CN114174742B

CN114174742B - Refrigerator capable of improving indoor air circulation of machine

Info

Publication number: CN114174742B
Application number: CN202080052753.0A
Authority: CN
Inventors: 托马斯·瑞安·约瑟夫; 克莱恩·斯科特·P
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Haier US Appliance Solutions Inc
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Haier US Appliance Solutions Inc
Priority date: 2019-07-26
Filing date: 2020-07-24
Publication date: 2024-03-19
Anticipated expiration: 2040-07-24
Also published as: US20210025641A1; WO2021018029A1; CN114174742A; EP4006457A1; EP4006457A4

Abstract

A refrigerator (100) includes a cabinet (110), a louver (222), and a plurality of laterally spaced apart blades (246, 248). The case (110) extends laterally between the first side (116) and the second side (118), and the case (110) is formed with a refrigerating chamber (128) and a machine chamber (210). The machine chamber (210) is provided with an air inlet (212) and an air outlet (214) which are arranged in a mutually separated way; the shutter plate (222) is arranged at the front side of the mechanical chamber (210), a plurality of lateral holes (224) are vertically arranged at intervals on the shutter plate (222), the lateral holes (224) are arranged in front of the air inlet (212) and the air outlet (214), and a first end (226) of the lateral holes (224) extends to a second end (228) along the lateral direction; a plurality of vanes (246, 248) are disposed at the air outlet (214) and extend rearwardly from the louver plates (222).

Description

Refrigerator capable of improving indoor air circulation of machine

Technical Field

The invention relates to the field of refrigerators or electric appliances, in particular to a refrigerator capable of improving indoor air circulation of a machine.

Background

Refrigerators or appliances generally include a cabinet formed with a refrigerating chamber, such as a fresh food chamber or a freezing chamber, for storing food or other perishable items. In addition, refrigerators generally further include a door rotatably hinged to the cabinet to selectively access food stored in the refrigerating compartment. Generally, a refrigerator includes a mechanical chamber to mount a compressor or a condenser.

It is often seen that conventional refrigerators extend from an installed wall or cabinet. To address this problem, some refrigerators (commonly referred to as built-in refrigerators) are configured to be installed in cabinets, making the refrigerators appear to be an integral part of a kitchen or room. Although aesthetically pleasing, other problems may arise. The machine compartment is typically stacked vertically below the refrigeration compartment. Therefore, it is difficult to circulate air in the machine room for heat exchange. The air inlet and the air outlet must generally be positioned adjacent to each other, for example on the front side of the refrigerator. In turn, it is difficult to avoid mixing of the inlet air flow into the machine chamber with the outlet air flow from the machine chamber.

Devices have attempted to solve the above-described air circulation problem by providing a wall or panel on the front or side that extends outwardly (i.e., to the user) from the machine room. Similarly, there are also solutions in which a wall plate extending from the door towards the machine room (when the door is closed) is provided. However, providing discrete elements or structures in front of the machine room often results in an unsightly appearance. Such a configuration may also create an external surface that affects the user's use, such as catching fabric, depositing dust, and even catching a user passing in front of the device.

Accordingly, there is an urgent need in the art for further designs of air circulation structures in refrigerators or appliances, and in particular to provide a refrigerator or appliance having one or more features that prevent mixing of air flow into and out of the machine compartment while still providing a continuous or uninterrupted front surface.

Disclosure of Invention

Various aspects and advantages of the invention will be set forth in part in the following description, which is either obvious or may be learned through practice of the invention.

In one exemplary aspect of the present disclosure, a refrigerator is provided that includes a cabinet, a louver, and a plurality of laterally spaced apart blades. The box extends along the side direction between first side and second side to be formed with refrigerating chamber and machinery room, machinery room has air intake and the air outlet that separates the setting each other. The shutter plate is arranged on the front side of the mechanical chamber and is provided with a plurality of lateral holes along the vertical interval, the lateral holes are in front of the air inlet and the air outlet, and the first ends of the lateral holes extend to the second end face along the lateral direction. The blades are arranged at the air outlet and extend backwards from the shutter plate.

