CN223106352U

CN223106352U - refrigerator

Info

Publication number: CN223106352U
Application number: CN202422377187.9U
Authority: CN
Inventors: 胡哲; 许锦潮; 宾丽敏
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2024-09-27
Filing date: 2024-09-27
Publication date: 2025-07-15
Anticipated expiration: 2034-09-27

Abstract

The application provides an embodiment, belongs to the technical field of household appliances, and provides a refrigerator. The refrigerator is characterized in that at least two relatively closed fresh-keeping spaces are arranged in the refrigerator body, a channel is provided for gas flow through the gas channel of the gas regulating component, gas is driven to flow from the gas inlet to the gas outlet by the gas driving device, oxygen in air at the gas inlet side is enabled to permeate to the gas outlet side through the oxygen permeable membrane arranged in the gas channel, different fresh-keeping atmospheres of the at least two fresh-keeping spaces are realized through the arrangement of the first gas channel control system and the second gas channel control system, the diversity of fresh-keeping environments is improved, the use flexibility is improved, and the drawer space in the refrigerator can be fully utilized. And the oxygen separated from one fresh-keeping space is led into the other fresh-keeping space through the air channel, so that fresh-keeping atmosphere with low oxygen and high oxygen is realized, the reutilization of the separated oxygen is realized, and the energy utilization rate is improved.

Description

Refrigerator with a refrigerator body

Technical Field

The embodiment of the application relates to the household appliance technology. And more particularly, to a refrigerator.

Background

Refrigerators are commonly used as home appliances for appropriately extending the shelf life of food materials by adjusting appropriate preservation conditions. The different food materials correspond to different preservation conditions, for example, foods materials such as fruits, water and vegetables can excessively consume nutrient substances due to respiration, so that the food materials are suitable for a low-oxygen preservation environment, for example, the oxygen environment can maintain oxymyoglobin in meat foods to ensure the freshness of the meat, and foods such as red meat and the like are suitable for a high-oxygen preservation environment.

In the related art, a vacuum fresh-keeping drawer is generally configured in a refrigerator to draw out air pressure of an inner space of the drawer, thereby forming a low-pressure storage environment to improve a fresh-keeping effect of food materials.

However, the vacuum fresh-keeping drawer has single fresh-keeping effect and poor flexibility.

Disclosure of utility model

The embodiment of the application provides a refrigerator, which can provide various fresh-keeping environments and improve the flexibility of the fresh-keeping environments of the refrigerator.

In a first aspect, an embodiment of the present application provides a refrigerator, including:

a case;

At least two relatively closed fresh-keeping spaces are arranged in the box body;

the air conditioning component is provided with an air channel, and two ends of the air channel are respectively provided with an air inlet and an air outlet;

a gas driving device is arranged in the gas path and can drive gas to flow from the gas inlet to the gas outlet;

An oxygen permeable membrane is arranged in the air passage and is configured to allow oxygen in air at the air inlet side to permeate to the air outlet side;

The air inlet can be selectively communicated to one of the at least two fresh-keeping spaces or to an external space outside the fresh-keeping space of the refrigerator through a first air path control system;

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

The refrigerator is characterized in that at least two relatively closed fresh-keeping spaces are arranged in the refrigerator body, a gas channel of a gas regulating component is used for providing a channel for gas flow, a gas driving device is used for driving gas to flow from a gas inlet to a gas outlet, an oxygen permeable membrane arranged in the gas channel enables oxygen in air at the gas inlet side to permeate to the gas outlet side, a first gas channel control system is arranged to enable the gas inlet to be selectively communicated with one of the at least two fresh-keeping spaces or an external space outside the fresh-keeping space of the refrigerator, so that oxygen in one fresh-keeping space or the external space enters the other fresh-keeping space through the oxygen permeable membrane, and a second gas channel control system is arranged to enable the gas outlet to be selectively communicated with the other of the at least two fresh-keeping spaces or the external space, so that oxygen separated by the oxygen permeable membrane in one fresh-keeping space enters the other fresh-keeping space or the external space.

Through the arrangement, oxygen is separated by utilizing the oxygen permeable membrane, and at least two different fresh-keeping atmospheres in the fresh-keeping space are realized by utilizing the gas driving device and the two gas path control systems, so that the diversity of the fresh-keeping environment and the flexibility of use are improved, and the drawer space in the refrigerator can be fully utilized. And the oxygen separated from one fresh-keeping space is led into the other fresh-keeping space through the air channel, so that fresh-keeping atmosphere with low oxygen and high oxygen is realized, the reutilization of the separated oxygen is realized, and the energy utilization rate is improved.

The first air path control system is arranged to enable oxygen in an external space outside the fresh-keeping space of the refrigerator to enter the other fresh-keeping space through the oxygen permeable membrane, and the second air path control system is arranged to enable oxygen separated in one fresh-keeping space to be discharged to the external space outside the fresh-keeping space of the refrigerator, so that the oxygen concentration of at least two fresh-keeping spaces has a larger adjusting range.

Furthermore, besides adjusting the oxygen concentration, the fresh-keeping environment of at least two fresh-keeping spaces can be personalized and flexibly set through the temperature, the humidity and the like of the at least two fresh-keeping spaces, so that the fresh-keeping effect is improved.

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

The technical scheme has the advantages that one fresh-keeping space is communicated to the air inlet of the air channel through the first air channel control system, the other fresh-keeping space is communicated to the air outlet of the air channel through the second air channel control system, oxygen in the fresh-keeping space communicated with the air inlet is led into the fresh-keeping space communicated with the air outlet through the oxygen permeable membrane, and meanwhile, the fresh-keeping atmosphere with low oxygen and high oxygen is realized, the reutilization of separated oxygen is realized, and the energy utilization rate is improved.

In some embodiments of the present application, when the air inlet is connected to the external space 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.

The technical scheme has the advantages that the external space is communicated with the air inlet of the air channel through the first air channel system, the other one of the at least two fresh-keeping spaces is communicated with the air outlet of the air channel through the second air channel control system, and oxygen in the external space is led into the other fresh-keeping space through the oxygen permeable membrane, so that the oxygen source in the other fresh-keeping space is more sufficient, and the oxygen concentration adjusting range of the fresh-keeping space is increased.

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

The technical scheme has the advantages that one of the at least two fresh-keeping spaces is communicated with the air inlet of the air channel through the first air channel control system, the outside is communicated with the air outlet of the air channel through the second air channel control system, oxygen in one fresh-keeping space is led out to the outside space through oxygen separated by the oxygen permeable membrane, so that the oxygen discharge space is not limited, and the increase of the oxygen concentration adjustment range of the fresh-keeping space is facilitated.

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

The technical scheme has the advantages that the gas driving device is positioned at the downstream of the oxygen permeable membrane, so that gas firstly passes through the oxygen permeable membrane and then passes through the gas driving device, the gas driving device plays a role in sucking gas and is beneficial to improving the oxygen permeability of the oxygen permeable membrane, and the oxygen permeable membrane can play a role in filtering impurities and plays a role in protecting the gas driving device.

In some embodiments of the application, a fan is arranged in the air path, and the fan is positioned at the upstream of the oxygen permeable membrane along the flow direction of the air in the air path.

The technical scheme has the advantages that the fan is additionally arranged at the upstream of the oxygen permeable membrane, so that the rate of gas entering the oxygen permeable membrane can be increased, and the oxygen permeation efficiency can be improved.

In some embodiments of the application, the first gas circuit control system has:

one of the at least two first inlets is communicated with one of the at least two fresh-keeping spaces, and the other of the at least two first inlets is communicated with the external space;

A first outlet in communication with the air inlet;

Wherein the first gas circuit control system is configured to selectively communicate one of the first inlets with the first outlet.

The first air channel control system has the advantages that the first outlet is communicated with the air inlet of the air channel, at least two first inlets are arranged to be respectively communicated with one of at least two fresh-keeping spaces or an external space, the first air channel control system is used for selectively communicating one of the first inlets with the first outlet, the air inlet of the air channel is selectively communicated with the space, connection of the first air channel control system with each space is facilitated, and control of the first air channel control system is facilitated.

