Refrigerator

Abstract

The embodiment of the utility model belongs to the technical field of household appliances, and provides a refrigerator. According to the refrigerator provided by the embodiment of the invention, the at least two relatively closed fresh-keeping spaces are arranged in the refrigerator body, a channel is provided for gas flowing through the gas path of the gas adjusting component, the gas driving device is used for driving gas to flow from the gas inlet to the gas outlet, and the oxygen permeation membrane arranged in the gas path enables oxygen in the air at the gas inlet side to permeate to the gas outlet side; and different fresh-keeping atmospheres of at least two fresh-keeping spaces are realized by arranging the first gas path control system and the second gas path control system, so that the diversity of the fresh-keeping environment and the use flexibility are improved, and the drawer space in the refrigerator can be fully utilized. The oxygen separated from one fresh-keeping space is guided into the other fresh-keeping space through the gas circuit, low-oxygen and high-oxygen fresh-keeping atmospheres are achieved at the same time, the separated oxygen is recycled, and the energy utilization rate is increased.

Description

Technical Field

[0001] Embodiments of the present application relate to the technology of household appliances. In particular, it relates to a refrigerator. Background Art

[0002] As a commonly used household appliance, a refrigerator is used to appropriately extend the storage period of food materials by adjusting suitable storage conditions. Among them, different food materials correspond to different storage conditions. For example, for food materials such as fruits and water vegetables, their respiration will excessively consume nutrients, so they are suitable for a low-oxygen storage environment; for another example, an oxygen environment can maintain oxymyoglobin in meat products and ensure the freshness of meat, so foods such as red meat are suitable for a high-oxygen storage environment.

[0003] In the related art, a vacuum fresh-keeping drawer is usually configured in a refrigerator to extract the air pressure in the internal space of the drawer, thereby forming a low-pressure storage environment to improve the fresh-keeping effect of food materials.

[0004] However, the fresh-keeping effect of the vacuum fresh-keeping drawer is single and the flexibility is poor. Summary of the Utility Model

[0005] Embodiments of the present application provide a refrigerator that can provide multiple fresh-keeping environments and improve the flexibility of the fresh-keeping environment of the refrigerator.

[0006] In a first aspect, embodiments of the present application provide a refrigerator, which includes:

[0007] A box body;

[0008] At least two relatively airtight fresh-keeping spaces are arranged in the box body;

[0009] An air-conditioning component having an air path; an air inlet and an air outlet are respectively arranged at both ends of the air path;

[0010] A gas driving device is arranged in the air path, and the gas driving device can drive gas to flow from the air inlet to the air outlet;

[0011] An oxygen-permeable membrane is arranged in the air path, and the oxygen-permeable membrane is configured to allow oxygen in the air on the air inlet side to permeate to the air outlet side;

[0012] Wherein, the air inlet can be selectively communicated with one of the at least two fresh-keeping spaces or communicated with the external space outside the fresh-keeping space of the refrigerator through a first air path control system;

[0013] The air outlet can be selectively communicated with the other of the at least two fresh-keeping spaces or communicated with the external space through a second air path control system.

[0014] In the refrigerator according to the embodiments of the present application, at least two relatively airtight fresh-keeping spaces are provided inside the refrigerator body. An air path of an air-conditioning component provides a channel for gas flow. A gas driving device is used to drive gas to flow from an air inlet to an air outlet. An oxygen-permeable membrane provided in the air path allows oxygen in the air on the air inlet side to permeate to the air outlet side. By setting a first air path control system, the air inlet can be selectively connected to one of the at least two fresh-keeping spaces or to the outside space outside the fresh-keeping space of the refrigerator, so that oxygen in one of the fresh-keeping spaces or the outside space enters another fresh-keeping space through the oxygen-permeable membrane. By setting a second air path control system, the air outlet can be selectively connected to the other of the at least two fresh-keeping spaces or to the outside space, so that oxygen separated by one of the fresh-keeping spaces through the oxygen-permeable membrane enters another fresh-keeping space or the outside space.

[0015] Through the above settings, oxygen is separated by the oxygen-permeable membrane, and at least two different fresh-keeping atmospheres in the fresh-keeping spaces are realized by using the gas driving device and the two air path control systems, improving the diversity of the fresh-keeping environment and the flexibility of use. Moreover, the drawer space inside the refrigerator can be fully utilized. And oxygen separated from one of the fresh-keeping spaces is introduced into another fresh-keeping space through the air path, realizing both low-oxygen and high-oxygen fresh-keeping atmospheres at the same time, realizing the reuse of the separated oxygen, and improving the energy utilization rate.

[0016] Furthermore, through the setting of the first air path control system, oxygen in the outside space outside the fresh-keeping space of the refrigerator can also enter another fresh-keeping space through the oxygen-permeable membrane; through the setting of the second air path control system, oxygen separated from one of the fresh-keeping spaces can be discharged to the outside space outside the fresh-keeping space of the refrigerator, so that the oxygen concentration in at least two fresh-keeping spaces has a large adjustment range.

[0017] Furthermore, in addition to adjusting the oxygen concentration, the fresh-keeping environment of at least two fresh-keeping spaces can be personalized and flexibly set by the temperature, humidity, etc. of at least two fresh-keeping spaces, which is beneficial to improving the fresh-keeping effect.

[0018] In some embodiments of the present application, when the air inlet is connected to one of the at least two fresh-keeping spaces through the first air path control system, the air outlet is connected to the other of the at least two fresh-keeping spaces through the second air path control system.

[0019] The above technical solutions have the following advantages or beneficial effects: One of the fresh-keeping spaces is connected to the air inlet of the air path through the first air path control system, and the other fresh-keeping space is connected to the air outlet of the air path through the second air path control system. Oxygen in the fresh-keeping space connected to the air inlet is introduced into the fresh-keeping space connected to the air outlet through the oxygen-permeable membrane, realizing both low-oxygen and high-oxygen fresh-keeping atmospheres at the same time, realizing the reuse of the separated oxygen, and improving the energy utilization rate.

[0020] In some embodiments of the present application, when the air inlet is connected to the external space through the first gas path control system, the air outlet is connected to the other of the at least two fresh-keeping spaces through the second gas path control system.

[0021] The above technical solution has the following advantages or beneficial effects: The external space is connected to the air inlet of the gas path through the first gas path system, and the other of the at least two fresh-keeping spaces is connected to the air outlet of the gas path through the second gas path control system. Oxygen in the external space is introduced into the other fresh-keeping space through the oxygen-permeable membrane, making the oxygen source in the other fresh-keeping space more sufficient and facilitating an increase in the adjustment range of the oxygen concentration in the fresh-keeping space.

[0022] In some embodiments of the present application, when the air inlet is connected to one of the at least two fresh-keeping spaces through the first gas path control system, the air outlet is connected to the external space through the second gas path control system.

[0023] The above technical solution has the following advantages or beneficial effects: One of the at least two fresh-keeping spaces is connected to the air inlet of the gas path through the first gas path control system, and the external is connected to the air outlet of the gas path through the second gas path control system. Oxygen in one of the fresh-keeping spaces is discharged to the external space through the oxygen separated by the oxygen-permeable membrane, making the oxygen discharge space unrestricted and facilitating an increase in the adjustment range of the oxygen concentration in the fresh-keeping space.

[0024] In some embodiments of the present application, along the flow direction of the gas in the gas path, the gas driving device is located downstream of the oxygen-permeable membrane.

[0025] The above technical solution has the following advantages or beneficial effects: The gas driving device is located downstream of the oxygen-permeable membrane, so that the gas passes through the oxygen-permeable membrane first and then through the gas driving device. The gas driving device plays a role in sucking the gas, which is beneficial to improving the oxygen permeability of the oxygen-permeable membrane; moreover, the oxygen-permeable membrane can play a role in filtering impurities and protecting the gas driving device.

[0026] In some embodiments of the present application, a fan is provided in the gas path; along the flow direction of the gas in the gas path, the fan is located upstream of the oxygen-permeable membrane.

[0027] The above technical solution has the following advantages or beneficial effects: By adding a fan upstream of the oxygen-permeable membrane, the rate of gas entering the oxygen-permeable membrane can be increased, which is beneficial to improving the oxygen permeation efficiency.

[0028] In some embodiments of the present application, the first gas path control system has:

[0029] At least two first inlets, one of the at least two first inlets is connected to one of the at least two fresh-keeping spaces; the other of the at least two first inlets is connected to the external space;

[0030] A first outlet, the first outlet being in communication with the air inlet;

[0031] Wherein, the first air path control system is configured to selectively communicate one of the first inlets with the first outlet.

[0032] The above technical solution has the following advantages or beneficial effects: The first air path control system of the embodiment of the present application is provided with a first outlet in communication with the air inlet of the air path, and at least two first inlets are respectively in communication with one of at least two fresh-keeping spaces or the external space. By using the first air path control system to selectively communicate one of the first inlets with the first outlet, the air inlet of the air path can be selectively communicated with the space, which not only facilitates the connection of the first air path control system to each space, but also facilitates the control of the first air path control system.

[0033] In some embodiments of the present application, the second air path control system has:

[0034] At least two second outlets, one of the at least two second outlets being in communication with one of the at least two fresh-keeping spaces, and the other of the at least two second outlets being in communication with the external space;

[0035] A second inlet, the second inlet being in communication with the air outlet;

[0036] Wherein, the second air path control system is configured to selectively communicate one of the second outlets with the second inlet.

