Shell assembly and air conditioner

Abstract

The shell assembly comprises a shell, an air outlet duct and a wind wheel, an air inlet is formed in the bottom wall face of the shell, an air outlet is formed in the front wall face of the shell, the air outlet duct and the wind wheel are both arranged in the shell, the wind wheel is arranged at one end of the air outlet duct, and the air inlet is formed in the front wall face of the shell. The other end of the air outlet duct is communicated with the air outlet, the air outlet duct comprises a first air duct wall, one end of the first air duct wall is provided with a volute throat surface, the other end of the first air duct wall is connected with the upper edge of the air outlet, and the volute throat surface is arranged in a projection plane orthogonal to the axial direction of the wind wheel. The included angle between a first connecting line of the tail end of the volute throat face and the axis of the wind wheel and the vertical downward direction is beta1, and beta1 is larger than or equal to 50 degrees and smaller than or equal to 120 degrees. According to the shell assembly, the air supply range can be enlarged, and the air supply effect and the air supply efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field, specifically, relate to a kind of shell assembly and air conditioner. BACKGROUND

[0002] With the development of economy and the improvement of living standards, people's expectations for air conditioner are not only faster and better refrigeration and heating speed, but also more and more concerned about the air supply experience of air conditioner. In the related art, the air outlet structure design of the indoor unit of wall-mounted air conditioner is unreasonable, which leads to narrow air supply range, poor air supply effect and air supply efficiency. SUMMARY

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

[0004] Therefore, the embodiment of the utility model provides a kind of shell assembly, which can increase air supply range, improve air supply effect and air supply efficiency.

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

[0006] The shell assembly of the embodiment of the utility model includes: a shell, the bottom wall surface of the shell is provided with an air inlet, and the front wall surface of the shell is provided with an air outlet; an air outlet air duct and a fan wheel, the air outlet air duct and the fan wheel are both arranged in the shell, the fan wheel is arranged at one end of the air outlet air duct, the other end of the air outlet air duct is communicated with the air outlet, the air outlet air duct includes a first air duct wall, one end of the first air duct wall has a volute throat surface, the other end of the first air duct wall is connected with the upper edge of the air outlet, in the projection plane perpendicular to the axial direction of the fan wheel, the tail end of the volute throat surface and the first connecting line of the axis of the fan wheel and the vertically downward direction form an angle β1, wherein 50°≤β1≤120°.

[0007] According to the shell assembly of the embodiment of the utility model, by arranging the air outlet on the front wall surface of the shell, and the air outlet air duct is communicated with the air outlet, compared with the scheme that the air outlet is directed to the top wall to blow air, the problem of air flow obstruction caused by top air outlet can be avoided, the energy consumption of the air conditioner is reduced, and the air flow is uniformly distributed to a larger space in the room, so as to expand the air supply range. In addition, since the angle β1 between the tail end of the volute throat surface and the first connecting line of the axis of the fan wheel and the vertically downward direction is set in the above range, the arrangement path of the air outlet air duct can be optimized, so as to reduce the resistance of air flow passing through the volute throat surface and the noise of air flow passing through the volute throat surface. Therefore, the shell assembly of the embodiment of the utility model can increase the air supply range, improve the air supply effect and the air supply efficiency.

[0008] In some embodiments, the air outlet duct includes a second duct wall, one end of the second duct wall has a volute tongue surface, the other end of the second duct wall is connected with the lower edge of the air outlet, in the projection plane perpendicular to the axial direction of the fan wheel, the tail end of the volute tongue surface and the second connecting line of the axial center of the fan wheel and the vertically downward direction form an angle α1, where 45°≤α1≤105°.

[0009] In some embodiments, in the projection plane perpendicular to the axial direction of the fan wheel, the radius of the fan wheel is R, the tail end of the volute throat surface is below the axial center of the fan wheel, the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the front-rear direction of the shell is L1, and the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the up-down direction of the shell is H1, where R≤L1≤R+18mm, and R / 6≤H1≤2R / 3.

