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 tongue surface, the other end of the first air duct wall is connected with the lower edge of the air outlet, and the volute tongue surface is spaced from the wind wheel in the radial direction of the wind wheel; in a projection plane orthogonal to the axial direction of the wind wheel, the radius of the wind wheel is R, the distance between the tail end of the volute tongue face and the axis of the wind wheel in the front-back direction of the shell is L1, and L1 is larger than or equal to R and smaller than or equal to R + 12 mm. 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 cooling 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 tongue surface, the other end of the first air duct wall is connected with the lower edge of the air outlet, and the volute tongue surface is spaced apart from the fan wheel along the radial direction of the fan wheel; in the projection plane perpendicular to the axial direction of the fan wheel, the radius of the fan wheel is R, and the distance between the tail end of the volute tongue surface and the axis of the fan wheel in the front-rear direction of the shell is L1, wherein R≤L1≤R+12mm.

[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, so as to reduce the energy consumption of the air conditioner, and it is beneficial to the uniform flow of air to the larger space in the room, so as to expand the air supply range. In addition, by setting the distance L1 between the tail end of the volute tongue surface and the axis of the fan wheel in the front-rear direction of the shell within the above range, the arrangement path of the air outlet air duct can be optimized, so as to reduce the resistance of air flow through the volute tongue surface and the noise of air flow through the volute tongue 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, in the projection plane orthogonal to the axial direction of the wind wheel, the tail end of the volute tongue surface is above the axial center of the wind wheel, and the distance between the tail end of the volute tongue surface and the axial center of the wind wheel in the up-down direction of the shell is H1, where 0≤H1≤4R / 5; or the tail end of the volute tongue surface is below the axial center of the wind wheel, and the distance between the tail end of the volute tongue surface and the axial center of the wind wheel in the up-down direction of the shell is H1, where 0≤H1≤3R / 4.

[0009] In some embodiments, in the projection plane orthogonal to the axial direction of the wind wheel, the distance between the head end of the volute tongue surface and the axial center of the wind wheel in the front-rear direction of the shell is L2, where 3R / 4≤L2≤3R / 4+12mm.

[0010] In some embodiments, in the projection plane orthogonal to the axial direction of the wind wheel, the head end of the volute tongue surface is above the axial center of the wind wheel, and the distance between the head end of the volute tongue surface and the axial center of the wind wheel in the up-down direction of the shell is H2, where R / 4≤H2≤3R / 4.

[0011] In some embodiments, the gap between the volute tongue surface and the wind wheel is W, where 1mm≤W≤8mm.

[0012] In some embodiments, 45mm≤R≤60mm.

[0013] In some embodiments, the first air duct wall comprises a first air guide surface, one end of the first air guide surface is connected to the head end of the volute tongue surface, and the other end of the first air guide surface is connected to the lower edge of the air outlet, and the first air guide surface is arranged to gradually incline downward in the direction from back to front.

[0014] In some embodiments, the air outlet air duct comprises a second air duct wall, the second air duct wall comprises a volute throat surface, a second air guide surface, and an extension surface, the volute throat surface is spaced apart from the wind wheel along the radial direction of the wind wheel, the volute throat surface, the second air guide surface, and the extension surface are arranged in sequence in the direction from back to front, the extension surface is arranged opposite to the second air guide surface in the up-down direction of the shell, and the extension surface is connected to the upper edge of the air outlet.

[0015] In some embodiments, the front end of the extension surface is closer to the front side of the shell than the front end of the first air guide surface.

[0016] According to another embodiment of the air conditioner, the shell assembly is any one of the embodiments of the utility model.

