WO2023124679A1

WO2023124679A1 - Refrigerator

Info

Publication number: WO2023124679A1
Application number: PCT/CN2022/134345
Authority: WO
Inventors: 苗建林; 李春阳
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: 2021-12-31
Filing date: 2022-11-25
Publication date: 2023-07-06
Also published as: CN217876647U

Abstract

A refrigerator, comprising: a liner internally provided with a storage compartment; and an electrolytic deoxidization device obliquely arranged at the bottom of the storage compartment and configured to consume oxygen in the storage compartment through an electrochemical reaction under the action of an electrolytic voltage. Since the electrolytic deoxidization device has the advantage of a small size, an excessive amount of space is not occupied, and the refrigerator can have an effective volume while having a hypoxemia fresh-keeping function. The electrolytic deoxidization device is obliquely mounted at the bottom of the storage compartment, such that the influence of mounting of the electrolytic deoxidization device on the appearance and the structure of the refrigerator in a transverse direction and a depth direction can be further avoided.

Description

refrigerator

technical field

The invention relates to fresh-keeping technology, in particular to a refrigerator.

Background technique

Hypoxic fresh-keeping is a fresh-keeping technology that has received wide attention, which can effectively extend the shelf life of fruits and vegetables and other ingredients and slow down the loss of nutrients. When the refrigerator is equipped with a deoxygenation device, a low-oxygen fresh-keeping atmosphere can be created in the storage space.

However, the inventor realizes that the oxygen removal device has a certain volume. For example, some devices even need to install equipment such as air pumps, which will take up too much volume. However, the internal space of the refrigerator is very limited. Therefore, when the oxygen removal device is installed, It will inevitably affect the effective volume of the refrigerator.

The above information disclosed in this background technology is only for enhancement of understanding of the background technology of the application, and therefore, it may include information that does not constitute the prior art that is already known to a person of ordinary skill in the art.

Contents of the invention

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

A further object of the present invention is to enable the refrigerator to have the function of keeping fresh in low oxygen while avoiding too much space occupied by the electrolytic deoxygenation device to ensure the effective volume of the refrigerator.

A further object of the present invention is to reduce or avoid damage to the electrolytic deoxygenation device during the process of taking and placing items by the user.

Another further object of the present invention is to reduce or avoid performance degradation of the electrolytic deoxygenation device due to inclined installation.

In particular, the present invention provides a refrigerator, comprising: an inner tank, which forms a storage compartment inside; and an electrolytic deoxygenation device, which is installed obliquely at the bottom of the storage compartment, and is used to pass through the storage compartment under the action of electrolysis voltage The electrochemical reaction consumes oxygen in the storage compartment.

Optionally, the refrigerator further includes: a storage container arranged in the storage compartment, and a return air gap is formed between the bottom wall of the storage compartment and the bottom wall of the storage compartment; an installation opening is opened on the bottom wall of the storage container ; The electrolytic oxygen removal device is arranged in the return air gap, and the installation port is closed, and is used for consuming the oxygen in the storage container through electrochemical reaction.

Optionally, a part of the bottom wall of the storage compartment is recessed downward to form a groove located in the return air gap and facing the installation port; the electrolytic deoxidizer is arranged at the groove.

Optionally, the refrigerator further includes: a limit assembly, which is arranged at the groove, and defines a card position for clamping and positioning the electrolytic deoxygenation device. Tilt settings at preset angles.

Optionally, the limiting assembly includes a first limiting rib and a second limiting rib extending upward from the bottom of the groove, and a third limiting rib extending downward from the rear end of the peripheral wall of the installation opening; Wherein, the first limiting rib is opposite to the third limiting rib, and the gap between it and the third limiting rib forms the first locking position; the second limiting rib is opposite to the front end of the peripheral wall of the installation port , and the gap between it and the front end of the peripheral wall of the installation port forms a second clamping position; and the rear part of the electrolytic deoxygenation device is clamped to the first clamping position, and the front part of the electrolytic deoxygenation device is clamped to the second clamping position.

Optionally, the electrolytic oxygen removal device includes: a housing in the shape of a flat cuboid, and an opening facing the installation port is opened on its wider side; a cathode plate is arranged at the opening to jointly define a The liquid storage chamber containing the electrolyte is used to consume the oxygen in the storage container through electrochemical reaction; and the anode plate is arranged in the liquid storage chamber and is used to provide reactants to the negative plate through electrochemical reaction.

Optionally, the wider side is the top surface of the housing; and the distance between the front end of the opening and the front end of the top surface of the housing is greater than a preset threshold, so that the cathode can be activated when the duration of the electrochemical reaction is within a preset range. The board is immersed in the electrolyte solution.

