Refrigeration apparatus

Abstract

The present application provides a refrigeration apparatus, comprising: a housing, a drawer, and a moisture permeable structure, wherein refrigerated air supply ports are formed on a refrigeration compartment; air return ports are formed on a fresh-keeping compartment; a first spacing is formed between the moisture permeable structure and the inner wall of the fresh-keeping compartment; each refrigerated air supply port is communicated with the corresponding air return port by means of the first spacing. In the refrigeration apparatus provided by the present application, the first spacing is formed between the moisture permeable structure and the fresh-keeping compartment, so that airflow entering the refrigeration compartment only can flow to the air return ports by means of the first spacing, and the moisture accumulated on the moisture permeable structure is taken away by using the airflow, thereby destroying moisture accumulation on the surface of the moisture permeable structure, establishing a dynamically stable internal and external humidity differential environment, keeping the moisture permeable effect of the moisture permeable structure, further ensuring the fresh-keeping effect of the refrigeration apparatus, and improving the use experience of a user.

Description

Refrigeration equipment

[0001] This application is based on and claims priority to application No. 202411439386.6, filed on October 15, 2024, entitled "Refrigeration Equipment", the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0002] This application relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Technology

[0003] As people's demands for quality of life and living standards increase, their requirements for diversified and personalized food storage at home are also growing stronger. In the current refrigerator market, most products still use traditional fruit and vegetable drawer layouts without special preservation functions in their refrigerator compartments. Although these drawers are sometimes labeled with terms like "freshness preservation," they do not actually provide special preservation functions, thus failing to meet consumers' growing demand for long-term preservation of fruits and vegetables.

[0004] While existing technologies include methods for regulating humidity using moisture-permeable membranes, which can permeate moisture from the inside out and maintain stable humidity under high humidity conditions, the moisture permeation effect decreases as water molecules accumulate on the outer side of the membrane during the permeation process. This results in the membrane being unable to perform its permeation function after a certain period of operation, thus failing to regulate humidity and severely impacting the refrigerator's preservation and storage performance as well as the user experience. Summary of the Invention

[0005] To address the technical problem of unreliable humidity control in existing refrigerators affecting preservation performance and user experience, a refrigeration device is provided that utilizes airflow circulation between the refrigerator compartment and the fresh-keeping compartment through a moisture-permeable structure to ensure the working efficiency of the moisture-permeable structure and improve user experience.

[0006] A refrigeration device, comprising:

[0007] The shell contains a refrigeration compartment and a fresh-keeping compartment.

[0008] A drawer, wherein the drawer is disposed within the preservation room;

[0009] A moisture-permeable structure is provided on the drawer, and the interior of the drawer is connected to the fresh-keeping compartment through the moisture-permeable structure;

[0010] The refrigerated compartment is provided with a refrigerated air supply vent, the fresh-keeping compartment is provided with a return air vent, the moisture-permeable structure has a first gap between it and the inner wall of the fresh-keeping compartment, and the refrigerated air supply vent is connected to the return air vent through the first gap.

[0011] The refrigeration equipment also includes an air duct plate, which is disposed inside the housing. Part of the air duct plate forms the back panel of the refrigeration compartment, and part of the air duct plate forms the back panel of the fresh-keeping compartment. The refrigeration air supply outlet and the air return outlet are both disposed on the air duct plate.

[0012] The refrigeration equipment also includes a partition plate, which is disposed on the air duct plate. The first side of the partition plate forms the side wall of the refrigeration compartment, and the second side of the partition plate forms the side wall of the fresh-keeping compartment. The first gap is formed between the drawer and the partition plate, and the moisture-permeable structure is disposed on the side wall of the drawer facing the partition plate.

[0013] The housing has an opening, and there is a second gap between the partition plate and the opening. The refrigerated air supply outlet is connected to the return air outlet through the second gap and the first gap in sequence.

[0014] The refrigeration equipment also includes a drawer cover, which is fastened to the drawer. The divider is located above the drawer, and the gap is formed between the drawer cover and the divider. The moisture-permeable structure is provided on the drawer cover.

[0015] The shell also contains a variable temperature chamber, which is relatively sealed to the refrigeration chamber and the fresh-keeping chamber, and the air circulation volume in the variable temperature chamber is adjustable.

[0016] A refrigeration air duct is also formed inside the shell, and a variable temperature air outlet is provided on the variable temperature chamber. Both the refrigeration air outlet and the variable temperature air outlet are connected to the refrigeration air duct.