[0010] In some embodiments, in the projection plane perpendicular to the axial direction of the fan wheel, the radius of the fan wheel is R, the tail end of the volute throat surface is below the axial center of the fan wheel, the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the front-rear direction of the shell is L1, and the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the up-down direction of the shell is H1, where R≤L1≤R+18mm, and R / 6≤H1≤2R / 3.

[0011] In some embodiments, in the projection plane perpendicular to the axial direction of the fan wheel, the radius of the fan wheel is R, the tail end of the volute throat surface is below the axial center of the fan wheel, the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the front-rear direction of the shell is L1, and the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the up-down direction of the shell is H1, where R≤L1≤R+18mm, and R / 6≤H1≤2R / 3.

[0012] In some embodiments, in the projection plane perpendicular to the axial direction of the fan wheel, the radius of the fan wheel is R, the tail end of the volute throat surface is below the axial center of the fan wheel, the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the front-rear direction of the shell is L1, and the distance between the tail end of the volute throat surface and the axial center of the fan wheel in the up-down direction of the shell is H1, where R≤L1≤R+18mm, and R / 6≤H1≤2R / 3.

[0013] In some embodiments, the gap between any one of the volute throat surface and the volute tongue surface and the fan wheel is W, where 1mm≤W≤10mm.

[0014] In some embodiments, the first air duct wall further comprises a first air guide surface and an extension surface, one end of the first air guide surface is connected with the volute throat surface, the other end of the first air guide surface is connected with one end of the extension surface, the other end of the extension surface is connected with the upper edge of the air outlet, and the extension surface extends along the front-rear direction of the shell, and the distance between the first air guide surface and the fan gradually increases in the direction from back to front of the shell.

[0015] In some embodiments, the air outlet air duct comprises a second air duct wall, the second air duct wall comprises a volute tongue surface and a second air guide surface, the volute tongue surface is spaced apart from the fan along the radial direction of the fan, one end of the second air guide surface is connected with the volute tongue surface, and the other end of the second air guide surface is connected with the lower edge of the air outlet, and the extension surface and the second air guide surface are arranged opposite to each other along the up-down direction of the shell, and the second air guide surface gradually extends downward in the direction from back to front.

[0016] The air conditioner of another embodiment of the utility model comprises the shell assembly of any one of the embodiments of the utility model.

[0017] According to the air conditioner of the embodiment of the utility model, the air outlet is arranged on the front wall surface of the shell, and the air outlet air duct is communicated with the air outlet, compared with the scheme that the air outlet is directed to the top wall to blow air, the problem that the air flow is hindered by the top air outlet can be avoided, the energy consumption of the air conditioner is reduced, and the air flow is uniformly directed to the space in a larger range in the room to flow, so that the air supply range is expanded. In addition, since the included angle between the first connecting line between the tail end of the volute throat surface and the axis of the fan and the vertically downward direction is β1 and is arranged in the above range, the arrangement path of the air outlet air duct can be optimized, the resistance of the air flow passing through the volute throat surface is reduced, and the noise of the air flow passing through the volute throat surface is reduced. Therefore, the shell assembly of the embodiment of the utility model can expand the air supply range and improve the air supply effect and the air supply efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the schematic diagram of the air conditioner of the embodiment of the utility model.

[0019] Figure 2 is the sectional view of part of the air conditioner of the embodiment of the utility model.

[0020] Figure 3 is the partial sectional view of the shell assembly of the embodiment of the utility model.

[0021] Figure 4 is the partial sectional view of the shell assembly of another embodiment of the utility model.

[0022] REFERENCE SIGNS:

[0023] 1. Housing; 11. Air inlet; 12. Air outlet;

[0024] 2. Air outlet duct; 21. First air duct wall; 211. Snail throat surface; 212. First air guide surface; 213. Extension surface; 22. Second air duct wall; 221. Snail tongue surface; 222. Second air guide surface;

[0025] 3. Wind wheel;

[0026] 4. Heat exchanger;

[0027] O1, axis; K1, tail end of the snail throat surface; K2, head end of the snail throat surface; K3, tail end of the snail tongue surface; K4, head end of the snail tongue surface; F1, first connecting line; F2, second connecting line. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] Please refer to the following Figures 1 to 4 The present invention will be described in detail with reference to a housing assembly and an air conditioner having the same according to an embodiment of the present invention.

