Refrigerator

Abstract

The utility model discloses a refrigerator, and belongs to the technical field of household appliances. The refrigerator comprises a supporting bottom plate, a refrigerator body, a device to be cooled and a cooling fan. A plurality of first air inlets are formed in a bottom plate body in a supporting bottom plate, a plurality of second air inlets are formed in a convex shell, and the opening faces of the second air inlets intersect with the opening faces of the first air inlets. Thus, after the refrigerator is placed on the ground, the first air inlets can face the ground, and the opening faces of the second air inlets can intersect with the ground, that is, air inlet channels which are formed by the multiple first air inlets and the multiple second air inlets and are in different directions are formed in the supporting bottom plate. Thus, under the action of the cooling fan, more external cold airflow near the air inlets is promoted to enter the compressor cabin in the refrigerator from the first air inlets and the second air inlets to cool the device to be cooled, the cooling efficiency of the device to be cooled is effectively improved, and the service life of the device to be cooled is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0002] As a temperature regulating device, refrigerators are used to store items that need to be kept at low temperatures when the indoor and outdoor temperatures are high. As important components in refrigerators, such as compressors and condensers, their heat dissipation efficiency is crucial to the performance of refrigerators.

[0003] At present, some air inlets and air outlets are usually opened on the bottom plate of the refrigerator to form an air duct to dissipate heat from components such as the compressor and the condenser.

[0004] However, the heat dissipation efficiency of current heat dissipation methods is low. Utility Model Content

[0005] The embodiment of the present application provides a refrigerator. It can solve the problem of low heat dissipation efficiency of components such as compressors and condensers in refrigerators in the prior art. The technical solution is as follows:

[0006] In one aspect, a refrigerator is provided, comprising:

[0007] Support the base plate, box, components to be cooled and cooling fans;

[0008] The supporting bottom plate comprises: a bottom plate body connected to the bottom of the box body, and a convex shell fixedly connected to the bottom plate body, the convex shell protrudes in a direction away from the box body relative to the bottom plate body, the bottom plate body has a plurality of first air inlets, and the side wall of the convex shell has a plurality of second air inlets, and the opening surface of the second air inlet intersects with the opening surface of the first air inlet;

[0009] The device to be cooled and the cooling fan are both mounted on the supporting base plate.

[0010] Optionally, the convex shell includes: a packaging plate arranged opposite to the bottom of the box body, and an annular side plate fixedly connected to the edge of the packaging plate, and a side of the side plate facing away from the packaging plate is fixedly connected to the bottom plate body;

[0011] The annular surface where the side plate is located intersects with the plane where the packaging plate is located, and intersects with the plane where the bottom plate body is located; and the plurality of second air inlets are located on the side plate.

[0012] Optionally, the second air inlet is strip-shaped, and a length extension direction of the second air inlet is parallel to the plane where the bottom plate body is located.

[0013] Optionally, the first air inlet is in a strip shape, and a length extension direction of at least a portion of the first air inlet intersects with a length extension direction of at least a portion of the second air inlet.

[0014] Optionally, the packaging plate has a plurality of third air inlets, and opening surfaces of the third air inlets are parallel to the opening surfaces of the first air inlets.

[0015] Optionally, the packaging plate, the side plate and the bottom plate body are an integrally formed sheet metal bending structure.

[0016] Optionally, the base plate body further has a plurality of first air outlets, and the plurality of first air outlets and the plurality of first air inlets are respectively located on two sides of the base plate body.

[0017] Optionally, the refrigerator further comprises: a wind shield strip fixedly connected to the bottom plate body, wherein at least a portion of the wind shield strip is located between the plurality of first air outlets and the plurality of first air inlets.

[0018] Optionally, the refrigerator also includes: a rear cover plate fixedly connected to the supporting base plate, the rear cover plate fixedly connected to the side of the box body, the rear cover plate having a plurality of fourth air inlets and a plurality of second air outlets, the plurality of fourth air inlets and the plurality of second air outlets being respectively located on both sides of the rear cover plate.

[0019] Optionally, the device to be cooled includes: a condenser and a compressor, the cooling fan is located between the condenser and the compressor, and the air inlet surface of the cooling fan faces the condenser, and the air outlet surface of the cooling fan faces the compressor.