[0017] The refrigeration equipment also includes an adjustment mechanism, which is located at the variable temperature air outlet and can adjust the flow area of ​​the variable temperature air outlet.

[0018] The first spacing ranges from 10mm to 25mm.

[0019] The refrigeration equipment includes a refrigerator.

[0020] The fresh-keeping compartment and the variable-temperature compartment are arranged side by side along the width of the shell and are located below the refrigeration compartment.

[0021] The refrigeration equipment also includes an air duct plate and a partition plate. The air duct plate is disposed inside the housing, and the partition plate is disposed on the air duct plate. A baffle is provided between the fresh-keeping compartment and the variable-temperature compartment, and the edge of the baffle is sealed to the partition plate, the air duct plate and the inner wall of the housing.

[0022] The refrigeration equipment also includes an air duct plate, which is disposed inside the housing. Part of the air duct plate forms the back plate of the temperature-changing chamber. The temperature-changing air supply port and the temperature-changing chamber return air port are both disposed on the air duct plate.

[0023] The moisture-permeable structure is a moisture-permeable membrane.

[0024] The refrigeration equipment also includes an air duct plate, which is disposed inside the housing. The air duct plate includes a first part of the plate, which forms the back panel of the cold storage compartment. The cold storage air outlet is disposed on the first part of the plate.

[0025] The refrigeration equipment also includes an air duct plate, which is disposed inside the housing. The air duct plate includes a second part of the plate, which forms the back panel of the preservation compartment. The return air vent is disposed on the second part of the plate.

[0026] The housing also forms a variable temperature chamber, which is relatively sealed to the refrigeration chamber and the fresh-keeping chamber. The variable temperature chamber is provided with a variable temperature air outlet, and both the refrigeration air outlet and the variable temperature air outlet are connected to the refrigeration air duct. The refrigeration equipment also includes an air duct plate, which is disposed in the housing. The air duct plate includes a third part of the plate, which constitutes the back plate of the variable temperature chamber. The variable temperature air outlet is disposed on the third part of the plate.

[0027] The air duct plate divides the interior of the housing into a cooling chamber and a storage chamber. An evaporator structure is provided in the cooling chamber to generate cold air.

[0028] The refrigeration equipment also includes a partition plate disposed on the air duct plate, which divides the storage cavity into the refrigeration compartment and the fresh-keeping compartment.

[0029] The adjustment mechanism is movably arranged along a predetermined trajectory to block or avoid the variable temperature air outlet. By adjusting the blocking area of ​​the variable temperature air outlet by the adjustment mechanism, the flow area of ​​the variable temperature air outlet is adjusted.

[0030] The refrigeration equipment provided in this application forms a first gap between the permeable structure and the fresh-keeping compartment, so that the airflow entering the cold storage compartment can only flow through the first gap to the return air vent. This part of the airflow is used to carry away the moisture accumulated on the permeable structure, destroy the humidity accumulation on the surface of the permeable structure, establish a dynamically stable internal and external humidity difference environment, maintain the permeability of the permeable structure, and thus ensure the fresh-keeping effect of the refrigeration equipment and improve the user experience. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the structure of the refrigeration equipment provided in an embodiment of this application;

[0032] Figure 2 is another structural schematic diagram of the refrigeration equipment provided in an embodiment of this application;

[0033] Figure 3 is a partial schematic diagram of the refrigeration equipment provided in an embodiment of this application;

[0034] Figure 4 is a diagram showing the gas flow direction in the refrigeration compartment and the fresh food compartment of the refrigeration equipment provided in the embodiment of this application;

[0035] Figure 5 is a schematic diagram of the structure of the variable temperature air outlet provided in the embodiment of this application;

[0036] In the picture:

[0037] 1. Shell; 11. Refrigerated compartment; 12. Fresh-keeping compartment; 2. Drawer; 3. Moisture-permeable structure; 13. Refrigerated air outlet; 14. Return air outlet; 15. First gap; 4. Air duct plate; 5. Divider plate; 16. Second gap; 17. Variable temperature compartment; 18. Variable temperature air outlet; 6. Adjustment mechanism. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application.

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] While existing technologies include methods for regulating humidity using moisture-permeable membranes, which can permeate moisture from the inside out and maintain stable humidity under high humidity conditions, the moisture permeation effect decreases as water molecules accumulate on the outer side of the membrane during the permeation process. This results in the membrane being unable to perform its permeation function after a certain period of operation, thus failing to regulate humidity and severely impacting the refrigerator's preservation and storage performance as well as the user experience.

