WO2023098378A1

WO2023098378A1 - Refrigerator

Info

Publication number: WO2023098378A1
Application number: PCT/CN2022/129276
Authority: WO
Inventors: 黄璐璐; 费斌; 苗建林
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-12-03
Filing date: 2022-11-02
Publication date: 2023-06-08
Also published as: CN116222086A

Abstract

A refrigerator (1), comprising a refrigerator body (10) and an electrolytic oxygen removal device (200). The refrigerator body (10) defines an oxygen-enriched space (110). The electrolytic oxygen removal device (200) is provided on the refrigerator body (10) and located outside the oxygen-enriched space (110). The electrolytic oxygen removal device (200) comprises a housing (201) and an electrolytic bin (202) located in the housing (201). The housing (201) has an air inlet (204) allowing air outside the oxygen-enriched space (110) to enter the housing (201). The electrolytic bin (202) is configured to separate oxygen in the air in the housing (201) by means of an electrochemical reaction, and to deliver the separated oxygen to the oxygen-enriched space (110).

Description

refrigerator

technical field

The invention relates to the field of refrigeration and freezing, in particular to a refrigerator.

Background technique

In the prior art, there has been a deoxygenation module capable of deoxygenating the refrigerating drawer of the refrigerator, which uses electrochemical reactions to consume or separate the oxygen in the storage compartment. However, it cannot create a high-oxygen environment, which is not conducive to some Environmental food materials (such as fresh meat, etc.) storage.

Contents of the invention

An object of the present invention is to overcome at least one defect in the prior art and provide a refrigerator.

A further object of the present invention is to use the electrolytic deoxygenation device to create an oxygen-enriched space.

Another further object of the present invention is to separate the oxygen in the oxygen-poor space and transport it to the oxygen-enriched space, so that the refrigerator has both an oxygen-enriched space and an oxygen-poor space.

In particular, the present invention provides a refrigerator, comprising: a box body, the box body defines an oxygen-enriched space; an electrolysis chamber within an enclosure having an air inlet for admitting outside air from an oxygen-enriched space therein, the electrolysis chamber configured to separate oxygen from the air within the enclosure by an electrochemical reaction, and deliver the separated oxygen to Oxygen-enriched space.

Optionally, the box body defines an oxygen-poor space; the electrolytic chamber has an oxygen exhaust port for discharging oxygen, the air inlet communicates with the oxygen-depleted space, and the oxygen exhaust port communicates with the oxygen-enriched space, so that the air in the oxygen-depleted space The oxygen is delivered to the oxygen-enriched space.

Optionally, the tank further includes a first inner tank defining an oxygen-enriched space and a second inner tank defining an oxygen-poor space; and the electrolytic deoxygenation device is disposed in the second inner tank.

Optionally, the box body further includes a first drawer defining an oxygen-enriched space and a second drawer defining an oxygen-poor space; and the electrolytic deoxygenation device is disposed in the second drawer.

Optionally, the rear wall of the second drawer has a first installation opening, the electrolytic deoxygenation device is fixed outside the rear wall of the second drawer, and the air inlet communicates with the first installation opening.

Optionally, the second drawer is open upwards; the box body also includes a cover plate for sealing the oxygen-enriched space; the cover plate or the first drawer is provided with an oxygen inlet opening to the oxygen-enriched space, and the oxygen inlet is connected to the oxygen exhaust port Pass.

Optionally, the box body further includes: a first drawer assembly, which includes a first cylinder and a first drawer body, the first cylinder defines an oxygen-enriched space open forward, and the first drawer body can be drawn out or retracted into the oxygen-enriched space. Oxygen space; the second drawer assembly, which includes a second cylinder and a second drawer body, the second cylinder defines an oxygen-poor space open forward, and the second drawer body can be drawn out or retracted into the oxygen-depleted space; and the electrolysis The oxygen device is arranged on the second cylinder body.

Optionally, the first drawer assembly further includes a first sealing ring disposed at the opening of the first cylinder to seal the gap between the first cylinder and the first drawer body; and/or, the second drawer assembly also It includes a second sealing ring, which is arranged at the opening of the second barrel to seal the gap between the second barrel and the second drawer body.

Optionally, the rear wall of the second cylinder has a second installation port, and the electrolytic deoxygenation device is fixed outside the rear wall of the second cylinder, and is configured such that the air inlet communicates with the second installation port.

