CN219199616U

CN219199616U - Refrigerator and air duct assembly thereof

Info

Publication number: CN219199616U
Application number: CN202223547788.7U
Authority: CN
Inventors: 李鲁梦; 程学丽; 许以浩
Original assignee: Shenyang Haier Refrigerator Co ltd; Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Shenyang Haier Refrigerator Co ltd; Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a refrigerator and an air duct assembly thereof. The air duct assembly comprises an air duct cover plate which is used for covering the inner wall of the refrigerator body of the refrigerator to limit a cooling chamber with the inner wall. The air duct cover plate comprises a base plate and at least one turnover part, wherein the base plate is provided with at least one air outlet, each turnover part is flexibly connected to the edge of the base plate and used for overturning to the inner side of the base plate, so that at least one air duct is defined with the inner side surface of the base plate, cold air in the cooling chamber is allowed to enter the air duct, and the cold air is conveyed to the storage compartment of the box body through the air outlet. The air duct component has the advantages of simple and novel structure, better sealing performance, lighter weight and smaller occupied volume.

Description

Refrigerator and air duct assembly thereof

Technical Field

The utility model relates to a refrigeration and freezing device, in particular to a refrigerator and an air duct assembly thereof.

Background

With the continuous development of technology, air-cooled refrigerators have become a mainstream product of the refrigerator market. Air-cooled refrigerators generally require air ducts to convey cool air produced by an evaporator from a cooling compartment to each storage compartment for cooling the storage compartments.

The air duct of the existing refrigerator is generally formed by assembling various cover plates, heat-insulating foam and auxiliary materials, the assembly process is more, the cost is higher, the sealing design is complex, the volume is larger, and the small space inside the refrigerator body is occupied.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provides an air duct assembly with simple and novel structure and better sealing performance.

It is a further object of the present utility model to make the duct assembly lighter and thinner, making it less bulky.

Another object of the present utility model is to provide a refrigerator having the above air duct assembly.

In one aspect, the present utility model provides an air duct assembly for a refrigerator, comprising:

the air duct cover plate is used for covering the inner wall of the refrigerator body of the refrigerator so as to define a cooling chamber with the inner wall;

the air duct cover plate comprises a base plate and at least one turnover part, wherein the base plate is provided with at least one air outlet, each turnover part is flexibly connected to the edge of the base plate and used for overturning to the inner side of the base plate, so that at least one air duct is defined by the inner side surface of the base plate, cold air in the cooling chamber is allowed to enter the air duct, and the cold air is conveyed to the storage compartment of the box body through the air outlet.

Optionally, the air duct assembly further includes: at least one insulating layer, at least part of each insulating layer is filled in the air duct for guiding the trend of the air flow in the air duct.

Optionally, at least part of the edge of the turnover part connected with the base plate extends out of a positioning plate, and after the turnover part is turned in place, the positioning plate is attached to the inner side of the base plate.

Optionally, after at least part of the turnover part is turned in place, the positioning plate is clamped and fixed with the base plate.

Optionally, the air duct assembly further includes: and a fan installed on an inner side surface of the base plate and configured to suck cool air in the cooling chamber and discharge the cool air toward the air duct.

Optionally, the fan comprises a fan housing and an impeller arranged in the fan housing;

the air shell is arranged on the inner side surface of the base plate and is provided with an air suction port and at least one air exhaust port, the air suction port faces the cooling chamber, and each air exhaust port is opposite to the air inlet of one air channel.

Optionally, the fan is located at a lateral center position of the base plate, and the number of the air channels is multiple and surrounds the outer side of the fan.

Optionally, the air duct cover plate is used for covering the rear wall of the box body;

the number of the at least one turnover part is three, and the at least one turnover part is respectively connected with the top edge of the base plate and the two transverse side edges of the base plate;

the turnover part connected to the top edge of the base plate comprises a top plate, the turnover part connected to the transverse side edge of the base plate comprises a side plate, a rear plate and a bottom plate, one side of the side plate is connected to the edge of the base plate, the rear plate is connected to the other side of the side plate, the bottom plate is connected to the bottom edges of the side plate and the rear plate,

after each turnover part is turned in place, the top plate forms the top walls of the two air channels, the two side plates form the transverse side walls of the two air channels respectively, the two rear plates form the rear walls of the two air channels respectively, and the two bottom plates form the bottom walls of the two air channels respectively.

Optionally, the fan is a centrifugal fan, and its central axis is perpendicular to the base plate.