[0017] According to the air conditioner of the embodiment of the present application, the air outlet is arranged on the front wall of the shell, and the air outlet is communicated with the air outlet air duct, compared with the scheme of "air outlet air outlet air duct", the air outlet air duct can avoid the problem of air flow obstruction caused by the air outlet air duct, so as to reduce the energy consumption of the air conditioner, and the air flow can flow uniformly to the larger space in the room, so as to expand the air supply range. In addition, by setting the distance L1 between the tail end of the volute tongue surface and the axis of the wind wheel in the front-rear direction of the shell in the above range, the arrangement path of the air outlet air duct can be optimized, so as to reduce the resistance of the air flow flowing through the volute tongue surface, and reduce the noise of the air flow flowing through the volute tongue surface. Therefore, the air conditioner of the embodiment of the present application can increase the air supply range, improve the air supply effect and air supply efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the air conditioner of the embodiment of the present application.

[0019] Figure 2 is a sectional view of part of the air conditioner of the embodiment of the present application.

[0020] Figure 3 is a partial sectional view of the shell assembly of the embodiment of the present application.

[0021] Figure 4 is a partial sectional view of the air outlet air duct and the wind wheel in the related art.

[0022] REFERENCE NUMERALS:

[0023] 1, shell; 11, air inlet; 12, air outlet;

[0024] 2, air outlet air duct; 21, first air duct wall; 211, volute tongue surface; 212, first air guide surface; 22, second air duct wall; 221, volute throat surface; 222, second air guide surface; 223, extension surface;

[0025] 3, wind wheel;

[0026] 4, heat exchanger;

[0027] O1, axis; K1, tail end of volute tongue surface; K2, head end of volute tongue surface. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] The shell assembly and the air conditioner with the same of the embodiment of the present application will be described below with reference to the drawings. Figures 1 to 4 The shell assembly and the air conditioner with the same of the embodiment of the present application will be described below with reference to the drawings.

[0030] As Figures 1 to 3 shown, the shell assembly of the embodiment of the utility model includes: shell 1, air outlet air duct 2 and wind wheel 3. The bottom wall surface of shell 1 is equipped with air inlet 11, and the front wall surface of shell 1 is equipped with air outlet 12. Air outlet air duct 2 and wind wheel 3 are all arranged in shell 1, and wind wheel 3 is arranged at one end (rear end of air outlet air duct 2) of air outlet air duct 2, and the other end (front end of air outlet air duct 2) of air outlet air duct 2 is communicated with air outlet 12, and air outlet air duct 2 includes first air duct wall 21, one end of first air duct wall 21 has volute tongue surface 211, the other end of first air duct wall 21 is connected with the lower edge of air outlet 12, and volute tongue surface 211 is spaced apart from wind wheel 3 along the radial direction of wind wheel 3.

[0031] In the projection plane perpendicular to the axial direction of wind wheel 3, the radius of wind wheel 3 is R, and the distance between tail end K1 of volute tongue surface 211 and the axis O1 of wind wheel 3 in the front-rear direction of shell 1 is L1, wherein R≤L1≤R+12mm.

[0032] It should be noted that the radius of wind wheel 3, i.e. the rotational radius of wind wheel 3. The axis O1 of wind wheel 3, i.e. the rotational axis of wind wheel 3 in the projection plane perpendicular to the axial direction of wind wheel 3. When the cylindrical shape of wind wheel 3, the axis O1 of wind wheel 3 is the center of the projection plane perpendicular to the axial direction of wind wheel 3.

[0033] Wherein, the up-down, left-right, front-rear direction of shell 1 is consistent with the up-down, left-right, front-rear direction of the air conditioner after installation.

[0034] According to the shell assembly of the embodiment of the utility model, by arranging air outlet 12 on the front wall surface of shell 1, and air outlet air duct 2 is communicated with air outlet 12, compared with the scheme of "air outlet facing top wall air outlet", the problem of air flow obstruction caused by top air outlet can be avoided, so as to reduce the energy consumption of air conditioner, and it is beneficial to the uniform flow of air flow to the larger space in the room, so as to expand the air supply range.

