Shell assembly and air conditioner

Abstract

The shell assembly comprises a shell and a sound absorption plate, an air inlet is formed in the lower wall face of the shell, an air outlet is formed in the upper side of the shell, the inner wall of the shell comprises a first wall face and a second wall face, the first wall face and the second wall face are located on the front side and the rear side of a heat exchanger respectively, and the first wall face and the second wall face are arranged on the front side and the rear side of the heat exchanger respectively. At least one of the first wall face and the second wall face and the wall face of the heat exchanger define an air inlet channel, the sound absorption board is arranged in the air inlet channel and connected with at least one of the first wall face and the second wall face, and a plurality of sound absorption holes are distributed in the sound absorption board. According to the shell assembly, noise generated during air inlet can be reduced, and the use experience feeling of a user can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air supply equipment technical field, specifically, relate to a casing assembly and air conditioner. BACKGROUND

[0002] With the development of economy and the improvement of living standards, people's expectation for air conditioner is not only faster and better refrigeration and heating speed, but also more and more attention to the comfort of air conditioner use. In the related art, when the outside airflow enters into the casing of the indoor unit of the air conditioner through the air inlet, a large noise is generated, which affects the user experience. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in the related art.

[0004] Therefore, the casing assembly provided by the embodiment of the utility model can reduce the noise when air is inhaled, and is beneficial to improve the user experience.

[0005] The embodiment of the utility model provides an air conditioner.

[0006] The casing assembly of the embodiment of the utility model comprises: a casing, the lower wall surface of the casing is provided with an air inlet, the upper side of the casing is provided with an air outlet, the inner wall of the casing comprises a first wall surface and a second wall surface, the first wall surface and the second wall surface are respectively located on the front and back sides of the heat exchanger, and at least one of the first wall surface and the second wall surface and the wall surface of the heat exchanger enclose an air inlet air duct;Sound absorbing board, the sound absorbing board is arranged in the air inlet air duct, the sound absorbing board is connected with at least one of the first wall surface and the second wall surface, and a plurality of sound absorbing holes are arranged on the sound absorbing board.

[0007] According to the casing assembly of the embodiment of the utility model, since the sound absorbing board is arranged in the air inlet air duct, and the sound absorbing board is connected with at least one of the first wall surface and the second wall surface, when the outside air is inhaled into the air inlet air duct through the air inlet, the airflow will impact the inner wall of the air inlet air duct at this time, and the plurality of sound absorbing holes on the sound absorbing board can absorb the noise generated by the airflow impacting the first wall surface and / or the second wall surface, thereby reducing the noise generated by the airflow impacting the inner wall of the air inlet air duct when the air conditioner inhales air. Therefore, the casing assembly of the embodiment of the utility model can reduce the noise when air is inhaled, and is beneficial to improve the user experience.

[0008] In some embodiments, the sound absorbing board and the inner wall of the casing define a sound absorbing cavity, and the sound absorbing holes are in communication with the sound absorbing cavity;Or, the sound absorbing cavity is arranged in the sound absorbing board, and the sound absorbing holes are in communication with the sound absorbing cavity.

[0009] In some embodiments, the air inlet duct comprises a first air duct and a second air duct, the first wall is located at the front side of the shell and encloses the first air duct with the front wall of the heat exchanger, the second wall is located at the rear side of the shell and encloses the second air duct with the rear wall of the heat exchanger, in the same horizontal direction, the width of the first air duct along the front-rear direction is greater than the width of the second air duct along the front-rear direction, and the sound-absorbing panel is arranged on the first wall.

[0010] In some embodiments, the air inlet duct comprises a first air duct and a second air duct, the first wall is located at the front side of the shell and encloses the first air duct with the front wall of the heat exchanger, the second wall is located at the rear side of the shell and encloses the second air duct with the rear wall of the heat exchanger, in the same horizontal direction, the width of the first air duct along the front-rear direction is greater than the width of the second air duct along the front-rear direction, and the sound-absorbing panel is arranged on the first wall.

[0011] In some embodiments, the height difference between the lower edge of the sound-absorbing panel and the air inlet is a, the height difference between the upper edge of the sound-absorbing panel and the air inlet is b, wherein 35mm≤a≤150mm and 60mm≤b≤220mm.

