Refrigerator

Abstract

The utility model discloses a refrigerator, refrigerator includes: box, air duct structure and layer frame structure. The box forms and holds the cavity, and the air duct structure is located in the box, and the layer frame structure is located in the holding cavity, and the layer frame structure includes first layer frame and second layer frame, and first layer frame and second layer frame define the air cavity, and the air cavity forms at least one air inlet and at least one air outlet, wherein, the air inlet is linked with the air duct structure, and the air inlet is along the first direction and takes in the wind, and the air outlet is along the second direction and takes out the wind, and the first direction and the second direction are different. Therefore, it is convenient for cold wind to flow from the air duct structure to the air inlet, then flow into the air cavity and flow out from the air outlet, change the air outlet direction of cold wind, increase the air outlet path of cold wind, avoid cold wind directly blowing to the food under the layer frame structure, reduce the wind speed of cold wind flowing to the food, thereby effectively reduce the loss of food moisture, it is convenient to keep the food moist, improve the moisture retention effect and reliability of the refrigerator.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator. Background Technology

[0002] In existing technologies, the cold air from refrigerators is usually blown directly onto food, causing the food to lose or evaporate moisture. The refrigerator's moisturizing effect is poor, which is not conducive to the preservation and storage of food. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of the present invention is to provide a refrigerator that can reduce the loss of moisture from food.

[0004] According to an embodiment of the present invention, the refrigerator includes: a cabinet, an air duct structure, and a shelf structure. The cabinet forms a receiving cavity. The air duct structure is disposed within the cabinet. The shelf structure is disposed within the receiving cavity. The shelf structure includes a first shelf and a second shelf, the first shelf and the second shelf defining an air outlet cavity. The air outlet cavity has at least one air inlet and at least one air outlet. The air inlet is connected to the air duct structure. The air inlet receives air along a first direction, and the air outlet discharges air along a second direction, wherein the first direction and the second direction are different.

[0005] According to the refrigerator of this utility model embodiment, by setting a shelf structure, the first shelf and the second shelf define the air outlet cavity, and the air inlet of the air outlet cavity is connected to the air duct structure, which facilitates the flow of cold air from the air duct structure to the air inlet, then into the air outlet cavity and out from the air outlet. This changes the direction of the cold air outlet, increases the cold air outlet path, avoids the cold air blowing directly onto the food below the shelf structure, reduces the wind speed of the cold air flowing towards the food, thereby effectively reducing the loss of food moisture, facilitating food humidification, and improving the humidification effect and reliability of the refrigerator.

[0006] In some embodiments, one of the first shelf and the second shelf is provided with at least one protrusion, the protrusion extending within the air cavity toward the other of the first shelf and the second shelf, the protrusion forming the air outlet, the air outlet being adapted to communicate with the air cavity and the receiving cavity.

[0007] This facilitates the flow of cold air in the second direction, increases the air outlet path of the cold air, reduces the wind speed of the cold air flowing from the air outlet to the receiving cavity, and reduces the loss of food moisture.

[0008] In some embodiments, the first shelf and the second shelf are arranged along the height direction of the housing, the first shelf is disposed on the side of the second shelf adjacent to the bottom of the housing, the protrusion is disposed on the first shelf, and the protrusion is configured to cause the airflow from the air inlet to the air cavity to flow toward the second shelf.

[0009] This serves to guide the flow of cold air within the air chamber. At the same time, it allows the cold air to naturally sink after contacting the second shelf and reach the food surface through the air outlet on the protrusion, effectively reducing the wind speed on the food surface and thus achieving a moisturizing effect.

[0010] In some embodiments, at least a portion of the first shelf is recessed toward the second shelf along the second direction to form the protrusion; and / or, the protrusion is located on the side of the first shelf adjacent to the second shelf, the protrusion forms the air outlet, and the air outlet passes through the protrusion and the first shelf along the second direction to communicate the air cavity and the receiving cavity.

[0011] This can improve the production efficiency and structural strength of the shelving structure, or increase the flexibility of the protrusion setting and reduce production costs.

[0012] In some embodiments, the outer peripheral surface of the protrusion smoothly transitions to the side surface of one of the first shelf and the second shelf adjacent to the other.

[0013] This reduces the resistance to the flow of cold air towards the second shelf in the second direction, while also reducing the risk of stress concentration at the connection between the protrusion and the first shelf, thus extending the service life of the shelf structure.