[0020] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0021] A refrigerator may include: a supporting base plate, a box body, a device to be cooled and a cooling fan. A plurality of first air inlets are arranged on the base plate body in the supporting base plate of the refrigerator, a plurality of second air inlets are arranged on the convex shell, and the opening surface of the second air inlet intersects with the opening surface of the first air inlet. In this way, after the refrigerator is placed on the ground, the first air inlet can be arranged toward the ground, and the opening surface of the second air inlet can intersect with the ground, that is, air inlet channels in different directions composed of a plurality of first air inlets and a plurality of second air inlets are formed on the supporting base plate. In this way, under the action of the cooling fan, more external cold air flows near the air inlet are prompted to enter the compressor cabin in the refrigerator from the plurality of first air inlets and the plurality of second air inlets to cool the device to be cooled, which effectively improves the heat dissipation efficiency of the device to be cooled, ensures the service life of the device to be cooled, ensures the heat dissipation efficiency of the refrigerator and reduces the energy consumption of the refrigerator as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of an exploded structure of a refrigerator provided in an embodiment of the present application;

[0024] Figure 2 It is a partial structural schematic diagram of a refrigerator provided in an embodiment of the present application;

[0025] Figure 3 is a partial structural schematic diagram of another refrigerator provided in an embodiment of the present application;

[0026] Figure 4 This is a bottom view of a refrigerator provided by an embodiment of the present application;

[0027] Figure 5 This is a partial structural schematic diagram of another refrigerator provided in an embodiment of the present application.

[0028] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of an exploded structure of a refrigerator provided in an embodiment of the present application, Figure 2 Refrigerator 000 may include: a supporting bottom plate 100, a box body 200, a device to be cooled 300 and a cooling fan 400.

[0031] The support bottom plate 100 in the refrigerator 000 may include: a bottom plate body 101 connected to the bottom of the box body 200, and a convex shell 102 fixedly connected to the bottom plate body 101, and the convex shell 102 may protrude relative to the bottom plate body 101 in a direction away from the box body 200. The bottom plate body 101 in the support bottom plate 100 may have a plurality of first air inlets a1, and the side wall of the convex shell 102 in the support bottom plate 100 may have a plurality of second air inlets b1, and the opening surface of the second air inlet b1 may intersect with the opening surface of the first air inlet a1. For example, the opening surface of the second air inlet b1 provided on the convex shell 102 may be arranged perpendicular to the opening surface of the first air inlet a1 provided on the bottom plate body 101.

[0032] The components 300 to be cooled and the cooling fan 400 in the refrigerator 000 may be mounted on the support base 100 .

[0033] In the embodiment of the present application, a plurality of first air inlets a1 are arranged on the bottom plate body 101 in the supporting bottom plate 100 of the refrigerator 000, and a plurality of second air inlets b1 are arranged on the convex shell 102, and the opening surface of the second air inlet b1 intersects with the opening surface of the first air inlet a1. In this way, after the refrigerator 000 is placed on the supporting surface (for example, the ground), the first air inlet a1 can be arranged toward the ground, and the opening surface of the second air inlet b1 can intersect with the ground, that is, air inlet channels in different directions composed of a plurality of first air inlets a1 and a plurality of second air inlets b1 are formed on the supporting bottom plate 100. In this way, under the action of the heat dissipation fan 400, more external cold air flows near the air inlet are prompted to enter the compressor cabin in the refrigerator 000 from the plurality of first air inlets a1 and the plurality of second air inlets b1 to dissipate heat for the device 300 to be dissipated, which effectively improves the heat dissipation efficiency of the device 300 to be dissipated, ensures the service life of the device to be dissipated, and ensures the heat dissipation efficiency of the refrigerator and reduces the energy consumption of the refrigerator as a whole.

[0034] In summary, the embodiment of the present application provides a refrigerator, which may include: a supporting base plate, a box body, a device to be cooled and a cooling fan. A plurality of first air inlets are arranged on the base plate body in the supporting base plate of the refrigerator, and a plurality of second air inlets are arranged on the convex shell, and the opening surface of the second air inlet intersects with the opening surface of the first air inlet. In this way, after the refrigerator is placed on the ground, the first air inlet can be arranged toward the ground, and the opening surface of the second air inlet can intersect with the ground, that is, air inlet channels in different directions composed of a plurality of first air inlets and a plurality of second air inlets are formed on the supporting base plate. In this way, under the action of the cooling fan, more external cold air flows near the air inlet are prompted to enter the compressor cabin in the refrigerator from the plurality of first air inlets and the plurality of second air inlets to cool the device to be cooled, which effectively improves the heat dissipation efficiency of the device to be cooled, ensures the service life of the device to be cooled, and ensures the heat dissipation efficiency of the refrigerator and reduces the energy consumption of the refrigerator as a whole.