[0012] In some embodiments, the distance between the upper edge of the sound-absorbing panel and the lower edge of the sound-absorbing panel is L1, the air outlet is arranged on the front wall of the shell, the distance between the lower edge of the air outlet and the lower edge of the shell is L2, wherein 0.2≤L1 / L2≤0.8.

[0013] In some embodiments, the sound-absorbing cavity is defined between the sound-absorbing panel and the first wall, and the sound-absorbing holes are in communication with the sound-absorbing cavity.

[0014] In some embodiments, the thickness of the sound-absorbing panel is e, and the dimension of the sound-absorbing cavity along the thickness direction of the sound-absorbing panel is f, wherein 1.5mm≤e≤5mm and 2mm≤f≤20mm.

[0015] In some embodiments, the aperture of the sound-absorbing hole is c, wherein 1mm≤c≤6mm; and / or, the distance between two adjacent sound-absorbing holes is d, wherein 2mm≤d≤8mm.

[0016] In some embodiments, the sound-absorbing panel is detachably connected with the shell; and / or, a plurality of sound-absorbing panels are arranged in sequence along the length direction of the shell, a supporting rib is arranged between each two adjacent sound-absorbing panels, and the supporting rib extends along the up-down direction of the shell.

[0017] The air conditioner of another embodiment of the utility model, including shell subassembly, the shell subassembly is any one of the shell subassembly in the embodiment of the utility model;Heat exchanger, the heat exchanger is located in the shell, and the heat exchanger is opposite with the air inlet arrangement.

[0018] The air conditioner according to the embodiment of the utility model, since the sound absorption board is arranged in the air inlet air duct, and the sound absorption board is connected with at least one of the first wall surface and the second wall surface, when the air outside is sucked into the air inlet air duct through the air inlet, at this time, the airflow will impact the inner wall of the air inlet air duct, and the plurality of sound absorption holes on the sound absorption board can absorb the noise generated by the airflow impacting the first wall surface and / or the second wall surface, thereby reducing the noise generated by the airflow impacting the inner wall of the air inlet air duct when the air conditioner is in the air inlet state. Therefore, the air conditioner according to the embodiment of the utility model can reduce the noise in the air inlet state, which is beneficial to improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the schematic diagram of the air conditioner of the embodiment of the utility model.

[0020] Figure 2 is the partial schematic diagram of the air conditioner of the embodiment of the utility model.

[0021] Figure 3 is the installation schematic diagram of the frame and the sound absorption board of the air conditioner of the embodiment of the utility model.

[0022] Figure 4 is the installation schematic diagram of the frame and the sound absorption board of the air conditioner of the embodiment of the utility model from another perspective.

[0023] REFERENCE NUMERALS:

[0024] 1, shell;11, air inlet;12, air outlet;13, first wall surface;14, second wall surface;15, front panel;16, base;17, support rib;

[0025] 2, air inlet air duct;21, first air duct;22, second air duct;

[0026] 3, sound absorption board;31, sound absorption hole;32, sound absorption cavity;

[0027] 4, heat exchanger;

[0028] 5, water pan;

[0029] 6, fan wheel. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0031] The accompanying drawings are referred to in the following detailed description of the embodiments of the present application. Figures 1 to 4 The shell assembly and the air conditioner of the embodiments of the present application are described.

[0032] As shown in Figure 1 and Figure 2 The shell assembly of the embodiments of the present application comprises a shell 1 and a sound-absorbing plate 3. The lower wall surface of the shell 1 is provided with an air inlet 11, the upper side of the shell 1 is provided with an air outlet 12, the inner wall of the shell 1 comprises a first wall surface 13 and a second wall surface 14, the first wall surface 13 and the second wall surface 14 are respectively located on the front and rear sides of the heat exchanger 4, at least one of the first wall surface 13 and the second wall surface 14 and the wall surface of the heat exchanger 4 form an air inlet air duct 2, the sound-absorbing plate 3 is arranged in the air inlet air duct 2, the sound-absorbing plate 3 is connected with at least one of the first wall surface 13 and the second wall surface 14, and a plurality of sound-absorbing holes 31 are arranged on the sound-absorbing plate 3.

