Cabinet air conditioner

Abstract

The invention provides a cabinet air conditioner, and belongs to the field of air conditioners. Comprising a shell with an upper air opening formed in the upper portion and a lower air opening formed in the lower portion. The air duct component is arranged in the shell, the upper end of the air duct component is communicated with the upper air port, the lower end of the air duct component is communicated with the lower air port, a machine body shell channel is formed between the outside of the air duct component and the shell, and a fan air duct is formed inside; the fan assembly is arranged in the fan air duct of the air duct component, and an air inlet communicated with the machine body shell channel is axially formed in the fan assembly; the heat exchanger assembly is arranged in the machine body shell channel, the heat exchanger assembly is provided with a first heat exchange surface and a second heat exchange surface which are opposite, the first heat exchange surface faces the shell, and the second heat exchange surface faces the air duct component; a first heat exchange cavity is formed between the first heat exchange surface and the shell, and a second heat exchange cavity is formed between the second heat exchange surface and the air duct component; the first heat exchange cavity and the second heat exchange cavity are communicated through the heat exchanger assembly, and the gradual change rules of the first heat exchange cavity and the second heat exchange cavity are opposite.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and particularly relates to a floor-standing air conditioner. Background Art

[0002] When an existing reversible air conditioner realizes reversible air supply, the heat exchanger is generally placed obliquely inside the air conditioner, and the fans are respectively located at the upper and lower ends of the heat exchanger. When refrigerating, the lower side of the heat exchanger intakes air and the upper side discharges air. When heating, the upper side of the heat exchanger intakes air and the lower side discharges air. The air intake surfaces of the heat exchanger are different under different working conditions, resulting in the working efficiency of the heat exchanger not being able to reach the best at the same time. Secondly, due to the switching of the air intake surface of the heat exchanger, dust, fluff, etc. brought in by the indoor air will be distributed on the upper and lower sides of the heat exchanger, and it is necessary to add filtering structures on both sides of the heat exchanger to filter dust, fluff, etc., which has a great impact on the air volume. Summary of the Invention

[0003] In view of this, the present invention provides a floor-standing air conditioner to solve the problem that in the prior art, the working efficiency of the heat exchanger cannot reach the best at the same time because the air intake surfaces of the heat exchanger are different under different working conditions of the air conditioner.

[0004] An embodiment of the present invention provides a floor-standing air conditioner, including:

[0005] A housing, with an upper air outlet formed at its upper part and a lower air outlet formed at its lower part;

[0006] An air duct component, which is arranged inside the housing along the height direction of the housing. The upper end of the air duct component communicates with the upper air outlet, the lower end of the air duct component communicates with the lower air outlet, and a fuselage housing channel is formed between the outside of the air duct component and the housing, and a fan duct is formed inside;

[0007] A fan assembly, which is arranged in the fan duct of the air duct component, and has an air inlet axially communicating with the fuselage housing channel;

[0008] A heat exchanger assembly, which is arranged in the fuselage housing channel. The heat exchanger assembly has opposite first and second heat exchange surfaces, the first heat exchange surface faces the housing, and the second heat exchange surface faces the air duct component;

[0009] Wherein a first heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the first heat exchange surface facing the housing and the housing, and a second heat exchange cavity with a gradually changing cross-sectional area in the height direction of the housing is formed between the second heat exchange surface facing the air duct component and the air duct component;

[0010] Wherein the first heat exchange cavity and the second heat exchange cavity are connected through the heat exchanger assembly, and the gradual change rules of the first heat exchange cavity and the second heat exchange cavity are opposite.

[0011] In the above technical solution, the heat exchanger assembly includes a V-shaped heat exchanger with an opening facing the air duct component. The V-shaped heat exchanger includes a V-shaped first heat exchange surface disposed on one side facing the housing and a V-shaped second heat exchange surface disposed on one side facing the air duct component;

[0012] The V-shaped first heat exchange surface includes a first upper heat exchange surface that extends obliquely upward from the middle of the heat exchanger assembly and a first lower heat exchange surface that extends obliquely downward from the middle of the heat exchange assembly. A first upper heat exchange cavity that tapers from top to bottom is defined between the first upper heat exchange surface and the housing, and a first lower heat exchange cavity that tapers from bottom to top is defined between the first lower heat exchange surface and the housing. The first upper heat exchange cavity and the first lower heat exchange cavity communicate at the middle position of the heat exchanger assembly to form a first heat exchange cavity;