[0037] The above technical solution has the following advantages or beneficial effects: The second air path control system of the embodiment of the present application is provided with a second inlet in communication with the air outlet of the air path, and at least two second outlets are respectively in communication with one of the at least two fresh-keeping spaces or the external space. By using the second air path control system to selectively communicate one of the second outlets and the first inlet, the air outlet of the air path can be selectively communicated with the space, which not only facilitates the connection of the second air path control system to each space, but also facilitates the control of the second air path control system.

[0038] In some embodiments of the present application, at least three relatively sealed fresh-keeping spaces are provided in the box body;

[0039] The air inlet can be selectively communicated to at least two of the at least three fresh-keeping spaces or to the external space through the first air path control system.

[0040] The above technical solution has the following advantages or beneficial effects: The air inlet of the gas path in the embodiment of the present application can be selectively connected to at least two fresh-keeping spaces through the first gas path control system, which can increase the space volume of the oxygen source separated by the oxygen permeable membrane, that is, expand the fresh-keeping volume of the low-oxygen fresh-keeping atmosphere.

[0041] In some embodiments of the present application, at least three relatively airtight fresh-keeping spaces are provided in the box body;

[0042] The air outlet can be selectively connected to at least two of the at least three fresh-keeping spaces or to the external space through the second gas path control system.

[0043] The above technical solution has the following advantages or beneficial effects. The air outlet of the gas path in the embodiment of the present application can be selectively connected to at least two fresh-keeping spaces through the second gas path control system, which can introduce the oxygen separated by the oxygen permeable membrane into at least one of the fresh-keeping spaces. It can not only expand the fresh-keeping volume of the high-oxygen fresh-keeping atmosphere, but also further improve the diversity and flexibility of the fresh-keeping atmosphere in the refrigerator to adapt to different fresh-keeping needs.

[0044] In some embodiments of the present application, the box body is constructed to form a refrigerating compartment, and the refrigerating compartment forms the external space outside the fresh-keeping space of the refrigerator.

[0045] The above technical solution has the following advantages or beneficial effects: Through the above settings, the oxygen in the low-temperature air in the refrigerating compartment can be separated by the oxygen permeable membrane. While increasing the oxygen concentration in the fresh-keeping space, the temperature of the oxygen entering the fresh-keeping space is relatively low, which is conducive to ensuring the low-temperature preservation effect of the fresh-keeping space; the oxygen separated from the fresh-keeping space can be introduced into the refrigerating compartment to reuse the oxygen with a relatively low temperature, and avoid wasting energy by discharging the oxygen with a reduced temperature outside the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0047] Figure 1 The structural schematic diagram of the refrigerator provided for some examples of the present application;

[0048] Figure 2 The structural schematic diagram of the refrigerator provided for some other embodiments of the present application;

[0049] Figure 3 The structural schematic diagram of the fresh-keeping device provided for some embodiments of the present application;

[0050] Figure 4 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application;

[0051] Figure 5 Schematic diagram of the gas flow direction of the first freshness preservation mode of the freshness preservation device provided for some embodiments of the present application;

[0052] Figure 6 Schematic diagram of the gas flow direction of the second freshness preservation mode of the freshness preservation device provided for some embodiments of the present application;

[0053] Figure 7 Schematic diagram of the gas flow direction of the third freshness preservation mode of the freshness preservation device provided for some embodiments of the present application;

[0054] Figure 8 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application;

[0055] Figure 9 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application;

[0056] Figure 10 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application;

[0057] Figure 11 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application;

[0058] Figure 12 Schematic structural diagram of the freshness preservation device provided for some other embodiments of the present application.

[0059] Description of reference numerals:

[0060] 10: Box body; 101: First freshness preservation space; 102: Second freshness preservation space; 103: Refrigerating compartment; 1031: Communication port; 104: Third freshness preservation space; 20: Door body; 30: First drawer; 40: Second drawer; 50: Third drawer; 60: Freezing drawer;

[0061] 100: Modified atmosphere component; 110: Gas path; 111: First sub-section; 112: Second sub-section; 113: Third sub-section;

[0062] 120: Oxygen permeable membrane; 130: Gas driving device; 140: Fan;

[0063] 200: First gas path control system; 210: First shunt valve; 211: First inlet; 212: First outlet; 220: First pipe body; 221: First air outlet branch pipe; 222: First air inlet branch pipe; 223: Second air inlet branch pipe; 230: First switch valve; 240: Second switch valve;

[0064] 300: Second gas path control system; 310: Second shunt valve; 311: Second inlet; 312: Second outlet; 320: Second pipe body; 321: Third intake branch pipe; 322: Second outlet branch pipe; 323: Third outlet branch pipe; 330: Third switch valve; 340: Fourth switch valve;

[0065] 410: Second air pipe; 420: Third air pipe; 430: Fourth air pipe; 440: Fifth air pipe; 450: Sixth air pipe; 460: Seventh air pipe;

[0066] 510: Third valve structure; 520: Fourth valve structure. Detailed implementation manners

[0067] To make the objectives, implementation manners and advantages of this application clearer, the following will clearly and completely describe the exemplary implementation manners of this application with reference to the accompanying drawings in the exemplary embodiments of this application. Apparently, the described exemplary embodiments are only a part rather than all of the embodiments of this application.

[0068] It should be noted that the brief description of the terms in this application is only for facilitating the understanding of the subsequent described implementation manners, rather than intending to limit the implementation manners of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0069] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion. For example, a product or device including a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0070] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for facilitating the description of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0071] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0072] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] Modified atmosphere preservation is a technology that artificially controls the proportion of gas components, humidity, temperature, and air pressure to inhibit the respiration rate of food cells and delay their metabolic processes, thereby keeping the color, taste, nutrition, etc. of food basically unchanged for a long time. This technology is not only applicable to fruits and vegetables but also to the preservation of various foods. The most common method of modified atmosphere preservation is to reduce the oxygen content or concentration and increase the carbon dioxide content or concentration.

[0074] However, from the perspective of the characteristics of the food storage environment, some foods are suitable for a low-oxygen storage environment. For example, most fruits, vegetables, dried foods, etc. A low-oxygen storage environment can inhibit the respiration of foods and reduce the growth of aerobic microorganisms. Some foods are suitable for a high-oxygen storage environment. For example, mushrooms, fresh-cut fruits and vegetables, fresh pork, live aquatic products, etc. A high-oxygen storage environment can inhibit enzymatic browning and reduce anaerobic fermentation.

[0075] Therefore, in terms of the oxygen concentration of the storage environment, some foods are suitable for a low-oxygen concentration, such as an oxygen concentration < 21%; some foods are suitable for a high-oxygen concentration, such as an oxygen concentration > 21%.

[0076] Therefore, from the perspective of classifying and storing foods, it is necessary to configure different storage environments in different areas or drawers of the refrigerator's fresh food compartment to store different types of foods.

[0077] In related refrigerator products, vacuum preservation or MSA (Modified Storage Atmosphere) oxygen control preservation technology is usually adopted in the refrigerator.

[0078] Among them, vacuum preservation mainly uses a vacuum pump to extract a part of the air in the storage container to reduce the air pressure in the storage container, so as to form a low-pressure storage environment in the storage container, such as a pressure less than 101 kPa.

[0079] The MSA controlled-oxygen preservation technology mainly reduces the oxygen content in the storage space through nitrogen-oxygen separation to slow down the oxidation of food materials. Under a certain pressure, the air in the storage container passes through the nitrogen-oxygen separation membrane. Since the permeation rates of oxygen and nitrogen through the nitrogen-oxygen separation membrane are different, and the permeation rate of oxygen is greater than that of nitrogen. On the other side of the nitrogen-oxygen separation membrane, air with a higher oxygen concentration than in the air can be obtained. In this way, low-oxygen air in the storage container can be achieved.

[0080] On the one hand, both vacuum preservation or MSA controlled-oxygen preservation technology are applied to one drawer of the refrigerator. Usually, the refrigerator is equipped with two drawers, or even three drawers, resulting in insufficient utilization of the preservation space in the refrigerator. On the other hand, the extracted or filtered air is directly discharged outside the storage container and not reused; in particular, the separated oxygen is wasted without reuse. Moreover, the preservation environment in the refrigerator is single and does not match the increasing preservation needs of users, affecting the user experience.

[0081] In view of this, the R & D personnel of this application designed a refrigerator. Through the control of an air pump and a valve structure, it can simultaneously form a low-oxygen preservation environment and a high-oxygen preservation environment, or form a high-oxygen preservation environment and a conventional preservation environment, or form a low-oxygen preservation environment and a conventional preservation environment. It can not only make full use of the refrigerator space to form different preservation environments, but also form multiple preservation environments, improving the flexibility of users to utilize different preservation environments.

[0082] Moreover, through the control of the air pump and the valve structure, the oxygen separated from one storage container can be introduced into another storage container, simultaneously forming a low-oxygen preservation environment and a high-oxygen preservation environment, simplifying the preservation structure of the refrigerator and improving the oxygen utilization rate.

[0083] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0084] Combined Figure 1 , the refrigerator provided by the embodiment of this application includes a box body 10. The box body 10 can have a storage compartment for storing food materials and other items.