[0033] For example, the sound-absorbing plate 3 can be arranged only on the first wall surface 13. Alternatively, the sound-absorbing plate 3 is arranged only on the second wall surface 14. For another example, the sound-absorbing plate 3 is arranged on both the first wall surface 13 and the second wall surface 14.

[0034] It should be noted that the up-down, front-back and left-right directions of the shell 1 are consistent with the up-down, front-back and left-right directions of the air conditioner after installation.

[0035] According to the shell assembly of the embodiments of the present application, since the sound-absorbing plate 3 is arranged in the air inlet air duct 2 and connected with at least one of the first wall surface 13 and the second wall surface 14, when the air outside is sucked into the air inlet air duct 2 through the air inlet 11, the airflow will impact the inner wall of the air inlet air duct 2 at this time, and the plurality of sound-absorbing holes 31 on the sound-absorbing plate 3 can absorb the noise generated by the airflow impacting the first wall surface 13 and / or the second wall surface 14, thereby reducing the noise generated by the airflow impacting the inner wall of the air inlet air duct 2 when the air conditioner is in the air inlet state. Therefore, the shell assembly of the embodiments of the present application can reduce the noise in the air inlet state, which is beneficial to improve the user experience.

[0036] Optionally, as shown in Figure 1 and Figure 2 The sound-absorbing plate 3 and the inner wall of the shell 1 define a sound-absorbing cavity 32, and the sound-absorbing holes 31 are in communication with the sound-absorbing cavity 32. It can be understood that the sound-absorbing holes 31 and the sound-absorbing cavity 32 can constitute a resistive sound-absorbing structure, whereby the airflow passing through the sound-absorbing plate 3 can be absorbed by the resistive sound-absorbing structure composed of the sound-absorbing holes 31 and the sound-absorbing cavity 32, so as to reduce the noise generated by the airflow impacting the inner wall of the air inlet air duct 2.

[0037] In another example, the sound absorption plate 3 is provided with a sound absorption cavity 32, and the sound absorption hole 31 is in communication with the sound absorption cavity 32. The sound absorption hole 31 and the sound absorption cavity 32 can constitute a resistive sound absorption structure, so that the airflow passing through the sound absorption plate 3 can be absorbed by the resistive sound absorption structure composed of the sound absorption hole 31 and the sound absorption cavity 32, so as to reduce the noise generated by the airflow impacting the inner wall of the air inlet duct 2.

[0038] It can be understood that the sound absorption cavity 32 can be formed by the sound absorption plate 3 and the inner wall of the shell 1 being arranged in a spaced manner. Alternatively, the sound absorption plate 3 is internally hollow to constitute the sound absorption cavity 32, which is not limited by the utility model.

[0039] Optionally, as shown in Figure 1 and Figure 2 , the air inlet duct 2 includes a first air duct 21 and a second air duct 22, the first wall surface 13 is located on the front side of the shell 1 and surrounds the front wall surface of the heat exchanger 4 to form the first air duct 21, and the second wall surface 14 is located on the rear side of the shell 1 and surrounds the rear wall surface of the heat exchanger 4 to form the second air duct 22. In the same horizontal direction, the width of the first air duct 21 in the front-rear direction is greater than the width of the second air duct 22 in the front-rear direction, and the sound absorption plate 3 is arranged on the first wall surface 13.

[0040] It can be understood that the sound absorption plate 3 is arranged on the wider side of the first air duct 21 and the second air duct 22. In other words, in the same horizontal plane, the size of the first air duct 21 in the front-rear direction is greater than the size of the second air duct 22 in the front-rear direction, the width of the air duct surrounded by the first wall surface 13 and the heat exchanger 4 is greater, and the sound absorption plate 3 is arranged on the first wall surface 13, that is, the sound absorption plate 3 is arranged on the inner side of the front panel 15 of the shell 1.

[0041] As shown in Figure 1 and Figure 2 , since the air inlet duct 2 surrounded by the front panel 15 and the heat exchanger 4 is large, the airflow sucked into the air inlet duct 2 by the air inlet 11 will impact the front wall surface of the shell 1, which will cause the position of the front panel 15 to easily produce noise. The sound absorption plate 3 can absorb the noise generated by the airflow impacting the front wall surface of the shell 1, thereby improving the mute effect of the air conditioner during use and improving the user experience.