Optionally, a plurality of claws are provided around the second installation opening on the outer side of the rear wall of the second cylinder, and the plurality of claws are used for fixing the electrolytic deoxidizer to the second installation opening.

In the refrigerator of the present invention, since the electrolytic deoxygenation device is located outside the oxygen-enriched space and is arranged on the box body, the external air in the oxygen-enriched space can enter from the air inlet of the electrolytic deoxygenation device, and the oxygen is separated by using the electrolytic chamber. Oxygen can be discharged into the oxygen-enriched space through the oxygen outlet of the electrolytic deoxygenation device, so that the oxygen concentration in the oxygen-enriched space can be maintained at a relatively high level.

Further, in the refrigerator of the present invention, since the air inlet of the electrolytic deoxygenation device communicates with the oxygen-poor space, and the oxygen outlet of the electrolytic deoxygenation device communicates with the oxygen-enriched space, the electrolytic deoxygenation device communicates with the oxygen-poor space. Oxygen is separated and sent to the oxygen-enriched space. Therefore, the electrolytic deoxygenation device can create an oxygen-poor space and an oxygen-enriched space with a certain difference in oxygen concentration for the refrigerator, which enriches the storage function of the refrigerator and improves the user experience.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

FIG. 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the connection relationship between the first liner and the electrolytic deoxygenation device in the refrigerator according to one embodiment of the present invention;

Fig. 3 is a schematic diagram of an electrolytic deoxygenation device in a refrigerator according to an embodiment of the present invention;

Fig. 4 is a cross-sectional view of an electrolytic deoxidizer in a refrigerator according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of the connection relationship between the first inner tank, the second inner tank and the electrolytic deoxygenation device in the refrigerator according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of the connection relationship between the first drawer, the second drawer and the electrolytic deoxygenation device in the refrigerator according to an embodiment of the present invention;

7 is an exploded view of a second drawer in a refrigerator according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the connection relationship between the first drawer assembly, the second drawer assembly and the electrolytic deoxygenation device in the refrigerator according to an embodiment of the present invention;

FIG. 9 is an exploded view of a second drawer assembly in a refrigerator according to one embodiment of the present invention.

Detailed ways

In the description of this embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", The orientations or positions indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "depth" etc. are based on the orientation in normal use as a reference, and refer to the accompanying drawings The shown orientation or positional relationship can be determined, for example, "front" indicating the orientation refers to the side facing the user. This is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to FIG. 1 , FIG. 1 is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention. The present invention provides a refrigerator 1 . The refrigerator 1 may generally include a box body 10 and a door body 20 . The box body 10 may include an outer shell and a plurality of liners, and the outer shell is located on the outermost side of the overall refrigerator 1 to protect the entire refrigerator 1 . A plurality of inner tanks are wrapped by the outer shell, and the space between them and the outer shell is filled with thermal insulation material (forming a foam layer), so as to reduce the outward heat dissipation of the inner tanks. Each liner can define a storage compartment that is open forward, and the storage compartment can be configured as a refrigerator, freezer, temperature-changing room, etc. The number and functions of the specific storage compartments can be based on prior needs to configure.

The door body 20 is movably arranged in front of the inner tank to open and close the storage compartment of the inner tank. For example, the door body 20 can be set on one side of the front of the box body 10 in a hinged manner, and can be opened and closed by pivoting. Storage room.

Referring to Fig. 2, Fig. 2 is a schematic diagram of the connection relationship between the first liner 212 and the electrolytic deoxygenation device 200 in the refrigerator 1 according to one embodiment of the present invention. In some embodiments, an oxygen-enriched space 110 can also be defined in the box body 10. As the name implies, an "oxygen-enriched space 110" refers to a space with a relatively high oxygen concentration. Users can store "oxygen-loving" ingredients in the oxygen-enriched space 110. In order to obtain better storage effect.

The refrigerator 1 can also include an electrolytic deoxygenation device 200. The electrolytic deoxygenation device 200 is arranged on the box body 10 and is located outside the oxygen-enriched space 110. The electrolytic deoxygenation device 200 can also include a casing 201 and a The electrolysis chamber 202, the casing 201 has an air inlet 204 that allows the outside air of the oxygen-enriched space 110 to enter therein, the electrolysis chamber 202 is configured to separate the oxygen in the air entering the casing 201 from the air inlet 204 through an electrochemical reaction, And the separated oxygen is sent to the oxygen-enriched space 110 .