[0085] The box body 10 can include an inner liner and an outer shell. Among them, the inner liner is configured to form the storage compartment, and the outer shell can be connected to the outside of the inner liner to form the appearance of the refrigerator. The box body 10 can also include a thermal insulation layer, which is arranged between the inner liner and the outer shell to play a role in insulating the storage compartment, so as to minimize the heat exchange between the storage compartment and the outside of the refrigerator, and thus ensure the refrigeration effect of the refrigerator.

[0086] Among them, the number of storage compartments can be set to multiple, such as Figure 1 As shown, there are two storage compartments. According to different temperatures, the two storage compartments can be a refrigerating compartment 103 and a freezing compartment respectively. The refrigerating compartment 103 and the freezing compartment can be arranged side by side in the height direction. For example, the refrigerating compartment 103 is located above the freezing compartment; the refrigerating compartment and the freezing compartment can be arranged side by side in the horizontal direction. For example, the freezing compartment is on the left and the refrigerating compartment is on the right.

[0087] Continue to refer to Figure 1 , the refrigerator according to the embodiment of the present application further includes a door body 20, and the door body 20 can be connected to the box body 10 to open or close the storage compartment.

[0088] In some embodiments, the door body 20 is rotatably connected to the box body 10, so that the door body 20 rotates relative to the box body 10 to open and close the storage compartment.

[0089] The number of the door bodies 20 can be multiple. For example, one door body 20 is correspondingly provided for each storage compartment. For another example, two door bodies 20 are correspondingly provided for each storage compartment.

[0090] A variety of structures are provided in the storage compartment to provide placement positions for items such as food ingredients. Exemplarily, a shelf is provided in the refrigerating compartment; a drawer etc. is provided in the freezing compartment. The box body 10 is constructed to form a chamber, and a drawer is slidably provided in the chamber to form a relatively airtight fresh-keeping space.

[0091] In some embodiments, at least two relatively airtight fresh-keeping spaces are provided in the box body 10, such as a first fresh-keeping space, a second fresh-keeping space and a third fresh-keeping space.

[0092] Such as Figure 1 As shown, the box body 10 is constructed to form a first chamber, and the front side of the first chamber, that is, the side of the first chamber facing the door body 20, is open. The refrigerator further includes a first drawer 30, and the first drawer 30 is slidably provided in the first chamber. The first drawer 30 can be pulled out along the depth direction of the refrigerator.

[0093] When the first drawer 30 is pushed into the first chamber, the first drawer 30 and the chamber wall of the first chamber jointly enclose a first fresh-keeping space. The first fresh-keeping space includes the storage space in the first drawer 30 and the interval between the first drawer 30 and the chamber wall of the first chamber. Of course, items such as food ingredients are stored in the first drawer 30.

[0094] The front panel of the first drawer 30, i.e., the panel of the first drawer 30 facing the door body 20, closes the first chamber, so that the first fresh-keeping space forms a storage space that can be independent of the refrigerating compartment 103. Exemplarily, a seal is provided between the front panel of the first drawer 30 and the front surface of the first chamber to improve the sealing performance of the first fresh-keeping space.

[0095] Continuing to refer to Figure 1 , the cabinet 10 is configured to form a second chamber, and the front side of the second chamber, i.e., the side of the second chamber facing the door body 20, is open. The refrigerator further includes a second drawer 40, and the second drawer 40 is slidably disposed in the second chamber. The second drawer 40 can be pulled out along the depth direction of the refrigerator.

[0096] When the second drawer 40 is pushed into the second chamber, the second drawer 40 and the chamber walls of the second chamber jointly enclose a second fresh-keeping space. The second fresh-keeping space includes the storage space inside the second drawer 40 and the interval between the second drawer 40 and the chamber walls of the second chamber. Of course, ingredients and other items are stored in the second drawer 40.

[0097] The front panel of the second drawer 40, i.e., the panel of the second drawer 40 facing the door body 20, closes the second chamber, so that the second fresh-keeping space forms a storage space that can be independent of the refrigerating compartment 103. Exemplarily, a seal is provided between the front panel of the second drawer 40 and the front surface of the second chamber to improve the sealing performance of the second fresh-keeping space.

[0098] The above-mentioned first drawer 30 and second drawer 40 can both be located in the refrigerating compartment 103, and the first drawer 30 and the second drawer 40 are arranged side by side in the horizontal direction.

[0099] Of course, at least one of the first drawer 30 and the second drawer 40 can also be located outside the refrigerating compartment 103. In this case, the front panel of the drawer also functions as a door body.

[0100] The above is only a schematic description of the number of fresh-keeping spaces, and it is not a limitation on the number of fresh-keeping spaces provided in the cabinet 10. For example Figure 2 , in some embodiments, the cabinet 10 is further configured to form a third chamber, and the third chamber can be located below the refrigerating compartment. The third chamber can be a variable-temperature chamber. The front side of the third chamber, i.e., the side of the third chamber facing away from the refrigerator back panel, is open. The refrigerator further includes a third drawer 50, and the third drawer 50 is slidably disposed in the third chamber, and the third drawer 50 can be pulled out along the depth direction of the refrigerator.

[0101] When the third drawer 50 is pushed into the third chamber, the third drawer 50 and the chamber wall of the third chamber jointly enclose a third fresh-keeping space. The front end plate of the third drawer 50 functions as a door body. The third fresh-keeping space includes the storage space within the third drawer 50 and the space between the third drawer 50 and the chamber wall of the third chamber. Of course, ingredients and other items are stored within the third drawer 50.

[0102] As Figure 2 shown, in some embodiments, a freezer drawer 60 may be provided in the refrigerating compartment, and the freezer drawer 60 can be pulled in and out along the depth direction of the refrigerator to facilitate the access of items.

[0103] Referring to Figure 3 , the refrigerator according to the embodiment of the present application further includes an air-conditioning component 100, and the air-conditioning component 100 is configured to adjust the oxygen concentration in the fresh-keeping space so as to adjust the fresh-keeping environment.

[0104] In some embodiments, the air-conditioning component 100 is installed inside the cabinet to reduce the influence of the air-conditioning component 100 on the storage space. Exemplarily, the air-conditioning component 100 is located in the space between the cabinet shell and the cabinet liner, and the air-conditioning component 100 is connected to the fresh-keeping space by providing an opening on the chamber wall.

[0105] Continuing to refer to Figure 3 , the air-conditioning component 100 has an air path 110, and the air path 110 provides a channel for gas flow. An air inlet and an air outlet are respectively provided at both ends of the air path 110.

[0106] Exemplarily, the air-conditioning component 100 may include a first air pipe, and the first air pipe is configured to form the air path 110. With such a setting, the structure of the air path 110 is simple and the layout position is flexible.

[0107] Exemplarily, the air-conditioning component 100 may include a housing, and the air path 110 is formed by the housing. With such a setting, it is convenient for the air-conditioning component 100 to form a modular structure and is convenient for assembly.

[0108] In some embodiments, an oxygen-permeable membrane 120 is provided in the air path 110, and the oxygen-permeable membrane 120 is configured to allow the oxygen in the air on the air inlet side to permeate to the air outlet side. Thus, a low-oxygen atmosphere is formed on the air inlet side and a high-oxygen atmosphere is formed on the air outlet side.

[0109] The oxygen-permeable membrane 120 has an air inlet side and an air outlet side that are opposite to each other, and the oxygen-permeable membrane 120 is configured to allow the oxygen in the air on the air inlet side to permeate to the air outlet side. The air inlet side of the oxygen-permeable membrane 120 faces the air inlet end of the air path 110, and the air outlet side of the oxygen-permeable membrane 120 faces the air outlet end of the air path 110.

[0110] In some embodiments, a gas driving device 130 may be disposed in the gas path 110, and the gas driving device 130 can drive the gas to flow from the air inlet to the air outlet.

[0111] The gas driving device 130 may include an air pump, and the air pump can generate a relatively high gas pressure, which is beneficial to improving the gas flow rate.

[0112] The gas driving device 130 may include a blower. The blower has low energy consumption and low noise, which is beneficial to reducing the noise generated during the operation of the refrigerator.

[0113] In some embodiments, along the gas flow direction in the gas path 110, the oxygen permeable membrane 120 is located downstream of the gas driving device 130, and the gas driving device 130 is located between the air inlet side of the oxygen permeable membrane 120 and the air inlet of the gas path 110. After the gas driving device 130 pressurizes and accelerates the gas, and then passes through the oxygen permeable membrane 120, the gas pressure and rate entering the oxygen permeable membrane 120 can be increased, and the working efficiency of the oxygen permeable membrane 120 can be improved.

[0114] In some other embodiments, along the gas flow direction in the gas path 110, the gas driving device 130 is located downstream of the oxygen permeable membrane 120, and the gas driving device 130 is located between the air outlet side of the oxygen permeable membrane 120 and the air outlet of the gas path 110. The gas driving device 130 functions to suck the gas, which is beneficial to improving the separation efficiency of the oxygen permeable membrane 120. The oxygen permeable membrane 120 can filter out some impurities, which plays a role in protecting the gas driving device 130; moreover, the oxygen permeable membrane 120 can provide a relatively stable gas flow rate, so that the gas driving device 130 is in a relatively stable working condition.