[0042] The sound absorption plate 3 and the first wall surface 13 define a sound absorption cavity 32, and the sound absorption hole 31 is in communication with the sound absorption cavity 32, so as to further reduce the noise generated by the airflow impacting the front wall surface of the shell 1, and the noise reduction effect is good.

[0043] In another example, the air inlet duct 2 comprises a first air duct 21 and a second air duct 22, the first wall surface 13 is located on the front side of the shell 1 and surrounds the first air duct 21 with the front wall surface of the heat exchanger 4, and the second wall surface 14 is located on the rear side of the shell 1 and surrounds the second air duct 22 with the rear wall surface of the heat exchanger 4. In the same horizontal direction, the width of the second air duct 22 in the front-rear direction is greater than the width of the first air duct 21 in the front-rear direction, and the sound-absorbing panel 3 is arranged on the second wall surface 14.

[0044] It can be understood that the sound-absorbing panel 3 is arranged on the wider side of the first air duct 21 and the second air duct 22. In other words, in the same horizontal plane, the size of the second air duct 22 in the front-rear direction is greater than the size of the first air duct 21 in the front-rear direction, the width of the air duct surrounded by the second wall surface 14 and the heat exchanger 4 is greater, and the sound-absorbing panel 3 is arranged on the second wall surface 14, that is, the sound-absorbing panel 3 is arranged on the inner wall surface of the base 16 of the shell 1.

[0045] Since the air inlet duct 2 surrounded by the base 16 and the heat exchanger 4 is larger, the airflow sucked into the air inlet duct 2 by the air inlet 11 will impact the rear wall surface of the shell 1, which will cause the position of the base 16 to easily produce noise, and the sound-absorbing panel 3 can absorb the noise generated by the airflow impacting the rear wall surface of the shell 1, thereby improving the mute effect of the air conditioner during use and improving the user experience.

[0046] Optionally, as shown in Figure 1 The height difference between the lower edge of the sound-absorbing panel 3 and the air inlet 11 is a, and the height difference between the upper edge of the sound-absorbing panel 3 and the air inlet 11 is b, wherein 35mm≤a≤150mm and 60mm≤b≤220mm.

[0047] For example, a can be 35mm, 50mm, 70mm, 90mm, 110mm, 130mm, or 150mm, and b can be 60mm, 80mm, 100mm, 130mm, 160mm, 190mm, or 220mm. It should be noted that when a and b meet the above parameter ranges, they also need to meet the condition that b is greater than a, that is, the upper edge of the sound-absorbing panel 3 is higher than the lower edge of the sound-absorbing panel 3.

[0048] The inventors of the present application have found through experimental research that when the sound-absorbing panel 3 meets the above arrangement parameters, the sound-absorbing panel 3 can absorb most of the noise generated by airflow impacting the wall surface, can significantly reduce the noise generated by the air conditioner during operation, and has good use effect.

[0049] Optionally, as shown in Figure 1As shown in the drawings, the distance between the upper edge of the sound-absorbing plate 3 and the lower edge of the sound-absorbing plate 3 is L1, the air outlet 12 is arranged on the front wall surface of the shell 1, and the distance between the lower edge of the air outlet 12 and the lower edge of the shell 1 is L2, wherein 0.2≤L1 / L2≤0.8. For example, L1 / L2 can be 0.2, 0.4, 0.6, or 0.8. In this way, it can not only ensure that the sound-absorbing plate 3 absorbs sound of most of the airflow impacting the front panel 15, but also reduce the occupation of the space in the shell 1, so that the position arrangement of the sound-absorbing plate 3 is more reasonable.

[0050] In some embodiments, as Figure 2 As shown in the drawings, the sound-absorbing plate 3 is arranged on the first wall surface 13, and the sound-absorbing plate 3 and the first wall surface 13 define a sound-absorbing cavity 32. The thickness of the sound-absorbing plate 3 is e, and the size of the sound-absorbing cavity 32 along the thickness direction of the sound-absorbing plate 3 is f, wherein 1.5mm≤e≤5mm and 2mm≤f≤20mm. It can be understood that the thickness of the sound-absorbing plate 3 is the axial length of the suction hole.

