WO2023098385A1

WO2023098385A1 - Refrigerator and drawer assembly thereof

Info

Publication number: WO2023098385A1
Application number: PCT/CN2022/129567
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: 2022-11-03
Publication date: 2023-06-08
Also published as: CN116222122A

Abstract

Provided are a refrigerator (1) and a drawer assembly (30) thereof. The drawer assembly (30) comprises a cover plate (100), a drawer body (200) and an electrolytic oxygen removal device (300), wherein the drawer body (200) is provided with a storage space (210) opened upwards, and the drawer body (200) is arranged below the cover plate (100) in a drawable manner, so that when the drawer body (200) is in a closed position, the cover plate (100) covers the storage space (210); and the electrolytic oxygen removal device (300) is arranged on the cover plate (100) and is configured to consume oxygen in the air in the storage space (210) when the drawer body (200) is in the closed position. By means of the drawer assembly (30), the electrolytic oxygen removal device (300) is arranged on the cover plate (100), so that the probability of interference between objects and the electrolytic oxygen removal device (300) is reduced, the degree of contact between the air in the storage space (210) and the electrolytic oxygen removal device (300) is increased, and a freshness-preservation effect is improved.

Description

Refrigerator and its drawer assembly

technical field

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

Background technique

In the prior art, there is a deoxygenation module capable of deoxygenating the refrigerating drawer of the refrigerator. In order not to affect the drawing of the refrigerating drawer, the deoxygenating module is generally installed on the back of the refrigerating drawer, so that the items stored in the refrigerating drawer will inevitably be separated from the deoxidizer. Oxygen modules come into contact, affecting the deoxygenation effect, resulting in reduced work efficiency and a greatly reduced freshness preservation effect.

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 and a drawer assembly thereof.

A further object of the present invention is to improve the freshness preservation effect of the drawer assembly, and improve the reliability and stability of the electrolytic deoxidizer.

Another further object of the present invention is to ensure the smooth exchange of air and cathode membrane components, and improve the electrolysis efficiency of the electrolytic deoxygenation device.

In particular, the present invention provides a drawer assembly for a refrigerator, comprising: a cover plate; a drawer body with an upwardly open storage space, and the drawer body is pullably arranged under the cover plate so that when it When it is in the closed position, the cover plate covers the storage space; the electrolytic deoxygenation device is arranged on the cover plate and is configured to consume oxygen in the air in the storage space when the drawer body is in the closed position.

Optionally, the cover plate is provided with an installation port; and the electrolytic deoxygenation device includes: a housing, fixed at the installation port, with an accommodating cavity inside; a cathode membrane assembly, arranged in the accommodating cavity, to accommodate The cavity separates the liquid storage chamber for containing the electrolyte and the ventilation chamber located below the liquid storage chamber. The ventilation chamber communicates with the storage space through the air intake hole. Oxygen in the air entering the ventilation chamber; the anode plate is arranged in the liquid storage chamber at intervals from the cathode membrane assembly, and is configured to provide reactants to the cathode membrane assembly through an electrochemical reaction and generate electrolytic products.

Optionally, the housing includes an upper shell portion and a lower shell portion, the upper shell portion and the lower shell portion are fastened together to define an accommodating cavity; and an overlapping portion is formed on the outer periphery of the lower shell portion, the overlapping portion On the edge of the installation opening, so that the bottom wall and part of the surrounding wall of the lower shell are below the cover plate, and the air intake hole is opened on the surrounding wall of the lower shell below the cover plate, so that the air in the storage space can enter the ventilation cavity.

Optionally, a through hole is opened on the top of the upper shell; and the drawer assembly also includes: a cover body, which is arranged on the through hole, and the cover body has a liquid replenishment port for replenishing liquid to the liquid storage chamber and is used to generate the anode plate The exhaust port for the exit of the reactants.