In some embodiments of the application, the second gas circuit control system has:

At least two second outlets, one of the at least two second outlets being communicated with one of the at least two fresh-keeping spaces, the other of the at least two second outlets being communicated with the external space;

The second inlet is communicated with the air outlet;

Wherein the second gas circuit control system is configured to selectively communicate one of the second outlets with the second outlet.

The second air channel control system has the advantages that the second inlet is communicated with the air outlet of the air channel, at least two second outlets are respectively communicated with one of at least two fresh-keeping spaces or an external space, the second air channel control system is used for selectively communicating one of the second outlets and the first inlet, and the air outlet of the air channel is selectively communicated with the space, so that connection of the second air channel control system with each space is facilitated, and control of the second air channel control system is facilitated.

In some embodiments of the present application, at least three relatively closed fresh-keeping spaces are provided in the case;

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

The air inlet of the air channel provided by the embodiment of the application can be selectively communicated with at least two fresh-keeping spaces through the first air channel control system, so that the space volume of separating oxygen sources by the oxygen permeable film can be increased, namely the fresh-keeping volume of the low-oxygen fresh-keeping atmosphere is enlarged.

the air outlet can be selectively communicated to at least two of the at least three fresh-keeping spaces or communicated to the external space through the second air path control system.

The air outlet of the air channel has the following advantages or beneficial effects that the air outlet of the air channel is selectively communicated with at least two fresh-keeping spaces through the second air channel control system, so that oxygen separated by the oxygen permeable film is led into at least one fresh-keeping space, the fresh-keeping volume of the high-oxygen fresh-keeping atmosphere can be enlarged, and the diversity and flexibility of the fresh-keeping atmosphere of the refrigerator can be further improved so as to adapt to different fresh-keeping requirements.

In some embodiments of the application, the cabinet is configured to form a refrigerated compartment that forms an external space outside of the fresh space of the refrigerator.

The technical scheme has the advantages that through the arrangement, oxygen in low-temperature air in the refrigerating compartment can be separated through the oxygen permeable membrane, the oxygen concentration in the fresh-keeping space is increased, meanwhile, the temperature of the oxygen entering the fresh-keeping space is lower, the low-temperature preservation effect of the fresh-keeping space is guaranteed, the oxygen separated out of the fresh-keeping space can be introduced into the refrigerating compartment, the oxygen with lower temperature is recycled, and energy waste caused by discharging the oxygen with reduced temperature out of the refrigerator is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation of the related art, the drawings that are required for the embodiments or the related art description will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic view of a refrigerator according to some examples of the present application;

fig. 2 is a schematic structural view of a refrigerator according to other embodiments of the present application;

FIG. 3 is a schematic diagram of some embodiments of the present application for providing a fresh keeping apparatus;

FIG. 4 is a schematic structural diagram of a fresh-keeping apparatus according to other embodiments of the present application;

FIG. 5 is a schematic diagram illustrating a gas flow direction in a first preservation mode of a preservation apparatus according to some embodiments of the present application;

FIG. 6 is a schematic diagram illustrating a gas flow direction in a second mode of the fresh-keeping apparatus according to some embodiments of the present application;

FIG. 7 is a schematic diagram illustrating a gas flow direction of a third fresh-keeping mode of the fresh-keeping apparatus according to some embodiments of the present application;

FIG. 8 is a schematic structural diagram of a fresh-keeping apparatus according to still other embodiments of the present application;

FIG. 9 is a schematic structural diagram of a fresh-keeping apparatus according to still other embodiments of the present application;

FIG. 10 is a schematic structural diagram of a fresh-keeping apparatus according to still other embodiments of the present application;

FIG. 11 is a schematic structural diagram of a fresh-keeping apparatus according to still other embodiments of the present application;

Fig. 12 is a schematic structural diagram of a fresh-keeping apparatus according to still another embodiment of the present application.

Reference numerals illustrate:

10, a box body; 101, 102, 103, 1031, 104, 20, 30, 40, 50, 60, and 50, respectively, a first fresh-keeping space, a second fresh-keeping space, a refrigerating room, a communication port, a third fresh-keeping space, a door body, 30, 40, a second drawer, 50, a third drawer and a freezing drawer;

100 parts of air conditioning, 110 parts of air path, 111 parts of first subsection, 112 parts of second subsection and 113 parts of third subsection;

120 of an oxygen permeable membrane, 130 of a gas driving device and 140 of a fan;

200 parts of a first air path control system, 210 parts of a first flow dividing valve, 211 parts of a first inlet, 212 parts of a first outlet, 220 parts of a first pipe body, 221 parts of a first air outlet branch pipe, 222 parts of a first air inlet branch pipe, 223 parts of a second air inlet branch pipe, 230 parts of a first switch valve and 240 parts of a second switch valve;

300 parts of a second gas path control system, 310 parts of a second flow dividing valve, 311 parts of a second inlet, 312 parts of a second outlet, 320 parts of a second pipe body, 321 parts of a third air inlet branch pipe, 322 parts of a second air outlet branch pipe, 323 parts of a third air outlet branch pipe, 330 parts of a third switch valve and 340 parts of a fourth switch valve;

410, 420, 430, 440, fifth, 450, sixth and 460, seventh air pipes;

510 a third valve structure, 520 a fourth valve structure.

Detailed Description

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The controlled atmosphere fresh-keeping technology is a technology for inhibiting the respiration of food cells and delaying the metabolism process of the food cells by artificially controlling the proportion of gas components, humidity, temperature and air pressure, so that the color, taste, nutrition and the like of the food are kept unchanged for a long time. The technology is not only suitable for fruits and vegetables, but also suitable for the preservation of various foods. The most common of modified atmosphere preservation is to reduce the oxygen content or concentration and increase the carbon dioxide content or concentration.

However, some food materials are suitable for low oxygen storage environments, such as most fruits and vegetables, dry goods, etc., due to the nature of the food material storage environment. The low-oxygen storage environment can inhibit the respiration of food materials and reduce the growth of aerobic microorganisms. Some food materials are suitable for high-oxygen storage environments, such as mushrooms, fresh-cut fruits and vegetables, fresh pork, fresh and alive aquatic products, and the like. The high oxygen storage environment can inhibit enzymatic browning and reduce anaerobic fermentation.

Therefore, the storage environment is suitable for low oxygen concentration, for example, oxygen concentration <21%, and for high oxygen concentration, for example, oxygen concentration >21%.

Therefore, from the viewpoint of food sorting and storage, different storage environments are required to be formed in different areas of the refrigerator refrigerating chamber or different drawers, so as to store different types of food.

In related refrigerator products, a vacuum preservation technology or MSA (Modified Storage Atmosphere) oxygen control preservation technology is generally adopted in the refrigerator.

The vacuum preservation is mainly to pump out a part of air in the storage container through a vacuum pump so as to reduce the air pressure in the storage container, so that a low-pressure storage environment is formed in the storage container, for example, the pressure is less than 101kPa.

The MSA oxygen control fresh-keeping technology mainly utilizes the separation of nitrogen and oxygen to reduce the oxygen content in the fresh storage space so as to achieve the purpose of slowing down the oxidation of food materials. The air in the storage container passes through the nitrogen-oxygen separation membrane under the action of a certain pressure, and the permeation rate of the oxygen is larger than that of the nitrogen due to the different permeation rates of the oxygen and the nitrogen through the nitrogen-oxygen separation membrane. Air having a higher concentration of oxygen than air can be obtained on the other side of the nitrogen-oxygen separation membrane. In this way hypoxia of the air in the storage container can be achieved.

On the one hand, the vacuum preservation technology or the MSA oxygen control preservation technology is applied to one drawer of the refrigerator. However, the refrigerator is generally provided with two drawers, even three drawers, and the fresh-keeping space of the refrigerator space is not utilized enough. On the other hand, the extracted or filtered air is directly discharged to the outside of the storage container, and is not reused, and in particular, the separated oxygen is not reused and is wasted. In addition, the fresh-keeping environment of the refrigerator is single, matching with the increasingly improved fresh-keeping requirement of users, and affecting the user experience.