[0014] In some embodiments, the distance between the first shelf and the second shelf is H, and the height of the protrusion protruding from the side surface of the first shelf adjacent to the second shelf along the second direction is h, wherein H and h satisfy: 1 / 4H≤h≤1 / 3H.

[0015] This ensures that the cold air flowing into the air chamber from the air inlet flows towards the second shelf through the protrusion, allowing the cold air to naturally sink to the surface of the food, achieving a moisturizing effect, while reducing production costs.

[0016] In some embodiments, the first shelf includes: a shelf body and a first connecting structure, the shelf body and the second shelf defining the air cavity, the shelf body having the air inlet and the air outlet formed thereon; the first connecting structure is disposed at one end of the shelf body adjacent to the air inlet.

[0017] This facilitates the contact or abutment between the first connecting structure and the housing, thereby improving the sealing between the first shelf and the housing. It also facilitates the assembly of the shelf body and the second shelf at one end of the air duct structure adjacent to the first direction through the first connecting structure.

[0018] In some embodiments, the first shelf further includes a second connecting structure, the second connecting structure being disposed at the other end of the shelf body away from the first connecting structure, the second shelf being disposed opposite to the shelf body along the second direction, and the first connecting structure and the second connecting structure being connected to the shelf body and the second shelf respectively at both ends of the first direction.

[0019] This improves the assembly efficiency of the first shelf, facilitates the maintenance and replacement of the first and second connecting structures, and enhances the overall assembly efficiency and reliability of the shelf structure.

[0020] In some embodiments, there are multiple air outlets, and the distance between adjacent air outlets is L, wherein L satisfies: 20mm≤L≤25mm.

[0021] This allows for a reasonable arrangement of multiple air outlets, ensuring that cold air sinks to the surface of the food through the outlets, achieving a moisturizing effect and facilitating the preservation and storage of food.

[0022] In some embodiments, one of the first shelf and the second shelf is provided with a plurality of air outlet areas, the plurality of air outlet areas including a plurality of first air outlet areas and a plurality of second air outlet areas, the plurality of first air outlet areas and the plurality of second air outlet areas being spaced apart along a first direction, and the first air outlet areas and the second air outlet areas being provided with a plurality of air outlets respectively; the plurality of air outlets of the first air outlet areas and the plurality of air outlets of the second air outlet areas being staggered along the first direction; and / or, the plurality of air outlets of the first air outlet areas and the plurality of air outlets of the second air outlet areas being respectively arranged opposite to each other along the first direction.

[0023] This allows the cold air to be evenly guided to the second shelf after entering the air cavity, making the cold air that sinks to the food surface through the air outlet more uniform, or reducing the processing difficulty of multiple protrusions on the first shelf, thereby improving the production efficiency of the shelf structure.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a shelf structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the shelf structure according to an embodiment of the present utility model from another perspective; Figure 3 This is a schematic diagram of the shelving structure according to another perspective of an embodiment of the present utility model; Figure 4 This is a cross-sectional schematic diagram of the shelf structure according to an embodiment of the present utility model; Figure 5 This is a three-dimensional split view of the shelf structure according to an embodiment of the present utility model; Figure 6 This is a three-dimensional split view of the shelf structure according to an embodiment of the present utility model.

[0026] Figure label: 100. Shelf structure; 10. First shelf; 11. Shelf body; 12. First connecting structure; 13. Second connecting structure; 14. Air inlet; 15. Air outlet; 16. Second shelf; 17. Air cavity; 18. Protrusion; 19. Slot; 20. Air outlet area; 21. First air outlet area; 22. Second air outlet area; A. First direction; B. Second direction; C. Third direction. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-6 The refrigerator according to an embodiment of the present utility model includes: a cabinet, an air duct structure, and a shelf structure 100.

[0028] Specifically, such as Figures 1-3 As shown, the box body forms a receiving cavity; the air duct structure is disposed inside the box body; the shelf structure 100 is disposed inside the receiving cavity, the shelf structure 100 includes a first shelf 10 and a second shelf 16, the first shelf 10 and the second shelf 16 define an air outlet cavity 17, the air outlet 17 forms at least one air inlet 14 and at least one air outlet 15; wherein, the air inlet 14 is connected to the air duct structure, the air inlet 14 receives air along a first direction A, and the air outlet 15 discharges air along a second direction B, the first direction A and the second direction B are different.

