower part of the air conditioner enters into the machine body channel 3 through the lower return air port 82, another part of air enters into the machine body channel 3 through the second air vent 12 of the upper part of the air conditioner and the fourth air vent 14 of the lower part of the air conditioner, the air entering into the machine body channel 3 flows to the opposite sides of the machine body, a part of air enters into the cavity of the upper fan 4 from the axial direction of the upper fan 4 through the heat exchanger assembly under the action of the upper fan 4, and finally is blown out from the first air vent 11 of the upper part of the air conditioner through the first upper air outlet duct 211 under the action of the upper fan 4, another part of air enters into the cavity of the lower fan 5 from the axial direction of the lower fan 5 through the heat exchanger assembly under the action of the lower fan 5, and finally is blown out from the first air vent 11 of the upper part of the air conditioner through the intermediate air duct 23 and the second upper air outlet duct 212 under the action of the lower fan 5.

[0188] As Figure 6As shown, when the air conditioner runs in the single lower air outlet heating mode, the upper baffle structure 81 is controlled to rotate to open the upper return air port 2111, at this time the upper fan air duct 22 and the first upper air outlet duct 211 are not communicated, the upper baffle structure 82 is controlled to rotate to block the communication between the intermediate air duct 23 and the second upper air outlet duct 212, the upper lobe movement mechanism 41 is controlled to move to the second position to make the upper fan 4 blow air downward, the lower baffle structure 83 is controlled to rotate to close the lower return air port 2511, at this time the lower fan air duct 24 and the first lower air outlet duct 251 are communicated, the lower baffle structure 84 is controlled to rotate to make the second lower air outlet duct 252 and the intermediate air duct 23 communicated, the lower lobe movement mechanism 51 is controlled to move to the fourth position to make the lower fan 4 blow air downward; at this time, indoor air from the first air vent 11 of the upper part of the air conditioner enters into the machine body channel 3 through the upper return air port 81, another part of the air enters into the machine body channel 3 through the second air vent 12 of the upper part of the air conditioner and the fourth air vent 14 of the lower part of the air conditioner, the air entering into the machine body channel 3 flows to the opposite sides of the machine body, a part of the air enters into the cavity of the lower fan 5 from the axial direction of the lower fan 5 under the action of the lower fan 5, and finally is blown out from the third air vent 13 of the lower part of the air conditioner through the first lower air outlet duct 251 under the action of the lower fan 5, another part of the air enters into the cavity of the upper fan 4 from the axial direction of the upper fan 4 under the action of the upper fan 4, and finally is blown out from the third air vent 13 of the lower part of the air conditioner through the intermediate air duct 23 and the second lower air outlet duct 252 under the action of the upper fan.

[0189] As Figure 4As shown, when the air conditioner runs the cooling / heating up and down air outlet mode, the upper baffle structure one 81 is controlled to rotate to close the upper return air outlet 2111, at this time the upper fan air duct 22 and the first upper air outlet 211 are communicated, the upper baffle structure two 82 is controlled to rotate to block the communication between the intermediate air duct 23 and the second upper air outlet 212, the upper volute movement mechanism 41 is controlled to move to the first position to make the upper fan 4 blow air upward, the lower baffle structure one 83 is controlled to rotate to close the lower return air outlet 2511, at this time the lower fan air duct 24 and the first lower air outlet 251 are communicated, the lower baffle structure two 84 is controlled to rotate to block the communication between the intermediate air duct 23 and the second lower air outlet 252, the lower volute movement mechanism 51 is controlled to move to the fourth position to make the lower fan 5 blow air downward. At this time, indoor air enters the machine body channel 3 from the second air inlet 12 of the upper part of the air conditioner and the fourth air inlet 14 of the lower part of the air conditioner, the air entering the machine body channel 3 flows to the opposite sides of the machine body, part of the air enters the cavity of the lower fan 5 from the axial direction of the lower fan 5 under the action of the lower fan 5, passes through the heat exchanger assembly, and is finally blown out from the third air outlet 13 of the lower part of the air conditioner under the action of the first lower air outlet 251 of the lower fan 5, another part of the air enters the cavity of the upper fan 4 from the axial direction of the upper fan 4 under the action of the upper fan 4, passes through the heat exchanger assembly, and is finally blown out from the first air outlet 211 of the upper fan 4 under the action of the upper fan 4.