In another aspect, the present utility model also provides a refrigerator, including:

a case defining a storage compartment; and

the air duct assembly according to any one of the preceding claims, wherein the air duct assembly is fastened to an inner wall of the case to define a cooling chamber with the inner wall, so as to allow cool air in the cooling chamber to enter the air duct and be delivered to a storage compartment of the case through the air outlet.

In the air duct assembly, the air duct cover plate comprises the base plate and the turnover part, and the turnover part can limit the air duct of the air duct assembly after being turned over to the inner side of the base plate. Compared with an air duct assembly formed by combining and splicing a plurality of cover plates, the air duct assembly is formed by folding the integral plate-shaped air duct cover plates, the number of fasteners such as screws and the like and corresponding splicing and installing procedures are reduced, the structure is simpler, the cost is lower, the splicing gap is fewer, and the sealing performance is better.

In the air duct assembly, the fan is arranged on the inner side surface of the base plate, the impeller of the fan is a centrifugal impeller, and the number of the air ducts is multiple and surrounds the outer side of the fan. The structure skillfully utilizes the characteristics of axial air inlet and radial air outlet of the centrifugal impeller, and realizes the flattening of the air duct component, so that the volume of the air duct component is smaller, and the air duct component cannot occupy too much space of a storage compartment in the box body.

In the air duct assembly, the edge, connected with the base plate, of the turnover part of the air duct cover plate extends out of the positioning plate, and after the turnover part is turned in place, the positioning plate is attached to the inner side of the base plate. In addition, after the turnover part is turned in place, the positioning plate and the base plate can be clamped and fixed. The above designs all facilitate the accurate arrival and stable retention of the tuck in the preset tuck position.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a partial structural schematic view of a refrigerator according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the housing and duct assembly of the structure of FIG. 1;

FIG. 3 is a schematic view of a duct assembly according to one embodiment of the utility model;

FIG. 4 is a top structural cross-sectional view of the air chute assembly shown in FIG. 3;

FIG. 5 is an exploded schematic view of the air chute assembly shown in FIG. 3;

FIG. 6 is an exploded view of the duct cover and insulation layer of the duct assembly of FIG. 5;

FIG. 7 is a schematic view of the front side view of the structure of FIG. 6;

FIG. 8 is a schematic view of an expanded state of the duct cover;

fig. 9 is an enlarged view at a of fig. 8.

Detailed Description

A refrigerator and an air duct assembly thereof according to an embodiment of the present utility model will be described with reference to fig. 1 to 9. Where the terms "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "transverse", etc., refer to an orientation or positional relationship based on that shown in the drawings, this is merely for convenience in describing the utility model and to simplify the description, and does not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include at least one, i.e. one or more, of the feature, either explicitly or implicitly. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

An aspect of an embodiment of the present utility model provides a refrigerator.

Fig. 1 is a partial structural schematic view of a refrigerator according to an embodiment of the present utility model; fig. 2 is an exploded view of the housing 10 and duct assembly 30 of the structure of fig. 1.

As shown in fig. 1 and 2, a refrigerator according to an embodiment of the present utility model may generally include a cabinet 10 and a duct assembly 30.

The case 10 defines

storage compartments

101, 102 for storing food or other items. Specifically, the case 10 may include a housing 11 and a liner 12, and a foaming layer may be provided between the housing 11 and the liner 12. The exterior of the housing 11 forms the appearance of a refrigerator, and the liner 12 defines storage compartments 101, 102.

The storage compartments 101, 102 may be divided into a refrigerating compartment, a freezing compartment, a temperature changing compartment, etc., according to the difference in storage temperature. The temperature ranges within the various types of storage compartments are different. For example, the temperature in the refrigeration compartment is generally controlled between 2 ℃ and 10 ℃, preferably between 4 ℃ and 7 ℃. The temperature in the freezer compartment is typically controlled in the range of-22 ℃ to-14 ℃. The temperature changing chamber can be adjusted between-18 ℃ and 8 ℃ to realize the temperature changing effect. The optimal storage temperatures of different kinds of articles are different, and the storage compartments suitable for storage are also different. For example, fruit and vegetable foods are suitably stored in the refrigerating chamber, and meat foods are suitably stored in the freezing chamber. Each storage compartment is provided with a door or drawer (not shown) for opening and closing the storage compartment.