In another exemplary aspect of the present disclosure, a refrigerator is provided that includes a cabinet, a louver, and a plurality of laterally spaced apart blades. The box extends along the side direction between first side and second side to be formed with refrigerating chamber and machinery room, machinery room has air intake and the air outlet that separates the setting each other. The shutter plate is arranged on the front side of the mechanical chamber and is provided with a plurality of lateral holes along the vertical interval, the lateral holes are in front of the air inlet and the air outlet, and the first ends of the lateral holes extend to the second end face along the lateral direction. The blades are arranged at the air outlet and extend backwards from the shutter plate, and the blades arranged at intervals along the lateral direction extend towards the direction away from the air inlet.

These and other features, aspects, and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are included to provide a further understanding of the principles of the invention, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

Drawings

The present invention is fully and practically disclosed to one of ordinary skill in the art, including the best mode thereof, with reference to the drawings accompanying this specification.

Fig. 1 is an elevation view of a refrigerator according to an exemplary embodiment of the present disclosure.

Fig. 2 is an elevation view of the exemplary refrigerator of fig. 1, with the door in an open position.

Fig. 3 is a cross-sectional view of the mechanical compartment of the exemplary refrigerator of fig. 1 taken along the 3-3 position shown in fig. 2.

Fig. 4 is a rear perspective view of a mechanical chamber of a refrigerator according to an exemplary embodiment of the present disclosure.

Fig. 5 is a front perspective view of a mechanical chamber of a refrigerator according to an exemplary embodiment of the present disclosure.

Fig. 6 is a front perspective view of the exemplary machine room of fig. 4 with the front louver removed for clarity.

Fig. 7 is an elevation view of a refrigerator according to an exemplary embodiment of the present disclosure, with one door shown in an open position.

Detailed Description

Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation, not limitation, of the invention. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the scope of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Accordingly, it is intended that the present invention cover such modifications and variations as come within the scope of the appended claims and their equivalents.

As used herein, "or" is generally intended to mean included (i.e., "a or B" is intended to mean "a or B or both"). "first," "second," and "third" are used interchangeably to distinguish one component from another and are not intended to represent the exact location or importance of each component. "upstream" and "downstream" refer to the relative flow direction with respect to the flow of fluid in the fluid passageway. For example, "upstream" refers to the direction of flow from which fluid flows, and "downstream" refers to the direction of flow from which fluid flows. The words "inner" and "outer" refer to relative directions with respect to the interior and exterior of the refrigerator. For example, "interior" or "inward" refers to a direction toward the interior of a refrigerator appliance. The terms "left", "right", "front", "forward", "rear", "rearward", "top" or "bottom" are with reference to the user's perspective of approaching the refrigerator appliance. For example, a user stands in front of a refrigerator to open the refrigerator door and reaches into the refrigerator compartment to access food therein.

Referring now to fig. 1-3, a number of perspective views of an exemplary refrigerator 100 are provided. The refrigerator 100 according to one embodiment of the present disclosure defines a vertical direction V, a lateral direction L, and a lateral direction T (fig. 3), each of which is perpendicular to each other. As can be seen, the refrigerator appliance 100 includes a housing or case 110 extending along a vertical direction V between a top 112 and a bottom 114, along a lateral direction L between a left side (e.g., a first side) 116 and a right side (e.g., a second side) 118, and along a lateral direction T between a front end or side 120 (fig. 3) and a rear end or side 122 (fig. 3).

The case 110 defines one or more refrigeration compartments 128 (e.g., fresh food or freezer compartments) for containing food items to be stored. Specifically, a refrigerated compartment 128 is provided between the left 116 and right 118 sides. In some embodiments, the refrigerated compartment 128 is provided at or near the top 112 of the cabinet 110. Nevertheless, it should be understood that the fresh food compartment 128 can be provided at any suitable location within the refrigerator 100 unless otherwise indicated. Further, while a single refrigerated compartment 128 is shown, it should be understood that alternative embodiments may include any suitable number or shape of refrigerated compartments 128 (e.g., maintained at separate or discrete temperatures).