[0190] It can be seen that the air conditioner in the embodiment of the present application changes the air inlet and outlet positions with different air outlet modes, the third air inlet 13 of the lower part of the air conditioner is switched to an air inlet in the cooling mode, realizing lower inlet and upper outlet, the first air inlet 11 of the upper part of the air conditioner is switched to an air inlet in the heating mode, realizing upper inlet and lower outlet, and the air inlet and outlet are switched with different modes.

[0191] It should be noted that, as shown, Figures 4-6 When the air conditioner in the embodiment runs the single upper air outlet cooling mode, the upper volute movement mechanism 41 and the upper baffle structure one 81 constitute part of the volute profile of the upper fan 4, the lower volute movement mechanism 51, the lower partition 7 and the lower baffle structure two 84 constitute part of the volute profile of the lower fan 5;

[0192] When the air conditioner runs the single lower air outlet heating mode, the upper volute movement mechanism 41, the upper partition 6 and the upper baffle structure two 82 constitute part of the volute profile of the upper fan 4, and the lower volute movement mechanism 51 and the lower baffle structure one 81 constitute part of the volute profile of the lower fan 5;

[0193] When the air conditioner runs the cooling / heating up and down air outlet mode, the upper volute movement mechanism 41 and the upper baffle structure one 81 constitute part of the volute profile of the upper fan 4, and the lower volute movement mechanism 51 and the lower baffle structure one 83 constitute part of the volute profile of the lower fan 5.

[0194] That is, the air conditioner in this embodiment can also reduce noise generated by the air conditioner when the air conditioner is operating.

[0195] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0196] It is to be understood that the application is not limited to the precise structures hereinabove described and shown in the drawings, for the same can be varied in both structure and detail. The scope of the application is indicated by the appended claims.