The air duct assembly 30 is an air duct assembly 30 according to any embodiment of the present utility model, and the air duct assembly 30 is fastened to the inner wall of the box 10 to define a cooling chamber 106 with the inner wall. Specifically, the inner wall of the case 10, i.e., the inner wall of the liner 12 thereof. For example, the duct assembly 30 may be snapped onto the rear or lateral side walls of the cabinet 10. Fig. 2 illustrates an embodiment in which the duct assembly 30 is fastened to the rear wall. Cool air produced by the refrigerator enters the air duct 320 from the cooling chamber 106 and is delivered to the storage compartment 102 of the case 10 through the air outlet 120. After cooling/freezing the objects in the storage compartment 102, the temperature rises, and then returns to the cooling compartment 106 through the return air duct to be cooled again, thus forming an air path circulation. As shown in fig. 2, the lower part of the air duct assembly 30 is provided with a cover plate 180, and a space is arranged between the cover plate 180 and the bottom wall 126 of the storage compartment 102, and the space is communicated with the cooling chamber 106 and the storage compartment 102 to form an air return duct of the storage compartment 102.

In some embodiments, the air chute assembly 30 is snap-fit to the inner wall of the housing 10. As shown in fig. 2, the edge of the air duct assembly 30 may have a plurality of buckles 302, and the inner wall of the case 10 has a plurality of corresponding buckle holes 13, where each buckle 302 is engaged with one of the buckle holes 13.

In some embodiments, as shown in fig. 2, the refrigerator may use a vapor compression refrigeration cycle system to cool to produce cool air. The vapor compression refrigeration cycle includes a compressor, condenser, evaporator 50, a throttling device, and other refrigeration accessories. The evaporator 50 may be disposed within the cooling chamber 106 described above.

FIG. 3 is a schematic view of a duct assembly 30 according to one embodiment of the utility model; FIG. 4 is a top structural cross-sectional view of the air chute assembly 30 shown in FIG. 3; FIG. 5 is an exploded schematic view of the air chute assembly 30 of FIG. 3;

FIG. 6 is an exploded view of the duct cover 31 and insulation 32 of the duct assembly 30 of FIG. 5; FIG. 7 is a schematic view of the front side view of the structure of FIG. 6; fig. 8 is a schematic view of the development state of the duct cover 31; fig. 9 is an enlarged view at a of fig. 8.

The duct assembly 30 according to an embodiment of the present utility model is described below with reference to fig. 3 to 9.

As shown in fig. 3-9, the duct assembly 30 of embodiments of the present utility model may generally include a duct cover 31. The air duct cover plate 31 is used for covering the inner wall of the box body 10 to define a cooling chamber 106 with the inner wall.

The air duct cover plate 31 comprises a base plate 100 and at least one

turnover part

200, 300 and 400, wherein the base plate 100 is provided with at least one air outlet 120, and each

turnover part

200, 300 and 400 is flexibly connected to the edge of the base plate 100 so as to be convenient for turnover. Specifically, the connection portion between each of the

turnups

200, 300, 400 and the substrate 100 may have a thinned section, and may be bent without breaking under an external force, so as to implement flexible connection.

Before the duct cover 31 is manufactured, the base plate 100 and the

turnover parts

200, 300, 400 are formed as a single piece in a substantially plate-like structure, and are formed in a spread shape, specifically, may be formed by integral injection molding, as shown in fig. 8. When the duct cover 31 is manufactured, the

turnover parts

200, 300, 400 are turned over to the inner side of the base plate 100, so that at least one duct 320 is defined with the inner side surface of the base plate 100, to allow the cool air in the cooling chamber 106 to enter the duct 320 and be delivered to the storage compartment 102 of the case 10 through the air outlet 120.

In the air duct assembly 30 of the embodiment of the present utility model, the air duct cover 31 includes the base plate 100 and the

turnover parts

200, 300, 400, and the

turnover parts

200, 300, 400 can define the air duct 320 of the air duct assembly 30 after being turned over to the inner side of the base plate 100. Compared with the air duct assembly 30 formed by combining and splicing a plurality of cover plates, the air duct assembly 30 is formed by folding the integral plate-shaped air duct cover plate 31, so that the number of fasteners such as screws and the like and corresponding splicing and installing procedures are reduced, the structure is simpler, the cost is lower, the splicing gap is fewer, and the sealing performance is better.

In some embodiments, as shown in fig. 3, 6, and 7, the duct assembly 30 further includes at least one insulation layer 32, with at least a portion of each insulation layer 32 being filled within the duct 320 for directing the flow of air within the duct 320. For example, in fig. 7, a portion of the insulating layer 32 may be filled in the duct 320 and a portion may be exposed. The insulating layer 32 may be foam in particular. The heat insulating layer 32 serves to insulate heat and keep the cool air in the air duct 320 at a predetermined temperature. The insulation layer 32 on the other hand serves to guide the cold air. As shown in fig. 7, the side of the heat insulation layer 32 is provided with an air inlet 321 of the air duct 320, and the front of the heat insulation layer 32 is provided with a plurality of outlets 322 of the air duct 320, wherein each outlet 322 is opposite to one air outlet 120. The heat insulating layer 32 is further formed with a heat insulating flow path 3201 having a smaller volume than the air duct 320 between the air inlet 321 and the outlet 322 for guiding cool air. In this manner, a smaller, insulated small air duct (insulating flow channel 3201) is further defined within air duct 320 by insulating layer 32. Alternatively, a heat insulating layer is added to the inner wall surface of the duct 320.