The refrigerator 100 also includes one or more refrigerator doors 124 rotatably mounted to the housing 110, e.g., such that the refrigerator doors 124 allow selective access to at least one portion of the refrigeration compartment 128. In some embodiments, the refrigerator door 124 is rotatably mounted to the case 110 on one side (e.g., the right side 118) of the case 110. A handle 130 may be provided on the refrigerator door 124 to facilitate moving the door 124 between a closed position (fig. 1) that restricts access to the fresh food compartment 128 (e.g., by extending across the fresh food compartment 128) and an open position (fig. 2) that allows access to the fresh food compartment 128 (e.g., by being spaced apart from the fresh food compartment 128).

As shown in fig. 2, various storage components may be installed within the fresh keeping 100 to facilitate storage of food. In certain embodiments, the storage assembly includes a door shelf 132, a drawer 134, and a shelf 136, which is mounted within the refrigerated compartment 128. The door shelves 132, drawers 134, and shelves 136 are configured to contain food (e.g., beverage or solid food) and to facilitate the preparation of such food.

Typically, a sealing system is provided to cool the air within the refrigerated compartment 128 (e.g., by circulating a refrigerant as at least a portion of the refrigeration cycle). For example, one or more components of the sealing system (e.g., the compressor 238 or the condenser 240) may be housed or disposed within the machine compartment 210 (e.g., below or directly below the refrigerated compartment 128) defined by the cabinet 110. In some embodiments, the machine compartment 210 is selectively covered or enclosed with a door 124 (e.g., in a closed position). In particular, the machine room 210 may be provided behind the door 124. With respect to vertical V, one or more openings (e.g., lateral holes 224) of the machine chamber 210 may be provided above the bottom edge 126 of the door 124. In this way, when the door 124 is closed, one or more (e.g., all) of the lateral apertures 224 may be hidden from view by a user standing in front of the assembly 100.

Referring particularly to fig. 3-6, various views of the machine chamber 210 (e.g., the bottom 114 of the housing 110) are provided. In some embodiments, the machine room 210 spans the housing 110 in the lateral direction L from the left side 116 to the right side 118. In additional or alternative embodiments, the machine chamber 210 spans the housing 110 in the lateral direction T from the front end 120 to the rear end 122.

Typically, the machine chamber 210 includes an air intake 212 (e.g., provided at the front end 120) for allowing air to enter the machine chamber 210 and an air outlet 214 (e.g., provided at the front end 120) for allowing air to exit the machine chamber 210. In certain embodiments, the air inlet 212 and the air outlet 214 are disposed laterally adjacent to each other. For example, the air inlet 212 and the air outlet 214 may be laterally disposed at a location remote from each other. In some embodiments, the air intake 212 is disposed at a proximal end of the right side 118 (i.e., a distal end of the left side 116), and the air outlet 214 is disposed at a proximal end of the left side 116 (i.e., a distal end of the right side 118). Within the machine chamber 210, the machine chamber 210 includes one or more air passages (e.g., air intake passages 216, 218 or output passage 220) to direct air flow through the machine chamber 210 from the air intake 212 to the air outlet 214.

The louver 222 is installed in front of the machine room 210 of the case 110. In particular, the louvers 222 may be positioned in front of openings that at least partially define the air inlet 212 and the air outlet 214 (e.g., below the refrigeration compartment 128 in fig. 2). In some embodiments, the louvers 222 extend along the lateral direction L from the left side 116 to the right side 118. A plurality of lateral apertures 224 are defined in at least a portion of the louvers 222. As shown, the first end 226 to the second end 228 of the plurality of lateral bores 224 extend along the lateral direction L. In certain embodiments, the lateral bore 224 is uninterrupted or free of any discontinuous interruption elements between the first end 226 and the second end 228. Thus, a plurality of the lateral holes 224 may be present as a continuous line or opening (e.g., the bottom of the refrigerator 100 in fig. 2). Further, the lateral aperture 224 may appear as the only opening under the refrigerated compartment 128. Each lateral aperture 224 may be spaced apart from one another (e.g., vertically). In some such embodiments, one or more of the lateral apertures 224 are parallel to one another.

The plurality of lateral apertures 224 extend beyond the air inlet 212 and the air outlet 214 when mounted to the housing 110. The air inlet 212 and the air outlet 214 may be bounded or otherwise further defined by louvers 222.