[0013] The V-shaped second heat exchange surface includes a second upper heat exchange surface that extends obliquely upward from the middle of the heat exchanger assembly and a second lower heat exchange surface that extends obliquely downward from the middle of the heat exchanger assembly. A second upper heat exchange cavity that expands from top to bottom is defined between the second upper heat exchange surface and the air duct component, and a second lower heat exchange cavity that expands from bottom to top is defined between the second lower heat exchange surface and the air duct component. The second upper heat exchange cavity and the second lower heat exchange cavity communicate at the middle position of the heat exchanger assembly to form a second heat exchange cavity;

[0014] Wherein the first upper heat exchange cavity is opposite to the second upper heat exchange cavity, and the first lower heat exchange cavity is opposite to the second lower heat exchange cavity.

[0015] In the above technical solution, there are two sets of heat exchanger assemblies, and the two sets of heat exchanger assemblies are symmetrically distributed on both sides of the air duct component;

[0016] Air inlet ports are formed at both ends of the fan assembly on the air duct component in its axial direction.

[0017] In the above technical solution, a cavity for accommodating the air duct component is formed between the two sets of heat exchanger assemblies;

[0018] The air duct component is accommodated in the cavity and fixedly connected to the heat exchanger assembly.

[0019] In the above technical solution, the fan air duct includes an upper fan air duct and a lower fan air duct that are independent of each other and distributed up and down, and the fan assembly includes an upper fan assembly and a lower fan assembly;

[0020] The upper fan assembly is disposed in the upper fan air duct, and the lower fan assembly is disposed in the lower fan air duct.

[0021] In the above technical solution, the upper half of the heat exchanger assembly corresponds to the air inlet port at one axial end of the upper fan assembly;

[0022] The lower half of the heat exchanger assembly corresponds to the air inlet port at the other axial end of the lower fan assembly.

[0023] In the above technical solution, the air duct component further includes an upper air outlet duct and a lower air outlet duct;

[0024] The upper end of the upper air outlet duct communicates with the upper air inlet, and the lower end communicates with the upper fan air duct;

[0025] The upper end of the lower air outlet duct communicates with the lower fan air duct, and the lower end communicates with the lower air inlet;

[0026] On the air duct wall of the upper fan air duct, there is an upper air return opening communicating with the upper air outlet duct and the fuselage housing passage. An upper air blocking mechanism is rotatably arranged at the position of the upper air return opening. The upper air blocking mechanism can cut off the connection between the upper air outlet duct and the upper fan air duct while opening the upper air return opening, and connect the upper air outlet duct and the upper fan air duct while closing the upper air return opening;

[0027] On the air duct wall of the lower fan air duct, there is a lower air return opening communicating with the lower air outlet duct and the fuselage housing passage. A lower air blocking mechanism is rotatably arranged at the position of the lower air return opening. The lower air blocking mechanism can cut off the connection between the lower air outlet duct and the lower fan air duct while opening the lower air return opening, and connect the lower air outlet duct and the lower fan air duct while closing the lower air return opening.

[0028] In the above technical solution, the upper air blocking mechanism includes an upper air blocking member rotatably arranged at the upper air return opening, and the lower air blocking mechanism includes a lower air blocking member rotatably arranged at the lower air return opening.

[0029] In the above technical solution, an upper auxiliary air inlet is further provided at the upper part of the housing, and a lower auxiliary air inlet is further provided at the lower part of the housing;

[0030] Wherein the upper part of the fuselage housing passage communicates with the upper auxiliary air inlet, and the lower part communicates with the lower auxiliary air inlet.

[0031] In the above technical solution, the housing includes:

[0032] An air inlet component, the front and top of the air inlet component are open, and an accommodation space is formed inside;

[0033] A panel component, which is installed at the open position in the front of the air inlet component;

[0034] A top cover component, which is installed at the open position on the top of the air inlet component;

[0035] A base component, which is installed at the bottom of the air inlet component;

[0036] Wherein an upper air inlet and an upper auxiliary air inlet with an upward opening direction are defined between the air inlet component, the top cover component and the panel component, and a lower air inlet and a lower auxiliary air inlet with a forward opening direction and a rearward opening direction are defined between the air inlet component, the base component and the panel component.

