Refrigerator and drawer assembly thereof

Abstract

This invention provides a refrigerator and its drawer assembly. The drawer assembly includes a cover, a drawer body, and an electrolytic oxygen depletion device. The drawer body has an upward-opening storage space and is pull-outably disposed below the cover so that the cover seals the storage space when the drawer body is in the closed position. The electrolytic oxygen depletion device is disposed on the cover and configured to consume oxygen in the air within the storage space when the drawer body is in the closed position. By placing the electrolytic oxygen depletion device on the cover, this invention reduces the probability of interference between items and the device, increases the contact between the air in the storage space and the device, and improves the preservation effect.

Description

Technical Field

[0001] This invention relates to the field of refrigeration and freezing, and in particular to a refrigerator and its drawer assembly. Background Technology

[0002] Existing technologies include deoxygenation modules that can remove oxygen from the refrigerator's cooling drawers. To avoid affecting the pulling out of the cooling drawers, the deoxygenation module is usually located at the back of the cooling drawer. This inevitably causes the items stored in the cooling drawer to come into contact with the deoxygenation module, affecting the deoxygenation effect, reducing work efficiency, and significantly compromising the preservation effect. Summary of the Invention

[0003] One object of the present invention is to overcome at least one deficiency in the prior art and to provide a refrigerator and its drawer assembly.

[0004] A further objective of this invention is to improve the preservation effect of the drawer assembly and enhance the reliability and stability of the electrolytic deoxygenation device.

[0005] Another further objective of this invention is to ensure unimpeded exchange of air with the cathode membrane assembly, thereby improving the electrolysis efficiency of the electrolytic oxygen descaling device.

[0006] In particular, the present invention provides a drawer assembly for a refrigerator, comprising: a cover plate; a drawer body having an upwardly openable storage space, the drawer body being slidably disposed below the cover plate so that the cover plate seals the storage space when it is in the closed position; and an electrolytic deoxygenation device disposed on the cover plate and configured to consume oxygen in the air within the storage space when the drawer body is in the closed position.

[0007] Optionally, the cover plate has an installation port; and the electrolytic oxygen removal device further includes: a housing, fixed at the installation port, having a accommodating cavity therein; a cathode membrane assembly, disposed in the accommodating cavity to divide the accommodating cavity into a storage cavity for holding electrolyte and a ventilation cavity located below the storage cavity, the ventilation cavity being connected to the storage space through an air inlet, the cathode membrane assembly being configured to consume oxygen in the air entering the ventilation cavity from the air inlet through an electrochemical reaction; and an anode plate, disposed at a distance from the cathode membrane assembly within the storage cavity, configured to provide reactants to the cathode membrane assembly and generate electrolysis products through an electrochemical reaction.

[0008] Optionally, the housing also includes an upper shell and a lower shell, which are engaged to define an accommodating cavity; and an overlapping portion is formed on the outer periphery of the lower shell, which overlaps the edge of the mounting opening so that the bottom wall and part of the peripheral wall of the lower shell are below the cover plate, and an air inlet is opened on the peripheral wall of the lower shell located below the cover plate so that air in the storage space can enter the ventilation cavity.

[0009] Optionally, the top of the upper shell is provided with a through hole; and the drawer assembly further includes: a cover body disposed on the through hole, and the cover body having a liquid inlet for replenishing the liquid storage chamber and a vent for discharging the reactants generated by the anode plate.

[0010] Optionally, when the overlapping part overlaps the edge of the mounting port, the bottom wall of the lower shell is in an inclined state, and the lower shell is provided with a drain port at the downstream of its inclined bottom wall to drain the accumulated liquid in the ventilation cavity.

[0011] Optionally, the cathode membrane assembly further includes: a fixing frame, which is horizontally fixed in the accommodating cavity, and an installation groove is provided on the inner side of the fixing frame along the circumferential direction; and a cathode membrane assembly, the periphery of which is fixed in the installation groove so that it is fixedly set in the center of the fixing frame.

[0012] Optionally, the cathode membrane assembly further includes a catalyst layer, a first waterproof and breathable layer, a conductive layer, and a second waterproof and breathable layer arranged sequentially from top to bottom; and the conductive layer has an extension portion that extends outward through the mounting groove and is electrically connected to the cathode contact plate to supply power to the cathode membrane assembly.