[0035] In addition, by setting the distance L1 between the tail end K1 of volute tongue surface 211 and the axis O1 of wind wheel 3 in the front-rear direction of shell 1 in the above range, the arrangement path of air outlet air duct 2 can be optimized, so as to reduce the resistance of air flow passing through volute tongue surface 211, and reduce the noise of air flow passing through volute tongue surface 211. Therefore, the shell assembly of the embodiment of the utility model can increase the air supply range, improve the air supply effect and air supply efficiency.

[0036] In the related art, as Figure 4As shown, at least part of the air outlet of the air conditioner is arranged on the top wall of the shell, and correspondingly, the outlet end of the air outlet air duct also generally extends upward. In the above scheme, dust is easy to enter the air outlet air duct from the air outlet, and further, the air outlet position of the air outlet air duct is easy to accumulate dust. On the other hand, when the air conditioner in the above scheme is installed on the ceiling, since the air outlet air duct blows air upward, the heat exchange airflow will impact the top wall of the room, resulting in an increase in energy consumption of the air conditioner, and the speed of circulation of the heat exchange airflow in the room is slow, affecting the air supply effect and efficiency of the air conditioner.

[0037] The shell assembly of the embodiment of the present application extends the air outlet air duct 2 in the front-rear direction, so that the air outlet air duct 2 can discharge the heat exchanged airflow from the air outlet 12 on the front side of the shell 1 in the direction from the rear to the front. On the one hand, it can prevent dust from entering the air outlet air duct 2 from the air outlet 12, and on the other hand, it can reduce the air volume of the heat exchange airflow flowing on the ceiling, so that most of the heat exchange airflow can flow uniformly to a large range of space in the room, which is beneficial to improve the air supply effect and efficiency.

[0038] For example, L1 can be R, R+2mm, R+4mm, R+6mm, R+8mm, R+10mm, R+12mm.

[0039] The shell assembly of the embodiment of the present application sets L1 to the above size, which is lower than the volute tongue surface 211 of the original air outlet air duct (such as the air outlet air duct 2 of the air conditioner in the prior art). Figure 4 Specifically, the value range of L1' of the air outlet air duct 2 in the related art is between R / 2 and R, while the value range of L1 of the embodiment of the present application is between R and R+12mm. The inventors of the present application have found through experimental research that when L1 is set to the above size, the air outlet path of the air outlet air duct 2 can be optimized to improve the noise during air outlet of the air conditioner and improve the air supply efficiency.

[0040] In the examples of the present application, as shown in Figure 2 and Figure 3 the tail end K1 of the volute tongue surface 211, that is, the lower end of the volute tongue surface 211. The head end K2 of the volute tongue surface 211, that is, the upper end of the volute tongue surface 211.

[0041] The calibration method of the tail end K1 of the volute tongue surface 211 is as follows: in the projection plane perpendicular to the axial direction of the fan wheel 3, the straight line passing through the center of the fan wheel 3 and the tangent point of the lower end of the volute tongue surface 211, that is, the end point of the tail end K1 of the volute tongue surface 211.

[0042] The calibration method of the head end K2 of the volute tongue surface 211 is as follows: in the projection plane perpendicular to the axial direction of the fan wheel 3, the straight line passing through the center of the fan wheel 3 and the tangent point of the upper end of the volute tongue surface 211, that is, the end point of the head end K2 of the volute tongue surface 211.

[0043] Optionally, in a projection plane orthogonal to the axial direction of the wind rotor 3, the tail end K1 of the volute tongue surface 211 is located above the axis O1 of the wind rotor 3, and the distance between the tail end K1 of the volute tongue surface 211 and the axis O1 of the wind rotor 3 in the vertical direction of the housing 1 is H1, where 0≤H1≤4R / 5. For example, H1 can be 0, R / 5, 2R / 5, 3R / 5, or 4R / 5.