In view of this, the present application has developed a refrigerator, which can form a low-oxygen fresh-keeping environment and a high-oxygen fresh-keeping environment, a high-oxygen fresh-keeping environment and a normal fresh-keeping environment, and a low-oxygen fresh-keeping environment and a normal fresh-keeping environment simultaneously by controlling an air pump and a valve structure, thereby fully utilizing the space of the refrigerator to form different fresh-keeping environments, forming various fresh-keeping environments, and improving the flexibility of users to utilize different fresh-keeping environments.

And through the control of the air pump and the valve structure, the oxygen separated from one storage container can be led into the other storage container, and meanwhile, a low-oxygen fresh-keeping environment and a high-oxygen fresh-keeping environment are formed, so that the fresh-keeping structure of the refrigerator is simplified, and the oxygen utilization rate is improved.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1, a refrigerator according to an embodiment of the present application includes a refrigerator body 10. The case 10 may have a storage compartment for storing food and the like.

The case 10 may include a cabinet and a case, wherein the cabinet is constructed to form a storage compartment, and the case may be coupled to an outer side of the cabinet to form an external appearance of the refrigerator. The case 10 may further include an insulation layer disposed between the case liner and the case shell, to perform an insulation function on the storage compartment, so as to minimize heat exchange between the storage compartment and the outside of the refrigerator, and further ensure a refrigerating effect of the refrigerator.

The number of the storage compartments may be plural, and as shown in fig. 1, two storage compartments are provided. The two storage compartments may be a refrigerating compartment 103 and a freezing compartment, respectively, according to the difference in temperature. The refrigerating compartment 103 and the freezing compartment may be arranged side by side in the height direction, e.g. the refrigerating compartment 103 is located above the freezing compartment, and the refrigerating compartment and the freezing compartment may be arranged side by side in the horizontal direction, e.g. the refrigerating compartment on the left and the refrigerating compartment on the right.

With continued reference to fig. 1, the refrigerator according to the embodiment of the present application further includes a door 20, and the door 20 may be connected to the cabinet 10 to open or close the storage compartment.

In some embodiments, the door 20 is rotatably coupled to the case 10 such that the door 20 rotates with respect to the case 10 to open and close the storage compartment.

The number of the door bodies 20 may be plural, for example, one door body 20 is provided for each storage compartment. For another example, two door bodies 20 are provided for each storage compartment.

The storage room is provided with various structures to provide placing positions for food materials and other articles. Illustratively, a shelf is provided in the refrigerated compartment, and a drawer or the like is provided in the freezer compartment. The case 10 is configured to form a chamber in which a drawer is drawably provided to form a relatively airtight fresh-keeping space.

In some embodiments, at least two relatively enclosed fresh-keeping spaces, such as a first fresh-keeping space, a second fresh-keeping space, and a third fresh-keeping space, are provided within the case 10.

As shown in fig. 1, the case 10 is configured to form a first chamber, a front side of which, that is, a side of which is open toward the door 20. The refrigerator further comprises a first drawer 30, wherein the first drawer 30 is arranged in the first cavity in a drawable manner. The first drawer 30 can be drawn in the depth direction of the refrigerator.

When the first drawer 30 is pushed into the first chamber, the first drawer 30 and the wall of the first chamber enclose together to form a first fresh-keeping space. The first fresh-keeping space includes a storage space within the first drawer 30, and a space between the first drawer 30 and a wall of the first chamber. Of course, food and other items are stored in the first drawer 30.

The front end plate of the first drawer 30, i.e., the end plate of the first drawer 30 facing the door body 20, closes the first chamber such that the first fresh food compartment forms a storage space that can be independent of the fresh food compartment 103. Illustratively, a seal is provided between the front end plate of the first drawer 30 and the front end surface of the first chamber to improve the sealing performance of the first fresh-keeping space.

With continued reference to fig. 1, the case 10 is configured to form a second chamber, the front side of which, i.e., the second chamber is open toward one side of the door 20. The refrigerator further comprises a second drawer 40, and the second drawer 40 is arranged in the second cavity in a drawable manner. The second drawer 40 can be drawn in the depth direction of the refrigerator.

When the second drawer 40 is pushed into the second chamber, the second drawer 40 and the wall of the second chamber enclose together to form a second fresh-keeping space. The second fresh-keeping space includes a storage space within the second drawer 40, and a space between the second drawer 40 and a wall of the second chamber. Of course, food and other items are stored in the second drawer 40.

The front end plate of the second drawer 40, i.e., the end plate of the second drawer 40 facing the door body 20, closes the second chamber such that the second fresh food compartment forms a storage space that can be independent of the refrigerator compartment 103. Illustratively, a seal is provided between the front end plate of the second drawer 40 and the front end surface of the second chamber to improve the sealing performance of the second fresh-keeping space.

The first drawer 30 and the second drawer 40 described above may be both 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.

Of course, at least one of the first drawer 30 and the second drawer 40 may also be located outside the refrigerating compartment 103, in which case the front end panel of the drawer also functions as a door.

The above is merely a schematic illustration of the number of fresh-keeping spaces, and is not a limitation of the number of fresh-keeping spaces provided in the case 10. For example, in some embodiments, the cabinet 10 is further configured to form a third chamber, which may be located below the refrigerated compartment. The third chamber may be a temperature change chamber. The front side of the third chamber, i.e. the side of the third chamber facing away from the refrigerator back plate, is open. The refrigerator further comprises a third drawer 50, the third drawer 50 is arranged in the third cavity in a drawable mode, and the third drawer 50 can be pulled along the depth direction of the refrigerator.

When the third drawer 50 is pushed into the third chamber, the third drawer 50 and the wall of the third chamber enclose together to form 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 a storage space within the third drawer 50, and a space between the third drawer 50 and a cavity wall of the third chamber. Of course, food and other items are stored in third drawer 50.

As shown in fig. 2, in some embodiments, a freezer drawer 60 may be disposed within the refrigerated compartment, and the freezer drawer 60 may be pulled in a depth direction of the refrigerator to enable access to and release of the items.

Referring to fig. 3, the refrigerator of the embodiment of the present application further includes an air conditioning part 100, and the air conditioning part 100 is configured to adjust the oxygen concentration in the fresh-keeping space, thereby adjusting the fresh-keeping environment.

In some embodiments, the air conditioning component 100 is mounted within the case to reduce the impact of the air conditioning component 100 on the storage space. Illustratively, the air conditioning component 100 is located in the space between the case and the liner, and the air conditioning component 100 is communicated with the fresh-keeping space by providing an opening in the wall of the chamber.

With continued reference to fig. 3, the air regulating member 100 has an air passage 110, the air passage 110 providing a passage for the flow of air. The air inlet and the air outlet are respectively arranged at two ends of the air path 110.

Illustratively, the air conditioning component 100 may include a first air duct configured to form the air path 110, so configured that the air path 110 is simple in structure and flexible in arrangement position.

Illustratively, the air conditioning component 100 may include a housing with an air path 110 formed by the housing configuration, such that the air conditioning component 100 is formed into a modular structure for ease of assembly.

In some embodiments, an oxygen permeable membrane 120 is disposed within the gas circuit 110, the oxygen permeable membrane 120 being configured to allow oxygen in the air at the air inlet side to permeate to the air outlet side, such that a low oxygen atmosphere is formed at the air inlet side and a high oxygen atmosphere is formed at the air outlet side.

The oxygen permeable membrane 120 has opposite air inlet and air outlet sides, and the oxygen permeable membrane 120 is configured to allow oxygen in the air at 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 channel 110, and the air outlet side of the oxygen permeable membrane 120 faces the air outlet end of the air channel 110.

In some embodiments, a gas drive 130 may be disposed within the gas circuit 110, the gas drive 130 being capable of driving gas from the gas inlet to the gas outlet.

The gas driving device 130 may include a gas pump, which may generate a higher gas pressure, facilitating an increase in the gas flow rate.

The air driving device 130 may include a fan, which has low energy consumption and low noise, and is beneficial to reducing noise generated by the operation of the refrigerator.