[0115] Continue to refer to Figure 3 , the gas path 110 includes a first sub-section 111, a second sub-section 112, and a third sub-section 113. Among them, the oxygen permeable membrane 120 is connected between the first sub-section 111 and the second sub-section 112, and the gas driving device 130 is connected between the second sub-section 112 and the third sub-section 113.

[0116] In this way, oxygen in the first sub-section 111 passes through the oxygen permeable membrane 120 and enters the second sub-section 112, and under the action of the gas driving device 130, enters the third sub-section 113.

[0117] When the gas driving device 130 is located on the air outlet side of the oxygen permeable membrane 120, the oxygen permeable membrane 120 presents a resistance to the gas flow. In order to improve the rate of the gas entering the oxygen permeable membrane 120, in some embodiments, in combination with Figure 4 , the gas conditioning component 100 further includes a blower 140, and the blower 140 is disposed on the gas path 110. Along the gas flow direction in the gas path 110, the blower 140 is located upstream of the oxygen permeable membrane 120. In this way, the blower 140 is located on the first sub-section 111.

[0118] By adding a blower 140 to the air inlet side of the oxygen permeable membrane 120, the rate of gas entering the oxygen permeable membrane 120 is increased, which is beneficial to improving the oxygen separation efficiency.

[0119] Continue to refer to Figure 3 , the refrigerator according to the embodiment of the present application further includes a first gas path control system 200, and the first gas path control system 200 is configured to control the connection state of the air inlet of the gas path 110.

[0120] The first gas path control system 200 can be installed inside the box body to reduce the influence of the first gas path control system 200 on the storage space.

[0121] The first gas path control system 200 is connected to the air inlet of the gas path 110. Specifically, the first gas path control system 200 is connected to the first sub-section 111. Among them, the air inlet of the gas path 110 can be selectively connected to at least one of the two fresh-keeping spaces through the first gas path control system 200, or connected to the external space outside the fresh-keeping space of the refrigerator.

[0122] Among them, the external space outside the fresh-keeping space of the refrigerator can be the space outside the refrigerator, and the external space outside the fresh-keeping space of the refrigerator can be the space inside the refrigerator except for the fresh-keeping space, such as the refrigerating compartment 103, the air duct, etc. In the embodiment of the present application, the fresh-keeping space of the refrigerator includes a first fresh-keeping space 101, a second fresh-keeping space 102, and a third fresh-keeping space 104 described later.

[0123] Exemplarily, the air inlet of the gas path 110 can be selectively connected to the first fresh-keeping space 101 or the external space through the first gas path control system 200. When the air inlet is connected to the first fresh-keeping space 101 through the first gas path control system, the first fresh-keeping space 101 is connected to the gas path 110 through the first gas path control system 200; when the air inlet is connected to the external space outside the fresh-keeping space of the refrigerator through the first gas path control system 200, the external space outside the fresh-keeping space of the refrigerator is connected to the gas path 110 through the first gas path control system 200.

[0124] Continue to refer to Figure 3 , the refrigerator according to the embodiment of the present application further includes a second gas path control system 300, and the second gas path control system 300 is configured to control the connection state of the air outlet of the gas path 110.

[0125] The second gas path control system 300 can be installed inside the box body to reduce the influence of the second gas path control system 300 on the storage space.

[0126] The second gas path control system 300 is connected to the air outlet of the gas path 110. Specifically, the second gas path control system 300 is connected to the third sub-section 113. And the air outlet of the gas path 110 can be selectively communicated to at least two other freshness preservation controls through the second gas path control system 300, or communicated to the external space outside the freshness preservation space of the refrigerator.

[0127] Exemplarily, the air outlet of the gas path 110 can be selectively communicated to the second freshness preservation space 102 or the external space through the second gas path control system 300. When the air outlet of the gas path 110 is communicated to the second freshness preservation space 102 through the second gas path control system 300, the second freshness preservation space 102 is communicated with the gas path 110 through the second gas path control system 300; when the air outlet of the gas path 110 is communicated to the external space outside the freshness preservation space of the refrigerator through the second gas path control system 300, the external space outside the freshness preservation space of the refrigerator is communicated with the gas path 110 through the second gas path control system 300.

[0128] Thus, the above-mentioned gas conditioning component 100, the first gas path control system 200, the second gas path control system 300, the structure forming the first freshness preservation space 101, and the mechanism forming the second freshness preservation space 102 form the freshness preservation device of the refrigerator to improve the freshness preservation effect of food materials.

[0129] The refrigerator of the embodiment of the present application can have multiple freshness preservation modes.

[0130] In some embodiments, when the air inlet is communicated to one of at least two freshness preservation spaces through the first gas path control system 200, the air outlet is communicated to the other of at least two freshness preservation spaces through the second gas path control system 300. Thus, one of at least two freshness preservation spaces is a low-oxygen freshness preservation atmosphere, and the other of at least two freshness preservation spaces is a high-oxygen freshness preservation atmosphere. At this time, the freshness preservation mode of the refrigerator can be defined as the first freshness preservation mode.

[0131] In some embodiments, when the air inlet is communicated to the external space through the first gas path control system 200, the air outlet is communicated to the other of at least two freshness preservation spaces through the second gas path control system 300. Thus, one of at least two freshness preservation spaces is a conventional refrigerated freshness preservation atmosphere, and the other of at least two freshness preservation spaces is a high-oxygen freshness preservation atmosphere. At this time, the freshness preservation mode of the refrigerator can be defined as the second freshness preservation mode.

[0132] In some embodiments, when the air inlet is communicated to one of at least two freshness preservation spaces through the first gas path control system 200, the air outlet is communicated to the external space through the second gas path control system 300. Thus, one of at least two freshness preservation spaces is a low-oxygen freshness preservation atmosphere, and the other of at least two freshness preservation spaces is a conventional refrigerated freshness preservation atmosphere. At this time, the freshness preservation mode of the refrigerator can be defined as the third freshness preservation mode.

[0133] Among them, the oxygen concentration of the high-oxygen preservation atmosphere is greater than that of the conventional refrigerated preservation atmosphere, and the oxygen concentration of the conventional refrigerated preservation atmosphere is higher than that of the low-oxygen preservation atmosphere.

[0134] Exemplarily, the oxygen concentration of the low-oxygen preservation atmosphere is lower than the oxygen concentration in the atmospheric environment where the refrigerator is located. For example, the oxygen concentration is within 5%-21%. The oxygen concentration of the high-oxygen preservation atmosphere is higher than the oxygen concentration in the atmospheric environment where the refrigerator is located. For example, the oxygen concentration is in the range of 21%-35%. The oxygen concentration of the conventional refrigerated preservation atmosphere is equal to the oxygen concentration in the atmospheric environment where the refrigerator is located.

[0135] The following takes the box body provided with the first preservation space 101 and the second preservation space 102 as an example for illustration.

[0136] Combined with Figure 5 , when the refrigerator is in the first preservation mode, the first gas path control system 200 is configured to connect the first preservation space 101 and the intake port of the gas path 110, the second gas path control system 300 is configured to connect the second preservation space 102 and the outlet port of the gas path 110, and the gas driving device 130 is configured to drive the oxygen in the first preservation space 101 through the oxygen-permeable membrane 120 and introduce it into the second preservation space 102 via the gas path 110, so that the oxygen concentration in the first preservation space 101 is lower than the oxygen concentration in the atmospheric environment, and the oxygen concentration in the second preservation space 102 is higher than the oxygen concentration in the atmospheric environment. In this way, a low-oxygen preservation atmosphere is formed in the first preservation space 101, and a high-oxygen preservation atmosphere is formed in the second preservation space 102.

[0137] Combined with Figure 6 , when the refrigerator is in the second preservation mode, the first gas path control system 200 is configured to connect the external space outside the refrigerator preservation space and the intake port of the gas path 110, so that the oxygen concentration in the first preservation space 101 is equal to the oxygen concentration in the atmospheric environment; the second gas path control system 300 is configured to connect the second preservation space 102 and the outlet port of the gas path 110, and the gas driving device 130 is configured to drive the oxygen in the external space through the oxygen-permeable membrane 120 and introduce it into the second preservation space 102, so that the oxygen concentration in the second preservation space 102 is higher than the oxygen concentration in the atmospheric environment. In this way, a conventional refrigerated preservation atmosphere is formed in the first preservation space 101, and a high-oxygen preservation atmosphere is formed in the second preservation space 102.

[0138] Combined with Figure 7, when the refrigerator is in the third fresh-keeping mode, the first gas path control system 200 is configured to connect the first fresh-keeping space 101 and the air inlet of the gas path 110, the second gas path control system 300 is configured to connect the air outlet of the gas path 110 and the external space, and the gas driving device 130 is configured to drive the oxygen in the first fresh-keeping space 101 through the oxygen-permeable membrane 120 and export it to the external space outside the refrigerator fresh-keeping space through the gas path 110, so that the oxygen concentration in the first fresh-keeping space 101 is lower than the oxygen concentration in the atmospheric environment, and the oxygen concentration in the second fresh-keeping space 102 is equal to the oxygen concentration in the atmospheric environment. In this way, a low-oxygen fresh-keeping atmosphere is formed in the first fresh-keeping space 101, and a conventional refrigerated fresh-keeping atmosphere is formed in the second fresh-keeping space 102.