Optionally, a liquid replenishment port is opened on the front side of the casing, which is used to allow liquid to flow into the liquid storage chamber through it to replenish liquid to the liquid storage chamber; , used to exhaust the oxygen generated during the electrochemical reaction of the anode plate.

Optionally, the storage container is a drawer, which has a cylinder body and a drawer body that can be pulled back and forth on the cylinder body; and there is an airflow channel for airflow to pass between the inner wall of the cylinder body and the peripheral wall of the drawer body; the installation port set on the barrel.

Optionally, the refrigerator further includes: a fan, arranged on the inner wall of the cylinder and located in the airflow channel, for promoting the formation of airflow flowing through or towards the installation opening.

The refrigerator of the present invention utilizes the electrolytic deoxygenation device to consume the oxygen in the storage compartment. Since the electrolytic deoxygenation device has the advantage of being small in size, it does not take up too much space. effective volume. By arranging the electrolytic deoxygenation device obliquely at the bottom of the storage compartment, it is possible to further avoid the influence of the installation of the electrolytic deoxygenation device on the appearance and structure of the refrigerator in the transverse direction and in the depth direction.

Further, in the refrigerator of the present invention, since the electrolytic deoxygenation device can be arranged in the return air gap between the bottom wall of the storage compartment and the bottom wall of the storage container, the electrolytic deoxygenation device will not interfere with the inside of the storage container. Therefore, based on the solution of the present invention, the process of taking and placing items by the user will not cause damage to the electrolytic deoxygenation device, which is conducive to improving the convenience and reliability of the refrigerator in use.

Furthermore, in the refrigerator of the present invention, since the electrolytic deoxidizer is installed obliquely, an opening is set on the top surface of the housing of the electrolytic deoxygenator, and the distance between the front end of the opening and the front end of the top surface of the housing is set as greater than the preset threshold, the cathode plate can always be immersed in the electrolyte when the duration of the electrochemical reaction is within the preset range. weakened.

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 structural diagram of a refrigerator according to an embodiment of the present invention;

2 is a schematic side view of a refrigerator according to an embodiment of the present invention;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

Fig. 4 is another partial enlarged view of place A in Fig. 2, in which the electrolytic deoxygenation device is hidden;

Fig. 5 is a schematic structural diagram of an electrolytic deoxygenation device of a refrigerator according to an embodiment of the present invention;

Fig. 6 is a schematic exploded view of the electrolytic deoxidizer of the refrigerator shown in Fig. 5 .

Detailed ways

FIG. 1 is a schematic structural diagram of a refrigerator 10 according to an embodiment of the present invention. Fig. 2 is a schematic side view of a refrigerator 10 according to an embodiment of the present invention. In order to better show the internal structure of the refrigerator 10, Fig. 2 is drawn in the form of a perspective view.

The refrigerator 10 may generally include an inner container 110 and an electrolytic deoxygenation device 200 . The liner 110 is an integral part of the box body 100 of the refrigerator 10 , for example, can form the box body 100 together with the box shell 120 . The interior of the liner 110 forms a storage compartment 112 . There may be one or more storage compartments 112 . The electrolytic deoxygenation device 200 can be selectively disposed in a storage compartment 112, such as a refrigerator compartment, a freezer compartment or a variable temperature compartment, which is not limited thereto.

The electrolytic deoxygenation device 200 is installed obliquely at the bottom of the storage compartment 112, and is used to consume the oxygen in the storage compartment 112 by carrying out an electrochemical reaction under the action of the electrolysis voltage. For example, the electrolytic deoxygenation device 200 may include a cathode electrode and an anode electrode, and by electrifying the cathode electrode and the anode electrode, electrochemical reactions may respectively occur on the two electrodes. The type of electrochemical reaction can be selected arbitrarily, as long as the reactant of a certain electrode is oxygen. For example, the electrochemical reaction at the cathode electrode may be a reduction reaction, and the electrochemical reaction at the anode electrode may be an oxidation reaction.

The refrigerator 10 of this embodiment utilizes the electrolytic deoxygenation device 200 to consume the oxygen in the storage compartment 112. Since the electrolytic deoxygenation device 200 has the advantage of being small in size, it does not take up too much space. function while ensuring the effective volume of the refrigerator 10. By arranging the electrolytic deoxygenation device 200 obliquely at the bottom of the storage compartment 112 , the installation of the electrolytic deoxygenation device 200 can be further prevented from affecting the appearance and structure of the refrigerator 10 in the lateral direction and in the depth direction.