In some embodiments, oxygen permeable membrane 120 is positioned downstream of gas drive 130 along the flow direction of the gas in gas circuit 110, and gas drive 130 is positioned between the gas inlet side of oxygen permeable membrane 120 and the gas inlet of gas circuit 110. After the gas is pressurized and accelerated by the gas driving device 130, the gas enters the oxygen permeable membrane 120 through the oxygen permeable membrane 120, so that the pressure and the speed of the gas entering the oxygen permeable membrane 120 can be increased, and the working efficiency of the oxygen permeable membrane 120 can be improved.

In other embodiments, the gas driving device 130 is located downstream of the oxygen permeable membrane 120 along the flow direction of the gas in the gas path 110, and the gas driving device 130 is located between the gas outlet side of the oxygen permeable membrane 120 and the gas outlet of the gas path 110. The gas driving device 130 plays a role of sucking gas, and is beneficial to improving the separation efficiency of the oxygen permeable membrane 120. The oxygen permeable membrane 120 may filter out a portion of the impurities and act as a protection gas driving device 130, and the oxygen permeable membrane 120 may provide a relatively stable gas flow rate, thereby allowing the gas driving device 130 to be in a relatively stable operating condition.

With continued reference to fig. 3, the gas circuit 110 includes a first sub-section 111, a second sub-section 112, and a third sub-section 113, wherein 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.

Thus, oxygen in the first subsection 111 permeates through the oxygen permeable membrane 120 and enters the second subsection 112 and enters the third subsection 113 under the action of the gas driving device 130.

When the gas driving device 130 is located on the gas outlet side of the oxygen permeable membrane 120, the oxygen permeable membrane 120 has resistance to the flow of gas. To increase the rate of gas entering oxygen permeable membrane 120, in some embodiments, in conjunction with fig. 4, air conditioning component 100 further includes a blower 140, blower 140 being disposed on air path 110. The blower 140 is located upstream of the oxygen permeable membrane 120 along the flow direction of the gas in the gas path 110. As such, the blower 140 is located on the first subsection 111.

By adding the blower 140 on the air inlet side of the oxygen permeable membrane 120, the rate of gas entering the oxygen permeable membrane 120 is increased, thereby facilitating an increase in oxygen separation efficiency.

With continued reference to fig. 3, the refrigerator according to the embodiment of the present application further includes a first air path control system 200, and the first air path control system 200 is configured to control a communication state of the air inlets of the air paths 110.

The first air path control system 200 may be installed in the cabinet to reduce the influence of the first air path control system 200 on the storage space.

The first air path control system 200 is connected to the air inlet of the air path 110, specifically, the first air path control system 200 is connected to the first subsection 111. The air inlet of the air path 110 may be selectively connected to one of the at least two fresh-keeping spaces or to an external space outside the fresh-keeping space of the refrigerator through the first air path control system 200.

The external space outside the fresh-keeping space of the refrigerator may be a space outside the refrigerator, and the external space outside the fresh-keeping space of the refrigerator may be a space inside the refrigerator other than the fresh-keeping space, such as the refrigerating compartment 103, the air duct, and the like. 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.

For example, the air inlet of the air path 110 may be selectively communicated with the first fresh-keeping space 101 or the external space through the first air path control system 200. When the air inlet is communicated with the first fresh-keeping space 101 through the first air passage control system, the first fresh-keeping space 101 is communicated with the air passage 110 through the first air passage control system 200, and when the air inlet is communicated with the external space outside the fresh-keeping space of the refrigerator through the first air passage control system 200, the external space outside the fresh-keeping space of the refrigerator is communicated with the air passage 110 through the first air passage control system 200.

With continued reference to fig. 3, the refrigerator according to the embodiment of the present application further includes a second air path control system 300, and the second air path control system 300 is configured to control a communication state of the air outlets of the air paths 110.

The second air path control system 300 may be installed in the case, reducing the influence of the second air path control system 300 on the storage space.

The second air path control system 300 is connected to the air outlet of the air path 110, and specifically, the second air path control system 300 is connected to the third subsection 113. And the air outlet of the air channel 110 can be selectively communicated to at least two fresh-keeping control units or to the external space outside the fresh-keeping space of the refrigerator through the second air channel control system 300.

Illustratively, the air outlet of the air path 110 may be selectively communicated with the second fresh-keeping space 102 or the external space through the second air path control system 300. When the air outlet of the air channel 110 is communicated with the second fresh-keeping space 102 through the second air channel control system 300, the second fresh-keeping space 102 is communicated with the air channel 110 through the second air channel control system 300, and when the air outlet of the air channel 110 is communicated with the external space outside the fresh-keeping space of the refrigerator through the second air channel control system 300, the external space outside the fresh-keeping space of the refrigerator is communicated with the air channel 110 through the second air channel control system 300.

In this way, the air conditioning component 100, the first air path control system 200, the second air path control system 300, the structure forming the first fresh-keeping space 101 and the structure forming the second fresh-keeping space 102 form the fresh-keeping device of the refrigerator, so as to improve the fresh-keeping effect of the food.

The refrigerator provided by the embodiment of the application can have multiple fresh-keeping modes.

In some embodiments, the air inlet is connected to one of the at least two fresh food spaces by the first air circuit control system 200 and the air outlet is connected to the other of the at least two fresh food spaces by the second air circuit control system 300. In this way, one of the at least two fresh-keeping spaces is a low-oxygen fresh-keeping atmosphere, and the other of the at least two fresh-keeping spaces is a high-oxygen fresh-keeping atmosphere. The fresh-keeping mode of the refrigerator at this time may be defined as a first fresh-keeping mode.

In some embodiments, when the air inlet is communicated to the external space through the first air path control system 200, the air outlet is communicated to another of the at least two fresh-keeping spaces through the second air path control system 300. In this way, one of the at least two fresh-keeping spaces is a conventional refrigerated fresh-keeping atmosphere, and the other of the at least two fresh-keeping spaces is a high-oxygen fresh-keeping atmosphere. At this time, the fresh-keeping mode of the refrigerator may be defined as a second fresh-keeping mode.

In some embodiments, the air inlet is connected to one of the at least two fresh-keeping spaces through the first air path control system 200, and the air outlet is connected to the external space through the second air path control system 300. In this way, one of the at least two fresh-keeping spaces is a low-oxygen fresh-keeping atmosphere, and the other of the at least two fresh-keeping spaces is a conventional refrigerated fresh-keeping atmosphere. At this time, the fresh-keeping mode of the refrigerator may be defined as a third fresh-keeping mode.

Wherein, the oxygen concentration of the high-oxygen fresh-keeping atmosphere is higher than that of the conventional refrigeration fresh-keeping atmosphere, and the oxygen concentration of the conventional refrigeration fresh-keeping atmosphere is higher than that of the low-oxygen fresh-keeping atmosphere.

Illustratively, the oxygen concentration of the low oxygen fresh-keeping atmosphere is lower than the oxygen concentration in the atmospheric environment in which the refrigerator is located, for example, the oxygen concentration is within 5% -21%. The oxygen concentration of the high oxygen fresh-keeping atmosphere is higher than that of the atmosphere environment of the refrigerator, for example, the oxygen concentration is in the range of 21% -35%. The oxygen concentration of the conventional refrigeration and preservation atmosphere is equal to that of the atmosphere environment in which the refrigerator is positioned.

The first fresh-keeping space 101 and the second fresh-keeping space 102 are provided in the case as an example.

Referring to fig. 5, when the refrigerator is in the first fresh-keeping mode, the first air path control system 200 is configured to communicate the first fresh-keeping space 101 with the air inlet of the air path 110, the second air path control system 300 is configured to communicate the second fresh-keeping space 102 with the air outlet of the air path 110, and the air driving device 130 is configured to drive the oxygen of the first fresh-keeping space 101 to pass through the oxygen permeable membrane 120 and to be introduced into the second fresh-keeping space 102 through the air path 110, so that the oxygen concentration of the first fresh-keeping space 101 is lower than the oxygen concentration in the atmosphere, and the oxygen concentration of the second fresh-keeping space 102 is higher than the oxygen concentration in the atmosphere. Thus, the first fresh-keeping space 101 forms a low-oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere.