Optionally, when the overlapping portion overlaps the edge of the installation opening, the bottom wall of the lower shell is in an inclined state, and the lower shell is provided with a liquid discharge port downstream of the inclination of the bottom wall, so as to discharge the liquid in the ventilation cavity. Effusion.

Optionally, the cathode membrane assembly includes: a fixed frame, which is horizontally fixed in the accommodating cavity, and the inside of the fixed frame is provided with an installation groove along the circumference; the cathode membrane group, and the periphery of the cathode membrane group is fixed in the installation groove, to It is fixedly arranged in the center of the fixed frame.

Optionally, the cathode membrane group includes a catalytic layer, a first waterproof and breathable layer, a conductive layer and a second waterproof and breathable layer arranged in sequence from top to bottom; The cathode tab is electrically connected to provide power to the cathode membrane stack.

Optionally, the upper surface of the fixed frame is provided with a plurality of stepped positioning posts, and the anode plate has a plurality of positioning holes, and the positioning holes and the stepped positioning posts are matched one by one to fix the anode plate to the cathode membrane assembly at intervals. above.

Optionally, the drawer assembly also includes: a cylinder body, which has a drawer space opened forward, and the drawer body can be pulled out or retracted into the drawer space; wherein the drawer assembly is also configured such that its cover plate serves as a roof.

In particular, the present invention also provides a refrigerator, which may include any one of the above-mentioned drawer assemblies.

In the drawer assembly of the present invention, since the drawer body is arranged under the cover plate, and the electrolytic deoxygenation device is arranged on the cover plate, when the drawer body is in the closed position, the electrolytic deoxygenation device can consume the oxygen in the air in the storage space, reducing the drawer The probability of interference between the items in the storage space of the main body and the electrolytic deoxygenation device increases the contact degree between the air in the storage space and the electrolytic deoxygenation device, and improves the freshness preservation effect. In addition, since the drawer body is a frequently moving part, placing the electrolytic deoxygenation device on the static cover can also reduce the influence of the movement of the drawer body on the assembly structure of the electrolytic deoxygenation device, and improve the reliability and reliability of the electrolytic deoxygenation device. stability.

Further, in the drawer assembly of the present invention, since the cathode membrane assembly is arranged in the housing cavity to separate the housing cavity into a liquid storage cavity and a ventilation cavity distributed up and down, the air in the storage space first passes through The air intake hole enters the ventilation cavity and contacts the cathode membrane assembly, so that the distance between the cathode membrane assembly and the object will not be too close, which can not only prevent the object from piercing the cathode membrane assembly, reduce the risk of electrolyte leakage, but also leave the cathode membrane The air intake space under the components ensures smooth air exchange and improves electrolysis efficiency.

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;

2 is a schematic diagram of a drawer assembly in a refrigerator according to an embodiment of the present invention;

3 is an exploded view of a drawer assembly in a refrigerator according to one embodiment of the present invention;

4 is a longitudinal sectional view of a drawer assembly in a refrigerator according to one embodiment of the present invention;

Fig. 5 is an exploded view of a housing and a cover in a drawer assembly according to an embodiment of the present invention;

6 is an exploded view of the cathode membrane assembly and the anode plate in the drawer assembly according to one embodiment of the present invention;

Fig. 7 is an enlarged view of part A in Fig. 6;

FIG. 8 is an exploded view of a drawer assembly in a refrigerator according to another embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Please refer to FIG. 1 , which is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention. The present invention provides a refrigerator 1 , which generally includes 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.

In some embodiments, the refrigerator 1 may further include a drawer assembly 30 , which may be disposed in the box body 10 , and the user may open and close the drawer assembly 30 by pulling to get food therein.