[0044] In other examples, the tail end K1 of the volute tongue surface 211 is located below the axis O1 of the wind rotor 3. The distance between the tail end K1 of the volute tongue surface 211 and the axis O1 of the wind rotor 3 in the vertical direction of the housing 1 is H1, where 0≤H1≤3R / 4. For example, H1 can be 0, R / 4, 2R / 4, or 3R / 4.

[0045] In other words, if Figure 2 As shown, in the horizontal plane passing through the axis O1 of the wind wheel 3, the tail end K1 of the volute tongue surface 211 can float above the horizontal plane by a preset distance (0 to 4R / 5) or below the horizontal plane by a distance (0 to 3R / 4).

[0046] The inventor of the present invention has found through experimental research that when H1 is set to the above-mentioned size, the air outlet path of the air outlet duct 2 can be optimized to reduce the noise of the air conditioner when it is discharging air and improve the air supply efficiency.

[0047] It can be understood that a coordinate system is established with the axis O1 of the wind wheel 3 as the origin, the vertically upward extending direction as the positive direction of the Y axis, and the horizontally forward extending direction as the positive direction of the X axis.

[0048] like Figure 2 As shown, the coordinate point (L1, H1) of the tail end K1 of the volute tongue surface 211 of the embodiment of the present invention has a value range of: (R~R+12mm, -3R / 4~4R / 5). Figure 4 As shown, in the solution of the air outlet duct (before optimization) in the related art, the coordinate point (L1', H1') of the tail end K1 of the volute tongue surface 211 is: (R / 2 to R, R / 2 to -3R / 4).

[0049] The inventors of the present utility model discovered through experimental research that when the coordinate point (L1, H1) takes a value within the range of (R~R+12mm, -3R / 4~4R / 5), the layout path of the air outlet duct 2 can be optimized to reduce the resistance of the airflow when passing through the volute tongue surface 211, and reduce the noise when the airflow flows through the volute tongue surface 211, and the air supply efficiency can be significantly improved.

[0050] In some embodiments, within a projection plane perpendicular to the axial direction of the rotor 3, the distance between the leading end K2 of the volute tongue surface 211 and the axis O1 of the rotor 3 in the front-to-rear direction of the housing 1 is L2, where 3R / 4 ≤ L2 ≤ 3R / 4 + 12 mm. For example, L2 can be 3R / 4, 3R / 4 + 2 mm, 3R / 4 + 4 mm, 3R / 4 + 6 mm, 3R / 4 + 8 mm, or 3R / 4 + 12 mm.

[0051] The inventors of the present utility model have discovered through experimental research that when the distance L2 between the head end K2 of the volute surface 211 and the axis O1 of the wind wheel 3 in the front-to-back direction of the shell 1 is within the above-mentioned range, the air outlet path of the air outlet duct 2 can be optimized to improve the noise level of the air conditioner during air outlet and enhance the air supply efficiency.

[0052] Alternatively, as Figure 2 As shown, in the projection plane orthogonal to the axial direction of the wind wheel 3, the head end K2 of the volute tongue surface 211 is located above the axis O1 of the wind wheel 3, and the distance between the head end K2 of the volute tongue surface 211 and the axis O1 of the wind wheel 3 in the vertical direction of the housing 1 is H2, where R / 4≤H2≤3R / 4. For example, H2 is R / 4, R / 2, or 3R / 4. The inventors of the present utility model have found through experimental research that when the distance H2 between the head end K2 of the volute tongue surface 211 and the axis O1 of the wind wheel 3 in the vertical direction of the housing 1 is within the above range, the structure of the air duct 2 can be made more reasonable, which is conducive to reducing the resistance of the airflow when passing through the volute tongue surface 211, and reducing the noise when the airflow passes through the volute tongue surface 211.

[0053] like Figure 2 As shown in the example of the present invention, the coordinate point (L2, H2) of the head end K2 of the volute tongue surface 211 is: (3R / 4~3R / 4+12mm, R / 4~3R / 4). Figure 4 As shown, in the solution of the air outlet duct (before optimization) in the related art, the coordinate point (L2', H2') of the head end K2 of the volute tongue surface 211 is: (-4R / 5 to -R / 2, R to R+12).