[0139] Figures 5 to 7 The dotted arrows in the figure represent the flow direction of the gas.

[0140] It should be noted here that when the first fresh-keeping space 101 is in a low-oxygen atmosphere, the first fresh-keeping space 101 can be in a low-pressure environment, that is, the pressure in the first fresh-keeping space 101 can be lower than the atmospheric pressure in the atmospheric environment.

[0141] An opening and closing mechanism can be provided between the first drawer 30 and the chamber wall of the first chamber. The opening and closing mechanism is configured to intake air into the first fresh-keeping space 101 when the first drawer 30 is pulled out, improving the convenience of pulling out the first drawer 30.

[0142] When the second fresh-keeping space 102 is in a high-oxygen atmosphere, the second fresh-keeping space 102 can be in a high-pressure environment, that is, the pressure in the second fresh-keeping space 102 can be lower than the atmospheric pressure in the atmospheric environment.

[0143] A locking mechanism can be provided between the second drawer 40 and the chamber wall of the second chamber, so that the second drawer 40 is stably located in the second chamber, reducing the possibility of the second drawer 40 popping out of the second chamber under high pressure.

[0144] Through the above settings, the refrigerator according to the embodiment of the present application uses the oxygen-permeable membrane 120 to separate oxygen, and uses one gas driving device 130 and two gas path control systems to realize different fresh-keeping atmospheres in two fresh-keeping spaces, improving the diversity of the fresh-keeping environment and the flexibility of use, and can also make full use of the drawer space in the refrigerator. Moreover, when the oxygen separated from one fresh-keeping space is introduced into another fresh-keeping space, the fresh-keeping atmospheres of low oxygen and high oxygen are realized simultaneously, realizing the reuse of the separated oxygen and improving the energy utilization rate.

[0145] Moreover, through the setting of the first gas path control system 200, oxygen in the external space outside the fresh-keeping space of the refrigerator can enter the fresh-keeping space through the oxygen-permeable membrane 120. Through the setting of the second gas path control system 300, the separated oxygen in the fresh-keeping space can be discharged to the external space outside the fresh-keeping space of the refrigerator, so that there is a large adjustment space for the oxygen concentration in the fresh-keeping space.

[0146] Furthermore, in addition to adjusting the oxygen concentration, the fresh-keeping environment of at least two fresh-keeping spaces can be personalized and flexibly set according to the temperature, humidity, etc. of at least two fresh-keeping spaces, which is beneficial to improving the fresh-keeping effect.

[0147] In some embodiments, the refrigerating compartment 103 of the refrigerator forms the external space outside the above-mentioned fresh-keeping space of the refrigerator. In this way, the air inlet of the air path 110 can be selectively connected to one of at least two fresh-keeping spaces or to the refrigerating compartment 103 through the first gas path control system 200; the air outlet of the air path 110 can be selectively connected to the other of at least two fresh-keeping spaces or to the refrigerating compartment 103 through the second gas path control system 300.

[0148] Combined Figure 8 , the gas regulation component 100 may further include: a second air pipe 410, the first end of the second air pipe 410 is connected to the refrigerating compartment 103, and the second end of the second air pipe 410 is connected to the first gas path control system 200.

[0149] In some embodiments, a communication port 1031 is provided on the rear wall of the refrigerating compartment 103, and the communication port 1031 is communicated with the first end of the second air pipe 410. The connection method between the second air pipe 410 and the rear wall of the refrigerating compartment 103 includes but is not limited to snap connection, threaded connection, etc. to realize the communication between the communication port 1031 and the second air pipe 410.

[0150] When the refrigerator is in the second fresh-keeping mode, the first gas path control system 200 is configured to connect the second air pipe 410 and the air inlet of the air path 110 to connect the first fresh-keeping space 101 and the refrigerating compartment 103.

[0151] It can be understood that when the refrigerator is in the second fresh-keeping mode, the oxygen in the refrigerating compartment 103 passes through the second air pipe 410, the first gas path control system 200 and the air path 110 through the oxygen-permeable membrane 120. Such a setting can keep the temperature of the oxygen entering the second fresh-keeping space 102 relatively low and reduce the influence of the temperature of the oxygen entering the second fresh-keeping space 102 on the fresh-keeping temperature.

[0152] In some embodiments, continue to refer to Figure 8, the controlled atmosphere component 100 may further include: a third air pipe 420, a first end of the third air pipe 420 communicates with the refrigerated compartment 103, and a second end of the third air pipe 420 is connected to the second air path control system 300.

[0153] In some embodiments, a communication port 1031 is provided on the rear wall of the refrigerated compartment 103, and the communication port 1031 communicates with the first end of the third air pipe 420. The connection manner between the third air pipe 420 and the rear wall of the refrigerated compartment 103 includes but is not limited to snap connection, threaded connection, etc., so as to realize the communication between the communication port 1031 and the third air pipe 420.

[0154] When the refrigerator is in the third fresh-keeping mode, the second air path control system 300 is configured to connect the third air pipe 420 and the air outlet of the air path 110, so that the oxygen passing through the oxygen-permeable membrane 120 is discharged to the refrigerated compartment 103 through the air path 110 and the third air pipe 420.

[0155] It can be understood that when the refrigerator is in the third fresh-keeping mode, the oxygen separated from the air in the first fresh-keeping space 101 through the oxygen-permeable membrane 120 is discharged to the refrigerated compartment 103 through the air path 110, the second air path control system 300 and the third air pipe 420, and the relatively low-temperature oxygen is reused, avoiding energy waste caused by discharging the relatively low-temperature oxygen outside the refrigerator.

[0156] Continue to refer to Figure 3 , in some embodiments, the first air path control system 200 may have: at least two first inlets 211, one of the at least two first inlets 211 communicates with one of the at least two fresh-keeping spaces, and the other of the at least two first inlets 211 communicates with the outside space.

[0157] The first air path control system 200 may have: a first outlet 212, and the first outlet 212 communicates with the air inlet of the air path 110.

[0158] The first air path control system 200 is configured to selectively connect one of the first inlets 211 and the first outlet 212.

[0159] When the refrigerator is in the first fresh-keeping mode and the third fresh-keeping mode, the first air path control system 200 is configured to connect one of the first inlets 211 and the first outlet 212, so that the first fresh-keeping space 101 and the air inlet of the air path 110 are connected.

[0160] In this way, when the refrigerator is in the first fresh-keeping mode and the third fresh-keeping mode, the first fresh-keeping space 101 and the air inlet of the air path 110 are connected, so that the air in the first fresh-keeping space 101 can reach the oxygen-permeable membrane 120 through the air path 110, and the oxygen can pass through the oxygen-permeable membrane 120.

[0161] When the refrigerator is in the second fresh-keeping mode, the first gas path control system 200 is configured to connect another first inlet 211 and the first outlet 212, so that the external space is connected to the air inlet of the gas path 110.

[0162] Combined with Figure 8 , when the refrigerator is in the second fresh-keeping mode, the first gas path control system 200 is configured to connect the refrigerating compartment 103 and the air inlet of the gas path 110, so that the air in the refrigerating compartment 103 can reach the oxygen-permeable membrane 120 through the gas path 110, and oxygen can permeate through the oxygen-permeable membrane 120.

[0163] In this embodiment, the three ports of the first gas path control system 200 are used to selectively connect the first fresh-keeping space 101 and the air inlet of the gas path 110, or the external space and the air inlet of the gas path 110, so that the oxygen in the second fresh-keeping space 102 can be selectively sourced from the first fresh-keeping space 101 or the external space outside the refrigerator fresh-keeping space. It can not only use the oxygen in the first fresh-keeping space 101 to increase the oxygen concentration in the second fresh-keeping space 102, but also use the oxygen in the external space outside the refrigerator fresh-keeping space to expand the adjustment range of the oxygen concentration in the second fresh-keeping space 102. Moreover, the first fresh-keeping space 101 can be used as a conventional storage space, enriching the storage environment of the refrigerator and meeting the diverse storage environment needs of users.

[0164] In some embodiments, the first gas path control system 200 includes a first shunt valve 210. The first shunt valve 210 can be an electromagnetic three-way valve, and the connection state of the three ports can be adjusted by adjusting the valve core.

[0165] The setting of a single first shunt valve 210 has a simple pipeline design, small installation space occupation, and low cost. It can also reduce the pipeline connection points and reduce the risk of air leakage.

[0166] Combined with Figure 9 , in some embodiments, the first gas path control system 200 may include: a first pipe body 220. The first pipe body 220 is respectively connected to the air inlet of the gas path 110 and the first fresh-keeping space 101, and the first pipe body 220 is also used to be connected to the external space outside the refrigerator fresh-keeping space. Two switching valves can be arranged on the first pipe body 220. By adjusting the opening and closing of the two switching valves, the air inlet of the gas path 110 can be selectively connected to the first fresh-keeping space 101 or the external space outside the refrigerator fresh-keeping space.

[0167] The first pipe body 220 may include: a first outlet branch pipe 221. The first end of the first outlet branch pipe 221 is connected to the air inlet of the gas path 110. The connection mode between the first outlet branch pipe 221 and the gas path 110 includes but is not limited to threaded connection, flange connection, clamping, etc. The first outlet branch pipe 221 is configured to form the first outlet 212 of the first gas path control system 200.