2 and 3, FIG. 2 is a schematic diagram of the drawer assembly 30 in the refrigerator 1 according to an embodiment of the present invention, and FIG. 3 is an exploded view of the drawer assembly 30 in the refrigerator 1 according to an embodiment of the present invention. The drawer assembly 30 may also include a cover plate 100, a drawer body 200, and an electro-deoxidizer 300. The drawer body 200 has an upwardly open storage space 210, and the drawer body 200 is arranged under the cover plate 100 in a pullable manner, so as to When it is in the closed position, the cover plate 100 covers the storage space 210, and the electrolytic deoxygenation device 300 is arranged on the cover plate 100, and consumes the oxygen in the air in the storage space 210 when the drawer body 200 is in the closed position.

In this embodiment, the cover plate 100 can be arranged in the box body 10, the drawer body 200 is located under the cover plate 100, and the drawer body 200 is operable to move between the pull-out position and the closed position. When the drawer body 200 is in the closed position In the above position, the storage space 210 is directly below the cover plate 100, so that the cover plate 100 can be used to cover the storage space 210 to prevent cold air from leaking out.

The electrolytic deoxygenation device 300 is arranged on the cover plate 100. When the drawer body 200 is in the closed position, the air in the storage space 210 of the drawer body 200 can be in contact with the electrolytic deoxygenation device 300, so that the electrolytic deoxygenation device 300 can pass through The electrochemical reaction separates oxygen from the air flowing through the storage space 210 , and leaves nitrogen in the storage space 210 of the drawer body 200 , so as to realize fresh-keeping storage of food.

As mentioned in the background technology section, in the prior art, a deoxygenation module that can deoxygenate the refrigeration drawer of the refrigerator has appeared. In order not to affect the drawing of the refrigeration drawer, the deoxygenation module is generally installed Stored items will inevitably come into contact with the oxygen removal module, affecting the oxygen removal effect.

In order to overcome the defects of the above-mentioned prior art, the drawer body 200 of this embodiment adopts an electrolytic deoxidizer 300 arranged on the cover plate 100 used to cover the storage space 210, which can reduce the distance between the items in the storage space 210 and the The probability of interference from the electrolytic deoxygenation device 300 increases the degree of contact between the air in the storage space 210 and the electrolytic deoxygenation device 300 , improving the freshness preservation effect.

In addition, since the drawer body 200 is a frequently moving part, and the electrolytic deoxygenation device 300 may have a relatively complicated assembly structure (such as a liquid replenishment pipeline, an exhaust pipeline, a power harness, etc.), the electrolytic deoxygenation device 300 is set at The static cover plate 100 can also reduce the influence of the movement of the drawer body 200 on the assembly structure of the electrolytic deoxygenation device 300 and improve the reliability and stability of the electrolytic deoxygenation device 300 .

3 to 5, FIG. 4 is a longitudinal sectional view of the drawer assembly 30 in the refrigerator 1 according to one embodiment of the present invention, and FIG. 5 is an exploded view of the housing and the cover 340 in the drawer assembly 30 according to one embodiment of the present invention. picture.

In some embodiments, the cover plate 100 is provided with an installation opening 110, and the electrolytic oxygen removal device 300 may further include a housing, a cathode membrane assembly 320 and an anode plate 330, the housing is fixed at the installation opening 110, and the housing has a The cathode membrane assembly 320 is arranged in the accommodating cavity, so as to separate the accommodating cavity into a liquid storage cavity 312 for containing electrolyte and a ventilation cavity 314 located below the liquid storage cavity 312, and the ventilation cavity 314 passes through the The air hole 319 communicates with the storage space 210, the cathode membrane assembly 320 consumes oxygen in the air entering the ventilation chamber 314 from the air inlet 319 through an electrochemical reaction, and the anode plate 330 and the cathode membrane assembly 320 are arranged in the liquid storage chamber at intervals Within 312, the anode plate 330 provides reactants (eg, electrons) to the cathode membrane assembly 320 through an electrochemical reaction and generates electrolysis products.