Claims

1. A cabinet type air conditioner, characterized by comprising: The air conditioner comprises: a machine body (1), an upper portion of the machine body (1) is provided with a first air vent (11) and a second air vent (12), a lower portion of the machine body (1) is provided with a third air vent (13) and a fourth air vent (14); an air duct component (2), the air duct component is arranged inside the machine body (1), an outer portion of the air duct component (2) and the machine body (1) define a machine body shell passage (3), the machine body shell passage (3) is communicated with the second air vent (12) at an upper portion and communicated with the fourth air vent (14) at a lower portion, the air duct component (2) is internally formed with an upper air outlet duct (21), an upper air fan duct (22), a middle air duct (23), a lower air fan duct (24) and a lower air outlet duct (25) arranged in sequence from top to bottom, an upper portion of the upper air outlet duct (21) is communicated with the first air vent (11), a lower portion of the lower air outlet duct (25) is communicated with the third air vent (13); an air fan, the air fan comprises an upper air fan (4) arranged in the upper air fan duct (22) and a lower air fan (5) arranged in the lower air fan duct (24), the upper air fan (4) has an upper air inlet communicated with the machine body shell passage (3) at both axial ends, the lower air fan (5) has a lower air inlet communicated with the machine body shell passage (3) at both axial ends; a partition, the partition comprises an upper partition (6) arranged in the upper air outlet duct (21) and a lower partition (7) arranged in the lower air outlet duct (25), the upper partition (6) separates the upper air outlet duct (21) into a first upper air outlet duct (211) and a second upper air outlet duct (212), the lower partition (7) separates the lower air outlet duct (25) into a first lower air outlet duct (251) and a second lower air outlet duct (252). The wind blocking structure comprises an upper wind blocking structure and a lower wind blocking structure, the upper wind blocking structure comprises an upper wind blocking structure one (81) rotatably arranged on a wind channel wall of a first upper air outlet channel (211) and an upper wind blocking structure two (82) rotatably arranged on a wind channel wall of a second upper air outlet channel (212), the wind channel wall of the first upper air outlet channel (211) is provided with a machine body shell passage (3) and an upper return air outlet (2111) of the first upper air outlet channel (211), the rotatably arranged upper wind blocking structure one (81) can open or close the upper return air outlet (2111), wherein the rotatably arranged upper wind blocking structure one (81) is designed to block the communication between the upper air blower channel (22) and the first upper air outlet channel (211) while opening the upper return air outlet (2111) or make the upper air blower channel (22) and the first upper air outlet channel (211) communicate while closing the upper return air outlet (2111), the rotatably arranged upper wind blocking structure two (82) can make the second upper air outlet channel (212) and the intermediate air channel (23) communicate or block the communication between the second upper air outlet channel (212) and the intermediate air channel (23), the lower wind blocking structure comprises a lower wind blocking structure one (83) rotatably arranged on a wind channel wall of a first lower air outlet channel (251) and a lower wind blocking structure two (84) rotatably arranged on a wind channel wall of a second lower air outlet channel (252), the wind channel wall of the first lower air outlet channel (251) is provided with a machine body shell passage (3) and a lower return air outlet (2511) of the first lower air outlet channel (251), the rotatably arranged lower wind blocking structure one (83) can open or close the lower return air outlet (2511), wherein the rotatably arranged lower wind blocking structure one (83) is designed to block the communication between the lower air blower channel (24) and the first lower air outlet channel (251) while opening the lower return air outlet (2511) or make the lower air blower channel (24) and the first lower air outlet channel (251) communicate while closing the lower return air outlet (2511), the rotatably arranged lower wind blocking structure two (84) can make the second lower air outlet channel (252) and the intermediate air channel (23) communicate or block the communication between the second lower air outlet channel (252) and the intermediate air channel (23). The air conditioner comprises an upper fan (4), a lower fan (5), an upper air outlet (21), a lower air outlet (25), an upper air outlet channel (21), a lower air outlet channel (25), an upper air return channel (22), a lower air return channel (24), an intermediate air channel (23), an upper air blocking structure (81), an upper air blocking structure (82), a lower air blocking structure (83), a lower air blocking structure (84), an upper volute tongue movement mechanism (41) and a lower volute tongue movement mechanism (51).

2. The cabinet-type air conditioner according to claim 1, wherein The air conditioner comprises a single upper air outlet cooling mode, a single lower air outlet heating mode and a cooling / heating upper and lower air outlet mode; When the air conditioner operates in the single upper air outlet cooling mode, the upper air blocking structure (81) is controlled to rotate to close the upper air return port (2111), at this time the upper fan air channel (22) is in communication with the first upper air outlet channel (211), the upper air blocking structure (82) is controlled to rotate to make the intermediate air channel (23) and the second upper air outlet channel (212) in communication, the upper volute tongue movement mechanism (41) is controlled to move to the first position to make the upper fan (4) blow air upward, the lower air blocking structure (83) is controlled to rotate to open the lower air return port (2511), at this time the lower fan air channel (24) is not in communication with the first lower air outlet channel (251), the lower air blocking structure (84) is controlled to rotate to block the communication between the second lower air outlet channel (252) and the intermediate air channel (23), and the lower volute tongue movement mechanism (51) is controlled to move to the third position to make the lower fan (5) blow air upward; When the air conditioner operates in the single lower air outlet heating mode, the upper air blocking structure (81) is controlled to rotate to open the upper air return port (2111), at this time the upper fan air channel (22) is not in communication with the first upper air outlet channel (211), the upper air blocking structure (82) is controlled to rotate to block the communication between the intermediate air channel (23) and the second upper air outlet channel (212), the upper volute tongue movement mechanism (41) is controlled to move to the second position to make the upper fan (4) blow air downward, the lower air blocking structure (83) is controlled to rotate to close the lower air return port (2511), at this time the lower fan air channel (24) is in communication with the first lower air outlet channel (251), the lower air blocking structure (84) is controlled to rotate to make the second lower air outlet channel (252) and the intermediate air channel (23) in communication, and the lower volute tongue movement mechanism (51) is controlled to move to the fourth position to make the lower fan (5) blow air downward. When the air conditioner operates in the cooling / heating up-and-down air outlet mode, the upper damper structure one (81) is controlled to rotate to close the upper return air outlet (2111), at this time the upper fan air duct (22) and the first upper air outlet duct (211) are communicated, the upper damper structure two (82) is controlled to rotate to block the communication between the intermediate air duct (23) and the second upper air outlet duct (212), the upper volute tongue movement mechanism (41) is controlled to move to the first position to make the upper fan (4) blow air upward, the lower damper structure one (83) is controlled to rotate to close the lower return air outlet (2511), at this time the lower fan air duct (24) and the first lower air outlet duct (251) are communicated, the lower damper structure two (84) is controlled to rotate to block the communication between the intermediate air duct (23) and the second lower air outlet duct (252), and the lower volute tongue movement mechanism (51) is controlled to move to the fourth position to make the lower fan (5) blow air downward.