[0037] Compared with the prior art, the beneficial effects of the present invention mainly lie in:

[0038] In the embodiment of the present invention, by arranging the heat exchanger directly in front of the air inlet of the air blade cavity, it is ensured that the incoming air is evenly distributed on the surface of the heat exchanger, and the incoming air surface of the heat exchanger remains unchanged during reversible air supply, thereby improving the heat exchange efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0040] The structures, proportions, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0041] Figure 1 It is an axonometric structure schematic diagram of an embodiment of a cabinet air conditioner of the present invention;

[0042] Figure 2 It is an exploded structure schematic diagram of an embodiment of a cabinet air conditioner of the present invention;

[0043] Figure 3 It is a structure schematic diagram when the heat exchanger in an embodiment of a cabinet air conditioner of the present invention cooperates with the housing and the air duct components;

[0044] Figure 4 It is a sectional structure schematic diagram of an embodiment of a cabinet air conditioner of the present invention, and the air conditioner in the figure operates in the single-upwind cooling mode;

[0045] Figure 5 It is a sectional structure schematic diagram of an embodiment of a cabinet air conditioner of the present invention, and the air conditioner in the figure operates in the single-downwind heating mode.

[0046] In the figure:

[0047] 1 - housing; 1a - air inlet component; 1b - panel component; 1c - top cover component; 1d - base component; 11 - upper air outlet; 12 - upper auxiliary air inlet; 13 - lower air outlet; 14 - lower auxiliary air inlet;

[0048] 4 - Air duct component; 41 - Upper fan air duct; 411 - Upper air return opening; 412 - Upper air damper mechanism; 42 - Lower fan air duct; 421 - Lower air return opening; 422 - Lower air damper mechanism;

[0049] 5 - Body housing passage;

[0050] 6 - Upper air outlet duct;

[0051] 7 - Lower air outlet duct;

[0052] 8 - Upper fan assembly;

[0053] 9 - Lower fan assembly;

[0054] 100 - Heat exchanger assembly; 1001 - First heat exchange surface; 10011 - First upper heat exchange surface; 10012 - First lower heat exchange surface; 1002 - Second heat exchange surface; 10021 - Second upper heat exchange surface; 10022 - Second lower heat exchange surface; 1003 - First heat exchange cavity; 10031 - First upper heat exchange cavity; 10032 - First lower heat exchange cavity; 1004 - Second heat exchange cavity; 10041 - Second upper heat exchange cavity; 10042 - Second lower heat exchange cavity. Detailed implementation manners

[0055] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0056] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0057] It should be understood that the term " / and" used herein is only a description of the associated relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0058] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a commodity or system comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or system comprising said element.

[0059] Embodiment

[0060] As Figures 1 - 5 shown, an embodiment of the present invention provides a cabinet air conditioner, comprising:

[0061] A housing 1, having an upper air outlet 11 formed at its upper part and a lower air outlet 13 formed at its lower part;

[0062] An air duct component 4, arranged inside the housing 1 along the height direction of the housing 1. The upper end of the air duct component 4 communicates with the upper air outlet 11, and the lower end of the air duct component 4 communicates with the lower air outlet 13. A body housing passage 5 is formed between the outside of the air duct component 4 and the housing 1, and a fan air duct is formed inside;

[0063] A fan assembly, arranged in the fan air duct of the air duct component 4, having an air inlet axially communicating with the body housing passage 5; preferably, the fan air duct is a centrifugal air duct and the fan assembly is a centrifugal fan assembly;

[0064] A heat exchanger assembly 100, arranged in the body housing passage 5, having opposite first and second heat exchange surfaces 1001 and 1002. The first heat exchange surface 1001 faces the housing 1, and the second heat exchange surface 1002 faces the air duct component 4;

[0065] Wherein a first heat exchange cavity 1003 with a gradually changing cross-sectional area in the height direction of the housing 1 is formed between the first heat exchange surface 1001 facing the housing 1 and the housing 1, and a second heat exchange cavity 1004 with a gradually changing cross-sectional area in the height direction of the housing 1 is formed between the second heat exchange surface 1002 facing the air duct component 4 and the air duct component 4;

[0066] Wherein the first heat exchange cavity 1003 and the second heat exchange cavity 1004 are communicated through the heat exchanger assembly 100 and the gradual change rules of the first heat exchange cavity 1003 and the second heat exchange cavity 1004 are opposite.