[0044] Therefore, this application provides a refrigeration device as shown in Figures 1 to 5, comprising: a housing 1, wherein a refrigeration compartment 11 and a fresh-keeping compartment 12 are formed within the housing 1; a drawer 2, wherein the drawer 2 is disposed within the fresh-keeping compartment 12; a moisture-permeable structure 3, wherein the moisture-permeable structure 3 is disposed on the drawer 2, and the interior of the drawer 2 is connected to the fresh-keeping compartment 12 through the moisture-permeable structure 3; a refrigeration air inlet 13 is provided on the refrigeration compartment 11, and a return air inlet 14 is provided on the fresh-keeping compartment 12; a first gap 15 is formed between the moisture-permeable structure 3 and the inner wall of the fresh-keeping compartment 12, and the refrigeration air inlet 13 is connected to the return air inlet 14 through the first gap 15. A first gap 15 is formed between the permeable structure 3 and the fresh-keeping compartment 12, so that the airflow entering the cold storage compartment 11 can only flow through the first gap 15 to the return air vent 14. This part of the airflow is used to carry away the moisture accumulated on the permeable structure 3, destroy the humidity accumulation on the surface of the permeable structure 3, establish a dynamic and stable internal and external humidity difference environment, maintain the permeability of the permeable structure 3, thereby ensuring the fresh-keeping effect of the refrigeration equipment and improving the user experience.

[0045] When the refrigeration equipment is working, the cold air in the refrigeration duct inside the housing 1 can be sent into the refrigeration compartment 11 through the refrigeration air inlet 13, thereby achieving the refrigeration effect of the refrigeration compartment 11. Since the return air inlet 14 is located on the fresh-keeping compartment 12, the gas entering the refrigeration compartment 11 can only flow into the fresh-keeping compartment 12 and return to the refrigeration duct through the return air inlet 14, realizing gas circulation. Since there is a first gap 15 between the moisture permeable structure 3 and the fresh-keeping compartment 12, the gas flowing towards the return air inlet 14 can only flow through the first gap 15. At the same time, the moisture permeable structure 3 can gather the moisture in the drawer 2 towards the first gap 15 side. The gas flowing from the first gap 15 can carry away the moisture gathered on the moisture permeable structure 3, destroy the humidity accumulation on the surface of the moisture permeable structure 3, establish a dynamically stable internal and external humidity difference environment, maintain the moisture permeability of the moisture permeable structure 3, thereby ensuring the fresh-keeping effect of the refrigeration equipment and improving the user experience.

[0046] The refrigeration equipment also includes an air duct plate 4, which is disposed inside the housing 1. Part of the air duct plate 4 forms the back panel of the refrigeration compartment 11, and part of the air duct plate 4 forms the back panel of the fresh-keeping compartment 12. The refrigeration air inlet 13 and the return air inlet 14 are both disposed on the air duct plate 4. The air duct plate 4 divides the interior of the housing 1 into a refrigeration chamber and a storage chamber. The storage chamber forms the refrigeration compartment 11 and the fresh-keeping compartment 12. The refrigeration chamber is equipped with an evaporator and other structures for refrigeration, thereby generating cold air to cool the refrigerated compartment. Both the air inlet 13 and the return air inlet 14 are located on the air duct plate 4 to facilitate the exchange of gas between the refrigeration chamber and the storage chamber, thereby achieving refrigeration of the refrigeration compartment 11 and the fresh-keeping compartment 12. At the same time, the refrigeration air inlet 13 and the return air inlet 14 are both located on the air duct plate 4, which further restricts the flow direction of gas in the refrigeration compartment 11 and the fresh-keeping compartment 12, ensuring that gas can only flow through the first gap 15, thereby ensuring the moisture permeability of the moisture permeability structure 3 and the fresh-keeping effect of the refrigeration equipment, and improving the user experience.

[0047] The refrigeration equipment also includes a partition plate 5, which is disposed on the air duct plate 4. The first side of the partition plate 5 forms the side wall of the refrigeration compartment 11, and the second side of the partition plate 5 forms the side wall of the fresh-keeping compartment 12. A first gap 15 is formed between the drawer 2 and the partition plate 5, and the moisture-permeable structure 3 is disposed on the side wall of the drawer 2 facing the partition plate 5. The partition plate 5 is used to divide the storage cavity to form the refrigeration compartment 11 and the fresh-keeping compartment 12, thereby separating the internal space of the refrigeration equipment. At the same time, the first gap 15 formed between the partition plate 5 and the drawer 2 facilitates the pulling out of the drawer 2. Meanwhile, the drawer 2 is fitted against the other side walls of the fresh-keeping compartment 12, thereby restricting airflow to only pass through the first gap 15, thus ensuring the moisture permeability of the moisture-permeable structure 3, the fresh-keeping effect of the refrigeration equipment, and improving the user experience.

