Air duct cover plate, air duct cover plate assembly, freezing chamber structure and refrigerator

Abstract

The utility model relates to an air duct cover plate, an air duct cover plate assembly, a freezing chamber structure and a refrigerator, and is characterized in that the air duct cover plate is provided with a first accommodating cavity which is formed by recessing from one side close to a freezing air duct to one side close to a freezing chamber; a first ventilation structure used for communicating the first containing cavity with the freezing chamber is arranged on the side, facing the freezing chamber, of the first containing cavity, and the first containing cavity is matched with an antibacterial device. A side plate is arranged on the side, facing the freezing chamber, of the first containing cavity, the side plate and the bottom face of the side, facing the freezing chamber, of the first containing cavity form a second containing cavity, and the second containing cavity is matched with the end of a drawer guide rail. According to the technical scheme, the universality of the air duct cover plate can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of refrigerators, and in particular to an air duct cover, an air duct cover assembly, a freezer compartment structure and a refrigerator. Background Art

[0002] In modern families, refrigerators play an important role as one of the essential household appliances. There are many types of refrigerators available on the market. Among them, French refrigerators and cross refrigerators have attracted much attention due to their popularity and versatility. The two mainly differ in the layout and structure of the freezer compartment. The freezer area of ​​a French refrigerator is generally designed with two layers of single drawers, which can directly put large food. The space is more spacious and transparent, which is conducive to quickly finding food and items; while the cross refrigerator is generally designed with three layers and six small drawers. Overall, there are more partitions, which is conducive to the detailed classification of stored food and items.

[0003] Due to the different layouts and structures of the freezer compartments, the designs of the drawer guides of French refrigerators and cross refrigerators cannot be unified. The drawer guides of the freezer compartment of a French refrigerator are usually set on both sides of the inner wall of the refrigerator freezer, while the cross refrigerator sets drawer guides in the middle of the freezer air duct cover to support the drawers on both sides, resulting in the structure of the air duct cover being different from that of the French refrigerator, affecting the universality of the freezer air duct cover between the French refrigerator and the cross refrigerator. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the embodiments of the present disclosure provide an air duct cover, an air duct cover assembly, a freezer compartment structure and a refrigerator, so as to improve the versatility of the air duct cover.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an air duct cover plate, wherein a first accommodating cavity is formed by being recessed from a side close to the freezing air duct to a side close to the freezing chamber, and a first air permeable structure for connecting the first accommodating cavity and the freezing chamber is provided on the side of the first accommodating cavity facing the freezing chamber, and the first accommodating cavity is adapted to be equipped with an antibacterial device;

[0006] A side plate is provided on the first accommodating cavity on the side facing the freezing chamber, and the side plate and the bottom surface of the first accommodating cavity on the side facing the freezing chamber form a second accommodating cavity, and the second accommodating cavity is adapted to the end of the drawer guide rail.

[0007] Optionally, the first air-permeable structure is located on the bottom surface or the side surface of the first accommodating cavity facing the freezing chamber.

[0008] Optionally, the first breathable structure includes breathable holes.

[0009] Optionally, the second accommodating cavity is located in the middle of the air duct cover.

[0010] According to a second aspect of the embodiments of the present disclosure, there is provided an air duct cover assembly, comprising the air duct cover as described in the embodiment of the first aspect above; and

[0011] an antibacterial device, the antibacterial device being located in the first containing cavity;

[0012] A sealing sponge is attached to a side of the air duct cover plate close to the freezing air duct to seal the first accommodating cavity.

[0013] Optionally, the sealing sponge is adhered to the air duct cover plate by an adhesive.

[0014] Optionally, the antibacterial device comprises a bursting sponge with a volatile antibacterial agent built in.

[0015] According to a second aspect of the embodiments of the present disclosure, there is provided a freezer compartment structure of a cross-air cooling refrigerator, comprising an air duct cover plate assembly as described in the embodiment of the second aspect above; and

[0016] A drawer guide rail, an end of which is adapted to the second accommodating cavity.

[0017] Optionally, the drawer guide is a hollow structure, the end of the drawer guide is provided with a second air permeable structure for connecting the first accommodating cavity and the interior of the drawer guide, and the side wall of the drawer guide is provided with a third air permeable structure for connecting the interior of the drawer guide and the freezer chamber.