3. The cabinet air conditioner according to claim 2, characterized in that, When the air conditioner operates in the single upper air outlet cooling mode, the upper volute tongue movement mechanism (41) and the upper damper structure one (81) form part of the volute profile of the upper fan (4), and the lower volute tongue movement mechanism (51), the lower partition (7) and the lower damper structure two (84) form part of the volute profile of the lower fan (5); When the air conditioner operates in the single lower air outlet heating mode, the upper volute tongue movement mechanism (41), the upper partition (6) and the upper damper structure two (82) form part of the volute profile of the upper fan (4), and the lower volute tongue movement mechanism (51) and the lower damper structure one (83) form part of the volute profile of the lower fan (5); When the air conditioner operates in the cooling / heating up-and-down air outlet mode, the upper volute tongue movement mechanism (41) and the upper damper structure one (81) form part of the volute profile of the upper fan (4), and the lower volute tongue movement mechanism (51) and the lower damper structure one (83) form part of the volute profile of the lower fan (5).

4. The cabinet-type air conditioner according to claim 3, wherein The upper partition (6) comprises an upper triangular block arranged in the upper air outlet duct (21), and the lower partition (7) comprises a lower triangular block arranged in the lower air outlet duct (25); The upper triangular block comprises a first upper side (61), a second upper side (62) and a third upper side (63) connected in sequence, the first upper side (61) forms an air duct wall of at least part of the first upper air outlet duct (211), the second upper side (62) forms an air duct wall of at least part of the second upper air outlet duct (212), and the third upper side (63) is arranged close to the upper fan (4); The lower triangular block comprises a first lower side (71), a second lower side (72) and a third lower side (73) connected in sequence, the first lower side (71) forms an air duct wall of at least part of the first lower air outlet duct (251), the second lower side (72) forms an air duct wall of at least part of the second lower air outlet duct (252), and the third lower side (73) is arranged close to the lower fan (5); wherein; When the air conditioner operates in the single lower air-out cooling mode, the lower volute tongue moving mechanism (51), the third lower side (73) and the lower air baffle structure two (84) form part of the volute profile of the lower fan (5); When the air conditioner operates in the single upper air-out heating mode, the upper volute tongue moving mechanism (41), the third upper side (63) and the upper air baffle structure two (82) form part of the volute profile of the upper fan (4).

5. The cabinet air conditioner according to claim 4, wherein The third upper side (63) arranged close to the upper fan (4) is configured as an arc shape; The third lower side (73) arranged close to the lower fan (5) is configured as an arc shape; The upper air baffle structure one (81), the upper air baffle structure two (82), the lower air baffle structure one (83) and the lower air baffle structure two (84) are all configured as arc shapes.