[0048] The housing 1 has an opening, allowing users to store items in the refrigerator compartment 11 and pull out the drawer 2. A second gap 16 exists between the partition 5 and the opening. The refrigerator air inlet 13 connects to the return air inlet 14 via the second gap 16 and the first gap 15. The second gap 16 ensures communication between the refrigerator compartment 11 and the fresh-keeping compartment 12. The refrigerator air inlet 13 is located at the back of the refrigerator compartment 11, allowing airflow to enter from the back and flow towards the opening. It then flows into the fresh-keeping compartment 12 through the second gap 16. Since the return air inlet 14 is located at the back of the fresh-keeping compartment 12, the airflow must also flow towards the back of the fresh-keeping compartment 12. Due to the constraints of the drawer 2 and the partition 5, the airflow can only pass through the first gap 15, further restricting airflow through the moisture-permeable structure 3. This ensures the moisture permeability of the moisture-permeable structure 3, the fresh-keeping effect of the refrigeration equipment, and improves the user experience.

[0049] The refrigeration equipment also includes a drawer lid, which is fastened to the drawer 2. The divider 5 is located above the drawer 2, and the gap is formed between the drawer lid and the divider 5. The moisture-permeable structure 3 is disposed on the drawer lid. By fastening the drawer lid to the drawer 2, the internal space of the drawer 2 is relatively sealed. Gas and cold air between the drawer 2 and the freshness compartment 12 can only be transferred through the moisture-permeable structure 3, so that moisture in the drawer 2 can only be discharged through the moisture-permeable structure 3, keeping the humidity inside the drawer 2 within a preset range and ensuring the freshness preservation effect of the drawer 2.

[0050] Furthermore, a variable temperature chamber 17 is formed within the housing 1. This variable temperature chamber 17 is relatively sealed to both the refrigeration chamber 11 and the fresh-keeping chamber 12, and the airflow within the variable temperature chamber 17 is adjustable. Since the amount of cold air generated by the refrigeration equipment is constant, adjusting the airflow within the variable temperature chamber 17 allows for the regulation of the airflow in the refrigeration chamber 11, thereby adjusting the airflow at the first gap 15. This regulates the humidity control efficiency of the moisture-permeable structure 3, achieving the goal of controllable humidity control inside the drawer 2.

[0051] Specifically, a cooling air duct is formed inside the housing 1. This cooling air duct can be formed together with the housing 1 by the air duct plate 4. A variable temperature air outlet 18 is provided on the variable temperature chamber 17. Both the refrigeration air outlet 13 and the variable temperature air outlet 18 are connected to the cooling air duct. The variable temperature chamber 17 and the refrigeration chamber 11 simultaneously draw cold air from the cooling air duct. Since the amount of cold air in the cooling air duct is constant, the air volume delivered by the refrigeration air outlet 13 can be adjusted by adjusting the circulating air volume of the variable temperature chamber 17. This, in turn, adjusts the gas flow rate passing through the first gap 15 to regulate the ability to remove moisture from the moisture-permeable structure 3, thereby adjusting the humidity regulation efficiency of the moisture-permeable structure 3 and achieving the purpose of controllable regulation of the humidity inside the drawer 2. For example, when the airflow of the variable temperature chamber 17 is increased, the airflow of the refrigerated air outlet 13 decreases, the gas flow rate at the first gap 15 decreases, the moisture carried away from the moisture permeable structure 3 decreases, and the moisture permeability of the moisture permeable structure 3 to the drawer 2 decreases; while when the airflow of the variable temperature chamber 17 is decreased, the airflow of the refrigerated air outlet 13 increases, the gas flow rate at the first gap 15 increases, the moisture carried away from the moisture permeable structure 3 increases, and the moisture permeability of the moisture permeable structure 3 to the drawer 2 increases, ultimately maintaining the humidity of the drawer 2 within the preset range, ensuring the preservation effect of the refrigeration equipment, and improving the user experience.