[0013] Optionally, the upper surface of the fixed frame is provided with multiple stepped positioning posts, and the anode plate has multiple positioning holes. The positioning holes and the stepped positioning posts are matched one-to-one to fix the anode plate at intervals above the cathode film assembly.

[0014] Optionally, the drawer assembly further includes: a cylinder having a forward-opening pull-out space, the drawer body being able to be pulled out or retracted into the pull-out space; wherein the drawer assembly is further configured such that its cover serves as the top plate of the pull-out space.

[0015] In particular, the present invention also provides a refrigerator that may include the drawer assembly of any of the above.

[0016] In this invention, the drawer assembly has the drawer body positioned below the cover, while the electrolytic oxygenation device is located on the cover. Therefore, when the drawer body is closed, the electrolytic oxygenation device can consume oxygen in the storage space, reducing the probability of interference between items in the storage space and the device, increasing the contact between the air and the device, and improving the preservation effect. Furthermore, since the drawer body is a frequently moving component, placing the electrolytic oxygenation device on the static cover reduces the impact of drawer body movement on the assembly structure of the device, improving its reliability and stability.

[0017] Furthermore, in the drawer assembly of the present invention, since the cathode film assembly is disposed within the accommodating space of the housing, the accommodating cavity is divided into an upper and lower distributed liquid storage chamber and a ventilation chamber. The air in the storage space first enters the ventilation chamber through the air inlet and comes into contact with the cathode film assembly. This ensures that the cathode film assembly is not too close to the items, which not only prevents the items from puncturing the cathode film assembly and reduces the risk of electrolyte leakage, but also leaves an air intake space below the cathode film assembly to ensure smooth air exchange and improve electrolysis efficiency.

[0018] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a drawer assembly in a refrigerator according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of a drawer assembly in a refrigerator according to an embodiment of the present invention;

[0023] Figure 4 This is a longitudinal cross-sectional view of a drawer assembly in a refrigerator according to an embodiment of the present invention;

[0024] Figure 5 This is an exploded view of the housing and cover in a drawer assembly according to an embodiment of the present invention;

[0025] Figure 6 This is an exploded view of the cathode film assembly and anode plate in a drawer assembly according to an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 Enlarged view of section A in the middle;

[0027] Figure 8 This is an exploded view of a drawer assembly in a refrigerator according to another embodiment of the present invention. Detailed Implementation

[0028] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0029] Please see Figure 1 , Figure 1 This 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 cabinet 10 and a door 20.

[0030] The refrigerator body 10 may include an outer shell and multiple inner liners. The outer shell is located on the outermost side of the overall refrigerator 1 to protect the entire refrigerator 1. The multiple inner liners are enclosed by the outer shell, and the space between them is filled with insulation material (forming a foam layer) to reduce heat loss from the inner liners. Each inner liner may define a forward-opening storage compartment, and the storage compartment may be configured as a refrigerator compartment, freezer compartment, variable temperature compartment, etc. The specific number and function of the storage compartments can be configured according to pre-defined needs.

[0031] The door 20 is movably disposed at the front of the inner liner to open and close the storage compartment of the inner liner. For example, the door 20 can be hinged to one side of the front of the box 10 and the storage compartment can be opened and closed by pivoting.

[0032] In some embodiments, the refrigerator 1 may further include a drawer assembly 30, which may be disposed inside the cabinet 10. Users can open and close the drawer assembly 30 by pulling it out to retrieve food inside.

[0033] See Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the drawer assembly 30 in a refrigerator 1 according to an embodiment of the present invention. Figure 3 This is an exploded view of a drawer assembly 30 in a refrigerator 1 according to an embodiment of the present invention. The drawer assembly 30 may further include a cover 100, a drawer body 200, and an electrolytic deoxygenation device 300. The drawer body 200 has an upwardly open storage space 210, and the drawer body 200 is slidably disposed below the cover 100 so that when it is in the closed position, the cover 100 covers the storage space 210. The electrolytic deoxygenation device 300 is disposed on the cover 100 and consumes oxygen in the air inside the storage space 210 when the drawer body 200 is in the closed position.

[0034] In this embodiment, the cover plate 100 can be disposed inside the box body 10, and the drawer body 200 is located below the cover plate 100. The drawer body 200 can be operably moved between the pulled-out position and the closed position. When the drawer body 200 is in the closed position, its storage space 210 is located 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.