[0030] like Figure 2 and Figure 3 As shown, the housing assembly of the embodiment of the present invention includes: a housing 1, an air outlet duct 2 and a wind wheel 3. The bottom wall of the housing 1 is provided with an air inlet 11, and the front wall of the housing 1 is provided with an air outlet 12. The air outlet duct 2 and the wind wheel 3 are both provided in the housing 1. The wind wheel 3 is provided at one end of the air outlet duct 2 (the rear end of the air outlet duct 2), and the other end of the air outlet duct 2 (the front end of the air outlet duct 2) is connected to the air outlet 12. The air outlet duct 2 includes a first air duct wall 21, and one end of the first air duct wall 21 (the rear end of the first air duct wall 21) has a volute throat surface 211. The other end of the first air duct wall 21 (the front end of the first air duct wall 21) is connected to the upper edge of the air outlet 12.

[0031] In a projection plane perpendicular to the axial direction of the rotor 3, the angle β1 between a first line F1 connecting the tail end K1 of the snail throat surface 211 and the axis O1 of the rotor 3 and the vertically downward direction is, where 50°≤β1≤120°. It is understood that the angle β1 between the first line F1 and the endpoint of the tail end K1 of the snail throat surface 211 and a vertically downward perpendicular line drawn from the axis O1 of the rotor 3 is tangent to the first line F1.

[0032] For example, β1 may be 50°, 70°, 80°, 90°, 100°, 110°, or 120°.

[0033] It should be noted that the axis O1 of the wind wheel 3, i.e. the projection point of the rotation axis of the wind wheel 3 on the projection plane perpendicular to the axial direction of the wind wheel 3. When the wind wheel 3 is cylindrical, the axis O1 of the wind wheel 3, i.e. the center of the wind wheel 3 on the projection plane perpendicular to the axial direction of the wind wheel 3.

[0034] The upper, lower, left and right directions of the shell 1 are consistent with the upper, lower, left and right directions of the air conditioner after installation.

[0035] According to the shell assembly of the embodiment of the present application, the air outlet 12 is arranged on the front wall surface of the shell 1, and the air outlet duct 2 is in communication with the air outlet 12. Compared with the scheme of "air outlet facing the top wall", the problem of air flow obstruction caused by top attachment can be avoided, the energy consumption of the air conditioner is reduced, and the air flow can uniformly flow to a large range of space in the room, so as to expand the air supply range.

[0036] In addition, since the included angle β1 between the first connecting line F1 connecting the tail end K1 of the volute throat surface 211 and the axis O1 of the wind wheel 3 and the vertically downward direction is set in the above range, the arrangement path of the air outlet duct 2 can be optimized to reduce the resistance of the air flow passing through the volute throat surface 211 and the noise of the air flow passing through the volute throat surface 211. Therefore, the shell assembly of the embodiment of the present application can increase the air supply range and improve the air supply effect and efficiency.

[0037] In the related art, at least part of the air outlet 12 of the air conditioner is arranged on the top wall of the shell 1, and correspondingly, the outlet end of the air outlet duct 2 also generally extends upward. As shown in FIG. 1, Figure 2 As shown in FIG. 1, the outline surrounded by the dashed line in the figure is the air outlet duct in the related art. In the above scheme, dust is easy to enter the air outlet duct 2 from the air outlet 12, which further easily causes dust to accumulate at the air outlet position of the air outlet duct 2. On the other hand, when the air conditioner in the above scheme is installed on the top, since the air outlet duct 2 blows air upward, the heat exchange air flow will impact the top wall of the room, which causes the energy consumption of the air conditioner to increase, and the speed of the heat exchange air flow circulating in the room is slow, which affects the air supply effect and efficiency of the air conditioner.