[0052] The refrigeration equipment also includes an adjustment mechanism 6, which is movably arranged along a predetermined trajectory. The adjustment mechanism 6 is located at the variable temperature air outlet 18 and can adjust the flow area of ​​the variable temperature air outlet 18. By using the adjustment mechanism 6 to block the variable temperature air outlet 18, the flow area of ​​the variable temperature air outlet 18 can be adjusted, thereby adjusting the circulating air volume of the variable temperature chamber 17 and the air volume at the first gap 15. This achieves the linkage control of the variable temperature and humidity regulation of the refrigeration equipment, ensuring that the refrigeration equipment can achieve the optimal refrigeration and preservation effect.

[0053] In one embodiment, the adjusting mechanism 6 is a plate that is slidably disposed at the variable temperature air outlet 18.

[0054] The value of the first spacing 15 ranges from 10mm to 25mm. When designing the value of the first spacing 15, the air volume and flow rate of the refrigeration equipment can be simulated and analyzed after setting the first spacing 15. The humidity curves inside the drawer 2 and above the moisture-permeable structure 3 can be detected simultaneously. By testing at different heights, the optimal value of the first spacing 15 can be obtained, which can also ensure that the linkage between temperature regulation and humidity regulation achieves the best effect.

[0055] As shown in Figure 1, the fresh-keeping compartment 12 and the variable-temperature compartment 17 are arranged side by side along the width direction of the shell 1 and are both located below the refrigeration compartment 11. A baffle is provided between the fresh-keeping compartment 12 and the variable-temperature compartment 17. The edge of the baffle is sealed with the partition plate 5, the air duct plate 4 and the inner wall of the shell 1 to ensure the sealing effect of the variable-temperature compartment 17. At the same time, part of the air duct plate 4 forms the back plate of the variable-temperature compartment 17, and the variable-temperature air supply port 18 and the return air port 14 of the variable-temperature compartment 17 are both provided on the air duct plate 4 to achieve the cooling effect of the variable-temperature compartment 17. Moreover, since the flow area of ​​the variable-temperature air supply port 18 is adjustable, the temperature regulation of the variable-temperature compartment 17 can be guaranteed.

[0056] The moisture-permeable structure 3 is a moisture-permeable membrane. The airflow within the first gap 15 can flow over the surface of the moisture-permeable membrane, thereby carrying away the moisture on the surface of the moisture-permeable membrane. This allows the moisture-permeable membrane to continue to collect moisture in the drawer 2 on the other side, achieving the purpose of regulating the humidity in the drawer 2.

[0057] The refrigeration equipment includes a refrigerator.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A refrigeration appliance characterized by: include: The shell (1) has a refrigeration compartment (11) and a fresh-keeping compartment (12) formed inside the shell (1); Drawer (2), wherein the drawer (2) is disposed in the preservation compartment (12); A moisture-permeable structure (3) is provided on the drawer (2), and the interior of the drawer (2) is connected to the fresh-keeping compartment (12) through the moisture-permeable structure (3); The refrigerated compartment (11) is provided with a refrigerated air inlet (13), the fresh-keeping compartment (12) is provided with a return air inlet (14), the moisture-permeable structure (3) and the inner wall of the fresh-keeping compartment (12) have a first gap (15), and the refrigerated air inlet (13) is connected to the return air inlet (14) through the first gap (15).

2. The refrigeration appliance of claim 1, wherein: The refrigeration equipment also includes an air duct plate (4), which is disposed inside the housing (1). A portion of the air duct plate (4) forms the back panel of the refrigeration compartment (11), and another portion of the air duct plate (4) forms the back panel of the fresh-keeping compartment (12). The refrigeration air inlet (13) and the return air inlet (14) are both disposed on the air duct plate (4).

3. The refrigeration appliance of claim 2, wherein: The refrigeration equipment also includes a partition plate (5), which is disposed on the air duct plate (4). The first side of the partition plate (5) forms the side wall of the refrigeration compartment (11), and the second side of the partition plate (5) forms the side wall of the fresh food compartment (12). The first gap (15) is formed between the drawer (2) and the partition plate (5), and the moisture-permeable structure (3) is disposed on the side wall of the drawer (2) facing the partition plate (5).

4. The refrigeration appliance of claim 3, wherein: The housing (1) has an opening, and the partition plate (5) has a second gap (16) between it and the opening. The refrigerated air supply port (13) is connected to the return air port (14) in sequence through the second gap (16) and the first gap (15).