Referring to fig. 6, when the refrigerator is in the second fresh-keeping mode, the first air path control system 200 is configured to communicate an external space outside the fresh-keeping space of the refrigerator with the air inlet of the air path 110 so that the oxygen concentration of the first fresh-keeping space 101 is equal to the oxygen concentration in the atmospheric environment, the second air path control system 300 is configured to communicate the second fresh-keeping space 102 with the air outlet of the air path 110, and the air driving device 130 is configured to drive the oxygen of the external space to pass through the oxygen permeable membrane 120 and to be introduced into the second fresh-keeping space 102 through the air path 110 so that the oxygen concentration of the second fresh-keeping space 102 is higher than the oxygen concentration in the atmospheric environment. Thus, the first fresh-keeping space 101 forms a normal refrigerated fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere.

Referring to fig. 7, when the refrigerator is in the third fresh-keeping mode, the first air path control system 200 is configured to communicate the first fresh-keeping space 101 with the air inlet of the air path 110, the second air path control system 300 is configured to communicate the air outlet of the air path 110 with the external space, and the air driving device 130 is configured to drive the oxygen in the first fresh-keeping space 101 to pass through the oxygen permeable membrane 120 and to be led out to the external space outside the fresh-keeping space of the refrigerator through the air path 110, so that the oxygen concentration in the first fresh-keeping space 101 is lower than the oxygen concentration in the atmosphere, and the oxygen concentration in the second fresh-keeping space 102 is equal to the oxygen concentration in the atmosphere. Thus, the first fresh-keeping space 101 forms a low-oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a conventional refrigerated fresh-keeping atmosphere.

The dashed arrows in fig. 5 to 7 represent the flow direction of the gas.

Here, when the first fresh-keeping space 101 is in a low oxygen atmosphere, the pressure in the first fresh-keeping space 101 may be a low pressure environment, that is, the pressure in the first fresh-keeping space 101 may be lower than the atmospheric pressure of the atmospheric environment.

An opening and closing mechanism may be disposed between the first drawer 30 and the cavity wall of the first chamber, and the opening and closing mechanism is configured to intake air toward the inside of the first fresh-keeping space 101 when the first drawer 30 is pulled out, improving the convenience of the drawing of the first drawer 30.

When the second fresh-keeping space 102 is in a high oxygen atmosphere, the inside of the second fresh-keeping space 102 may be in a high pressure environment, that is, the pressure inside the second fresh-keeping space 102 may be lower than the atmospheric pressure of the atmospheric environment.

A locking mechanism may be provided between the second drawer 40 and the wall of the second chamber to allow the second drawer 40 to be stably located in the second chamber, reducing the likelihood that the second drawer 40 will eject from the second chamber under high pressure.

Through the arrangement, the refrigerator of the embodiment of the application utilizes the oxygen permeable membrane 120 to separate oxygen, utilizes the gas driving device 130 and the two gas paths and control system to realize different fresh-keeping atmospheres of two fresh-keeping spaces, improves the diversity of fresh-keeping environments and the flexibility of use, and can also fully utilize the drawer space in the refrigerator. And when the oxygen separated from one fresh-keeping space is led into the other fresh-keeping space, the fresh-keeping atmosphere of low oxygen and high oxygen is realized at the same time, the multiplexing of the separated oxygen is realized, and the energy utilization rate is improved.

Moreover, through the arrangement of the first air path control system 200, oxygen in an external space outside the fresh-keeping space of the refrigerator can enter the fresh-keeping space through the oxygen permeable membrane 120, and through the arrangement of the second air path control system 300, the oxygen separated in the fresh-keeping space can be discharged to the external space outside the fresh-keeping space of the refrigerator, so that the oxygen concentration in the fresh-keeping space has a larger adjustment space.

In some embodiments, the refrigerator compartment 103 forms an external space outside the fresh space of the refrigerator described above. Thus, the air inlet of the air channel 110 can be selectively communicated to one of the at least two fresh food spaces or to the refrigerating compartment 103 through the first air channel control system 200, and the air outlet of the air channel 110 can be selectively communicated to the other of the at least two fresh food spaces or to the refrigerating compartment 103 through the second air channel control system 300.

Referring to fig. 8, the air conditioning unit 100 may further include a second air duct 410, a first end of the second air duct 410 being in communication with the refrigerating compartment 103, and a second end of the second air duct 410 being connected to the first air duct control system 200.

In some embodiments, a communication port 1031 is provided on the rear wall of the refrigerated compartment 103, the communication port 1031 communicating with the first end of the second air duct 410. The connection manner of the second air pipe 410 and the rear wall of the refrigerating compartment 103 includes, but is not limited to, clamping connection, threaded connection, etc., so as to realize the communication between the communication port 1031 and the second air pipe 410.

When the refrigerator is in the second fresh-keeping mode, the first air path control system 200 is configured to communicate the second air pipe 410 with the air inlet of the air path 110 so that the first fresh food compartment 101 communicates with the fresh food compartment 103.

It can be understood that when the refrigerator is in the second fresh-keeping mode, the oxygen in the refrigerating compartment 103 permeates the oxygen permeable membrane 120 through the second air pipe 410, the first air path control system 200 and the air path 110, so that the temperature of the oxygen entering the second fresh-keeping space 102 can be kept low, and the influence of the temperature of the oxygen entering the second fresh-keeping space 102 on the fresh-keeping temperature can be reduced.

In some embodiments, with continued reference to FIG. 8, the air conditioning assembly 100 may further include a third air duct 420, a first end of the third air duct 420 being in communication with the refrigerated compartment 103, and a second end of the third air duct 420 being connected to the second air path control system 300.

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

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

It can be understood that when the refrigerator is in the third fresh-keeping mode, the air in the first fresh-keeping space 101 is separated by the oxygen permeable membrane 120, and the oxygen is discharged to the cold storage room 103 through the air channel 110, the second air channel control system 300 and the third air channel 420, so that the oxygen with lower temperature is recycled, and the energy waste caused by discharging the oxygen with lower temperature outside the refrigerator is avoided.

With continued reference to FIG. 3, in some embodiments, the first gas circuit control system 200 may have at least two first inlets 211, one of the at least two first inlets 211 communicating with one of the at least two fresh-keeping spaces and another of the at least two first inlets 211 communicating with the ambient space.

The first gas circuit control system 200 may have a first outlet 212, the first outlet 212 being in communication with the gas inlet of the gas circuit 110.

The first gas circuit control system 200 is configured to selectively communicate one of the first inlets 211 with the first outlet 212.

The first air path control system 200 is configured to communicate one of the first inlet 211 and the first outlet 212 to communicate the first fresh food compartment 101 with the air inlet of the air path 110 when the refrigerator is in the first fresh food mode and the third fresh food mode.

Thus, when the refrigerator is in the first fresh-keeping mode and the third fresh-keeping mode, the first fresh-keeping space 101 is communicated with the air inlet of the air channel 110, so that air in the first fresh-keeping space 101 can reach the oxygen permeable membrane 120 through the air channel 110, and oxygen can permeate the oxygen permeable membrane 120.

When the refrigerator is in the second fresh-keeping mode, the first air path control system 200 is configured to communicate with the other first inlet 211 and the first outlet 212 so that the external space communicates with the air inlet of the air path 110.

Referring to fig. 8, when the refrigerator is in the second fresh-keeping mode, the first air duct control system 200 is configured to communicate with the air inlets of the refrigerating compartment 103 and the air duct 110 such that air of the refrigerating compartment 103 can reach the oxygen permeable membrane 120 through the air duct 110 and oxygen can permeate the oxygen permeable membrane 120.

In this embodiment, the three ports of the first air path control system 200 are used to selectively realize the communication between the first fresh-keeping space 101 and the air inlet of the air path 110, or the communication between the external space and the air inlet of the air path 110, so that the oxygen in the second fresh-keeping space 102 is selectively sourced from the first fresh-keeping space 101 or the external space outside the fresh-keeping space of the refrigerator, so that the oxygen concentration in the second fresh-keeping space 102 can be improved by using the oxygen in the first fresh-keeping space 101, the adjusting range of the oxygen concentration in the second fresh-keeping space 102 can be enlarged by using the oxygen in the external space outside the fresh-keeping space of the refrigerator, and the first fresh-keeping space 101 can be used as a conventional storage space, so that the storage environment of the refrigerator is enriched, and the storage environment of the refrigerator is adapted to the needs of various storage environments of users.