[0054] The inventors of the present utility model discovered through experimental research that when the coordinate point (L2, H2) of the head end K2 of the volute tongue surface 211 is within the range of (3R / 4~3R / 4+12mm, R / 4~3R / 4), the layout path of the air outlet duct 2 can be optimized to reduce the resistance of the airflow when passing through the volute tongue surface 211, and reduce the noise when the airflow flows through the volute tongue surface 211, and the air supply efficiency can be significantly improved.

[0055] Alternatively, as Figure 3As shown, 45mm≤R≤60mm. For example, R can be 45mm, 50mm, 55mm, 60mm. 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.

[0056] In some embodiments, as shown in Figure 3 As shown, the clearance between the volute tongue surface 211 and the wind wheel 3 is W, wherein 1mm≤W≤8mm. For example, W can be 1mm, 3mm, 5mm, 7mm, 8mm. In this way, the fan pressure head is improved, and the vibration and noise reduction effect of the air conditioner is improved.

[0057] In some embodiments, as shown in Figure 2 and Figure 3 As shown, the first air duct wall 21 includes a first air guide surface 212, one end of the first air guide surface 212 is connected to the first end K2 of the volute tongue surface 211, and the other end of the first air guide surface 212 is connected to the lower edge of the air outlet 12. In the direction from back to front, the first air guide surface 212 is gradually arranged downwardly inclined. Since the first air guide surface 212 extends downwardly inclined in the direction from back to front, a part of the blown airflow can flow downwardly, so that the temperature of the upper and lower areas in the room is more uniform. And the shell assembly of the embodiment of the present application can increase the blowing distance on the basis of blowing at a large angle, so as to ensure that the air conditioner has a better air supply effect.

[0058] Optionally, as shown in Figure 2 and Figure 3 As shown, the air outlet air duct 2 includes a second air duct wall 22, the second air duct wall 22 includes a volute throat surface 221, a second air guide surface 222 and an extension surface 223, the volute throat surface 221 is spaced apart from the wind wheel 3 along the radial direction of the wind wheel 3, the volute throat surface 221, the second air guide surface 222 and the extension surface 223 are arranged in sequence in the direction from back to front, the extension surface 223 and the second air guide surface 222 are arranged opposite to each other in the up-down direction of the shell 1, and the extension surface 223 is connected to the upper edge of the air outlet 12.

[0059] It can be understood that the second air guide surface 222 is an arc surface, and in the direction from back to front, the arc surface gradually increases the distance from the wind wheel 3 and smoothly transitions with the extension surface 223, thereby improving the flow guiding effect of the second air duct wall 22, reducing the resistance of airflow flow, and reducing energy consumption.

[0060] In addition, since the extension surface 223 extends along the front-rear direction of the shell 1, the extension surface 223 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 air supply efficiency.

[0061] Alternatively, as Figure 2 and Figure 3 As shown, the front end of the extended surface 223 is closer to the front side of the housing 1 than the front end of the first wind guiding surface 212 .

[0062] In other words, the front end of the extended surface 223 is located in front of the front end of the first air guide surface 212, thereby increasing the air guide path, thereby making the air blowing distance of the air conditioner longer, and facilitating the cold air or hot air to flow evenly and slowly toward a larger range, so as to achieve the purpose of rapid cooling (warming).

[0063] In the example of the present application, in order to adapt to the structure of the outlet end of the air outlet duct 2, the upper edge of the air outlet 12 is located in front of the lower edge of the air outlet 12. Therefore, when the air conditioner is in operation, the airflow after heat exchange flows along the air outlet duct 2 and is discharged through the air outlet 12, which can reduce the resistance of the air flow and improve the air supply effect.

[0064] 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.