[0029] The air duct structure is located inside the refrigerator. Since the first shelf 10 and the second shelf 16 in the shelf structure 100 together define the air cavity 17, and the air duct structure is connected to the air inlet 14 of the air cavity 17, the cold air cooled by the evaporator in the refrigerator can flow to the air inlet 14 through the air duct structure. The cold air enters the air cavity 17 along the first direction A, and then flows out of the air cavity 17 from the air outlet 15 along the second direction B, and flows to the receiving cavity below the shelf structure 100. The first direction A and the second direction B are perpendicular to each other. The cold air exchanges heat with the food in the receiving cavity, reducing the temperature of the receiving cavity. The hot air after heat exchange returns to the vicinity of the evaporator and is cooled again. This cycle repeats to maintain the stability of the temperature of the receiving cavity.

[0030] According to the refrigerator of this utility model embodiment, by setting a shelf structure 100, the first shelf 10 and the second shelf 16 define the air cavity 17, and the air inlet 14 of the air cavity 17 is connected to the air duct structure, so that cold air can flow from the air duct structure to the air inlet 14, then flow into the air cavity 17 and then flow out from the air outlet 15. This changes the direction of cold air outlet, increases the outlet path of cold air, avoids cold air blowing directly on the food below the shelf structure 100, reduces the wind speed of cold air flowing towards the food, thereby effectively reducing the loss of food moisture, facilitating food humidification, and improving the humidification effect and reliability of the refrigerator.

[0031] Optionally, the second shelf 16 is a glass plate.

[0032] According to some embodiments of this utility model, such as Figures 3-4 As shown, one of the first shelf 10 and the second shelf 16 is provided with at least one protrusion 18, which extends within the air cavity 17 toward the other of the first shelf 10 and the second shelf 16. The protrusion 18 forms an air outlet 15, which is adapted to connect the air cavity 17 and the receiving cavity.

[0033] Taking the first shelf 10 as an example, which has at least one protrusion 18, the protrusion 18 extends towards the second shelf 16 along the second direction B. The protrusion 18 forms an air outlet 15, which connects to the ventilation cavity 17 and the receiving cavity below the shelf structure 100. Cold air flows from the air duct structure to the air inlet 14 and into the air cavity 17, and then flows from the air outlet 15 to the receiving cavity below the shelf structure 100. Thus, by extending the protrusion 18 towards the other of the first shelf 10 and the second shelf 16 within the air cavity 17, when cold air flows into the air cavity 17, the protrusion 18 facilitates the flow of cold air in the second direction B, increases the air outlet path of the cold air, reduces the wind speed of the cold air flowing from the air outlet 15 to the receiving cavity, and reduces the loss of moisture from the food.

[0034] According to some embodiments of this utility model, such as Figure 1 and Figure 4As shown, the first shelf 10 and the second shelf 16 are arranged along the height direction of the box, i.e., the second direction B. The first shelf 10 is located on the side of the second shelf 16 near the bottom of the box. The protrusion 18 is located on the first shelf 10. The protrusion 18 is configured to allow the airflow from the air inlet 14 to the air cavity 17, i.e., the cold air, to flow towards the second shelf 16.

[0035] The second shelf 16 is located on the side of the first shelf 10 away from the bottom of the box along the second direction B. The first shelf 10 is provided with a protrusion 18. Cold air enters the air cavity 17 from the air inlet 14 along the first direction A. Since the protrusion 18 extends towards the second shelf 16 along the second direction B, the cold air flows towards the second shelf 16 along the second direction B after contacting the protrusion 18. After contacting the second shelf 16, the cold air sinks towards the first shelf 10 along the second direction B and sinks into the receiving cavity below the shelf structure 100 through the air outlet 15 on the protrusion 18, and sinks to the food surface.

[0036] Therefore, by having the protrusion 18 provided on the first shelf 10, the cold air in the air cavity 17 can flow towards the second shelf 16, which guides the flow of cold air in the air cavity 17. At the same time, it allows the cold air to sink naturally after contacting the second shelf 16 and reach the food surface through the air outlet 15 on the protrusion 18, effectively reducing the wind speed on the food surface and thus achieving a moisturizing effect.

[0037] According to some embodiments of this utility model, at least a portion of the first shelf 10 is recessed towards the second shelf 16 along the second direction B to form a protrusion 18. That is, the protrusion 18 and the first shelf 10 are integrally formed. In the second direction B, at least a portion of the surface of the first shelf 10 away from the second shelf 16 is recessed towards the second shelf 16 to form the protrusion 18, and the air outlet 15 penetrates the protrusion 18 along the second direction B and connects the ventilation cavity 17 and the receiving cavity. This improves the production efficiency and structural strength of the shelf structure 100, and enhances its reliability.