[0067] In the embodiment of the present invention, by arranging the heat exchanger assembly 100 directly in front of the air inlet of the air duct component's fan cavity, it ensures that the incoming air is evenly distributed on the surface of the heat exchanger assembly 100, ensures that the incoming air surface of the heat exchanger assembly 100 remains unchanged during reversible air supply, and improves the heat exchange efficiency of the heat exchanger assembly.

[0068] Specifically, as Figure 3 shown, the heat exchanger assembly 100 includes a V-shaped heat exchanger with an opening facing the air duct component 4. The V-shaped heat exchanger includes a V-shaped first heat exchange surface 1001 disposed on one side facing the housing 1 and a V-shaped second heat exchange surface 1002 disposed on one side facing the air duct component 4;

[0069] The V-shaped first heat exchange surface 1001 includes a first upper heat exchange surface 10011 that extends obliquely upward from the middle of the heat exchanger assembly 100, and a first lower heat exchange surface 10012 that extends obliquely downward from the middle of the heat exchange assembly 100. A first upper heat exchange cavity 10031 that tapers from top to bottom is defined between the first upper heat exchange surface 10011 and the housing 1, and a first lower heat exchange cavity 10032 that tapers from bottom to top is defined between the first lower heat exchange surface 10012 and the housing 1. The first upper heat exchange cavity 10031 and the first lower heat exchange cavity 10032 communicate with each other at the middle position of the heat exchanger assembly 100 to form a first heat exchange cavity 1003;

[0070] The V-shaped second heat exchange surface 1002 includes a second upper heat exchange surface 10021 that extends obliquely upward from the middle of the heat exchanger assembly 100, and a second lower heat exchange surface 10022 that extends obliquely downward from the middle of the heat exchanger assembly 100. A second upper heat exchange cavity 10041 that expands from top to bottom is defined between the second upper heat exchange surface 10021 and the air duct component 4, and a second lower heat exchange cavity 10042 that expands from bottom to top is defined between the second lower heat exchange surface 10022 and the air duct component 4. The second upper heat exchange cavity and the second lower heat exchange cavity communicate with each other at the middle position of the heat exchanger assembly to form a second heat exchange cavity;

[0071] Among them, the first upper heat exchange cavity 10031 is opposite to the second upper heat exchange cavity 10041, and the first lower heat exchange cavity 10032 is opposite to the second lower heat exchange cavity 10042.

[0072] More specifically, there are two sets of heat exchanger assemblies 100, and the two sets of heat exchanger assemblies 100 are symmetrically distributed on both sides of the air duct component 4;

[0073] Air inlet ports are formed at both ends of the fan assembly on the air duct component 4 in its axial direction;

[0074] Each heat exchanger assembly 100 corresponds to one air inlet port of the fan assembly.

[0075] More specifically, as Figure 2 shown, a cavity for accommodating the air duct component 4 is formed between the two sets of heat exchanger assemblies 100;

[0076] The air duct component 4 is accommodated in the cavity and fixedly connected to the heat exchanger assembly 100.

[0077] In any of the above embodiments, asFigures 3 - 5 As shown, the fan air duct includes an upper fan air duct 41 and a lower fan air duct 42 that are independent of each other and vertically distributed. The fan assembly includes an upper fan assembly 8 and a lower fan assembly 9;

[0078] The upper fan assembly 8 is arranged in the upper fan air duct 41, and the lower fan assembly 9 is arranged in the lower fan air duct 42.

[0079] Among them, the upper half of the heat exchanger assembly 100 corresponds to the air inlet at one axial end of the upper fan assembly 8;

[0080] The lower half of the heat exchanger assembly 100 corresponds to the air inlet at the other axial end of the lower fan assembly 9.

[0081] In any of the above embodiments, the air duct component further includes an upper air outlet duct 6 and a lower air outlet duct 7;

[0082] The upper end of the upper air outlet duct 6 is connected to the upper air outlet 11, and the lower end is connected to the upper fan air duct 41;

[0083] The upper end of the lower air outlet duct 7 is connected to the lower fan air duct 42, and the lower end is connected to the lower air outlet 13;

[0084] An upper return air opening 411 communicating the upper air outlet duct 6 and the fuselage shell channel 5 is provided on the air duct wall of the upper fan air duct 41. An upper wind blocking mechanism 412 is rotatably arranged at the position of the upper return air opening 411. The upper wind blocking mechanism 412 can cut off the connection between the upper air outlet duct 6 and the upper fan air duct 41 while opening the upper return air opening 411, and connect the upper air outlet duct 6 and the upper fan air duct 41 while closing the upper return air opening 411;