[0065] 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 is directed toward the top wall", the problem of the air flow being blocked by the air outlet close to the top can be avoided, thereby reducing the energy consumption of the air conditioner, and facilitating the air flow to flow evenly toward a larger range of space in the room, thereby expanding the air supply range. In addition, by setting the distance L1 between the tail end K1 of the volute tongue surface 211 and the axis O1 of the wind wheel 3 in the front-to-back direction of the shell 1 within the above-mentioned range, the arrangement path of the air outlet duct 2 can be optimized to reduce the resistance of the air flow when passing through the volute tongue surface 211, and reduce the noise when the air flow passes through the volute tongue surface 211. Therefore, the air conditioner of the embodiment of the present invention can increase the air supply range and improve the air supply effect and air supply efficiency.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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: 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), and the other end of the air outlet duct (2) is communicated with 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 tongue surface (211), the other end of the first air duct wall (21) is connected to the lower edge of the air outlet (12), and the volute tongue surface (211) is spaced apart from the wind wheel (3) along the radial direction of the wind wheel (3), In a projection plane orthogonal to the axial direction of the wind wheel (3), the radius of the wind wheel (3) is R, and the distance between the tail end of the volute tongue surface (211) and the axis of the wind wheel (3) in the front-to-back direction of the housing (1) is L1, wherein R≤L1≤R+12mm.

2. The housing assembly according to claim 1, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the tail end of the volute tongue surface (211) is located above the axis of the wind wheel (3), and the distance between the tail end of the volute tongue surface (211) and the axis of the wind wheel (3) in the vertical direction of the housing (1) is H1, wherein 0≤H1≤4R / 5; Alternatively, the tail end of the volute tongue surface (211) is located below the axis of the wind wheel (3), and the distance between the tail end of the volute tongue surface (211) and the axis of the wind wheel (3) in the vertical direction of the shell (1) is H1, where 0≤H1≤3R / 4.

3. The housing assembly according to claim 1, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the distance between the head end of the volute tongue surface (211) and the axis of the wind wheel (3) in the front-to-back direction of the shell (1) is L2, wherein 3R / 4≤L2≤3R / 4+12mm.

4. The housing assembly according to claim 1, wherein: In a projection plane orthogonal to the axial direction of the wind wheel (3), the head end of the volute tongue surface (211) is located above the axis of the wind wheel (3), and the distance between the head end of the volute tongue surface (211) and the axis of the wind wheel (3) in the vertical direction of the shell (1) is H2, wherein R / 4≤H2≤3R / 4.

5. The housing assembly according to claim 1, wherein: The gap between the volute tongue surface (211) and the wind wheel (3) is W, wherein 1mm≤W≤8mm.

6. The housing assembly according to claim 1, wherein: 45mm≤R≤60mm.

7. The housing assembly according to any one of claims 1 to 6, characterized in that: The first air duct wall (21) comprises a first air guiding surface (212), one end of the first air guiding surface (212) is connected to the head end of the volute tongue surface (211), and the other end of the first air guiding surface (212) is connected to the lower edge of the air outlet (12), and in the direction from back to front, the first air guiding surface (212) is arranged to be gradually tilted downward.

8. The housing assembly according to claim 7, wherein: The air outlet duct (2) includes a second air duct wall (22), the second air duct wall (22) includes a snail throat surface (221), a second air guide surface (222) and an extension surface (223), the snail throat surface (221) is spaced apart from the wind wheel (3) along the radial direction of the wind wheel (3), the snail throat surface (221), the second air guide surface (222) and the extension surface (223) are arranged in sequence from back to front, the extension surface (223) and the second air guide surface (222) are arranged opposite to each other along the upper and lower directions of the shell (1), and the extension surface (223) is adjacent to the upper edge of the air outlet (12).

9. The housing assembly according to claim 8, wherein: The front end of the extended surface (223) is closer to the front side of the housing (1) than the front end of the first wind guide surface (212).

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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