In this embodiment, the cathode membrane assembly 320 can be horizontally fixed in the accommodation cavity of the casing, so that the accommodation cavity can be separated into a liquid storage chamber 312 distributed up and down and a ventilation chamber 314, and the ventilation chamber 314 is located below It can be close to the storage space 210 of the drawer body 200, so that the air in the storage space 210 can enter the ventilation cavity 314 through the air inlet hole 319, and finally contact with the cathode membrane assembly 320, and perform an electrochemical reaction.

The cathode membrane assembly 320 can define the liquid storage chamber 312 with the upper part of the casing, and the cathode membrane assembly 320 can be used as the lower wall of the liquid storage chamber 312, so that the air entering the ventilation chamber 314 can pass through the cathode membrane assembly 320 (cathode membrane assembly 320 has waterproof and breathable function) enters the liquid storage chamber 312, the cathode membrane assembly 320 can be loaded with the negative electrode of the external power supply, and the oxygen in the air can undergo a reduction reaction at the cathode membrane assembly 320 to generate negative ions, namely: O ₂ +2H ₂ O+ 4e ⁻ → 4OH ⁻ .

The anode plate 330 can be horizontally arranged in the liquid storage chamber 312 to be spaced from the cathode membrane assembly 320, and the anode plate 330 can be loaded with the positive pole of an external power supply. , which can be adjusted according to actual needs), the negative ions generated at the cathode membrane assembly 320 flow to the anode plate 330 under the action of the electric field, and an oxidation reaction occurs on the anode plate 330 to generate oxygen, namely: 4OH ^- → O ₂ +2H ₂ O+4e ^- .

In this embodiment, since the cathode membrane assembly 320 is arranged in the accommodation cavity of the casing, and separates the accommodation cavity into the liquid storage chamber 312 and the ventilation chamber 314 distributed up and down, the air in the storage space 210 first passes through The air inlet hole 319 enters the ventilation cavity 314 and contacts the cathode membrane assembly 320, so that the distance between the cathode membrane assembly 320 and the article will not be too close, which can not only prevent the article from piercing the cathode membrane assembly 320, reduce the risk of electrolyte leakage, and The air intake space under the cathode membrane assembly 320 can be reserved to ensure smooth air exchange and improve electrolysis efficiency.

3 to 5, in some embodiments, the housing further includes an upper shell portion 316 and a lower shell portion 318, the upper shell portion 316 and the lower shell portion 318 are snapped together to define an accommodating cavity, and the lower shell portion The outer periphery of 318 is formed with overlapping portion 318a, and overlapping portion 318a overlaps the edge of installation port 110, so that the bottom wall and part of the surrounding wall of lower shell portion 318 are below the cover plate 100, and the air inlet 319 is opened in the cover plate 100. The surrounding wall of the lower shell portion 318 below the board 100 allows the air in the storage space 210 to enter the ventilation cavity 314 .

The upper shell portion 316 can be provided with a plurality of buckles 316b on its peripheral wall, and a plurality of snap grooves 318b are provided on the peripheral wall of the lower shell portion 318. It can extend into the lower shell part 318, and make a plurality of buckles 316b and a plurality of slots 318b match one by one, so as to fix the upper shell part 316 and the lower shell part 318, and define an accommodating cavity.

An overlapping portion 318a is formed on the outer periphery of the lower shell portion 318, and the overlapping portion 318a is overlapped on the edge of the installation opening 110 of the cover plate 100, so that the housing as a whole can be fixed at the installation opening 110, and the bottom of the lower housing portion 318 The wall and part of the surrounding wall sink into the bottom of the cover plate 100 from the installation port 110, and the number of air inlets 319 can be multiple, and they are distributed on the surrounding wall of the lower shell part 318 below the cover plate 100, which can facilitate the air intake holes 319. Being closer to the storage space 210 of the drawer body 200 facilitates the air in the storage space 210 to enter the ventilation cavity 314 .