Referring to Fig. 3 and Fig. 4, Fig. 3 is a schematic diagram of an electrolytic deoxygenation device 200 in a refrigerator according to an embodiment of the present invention, and Fig. 4 is a cross-sectional view of the electrolytic deoxygenation device 200 in a refrigerator 1 according to an embodiment of the present invention. Specifically, the electrolytic chamber 202 of the electrolytic deoxygenation device 200 may also include a housing, a cathode plate and an anode plate, the housing is opened toward the air inlet 204 side of the casing 201 to form an opening, and the cathode plate has a waterproof and breathable function (such as waterproof Gas-permeable film), and set on the opening of the shell, the anode plate is set in the shell, the cathode plate is connected to the negative pole of the external power supply, the anode plate is connected to the positive pole of the external power supply, and the shell is filled with electrolyte.

The air (the air outside the oxygen-enriched space 110) that enters from the air inlet 204 of the casing 201 enters the housing through the cathode plate, and a reduction reaction occurs at the cathode plate to generate negative ions, namely: O ₂ +2H ₂ O+4e ^- →4OH ^- ; negative ions flow to the anode plate under the action of the electric field, and oxidation reaction occurs on the anode plate to generate oxygen, namely: 4OH ^- →O ₂ +2H ₂ O+4e ^- , so that the Oxygen in the air inside the enclosure 201 is separated. The top of the casing can also be provided with an oxygen discharge port 203, and the separated oxygen is discharged from the electrolytic deoxygenation device 200 through the oxygen discharge port 203, and the oxygen discharge port 203 is also connected to an oxygen delivery pipe 300 (as shown in Figure 2), and the oxygen delivery pipe 300 will The part of oxygen is directly sent into the oxygen-enriched space 110 to maintain the oxygen concentration in the oxygen-enriched space 110 at a relatively high level.

In this embodiment, since the electrolytic deoxygenation device 200 is located outside the oxygen-enriched space 110 and installed on the box body 10 , the design positions of the electrolytic deoxygenation device 200 can be varied. For example, the electrolytic deoxygenation device 200 can be installed on the shell of the box body 10, and the air inlet 204 of its casing 201 is communicated with the external environment, that is, the electrolytic deoxygenation device 200 absorbs the air in the surrounding environment of the refrigerator 1; For example, the electrolytic oxygen removal device 200 can be installed in the air duct of the refrigerator 1, that is, the electrolytic oxygen removal device 200 absorbs the air in the air duct, and the air flow in the air duct has a certain wind speed, which can also improve the electrolysis efficiency.

In addition, the electrolytic deoxygenation device 200 can also be installed on other compartments of the box body 10, that is, the electrolytic deoxygenation device 200 can absorb the air in the compartment, separate the oxygen in the air and send it to the rich In the oxygen space 110, the nitrogen in the air is kept in the chamber, which can not only maintain the oxygen concentration in the oxygen-enriched space 110, but also create an oxygen-poor space 120 for the refrigerator 1, so that the user can put the "anaerobic "Ingredients are stored in this space to obtain better storage effect.

Referring to FIG. 5 , FIG. 5 is a schematic diagram of the connection relationship between the first inner tank 212 , the second inner tank 214 and the electrolytic deoxygenation device 200 in the refrigerator 1 according to an embodiment of the present invention. In particular, an oxygen-poor space 120 that is independent from the oxygen-enriched space 110 can also be defined in the box body 10. The air inlet 204 on the casing 201 of the electrolytic deoxygenation device 200 communicates with the oxygen-poor space 120. The electrolytic chamber 202 The oxygen exhaust port 203 communicates with the oxygen-enriched space 110 through the oxygen delivery pipe 300 .

In some specific embodiments, in order to improve the electrolysis efficiency, a fan can also be installed in the oxygen-rich space 110 or the oxygen-poor space 120 .

For example, the oxygen-enriched space 110 is provided with an induced draft fan 310 (as shown in FIG. 2 ) to promote the oxygen separated by the electrolytic deoxygenation device 200 to enter the oxygen-enriched space 110 quickly, thereby promoting the electrolytic reaction to proceed forward (reducing the electrolytic reaction product) to improve the electrolysis efficiency; in addition, the oxygen concentration in the oxygen-enriched space 110 can also be adjusted by using the induced draft fan 310.