[0085] A lower return air opening 421 communicating the lower air outlet duct 7 and the fuselage shell channel 5 is provided on the air duct wall of the lower fan air duct 42. A lower wind blocking mechanism 422 is rotatably arranged at the position of the lower return air opening 421. The lower wind blocking mechanism 422 can cut off the connection between the lower air outlet duct 7 and the lower fan air duct 42 while opening the lower return air opening 421, and connect the lower air outlet duct 7 and the lower fan air duct 42 while closing the lower return air opening 421.

[0086] Specifically, the upper wind blocking mechanism 412 includes an upper wind blocking member rotatably arranged at the upper return air opening 411, and the lower wind blocking mechanism 422 includes a lower wind blocking member rotatably arranged at the lower return air opening 421. Preferably, the upper wind blocking member and the lower wind blocking member are wind baffle plates;

[0087] In any of the above embodiments, an upper auxiliary air inlet 12 is further provided on the upper part of the housing 1, and a lower auxiliary air inlet 14 is further provided on the lower part of the housing;

[0088] Among them, the upper part of the fuselage shell channel 5 is connected to the upper auxiliary air inlet 12, and the lower part is connected to the lower auxiliary air inlet 14.

[0089] Specifically, the air conditioner in the embodiment of the present invention has a single upper air outlet cooling mode and a single lower air outlet heating mode.

[0090] As Figure 4 shown, when the air conditioner operates in the single upper air outlet cooling mode, the upper air damper mechanism 412 is controlled to rotate to close the upper air return opening 411, the lower air damper mechanism 422 is controlled to rotate to open the lower air return opening 421, the upper centrifugal fan system 8 is started, and the lower centrifugal fan system 9 is closed. Specifically:

[0091] When the air conditioner operates in the single upper air outlet cooling mode, as Figure 4 shown, the upper air damper mechanism 412 is driven to rotate to close the upper air return opening 411, the lower air damper mechanism 422 is driven to rotate to open the lower air return opening 421, the upper fan air duct 41 is opened, the lower fan air duct 42 is closed, the lower air outlet 13 is converted into an air inlet, the lower air outlet 13 is communicated with the lower air return opening 421 through the lower air duct 7, the upper centrifugal fan system 8 is started, and the lower centrifugal fan system 9 stops operating. At this time, a part of the indoor air enters the fuselage shell channel 5 from the lower air outlet 13 at the bottom of the fuselage through the lower air duct 7 and the lower air return opening 421, and another part of the indoor air enters the fuselage shell channel 5 from the upper auxiliary air inlet 12 at the top of the fuselage and the lower auxiliary air inlet 14 at the bottom of the fuselage, and is blown out from the upper air outlet 11 at the top of the fuselage under the action of the upper centrifugal fan system 8.

[0092] As Figure 5 shown, when the air conditioner operates in the single lower air outlet heating mode, the upper air damper mechanism 412 is controlled to rotate to open the upper air return opening 411, the lower air damper mechanism 422 is controlled to rotate to close the lower air return opening 421, the upper centrifugal fan system 8 is closed, and the lower centrifugal fan system 9 is started.

[0093] Specifically, as Figure 5 shown, the upper air damper mechanism 412 is driven to rotate to open the upper air return opening 411, the lower air damper mechanism 422 is driven to rotate to open the lower air return opening 421, the upper fan air duct 41 is closed, the lower fan air duct 42 is opened. At this time, the upper air outlet 11 is converted into an air inlet, the upper air outlet 11 is communicated with the upper air return opening 411 through the upper air duct 6, the lower centrifugal fan system 9 is started, and the upper centrifugal fan system 8 stops operating. At this time, a part of the indoor air enters the fuselage shell channel 5 from the upper air outlet 11 at the top of the fuselage through the upper air duct 6 and the upper air return opening 411, and another part of the indoor air enters the fuselage shell channel 5 from the upper auxiliary air inlet 12 at the top of the fuselage and the lower auxiliary air inlet 14 at the bottom of the fuselage 1, and is blown out from the lower air outlet 13 at the bottom of the fuselage under the action of the lower centrifugal fan system 9.