3 to 5, in some embodiments, a through hole 316a is opened on the top of the upper shell portion 316, and the drawer assembly 30 may further include a cover 340, the cover 340 is disposed on the through hole 316a, and the cover 340 has a liquid supply port 342 for supplying liquid to the liquid storage chamber 312 and an exhaust port 344 for discharging reactants (oxygen) generated by the anode plate 330 . There may also be a connection port at the through hole 316a, and the cover body 340 may be connected with the connection port through a sealing ring 346 so as to seal the through hole 316a.

The cathode membrane assembly 320 is horizontally fixed in the housing cavity to separate the liquid storage chamber 312 in the housing cavity, and the anode plate 330 is arranged in the liquid storage chamber 312. When the electrolytic deoxygenation device 300 is working , the cathode membrane assembly 320 reduces the oxygen in the storage space 210 to negative ions, and the negative ions are oxidized to oxygen at the anode plate 330 (it can also be understood that the electrolytic deoxygenation device 300 can transfer the oxygen in the cathode membrane assembly 320 to the anode plate 330), The top of the upper case 316 is provided with a through hole 316a, and the cover 340 is disposed in the through hole 316a. The cover 340 has an exhaust port 344, that is, the exhaust port 344 is close to the anode plate 330, which can reduce or avoid electrolyte leakage. Leakage is also conducive to shortening the exhaust path, so that the oxygen generated by the anode plate 330 can be discharged in time, which is beneficial to the positive progress of the electrochemical reaction.

Further, a liquid replenishment pipe and an oxygen discharge pipe can also be provided on the cover 340, and the oxygen discharge pipe can also extend into the liquid storage chamber 312, and its end is above the liquid level of the electrolyte, so that the oxygen discharge pipe is closer to the anode plate 330, so that the oxygen generated on the anode plate 330 overflows from the electrolyte and enters the oxygen exhaust pipe.

4, in some embodiments, when the overlapping portion 318a overlaps the edge of the installation opening 110, the bottom wall of the lower shell portion 318 is in an inclined state, and the lower shell portion 318 is provided with a The liquid discharge port 319a is used to discharge the accumulated liquid in the ventilation cavity 314 .

The cathode membrane assembly 320 can be used as the lower wall of the liquid storage chamber 312, and the ventilation chamber 314 can protect the cathode membrane assembly 320, and once the cathode membrane assembly 320 is damaged and ruptured, the ventilation chamber 314 can also collect the liquid that flows out of the liquid storage chamber 312. The electrolytic solution further improves the safety and reliability of the electrolytic deoxygenation device 300.

Referring to Fig. 4, further, when the overlapping portion 318a overlaps the edge of the installation port 110, the bottom wall of the lower shell portion 318 is in an inclined state, so that after the cathode membrane assembly 320 is damaged and ruptured, the electrolyte flows into the ventilation cavity 314 , and is guided to one side by the inclined bottom wall to facilitate discharge from the drain port 319a. The drain port 319a is provided with a drain pipe 319b so as to be guided to the outside for collection.

6 and 7, FIG. 6 is an exploded view of the cathode membrane assembly 320 and the anode plate 330 in the drawer assembly 30 according to an embodiment of the present invention, and FIG. 7 is an enlarged view of part A in FIG. 6 . In some embodiments, the cathode membrane assembly 320 may further include a fixed frame 322 and a cathode membrane group 324, the fixed frame 322 is horizontally fixed in the accommodating cavity, and the inner side of the fixed frame 322 is provided with a mounting groove 326 along the circumference, the cathode The peripheral edge of the membrane group 324 is fixed in the installation groove 326 so that it is fixedly disposed in the center of the fixing frame 322 .

The outer periphery of the fixed frame 322 can be fixed with the inner wall of the accommodating cavity, specifically, it can be fixed inside the upper shell portion 316. The inner side of the fixed frame 322 is provided with an installation groove 326 along the circumference, and the periphery of the cathode membrane group 324 is fixed in the installation groove. 326, so that the cathode membrane group 324 can be tightened in the center of the fixed frame 322 to provide a bottom wall for the liquid storage chamber 312 stably.