As another example, the oxygen-deficient space 120 is provided with a blower fan 320 (as shown in FIG. 5 ), so that the air in the oxygen-deficient space 120 quickly passes through the air inlet 204 on the casing 201 and contacts the electrolysis chamber 202, thereby making the air The electrolysis reaction proceeds forward (increases the reactants of the electrolysis reaction), and the electrolysis efficiency is improved; in addition, the oxygen concentration in the oxygen-poor space 120 is adjusted by using the blower fan 320 .

In this embodiment, since the air inlet 204 communicates with the oxygen-poor space 120 and the oxygen exhaust port 203 communicates with the oxygen-enriched space 110, the electrolytic deoxygenation device 200 separates the oxygen in the air of the oxygen-poor space 120 and sends it into the Oxygen-enriched space 110, so this embodiment skillfully utilizes the function of electrolytic deoxygenation device 200 to separate oxygen to create an oxygen-poor space 120 and an oxygen-enriched space 110 with certain differences in oxygen concentration for the refrigerator 1, enriching the refrigerator 1 The storage function improves the user experience.

Referring to FIG. 2 and FIG. 5 , in some embodiments, the tank 10 further includes a first inner tank 212 defining the oxygen-enriched space 110 and a second inner tank 214 defining the oxygen-poor space 120 , the electrolytic deoxygenation device 200 Set in the second liner 214.

In this embodiment, since the oxygen-poor space 120 is formed in the second inner tank 214, the electrolytic deoxygenation device 200 is arranged on the second inner tank 214 to facilitate the air in the oxygen-deficient space 120 to enter the electrolytic deoxygenation device 200, and electrolytic reaction.

In this embodiment, the installation method and installation location of the electrolytic deoxygenation device 200 can be set according to actual conditions. For example, the electrolytic deoxygenation device 200 can be arranged inside the second inner bag 214, or can be arranged outside the second inner bag 214, and an installation port can also be provided on the second inner bag 214, and the electrolytic oxygen removal device 200 can be stuck. Connected to the installation port, as long as the air inlet 204 of the electrolytic deoxygenation device 200 can communicate with the oxygen-poor space 120, the oxygen exhaust port 203 can communicate with the oxygen-enriched space 110 through the oxygen delivery pipe 300; another example , the installation position of the electrolytic deoxygenation device 200 can be selected on the bottom wall, top wall, side wall or rear wall of the second inner tank 214; The list goes on and on.

Referring to Figure 6 and Figure 7, Figure 6 is a schematic diagram of the connection relationship between the first drawer 220, the second drawer 230 and the electrolytic deoxidizer 200 in the refrigerator 1 according to an embodiment of the present invention, and Figure 7 is a schematic diagram of the connection relationship between the first drawer 220 and the second drawer 230 according to an embodiment of the present invention An exploded view of the second drawer 230 in the refrigerator 1. In some other embodiments, the box body 10 further includes a first drawer 220 defining the oxygen-enriched space 110 and a second drawer 230 defining the oxygen-poor space 120 , and the electrolytic deoxygenation device 200 is disposed in the second drawer 230 .

The first drawer 220 and the second drawer 230 are retractably disposed in an inner container of the refrigerator 1 , for example, a refrigerated inner container configured as a refrigerator compartment.

Preferably, the first drawer 220 and the second drawer 230 are in the same inner tank, so that the distance between the first drawer 220 and the second drawer 230 can be shortened, so that the electrolytic deoxygenation device 200 arranged in the second inner tank 214 can move toward the second inner tank. A liner 212 delivers oxygen.

Preferably, the first drawer 220 and the second drawer 230 can also be arranged side by side, so that functional partitions can be arranged reasonably, which is both beautiful and practical.

Referring to FIG. 7 , in some specific embodiments, the rear wall of the second drawer 230 has a first installation opening 232 , the electrolytic deoxygenation device 200 is fixed on the outside of the rear wall of the second drawer 230 , and the air inlet 204 is connected to the first installation port 232 . A mounting port 232 communicates with them.