[0018] According to a third aspect of an embodiment of the present disclosure, a freezer compartment structure of a French air-cooled refrigerator is provided, comprising an air duct cover assembly as described in the embodiment of the second aspect above.

[0019] According to a fourth aspect of an embodiment of the present disclosure, a refrigerator is provided, comprising a freezer compartment structure of a cross-air cooling refrigerator or a freezer compartment structure of a French air cooling refrigerator as described in the embodiment of the third aspect or the fourth aspect.

[0020] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: by providing a first accommodating cavity adapted to the antibacterial device on the side of the air duct cover plate close to the freezer compartment, and providing a first air permeable structure for connecting the first accommodating cavity and the freezer compartment on the side of the accommodating cavity facing the freezer compartment, the air duct cover plate can store the antibacterial device through the first accommodating cavity, and act on the freezer compartment through the first air permeable structure, so that there is no need to provide the antibacterial device in the air cavity of the freezing air duct, avoiding the occupation of the space inside the freezing air duct, while maintaining the antibacterial conditions of the refrigerator, improving the circulation efficiency of the cold air, and ensuring the refrigeration efficiency. In addition, by constructing a second accommodating cavity adapted to the end of the drawer guide rail on the first accommodating cavity, the air duct cover plate can support the drawer guide rail through the second accommodating cavity. In summary, the air duct cover plate can store the antibacterial device through the first accommodating cavity without installing the drawer guide rail (French refrigerator), and can support the drawer guide rail through the second accommodating cavity when the drawer guide rail needs to be installed (cross refrigerator), that is, the embodiment of the present disclosure realizes the unification of the air duct cover plate structure in the two cases, and improves the versatility of the air duct cover plate.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 The figure is a schematic diagram of the structure of an air duct cover according to an exemplary embodiment.

[0024] Figure 2 It is a schematic structural diagram of a first accommodating cavity and a second accommodating cavity according to an exemplary embodiment.

[0025] Figure 3 It is a schematic structural diagram of an air duct cover assembly according to an exemplary embodiment.

[0026] Figure 4 It is a schematic diagram of the side structure of an air duct cover plate assembly according to an exemplary embodiment.

[0027] Figure 5 The figure is a schematic diagram showing a freezer compartment structure of a cross-air cooling refrigerator according to an exemplary embodiment.

[0028] Figure 6 is a schematic diagram showing a freezer compartment structure of a French air-cooled refrigerator according to an exemplary embodiment. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0030] In modern families, refrigerators play an important role as one of the essential household appliances. There are many types of refrigerators available on the market. Among them, French refrigerators and cross refrigerators have attracted much attention due to their popularity and versatility. The two mainly differ in the layout and structure of the freezer compartment. The freezer area of ​​a French refrigerator is generally designed with two layers of single drawers, which can directly put large food. The space is more spacious and transparent, which is conducive to quickly finding food and items; while the cross refrigerator is generally designed with three layers and six small drawers. Overall, there are more partitions, which is conducive to the detailed classification of stored food and items.

[0031] Due to the different layouts and structures of the freezer compartments, the designs of the drawer guides of French refrigerators and cross refrigerators cannot be unified. The drawer guides of the freezer compartment of a French refrigerator are usually set on both sides of the inner wall of the refrigerator freezer, while the cross refrigerator sets drawer guides in the middle of the freezer air duct cover to support the drawers on both sides, resulting in the structure of the air duct cover being different from that of the French refrigerator, affecting the universality of the freezer air duct cover between the French refrigerator and the cross refrigerator.

[0032] In addition, the freezer air duct cover is usually located between the freezer compartment and the freezer air duct of the refrigerator. The freezer air duct is mainly used to optimize the flow and distribution of cold air, usually by evenly delivering the cold air generated by the evaporator from the air outlet on the air duct cover to every corner of the freezer compartment to achieve a refrigeration effect. It is essential to maintain a constant low temperature inside the refrigerator, which helps to maintain the freshness and quality of food.

[0033] In the related art, in order to improve food safety and extend the shelf life of food in refrigerators, an antibacterial device is usually installed in the air cavity of the freezing air duct to inhibit the growth of bacteria and microorganisms and sterilize the frozen food. Specifically, the air duct cover is fixed with claws, or a gap is opened in the insulation material of the refrigerator to embed the antibacterial device. However, when an antibacterial device is installed in the freezing air duct, it will occupy the space inside the air duct, thereby increasing the resistance to air flow and affecting the circulation efficiency of cold air.