Further, the cathode membrane group 324 also includes a catalytic layer, a first waterproof and breathable layer, a conductive layer 328 and a second waterproof and breathable layer arranged in sequence from top to bottom. The catalyst layer can use noble metal or rare metal catalyst, such as metal platinum, metal gold, metal silver, metal manganese or metal rubidium and so on. The first waterproof and gas-permeable layer and the second waterproof and gas-permeable layer can be waterproof and gas-permeable membranes, so that the electrolyte cannot seep out from the liquid storage chamber 312, and air can enter the liquid storage chamber through the first waterproof and gas-permeable layer and the second waterproof and gas-permeable layer 312. The conductive layer 328 can be made into a corrosion-resistant metal current collector, such as metal nickel, metal titanium, etc., so that it not only has better conductivity, corrosion resistance and supporting strength.

Referring to FIG. 6 , the conductive layer 328 also has an extension portion 328 a , and the extension portion 328 a passes through the installation slot 326 and is electrically connected to the cathode contact sheet 352 to provide electricity to the cathode film group 324 . The fixed frame 322 can also be provided with a protruding portion 322a on one side, and the extension portion 328a of the conductive layer 328 passes through the installation groove 326 and enters the inside of the protruding portion 322a of the fixed frame 322, and the inside of the protruding portion 322a can also be provided with Cathode connecting piece 352, a part of cathode connecting piece 352 is pressed on the extension 328a of the conductive layer 328, and the other part protrudes outward from the protrusion 322a of the fixed frame 322, so as to be connected to the negative pole of the external power supply.

The anode plate 330 can be made of materials with strong corrosion resistance and reducibility, such as metal foam nickel, nickel mesh, etc., and one side of the anode plate 330 can also be connected to the anode electrode 354, and the anode electrode 354 can extend out of the shell. Body, in order to facilitate the positive connection of the external power supply.

Referring to Fig. 6 and Fig. 7, further, the upper surface of the fixed frame 322 is provided with a plurality of stepped positioning columns 329, and the anode plate 330 has a plurality of positioning holes 332, and the positioning holes 332 are matched with the stepped positioning columns 329 one by one, The anode plate 330 is fixed above the cathode membrane assembly 320 at intervals.

Each step positioning column 329 can have a support portion 329a and a fixed portion 329b, the support portion 329a is coaxially arranged with the fixed portion 329b, and the diameter of the support portion 329a is larger than the fixed portion 329b, and the diameter of the fixed portion 329b matches the positioning hole 332, so that When the positioning hole 332 is matched with the fixed portion 329b of the step positioning column 329, the anode plate 330 is lapped on the support portion 329a of the step positioning column 329, which not only realizes fixing the anode plate 330, but also enables the connection between the anode plate 330 and the cathode membrane assembly 320 Keep a certain distance between them to prevent short circuit.

In some specific embodiments, a distance of 5mm to 10mm (such as 5mm, 7mm or 10mm, etc.) can be maintained between the anode plate 330 and the cathode membrane assembly 320, which can avoid the gap between the anode plate 330 and the cathode membrane assembly 320 If the distance is too large, the reaction efficiency will be low, and the oxygen generated by the anode plate 330 cannot be discharged in time due to the small distance, which will affect the reaction process.

Referring to FIG. 8 , FIG. 8 is an exploded view of a drawer assembly 30 in a refrigerator 1 according to another embodiment of the present invention. In some embodiments, the drawer assembly 30 may also include a barrel body 360, the barrel body 360 has a drawing space open forward, the drawer body 200 can be pulled out or retracted into the drawer space, and the drawer assembly 30 is also configured so that Its cover plate 100 serves as the top plate of the drawing space.