The casing 201 of the electrolytic deoxygenation device 200 can be flat as a whole, the wide surface of the casing 201 is slightly larger than the first installation port 232, and the air inlet 204 is arranged on the wide surface of the casing 201, so that the electrolytic oxygen deoxidizer can be 200 completely covers the first installation opening 232 and makes the air inlet 204 directly face the inside of the second drawer 230 .

In this embodiment, the installation method of the electrolytic deoxygenation device 200 can also be in the form of fasteners, clamping parts, etc., which will not be repeated here.

Referring to Fig. 7, further, the first drawer 220 and the second drawer 230 can be opened upwards, and the first drawer 220 and the second drawer 230 can also be configured with a cover plate 240 for sealing it, and the cover plate 240 is fixedly arranged inside In the bladder, when the first drawer 220 or the second drawer 230 is fully retracted, the cover plate 240 is placed above the first drawer 220 or the second drawer 230 so as to seal the space therein.

In addition, the first drawer 220 and the second drawer 230 can share a cover plate 240 , for example, when the first drawer 220 and the second drawer 230 are arranged side by side, one cover plate 240 can seal the first drawer 220 and the second drawer 230 simultaneously. Of course, the first drawer 220 and the second drawer 230 can also be equipped with a cover plate 240 respectively, which can be specifically designed according to the positional relationship between the first drawer 220 and the second drawer 230 .

The cover plate 240 or the first drawer 220 is provided with an oxygen inlet 242 (shown in FIG. 6 ) open to the oxygen-enriched space 110 , and the oxygen inlet 242 communicates with the oxygen outlet 203 .

The oxygen inlet port 242 is open to the oxygen-enriched space 110 , and the oxygen inlet port 242 communicates with the oxygen exhaust port 203 through the oxygen delivery pipe 300 so as to transport the oxygen separated by the electrolytic deoxygenation device 200 to the oxygen-enriched space 110 .

Referring to FIG. 6 , preferably, the oxygen inlet 242 is arranged on the stationary cover plate 240 , which is conducive to stably connecting the oxygen inlet 242 and the oxygen delivery tube 300 to prevent loosening of the interface.

Referring to Figure 8 and Figure 9, Figure 8 is a schematic diagram of the connection relationship between the first drawer assembly 250, the second drawer assembly 260 and the electrolytic deoxidizer 200 in the refrigerator 1 according to an embodiment of the present invention, and Figure 9 is a schematic diagram of the connection relationship according to an embodiment of the present invention An exploded view of the second drawer assembly 260 in the refrigerator 1 of the example. In some other embodiments, the box body 10 may further include a first drawer assembly 250, the first drawer assembly 250 includes a first cylinder body 252 and a first drawer body 254, the first cylinder body 252 defines a front open oxygen-enriched Space 110, the first drawer body 254 can be withdrawn or retracted into the oxygen-enriched space 110, the second drawer assembly 260 includes a second cylinder 262 and a second drawer body 264, the second cylinder 262 defines an oxygen-poor space open forward 120 , the second drawer body 264 can be pulled out or retracted into the oxygen-poor space 120 , and the electrolytic deoxygenation device 200 is set on the second cylinder 262 .

In this embodiment, the electrolytic deoxygenation device 200 is set in the second cylinder 262, and the air in the second cylinder 262 can enter the electrolytic deoxygenation device 200, separate oxygen, and then deliver the separated oxygen to the second cylinder. A cylinder 252 , so that the first cylinder 252 forms the oxygen-enriched space 110 , and the second cylinder 262 forms the oxygen-poor space 120 .

Referring to FIG. 9 , in some further embodiments, the electrolytic deoxygenation device 200 can be arranged outside the rear wall of the second cylinder 262 . Specifically, the rear wall of the second cylinder 262 has a second installation port 262a, and the electrolytic deoxygenation device 200 is fixed on the outside of the rear wall of the second cylinder 262, and its air inlet 204 communicates with the second installation port 262a. .

As mentioned above, the wide surface of the casing 201 can also be slightly larger than the second installation port 262a, so that the electrolytic deoxygenation device 200 can completely cover the second installation port 262a, and make the air inlet 204 directly face the second cylinder The interior of the body 262.

Referring to FIG. 9 , in some further embodiments, a plurality of claws 262b are provided on the outer side of the rear wall of the second cylindrical body 262 around the second installation opening 262a, and the plurality of claws 262b are used to fix the electrolytic deoxidizer 200 At the second installation port 262a.