[0038] Optionally, the protrusion 18 and the first shelf 10 are separately provided. The protrusion 18 is located along the second direction B on the side of the first shelf 10 adjacent to the second shelf 16. The protrusion 18 forms an air outlet 15, which penetrates the protrusion 18 and the first shelf 10 along the second direction B, connecting the ventilation cavity 17 and the receiving cavity. This improves the flexibility of the protrusion 18's arrangement and reduces production costs.

[0039] Optionally, a portion of the protrusion 18 is integrally formed with the first shelf 10, while another portion of the protrusion 18 is separately formed from the first shelf 10.

[0040] According to some embodiments of this utility model, such as Figure 4As shown, the outer peripheral surface of the protrusion 18 smoothly transitions to the side surface of one of the first shelf 10 and the second shelf 16 adjacent to the other.

[0041] In this embodiment, the protrusion 18 is provided on the side surface of the first shelf 10 adjacent to the second shelf 16, and a smooth arc-shaped transition is formed between the outer peripheral side of the protrusion 18 adjacent to the first shelf 10 and the side surface of the first shelf 10 adjacent to the second shelf 16 along the second direction B. Therefore, through the design of a smooth transition between the outer peripheral surface of the protrusion 18 and the side surface of the first shelf 10 adjacent to the second shelf 16, when cold air flows along the first direction A towards the connection between the protrusion 18 and the first shelf 10, the resistance to the flow of cold air towards the second shelf 16 along the second direction B can be reduced. Simultaneously, the risk of stress concentration at the connection between the protrusion 18 and the first shelf 10 is reduced, extending the service life of the shelf structure 100.

[0042] According to some embodiments of the present invention, the distance between the first shelf 10 and the second shelf 16 is H, and the height of the protrusion 18 protruding from the surface of the first shelf 10 adjacent to the second shelf 16 along the second direction B is h, where H and h satisfy: 1 / 4H≤h≤1 / 3H.

[0043] When h is less than 1 / 4H, the height of the protrusion 18 protruding from the surface of the first shelf 10 adjacent to the second shelf 16 along the second direction B is too small, which may prevent the cold air flowing into the air cavity 17 from the air inlet 14 from flowing towards the second shelf 16 through the protrusion 18; when h is greater than 1 / 3H, the height of the protrusion 18 protruding from the surface of the first shelf 10 adjacent to the second shelf 16 along the second direction B is too large, which may increase production costs. For example, h = 1 / 4H.

[0044] Therefore, by limiting the height range of the protrusion 18 protruding from the surface of the first shelf 10 adjacent to the second shelf 16 along the second direction B, it can be ensured that the cold air flowing into the air cavity 17 from the air inlet 14 flows towards the second shelf 16 through the protrusion 18, so that the cold air naturally sinks to the surface of the food to achieve a moisturizing effect, while reducing production costs.

[0045] According to some embodiments of this utility model, such as Figure 4 As shown, the first shelf 10 includes: a shelf body 11 and a first connecting structure 12. The shelf body 11 and the second shelf 16 define an air outlet cavity 17. An air inlet 14 and an air outlet 15 are formed on the shelf body 11. The first connecting structure 12 is located at one end of the shelf body 11 adjacent to the air inlet 14.

[0046] The second shelf 16 is disposed along the second direction B on the side of the shelf body 11 away from the bottom of the box, and the second shelf 16 and the shelf body 11 together define the air outlet cavity 17. An air inlet 14 is formed at one end of the shelf body 11 along the first direction A adjacent to the air duct structure, and an air outlet 15 is formed on the surface of the shelf body 11 along the second direction B away from the second shelf 16. The first connecting structure 12 is disposed at one end of the shelf body 11 along the first direction A adjacent to the air duct structure, and the first connecting structure 12 extends along the third direction C.

[0047] Therefore, by placing the first connecting structure 12 at one end of the shelf body 11 near the air inlet 14, it is convenient for the first connecting structure 12 to contact or stop with the box, thereby improving the sealing between the first shelf 10 and the box. At the same time, it is convenient for the shelf body 11 and the second shelf 16 to be assembled at one end of the air duct structure along the first direction A through the first connecting structure 12.

[0048] Optionally, combined Figure 1 The shelf body 11 has two air inlets 14 at one end of the air duct structure adjacent to the first direction A, and the two air inlets 14 are spaced apart along the third direction C.