That is, the cover plate 100 can not only be used independently to cover the storage space 210 of the drawer body 200, but also can be used as the top plate of the drawer space, so that the drawer body 200 as a whole can be pulled out or retracted into the drawer space, When in the closed position, the drawer body 200 can be placed in the cylinder body 360 as a whole, and the top plate of the cylinder body 360 (ie, the cover plate 100 ) covers the storage space 210, and the electrolytic deoxygenation device arranged on the cylinder body 360 top plate 300 consumes oxygen in the air in storage space 210 .

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 drawer assembly for a refrigerator, comprising:

cover;

The drawer body has an upwardly open storage space, and the drawer body is pullably arranged under the cover plate, so that when it is in the closed position, the cover plate covers the storage space;

The electrolytic deoxygenation device is arranged on the cover plate and is configured to consume oxygen in the air in the storage space when the drawer body is in the closed position.
The drawer assembly of claim 1, wherein

The cover plate is provided with an installation port; and the electrolytic deoxidizer includes:

The housing is fixed at the installation port, and has an accommodating cavity inside;

The cathode membrane assembly is arranged in the accommodating cavity, so as to separate the accommodating cavity into a liquid storage cavity for containing electrolyte and a ventilation cavity below the liquid storage cavity, and the ventilation cavity passes through the The air hole communicates with the storage space, and the cathode membrane assembly is configured to consume oxygen in the air entering the ventilation cavity from the air inlet hole through an electrochemical reaction;

The anode plate is arranged in the liquid storage cavity at a distance from the cathode membrane assembly, and is configured to provide reactants to the cathode membrane assembly through an electrochemical reaction and generate an electrolysis product.
The drawer assembly of claim 2, wherein

The housing includes an upper shell part and a lower shell part, the upper shell part and the lower shell part are fastened to define the accommodating cavity; and

An overlapping portion is formed on the outer periphery of the lower shell portion, and the overlapping portion overlaps the edge of the installation opening, so that the bottom wall and part of the surrounding wall of the lower shell portion are below the cover plate, so that The air intake hole is opened on the peripheral wall of the lower shell portion below the cover plate, so that the air in the storage space can enter the ventilation cavity.
The drawer assembly of claim 3, wherein

The top of the upper shell is provided with a through hole; and the drawer assembly also includes:

The cover body is arranged on the through hole, and the cover body has a liquid replenishment port for replenishing liquid to the liquid storage chamber and an exhaust port for discharging reactants generated by the anode plate.
A drawer assembly according to claim 3 or 4, wherein

When the overlapping portion overlaps the edge of the installation port, the bottom wall of the lower shell is in an inclined state, and the lower shell is provided with a liquid discharge port downstream of the inclination of the bottom wall, so as to discharge Fluid accumulation in the ventilation cavity.
The drawer assembly according to claim 3 or 4, wherein the cathode membrane assembly comprises:

The fixed frame is horizontally fixed in the accommodating cavity, and the inner side of the fixed frame is provided with a mounting groove along the circumferential direction;

The cathode membrane group, the periphery of the cathode membrane group is fixed in the installation groove, so that it is fixedly arranged in the center of the fixing frame.
The drawer assembly of claim 6, wherein

The cathode membrane group includes a catalytic layer, a first waterproof and breathable layer, a conductive layer and a second waterproof and breathable layer arranged in sequence from top to bottom; and

The conductive layer has an extension, and the extension passes outward through the installation slot and is electrically connected to the cathode contact piece to provide power to the cathode film group.
The drawer assembly of claim 6, wherein

The upper surface of the fixed frame is provided with a plurality of step positioning columns, and the anode plate has a plurality of positioning holes, and the positioning holes cooperate with the step positioning columns one by one, so as to space the anode plate fixed above the cathode membrane assembly.
The drawer assembly according to any one of claims 1-4, 7-8, further comprising:

The cylinder has a drawing space open forward, and the drawer body can be pulled out or retracted into the drawing space; wherein

The drawer assembly is also configured such that its cover plate serves as the top plate of the drawing space.
A refrigerator, comprising the drawer assembly according to any one of claims 1-9.