[0168] The first tube body 220 may include: a first intake branch pipe 222, a first end of the first intake branch pipe 222 communicates with the first fresh-keeping space 101, and a second end of the first intake branch pipe 222 communicates with a second end of the first outlet branch pipe 221.

[0169] The first tube body 220 may include: a second intake branch pipe 223, a first end of the second intake branch pipe 223 communicates with a second end of the first outlet branch pipe 221, and a second end of the second intake branch pipe 223 is used to communicate with an external space outside the fresh-keeping space of the refrigerator. Exemplarily, the second end of the second intake branch pipe 223 communicates with the second air pipe 410, and at this time, the refrigerating compartment 103 is the external space outside the fresh-keeping space of the refrigerator.

[0170] The first intake branch pipe 222 and the second intake branch pipe 223 are configured to form two first inlets 211 of the first air path control system 200.

[0171] The first air path control system 200 may include: a first switching valve 230, and the first switching valve 230 is installed on the first intake branch pipe 222. When the first switching valve 230 is configured to be opened, the first intake branch pipe 222 is configured to be conductive; when the first switching valve 230 is configured to be closed, the first intake branch pipe 222 is configured to be cut off.

[0172] The first air path control system 200 may include: a second switching valve 240, and the second switching valve 240 is installed on the second intake branch pipe 223. When the second switching valve 240 is configured to be opened, the second intake branch pipe 223 is configured to be conductive; when the second switching valve 240 is configured to be closed, the second intake branch pipe 223 is configured to be cut off.

[0173] When the refrigerator is in the first fresh-keeping mode and the third fresh-keeping mode, the first switching valve 230 is configured to be opened, and the second switching valve 240 is configured to be closed, so that the first fresh-keeping space 101 and the air inlet of the air path 110 are communicated through the first intake branch pipe 222 and the first outlet branch pipe 221. Thus, when the refrigerator is in the first fresh-keeping mode and the third fresh-keeping mode, the air in the first fresh-keeping space 101 reaches the oxygen-permeable membrane 120 through the first intake branch pipe 222, the second outlet branch pipe 322, and the air path 110, and the oxygen therein permeates through the oxygen-permeable membrane 120, thereby reducing the oxygen concentration in the first fresh-keeping space 101 and making the first fresh-keeping space 101 form a low-oxygen fresh-keeping atmosphere.

[0174] When the refrigerator is in the second fresh-keeping mode, the first switching valve 230 is configured to be closed, and the second switching valve 240 is configured to be open, so that the air inlet of the air passage 110 communicates with the external space outside the fresh-keeping space of the refrigerator through the second intake branch pipe 223 and the first outlet branch pipe 221. Thus, when the refrigerator is in the second fresh-keeping mode, the air in the external space outside the fresh-keeping space of the refrigerator reaches the oxygen-permeable membrane 120 through the second intake pipe and the first outlet branch pipe 221, and the oxygen therein permeates through the oxygen-permeable membrane 120, thereby reducing the oxygen concentration in the first fresh-keeping space 101 and making the first fresh-keeping space 101 form a low-oxygen fresh-keeping atmosphere.

[0175] Through the above settings, by controlling the opening and closing of the two switching valves, it is realized that the air inlet of the air passage 110 can be selectively connected to the first fresh-keeping space 101 or the external space outside the fresh-keeping space of the refrigerator. Compared with the single first diverter valve 210, the setting of the two switching valves makes the flow control and function switching more flexible. The two switching valves are independently controlled, increasing the flexibility and reliability of the first air passage control system 200.

[0176] Continue to refer to Figure 3 , in some embodiments, the second air passage control system 300 may have: a second inlet 311, and the second inlet 311 communicates with the air outlet port of the air passage 110.

[0177] The second air passage control system 300 may have: at least two second outlets 312, and one of the at least two second outlets 312 communicates with one of the at least two fresh-keeping spaces, and the other of the at least two second outlets 312 communicates with the external space outside the fresh-keeping space of the refrigerator.

[0178] The second air passage control system 300 is configured to selectively connect one of the second outlets 312 to the second inlet 311.

[0179] When the refrigerator is in the first fresh-keeping mode and the second fresh-keeping mode, the second air passage control system 300 is configured to connect the second inlet 311 and one of the first outlets 212, so that the second fresh-keeping space 102 communicates with the air outlet of the air passage 110.

[0180] Thus, when the refrigerator is in the first fresh-keeping mode and the second fresh-keeping mode, the second fresh-keeping space 102 communicates with the air outlet of the air passage 110, so that the oxygen permeating through the oxygen-permeable membrane 120 enters the second fresh-keeping space 102 through the air passage 110, forming a storage environment with a high oxygen concentration in the second fresh-keeping space 102.

[0181] When the refrigerator is in the third fresh-keeping mode, the second air passage control system 300 is configured to connect the first inlet 211 and the other first outlet 212, so that the external space outside the fresh-keeping space of the refrigerator communicates with the air outlet of the air passage 110.

[0182] Combined with Figure 8 When the refrigerator is in the third fresh-keeping mode, the second gas path control system 300 is configured to connect the refrigerating compartment 103 and the air outlet of the gas path 110, so that the oxygen separated from the first fresh-keeping space 101 can be discharged to the refrigerating compartment 103 via the gas path 110 and the third air pipe 420. While achieving a low-oxygen concentration preservation environment in the first fresh-keeping space 101, the relatively low-temperature oxygen is reused to ensure a relatively low refrigeration temperature in the refrigerating compartment 103.

[0183] In this embodiment, by using the three ports of the second gas path control system 300, the connection between the second fresh-keeping space 102 and the air outlet of the gas path 110 can be selectively achieved, or the connection between the external space outside the fresh-keeping space of the refrigerator and the air outlet of the second air pipe 410 can be achieved, so that the oxygen in the first fresh-keeping space 101 can selectively enter the second fresh-keeping space 102 or the external space outside the fresh-keeping space of the refrigerator. It can not only increase the oxygen concentration in the second fresh-keeping space 102 by using the oxygen in the first fresh-keeping space 101, but also discharge the oxygen in the first fresh-keeping space 101 to the external space outside the fresh-keeping space of the refrigerator, so that the second fresh-keeping space 102 can be used as a conventional storage space, enriching the storage environment of the refrigerator and meeting the diverse storage environment requirements of users.

[0184] In some embodiments, the second gas path control system 300 includes a second shunt valve 310. The second shunt valve 310 can be an electromagnetic three-way valve, and by adjusting the valve core, the connection state of the three ports can be adjusted.

[0185] The setting of a single second shunt valve 310 has a simple pipeline design, small installation space occupation, and low cost. It can also reduce the pipeline connection points and reduce the risk of air leakage.

[0186] Continuing to refer to Figure 9 In some embodiments, the second gas path control system 300 may include: a second pipe body 320. The second pipe body 320 is respectively connected to the air outlet of the gas path 110 and the second fresh-keeping space 102, and the second pipe body 320 is also used to be connected to the external space outside the fresh-keeping space of the refrigerator. Two switching valves can be arranged on the second pipe body 320. By adjusting the opening and closing of the two switching valves, the air outlet of the gas path 110 can be selectively connected to the second fresh-keeping space 102 or the external space outside the fresh-keeping space of the refrigerator.

[0187] The second pipe body 320 may include: a third intake branch pipe 321. The first end of the third intake branch pipe 321 is connected to the air outlet of the gas path 110. The third intake branch pipe 321 is configured to form a second inlet 311 of the second gas path control system 300.

[0188] The second tube body 320 may include: a second air outlet branch pipe 322, a first end of the second air outlet branch pipe 322 communicates with a second end of the third air inlet branch pipe 321, and a second end of the second air outlet branch pipe 322 communicates with the second fresh-keeping space 102.

[0189] The second tube body 320 may include: a third air outlet branch pipe 323, a first end of the third air outlet branch pipe 323 communicates with a second end of the third air inlet branch pipe 321, and a second end of the third air outlet branch pipe 323 is configured to communicate with an external space outside the fresh-keeping space of the refrigerator. Exemplarily, the second end of the third air outlet branch pipe 323 communicates with the third air pipe 420, and at this time, the refrigerating compartment 103 is the external space outside the fresh-keeping space of the refrigerator.

[0190] The second air outlet branch pipe 322 and the third air outlet branch pipe 323 are configured to form two second outlets 312 of the second air path control system 300.

[0191] The second air path control system 300 may include a third switching valve 330, and the third switching valve 330 is installed on the second air outlet branch pipe 322. When the third switching valve 330 is configured to be open, the second air outlet branch pipe 322 is conducting; when the third switching valve 330 is configured to be closed, the second air outlet branch pipe 322 is configured to be cut off.

[0192] The second air path control system 300 may include a fourth switching valve 340, and the fourth switching valve 340 is installed on the third air outlet branch pipe 323; when the fourth switching valve 340 is configured to be open, the third air outlet branch pipe 323 is conducting; when the fourth switching valve 340 is configured to be closed, the third air outlet branch pipe 323 is configured to be cut off.