[0051] For example, e can be 1.5mm, 2mm, 3mm, 4mm, 5mm, and f can be 2mm, 5mm, 10mm, 15mm, or 20mm. When the sound-absorbing plate 3 and the sound-absorbing cavity 32 are arranged with the above parameters, the sound-absorbing structure composed of the sound-absorbing plate 3 and the sound-absorbing cavity 32 can have good sound-absorbing effect in the working frequency range of the air conditioner.

[0052] Specifically, as Figure 2 As shown in the drawings, the hole diameter of the sound-absorbing hole 31 is c, wherein 1mm≤c≤6mm. The distance between two adjacent sound-absorbing holes 31 is d, wherein 2mm≤d≤8mm. For example, c can be 1mm, 2mm, 3mm, 4mm, 5mm, or 6mm, and d can be 2mm, 4mm, 6mm, or 8mm, so that the structure design of the sound-absorbing plate 3 is more reasonable, and the sound-absorbing effect is better.

[0053] In some embodiments, the sound-absorbing plate 3 is detachably connected with the shell 1, so that the sound-absorbing plate 3 and the shell 1 can be manufactured separately and then assembled together, thereby simplifying the manufacturing process of the air conditioner, and the sound-absorbing plate 3 and the shell 1 can be made of different materials.

[0054] For example, the sound-absorbing plate 3 and the shell 1 can be assembled by clamping, inserting, or threaded connection, and the present application does not limit this.

[0055] Optionally, as Figure 3 and Figure 4As shown, the sound absorption plate 3 is multiple, multiple sound absorption plate 3 along the length direction of the shell 1 sequentially arranged, every two adjacent sound absorption plate 3 between the support rib 17, support rib 17 along the up and down direction of the shell 1 extension. Thus can not affect the normal processing and manufacturing of the shell 1, namely ensure the structural strength of the shell 1, can improve the sound absorption effect of air conditioner.

[0056] As Figure 1 shown, another embodiment of the air conditioner of the utility model, including shell assembly, heat exchanger 4 and wind wheel 6, shell assembly is the shell assembly of the utility model, heat exchanger 4 is located in the shell 1, and one side of heat exchanger 4 is arranged opposite to the air inlet 11, and the other side of heat exchanger 4 is arranged opposite to the wind wheel 6.

[0057] According to the air conditioner of the embodiment of the utility model, since the sound absorption plate 3 is arranged in the air inlet air duct 2, and the sound absorption plate 3 is connected with at least one of the first wall 13 and the second wall 14, when the air outside is sucked into the air inlet air duct 2 through the air inlet 11, at this time, the airflow will impact the inner wall of the air inlet air duct 2, and the plurality of sound absorption holes 31 on the sound absorption plate 3 can absorb the noise generated by the airflow impacting the first wall 13 and / or the second wall 14, thereby reducing the noise generated by the airflow impacting the inner wall of the air inlet air duct 2 when the air conditioner is in the air inlet mode. Therefore, the air conditioner of the embodiment of the utility model can reduce the noise in the air inlet mode, which is beneficial to improve the user experience.

[0058] As Figure 1 shown, the air inlet 11 is arranged on the lower wall of the shell 1, and the air outlet 12 is arranged on the front panel 15 of the shell 11 and adjacent to the upper side of the shell 1, that is, the air conditioner adopts the form of lower air inlet and upper air outlet, thereby improving the air supply effect of the air conditioner.

[0059] For example, as Figure 1 shown, the heat exchanger 4 can be V-shaped, and the tip of the V-shaped heat exchanger 4 faces the air inlet 11. For another example, the heat exchanger 4 can be a straight plate type, and the straight plate type heat exchanger 4 is arranged in the shell 1 in an inclined manner.

[0060] Specifically, as Figure 1 shown, the air conditioner further comprises a water pan 5, and the water pan 5 is arranged in the shell 1 and located at the lower edge of the heat exchanger 4 to receive the condensed water dripping from the wall surface of the heat exchanger 4.

[0061] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0062] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0063] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0064] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0065] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic being described with reference to the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the features of different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0066] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and modifications of the above embodiments made by the person skilled in the art are within the protection scope of the present application.