The second installation port 262a can be square, and at least one claw 262b is provided on each edge of the second installation port 262a. At the edge of the shell 201, the electrolytic deoxygenation device 200 is fixed, which is simple and convenient, and easy to disassemble.

Referring to FIG. 9, in some embodiments, the first drawer assembly 250 further includes a first sealing ring (not shown in the figure), and the first sealing ring is disposed at the opening of the first cylinder 252 to seal the first cylinder 252 and the first drawer body 254; and/or, the second drawer assembly 260 also includes a second sealing ring 266, and the second sealing ring 266 is arranged at the opening of the second cylinder 262 to seal the second cylinder The gap between the body 262 and the second drawer body 264.

Both the first sealing ring and the second sealing ring 266 may be made of rubber material. When the first drawer body 254 is in the closed position, the inner side of the first drawer body 254 can be in contact with the first sealing ring at the opening of the first cylinder 252, which can effectively improve the airtightness of the oxygen-enriched space 110, and then The oxygen concentration of the oxygen-enriched space 110 is effectively maintained. Likewise, the second sealing ring 266 can effectively improve the airtightness of the oxygen-poor space 120 and effectively maintain the oxygen concentration in the oxygen-poor space 120 .

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A refrigerator comprising:

a box body, the box body defines an oxygen-enriched space;

The electrolytic deoxygenation device is arranged in the box and is located outside the oxygen-enriched space. The electrolytic deoxygenation device includes a casing and an electrolytic chamber inside the casing. The outside air of the oxygen space enters the air inlet therein, and the electrolysis chamber is configured to separate oxygen from the air in the housing through an electrochemical reaction, and deliver the separated oxygen to the oxygen-enriched space.
The refrigerator according to claim 1, wherein

The box defines an oxygen-poor space;

The electrolysis chamber has an oxygen exhaust port for discharging oxygen, the air inlet communicates with the oxygen-poor space, and the oxygen exhaust port communicates with the oxygen-enriched space, so that the air in the oxygen-depleted space The oxygen is delivered to the oxygen-enriched space.
The refrigerator according to claim 2, wherein

The tank also includes a first liner defining the oxygen-enriched space and a second liner defining the oxygen-poor space; and

The electrolytic deoxygenation device is arranged in the second inner tank.
The refrigerator according to claim 2, wherein

The tank also includes a first drawer defining the oxygen-enriched space and a second drawer defining the oxygen-depleted space; and

The electrolytic deoxygenation device is arranged in the second drawer.
The refrigerator according to claim 4, wherein

The rear wall of the second drawer has a first installation opening, and the electrolytic deoxygenation device is fixed on the outer side of the rear wall of the second drawer, and the air inlet is communicated with the first installation opening.
The refrigerator according to claim 4, wherein

The second drawer opens upwards;

The box body also includes a cover plate for sealing the oxygen-enriched space;

The cover plate or the first drawer is provided with an oxygen inlet opening to the oxygen-enriched space, and the oxygen inlet communicates with the oxygen exhaust port.
The refrigerator according to claim 2, wherein the box further comprises:

The first drawer assembly includes a first cylinder and a first drawer body, the first cylinder defines the oxygen-enriched space opened forward, and the first drawer body can be drawn out or retracted into the oxygen-enriched space space;

The second drawer assembly includes a second cylinder and a second drawer body, the second cylinder defines the oxygen-poor space opened forward, and the second drawer body can be drawn out or retracted into the oxygen-depleted space. space; and

The electrolytic deoxygenation device is arranged on the second cylindrical body.
The refrigerator according to claim 7, wherein

The first drawer assembly further includes a first sealing ring disposed at the opening of the first cylinder to seal the gap between the first cylinder and the first drawer body; and/or

The second drawer assembly further includes a second sealing ring disposed at the opening of the second cylinder to seal a gap between the second cylinder and the second drawer body.
The refrigerator according to claim 7, wherein

The rear wall of the second cylinder has a second installation port, the electrolytic deoxygenation device is fixed on the outside of the rear wall of the second cylinder, and is configured so that the air inlet and the second installation port connected.
The refrigerator according to claim 9, wherein

A plurality of claws are provided around the second installation opening on the outer side of the rear wall of the second cylinder, and the plurality of claws are used to fix the electrolytic deoxidizer to the second installation opening.