As shown in fig. 3, the

turnover parts

300 and 400 may be provided with at least one positioning hole 336, so that a screw passes through the positioning hole 336 to be screwed on the heat insulation layer 32, thereby fixing the heat insulation layer 32 and the

turnover parts

300 and 400.

In some embodiments, as shown in fig. 8 and 9, at least a portion of the edges of the

folds

200, 300, 400 that are connected to the base plate 100 may extend beyond the locating

plates

270, 370, 470, and after the

folds

200, 300, 400 are folded in place, the locating

plates

270, 370, 470 are attached to the inside of the base plate 100. Further, when at least part of the

turnover parts

200, 300, 400 are turned in place, the

positioning plates

270, 370, 470 are clamped and fixed with the base plate 100.

For example, in fig. 9, taking the turnover part 300 as an example, the positioning plate 370 may be provided with a fastening hole 372, and the inner side surface of the substrate 100 may be formed with a fastener 170 in a protruding manner. After the fold 300 is folded into place, the clip 170 snaps into the clip hole 372. In this way, the hinge 300 can be accurately reached and stably maintained at the predetermined hinge position.

In some embodiments, as shown in fig. 3 and 5, the air chute assembly 30 further includes a blower 33. The fan 33 is mounted on the inner surface of the substrate 100, and is configured to suck cool air in the cooling chamber 106 and discharge the cool air toward the duct 320.

Specifically, as shown in fig. 5, the blower 33 may include a housing 331 and an impeller 332 disposed within the housing 331. The air case 331 is mounted on the inner side of the substrate 100, and has an air inlet 334 and at least one air outlet 333. Wherein the air intake 334 faces the cooling chamber 106, and each air outlet 333 is opposite to the air intake 321 of one air duct 320. Specifically, if the duct assembly 30 covers the rear wall of the storage compartment, the air inlet 334 is opened rearward. The inner side of the base plate 100 may be provided with a plurality of mounting posts 110 for mounting the wind housing 331. By providing the air case 331, the direction of the cool air can be better guided, so that the cool air can enter the air duct 320 more smoothly.

In some embodiments, the blower 33 may be located at a lateral center of the substrate 100, and the number of air channels 320 is plural and surrounds the outside of the blower 33. For example, as shown in fig. 3, the number of the air ducts 320 may be two and arranged in the lateral direction of the substrate 100. The air inlets 321 of the two air channels 320 are arranged opposite to each other. The number of the exhaust ports 333 is two and is located at both lateral sides of the wind housing 331, respectively.

The fan 33 is preferably a centrifugal fan, i.e. the impeller 332 is a centrifugal impeller with its center axis perpendicular to the base plate 100. The centrifugal impeller has an axial air inlet and radial air outlet structure, so that the air inlet side faces the cooling chamber 106, and the air outlet side faces the air inlets 321 on two sides of the fan 33. The structure skillfully utilizes the characteristics of axial air inlet and radial air outlet of the centrifugal impeller, and realizes the flattening of the air duct assembly 30, so that the volume of the air duct assembly 30 is smaller, and the air duct assembly cannot occupy too much space of the storage compartment 102 in the box body 10.

As shown in fig. 8 and 9, the duct cover 31 may be used to cover the rear wall of the case 10. The number of the at least one

turnover part

200, 300, 400 is three, and the turnover part is respectively connected to the top edge of the base plate 100 and the two lateral sides of the base plate 100.

The turnover part 200 connected to the top edge of the base plate 100 includes a top plate 260, the turnover part 300 connected to the lateral side edge of the base plate 100 includes a side plate 310, a rear plate 330 and a bottom plate 350, one side of the side plate 310 is connected to the edge of the base plate 100, the rear plate 330 is connected to the other side of the side plate 310, and the bottom plate 350 is connected to the bottom edges of the side plate 310 and the rear plate 330. The turnover part 400 connected to the other lateral side of the base plate 100 includes a side plate 410, a rear plate 430 and a bottom plate 450, one side of the side plate 410 is connected to the edge of the base plate 100, the rear plate 430 is connected to the other side of the side plate 410, and the bottom plate 450 is connected to the bottom edges of the side plate 410 and the rear plate 430.