Installing the electrolytic deoxygenation device 200 at the bottom of the storage compartment 112 can make full use of the space at the bottom of the compartment. At the bottom of the storage compartment 112, it can reduce space occupation and ensure effective volume. By being inclined, the electrolytic oxygen removal device 200 can be extended in a narrow installation space, so as to ensure that the electrochemical elements (such as the cathode electrode and the anode electrode) have an appropriate active area, thereby ensuring considerable oxygen removal efficiency.

In some optional embodiments, the refrigerator 10 may further include a storage container 300 disposed in the storage compartment 112 , and the bottom wall of the storage container 300 and the bottom wall of the storage compartment 112 form a There is a return air gap 114. The return air gap 114 can allow the return air flowing through the storage compartment 112 to pass through. A bottom wall of the storage container 300 defines an installation opening 312 . The installation port 312 serves as a communication port between the electrolytic deoxygenation device 200 and the inner space of the storage container 300 .

The electrolytic deoxygenation device 200 is disposed in the return air gap 114 and closes the installation opening 312 , and is used for consuming oxygen in the storage container 300 through an electrochemical reaction. For example, the cathode electrode of the electrolytic deoxygenation device 200 can be covered or clamped on the periphery of the installation opening 312 , so as to close the installation opening 312 while using the oxygen in the storage container 300 as a reactant to perform an electrochemical reaction.

Since the electrolytic deoxygenation device 200 can be arranged in the return air gap 114 between the bottom wall of the storage compartment 112 and the bottom wall of the storage container 300, the electrolytic deoxygenation device 200 will not be directly connected to the inner space of the storage container 300. Therefore, based on the solution of this embodiment, the process of taking and placing items by the user will not cause damage to the electrolytic deoxygenation device 200 , which is conducive to improving the convenience and reliability of the refrigerator 10 during use. In some embodiments, the side of the installation port 312 facing the storage container 300 can be provided with a partition net, which has air permeability and has a spacer function, which can prevent items from falling on the side of the electrolytic deoxygenation device 200. on the cathode electrode.

By setting the electrolytic deoxygenation device 200 in the return air gap 114, since the return air flow can flow through the electrolytic deoxygenation device 200 and take away part of the heat of the electrolytic deoxygenation device 200, therefore, it is possible to reduce or avoid the exhaustion of the electrolytic deoxidation device 200. And its surrounding parts cause safety accidents due to overheating.

FIG. 3 is a partial enlarged view of A in FIG. 2 ; FIG. 4 is another partial enlarged view of A in FIG. 2 . Compared with FIG. 3 , the electrolytic deoxidizer 200 is hidden in FIG. 4 .

In some optional embodiments, a portion of the bottom wall of the storage compartment 112 is recessed downward to form a groove 114 a located in the return air gap 114 and facing the installation opening 312 . And the electrolytic deoxidizer 200 is disposed at the groove 114a. That is to say, the bottom wall of the storage compartment 112 is deformed to form a groove 114 a, and the groove 114 a can provide sufficient installation space for the electrolytic deoxygenation device 200 . For example, by improving the molding process of the inner container 110, the groove 114a and the storage compartment 112 can be molded in one step.

By adopting the above structure, the refrigerator 10 can provide another space for the installation of the electrolytic deoxygenation device 200 , the structure is compact, and the effective volume and aesthetic appearance of the refrigerator 10 will hardly be adversely affected.

In some optional embodiments, the refrigerator 10 may further include a limiting component, which is arranged at the groove 114a, and defines a locking position for locking and positioning the electrolytic deoxygenation device 200, and the locking position enables the electrolytic deoxygenation device 200 The device 200 is installed obliquely at a preset angle to the horizontal plane while closing the installation opening 312 . Wherein, the locking position refers to the positioning space of the electrolytic deoxygenation device 200 . When the electrolytic deoxygenation device 200 is clamped and positioned at the position defined by the limiting component, the installation opening 312 is just closed and inclined at a preset angle with respect to the horizontal plane. Wherein, the preset angle is any value within the range of 0-45°, such as 15° or 30°.

Using the limit component to position the electrolytic deoxygenation device 200 has a simple method and a simple structure, and can ensure the positioning accuracy of the electrolytic deoxygenation device 200 and prevent problems such as poor sealing of the installation port 312 .

In some further embodiments, the limiting component includes a first limiting rib 410 and a second limiting rib 420 extending upward from the groove bottom of the groove 114a, and extending downward from the rear end of the peripheral wall of the installation opening 312 The third limiting rib 430. Each limiting rib can be plate-shaped, and the plate surface is respectively extended along the transverse direction of the box body 100 .