In some embodiments, the first gas circuit control system 200 includes a first diverter valve 210, where the first diverter valve 210 may be a solenoid three-way valve, and the adjustment of the communication state of the three ports is achieved by adjusting the valve element.

The arrangement of the single first diverter valve 210 has the advantages of simple pipeline design, small installation occupation space and low cost. And the pipeline connection point can be reduced, and the air leakage risk is reduced.

In some embodiments, referring to FIG. 9, the first gas circuit control system 200 may include a first tube 220. The first pipe 220 is respectively communicated with the air inlet of the air channel 110 and the first fresh-keeping space 101, and the first pipe 220 is also used for communicating with the external space outside the fresh-keeping space of the refrigerator. The first pipe 220 may be provided with two switch valves, and the air inlet of the air path 110 may be selectively communicated with the first fresh-keeping space 101 or an external space outside the fresh-keeping space of the refrigerator through the switch adjustment of the two switch valves.

The first pipe 220 may include a first outlet branch pipe 221, and a first end of the first outlet branch pipe 221 communicates with an inlet of the gas path 110. The connection manner of the first outlet branch pipe 221 and the air path 110 includes, but is not limited to, threaded connection, flange connection, clamping connection, etc. The first outlet manifold 221 is configured to form a first outlet 212 of the first gas circuit control system 200.

The first pipe body 220 may include a first air inlet branch pipe 222, a first end of the first air inlet branch pipe 222 communicating with the first fresh air keeping space 101, and a second end of the first air inlet branch pipe 222 communicating with a second end of the first air outlet branch pipe 221.

The first pipe body 220 may include a second air inlet branch pipe 223, a first end of the second air inlet branch pipe 223 being communicated with a second end of the first air outlet branch pipe 221, the second end of the second air inlet branch pipe 223 being for communication with an external space outside the fresh-keeping space of the refrigerator. Illustratively, the second end of the second air inlet branch pipe 223 communicates with the second air pipe 410, and the refrigerating compartment 103 is an external space outside the fresh space of the refrigerator.

The first and second intake branches 222 and 223 are configured to form two first inlets 211 of the first air path control system 200.

The first gas path control system 200 may include a first switching valve 230, the first switching valve 230 being installed to the first gas inlet branch pipe 222. The first intake branch pipe 222 is configured to be turned on when the first switching valve 230 is configured to be turned on, and the first intake branch pipe 222 is configured to be turned off when the first switching valve 230 is configured to be turned off.

The first air path control system 200 may include a second switching valve 240, the second switching valve 240 being installed to the second air intake branch 223. The second air intake branch pipe 223 is configured to be turned on when the second switching valve 240 is configured to be turned on, and the second air intake branch pipe 223 is configured to be turned off when the second switching valve 240 is configured to be turned off.

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 with the first air outlet branch pipe 221 through the first air inlet branch pipe 222. 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 air inlet branch pipe 222, the second air outlet branch pipe 322 and the air path 110, and the oxygen in the air passes through the oxygen permeable membrane 120, so that the oxygen concentration in the first fresh keeping space 101 is reduced, and the first fresh keeping space 101 forms a low-oxygen fresh keeping atmosphere.

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 opened, so that the air inlet of the air path 110 is communicated with the external space outside the fresh-keeping space of the refrigerator through the second air inlet branch pipe 223 and the first air outlet branch pipe 221. Thus, when the refrigerator is in the second fresh-keeping mode, air in the external space outside the fresh-keeping space of the refrigerator reaches the oxygen permeable membrane 120 through the second air inlet pipe and the first air outlet branch pipe 221, and oxygen in the air passes through the oxygen permeable membrane 120, so that the oxygen concentration of the first fresh-keeping space 101 is reduced, and the first fresh-keeping space 101 forms a low-oxygen fresh-keeping atmosphere.

Through the above arrangement, through the opening and closing control of the two switch valves, the air inlet of the air channel 110 is selectively communicated with the first fresh-keeping space 101 or the external space outside the fresh-keeping space of the refrigerator, and compared with the single first flow dividing valve 210, the flow control and the function switching are more flexible due to the arrangement of the two switch valves, the two switch valves are independently controlled, and the flexibility and the reliability of the first air channel control system 200 are improved.

With continued reference to FIG. 3, in some embodiments, the second gas circuit control system 300 may have a second inlet 311, the second inlet 311 being in communication with the outlet port of the gas circuit 110.

The second air path control system 300 may have at least two second outlets 312, one of the at least two second outlets 312 being communicated to one of the at least two fresh-keeping spaces, and the other of the at least two second outlets 312 being communicated with an external space outside the fresh-keeping space of the refrigerator.

The second gas circuit control system 300 is configured to selectively communicate one of the second outlets 312 with the second inlet 311.

The second air path control system 300 is configured to communicate the second inlet 311 with one of the first outlets 212 such that the second fresh food space 102 communicates with the air outlet of the air path 110 when the refrigerator is in the first fresh food mode and the second fresh food mode.

Thus, when the refrigerator is in the first fresh-keeping mode and the second fresh-keeping mode, the second fresh-keeping space 102 is communicated with the air outlet of the air channel 110, so that oxygen penetrating through the oxygen permeable membrane 120 enters the second fresh-keeping space 102 through the air channel 110, and a storage environment with high oxygen concentration is formed in the second fresh-keeping space 102.

When the refrigerator is in the third fresh-keeping mode, the second air path control system 300 is configured to communicate 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 path 110.

Referring to fig. 8, when the refrigerator is in the third fresh-keeping mode, the second air path control system 300 is configured to communicate with the air outlets of the refrigeration compartment 103 and the air path 110, so that the oxygen separated from the first fresh-keeping space 101 can be discharged to the refrigeration compartment 103 through the air path 110 and the third air pipe 420, and the oxygen with a lower temperature is recycled while the low oxygen concentration preservation environment of the first fresh-keeping space 101 is realized, so as to ensure the lower refrigeration temperature of the refrigeration compartment 103.

In this embodiment, the communication between the second fresh-keeping space 102 and the air outlet of the air channel 110 is selectively achieved by using three ports of the second air channel control system 300, or the communication between the external space outside the fresh-keeping space of the refrigerator and the air outlet of the second air channel 410, 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, the oxygen concentration in the second fresh-keeping space 102 can be increased by using the oxygen in the first fresh-keeping space 101, and the oxygen in the first fresh-keeping space 101 can be discharged to the external space outside the fresh-keeping space of the refrigerator, so that the second fresh-keeping space 102 is used as a conventional storage space, the storage environment of the refrigerator is enriched, and the storage environment of the refrigerator is adapted to the needs of various storage environments of users.

In some embodiments, the second gas circuit control system 300 includes a second diverter valve 310, where the second diverter valve 310 may be a solenoid three-way valve, and the adjustment of the communication state of the three ports is implemented by adjusting the valve element.

The arrangement of the single second shunt valve 310 has the advantages of simple pipeline design, small installation occupation space and low cost. And the pipeline connection point can be reduced, and the air leakage risk is reduced.

With continued reference to fig. 9, in some embodiments, the second gas circuit control system 300 may include a second tube 320. The second pipe 320 is respectively communicated with the air outlet of the air circuit 110 and the second fresh-keeping space 102, and the second pipe 320 is also used for communicating with the external space outside the fresh-keeping space of the refrigerator. The second pipe 320 may be provided with two switch valves, and the air outlet of the air channel 110 is selectively communicated with the second fresh-keeping space 102 or an external space outside the fresh-keeping space of the refrigerator through the switch adjustment of the two switch valves.

The second pipe body 320 may include a third air inlet branch pipe 321, and a first end of the third air inlet branch pipe 321 communicates with an air outlet of the air path 110. The third intake manifold 321 is configured to form the second inlet 311 of the second air path control system 300.

The second pipe body 320 may include a second outlet branch pipe 322, a first end of the second outlet branch pipe 322 being communicated with a second end of the third inlet branch pipe 321, and a second end of the second outlet branch pipe 322 being communicated with the second fresh-keeping space 102.