[0035] An electrolytic deoxygenation device 300 is installed 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 come into contact with the electrolytic deoxygenation device 300. In this way, the electrolytic deoxygenation device 300 can separate oxygen from the air flowing over the storage space 210 through an electrochemical reaction, and leave nitrogen in the storage space 210 of the drawer body 200, thereby achieving the preservation and storage of food.

[0036] As described in the background section, existing technologies include deoxygenation modules that can remove oxygen from the refrigerator's cooling drawers. In order not to affect the pulling out of the cooling drawers, the deoxygenation module is generally located on the back of the cooling drawer. This inevitably causes the items stored in the cooling drawer to come into contact with the deoxygenation module, affecting the deoxygenation effect.

[0037] In order to overcome the defects of the prior art, the drawer body 200 of this embodiment adopts an electrolytic deoxygenation device 300 on the cover plate 100 used to seal the storage space 210. This can reduce the probability of interference between the items in the storage space 210 and the electrolytic deoxygenation device 300, increase the contact between the air in the storage space 210 and the electrolytic deoxygenation device 300, and improve the preservation effect.

[0038] Furthermore, since the drawer body 200 is a frequently moving part, and the electrolytic deoxygenation device 300 may have a relatively complex assembly structure (such as replenishment pipes, exhaust pipes, power harnesses, etc.), placing the electrolytic deoxygenation device 300 on the static cover plate 100 can also reduce the impact of the movement of the drawer body 200 on the assembly structure of the electrolytic deoxygenation device 300, thereby improving the reliability and stability of the electrolytic deoxygenation device 300.

[0039] See Figures 3 to 5 , Figure 4 This is a longitudinal cross-sectional view of the drawer assembly 30 in a refrigerator 1 according to an embodiment of the present invention. Figure 5 This is an exploded view of the housing and cover 340 in a drawer assembly 30 according to an embodiment of the present invention.

[0040] In some embodiments, the cover plate 100 has an installation port 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 port 110 and has a accommodating cavity inside. The cathode membrane assembly 320 is disposed in the accommodating cavity to separate the accommodating cavity into a liquid storage chamber 312 for holding electrolyte and a ventilation chamber 314 located below the liquid storage chamber 312. The ventilation chamber 314 is connected to the storage space 210 through an air inlet 319. The cathode membrane assembly 320 consumes oxygen in the air entering the ventilation chamber 314 from the air inlet 319 through an electrochemical reaction. The anode plate 330 is disposed in the liquid storage chamber 312 at intervals from the cathode membrane assembly 320. The anode plate 330 provides reactants (e.g., electrons) to the cathode membrane assembly 320 through an electrochemical reaction and generates electrolysis products.

[0041] In this embodiment, the cathode film assembly 320 can be horizontally fixed in the accommodating cavity of the housing, which can divide the accommodating cavity into a liquid storage cavity 312 and a ventilation cavity 314 distributed vertically. The ventilation cavity 314 is located below and can be close to the storage space 210 of the drawer body 200. This allows air in the storage space 210 to enter the ventilation cavity 314 through the air inlet 319 and eventually come into contact with the cathode film assembly 320 to carry out an electrochemical reaction.

[0042] The cathode membrane assembly 320 can define a liquid storage chamber 312 with the upper part of the housing, and the cathode membrane assembly 320 can also serve as the lower wall surface of the liquid storage chamber 312. In this way, air entering the ventilation chamber 314 can pass through the cathode membrane assembly 320 (which has waterproof and breathable functions) into the liquid storage chamber 312. The cathode membrane assembly 320 can be loaded with the negative electrode of an external power source. Oxygen in the air can undergo a reduction reaction at the cathode membrane assembly 320 to generate negative ions, i.e.: O2 + 2H2O + 4e - →4OH - .

[0043] The anode plate 330 can be horizontally positioned in the liquid storage chamber 312, spaced apart from the cathode membrane assembly 320. The anode plate 330 can be supplied with the positive electrode of an external power source. Since the liquid storage chamber 312 contains an electrolyte (e.g., 0.1–8 mol / L NaOH, 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 influence of the electric field and undergo an oxidation reaction on the anode plate 330 to generate oxygen, i.e., 4OH⁻. - →O2 + 2H2O + 4e - .