Claims

1. A housing assembly, characterized in that, include: The shell (1) has an air inlet (11) on its lower wall and an air outlet (12) on its upper side. The inner wall of the shell (1) includes a first wall surface (13) and a second wall surface (14). The first wall surface (13) and the second wall surface (14) are located on the front and rear sides of the heat exchanger (4), respectively. At least one of the first wall surface (13) and the second wall surface (14) forms an air inlet duct (2) with the wall of the heat exchanger (4). A sound-absorbing panel (3) is disposed in the air inlet duct (2). The sound-absorbing panel (3) is connected to at least one of the first wall surface (13) and the second wall surface (14). A plurality of sound-absorbing holes (31) are arranged on the sound-absorbing panel (3).

2. The housing assembly according to claim 1, characterized in that, The sound-absorbing plate (3) defines a sound-absorbing cavity (32) between itself and the inner wall of the housing (1), and the sound-absorbing hole (31) communicates with the sound-absorbing cavity (32); Alternatively, the sound-absorbing plate (3) may have a sound-absorbing cavity (32) inside, and the sound-absorbing hole (31) may be connected to the sound-absorbing cavity (32).

3. The housing assembly according to claim 1, characterized in that, The air inlet duct (2) includes a first air duct (21) and a second air duct (22). The first wall surface (13) is located on the front side of the shell (1) and forms the first air duct (21) with the front wall surface of the heat exchanger (4). The second wall surface (14) is located on the rear side of the shell (1) and forms the second air duct (22) with the rear wall surface of the heat exchanger (4). In the same horizontal direction, the width of the first air duct (21) in the front-rear direction is greater than the width of the second air duct (22) in the front-rear direction. The sound-absorbing plate (3) is disposed on the first wall surface (13).

4. The housing assembly according to claim 1, characterized in that, The air inlet duct (2) includes a first air duct (21) and a second air duct (22). The first wall surface (13) is located on the front side of the shell (1) and forms the first air duct (21) with the front wall surface of the heat exchanger (4). The second wall surface (14) is located on the rear side of the shell (1) and forms the second air duct (22) with the rear wall surface of the heat exchanger (4). In the same horizontal direction, the width of the second air duct (22) in the front-rear direction is greater than the width of the first air duct (21) in the front-rear direction. The sound-absorbing plate (3) is disposed on the second wall surface (14).

5. The housing assembly according to claim 3, characterized in that, The height difference between the lower edge of the sound-absorbing plate (3) and the air inlet (11) is a, and the height difference between the upper edge of the sound-absorbing plate (3) and the air inlet (11) is b, wherein 35mm≤a≤150mm and 60mm≤b≤220mm.

6. The housing assembly according to claim 3, characterized in that, The distance between the upper edge of the sound-absorbing plate (3) and the lower edge of the sound-absorbing plate (3) is L1. The air outlet (12) is located on the front wall of the housing (1). The distance between the lower edge of the air outlet (12) and the lower edge of the housing (1) is L2. Wherein, 0.2≤L1 / L2≤0.

8.

7. The housing assembly according to claim 3, characterized in that, The sound-absorbing plate (3) defines a sound-absorbing cavity (32) between itself and the first wall surface (13), and the sound-absorbing hole (31) communicates with the sound-absorbing cavity (32).

8. The housing assembly according to claim 7, characterized in that, The thickness of the sound-absorbing plate (3) is e, and the dimension of the sound-absorbing cavity (32) along the thickness direction of the sound-absorbing plate (3) is f, wherein 1.5mm≤e≤5mm, 2mm≤f≤20mm.

9. The housing assembly according to any one of claims 1, 2, and 7, characterized in that, The diameter of the sound-absorbing hole (31) is c, where 1mm≤c≤6mm; And / or, the distance between two adjacent sound-absorbing holes (31) is d, where 2mm≤d≤8mm.

10. The housing assembly according to any one of claims 1-8, characterized in that, The sound-absorbing panel (3) is detachably connected to the housing (1); And / or, there are multiple sound-absorbing panels (3), and the multiple sound-absorbing panels (3) are arranged sequentially along the length direction of the shell (1). A support rib (17) is provided between each two adjacent sound-absorbing panels (3), and the support rib (17) extends along the vertical direction of the shell (1).

11. An air conditioner, characterized in that, include: A housing assembly, wherein the housing assembly is the housing assembly according to any one of claims 1-10; Heat exchanger (4) is disposed inside the housing (1) and is arranged opposite to the air inlet (11).

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