[0193] When the refrigerator is in the first fresh-keeping mode and the second fresh-keeping mode, the third switching valve 330 is configured to be open, and the fourth switching valve 340 is configured to be closed, so that the second fresh-keeping space 102 and the air outlet of the air path 110 are communicated through the third air inlet branch pipe 321 and the second air outlet branch pipe 322. Thus, when the refrigerator is in the first fresh-keeping mode and the second fresh-keeping mode, the oxygen passing through the oxygen-permeable membrane 120 enters the second fresh-keeping space 102 through the third air inlet branch pipe 321 and the second air outlet branch pipe 322, thereby increasing the oxygen concentration in the second fresh-keeping space 102 and making the second fresh-keeping space 102 form a high-oxygen fresh-keeping atmosphere.

[0194] When the refrigerator is in the third fresh-keeping mode, the third switching valve 330 is configured to be closed, and the fourth switching valve 340 is configured to be opened, so that the air outlet of the air path 110 communicates with the external space outside the fresh-keeping space of the refrigerator through the third intake branch pipe 321 and the third outlet branch pipe 323. Thus, when the refrigerator is in the third fresh-keeping mode, the oxygen passing through the oxygen-permeable membrane 120 is discharged to the external space outside the fresh-keeping space of the refrigerator through the third intake branch pipe 321 and the third outlet branch pipe 323. While reducing the oxygen concentration in the first fresh-keeping space 101, a conventional storage environment is formed in the second fresh-keeping space 102.

[0195] Through the above settings, by controlling the opening and closing of the two switching valves, it is realized that the air outlet of the air path 110 can be selectively communicated with the second fresh-keeping space 102 or the external space outside the fresh-keeping space of the refrigerator. Compared with the single first shunt valve 210, the setting of the two switching valves makes the flow control and function switching more flexible. The two switching valves are independently controlled, increasing the flexibility and reliability of the second air path control system 300.

[0196] In some embodiments, at least three relatively airtight fresh-keeping spaces are provided in the box body. For example, a first fresh-keeping space 101, a second fresh-keeping space 102, and a third fresh-keeping space 104 are provided in the box body.

[0197] Wherein, the air inlet of the air path 110 can be selectively communicated with at least two of the at least three fresh-keeping spaces, or communicated with the external space through the first air path control system 200.

[0198] The air outlet of the air path 110 can be selectively communicated with another one of the at least three fresh-keeping spaces, or communicated with the external space through the second air path control system 300. The fresh-keeping space communicated with the air outlet through the second air path control system 300 is different from the fresh-keeping space communicated with the air inlet through the first air path control system 200.

[0199] In some embodiments, the air inlet can be selectively communicated with at least two of the at least two fresh-keeping spaces through the first air path control system 200 at the same time, so that these at least two fresh-keeping spaces have the same fresh-keeping atmosphere.

[0200] For example Figure 10 , in some embodiments, a third fresh-keeping space 104 is further formed in the refrigerator; the refrigerator further includes a sixth air pipe 450. The first end of the sixth air pipe 450 communicates with the third fresh-keeping space 104, and the second end of the sixth air pipe 450 communicates between the first air path control system 200 and the first fresh-keeping space 101. Thus, the third fresh-keeping space 104 communicates between the first air path control system 200 and the first fresh-keeping space 101 through the sixth air pipe 450.

[0201] With the above settings, the third fresh-keeping space 104 can form the same fresh-keeping atmosphere as the first fresh-keeping space 101, and expand the fresh-keeping volume of the fresh-keeping environment same as that of the first fresh-keeping space 101.

[0202] In some other embodiments, the air inlet can be selectively connected to at least two of the at least two fresh-keeping spaces through the first air path control system 200, and the first air path control system 200 is configured to control these two fresh-keeping spaces to form different fresh-keeping atmospheres.

[0203] Combined Figure 11 , in some embodiments, the first air path control system 200 may include: a fourth air pipe 430, a first end of the fourth air pipe 430 is connected to the third fresh-keeping space 104, and a second end of the fourth air pipe 430 is connected to the air inlet of the air path 110.

[0204] The first air path control system 200 may include: a third valve structure 510, the third valve structure 510 is installed on the fourth air pipe 430. The third valve structure 510 is configured to control the on and off of the fourth air pipe 430.

[0205] Exemplarily, the third valve structure 510 may be an electromagnetic switch valve, which has a simple structure and is convenient to control.

[0206] The third valve structure 510 and the fourth air pipe 430 may be located inside the box body 10 to reduce the influence of the third valve structure 510 on the storage space.

[0207] Wherein, when the third valve structure 510 is configured to be opened and the gas driving device 130 is configured to be started, the third fresh-keeping space 104 is communicated with the air inlet of the air path 110 through the fourth air pipe 430, and the oxygen in the third fresh-keeping space 104 is driven through the oxygen permeable membrane 120, so that the oxygen concentration in the third fresh-keeping space 104 is lower than the oxygen concentration in the atmospheric environment.

[0208] When the refrigerator is in the first fresh-keeping mode, the third valve structure 510 may be configured to be opened. At this time, under the action of the gas driving device 130, the gas in the third fresh-keeping space 104 enters the air path 110 through the fourth air pipe 430, and the oxygen therein permeates through the oxygen permeable membrane 120. At this time, the oxygen concentration in the third fresh-keeping space 104 is lower than the oxygen concentration in the atmospheric environment, so as to form a low-oxygen fresh-keeping atmosphere in the third fresh-keeping space 104. In this way, the first fresh-keeping space 101 and the third fresh-keeping space 104 form a low-oxygen fresh-keeping atmosphere, the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere, and the three drawers of the refrigerator form a high-oxygen fresh-keeping environment and two low-oxygen fresh-keeping environments.

[0209] It can be understood that by controlling the first gas path control system 200, the oxygen concentrations in the first fresh-keeping space 101 and the third fresh-keeping space 104 can be made different, forming a low-oxygen fresh-keeping environment with different oxygen concentrations.

[0210] When the refrigerator is in the first fresh-keeping mode, the third valve structure 510 can be configured to be closed. At this time, the oxygen concentration in the third fresh-keeping space 104 can be equal to the oxygen concentration in the atmospheric environment. At this time, the third drawer is a conventional fresh-keeping drawer. In this way, the first fresh-keeping space 101 forms a low-oxygen fresh-keeping atmosphere, the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere, and the third fresh-keeping space 104 forms a conventional refrigerated fresh-keeping atmosphere. The three drawers of the refrigerator respectively form a low-oxygen fresh-keeping environment, a high-oxygen fresh-keeping environment, and a conventional fresh-keeping environment.

[0211] When the refrigerator is in the first fresh-keeping mode, the third valve structure 510 can be configured to be open. At this time, the oxygen concentrations in both the first fresh-keeping space 101 and the third fresh-keeping space 104 are lower than the oxygen concentration in the atmospheric environment. In this way, the first fresh-keeping space 101 and the third fresh-keeping space 104 form a low-oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere.

[0212] Of course, when the refrigerator is in the second fresh-keeping mode, the third valve structure 510 can be configured to be closed. At this time, both the third fresh-keeping space 104 and the first fresh-keeping space 101 are in a conventional refrigerated fresh-keeping atmosphere. Or, the third valve structure 510 can be configured to be open. At this time, the third fresh-keeping space 104 is communicated with the gas path 110 through the fourth air pipe 430, and the third fresh-keeping space 104 forms a low-oxygen fresh-keeping atmosphere. The first fresh-keeping space 101 forms a conventional refrigerated fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere. The third fresh-keeping space 104 forms a low-oxygen fresh-keeping atmosphere. In this way, the three drawers of the refrigerator respectively form a low-oxygen fresh-keeping environment, a high-oxygen fresh-keeping environment, and a conventional fresh-keeping environment.

[0213] When the refrigerator is in the third fresh-keeping mode, the third valve structure 510 can be configured to be open. At this time, both the third fresh-keeping space 104 and the first fresh-keeping space 101 are in a low-oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 is in a conventional refrigerated fresh-keeping atmosphere. Or, the third valve structure 510 can be configured to be closed. At this time, both the third fresh-keeping space 104 and the second fresh-keeping space 102 are in a conventional refrigerated fresh-keeping atmosphere, and the first fresh-keeping space 101 is in a low-oxygen fresh-keeping atmosphere.

[0214] In some embodiments, at least three relatively airtight fresh-keeping spaces are provided inside the box body. Among them, the air outlet of the gas path 110 can be selectively communicated to at least two of the at least three fresh-keeping spaces through the second gas path control system 300, or communicated to the outside space.

[0215] The air inlet of the air duct 110 can be selectively connected to another one of at least three fresh-keeping spaces or to the external space through the first air duct control system 200.

[0216] The fresh-keeping space to which the air inlet is connected through the first air duct control system 200 is different from the fresh-keeping space to which the air outlet is connected through the second air duct control system 300.

[0217] In some embodiments, the first air duct control system 200 and the second air duct control system 300 can be connected to the cavity wall of the same fresh-keeping space, so that the fresh-keeping space can be selectively connected to the first air duct control system 200 or the second air duct control system 300 through the first air duct control system 200 and the second air duct control system 300.

[0218] In some embodiments, the air outlet of the air duct 110 can be selectively connected to at least two of at least three fresh-keeping spaces through the second air duct control system 300 at the same time, so that the at least two fresh-keeping spaces have the same fresh-keeping atmosphere.