[0094] In any of the above embodiments, as Figure 4 shown, the fuselage 1 includes:

[0095] An air inlet component 1a, with the front and top of the air inlet component 1a being open and an accommodation space formed inside;

[0096] A panel component 1b, which is installed at the open position in the front of the air inlet component 1a;

[0097] A top cover component 1c, which is installed at the open position on the top of the air inlet component 1a;

[0098] A base component 1d, which is installed at the bottom of the air inlet component 1a;

[0099] Among them, an upper air inlet 11 with an upward opening direction and an upper auxiliary air inlet 12 are defined between the air inlet component 1a, the top cover component 1c and the panel component 1b, and a lower air inlet 13 with a forward opening direction and a lower auxiliary air inlet 14 with a downward opening direction are defined between the air inlet component 1a, the base component 1d and the panel component 1b.

[0100] The above specifically shows and describes exemplary embodiments of the present disclosure. It should be understood that the present disclosure is not limited to the detailed structures, setting manners or implementation methods described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent settings included within the spirit and scope of the appended claims.

Claims

1. A cabinet air conditioner, characterized in that, Comprising: A housing (1) having an upper air inlet (11) formed at its upper part and a lower air outlet (13) formed at its lower part; An air duct component (4) arranged inside the housing (1) along the height direction of the housing (1). The upper end of the air duct component (4) communicates with the upper air inlet (11), and the lower end of the air duct component (4) communicates with the lower air outlet (13). A fuselage housing passage (5) is formed between the outside of the air duct component (4) and the housing (1), and a fan air duct is formed inside; A fan assembly provided in the fan air duct of the air duct component (4), and having an air inlet axially communicating with the fuselage housing passage (5); A heat exchanger assembly (100) provided in the fuselage housing passage (5). The heat exchanger assembly (100) has opposite first and second heat exchange surfaces (1001, 1002). The first heat exchange surface (1001) faces the housing (1), and the second heat exchange surface (1002) faces the air duct component (4); Wherein a first heat exchange cavity (1003) with a gradually changing cross-sectional area in the height direction of the housing (1) is formed between the first heat exchange surface (1001) facing the housing (1) and the housing (1), and a second heat exchange cavity (1004) with a gradually changing cross-sectional area in the height direction of the housing (1) is formed between the second heat exchange surface (1002) facing the air duct component (4) and the air duct component (4); Wherein the first heat exchange cavity (1003) and the second heat exchange cavity (1004) are communicated through the heat exchanger assembly (100), and the gradual change rules of the first heat exchange cavity (1003) and the second heat exchange cavity (1004) are opposite; 2. The cabinet air conditioner according to claim 1, wherein, The heat exchanger assembly (100) includes a V-shaped heat exchanger with an opening facing the air duct component (4). The V-shaped heat exchanger includes a V-shaped first heat exchange surface (1001) arranged on the side facing the housing (1) and a V-shaped second heat exchange surface (1002) arranged on the side facing the air duct component (4); The V-shaped first heat exchange surface (1001) includes a first upper heat exchange surface (10011) inclined upwardly from the middle of the heat exchanger assembly (100) and a first lower heat exchange surface (10012) inclined downwardly from the middle of the heat exchange assembly (100). A first upper heat exchange cavity (10031) in a gradually shrinking form from top to bottom is defined between the first upper heat exchange surface (10011) and the housing (1), and a first lower heat exchange cavity (10032) in a gradually shrinking form from bottom to top is defined between the first lower heat exchange surface (10012) and the housing (1). The first upper heat exchange cavity (10031) and the first lower heat exchange cavity (10032) communicate at the middle position of the heat exchanger assembly (100) to form the first heat exchange cavity (1003); The V-shaped second heat exchange surface (1002) includes a second upper heat exchange surface (10021) that extends obliquely upward from the middle of the heat exchanger assembly (100), and a second lower heat exchange surface (10022) that extends obliquely downward from the middle of the heat exchanger assembly (100). A second upper heat exchange cavity (10041) that expands gradually from top to bottom is defined between the second upper heat exchange surface (10021) and the air duct component (4). A second lower heat exchange cavity (10042) that expands gradually from bottom to top is defined between the second lower heat exchange surface (10022) and the air duct component (4). The second upper heat exchange cavity and the second lower heat exchange cavity communicate with each other at the middle position of the heat exchanger assembly to form the second heat exchange cavity; Wherein the first upper heat exchange cavity (10031) is opposite to the second upper heat exchange cavity (10041), and the first lower heat exchange cavity (10032) is opposite to the second lower heat exchange cavity (10042).