[0038] The shell assembly of the embodiment of the present application extends the air outlet duct 2 in the front-rear direction, so that the air outlet duct 2 can discharge the heat exchanged air flow from the air outlet 12 on the front side of the shell 1 in the direction from back to front. On the one hand, dust can be prevented from entering the air outlet duct 2 from the air outlet 12, and on the other hand, the air volume of the heat exchange air flow flowing on the top can be reduced, so that most of the heat exchange air flow can uniformly flow to a large range of space in the room, which is beneficial to improve the air supply effect and efficiency.

[0039] It can be understood that the air outlet duct 2 in the related art is arranged on the top wall of the shell 1, and the outlet end of the air outlet duct 2 also generally extends upward. Figure 2The profile shown by the dotted line rotates a preset angle clockwise with the axis O1 of the wind wheel 3 (i.e. the center of the cross section of the wind wheel 3) as the rotation center, so as to approximately obtain the air outlet duct 2 of the air conditioner. That is, P1 rotates to P1', and P2 rotates to P2'. Further, the shell assembly of the embodiment of the air conditioner can improve the air supply effect, and is beneficial to reduce the noise during air guiding of the air outlet duct 2, and has a good noise reduction effect by extending P2' obtained by the clockwise rotation to a preset distance (i.e. P2' is extended to P2'').

[0040] As shown in Figure 2 The range of β1' of the air outlet duct 2 in the related art is generally between 20°-50°. The volute throat surface 211 of the air outlet duct 2 in the related art rotates 20°-100° clockwise and forward with the axis O1 of the wind wheel 3, so as to approximately obtain the position of the volute throat surface 211 of the air outlet duct 2 of the air conditioner, thereby adapting to the structure of the front air outlet of the air conditioner. In other words, the difference between β1 and β1' is generally between 20°-100°.

[0041] The inventor of the air conditioner has found through experimental research that when β1 is set to the above size, the position of the volute throat surface 211 of the air outlet duct 2 can be optimized to improve the noise during air outlet of the air conditioner, improve the air supply efficiency, and the air supply range is wider.

[0042] Optionally, as shown in Figure 2 and Figure 3 The air outlet duct 2 comprises a second duct wall 22, one end of the second duct wall 22 has a volute tongue surface 221, the other end of the second duct wall 22 is connected with the lower edge of the air outlet 12, and in the projection plane perpendicular to the axial direction of the wind wheel 3, the second connecting line F2 between the tail end K3 of the volute tongue surface 221 and the axis O1 of the wind wheel 3 and the vertically downward direction has an included angle α1, wherein 45°≤α1≤105°.

[0043] For example, α1 can be 45°, 55°, 65°, 75°, 85°, 95°, or 105°.

[0044] The inventor of the air conditioner has found through experimental research that when α1 is set to the above size, the position of the volute tongue surface 221 of the air outlet duct 2 can be optimized to improve the noise during air outlet of the air conditioner, improve the air supply efficiency, and the air supply range is wider.

[0045] It can be understood that, as Figure 2As shown, the range of a1' of the air outlet air duct 2 in the related art is generally between 105°-140°. The volute tongue face 221 of the air outlet air duct 2 in the related art rotates clockwise forward along the shaft center O1 of the wind wheel 3 to obtain the position of the volute tongue face 221 of the air outlet air duct 2 of the utility model, thereby the structure of the front air outlet of the air conditioner of the utility model can be adapted.

[0046] It should be noted that the tail end K1 of the volute throat face 211, that is, the lower end of the volute throat face 211. The head end K2 of the volute throat face 211, that is, the upper end of the volute throat face 211. Similarly, the tail end K3 of the volute tongue face 221, that is, the lower end of the volute tongue face 221. The head end K4 of the volute tongue face 221, that is, the upper end of the volute tongue face 221.

[0047] For example, the volute tongue face 221, the calibration method of the tail end K3 of the volute tongue face 221 is as follows: in the projection plane perpendicular to the axial direction of the wind wheel 3, the straight line passing through the center of the wind wheel 3 and the tangent point of the lower end of the volute tongue face 221, that is, the end point of the tail end K3 of the volute tongue face 221.