[0049] According to some embodiments of this utility model, such as Figure 4 As shown, the first shelf 10 further includes a second connecting structure 13, which is located at the other end of the shelf body 11 away from the first connecting structure 12. The second shelf 16 is arranged opposite to the shelf body 11 along the second direction B. The first connecting structure 12 and the second connecting structure 13 are connected to the shelf body 11 and the second shelf 16 at their respective ends in the first direction A.

[0050] The second connecting structure 13 is located at the end of the shelf body 11 away from the air duct structure along the first direction A, and extends along the third direction C. The first connecting structure 12 and the second connecting structure 13 are detachably connected to both ends of the shelf body 11 along the first direction A by snap-fit ​​connections, thereby realizing the assembly of the first shelf 10. Figure 6 The first connecting structure 12 and the second connecting structure 13 are respectively formed with slots 19. The two ends of the second shelf 16 along the first direction A are respectively engaged with the slots 19 on the first connecting structure 12 and the second connecting structure 13, thereby realizing the assembly of the second shelf 16 and the first shelf 10.

[0051] Therefore, by connecting the first connecting structure 12 and the second connecting structure 13 to the shelf body 11 and the second shelf 16 at both ends of the first direction A, the assembly efficiency of the first shelf 10 is improved, and the maintenance and replacement of the first connecting structure 12 and the second connecting structure 13 are facilitated. At the same time, the assembly efficiency between the first shelf 10 and the second shelf 16 is improved, and the air cavity 17 is formed between the second shelf 16 and the shelf body 11, thereby improving the overall assembly efficiency and assembly reliability of the shelf structure 100.

[0052] According to some embodiments of this utility model, there are multiple air outlets 15, and the distance between adjacent air outlets 15 is L, where L satisfies: 20mm≤L≤25mm.

[0053] Combination Figure 3 The shelf body 11 has multiple protrusions 18 and multiple air outlets 15. When the distance between adjacent air outlets 15 is less than 20mm, the distance between adjacent air outlets 15 is too small, which may cause the air outlets 15 to be arranged too densely. The cold air at adjacent air outlets 15 may interfere with each other, affecting the cold air from sinking to the food surface through the air outlets 15. When the distance between adjacent air outlets 15 is greater than 25mm, the distance between adjacent air outlets 15 is too large, which may cause the air outlets 15 to be arranged too sparsely, resulting in a small number of air outlets 15 and affecting the refrigeration effect on food. For example, L=22mm.

[0054] Therefore, by limiting the spacing between adjacent air outlets 15, the refrigeration effect on food is ensured while the multiple air outlets 15 are arranged reasonably, avoiding the air outlets 15 being too dense or too sparse, and avoiding mutual interference of cold air at adjacent air outlets 15. This ensures that the cold air sinks to the surface of the food through the air outlets 15, achieving a moisturizing effect and facilitating the preservation and storage of food.

[0055] According to some embodiments of this utility model, such as Figure 3 As shown, one of the first shelf 10 and the second shelf 16 is provided with multiple air outlet areas 20. The multiple air outlet areas 20 include multiple first air outlet areas 21 and multiple second air outlet areas 22. The multiple first air outlet areas 21 and multiple second air outlet areas 22 are arranged at intervals along the first direction A. The first air outlet areas 21 and the second air outlet areas 22 are respectively provided with multiple air outlets 15.

[0056] In this embodiment, the first shelf 10 is provided with multiple air outlet areas 20. Multiple first air outlet areas 21 and multiple second air outlet areas 22 are arranged alternately along a first direction A. Multiple protrusions 18 of the first air outlet area 21 and corresponding air outlets 15 on the protrusions 18, and multiple protrusions 18 of the second air outlet area 22 and corresponding air outlets 15 on the protrusions 18 are all arranged at intervals along a third direction C within their respective areas. Combined with... Figure 3 The multiple protrusions 18 of the first air outlet area 21 and the multiple protrusions 18 of the second air outlet area 22 are staggered along the first direction A, so that the corresponding air outlets 15 on the multiple protrusions 18 of the first air outlet area 21 and the corresponding air outlets 15 on the multiple protrusions 18 of the second air outlet area 22 are staggered along the first direction A. Therefore, by staggering the multiple air outlets 15 of the first air outlet area 21 and the multiple air outlets 15 of the second air outlet area 22 along the first direction A, the cold air entering the air cavity 17 can be evenly guided to the second shelf 16, thereby making the cold air falling to the food surface through the air outlets 15 more uniform.