[0044] In this embodiment, since the cathode membrane assembly 320 is disposed in the accommodating cavity of the housing, and the accommodating cavity is divided into a liquid storage cavity 312 and a ventilation cavity 314 distributed vertically, the air in the storage space 210 first enters the ventilation cavity 314 through the air inlet 319 and comes into contact with the cathode membrane assembly 320. This ensures that the cathode membrane assembly 320 is not too close to the object, which not only prevents the object from puncturing the cathode membrane assembly 320 and reduces the risk of electrolyte leakage, but also leaves an air intake space below the cathode membrane assembly 320 to ensure smooth air exchange and improve electrolysis efficiency.

[0045] See Figures 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 engaged to define an accommodating cavity. An overlapping portion 318a is formed on the outer periphery of the lower shell portion 318. The overlapping portion 318a overlaps the edge of the mounting opening 110 so that the bottom wall and part of the peripheral wall of the lower shell portion 318 are below the cover plate 100. An air inlet 319 is formed on the peripheral wall of the lower shell portion 318 below the cover plate 100 so that air in the storage space 210 can enter the ventilation cavity 314.

[0046] The upper shell 316 may be provided with multiple buckles 316b on its peripheral wall, and the lower shell 318 may be provided with multiple slots 318b on its peripheral wall. When the upper shell 316 and the lower shell 318 are fastened together, the peripheral wall of the upper shell 316 may extend into the lower shell 318, and the multiple buckles 316b and the multiple slots 318b may be matched one-to-one to fix the upper shell 316 and the lower shell 318 and define the accommodating cavity.

[0047] The lower shell 318 has an overlapping portion 318a on its outer periphery. The overlapping portion 318a overlaps the edge of the mounting opening 110 of the cover plate 100. This can fix the entire shell at the mounting opening 110 and allow the bottom wall and part of the peripheral wall of the lower shell 318 to be recessed below the cover plate 100 from the mounting opening 110. There can be multiple air inlets 319, which are distributed on the peripheral wall of the lower shell 318 below the cover plate 100. This allows the air inlets 319 to be closer to the storage space 210 of the drawer body 200, thereby facilitating the entry of air from the storage space 210 into the ventilation cavity 314.

[0048] See Figures 3 to 5 In some embodiments, the top of the upper shell 316 has a through hole 316a, and the drawer assembly 30 may also include a cover 340 disposed on the through hole 316a. The cover 340 has a replenishment port 342 for replenishing the liquid storage chamber 312 and an exhaust port 344 for discharging the reactants (oxygen) generated by the anode plate 330. The through hole 316a may also have a connection port, and the cover 340 may be connected to the connection port by a sealing ring 346 to seal the through hole 316a.

[0049] The cathode membrane assembly 320 is horizontally fixed in the accommodating cavity of the housing to separate the liquid storage chamber 312. The anode plate 330 is disposed 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 into negative ions. The negative ions are oxidized into 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). A through hole 316a is opened at the top of the upper shell 316. 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. This can reduce or avoid electrolyte leakage and shorten the exhaust path so that the oxygen generated by the anode plate 330 can be discharged in time, which is conducive to the forward electrochemical reaction.

[0050] Furthermore, a liquid replenishment pipe and an oxygen venting pipe can also be provided on the cover 340. The oxygen venting pipe can also extend into the liquid storage chamber 312, with its end positioned above the electrolyte level. This allows the oxygen venting pipe to be closer to the anode plate 330, so that the oxygen generated on the anode plate 330 can overflow from the electrolyte and enter the oxygen venting pipe.

[0051] See Figure 4 In some embodiments, when the overlapping portion 318a overlaps the edge of the mounting port 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 drain port 319a at the downstream of its inclined bottom wall so as to drain the accumulated liquid in the ventilation cavity 314.

[0052] The cathode membrane assembly 320 can serve as the lower wall of the liquid storage chamber 312, and the ventilation chamber 314 can protect the cathode membrane assembly 320. In the event that the cathode membrane assembly 320 is damaged or ruptured, the ventilation chamber 314 can also collect the electrolyte flowing out of the liquid storage chamber 312, further improving the safety and reliability of the electrolytic deoxygenation device 300.