[0048] The calibration method of the head end K4 of the volute tongue face 221 is as follows: in the projection plane perpendicular to the axial direction of the wind wheel 3, the straight line passing through the center of the wind wheel 3 and the tangent point of the upper end of the volute tongue face 221, that is, the end point of the head end K4 of the volute tongue face 221.

[0049] In some embodiments, as shown, Figure 3 As shown, in the projection plane perpendicular to the axial direction of the wind wheel 3, the radius of the wind wheel 3 is R, the tail end K1 of the volute throat face 211 is located below the shaft center O1 of the wind wheel 3, the distance between the tail end K1 of the volute throat face 211 and the shaft center O1 of the wind wheel 3 in the front-rear direction of the shell 1 is L1, and the distance between the tail end K1 of the volute throat face 211 and the shaft center O1 of the wind wheel 3 in the up-down direction of the shell 1 is H1, wherein R≤L1≤R+18mm, and R / 6≤H1≤2R / 3.

[0050] The shell assembly of the embodiment of the utility model sets L1 and H1 to the above-mentioned sizes, compared with the volute throat face 211 of the original air outlet air duct (such as the air outlet air duct 2 of Figure 2 The inventor of the utility model finds through experimental research that when L1 and H1 are set to the above-mentioned sizes, the air outlet path of the volute throat face 211 position of the air outlet air duct 2 can be optimized to improve the noise when the air conditioner blows air and improve the air supply efficiency.

[0051] For example, L1 can be R, R+2mm, R+4mm, R+6mm, R+8mm, R+10mm, R+12mm, R+14mm, R+16mm, R+18mm. For example, H1 can be R / 6, R / 5, R / 4, R / 3, R / 2, 2R / 3.

[0052] Further, in the projection plane orthogonal to the axial direction of the impeller 3, the radius of the impeller 3 is R, the distance between the leading end K2 of the volute throat surface 211 and the axial center O1 of the impeller 3 in the front-rear direction of the casing 1 is L2, and the distance between the leading end K2 of the volute throat surface 211 and the axial center O1 of the impeller 3 in the up-down direction of the casing 1 is H2, wherein R≤L2≤R+10mm and 0≤H2≤R / 3. The inventor of the present application has found through experimental research that when L2 and H2 of the leading end K2 of the volute throat surface 211 are within the above ranges, the air outlet path of the volute throat surface 211 of the air outlet air duct 2 can be optimized to improve the noise of the air conditioner during air outlet and reduce the noise of the airflow passing through the volute throat surface 211, improve the air supply efficiency, and also help reduce the resistance of the airflow passing through the volute throat surface 211.

[0053] For example, L2 can be R, R+2mm, R+4mm, R+6mm, R+8mm, or R+10mm. For example, H2 can be 0, R / 5, R / 4, or R / 3.

[0054] In some embodiments, as shown in FIG. 1, in the projection plane orthogonal to the axial direction of the impeller 3, the radius of the impeller 3 is R, the distance between the trailing end K3 of the volute tongue surface 221 and the axial center O1 of the impeller 3 in the front-rear direction of the casing 1 is L3, and the distance between the trailing end K3 of the volute tongue surface 221 and the axial center O1 of the impeller 3 in the up-down direction of the casing 1 is H3, wherein R≤L3≤R+12mm and 0≤H3≤4R / 5. Figure 3 The casing assembly of the embodiment of the present application sets L3 and H3 to the above sizes, which is lower than the original volute tongue surface 221 of the air outlet air duct (such as the air outlet air duct 2 of FIG. 1).

[0055] The inventor of the present application has found through experimental research that when L3 and H3 are set to the above sizes, the air outlet path of the volute tongue surface 221 of the air outlet air duct 2 can be optimized to improve the noise of the air conditioner during air outlet and improve the air supply efficiency. Figure 2 For example, L3 can be R, R+2mm, R+4mm, R+6mm, R+8mm, R+10mm, or R+12mm. H3 can be 0, R / 5, 2R / 5, 3R / 5, or 4R / 5.