After each of the

turnups

200, 300, 400 is turned in place, the top plate 260 forms top walls of the two air ducts 320, the two side plates 310 form lateral side walls of the two air ducts 320, the two rear plates 330 form rear walls of the two air ducts 320, the two bottom plates 350 form bottom walls of the two air ducts 320, respectively, and the turned state is referred to fig. 6. The top panel 260 forms a lap seal with the top edges of the

side panels

310, 410 and the top edges of the

back panels

330, 430. The above embodiment forms two air channels 320 located at two lateral sides of the base plate 100 by three

turnover parts

200, 300, 400, and the structure is very smart.

In some embodiments, as shown in fig. 3 and 4, at least part of the sides of the duct cover 31 have sealing fins 800 extending along the length direction thereof, so that each sealing fin 800 is abutted against the inner wall of the case 10 after the duct cover 31 is covered on the inner wall of the case 10 to seal the gap between the duct cover 31 and the inner wall of the case 10.

For example, as shown in fig. 1 and 2, the duct cover 31 may be fastened to the rear wall of the case 10 such that the upper edge and the lateral both edges of the duct cover 31 are provided with sealing fins 800, respectively. The lower portion of the air duct assembly 30 extends forwardly out of the cover plate 180, and a space is provided between the cover plate 180 and the bottom wall 126 of the storage compartment 102, and the space communicates with the cooling chamber 106 and the storage compartment 102 to form a return air duct of the storage compartment 102. Therefore, the sealing fin 800 is not required to be provided at the lower edge of the duct cover 31.

In some embodiments, as shown in fig. 4, the thickness of each sealing fin 800 gradually decreases during extension outward from the surface of the duct cover 31. The extended ends of the sealing fins are made to be the thinnest so as to form tips so as to be more easily deformed by the pressure of the inner wall of the case 10 to be more closely fitted to the inner wall surface of the case 10.

As shown in fig. 4, each sealing fin 800 may be curved with its concave side facing the inner wall of the case 10. Specifically, the concave surface of the sealing fin 800 may be formed in an arc shape with its axis parallel to the edge of the duct cover 31. This allows the sealing fin 800 to be better "snapped" onto the inner wall surface of the case 10, resulting in a greater compression force, thereby enhancing sealing performance.

In some embodiments, as shown in fig. 4, each sealing fin 800 may be formed as a unitary piece with the duct cover 31 by a two-shot injection molding process. That is, the sealing fin 800 and the duct cover 31 are injection molded as one piece, but different materials are used in the injection molding process. The hardness of the sealing fin 800 is made to be smaller than that of the air duct cover plate 31, so that the bending of the sealing fin 800 is facilitated. For example, the sealing fin 800 may be made of silica gel, and the duct cover 31 may be made of PP or PVC.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims

1. An air duct assembly for a refrigerator, comprising:

2. The air duct assembly of claim 1, further comprising:

at least one insulating layer, at least part of each insulating layer is filled in the air duct for guiding the trend of the air flow in the air duct.

3. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

at least part of the edge of the turnover part connected with the base plate extends out of a positioning plate, and after the turnover part is turned in place, the positioning plate is attached to the inner side of the base plate.

4. The duct assembly of claim 3, wherein,

at least part of the turnover parts are turned in place, and then the locating plates are clamped and fixed with the base plate.

5. The air duct assembly of claim 1, further comprising:

and a fan installed on an inner side surface of the base plate and configured to suck cool air in the cooling chamber and discharge the cool air toward the air duct.

6. The duct assembly of claim 5, wherein the air duct assembly comprises,

the fan comprises a fan shell and an impeller arranged in the fan shell;

7. The duct assembly of claim 5, wherein the air duct assembly comprises,

the fans are located at the transverse center of the base plate, and the number of the air channels is multiple and surrounds the outer sides of the fans.

8. The duct assembly of claim 7, wherein the duct assembly comprises,

the air duct cover plate is used for covering the rear wall of the box body;

9. The duct assembly of claim 7, wherein the duct assembly comprises,

the fan is a centrifugal fan, and the central axis of the fan is perpendicular to the base plate.

10. A refrigerator, characterized by comprising:

a case defining a storage compartment; and

the air duct assembly of any of claims 1-9, the air duct assembly being snapped onto an interior wall of the housing to define a cooling chamber with the interior wall to allow cool air within the cooling chamber to enter the air duct and be delivered to the storage compartment via the air outlet.