[0034] Therefore, the present disclosure provides an air duct cover, an air duct cover assembly, a freezer chamber structure and a refrigerator, which can support drawer rails while storing antibacterial devices, thereby improving the versatility of the air duct cover.

[0035] Next, the embodiments of the present disclosure are described in detail.

[0036] like Figure 1 As shown, Figure 1 1 is a schematic diagram of the structure of an air duct cover plate 10 according to an exemplary embodiment. The air duct cover plate 10 is provided with a first accommodating cavity 11 formed by being sunken from a side close to the freezing air duct to a side close to the freezing chamber, and the first accommodating cavity 11 is provided with a first air permeable structure 13 for connecting the first accommodating cavity 11 and the freezing chamber on the side facing the freezing chamber, and the first accommodating cavity 11 is adapted to an antibacterial device; the first accommodating cavity 11 is provided with a side plate on the side facing the freezing chamber, and the side plate and the bottom surface of the first accommodating cavity 11 on the side facing the freezing chamber form a second accommodating cavity 12, and the second accommodating cavity 12 is adapted to the end of the drawer rail.

[0037] In the embodiment of the present disclosure, a first accommodating cavity 11 adapted for an antibacterial device is provided on the air duct cover 10. The first accommodating cavity 11 is a local recessed area formed by recessing from a side close to the freezing air duct to a side close to the freezing chamber on the air duct cover 10, and is used to store the antibacterial device. A first air permeable structure 13 for connecting the first accommodating cavity 11 and the freezing chamber is provided on the side of the first accommodating cavity 11 in contact with the freezing chamber, so that the stored antibacterial device can act on the area of ​​the freezing chamber through the first air permeable structure 13, thereby achieving antibacterial effect in the freezing chamber.

[0038] Since the antibacterial device is additionally stored in the first accommodating chamber 11, the occupation of the internal space of the refrigeration air duct by the antibacterial device under normal circumstances is avoided, the circulation efficiency of the cold air can be improved, and the refrigeration efficiency can be ensured.

[0039] like Figure 1 As shown, the first accommodating cavity 11 is also provided with a side panel facing the freezer compartment. The side panel is combined with the bottom surface of the first accommodating cavity 11 facing the freezer compartment to form a new recessed area with an opening facing the freezer compartment, namely, the second accommodating cavity 12. The second accommodating cavity 12 is adapted to the end of the drawer guide rail in the freezer compartment, namely, the end of the drawer guide rail can be matched and connected with the side panel of the second accommodating cavity 12, so as to realize the support of the drawer guide rail by the second accommodating cavity 12.

[0040] In summary, when the air duct cover plate 10 provided in the embodiment of the present disclosure does not need to be installed with a drawer rail, that is, when it is used as the air duct cover plate 10 in the freezer compartment of a French refrigerator, the first accommodating cavity 11 provided can be used as a storage space for storing antibacterial devices. When the air duct cover plate 10 needs to be installed with a drawer rail, that is, when it is used as the air duct cover plate 10 in the freezer compartment of a cross refrigerator, the second accommodating cavity 12 provided can be used as a support to support the drawer rail so that it is fixed on the air duct cover plate 10, thereby achieving the unification of the structure of the air duct cover plate 10 in the French refrigerator and the cross refrigerator, that is, the air duct cover plate 10 provided in the embodiment of the present disclosure can be used for both the French refrigerator and the cross refrigerator, thereby improving the versatility of the air duct cover plate 10.

[0041] Figure 2 FIG. 1 is a schematic diagram showing the structure of the first accommodation cavity and the second accommodation cavity according to an exemplary embodiment. Figure 2 As shown, in the embodiment of the present disclosure, the shape of the first accommodating cavity 11 is a cuboid, one side of the cuboid is opened toward the freezing air duct, and the other sides are opened toward the freezing chamber, including the bottom surface and four side surfaces. In some other embodiments, the shape of the first accommodating cavity 11 can also be an irregular cube, which can be changed according to the form of the antibacterial device or the needs of those skilled in the art, and the present disclosure does not limit this.

[0042] In an exemplary embodiment, the first air-permeable structure 13 is located on the bottom surface or side surface of the first accommodating cavity 11 facing the freezing chamber. In some other embodiments, the first air-permeable structure 13 can also be arranged on both the bottom surface and side surface of the first accommodating cavity 11 facing the freezing chamber, which is not limited in the present disclosure.