[0056] Optionally, in the projection plane orthogonal to the axial direction of the impeller 3, the trailing end K3 of the volute tongue surface 221 is located above the axial center O1 of the impeller 3, and the distance between the trailing end K3 of the volute tongue surface 221 and the axial center O1 of the impeller 3 in the up-down direction of the casing 1 is H3, wherein 0≤H3≤4R / 5. For example, H3 can be 0, R / 5, 2R / 5, 3R / 5, or 4R / 5.

[0057]

[0058] ​In other examples, the tail end K3 of the volute tongue surface 221 is located below the axis O1 of the impeller 3, and the distance between the tail end K3 of the volute tongue surface 221 and the axis O1 of the impeller 3 in the up-down direction of the shell 1 is H3, where 0≤H3≤3R / 4. For example, H3 can be 0, R / 4, 2R / 4, 3R / 4.

[0059] In other words, in the horizontal plane passing through the axis O1 of the impeller 3, the tail end K3 of the volute tongue surface 221 can float above the horizontal plane by a preset distance (0-4R / 5), or can float below the horizontal plane by a distance (0-3R / 4).

[0060] The inventors of the present application have found through experimental research that when H3 is set to the above size, the air outlet path of the air outlet duct 2 can be optimized to improve the noise of the air conditioner during air outlet and improve the air supply efficiency.

[0061] In some embodiments, as shown in FIG. 1, Figure 4 In some embodiments, as shown in FIG. 1,

[0062] For example, L4 can be 3R / 4, 3R / 4+2mm, 3R / 4+4mm, 3R / 4+6mm, 3R / 4+8mm, 3R / 4+12mm, 3R / 4+14mm, 3R / 4+16mm, 3R / 4+18mm, 3R / 4+20mm. For example, H4 is R / 4, R / 2, 3R / 4.

[0063] The inventors of the present application have found through experimental research that when L4 and H4 of the head end K4 of the volute tongue surface 221 are within the above ranges, the structure of the air outlet duct 2 can be made more reasonable, which is conducive to reducing the resistance of the airflow passing through the volute tongue surface 221 and reducing the noise of the airflow passing through the volute tongue surface 221.

[0064] Optionally, 45mm≤R≤65mm. For example, R can be 45mm, 50mm, 55mm, 65mm. The inventors of the present application have found through experimental research that when the impeller adopts the above radius size, the size of the air conditioner can be reduced on the basis of ensuring that the air conditioner has good air supply efficiency and air supply effect, so that the structure of the whole machine is more lightweight, and the energy consumption is lower.

[0065] In some embodiments, as shown in FIG. 1, Figure 3 and Figure 4As shown, the gap between any one of the volute throat surface 211 and the volute tongue surface 221 and the impeller 3 is W, wherein 1mm≤W≤10mm. W can be 1mm, 3mm, 5mm, 7mm, 8mm, 10mm. In this way, the fan head is improved, and the vibration and noise reduction effect of the air conditioner is improved.

[0066] For example, the volute throat surface 211 is spaced apart from the impeller 3 along the radial direction of the impeller 3 and the gap is W, and in the extension direction from the tail end K1 of the volute throat surface 211 to the head end K2 of the volute throat surface 211 (i.e. from bottom to top in the direction shown in the figure), the gap W between the volute throat surface 211 and the impeller 3 gradually decreases. Figure 2

[0067] For another example, the volute tongue surface 221 is spaced apart from the impeller 3 along the radial direction of the impeller 3 and the gap is W.

[0068] In some embodiments, as shown in Figure 3 and Figure 4 the first air duct wall 21 further comprises a first air guide surface 212 and an extension surface 213, one end of the first air guide surface 212 is connected to the volute throat surface 211, the other end of the first air guide surface 212 is connected to one end of the extension surface 213, the other end of the extension surface 213 is connected to the upper edge of the air outlet 12, and the extension surface 213 extends along the front-rear direction of the shell 1. In the direction from back to front of the shell 1, the distance between the first air guide surface 212 and the impeller 3 gradually increases.