The lateral aperture 224 generally extends from the machine compartment 210 in the lateral direction T to the front end 120 of the refrigerator 100. In an alternative embodiment, one or more of the lateral apertures 224 extend at an angle (e.g., non-parallel) to the transverse direction T. For example, one or more lateral apertures 224 may be directed downward from the machine chamber 210 at a negative angle to the lateral direction T. In this way, air channeled from machine chamber 210 through lateral apertures 224 may flow forward from machine chamber 210 and toward the ground (e.g., away from refrigeration chamber 128).

Returning to fig. 1 and 2, as described above, the door 124 may be provided in front of the machine chamber 210. After assembly, the door 124 may be further positioned in front of the louvers 222. In some embodiments, the lower edge 126 of the door 124 is disposed below the bottom edge or bottommost lateral aperture 224 of the louver 222. Thus, in the closed position, the door 124 may cover or conceal the louvers 222. In contrast, in the open position of the door 124, access to the louvers 222 may be allowed (e.g., such that the louvers 222 and lateral apertures 224 may be seen when a user is standing in front of the refrigerator 100).

Returning to fig. 3-6, in an exemplary embodiment, chamber walls 230 are provided within the machine chamber 210. As shown, the chamber wall 230 extends generally in a transverse direction T (e.g., rearward relative to the louvers 222). The chamber wall 230 may be disposed between the air inlet 212 and the air outlet 214 (e.g., relative to the lateral direction L). The chamber walls 230 may help enclose or define separate air intake passages (e.g., with lateral air intake 216 or lateral air intake 218) and air output passages 220. In use, the air output passage 220 is downstream of the air intake passage 216 or 218 within the machine chamber 210. In some such embodiments, chamber walls 230 extend from an upper end 232 to a lower end 234 of the machine chamber 210. In this way, air entering the machine chamber 210 through the air inlet 212 may be prevented from immediately mixing with air exiting the air outlet 214 (e.g., on the front end 120 of the housing 110). In other embodiments, the chamber walls 230 are mounted or secured to a chassis or floor 236 of the housing 110 (e.g., the chassis or floor defining the bottommost portion of the machine chamber 210).

In some embodiments, chamber walls 230 extend from the front end 120 to a portion of the machine chamber 210 forward from the rear end 122 to define the lateral air intake 216. Further, a lateral gap between the chamber wall 230 and the rear end 122 of the case 110 may define the lateral air intake 218 (e.g., as a continuation or portion of the air intake channel). In some such embodiments, the output channel 220 is defined along the lateral direction L between the left side 116 and the chamber wall 230, while along the lateral direction T between the front end 120 and the air handler 242. At least a portion of the air intake passage (e.g., the lateral air intake 216) is defined along the lateral direction L between the right side 118 and the chamber wall 230, and along the lateral direction T between the front end 120 and the lateral air intake 218. The lateral air intake 218 may be disposed between the lateral air intake 216 and the output channel 220 with respect to fluid flow. In this way, during use, air may flow from the lateral air inlet 216 to the lateral air inlet 218 before reaching the output channel 220, for example.

As described above, one or more portions of the sealed refrigeration system may be housed within the machine chamber 210. In some embodiments, a compressor 238 for compressing or forcing refrigerant through a sealing system is mounted on the tank 110 within the machine chamber 210 (e.g., in the output channel 220). In additional or alternative embodiments, a condenser 240 (e.g., in fluid communication with the compressor 238) is provided in the machine chamber 210. For example, the condenser 240 may be disposed proximate the rear end 122 of the housing 110 (e.g., at the lateral inlet portion 216 or the lateral inlet portion 218 of the inlet air channel, as shown). In some such embodiments, the condenser 240 is disposed aft of the compressor 238.