[0043] In an exemplary embodiment, the first ventilation structure 13 includes ventilation holes. By using the ventilation holes as the first ventilation structure 13, the structure is simple, and the size, shape and layout of the ventilation holes can be flexibly determined according to specific needs and usage environment while maintaining the original strength of the first accommodating cavity 11, thereby optimizing the refrigeration efficiency and internal environment of the refrigerator to ensure the best performance and user experience.

[0044] In some other embodiments, other breathable structures may also be used, such as breathable films, mesh structures, etc., which are not limited in the present disclosure.

[0045] In an exemplary embodiment, the second accommodating cavity 12 is located in the middle of the air duct cover 10. By arranging the second accommodating cavity 12 in the middle of the air duct cover 10, the supported drawer rail is also located in the middle of the air duct cover 10, so that the sizes of the drawers on both sides of the drawer rail can be balanced and the layout of the internal space of the refrigerator can be optimized.

[0046] In some other embodiments, the position of the second accommodating cavity 12 can be changed according to food storage requirements, for example, it can be set on the left or right side of the air duct cover 10, so as to flexibly change the position, size, structure, etc. of the drawers on both sides, which is not limited in the present disclosure.

[0047] It should be pointed out that the duct cover plate in a conventional refrigeration duct cover plate assembly usually includes a duct front cover plate and a duct rear cover plate. The duct front cover plate is located at the front end of the duct, close to the side of the freezer, while the duct rear cover plate is located at the rear end of the duct, usually close to refrigeration components such as an evaporator or a compressor. Since the changes involved in the technical solution of the embodiment of the present disclosure only involve the duct front cover plate, the duct cover plate 10 in the embodiment of the present disclosure actually refers to the duct front cover plate in a conventional duct assembly. In the actual solution, the duct cover plate assembly includes a conventional duct rear cover plate in addition to the duct cover plate 10, but this is not described in detail in the embodiment of the present disclosure.

[0048] The embodiment of the present disclosure also provides an air duct cover assembly, such as Figure 3 As stated, Figure 3 It is a structural schematic diagram of an air duct cover assembly according to an exemplary embodiment, wherein the air duct cover assembly includes the air duct cover 10 as described in the above embodiment; and an antibacterial device 30, wherein the antibacterial device 30 is located in the first accommodating cavity 11; and a sealing sponge 31, wherein the sealing sponge 31 is attached to a side of the air duct cover 10 close to the refrigeration air duct to seal the first accommodating cavity 11.

[0049] In the embodiment of the present disclosure, the air duct cover assembly includes an air duct cover 10, an antibacterial device 30 and a sealing sponge 31. The antibacterial device 30 is stored in the first accommodating cavity 11 to achieve antibacterial of the freezer compartment. The sealing sponge 31 is attached to the side of the air duct cover 10 close to the freezing air duct and seals the first accommodating cavity 11.

[0050] In the disclosed embodiment, the air duct cover assembly is fixed to the box by buckles and screws. Since the evaporator or compressor of the refrigerator and other refrigeration components produce wet and cold air that enters the freezing air duct, water vapor will condense on the air duct cover, so a sealing sponge 31 made of a heat-insulating material is provided on the side of the air duct cover 10 close to the freezing air duct to insulate the air duct cover 10, prevent the exchange between cold and hot air, reduce the loss of cold air, and improve the energy efficiency of the refrigerator.

[0051] At the same time, since the sealing sponge 31 is close to refrigeration components such as the evaporator or compressor, the refrigeration components such as the evaporator or compressor can support the sealing sponge 31 so that the sealing sponge and the antibacterial device fit more closely, preventing the first accommodating cavity 11 from collapsing and shaking.

[0052] In addition, if Figure 4 As shown, Figure 4 is a schematic diagram of the side structure of an air duct cover assembly according to an exemplary embodiment. Figure 4 After the sealing sponge 31 is attached to the air duct cover 10, the first accommodating chamber 11 is sealed, and the first accommodating chamber 11 becomes a sealed chamber. In the related art, since the antibacterial device is usually placed in the refrigeration air duct, it is easy to accumulate the wet and cold air produced by refrigeration components such as the evaporator or the compressor, and there is a risk of freezing. In the embodiment of the present disclosure, the wet and cold air produced by the refrigeration components such as the evaporator or the compressor cannot enter the first accommodating chamber 11 due to the obstruction of the sealing sponge 31, avoiding the risk of the antibacterial device 30 freezing during refrigeration due to the accumulation of water vapor.