6. The cabinet-type air conditioner according to any one of claims 2-5, wherein The air conditioner further comprises: A heat exchanger assembly (9) arranged in the body shell passage (3) for heat exchanging the air flow passing through the body shell passage (3); When the air conditioner operates in the single lower air-out cooling mode, the air flow entering from the third air vent (13) enters the lower air-out duct (25) and enters the body shell passage (3) through the opened lower return air vent (2511), the air flow entering from the second air vent (12) and the fourth air vent (14) directly enters the body shell passage (3), after the air flow entering the body shell passage (3) is heat exchanged with the heat exchanger assembly (9), part of the air flow passes through the upper fan (4) and the upper air-out duct (21) and is discharged from the first air vent (11), and the other part of the air flow passes through the lower fan (5), the intermediate air duct (23) and the upper air-out duct (21) and is discharged from the first air vent (11); When the air conditioner operates in the single lower air-out heating mode, the air flow entering from the first air vent (11) enters the upper air-out duct (21) and enters the body shell passage (3) through the opened upper return air vent (2111), the air flow entering from the second air vent (12) and the fourth air vent (14) directly enters the body shell passage (3), after the air flow entering the body shell passage (3) is heat exchanged with the heat exchanger assembly (9), part of the air flow passes through the upper fan (4), the intermediate air duct (23) and the lower air-out duct (25) and is discharged from the third air vent (13), and the other part of the air flow passes through the lower fan (5) and the lower air-out duct (25) and is discharged from the third air vent (13); When the air conditioner operates in the cooling / heating upper and lower air-out mode, the air flow entering from the second air vent (12) and the fourth air vent (14) enters the body shell passage (3), after the air flow entering the body shell passage (3) is heat exchanged with the heat exchanger assembly (9), part of the air flow passes through the upper fan (4) and the upper air-out duct (21) and is discharged from the first air vent (11), and the other part of the air flow passes through the lower fan (5) and the lower air-out duct (25) and is discharged from the third air vent (13).

7. The cabinet-type air conditioner according to claim 6, wherein The heat exchanger assembly (9) comprises opposite first and second heat exchange sections (91, 92), the upper part of the first heat exchange section (91) and the upper part of the second heat exchange section (92) are connected by a first connecting section (93), the lower part of the first heat exchange section (91) and the lower part of the second heat exchange section (92) are connected by a second connecting section (94), the first heat exchange section (91), the second heat exchange section (92), the first connecting section (93) and the second connecting section (94) surround the heat exchanger assembly (9) with an open cavity in the middle part; The air duct component (2) is arranged in the open cavity in the middle part of the heat exchanger assembly (9), wherein the axial ends of the upper fan (4) in the air duct component (2) correspond to the first heat exchange section (91) and the second heat exchange section (92) respectively, and the axial ends of the lower fan (5) in the air duct component (2) correspond to the first heat exchange section (91) and the second heat exchange section (92) respectively.

8. The cabinet air conditioner according to claim 7, characterized in that, The first heat exchange section (91) comprises a first heat exchange section upper part (911) corresponding to one axial end of the upper fan (4), and a first heat exchange section lower part (912) corresponding to one axial end of the lower fan (5); The second heat exchange section (92) comprises a second heat exchange section upper part (921) corresponding to the other axial end of the upper fan (4), and a second heat exchange section lower part (922) corresponding to the other axial end of the lower fan (5); The first heat exchange section upper part (911) and the first heat exchange section lower part (912) form a V-shaped heat exchange element with the notch facing one side of the air duct component (2), and the second heat exchange section upper part (921) and the second heat exchange section lower part (922) form a V-shaped heat exchange element with the notch facing the other side of the air duct component (2).

9. The cabinet-type air conditioner according to any one of claims 1-5, wherein The air conditioner further comprises an upper passage (100) and a lower passage (200); The lower end of the upper passage (100) is communicated with the upper air outlet (21), and the upper end is communicated with the first air vent (11); The upper end of the lower passage (200) is communicated with the lower air outlet (25), and the lower end is communicated with the third air vent (13).

10. The cabinet-type air conditioner according to claim 1, wherein The cabinet (1) further comprises: An air inlet component (1a), the front part and the upper part of the air inlet component (1a) are open, and an accommodation space is formed inside; A panel component (1b) is arranged at the open position of the front part of the air inlet component (1a); A top cover component (1c) is arranged at the open position of the upper part of the air inlet component (1a); A base component (1d) is arranged at the lower part of the air inlet component (1a); The air inlet component (1a), the top cover component (1c) and the panel component (1b) define the air frame of the first air vent (11) and the second air vent (12) with upward opening, and the air inlet component (1a), the base component (1d) and the panel component (1b) define the third air vent (13) with forward opening and the fourth air vent (14) with downward opening.