[0053] See Figure 4 Furthermore, when the overlapping part 318a overlaps the edge of the mounting port 110, the bottom wall of the lower shell part 318 is in an inclined state. In this way, after the cathode film assembly 320 is damaged and broken, the electrolyte flows into the ventilation cavity 314 and is guided to one side by the inclined bottom wall, so as to be discharged from the drain port 319a. A drain pipe 319b is provided at the drain port 319a so as to guide it to the outside for collection.

[0054] See Figure 6 and Figure 7 , Figure 6 This is an exploded view of the cathode film assembly 320 and the anode plate 330 in the drawer assembly 30 according to an embodiment of the present invention. Figure 7 yes Figure 6Enlarged view of part A. In some embodiments, the cathode membrane assembly 320 may further include a fixing frame 322 and a cathode membrane group 324. The fixing frame 322 is horizontally fixed in the accommodating cavity. The inner side of the fixing frame 322 is provided with a mounting groove 326 along the circumferential direction. The periphery of the cathode membrane group 324 is fixed in the mounting groove 326 so that it is fixedly disposed in the center of the fixing frame 322.

[0055] The outer periphery of the fixing frame 322 can be fixed to the inner wall of the accommodating cavity, specifically, it can be fixed inside the upper shell 316. The inner side of the fixing frame 322 is provided with a mounting groove 326 along the circumferential direction. The periphery of the cathode membrane assembly 324 is fixed in the mounting groove 326, so that the cathode membrane assembly 324 can be stretched taut in the center of the fixing frame 322 to stably provide a bottom wall for the liquid storage cavity 312.

[0056] Furthermore, the cathode membrane assembly 324 also includes, from top to bottom, a catalytic layer, a first waterproof and breathable layer, a conductive layer 328, and a second waterproof and breathable layer. The catalytic layer can use a precious or rare metal catalyst, such as platinum, gold, silver, manganese, or rubidium. The first and second waterproof and breathable layers can be waterproof and breathable membranes, preventing electrolyte from leaking out of the storage chamber 312, while allowing air to pass through them into the storage chamber 312. The conductive layer 328 can be made into a corrosion-resistant metal current collector, such as nickel or titanium, to provide excellent conductivity, corrosion resistance, and structural strength.

[0057] See Figure 6 The conductive layer 328 also has an extension 328a, which extends outward through the mounting groove 326 and is electrically connected to the cathode contact plate 352 to energize the cathode film assembly 324. The fixing frame 322 may also have a protrusion 322a on one side. The extension 328a of the conductive layer 328 extends outward through the mounting groove 326 and enters the protrusion 322a of the fixing frame 322. The cathode contact plate 352 may also be disposed inside the protrusion 322a. A portion of the cathode contact plate 352 is pressed against the extension 328a of the conductive layer 328, while another portion extends outward from the protrusion 322a of the fixing frame 322 to facilitate connection to the negative terminal of an external power source.

[0058] The anode plate 330 can be made of a material with strong corrosion resistance and reducing properties, such as nickel foam or nickel mesh. An anode contact plate 354 can also be connected to one side of the anode plate 330. The anode contact plate 354 can extend out of the housing so that the positive terminal of an external power source can be connected.

[0059] See Figure 6 and Figure 7Furthermore, the upper surface of the fixed frame 322 is provided with a plurality of stepped positioning posts 329, and the anode plate 330 has a plurality of positioning holes 332. The positioning holes 332 and the stepped positioning posts 329 are matched one-to-one to fix the anode plate 330 on the top of the cathode film assembly 320 at intervals.

[0060] Each step positioning post 329 may have a supporting part 329a and a fixing part 329b. The supporting part 329a and the fixing part 329b are coaxially arranged, and the diameter of the supporting part 329a is larger than that of the fixing part 329b. The diameter of the fixing part 329b matches the positioning hole 332. In this way, when the positioning hole 332 is engaged with the fixing part 329b of the step positioning post 329, the anode plate 330 overlaps on the supporting part 329a of the step positioning post 329. This not only fixes the anode plate 330, but also maintains a certain distance between the anode plate 330 and the cathode film assembly 320 to prevent short circuit.

[0061] In some specific embodiments, a distance of 5 mm to 10 mm (e.g., 5 mm, 7 mm, or 10 mm) can be maintained between the anode plate 330 and the cathode film assembly 320. This can avoid low reaction efficiency due to an excessively large distance between the anode plate 330 and the cathode film assembly 320, and also avoid the oxygen generated by the anode plate 330 not being able to be discharged in time due to an excessively small distance, thus affecting the reaction process.