[0053] In an exemplary embodiment, the sealing sponge 31 is attached to the air duct cover plate by an adhesive. The sealing sponge 31 can be quickly assembled to the air duct cover plate 10, and the adhesive can fill the small gap between the sealing sponge 31 and the air duct cover plate 10, forming a good sealing effect and reducing cold air leakage. In some other embodiments, the sealing sponge 31 can also be attached to the air duct cover plate 10 by other methods such as mechanical fixing or slot embedding, which is not limited by the present disclosure.

[0054] In an exemplary embodiment, the antibacterial device 30 includes a porous sponge with a volatile antibacterial agent built in. By using a porous sponge with a volatile antibacterial agent built in, it can be continuously volatilized over a period of time to provide a long-lasting antibacterial effect. The volatile antibacterial agent can naturally volatilize into the air to achieve automatic antibacterial.

[0055] Since the air duct cover plate assembly includes the air duct cover plate of the above embodiment, anything that infringes upon the air duct cover plate in the above embodiment falls within the protection scope of the air duct cover plate assembly.

[0056] The embodiment of the present disclosure also provides a freezer compartment structure of a cross-air cooling refrigerator, such as Figure 5 As shown, Figure 5 It is a schematic diagram of a freezer compartment structure of a cross-air-cooled refrigerator according to an exemplary embodiment, wherein the freezer compartment structure of the cross-air-cooled refrigerator includes an air duct cover assembly as described in the above embodiment; and a drawer guide rail 51, wherein the end of the drawer guide rail 51 is adapted to the second accommodating cavity 12.

[0057] like Figure 5 As shown, in the freezer compartment of the cross-air cooling refrigerator, in order to realize the arrangement of drawers on both sides, a drawer guide 51 is added between the drawers on both sides, and the drawer guide 51 is fixed to the air duct cover. In the embodiment of the present disclosure, the end of the drawer guide can be connected with the side plate of the second accommodating cavity 12 to realize the support of the drawer guide 51 by the second accommodating cavity 12.

[0058] In an exemplary embodiment, the drawer guide 51 is a hollow structure, and the end of the drawer guide 51 is provided with a second air-permeable structure for connecting the first accommodating cavity 11 and the interior of the drawer guide 51, and the side wall of the drawer guide 51 is provided with a third air-permeable structure for connecting the interior of the drawer guide 51 and the freezer chamber.

[0059] By arranging a second air-permeable structure and a third air-permeable structure on the drawer guide 51, the first accommodating cavity 11 and the freezer compartment are connected, so that the antibacterial device stored in the first accommodating cavity 11 can act on the freezer compartment. While supporting the drawer guide 51 through the second accommodating cavity 12, the technical effect of storing the antibacterial device in the first accommodating cavity 11 to inhibit bacteria in the freezer compartment is maintained.

[0060] Since the freezer compartment structure of the cross air-cooled refrigerator includes the air duct cover assembly of the above embodiment, any infringement of the air duct cover assembly in the above embodiment falls within the protection scope of the freezer compartment structure of the cross air-cooled refrigerator.

[0061] The embodiment of the present disclosure also provides a freezer compartment structure of a French air-cooled refrigerator. Figure 6 is a schematic diagram of a freezer compartment structure of a French air-cooled refrigerator according to an exemplary embodiment. The freezer compartment structure of the French air-cooled refrigerator includes an air duct cover plate assembly as described in the above embodiment.

[0062] like Figure 6 As shown, due to the absence of drawer rails, the structure of the first accommodating cavity 11 can be directly displayed in the freezer compartment of the French air-cooled refrigerator. When the user opens the freezer compartment, the placement of the antibacterial device can be directly observed, providing an explicit appearance effect and realizing the externalization of the antibacterial device.

[0063] Since the freezer compartment structure of the French air-cooled refrigerator includes the air duct cover assembly of the above-mentioned embodiment, any infringement of the air duct cover assembly in the above-mentioned embodiment falls within the protection scope of the freezer compartment structure of the French air-cooled refrigerator.

[0064] An embodiment of the present disclosure further proposes to provide a refrigerator, comprising a freezer compartment structure of a cross-air cooling refrigerator or a freezer compartment structure of a French air cooling refrigerator as described in the above embodiments.