11. A wind tunnel component characterised in that: The air duct component (2) comprises an upper air duct component (2a) comprising: an upper air duct shell comprising a first upper air duct shell (2a1), a second upper air duct shell (2a2), and a first upper side plate and a second upper side plate connected between the first upper air duct shell (2a1) and the second upper air duct shell (2a2), which collectively enclose an upper air duct cavity; the upper air duct cavity comprises an upper fan air duct (22) for accommodating an upper fan (4), a first upper air duct and a second upper air duct located on both sides of a preset rotation axis of the upper fan air duct (22) and communicating with the upper fan air duct (22), an end of the first upper air duct away from the upper fan air duct (22) forms a first upper outlet (2c), and an end of the second upper air duct away from the upper fan air duct (22) forms a second upper outlet (2d); the upper air duct component (2a) is provided with an upper partition (6) at a side of the first upper air duct communicating with the upper fan air duct (22), the upper partition (6) divides the first upper air duct into a first upper out-air duct (211) and a second upper out-air duct (212) at the side communicating with the upper fan air duct (22), a communication port of the first upper out-air duct (211) with the upper fan air duct (22) is a first upper ventilation port, a communication port of the second upper out-air duct (212) with the upper fan air duct (22) is a second upper ventilation port, and one side of the first upper out-air duct (211) and the second upper out-air duct (212) away from the upper fan air duct (22) communicates with the first upper outlet (2c); the first upper air duct shell (2a1) is provided with a first upper return air port (2111) communicating with the first upper out-air duct (211); the upper partition (6) comprises a first upper side edge (61), a second upper side edge (62), and a third upper side edge (63), wherein the first upper side edge (61) and an inner wall of the first upper air duct shell (2a1) form the first upper out-air duct (211), the second upper side edge (62) and an inner wall of the second upper air duct shell (2a2) form the second upper out-air duct (212), and the third upper side edge (63) faces an inner side of the upper fan air duct (22); The upper air duct component (2a) is provided with an upper volute tongue movement mechanism (41) at the upper fan air duct (22), the upper volute tongue movement mechanism (41) can slide in the upper fan air duct (22) around the preset rotation axis of the upper fan air duct (22), the upper volute tongue movement mechanism (41) has a first upper working position and a second upper working position on the sliding track, when the upper volute tongue movement mechanism (41) slides to the first upper working position, the upper fan air duct (22) is closed with the first upper air outlet (211), the upper fan air duct (22) is communicated with the second upper air outlet (212) and the second upper air duct, when the upper volute tongue movement mechanism (41) slides to the second upper working position, the upper fan air duct (22) is communicated with the first upper air outlet (211) and is closed with the second upper air outlet (212) and the second upper air duct; The upper air duct component (2a) is further provided with an upper air blocking structure one (81) and an upper air blocking structure two (82), wherein the upper air blocking structure one (81) can be controlled to selectively open one of the upper return air outlet (2111) and the first upper ventilation opening and close the other one, the upper air blocking structure two (82) can be controlled to selectively open or close the second upper ventilation opening.