The second pipe body 320 may include a third outlet branch pipe 323, a first end of the third outlet branch pipe 323 being communicated with a second end of the third inlet branch pipe 321, the second end of the third outlet branch pipe 323 being adapted to communicate with an external space outside the fresh-keeping space of the refrigerator. Illustratively, the second end of the third outlet manifold 323 is in communication with the third air duct 420, and the refrigerating compartment 103 is an external space outside the fresh space of the refrigerator.

The second outlet manifold 322 and the third outlet manifold 323 are configured to form the two second outlets 312 of the second gas circuit control system 300.

The second gas circuit control system 300 may include a third on-off valve 330, the third on-off valve 330 being mounted to the second outlet manifold 322. The second outlet branch pipe 322 is turned on when the third switching valve 330 is configured to be opened, and the second outlet branch pipe 322 is configured to be turned off when the third switching valve 330 is configured to be closed.

The second gas circuit control system 300 may include a fourth switching valve 340, the fourth switching valve 340 being mounted to the third outlet manifold 323, the third outlet manifold 323 being turned on when the fourth switching valve 340 is configured to be opened, and the third outlet manifold 323 being configured to be turned off when the fourth switching valve 340 is configured to be closed.

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 opened, 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, 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, so that the oxygen concentration of the second fresh keeping space 102 is increased, and the second fresh keeping space 102 forms a high-oxygen fresh keeping atmosphere.

When the refrigerator is in the third fresh-keeping mode, the third switch valve 330 is configured to be closed, and the fourth switch valve 340 is configured to be opened, so that the air outlet of the air path 110 is communicated with the external space outside the fresh-keeping space of the refrigerator through the third air inlet branch pipe 321 and the third air 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 air inlet branch pipe 321 and the third air outlet branch pipe 323, and the oxygen concentration of the first fresh keeping space 101 is reduced, and the second fresh keeping space 102 forms a conventional storage environment.

Through the above arrangement, through the opening and closing control of the two switch valves, the air outlet of the air channel 110 is selectively communicated with the second fresh-keeping space 102 or the external space outside the fresh-keeping space of the refrigerator, and compared with the single first flow dividing valve 210, the arrangement of the two switch valves enables the flow control and the function switching to be more flexible, the two switch valves are independently controlled, and the flexibility and the reliability of the second air channel control system 300 are improved.

In some embodiments, at least three relatively enclosed fresh-keeping spaces are provided within the enclosure. 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 case.

The air inlet of the air channel 110 may be selectively communicated to at least two of the at least three fresh-keeping spaces or to the external space through the first air channel control system 200.

The air outlet of the air path 110 may be selectively communicated to another one of the at least three fresh-keeping spaces or to an external space through the second air path control system 300. The fresh-keeping space in which the air outlets are communicated through the second air path control system 300 is different from the fresh-keeping space in which the air inlets are communicated through the first air path control system 200.

In some embodiments, the air inlet may be selectively and simultaneously communicated to at least two of the at least two fresh-keeping spaces by the first air-path control system 200 such that the at least two fresh-keeping spaces have the same fresh-keeping atmosphere.

For example, fig. 10, in some embodiments, a third fresh-keeping space 104 is further formed in the refrigerator, and the refrigerator further includes a sixth air duct 450, wherein a first end of the sixth air duct 450 is communicated with the third fresh-keeping space 104, and a second end of the sixth air duct 450 is communicated between the first air path control system 200 and the first fresh-keeping space 101. In this way, the third fresh-keeping space 104 is communicated between the first air path control system 200 and the first fresh-keeping space 101 through the sixth air pipe 450.

By the above arrangement, the third fresh-keeping space 104 can form the same fresh-keeping atmosphere as the first fresh-keeping space 101, and the fresh-keeping volume of the same fresh-keeping environment as the first fresh-keeping space 101 can be expanded.

In other embodiments, the air inlet may be selectively communicated to at least two of the at least two fresh-keeping spaces by the first air-path control system 200, and the two fresh-keeping spaces are controlled by the first air-path control system 200 to form different fresh-keeping atmospheres.

In some embodiments, referring to FIG. 11, the first gas circuit control system 200 may include a fourth gas pipe 430, a first end of the fourth gas pipe 430 being in communication with the third fresh-keeping space 104, and a second end of the fourth gas pipe 430 being connected to the gas inlet of the gas circuit 110.

The first gas circuit control system 200 may include a third valve structure 510, the third valve structure 510 being mounted on the fourth gas pipe 430. The third valve structure 510 is configured to control the on and off of the fourth air pipe 430.

The third valve structure 510 may be an electromagnetic switch valve, which is simple in structure and convenient to control.

The third valve structure 510 and the fourth air pipe 430 may be located in the cabinet 10, reducing the influence of the third valve structure 510 on the storage space.

Wherein, the third valve structure 510 is configured to be opened, and the gas driving device 130 is configured to be started, when the third fresh-keeping space 104 is communicated with the air inlet of the air channel 110 through the fourth air pipe 430, and drives the oxygen in the third fresh-keeping space 104 to pass 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 atmosphere.

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

It can be appreciated that the first air path control system 200 may be controlled to make the oxygen concentration of the first fresh-keeping space 101 and the third fresh-keeping space 104 different, so as to form a low-oxygen fresh-keeping environment with different oxygen concentrations.

When the refrigerator is in the first fresh-keeping mode, the third valve structure 510 may be configured to be closed, at which time the oxygen concentration of the third fresh-keeping space 104 may be equal to the oxygen concentration in the atmosphere, at which time the third drawer is a conventional fresh-keeping drawer. Thus, 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 refrigerating fresh-keeping atmosphere. 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.

The third valve structure 510 may be configured to open when the refrigerator is in the first fresh-keeping mode, at which time the oxygen concentration of both the first fresh-keeping space 101 and the third fresh-keeping space 104 is lower than the oxygen concentration in the atmosphere. Thus, 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.

Of course, the third valve structure 510 may be configured to close when the refrigerator is in the second fresh-keeping mode, in which case the third fresh-keeping space 104 and the first fresh-keeping space 101 are both conventional refrigerated fresh-keeping atmospheres. Or third valve structure 510 may be configured to open, at which point third fresh-keeping space 104 is in communication with gas path 110 via fourth gas line 430, and third fresh-keeping space 104 forms a low-oxygen fresh-keeping atmosphere. The first fresh-keeping space 101 forms a normal refrigerated 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 low-oxygen fresh-keeping atmosphere. Thus, 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.

When the refrigerator is in the third fresh-keeping mode, the third valve structure 510 may be configured to be opened, in which case the third fresh-keeping space 104 and the first fresh-keeping space 101 are both a low-oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 is a conventional refrigerated fresh-keeping atmosphere. Or the third valve structure 510 may be configured to close, where both the third fresh-keeping space 104 and the second fresh-keeping space 102 are a conventional refrigerated fresh-keeping atmosphere and the first fresh-keeping space 101 is a low-oxygen fresh-keeping atmosphere.

In some embodiments, at least three relatively enclosed fresh-keeping spaces are provided within the enclosure. The air outlet of the air channel 110 may be selectively communicated to at least two of the at least three fresh-keeping spaces or to an external space through the second air channel control system 300.

The air inlet of the air path 110 may be selectively communicated to another one of the at least three fresh-keeping spaces or to an external space through the first air path control system 200.

The fresh-keeping space in which the air inlet is communicated through the first air path control system 200 is different from the fresh-keeping space in which the air outlet is communicated through the second air path control system 300.

In some embodiments, the first air path control system 200 and the second air path control system 300 may be connected to the cavity wall of the same fresh-keeping space, so that the fresh-keeping space is selectively communicated to the first air path control system 200 or the second air path control system 300 through the first air path control system 200 and the second air path control system 300.

In some embodiments, the air outlet of air circuit 110 may be selectively and simultaneously communicated to at least two of the at least three fresh-keeping spaces by second air circuit control system 300 such that the at least two fresh-keeping spaces have the same fresh-keeping atmosphere.

For example, in some embodiments, fig. 12, the refrigerator further includes a seventh air duct 460, a first end of the seventh air duct 460 being in communication with the third fresh-keeping space 104, and a second end of the seventh air duct 460 being in communication between the second air path control system 300 and the second fresh-keeping space 102. In this way, the third fresh-keeping space 104 is communicated between the second air path control system 300 and the second fresh-keeping space 102 through the seventh air pipe 460.