[0035] Optional, please refer to Figure 3 , Figure 3 It is a partial structural schematic diagram of another refrigerator provided by an embodiment of the present application. The convex shell 102 in the supporting bottom plate 100 may include: a packaging plate 102a arranged opposite to the bottom of the box body 200, and an annular side plate 102b fixedly connected to the edge of the packaging plate 102a, and the side of the side plate 102b facing away from the packaging plate 102a may be fixedly connected to the bottom plate body 101. Among them, the annular surface where the annular side plate 102b is located may intersect with the plane where the packaging plate 102a is located, and intersect with the plane where the bottom plate body 101 is located. The multiple second air inlets b1 in the convex shell 102 may be located on the side plate 102b. In this case, a packaging plate 102a arranged opposite to the bottom of the box body 200 and an annular side plate 102b fixedly connected to the edge of the packaging plate 102a are provided in the convex shell 102, and the annular surface (i.e., the height direction of the annular side plate) where the side plate 102b is located intersects with the plane of the packaging plate 102a and the plane where the bottom plate body 101 is located. In this way, after the multiple second air inlets b1 are provided on the side plate 102b, the cooling fan 400 has a high efficiency in sucking in the external cold air flow through the multiple second air inlets b1, thereby ensuring a good cooling efficiency for the device 300 to be cooled.

[0036] In the embodiments of the present application, Figure 3As shown, the second air inlet b1 located on the side plate 102b can be strip-shaped, that is, the second air inlet b1 can be a strip-shaped second air inlet, and the length extension direction of the second air inlet b1 can be parallel to the plane where the bottom plate body 101 is located. In this case, by setting the second air inlet b1 in a strip shape, the shape of the strip-shaped second air inlet b1 can be adapted to the annular side plate 102, so that the length of the second air inlet b1 can be increased, thereby effectively increasing the air flow through the second air inlet b1. It should be noted that the length of the second air inlet b1 can be set according to actual needs, and no specific limitation is made here.

[0037] In this application, if Figure 3 As shown, the first air inlet a1 located on the bottom plate body 101 may be strip-shaped, and the length extension direction of at least a portion of the first air inlet a1 may intersect with the length extension direction of at least a portion of the second air inlet b1.

[0038] Optional, such as Figure 3 As shown, the packaging plate 102a in the convex shell 102 may have a plurality of third air inlets b2, and the opening surface of the third air inlet b2 may be parallel to the opening surface of the first air inlet a1. In this case, by arranging a plurality of third air inlets b2 on the packaging plate 102a, and the opening surface of the third air inlet b2 is parallel to the opening surface of the first air inlet a1, the third air inlet b2 is added on the basis of the first air inlet a1 and the second air inlet b1, thereby further increasing the external cold air flow entering the compressor cabin, further effectively improving the heat dissipation efficiency of the device 300 to be dissipated, ensuring the service life of the device to be dissipated, and ensuring the heat dissipation efficiency of the refrigerator and reducing the energy consumption of the entire refrigerator. Here, air inlet channels in different directions composed of a plurality of first air inlets a1, a plurality of second air inlets b1 and a plurality of third air inlets b2 can be formed on the supporting base plate 100. In the present application, the arrangement direction of the plurality of first air inlets a1 and the plurality of second air inlets b1 may be parallel to the arrangement direction of the plurality of second air inlets b1 and the plurality of third air inlets b2.

[0039] In the embodiment of the present application, the packaging plate 102a, the side plate 102b and the bottom plate body 101 can be an integrally formed sheet metal bending structure, that is, the support bottom plate 100 can be a sheet metal bending structure. In this case, since the support bottom plate 100 can be a sheet metal bending structure, the structural strength of the support bottom plate 100 is effectively increased, so that the support bottom plate 100 can stably support the device 300 to be cooled. Here, the convex shell and the bottom plate body can be formed at one time by forging or stamping.