12. The air duct component of claim 11, wherein, The air duct component further comprises a lower air duct component (2b), the lower air duct component (2b) comprises: A lower air duct shell, the lower air duct shell comprises a first lower air duct shell (2b1), a second lower air duct shell (2b2), and a first lower side plate and a second lower side plate connected between the first lower air duct shell (2b1) and the second lower air duct shell (2b2), the first lower air duct shell (2b1), the second lower air duct shell (2b2), the first lower side plate and the second lower side plate together enclose a lower air duct cavity; The lower air duct cavity comprises a lower fan air duct (24) for accommodating a lower fan (5), a first lower air duct and a second lower air duct located on the two sides of the preset rotation axis of the lower fan air duct (24) and communicated with the lower fan air duct (24), the first lower air duct forms a first lower outlet (2e) at one end away from the lower fan air duct (24), and the second lower air duct forms a second lower outlet (2f) at one end away from the lower fan air duct (24); The lower air duct component (2b) is provided with a lower partition (7) at the communication between the first lower air duct and one side of the lower fan air duct (24), the lower partition (7) divides the first lower air duct into a first lower air outlet (251) and a second lower air outlet (252) at the communication with the lower fan air duct (24), the communication port of the first lower air outlet (251) with the lower fan air duct (24) is a first lower ventilation opening, the communication port of the second lower air outlet (252) with the lower fan air duct (24) is a second lower ventilation opening, and one side of the first lower air outlet (251) and the second lower air outlet (252) away from the lower fan air duct (24) is communicated with the first lower outlet (2e); The first lower air duct shell (2b1) is provided with a lower return air opening (2511) communicating with the first lower air outlet (251); The lower partition (7) comprises a first lower side (71), a second lower side (72) and a third lower side (73), wherein the first lower side (71) and the inner wall of the first lower air duct shell (2b1) form the first lower air outlet (251), the second lower side (72) and the inner wall of the second lower air duct shell (2b2) form the second lower air outlet (252), and the third lower side (73) faces the inner side of the lower fan air duct (24); The lower air duct component (2b) is provided with a lower volute tongue movement mechanism (51) in the lower fan air duct (24), the lower volute tongue movement mechanism (51) can slide in the circumferential direction of the lower fan air duct (24) about a preset rotation axis of the lower fan air duct (24), the lower volute tongue movement mechanism (51) has a first lower working position and a second lower working position in the circumferential sliding track thereof, when the lower volute tongue movement mechanism (51) slides to the first lower working position, the lower fan air duct (24) is closed with the first lower air outlet (251) and is communicated with the second lower air outlet (252) and the second lower air duct, when the lower volute tongue movement mechanism (51) slides to the second lower working position, the lower fan air duct (24) is communicated with the first lower air outlet (251) and is closed with the second lower air outlet (252) and the second lower air duct; The lower air duct component (2b) is further provided with a lower wind blocking structure one (83) and a lower wind blocking structure two (84), wherein the lower wind blocking structure one (83) can be controlled to selectively open one of the lower return air opening (2511) and the first lower air vent and close the other one, and the lower wind blocking structure two (84) can be controlled to selectively open or close the second lower air vent; The upper air duct component (2a) is communicated with the second lower air duct of the lower air duct component (2b) through the second upper outlet (2d) of the second upper air duct, and the communication between the second upper air duct of the upper air duct component (2a) and the second lower air duct of the lower air duct component (2b) forms an intermediate air duct (23).

13. The air duct component of claim 12, wherein, The upper air duct component (2a) and the lower air duct component (2b) are symmetrically arranged with the connecting surface of the second upper outlet (2d) and the second lower outlet (2f) as the symmetry surface.

14. An air supply assembly comprising: The air supply assembly comprises an upper fan, a lower fan and the air duct component of claim 12 or 13. The upper fan (4) is accommodated in the upper fan air duct (22) of the air duct component, and the lower fan (5) is accommodated in the lower fan air duct (24) of the air duct component.

15. A cabinet-type air conditioner, characterized by comprising: The air supply assembly of claim 14.

16. The cabinet-type air conditioner according to claim 15, wherein The air conditioner comprises a machine body (1), the air supply assembly is arranged in the machine body (1), and a machine body shell passage (3) is defined between the outside of the air supply assembly and the machine body (1) to communicate the axial air inlet of the upper fan (4) and the axial air inlet of the lower fan (5). The upper part of the machine body (1) is provided with a first air vent (11) and a second air vent (12), and the lower part of the machine body (1) is provided with a third air vent (13) and a fourth air vent (14); The first air vent (11) and the third air vent (13) are communicated with the upper and lower ends of the machine body shell passage (3), the second air vent (12) is communicated with the first upper outlet (2c), and the fourth air vent (14) is communicated with the first lower outlet (2e).

17. The cabinet-type air conditioner according to claim 16, wherein The air conditioner further comprises: A heat exchanger assembly (9) is arranged in the machine body shell passage (3) and used for heat exchange of air flow passing through the machine body shell passage (3).

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