By the above arrangement, the third fresh-keeping space 104 can form the same fresh-keeping atmosphere as the second fresh-keeping space 102, and the fresh-keeping volume of the same fresh-keeping environment as the second fresh-keeping space 102 is expanded.

In other embodiments, the air outlet may be selectively communicated to at least two of the at least two fresh-keeping spaces through the second air path control system 300, and the two fresh-keeping spaces are controlled to form different fresh-keeping atmospheres through the second air path control system 300.

Referring again to fig. 11, in some embodiments, the second air path control system 300 may include a fifth air pipe 440, a first end of the fifth air pipe 440 being in communication with the third fresh-keeping space 104, and a second end of the fifth air pipe 440 being connected to an air outlet of the air path 110.

The second pneumatic control system 300 may include a fourth valve structure 520, the fourth valve structure 520 being mounted on the fifth pneumatic tube 440. The fourth valve structure 520 is configured to control the on and off of the fifth air pipe 440.

The fourth valve structure 520 may be an electromagnetic switch valve, for example, and has a simple structure and is convenient to control.

Wherein, the fourth valve structure 520 is configured to be opened, and the gas driving device 130 is configured to be started, when the third fresh-keeping space 104 is communicated with the gas outlet of the gas path 110 through the fifth gas pipe 440, and drives the oxygen penetrating through the oxygen permeable membrane 120 to enter the third fresh-keeping space 104, so that the oxygen concentration of the third fresh-keeping space 104 is higher than the oxygen concentration in the atmosphere.

The fourth valve structure 520 and the third valve structure 510 can be configured to close when the refrigerator is in the first fresh-keeping mode, when a conventional refrigerated fresh-keeping atmosphere is formed within the third fresh-keeping space 104.

When the refrigerator is in the first fresh-keeping mode, the fourth valve structure 520 may be configured to be opened, the third valve structure 510 may be configured to be closed, a part of oxygen passing through the oxygen permeable membrane 120 enters the second fresh-keeping space 102 through the second gas path control system 300 under the action of the gas driving device 130, and another part of oxygen enters the third fresh-keeping space 104 through the fifth gas pipe 440, so as to form a high-oxygen fresh-keeping atmosphere in both the second fresh-keeping space 102 and the third fresh-keeping space 104.

In some embodiments, the oxygen of the first fresh food compartment 101 may not be sufficient to supply the second fresh food compartment 102 and the third fresh food compartment 104. For this purpose, the first air path control system 200 is configured to communicate 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, and then the first air path control system 200 is configured to communicate the refrigerating compartment 103 with the air inlet of the air path 110 to continuously provide oxygen for the second fresh-keeping space 102 and the third fresh-keeping space 104. At this time, the first fresh-keeping space 101 forms a low oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 and the third fresh-keeping space 104 form a high oxygen fresh-keeping atmosphere.

In other embodiments, the first air circuit control system 200 is directly configured such that the refrigeration compartment 103 is in communication with the air inlet of the air circuit 110 to provide oxygen to the second fresh food space 102 and the third fresh food space 104, at which time the first fresh food space 101 forms a conventional refrigerated fresh food atmosphere and the second fresh food space 102 and the third fresh food space 104 form a high oxygen fresh food atmosphere.

The fourth valve structure 520 may also be configured to close when the first air duct control system 200 is configured to place the refrigerated compartment 103 in communication with the air inlet of the air duct 110. Thus, the first fresh-keeping space 101 and the third fresh-keeping space 104 form a normal refrigerating fresh-keeping atmosphere, and the second fresh-keeping space 102 forms a high-oxygen fresh-keeping atmosphere.

When the refrigerator is in the third fresh-keeping mode, the fourth valve structure 520 may be configured to be opened, and the third valve structure 510 may be configured to be closed, so that a portion of the oxygen passing through the oxygen permeable membrane 120 enters the third fresh-keeping space 104 through the fifth air pipe 440, and thus, the first fresh-keeping space 101 forms a low oxygen fresh-keeping atmosphere, the second fresh-keeping space 102 forms a conventional refrigerated fresh-keeping atmosphere, and the third fresh-keeping space 104 forms a high oxygen fresh-keeping atmosphere.

When the refrigerator is in the third fresh-keeping mode, the fourth valve structure 520 and the third valve structure 510 may each be configured to be closed such that all of the oxygen passing through the oxygen permeable membrane 120 is discharged through the external space of the second air path control system 300, and thus, the first fresh-keeping space 101 forms a low oxygen fresh-keeping atmosphere, and the second fresh-keeping space 102 and the third fresh-keeping space 104 both form a conventional refrigerated fresh-keeping atmosphere.

When the refrigerator includes both the third valve structure 510 and the fourth valve structure 520, the third valve structure 510 and the fourth valve structure 520 are alternatively opened. That is, the fourth valve structure 520 is configured to be closed when the third valve structure 510 is configured to be open, and the fourth valve structure 520 is configured to be open when the third valve structure 510 is configured to be closed. In this way, the third fresh-keeping space 104 is selectively communicated to the air outlet of the air channel 110 through the second air channel control system 300 or communicated to the air inlet of the air channel 110 through the first air channel control system 200.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A refrigerator, comprising:

A case (10);

at least two relatively closed fresh-keeping spaces are arranged in the box body (10);

The air conditioning component (100) is provided with an air channel (110), and two ends of the air channel (110) are respectively provided with an air inlet and an air outlet;

A gas driving device (130) is arranged in the gas path (110), and the gas driving device (130) can drive gas to flow from the gas inlet to the gas outlet;

An oxygen permeable membrane (120) is arranged in the air passage (110), and the oxygen permeable membrane (120) is configured to allow oxygen in air at the air inlet side to permeate to the air outlet side;

Wherein the air inlet can be selectively communicated to one of the at least two fresh-keeping spaces or to an external space outside the fresh-keeping space of the refrigerator through a first air path control system (200);

The air outlet can be selectively communicated to the other of the at least two fresh-keeping spaces or the external space through a second air path control system (300).

2. The refrigerator according to claim 1, wherein the air inlet is communicated to one of the at least two fresh-keeping spaces through the first air path control system (200), and the air outlet is communicated 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, wherein the air outlet is communicated to the other of the at least two fresh-keeping spaces through the second air path control system (300) when the air inlet is communicated to the external space through the first air path control system (200).

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

5. The refrigerator according to any one of claims 1 to 4, wherein the gas driving means (130) is located downstream of the oxygen permeable membrane (120) in the flow direction of the gas in the gas path (110).

6. The refrigerator according to claim 5, wherein a fan (140) is disposed in the air path (110), and the fan (140) is located upstream of the oxygen permeable membrane (120) along a flow direction of the air in the air path (110).

7. The refrigerator according to any one of claims 1 to 4, wherein the first air path control system (200) has:

At least two first inlets (211), one of the at least two first inlets (211) being communicated with one of the at least two fresh-keeping spaces, the other of the at least two first inlets (211) being communicated with the external space;

-a first outlet (212), the first outlet (212) being in communication with the air inlet;

Wherein the first gas circuit control system (200) is configured to selectively communicate one of the first inlets (211) with the first outlet (212).

8. The refrigerator according to any one of claims 1 to 4, wherein the second air path control system (300) has:

At least two second outlets (312), one of the at least two second outlets (312) being in communication with one of the at least two fresh-keeping spaces, the other of the at least two second outlets (312) being in communication with the external space;

a second inlet (311), the second inlet (311) being in communication with the air outlet;

Wherein the second gas circuit control system (300) is configured to selectively communicate one of the second outlets (312) with 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 in the cabinet (10);

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 (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 in the cabinet (10);

The air outlet can be selectively communicated to at least two of the at least three fresh-keeping spaces or communicated to the external space through the second air path control system (300).

11. The refrigerator according to any one of claims 1 to 4, wherein the cabinet (10) is configured to form a refrigerating compartment (103), the refrigerating compartment (103) forming an external space outside the fresh space of the refrigerator.