[0065] It should be pointed out that the freezer compartment structure provided in the embodiment of the present disclosure is only applicable to air-cooled refrigerators because it distributes and circulates cold air through air flow to achieve the purpose of refrigeration.

[0066] Since the refrigerator includes the freezer compartment structure of the cross-air-cooling refrigerator or the freezer compartment structure of the French-air-cooling refrigerator in the above-mentioned embodiment, anything that infringes upon the freezer compartment structure of the cross-air-cooling refrigerator or the freezer compartment structure of the French-air-cooling refrigerator in the above-mentioned embodiment falls within the protection scope of the refrigerator.

[0067] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: by setting a first accommodating cavity adapted to the antibacterial device on the side of the air duct cover plate close to the freezer compartment, and providing a first air permeable structure for connecting the first accommodating cavity and the freezer compartment on the side of the accommodating cavity facing the freezer compartment, the air duct cover plate can store the antibacterial device through the first accommodating cavity, and act on the freezer compartment through the air permeable structure, so that there is no need to set the antibacterial device in the air cavity of the freezing air duct, avoiding the occupation of the space inside the freezing air duct, while maintaining the antibacterial conditions of the refrigerator, improving the circulation efficiency of cold air and ensuring the refrigeration efficiency. In addition, by constructing a second accommodating cavity adapted to the end of the drawer guide rail on the first accommodating cavity, the air duct cover plate can support the drawer guide rail through the second accommodating cavity. In summary, the air duct cover plate can store the antibacterial device through the first accommodating cavity without installing the drawer guide rail (French refrigerator), and can support the drawer guide rail through the second accommodating cavity when the drawer guide rail needs to be installed (cross refrigerator), that is, the embodiment of the present disclosure realizes the unification of the air duct cover plate structure in the two cases, and improves the versatility of the air duct cover plate.

[0068] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure covers any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0069] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air duct cover, characterized in that: The air duct cover is provided with a first accommodating cavity formed by being sunken from a side close to the freezing air duct to a side close to the freezing chamber, the first accommodating cavity is provided with a first air permeable structure for connecting the first accommodating cavity and the freezing chamber on the side facing the freezing chamber, and the first accommodating cavity is adapted to be equipped with an antibacterial device; A side plate is provided on the first accommodating cavity on the side facing the freezing chamber, and the side plate and the bottom surface of the first accommodating cavity on the side facing the freezing chamber form a second accommodating cavity, and the second accommodating cavity is adapted to the end of the drawer guide rail.

2. The air duct cover according to claim 1, characterized in that: The first air-permeable structure is located on the bottom surface or the side surface of the first accommodating cavity facing the freezing chamber.

3. The air duct cover according to claim 1, characterized in that: The first air-permeable structure includes air holes.

4. The air duct cover according to claim 1, characterized in that: The second accommodating cavity is located in the middle of the air duct cover plate.

5. An air duct cover assembly, characterized in that: The air duct cover plate comprising any one of claims 1 to 4; and an antibacterial device, the antibacterial device being located in the first containing cavity; A sealing sponge is attached to a side of the air duct cover plate close to the freezing air duct to seal the first accommodating cavity.

6. The air duct cover assembly according to claim 5, characterized in that: The sealing sponge is adhered to the air duct cover plate by an adhesive.

7. The air duct cover assembly according to claim 5, characterized in that: The antibacterial device comprises a bursting sponge with a volatile antibacterial agent built in.

8. A freezing chamber structure of a cross-air cooling refrigerator, characterized in that: The air duct cover assembly comprising any one of claims 5 to 7; and A drawer guide rail, an end of which is adapted to the second accommodating cavity.

9. The freezing chamber structure of the cross-air cooling refrigerator according to claim 8, characterized in that: The drawer guide is a hollow structure, the end of the drawer guide is provided with a second air permeable structure for connecting the first accommodating cavity and the inside of the drawer guide, and the side wall of the drawer guide is provided with a third air permeable structure for connecting the inside of the drawer guide and the freezer compartment.

10. A freezer compartment structure of a French air-cooled refrigerator, characterized in that: It comprises the air duct cover plate assembly described in any one of claims 5-7.

11. A refrigerator, characterized in that: The invention comprises the freezer compartment structure of a cross-type air-cooling refrigerator or the freezer compartment structure of a French-type air-cooling refrigerator as described in claim 8 or 10.

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