[0219] For example Figure 12 , in some embodiments, the refrigerator further includes a seventh air duct 460. The first end of the seventh air duct 460 is connected to the third fresh-keeping space 104, and the second end of the seventh air duct 460 is connected between the second air duct control system 300 and the second fresh-keeping space 102. In this way, the third fresh-keeping space 104 is connected between the second air duct control system 300 and the second fresh-keeping space 102 through the seventh air duct 460.

[0220] Through the above settings, the third fresh-keeping space 104 can form the same fresh-keeping atmosphere as the second fresh-keeping space 102, and expand the fresh-keeping volume of the fresh-keeping environment same as that of the second fresh-keeping space 102.

[0221] In some other embodiments, the air outlet can be selectively connected to at least two of at least two fresh-keeping spaces through the second air duct control system 300, and the second air duct control system 300 is configured to control the two fresh-keeping spaces to form different fresh-keeping atmospheres.

[0222] Combined again Figure 11 , in some embodiments, the second air duct control system 300 can include: a fifth air duct 440. The first end of the fifth air duct 440 is connected to the third fresh-keeping space 104, and the second end of the fifth air duct 440 is connected to the air outlet of the air duct 110.

[0223] The second air duct control system 300 can include: a fourth valve structure 520. The fourth valve structure 520 is installed on the fifth air duct 440. The fourth valve structure 520 is configured to control the on and off of the fifth air duct 440.

[0224] Exemplarily, the fourth valve structure 520 can be an electromagnetic on-off valve, which has a simple structure and is convenient to control.

[0225] Wherein, when the fourth valve structure 520 is configured to be opened and the gas driving device 130 is configured to be started, the third fresh-keeping space 104 is communicated with the air outlet of the air path 110 through the fifth air pipe 440, and the oxygen permeating through the oxygen permeable membrane 120 is driven into the third fresh-keeping space 104, so that the oxygen concentration in the third fresh-keeping space 104 is higher than the oxygen concentration in the atmospheric environment.

[0226] When the refrigerator is in the first fresh-keeping mode, the fourth valve structure 520 and the third valve structure 510 can be configured to be closed, and at this time, a conventional refrigerated fresh-keeping atmosphere is formed in the third fresh-keeping space 104.

[0227] When the refrigerator is in the first fresh-keeping mode, the fourth valve structure 520 can be configured to be opened and the third valve structure 510 can be configured to be closed. Under the action of the gas driving device 130, part of the oxygen permeating through the oxygen permeable membrane 120 enters the second fresh-keeping space 102 through the second air path control system 300, and another part of the oxygen enters the third fresh-keeping space 104 through the fifth air pipe 440, so as to form a high-oxygen fresh-keeping atmosphere in the second fresh-keeping space 102 and the third fresh-keeping space 104 at the same time.

[0228] In some embodiments, the oxygen in the first fresh-keeping space 101 may not be sufficient to supply the second fresh-keeping space 102 and the third fresh-keeping space 104. For this reason, the first air path control system 200 can be configured first to connect the first fresh-keeping space 101 with the air inlet of the air path 110 to provide oxygen for the second fresh-keeping space 102 and the third fresh-keeping space 104; then the first air path control system 200 can be configured to connect the refrigerated compartment 103 with the air inlet of the air path 110, so as to continue to provide oxygen for the second fresh-keeping space 102 and the third fresh-keeping space 104. At this time, a low-oxygen fresh-keeping atmosphere is formed in the first fresh-keeping space 101, and a high-oxygen fresh-keeping atmosphere is formed in the second fresh-keeping space 102 and the third fresh-keeping space 104.

[0229] In other embodiments, the first air path control system 200 is directly configured to connect the refrigerated compartment 103 with the air inlet of the air path 110, so as to provide oxygen for the second fresh-keeping space 102 and the third fresh-keeping space 104. At this time, a conventional refrigerated fresh-keeping atmosphere is formed in the first fresh-keeping space 101, and a high-oxygen fresh-keeping atmosphere is formed in the second fresh-keeping space 102 and the third fresh-keeping space 104.

[0230] When the first air path control system 200 is configured to connect the refrigerated compartment 103 with the air inlet of the air path 110, the fourth valve structure 520 can also be configured to be closed. In this way, a conventional refrigerated fresh-keeping atmosphere is formed in the first fresh-keeping space 101 and the third fresh-keeping space 104, and a high-oxygen fresh-keeping atmosphere is formed in the second fresh-keeping space 102.

[0231] When the refrigerator is in the third fresh-keeping mode, the fourth valve structure 520 can be configured to open, and the third valve structure 510 is configured to close, so that a part of the oxygen passing through the oxygen-permeable membrane 120 enters the third fresh-keeping space 104 through the fifth air pipe 440. In this way, a low-oxygen fresh-keeping atmosphere is formed in the first fresh-keeping space 101, a conventional refrigerated fresh-keeping atmosphere is formed in the second fresh-keeping space 102, and a high-oxygen fresh-keeping atmosphere is formed in the third fresh-keeping space 104.

[0232] When the refrigerator is in the third fresh-keeping mode, the fourth valve structure 520 and the third valve structure 510 can both be configured to close, so that all the oxygen passing through the oxygen-permeable membrane 120 is discharged to the external space through the second gas path control system 300. In this way, a low-oxygen fresh-keeping atmosphere is formed in the first fresh-keeping space 101, and conventional refrigerated fresh-keeping atmospheres are formed in both the second fresh-keeping space 102 and the third fresh-keeping space 104.

[0233] It should be noted that when the refrigerator includes both the third valve structure 510 and the fourth valve structure 520, either the third valve structure 510 or the fourth valve structure 520 is opened. That is, when the third valve structure 510 is configured to open, the fourth valve structure 520 is configured to close; when the third valve structure 510 is configured to close, the fourth valve structure 520 is configured to open. In this way, the third fresh-keeping space 104 can be selectively connected to the outlet of the air path 110 through the second gas path control system 300, or connected to the inlet of the air path 110 through the first gas path control system 200.

[0234] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0235] For the sake of convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, Comprising: A box body (10); At least two relatively airtight fresh-keeping spaces are arranged inside the box body (10); An air-conditioning component (100) having an air path (110); an air inlet and an air outlet are respectively arranged at both ends of the air path (110); A gas driving device (130) is arranged inside the air path (110), and the gas driving device (130) can drive gas to flow from the air inlet to the air outlet; An oxygen-permeable membrane (120) is arranged inside the air path (110), and the oxygen-permeable membrane (120) is configured to allow oxygen in the air on the air inlet side to permeate to the air outlet side; Wherein, the air inlet can be selectively connected to one of the at least two fresh-keeping spaces or to the external space outside the fresh-keeping space of the refrigerator through a first air path control system (200); The air outlet can be selectively connected to the other of the at least two fresh-keeping spaces or to the external space through a second air path control system (300).

2. The refrigerator according to claim 1, characterized in that, When the air inlet is connected to one of the at least two fresh-keeping spaces through the first air path control system (200), the air outlet is connected to the other of the at least two fresh-keeping spaces through the second air path control system (300).

3. The refrigerator according to claim 1, characterized in that, When the air inlet is connected to the external space through the first air path control system (200), the air outlet is connected to the other of the at least two fresh-keeping spaces through the second air path control system (300).

4. The refrigerator according to claim 1, characterized in that, When the air inlet is connected to one of the at least two fresh-keeping spaces through the first air path control system (200), the air outlet is connected to the external space through the second air path control system (300).

5. The refrigerator according to any one of claims 1 to 4, characterized in that, Along the flowing direction of the gas in the air path (110), the gas driving device (130) is located downstream of the oxygen-permeable membrane (120).

6. The refrigerator according to claim 5, characterized in that, A fan (140) is arranged inside the air path (110); along the flowing direction of the gas in the air path (110), the fan (140) is located upstream of the oxygen-permeable membrane (120).

7. The refrigerator according to any one of claims 1 to 4, characterized in that, The first air path control system (200) has: At least two first inlets (211), one of the at least two first inlets (211) is connected to one of the at least two fresh-keeping spaces; the other of the at least two first inlets (211) is connected to the external space; A first outlet (212), and the first outlet (212) is connected to the air inlet; Wherein, the first air path control system (200) is configured to selectively connect one of the first inlets (211) to the first outlet (212).

8. The refrigerator according to any one of claims 1-4, characterized in that, The second air path control system (300) has: At least two second outlets (312), one of the at least two second outlets (312) is connected to one of the at least two fresh-keeping spaces, and the other of the at least two second outlets (312) is connected to the external space; A second inlet (311), and the second inlet (311) is connected to the air outlet; Wherein, the second air path control system (300) is configured to selectively connect one of the second outlets (312) to the second outlet (312).

9. The refrigerator according to any one of claims 1 to 4, characterized in that, At least three relatively airtight fresh-keeping spaces are provided inside the box body (10); The air inlet can be selectively connected to at least two of the at least three fresh-keeping spaces or to the external space through the first air path control system (200).

10. The refrigerator according to any one of claims 1 to 4, characterized in that, At least three relatively airtight fresh-keeping spaces are provided inside the box body (10); The air outlet can be selectively connected to at least two of the at least three fresh-keeping spaces or to the external space through the second air path control system (300).

11. The refrigerator according to any one of claims 1-4, characterized in that, The box body (10) is constructed to form a refrigerating compartment (103), and the refrigerating compartment (103) forms the external space outside the fresh-keeping space of the refrigerator.

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