[0040] Optional, such as Figure 3As shown, the bottom plate body 101 in the supporting bottom plate 100 may also have a plurality of first air outlets a2, and the plurality of first air outlets a2 and the plurality of first air inlets a1 may be respectively located on both sides of the bottom plate body 101. In this case, the heat dissipation fan 400 may be configured to: cause the ambient air around the plurality of air inlets to enter the compressor cabin from the plurality of air inlets, and pass through the devices 300 to be cooled in sequence, and then flow from the plurality of first air outlets a2 to the external environment to cool the devices 300 to be cooled. It should be noted that the box body 200, the supporting bottom plate 100 and the rear cover plate in the refrigerator 000 may enclose a compressor cabin for installing devices with heat dissipation.

[0041] In the examples of this application, please refer to Figure 4 , Figure 4 It is a bottom top view of a refrigerator provided by an embodiment of the present application. The refrigerator 000 may also include: a windshield strip 500 fixedly connected to the bottom plate body 101, and at least part of the windshield strip 500 may be located between the plurality of first air outlets a2 and the plurality of first air inlets a1. In this case, by arranging the windshield strip 500 on the side of the bottom plate body 101 away from the box body 200, when the refrigerator 000 is placed on the ground, the space between the supporting bottom plate 100 and the ground is transversely divided to allow the external ambient air to enter the compressor cabin through the plurality of air inlets located on one side of the windshield strip 500 under the action of the heat dissipation fan 400, and flow through the device 300 to be cooled in turn, and finally flow out from the plurality of air outlets located on the other side of the windshield strip 500. In this way, the first air outlet a2 and the first air inlet a1 located on the supporting bottom plate 100 are isolated, ensuring that the cold air flow entering from the first air inlet a1 and the heat dissipation air discharged from the first air outlet a2 will not flow in series, further ensuring the heat dissipation efficiency.

[0042] Optional, please refer to Figure 5 , Figure 5It is a partial structural diagram of another refrigerator provided by an embodiment of the present application. The refrigerator 000 may also include: a rear cover plate 600 fixedly connected to the support bottom plate 100, the rear cover plate 600 may be fixedly connected to the side of the box body 200, the rear cover plate 600 may have a plurality of fourth air inlets c1 and a plurality of second air outlets c2, the plurality of fourth air inlets c1 and the plurality of second air outlets c2 may be respectively located on both sides of the rear cover plate 600. In the present application, the plurality of fourth air inlets c1 may be arranged adjacent to the plurality of first air inlets a1, and the plurality of second air outlets c2 may be arranged adjacent to the plurality of first air outlets a2. In this case, by arranging a plurality of fourth air inlets c1 and a plurality of second air outlets c2 on the rear cover plate 600 located on the rear side of the refrigerator 000, during the operation of the cooling fan 400, the cold air flow in the external environment can be sucked in from the plurality of fourth air inlets c1 located on the rear cover plate 600, and then after flowing through the device 300 to be cooled, it can be discharged from the plurality of second air outlets c2 located on the rear cover plate 600, thereby further ensuring the heat dissipation reliability of the refrigerator 000.

[0043] In the embodiments of the present application, Figure 5 As shown, the device 300 to be cooled in the refrigerator 000 may include: a condenser 301 and a compressor 302, and a cooling fan 400 may be located between the condenser 301 and the compressor 302, and the air inlet surface of the cooling fan 400 may face the condenser 301, and the air outlet surface of the cooling fan 400 may face the compressor 302. In this case, the cooling fan 400 is configured to cause the ambient air around the multiple air inlets to enter the compressor cabin from the multiple air inlets, and pass through the condenser 301 and the compressor 302 in sequence, and then flow to the external environment from the multiple air outlets to cool the compressor 302 and the condenser 301. In the vapor compression refrigeration cycle, the surface temperature of the condenser 301 is generally lower than the surface temperature of the compressor 302, so in the above process, the external air is first cooled by the condenser 301 and then cooled by the compressor 302.

[0044] Optional, such as Figure 5 As shown, the refrigerator 000 may also include: a plurality of supporting casters 700, which may be connected to the supporting base plate 100. After the refrigerator 000 is placed on a supporting surface (e.g., the ground) by means of the plurality of supporting casters 700, a certain space may be formed between the supporting base plate 100 and the supporting surface to facilitate air flow.