In some embodiments, an air handler 242 (e.g., a fan or blower) is mounted within the machine chamber 210 to facilitate or push an air flow therethrough (e.g., from the air intake 212 to the air outlet 214). For example, the air handler 242 may be directed at the compressor 238 or condenser 240 to draw air into various portions of the sealing system and facilitate or push heat exchange between the sealing system and the surrounding environment. In some embodiments, the air handler 242 is disposed upstream of the compressor 238. In an additional or alternative embodiment, an air handler 242 is provided downstream of the condenser 240. Alternatively, the air handler 242 may be disposed between the compressor 238 and the condenser 240 along the transverse direction T. In additional or alternative embodiments, an air handler 242 is provided between the output channel 220 and the intake channels 216, 218 (e.g., between the condenser 240 and the compressor 238). Thus, the output channel 220 may be a positive pressure channel while the intake channels 216, 218 are negative pressure channels. In an alternative embodiment, one or more secondary apertures 244 are provided through the rear end 122 of the housing 110 in fluid communication with the air handler 242 to provide for supplemental or secondary air to mix with air from the air intake passages 216, 218 (e.g., within the lateral air intake portion 218 or the output passage 220).

As shown, a plurality of laterally spaced apart vanes 246,248 are disposed adjacent the louvres 222. In some embodiments, the vanes 246,248 are fixed or mounted to the blind slat 222. For example, one or more adhesives, welds, or mechanical fasteners may be used to secure the blades 246,248 directly to the blind slat 222. As such, selective removal or installation of the louvers 222 from the housing 110 may facilitate removal or installation of the blades 246,248 within the machine compartment.

Typically, the vanes 246,248 extend rearwardly from the slat 222 (e.g., at the outlet 214). In this way, when assembled, the vanes 246,248 are positioned opposite the forward facing surface of the slat 222 and are advantageously hidden from view or access by a user. Each vane 246,248 is spaced apart from each other along the lateral direction L. In this way, independent air passages may be defined between adjacent blades 246, 248. Upon assembly, the blades 246,248 may be positioned within at least a portion of the output channel 220 (e.g., proximal of the front end 120). In alternative embodiments, the blades 246,248 may be positioned forward (e.g., along or relative to the transverse direction T) of the compressor 238 or the air handler 242.

In certain embodiments, one or more blades (e.g., of the first set of blades 246) are disposed away from the right side 118 or the intake vent 212. For example, one or more of the blades 246A, 246B may not be parallel to the transverse direction T. The at least one vane 246,248 may define a flow angle θ1 (e.g., relative to the lateral direction) away from, for example, the second end 228. Alternatively, the plurality of vanes 246 may define a flow angle θ1 away from the second end 228. In some such embodiments, the plurality of divided vanes 246 define a plurality of divided flow angles θ1. For example, as the lateral distance between the discrete blades 246 increases relative to the second end 228 or the intake 212, the flow angle θ1 may generally sequentially increase relative to the transverse direction T. As such, the flow angle θ1 defined by the first vane 246A proximal to the second end 228 may be less than the flow angle θ1 defined by the second vane 246B distal to the second end 228 (i.e., distal to the first vane 246A). Advantageously, air from the air outlet 214 may be substantially prevented from mixing with air entering the machine chamber 210 (e.g., through the air inlet 212).

In additional or alternative embodiments, one or more blades (e.g., of the second set of blades 248) are disposed away from the left side 116. For example, one or more of the blades 248 may not be parallel to the transverse direction T. The at least one vane 248 may define a flow angle θ2 (e.g., relative to the lateral direction) away from, for example, the first end 226. Alternatively, the plurality of vanes 248 may define a flow angle θ2 away from the first end 226. In some such embodiments, the plurality of separate blades 248 define a plurality of separate flow angles θ2. For example, as the lateral distance between the discrete blades 248 increases relative to the first end 226, the flow angle θ2 may generally sequentially increase relative to the transverse direction T.

As such, the flow angle θ2 defined by the first blade 248A proximal to the first end 226 may be less than the flow angle θ2 defined by the second blade 248B distal to the first end 226 (i.e., distal compared to the first blade 248A).

In an alternative embodiment, a first set of blades 246 (e.g., pointing to left side 116) and a second set of blades 248 (e.g., pointing to right side 118) are provided. In some such embodiments, the first set of blades 246 also points toward the second set of blades 248, and vice versa. In this way, air channeled from first set of blades 246 may be directed to the front of box 110 to fuse with air from second set of blades 248. Further, a first set of blades 246 may be provided at the proximal end of the right side 118, while a second set of blades 248 may be provided at the proximal end of the left side 116.