[0062] See Figure 8 , Figure 8 This 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 further include a cylinder 360 having a forward-opening pull-out space, a drawer body 200 being able to be pulled out or retracted into the pull-out space, and the drawer assembly 30 being configured such that its cover 100 serves as the top plate of the pull-out space.

[0063] 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 serve as the top plate of the pull-out space, so that the entire drawer body 200 can be pulled out or retracted into the pull-out space. When in the closed position, the entire drawer body 200 can be placed inside the cylinder 360, and the top plate of the cylinder 360 (i.e., the cover plate 100) covers its storage space 210, and the oxygen in the air in the storage space 210 is consumed by the electrolytic deoxygenation device 300 provided on the top plate of the cylinder 360.

[0064] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A drawer assembly for a refrigerator, characterized in that... include: Cover plate; The drawer body has an upward-opening storage space, and the drawer body is pull-outly disposed below the cover so that when it is in the closed position, the cover covers the storage space; An electrolytic oxygen desorption device is provided on the cover plate and configured to consume oxygen in the air in the storage space when the drawer body is in the closed position. The cover plate has an installation opening; Furthermore, the electrolytic oxygen removal device also includes: The housing is fixed to the mounting port and has an accommodating cavity inside. A cathode membrane assembly is disposed in the accommodating cavity to divide the accommodating cavity into a liquid storage cavity for holding electrolyte and a ventilation cavity located below the liquid storage cavity. The ventilation cavity is connected to the storage space through an air inlet. The cathode membrane assembly is configured to consume oxygen in the air entering the ventilation cavity from the air inlet through an electrochemical reaction. An anode plate is disposed in the liquid storage chamber at a distance from the cathode membrane assembly, and is configured to provide reactants to the cathode membrane assembly and generate electrolysis products through an electrochemical reaction; The housing further includes an upper shell portion and a lower shell portion, the upper shell portion and the lower shell portion being engaged to define the accommodating cavity; and The air inlet is located on the peripheral wall of the lower shell below the cover plate, so that air in the storage space can enter the ventilation cavity; The lower shell is provided with a drain port to drain the accumulated liquid in the ventilation cavity.

2. The drawer assembly according to claim 1, characterized in that... An overlapping portion is formed on the outer periphery of the lower shell portion, which overlaps the edge of the mounting opening so that the bottom wall and part of the peripheral wall of the lower shell portion are below the cover plate.

3. The drawer assembly according to claim 2, characterized in that... The top of the upper shell is provided with a through hole; and the drawer assembly further includes: A cover is disposed on the through hole, and the cover has a replenishment port for replenishing the liquid storage chamber and an exhaust port for discharging the reactants generated by the anode plate.

4. The drawer assembly according to claim 2, characterized in that... When the overlapping part overlaps the edge of the mounting port, the bottom wall of the lower shell is in an inclined state, and the lower shell is provided with the drain port at the downstream of its inclined bottom wall.

5. The drawer assembly according to claim 2, characterized in that... The cathode film assembly further includes: A fixed frame is horizontally fixed inside the accommodating cavity, and an installation groove is provided on the inner side of the fixed frame along the circumferential direction. A cathode film assembly, the periphery of which is fixed in the mounting groove so that it is fixedly positioned in the center of the fixed frame.

6. The drawer assembly according to claim 5, characterized in that... The cathode membrane assembly further includes, from top to bottom, a catalytic layer, a first waterproof and breathable layer, a conductive layer, and a second waterproof and breathable layer; and The conductive layer has an extension that extends outward through the mounting groove and is electrically connected to the cathode contact plate to supply power to the cathode film assembly.

7. The drawer assembly according to claim 5, characterized in that... 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, which are matched one-to-one with the stepped positioning posts to fix the anode plate at intervals above the cathode film assembly.

8. The drawer assembly according to claim 1, characterized in that... Also includes: The cylinder has a forward-opening pull-out space, and the drawer body can be pulled out or retracted into the pull-out space; in The drawer assembly is also configured such that its cover plate serves as the top plate of the pull-out space.

9. A refrigerator, characterized in that... Includes the drawer assembly according to any one of claims 1 to 8.

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