[0045] In summary, the embodiment of the present application provides a refrigerator, which may include: a supporting base plate, a box body, a device to be cooled and a cooling fan. A plurality of first air inlets are arranged on the base plate body in the supporting base plate of the refrigerator, and a plurality of second air inlets are arranged on the convex shell, and the opening surface of the second air inlet intersects with the opening surface of the first air inlet. In this way, after the refrigerator is placed on the ground, the first air inlet can be arranged toward the ground, and the opening surface of the second air inlet can intersect with the ground, that is, air inlet channels in different directions composed of a plurality of first air inlets and a plurality of second air inlets are formed on the supporting base plate. In this way, under the action of the cooling fan, more external cold air flows near the air inlet are prompted to enter the compressor cabin in the refrigerator from the plurality of first air inlets and the plurality of second air inlets to cool the device to be cooled, which effectively improves the heat dissipation efficiency of the device to be cooled, ensures the service life of the device to be cooled, and ensures the heat dissipation efficiency of the refrigerator and reduces the energy consumption of the refrigerator as a whole.

[0046] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0052] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigerator, characterized in that: include: A supporting base plate (100), a box body (200), a device to be cooled (300), and a cooling fan (400); The supporting bottom plate (100) comprises: a bottom plate body (101) connected to the bottom of the box body (200), and a convex shell (102) fixedly connected to the bottom plate body (101), the convex shell (102) protruding relative to the bottom plate body (101) in a direction away from the box body (200), the bottom plate body (101) having a plurality of first air inlets (a1), and a side wall of the convex shell (102) having a plurality of second air inlets (b1), and an opening surface of the second air inlet (b1) intersecting with an opening surface of the first air inlet (a1); The device (300) to be cooled and the cooling fan (400) are both mounted on the supporting base plate (100).

2. The refrigerator according to claim 1, characterized in that: The convex shell (102) comprises: a packaging plate (102a) arranged opposite to the bottom of the box body (200), and an annular side plate (102b) fixedly connected to the edge of the packaging plate (102a), and a side of the side plate (102b) facing away from the packaging plate (102a) is fixedly connected to the bottom plate body (101); The annular surface where the side plate (102b) is located intersects with the plane where the packaging plate (102a) is located, and intersects with the plane where the bottom plate body (101) is located; and the plurality of second air inlets (b1) are located on the side plate (102b).

3. The refrigerator according to claim 2, characterized in that: The second air inlet (b1) is strip-shaped, and the length extension direction of the second air inlet (b1) is parallel to the plane where the bottom plate body (101) is located.

4. The refrigerator according to claim 3, characterized in that: The first air inlet (a1) is strip-shaped, and a length extension direction of at least a portion of the first air inlet (a1) intersects with a length extension direction of at least a portion of the second air inlet (b1).

5. The refrigerator according to claim 2, characterized in that: The packaging plate (102a) has a plurality of third air inlets (b2), and the opening surfaces of the third air inlets (b2) are parallel to the opening surfaces of the first air inlets (a1).

6. The refrigerator according to any one of claims 2 to 5, characterized in that: The packaging plate (102a), the side plate (102b) and the bottom plate body (101) are an integrally formed sheet metal bending structure.

7. The refrigerator according to any one of claims 1 to 5, characterized in that: The bottom plate body (101) further comprises a plurality of first air outlets (a2), and the plurality of first air outlets (a2) and the plurality of first air inlets (a1) are respectively located on two sides of the bottom plate body (101).

8. The refrigerator according to claim 7, characterized in that: The refrigerator further comprises: a wind shield (500) fixedly connected to the bottom plate body (101), wherein at least a portion of the wind shield (500) is located between the plurality of first air outlets (a2) and the plurality of first air inlets (a1).

9. The refrigerator according to any one of claims 1 to 5, characterized in that: The refrigerator further comprises: a rear cover plate (600) fixedly connected to the supporting base plate (100), the rear cover plate (600) being fixedly connected to the side of the box body (200), the rear cover plate (600) having a plurality of fourth air inlets (c1) and a plurality of second air outlets (c2), the plurality of fourth air inlets (c1) and the plurality of second air outlets (c2) being respectively located on both sides of the rear cover plate (600).

10. The refrigerator according to any one of claims 1 to 5, characterized in that: The device (300) to be cooled comprises: a condenser (301) and a compressor (302); the cooling fan (400) is located between the condenser (301) and the compressor (302); an air inlet surface of the cooling fan (400) faces the condenser (301); and an air outlet surface of the cooling fan (400) faces the compressor (302).

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