Referring briefly now to fig. 7, another exemplary embodiment of a refrigerator 100 is provided. As shown, the refrigerator 100 includes separate main and sub-cases 110 and 310. In general, it should be appreciated that the main housing 110 may include a machine chamber 210, the machine chamber 210 including one or more of the features described above. The secondary housing 310 may include one or more similar features. For example, the sub-tank 310 may extend along the lateral direction L between a left side (e.g., a first side) 316 and a right side (e.g., a second side) 318 to define a refrigerated compartment 324 and a machine compartment 410 (e.g., below the refrigerated compartment 324). The machine chamber 410 of the secondary housing 310 may include separate air inlets 412 and air outlets 414. As described above in the context of the machine room 210, the air intake 412 may be located proximal to the right side 318 and the air outlet 414 may be located proximal to the left side 320. In an alternative embodiment, the door 324 of the secondary housing 310 may be rotatably attached on a side opposite the door 124 of the primary housing 110 (e.g., the left side 316).

As shown, the right side 318 of the secondary housing 310 may rest against the left side 116 of the primary housing 110. The air inlet 412 of the machine chamber 410 of the sub-tank 310 may be disposed at a proximal end of the air outlet 214 of the machine chamber 210 of the main tank 110. In some such embodiments, a plurality of vanes (e.g., second set 248 in fig. 3) within the machine chamber 210 are directed to the right 118. Advantageously, the air output from the machine chamber 210 may thus be directed away from the air intake 412 of the machine chamber 410.

This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.

Claims

1. A refrigerator defining a vertical direction, a lateral direction and a transverse direction perpendicular to each other, the refrigerator comprising:

the refrigerator comprises a box body, a first side surface and a second side surface, wherein the box body extends along the lateral direction between the first side surface and the second side surface, the box body is provided with a refrigerating chamber and a mechanical chamber, and the mechanical chamber is provided with an air inlet and an air outlet which are mutually separated;

the shutter plate is arranged on the front side of the mechanical chamber, a plurality of lateral holes are vertically arranged at intervals, the lateral holes are arranged in front of the air inlet and the air outlet, the first ends of the lateral holes extend to the second ends along the lateral direction, the air inlet is arranged close to the second ends, and the air outlet is arranged close to the first ends;

the blades are arranged at intervals along the lateral direction, are arranged at the air outlet and extend backwards from the shutter plate; the plurality of vanes includes a first set of vanes proximate the second end, a second set of vanes on a side of the first set of vanes distal the second end, each vane of the first set of vanes defining a flow angle distal the second end, each vane of the second set of vanes defining a flow angle distal the first end.

2. The refrigerator of claim 1 further comprising a door on a front side of the louver, the door rotatably mounted to the housing, the door movable between an open position wherein the fresh food compartment and louver are open outwardly and a closed position wherein access to the fresh food compartment and covering of the louver are prevented.

3. The refrigerator of claim 1, further comprising a chamber wall located between the air inlet and the air outlet and extending laterally within the machine chamber.

4. The refrigerator of claim 1, further comprising a compressor mounted within the machine compartment for driving a refrigerant to flow in the closed refrigeration system.

5. The refrigerator of claim 4, further comprising an air handler disposed within the machine compartment for forcing air from the air inlet to the air outlet.

6. The refrigerator of claim 5, further comprising a condenser in communication with the compressor as part of the sealing system, the condenser being disposed within the machine compartment and behind the compressor and the air handler disposed between the condenser and the compressor in a lateral direction.

7. The refrigerator of claim 1, wherein the fresh food compartment is located above the louver and extends laterally between the first side and the second side.

8. The refrigerator of claim 1, wherein the cabinet is a main cabinet, the refrigerator further comprising:

the auxiliary box body extends along the lateral direction between the first side surface and the second side surface of the auxiliary box body, the auxiliary box body is provided with another refrigerating chamber and another mechanical chamber, and the mechanical chamber of the auxiliary box body is also provided with an air inlet and an air outlet which are mutually separated;

the second side surface of the auxiliary box body is propped against the first side surface of the main box body;

the air inlet of the mechanical chamber of the auxiliary box body is arranged at one end close to the air outlet of the mechanical chamber of the main box body.

9. The refrigerator of any one of claims 1-8, wherein the plurality of laterally spaced apart vanes extend away from the air inlet.