[0069] It can be understood that the first air guide surface 212 is an arc surface, and in the direction from back to front, the distance between the arc surface and the impeller 3 gradually increases and smoothly transitions with the extension surface 213, thereby improving the flow guiding effect of the first air duct wall 21, reducing the resistance of airflow flow, and reducing energy consumption.

[0070] In addition, since the extension surface 213 extends along the front-rear direction of the shell 1, the extension surface 213 can discharge the heat-exchanged airflow from the air outlet 12 on the front side of the shell 1 in the direction from back to front, which is conducive to improving the air supply effect and efficiency.

[0071] In some embodiments, as shown in Figure 3 and Figure 4 the air outlet air duct 2 comprises a second air duct wall 22, the second air duct wall 22 comprises a volute tongue surface 221 and a second air guide surface 222, the volute tongue surface 221 is spaced apart from the impeller 3 along the radial direction of the impeller 3, one end of the second air guide surface 222 is connected to the volute tongue surface 221, and the other end of the second air guide surface 222 is connected to the lower edge of the air outlet 12. The extension surface 213 and the second air guide surface 222 are arranged opposite to each other along the up-down direction of the shell 1, and in the direction from back to front, the second air guide surface 222 gradually extends downward and downward.

[0072] ​Because the second air guide surface 222 extends downwardly and tilted from back to front, a portion of the blown air flow can flow downward, thereby achieving a more uniform temperature between the upper and lower areas of the room. Furthermore, by configuring the second air guide surface 222 in the aforementioned structure, the housing assembly of the present invention can increase the blowing distance while providing a wide-angle blowing effect, thereby ensuring a better air supply performance for the air conditioner.

[0073] like Figure 1 As shown, an air conditioner according to another embodiment of the present invention includes a heat exchanger 4 and a housing assembly. The housing assembly is the housing assembly of the present invention. The heat exchanger 4 is disposed within the housing 1 and below the impeller 3. Specifically, the heat exchanger 4 has a generally V-shaped structure, the impeller 3 is disposed in the upper region of the V-shaped structure of the heat exchanger 4, and the air inlet 11 is arranged opposite the lower wall of the heat exchanger 4 to exchange heat with the airflow entering the housing 1.

[0074] According to the air conditioner of the embodiment of the present invention, by arranging the air outlet 12 on the front wall of the shell 1, and the air outlet duct 2 is connected to the air outlet 12, compared with the solution of "the air outlet 12 is directed toward the top wall", the problem of the air outlet close to the top obstructing the flow of airflow can be avoided, so as to reduce the energy consumption of the air conditioner, and it is beneficial for the airflow to flow evenly toward a larger range of space in the room, so as to expand the air supply range. In addition, since the angle β1 between the tail end K1 of the volute throat surface 211 and the first connecting line F1 of the axis O1 of the wind wheel 3 and the vertical downward direction is set in the above range, the arrangement path of the air outlet duct 2 can be optimized to reduce the resistance of the airflow when it flows through the volute throat surface 211, and reduce the noise when the airflow flows through the volute throat surface 211. Therefore, the shell assembly of the embodiment of the present invention can increase the air supply range and improve the air supply effect and air supply efficiency.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0076] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0077] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact 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.

[0079] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, 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, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples, without contradiction.

[0080] 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. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A housing assembly, characterized in that: include: A housing (1), wherein the bottom wall of the housing (1) is provided with an air inlet (11), and the front wall of the housing (1) is provided with an air outlet (12); An air outlet duct (2) and a wind wheel (3), wherein the air outlet duct (2) and the wind wheel (3) are both arranged in the housing (1), the wind wheel (3) is arranged at one end of the air outlet duct (2), the other end of the air outlet duct (2) is connected to the air outlet (12), the air outlet duct (2) comprises a first air duct wall (21), one end of the first air duct wall (21) has a volute throat surface (211), the other end of the first air duct wall (21) is connected to the upper edge of the air outlet (12), In a projection plane orthogonal to the axial direction of the wind wheel (3), an angle β1 is formed between a first line connecting the tail end of the snail throat surface (211) and the axis of the wind wheel (3) and a vertical downward direction, wherein 50°≤β1≤120°.