[0057] Optionally, combined Figure 5 The multiple protrusions 18 of the first air outlet area 21 and the multiple protrusions 18 of the second air outlet area 22 are arranged opposite each other along the first direction A, so that the corresponding air outlets 15 on the multiple protrusions 18 of the first air outlet area 21 and the corresponding air outlets 15 on the multiple protrusions 18 of the second air outlet area 22 are arranged opposite each other along the first direction A. This reduces the processing difficulty of the multiple protrusions 18 on the first shelf 10 and improves the production efficiency of the shelf structure 100.

[0058] Optionally, a portion of the protrusions 18 in the first air outlet region 21 and a portion of the protrusions 18 in the second air outlet region 22 are offset along the first direction A, while another portion of the protrusions 18 in the first air outlet region 21 and another portion of the protrusions 18 in the second air outlet region 22 are arranged opposite to each other along the first direction A.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] In the description of this utility model, "first feature" and "second feature" may include one or more of the features. In the description of this utility model, "multiple" means two or more. In the description of this utility model, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. In the description of this utility model, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigerator, characterized in that, include: The housing has a receiving cavity; The air duct structure is disposed inside the box; A shelf structure is disposed within the receiving cavity. The shelf structure includes a first shelf and a second shelf, the first shelf and the second shelf defining an air outlet cavity, the air outlet cavity having at least one air inlet and at least one air outlet. The air inlet is connected to the air duct structure, the air inlet draws in air along a first direction, and the air outlet discharges air along a second direction, wherein the first direction and the second direction are different.

2. The refrigerator according to claim 1, characterized in that, One of the first shelf and the second shelf is provided with at least one protrusion, the protrusion extending within the air cavity toward the other of the first shelf and the second shelf. The protrusion forms the air outlet, which is adapted to connect the air cavity and the receiving cavity.

3. The refrigerator according to claim 2, characterized in that, The first shelf and the second shelf are arranged along the height direction of the box body. The first shelf is located on the side of the second shelf adjacent to the bottom of the box body. The protrusion is provided on the first shelf. The protrusion is configured to cause the airflow from the air inlet to the air cavity to flow toward the second shelf.

4. The refrigerator according to claim 2, characterized in that, At least a portion of the first shelf is recessed toward the second shelf along the second direction to form the protrusion; and / or, The protrusion is located on the side of the first shelf adjacent to the second shelf, and the protrusion forms the air outlet. The air outlet passes through the protrusion and the first shelf along the second direction, connecting the air cavity and the receiving cavity.

5. The refrigerator according to claim 2, characterized in that, The outer peripheral surface of the protrusion smoothly transitions to the side surface of one of the first shelf and the second shelf adjacent to the other.

6. The refrigerator according to claim 2, characterized in that, The distance between the first shelf and the second shelf is H, and the height of the protrusion protruding from the surface of the first shelf adjacent to the second shelf along the second direction is h. H and h satisfy: 1 / 4H≤h≤1 / 3H.

7. The refrigerator according to claim 1, characterized in that, The first shelf includes: A shelf body, the shelf body and the second shelf defining the air cavity, the shelf body having the air inlet and the air outlet formed thereon; The first connection structure is located at one end of the shelf body adjacent to the air inlet.

8. The refrigerator according to claim 7, characterized in that, Also includes: The second connecting structure is located at the other end of the shelf body away from the first connecting structure. The second shelf and the shelf body are arranged opposite to each other along the second direction. The first connecting structure and the second connecting structure are respectively connected to the shelf body and the second shelf at both ends of the first direction.

9. The refrigerator according to claim 1, characterized in that, There are multiple air outlets, and the distance between adjacent air outlets is L, where L satisfies: 20mm≤L≤25mm.

10. The refrigerator according to any one of claims 1-9, characterized in that, One of the first shelf and the second shelf is provided with multiple air outlet areas, the multiple air outlet areas include multiple first air outlet areas and multiple second air outlet areas, the multiple first air outlet areas and multiple second air outlet areas are spaced apart along a first direction, and the first air outlet area and the second air outlet area are respectively provided with multiple air outlets; The plurality of air outlets in the first air outlet area and the plurality of air outlets in the second air outlet area are staggered along the first direction; and / or, The plurality of air outlets in the first air outlet area and the plurality of air outlets in the second air outlet area are respectively arranged opposite to each other along the first direction.

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