5. The refrigeration appliance of claim 3, wherein: The refrigeration equipment also includes a drawer cover, which is fastened to the drawer (2), the partition plate (5) is located above the drawer (2), and the gap is formed between the drawer cover and the partition plate (5), and the moisture-permeable structure (3) is provided on the drawer cover.

6. The refrigeration appliance of claim 1, wherein: A variable temperature chamber (17) is also formed inside the shell (1). The variable temperature chamber (17) is relatively sealed to the refrigeration chamber (11) and the fresh food preservation chamber (12), and the circulating air volume in the variable temperature chamber (17) is adjustable.

7. The refrigeration appliance of claim 6, wherein: A refrigeration air duct is also formed inside the shell (1), and a variable temperature air outlet (18) is provided on the variable temperature chamber (17). Both the refrigeration air outlet (13) and the variable temperature air outlet (18) are connected to the refrigeration air duct.

8. The refrigeration appliance of claim 7, wherein: The refrigeration equipment also includes an adjustment mechanism (6), which is located at the variable temperature air outlet (18) and can adjust the flow area of ​​the variable temperature air outlet (18).

9. The refrigeration appliance of claim 1, wherein: The first spacing (15) ranges from 10 mm to 25 mm.

10. The refrigeration appliance of any of claims 1-9, wherein: The refrigeration equipment includes a refrigerator.

11. The refrigeration appliance of claim 6, wherein, The fresh-keeping compartment (12) and the variable-temperature compartment (17) are arranged side by side along the width direction of the shell (1) and are located below the refrigeration compartment (11).

12. The refrigeration appliance of claim 6, wherein, The refrigeration equipment also includes an air duct plate (4) and a partition plate (5), the air duct plate (4) being disposed inside the housing (1), and the partition plate (5) being disposed on the air duct plate (4); A baffle is provided between the fresh-keeping chamber (12) and the variable-temperature chamber (17), and the edge of the baffle is sealed between the partition plate (5), the air duct plate (4) and the inner wall of the shell (1).

13. The refrigeration appliance of claim 7, wherein, The refrigeration equipment also includes a duct plate (4), which is disposed inside the housing (1). Part of the duct plate (4) forms the back plate of the temperature-changing chamber (17). The temperature-changing air outlet (18) and the return air outlet (14) of the temperature-changing chamber (17) are both disposed on the duct plate (4).

14. The refrigeration appliance of claim 1, wherein, The moisture-permeable structure (3) is a moisture-permeable membrane.

15. The refrigeration appliance of claim 1, wherein, The refrigeration equipment also includes an air duct plate (4), which is disposed inside the housing (1). The air duct plate (4) includes a first part of the plate, which forms the back plate of the cold storage compartment (11). The cold storage air outlet (13) is disposed on the first part of the plate.

16. The refrigeration appliance of claim 1, wherein, The refrigeration equipment also includes an air duct plate (4), which is disposed inside the housing (1). The air duct plate (4) includes a second part of the plate, which constitutes the back plate of the fresh-keeping chamber (12). The return air vent (14) is disposed on the second part of the plate.

17. The refrigeration appliance of claim 1, wherein, A variable temperature chamber (17) is also formed inside the shell (1). The variable temperature chamber (17) is relatively sealed to the refrigeration chamber (11) and the fresh-keeping chamber (12). A variable temperature air outlet (18) is provided on the variable temperature chamber (17). Both the refrigeration air outlet (13) and the variable temperature air outlet (18) are connected to the refrigeration air duct. The refrigeration equipment also includes a duct plate (4), which is disposed inside the housing (1). The duct plate (4) includes a third part of the plate, which forms the back plate of the variable temperature chamber (17). The variable temperature air outlet (18) is disposed on the third part of the plate.

18. The refrigeration appliance of claim 2, wherein, The air duct plate (4) divides the interior of the housing (1) into a cooling chamber and a storage chamber. An evaporator structure is provided in the cooling chamber, and the evaporator structure is used to generate cold air.

19. The refrigeration appliance of claim 18, wherein, The refrigeration equipment also includes a partition plate (5), which is disposed on the air duct plate (4) and divides the storage cavity into the refrigeration chamber (11) and the fresh-keeping chamber (12).

20. The refrigeration appliance of claim 8, wherein, The adjustment mechanism (6) is movably arranged along a predetermined trajectory to block or avoid the variable temperature air outlet (18). By adjusting the blocking area of ​​the adjustment mechanism (6) on the variable temperature air outlet (18), the flow area of ​​the variable temperature air outlet (18) is adjusted.

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