2. The housing assembly according to claim 1, wherein: The air outlet duct (2) includes a second air duct wall (22), one end of the second air duct wall (22) has a volute tongue surface (221), the other end of the second air duct wall (22) is connected to the lower edge of the air outlet (12), and in a projection plane orthogonal to the axial direction of the wind wheel (3), the angle between the second connecting line between the tail end of the volute tongue surface (221) and the axis of the wind wheel (3) and the vertical downward direction is α1, wherein 45°≤α1≤105°.

3. The housing assembly according to claim 1, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the radius of the wind wheel (3) is R, the tail end of the snail throat surface (211) is located below the axis of the wind wheel (3), the distance between the tail end of the snail throat surface (211) and the axis of the wind wheel (3) in the front-to-back direction of the housing (1) is L1, and the distance between the tail end of the snail throat surface (211) and the axis of the wind wheel (3) in the upper-lower direction of the housing (1) is H1, wherein R≤L1≤R+18mm, R / 6≤H1≤2R / 3.

4. The housing assembly according to claim 1, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the radius of the wind wheel (3) is R, the distance between the head end of the volute throat surface (211) and the axis of the wind wheel (3) in the front-to-back direction of the housing (1) is L2, and the distance between the head end of the volute throat surface (211) and the axis of the wind wheel (3) in the upper and lower directions of the housing (1) is H2, wherein R≤L2≤R+10mm, 0≤H2≤R / 3.

5. The housing assembly according to claim 2, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the radius of the wind wheel (3) is R, the distance between the tail end of the volute tongue surface (221) and the axis of the wind wheel (3) in the front-to-back direction of the housing (1) is L3, and the distance between the tail end of the volute tongue surface (221) and the axis of the wind wheel (3) in the upper and lower directions of the housing (1) is H3, wherein R≤L3≤R+12mm, 0≤H3≤4R / 5.

6. The housing assembly according to claim 2, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the head end of the volute tongue surface (221) is located above the axis of the wind wheel (3), the distance between the head end of the volute tongue surface (221) and the axis of the wind wheel (3) in the front-to-back direction of the shell (1) is L4, and the distance between the head end of the volute tongue surface (221) and the axis of the wind wheel (3) in the upper and lower directions of the shell (1) is H4, wherein 3R / 4≤L4≤3R / 4+20mm, R / 4≤H4≤3R / 4.

7. The housing assembly according to claim 2, wherein: The gap between the wind wheel (3) and any one of the volute throat surface (211) and the volute tongue surface (221) is W, wherein 1mm≤W≤10mm.

8. The housing assembly according to any one of claims 1 to 7, characterized in that: The first air duct wall (21) further comprises a first air guide surface (212) and an extension surface (213), one end of the first air guide surface (212) being connected to the volute throat surface (211), the other end of the first air guide surface (212) being connected to one end of the extension surface (213), the other end of the extension surface (213) being connected to the upper edge of the air outlet (12), the extension surface (213) extending along the front-to-back direction of the shell (1), and the distance between the first air guide surface (212) and the wind wheel (3) gradually increasing in the direction from the back to the front of the shell (1).

9. The housing assembly according to claim 8, wherein: The air outlet duct (2) includes a second air duct wall (22), the second air duct wall (22) includes a volute tongue surface (221) and a second air guide surface (222), the volute tongue surface (221) is spaced apart from the wind wheel (3) along the radial direction of the wind wheel (3), one end of the second air guide surface (222) is connected to the volute tongue surface (221), and the other end of the second air guide surface (222) is connected to the lower edge of the air outlet (12), the extended surface (213) and the second air guide surface (222) are arranged relative to each other along the upper and lower directions of the shell (1), and in the direction from back to front, the second air guide surface (222) gradually extends downward.

10. An air conditioner, characterized in that: The invention comprises a housing assembly according to any one of claims 1 to 9.

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