3. The cabinet air conditioner according to claim 2, characterized in that, Two sets of the heat exchanger assemblies (100) are provided, and the two sets of heat exchanger assemblies (100) are symmetrically distributed on both sides of the air duct component (4); Air inlet openings are formed at both ends of the fan assembly on the air duct component (4) in its axial direction; One air inlet opening of the fan assembly corresponds to each heat exchanger assembly (100).

4. The cabinet air conditioner according to claim 3, wherein A cavity for accommodating the air duct component (4) is formed between the two sets of heat exchanger assemblies (100); The air duct component (4) is accommodated in the cavity and fixedly connected to the heat exchanger assembly (100).

5. The cabinet air conditioner according to claim 2, characterized in that, The fan air duct includes an upper fan air duct (41) and a lower fan air duct (42) that are independent of each other and are distributed up and down. The fan assembly includes an upper fan assembly (8) and a lower fan assembly (9); The upper fan assembly (8) is arranged in the upper fan air duct (41), and the lower fan assembly (9) is arranged in the lower fan air duct (42).

6. The cabinet air conditioner according to claim 5, wherein The upper half of the heat exchanger assembly (100) corresponds to the air inlet opening at one axial end of the upper fan assembly (8); The lower half of the heat exchanger assembly (100) corresponds to the air inlet opening at the other axial end of the lower fan assembly (9).

7. The cabinet air conditioner according to claim 5 or 6, characterized in that, The air duct component further includes an upper air outlet duct (6) and a lower air outlet duct (7); The upper end of the upper air outlet duct (6) communicates with the upper air outlet (11), and the lower end communicates with the upper fan air duct (41); The upper end of the lower air outlet duct (7) communicates with the lower fan air duct (42), and the lower end communicates with the lower air outlet (13); An upper air return opening (411) that communicates the upper air outlet duct (6) and the fuselage housing passage (5) is provided on the duct wall of the upper fan air duct (41). An upper air damper mechanism (412) is rotatably arranged at the position of the upper air return opening (411). The upper air damper mechanism (412) can shut off the connection between the upper air outlet duct (6) and the upper fan air duct (41) while opening the upper air return opening (411), and connect the upper air outlet duct (6) and the upper fan air duct (41) while closing the upper air return opening (411); An air return opening (421) communicating the lower air outlet duct (7) and the fuselage housing passage (5) is provided on the duct wall of the lower fan duct (42). A lower air damper mechanism (422) is rotatably provided at the position of the air return opening (421). The lower air damper mechanism (422) can cut off the connection between the lower air outlet duct (7) and the lower fan duct (42) while opening the air return opening (421), and connect the lower air outlet duct (7) and the lower fan duct (42) while closing the air return opening (421).

8. The cabinet air conditioner according to claim 7, characterized in that, The upper air damper mechanism (412) includes an upper air damper member rotatably provided at the upper air return opening (411), and the lower air damper mechanism (422) includes a lower air damper member rotatably provided at the lower air return opening (421).

9. The cabinet air conditioner according to claim 1, characterized in that, An upper auxiliary air inlet (12) is further provided at the upper part of the housing (1), and a lower auxiliary air inlet (14) is further provided at the lower part of the housing (1). Wherein the upper part of the fuselage housing passage (5) communicates with the upper auxiliary air inlet (12), and the lower part communicates with the lower auxiliary air inlet (14).

10. The cabinet air conditioner according to claim 9, characterized in that, The housing (1) includes: An air inlet member (1a), the front and top of the air inlet member (1a) are open, and an accommodation space is formed inside; A panel member (1b), the panel member (1b) is installed at the open position in front of the air inlet member (1a); A top cover member (1c), the top cover member (1c) is installed at the open position on the top of the air inlet member (1a); A base member (1d), the base member (1d) is installed at the bottom of the air inlet member (1a); Wherein an upper air inlet (11) and an upper auxiliary air inlet (12) with an upward opening direction are defined between the air inlet member (1a), the top cover member (1c) and the panel member (1b), and a lower air inlet (13) with an opening direction forward and a lower auxiliary air inlet (14) with an opening direction backward are defined between the air inlet member (1a), the base member (1d) and the panel member (1b).

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