The card slots defined by the limiting component may include a first card slot 401 and a second card slot 402 . Each clamping position serves as a positioning space for clamping and positioning a part of the electrolytic deoxygenation device 200 . The first limiting rib 410 is opposite to the third limiting rib 430 , and the gap between the first limiting rib 410 and the third limiting rib 430 forms the first locking position 401 . The second limiting rib 420 is opposite to the front end of the peripheral wall of the installation opening 312, and the gap between it and the front end of the peripheral wall of the installation opening 312 forms the second locking position 402. In this embodiment, the first limiting rib 410 is lower than the second limiting rib 420 , which makes the electrolytic deoxygenation device 200 inclined downward from front to back.

The rear part of the electrolytic deoxygenation device 200 is clamped to the first clamping position 401 , and the front part of the electrolytic deoxygenation device 200 is clamped to the second clamping position 402 . The front part and the rear part of the electrolytic deoxygenation device 200 are respectively positioned by using two clamping positions, which is beneficial to improving the stability of the assembly structure between the electrolytic deoxygenation device 200 and the limiting assembly.

Among them, terms such as "front", "rear", "horizontal", "upper" and "lower" indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, rather than indicating or implying the The described devices or elements must have a certain orientation, be constructed and operate in a certain orientation, and therefore should not be construed as limiting the invention.

Of course, in some other optional embodiments, other installation methods can also be selected to fix the electrolytic deoxygenation device 200 , as long as it can be installed obliquely at the groove 114 a and close the installation opening 312 .

Fig. 5 is a schematic structural diagram of the electrolytic deoxygenation device 200 of the refrigerator 10 according to an embodiment of the present invention, and Fig. 6 is a schematic exploded view of the electrolytic deoxygenation device 200 of the refrigerator 10 shown in Fig. 5 .

In some optional embodiments, the electrolytic deoxygenation device 200 includes a casing 210 , a cathode plate 220 and an anode plate 230 . Wherein, the housing 210 is in the shape of a flat cuboid, and an opening 211 facing the installation opening 312 is opened on a wider side thereof.

The cathode plate 220 is used as the cathode electrode of the electrolytic deoxygenation device 200 for reducing oxygen. The cathode plate 220 is disposed at the opening 211 to define together with the casing 210 a liquid storage chamber 214 for containing the electrolyte, and is used for consuming oxygen in the storage container 300 through an electrochemical reaction. For example, oxygen in the air can undergo a reduction reaction at the cathode plate 220 , namely: O ₂ +2H ₂ O+4e ⁻ →4OH ⁻ .

The anode plate 230 serves as the anode electrode of the electrolytic deoxidizer 200 for oxidation reaction. The anode plate 230 is disposed in the liquid storage chamber 214 and used to provide reactants, such as electrons, to the cathode plate 220 through an electrochemical reaction. The OH- generated by the cathode plate 220 can undergo an oxidation reaction at the anode plate 230 to generate oxygen, namely: 4OH ⁻ →O ₂ +2H ₂ O+4e ⁻ . Oxygen may be exhausted through an exhaust port 218 on housing 210 .

The wider side of the housing 210 is the top surface of the housing 210 . The distance between the front end of the opening 211 and the front end of the top surface of the casing 210 is greater than a predetermined threshold, so that the cathode plate 220 is immersed in the electrolyte when the duration of the electrochemical reaction is within a predetermined range. Wherein, the duration of the electrochemical reaction refers to the cumulative duration of the electrochemical reaction obtained by counting when the liquid storage chamber 214 is filled with the electrolyte as the initial state. As the electrochemical reaction proceeds, the electrolyte solution in the liquid storage chamber 214 will continue to decrease. When the electrolyte solution decreases to a certain extent, the cathode plate 220 may partly break away from the electrolyte solution or even completely break away from the electrolyte solution, which will lead to The electrochemical reaction cannot be carried out normally, and will cause air leakage in the cathode plate 220 , and then lead to failure of the electrolytic deoxygenation device 200 .

Based on the above structure, since the electrolytic deoxygenation device 200 is installed obliquely, an opening 211 is opened on the top surface of the housing 210 of the electrolytic deoxygenation device 200, and the distance between the front end of the opening 211 and the front end of the top surface of the housing 210 is set In order to be greater than the preset threshold, the cathode plate 220 can always be immersed in the electrolyte solution when the duration of the electrochemical reaction is within the preset range. setting can lead to performance degradation. The preset range can be set according to the maximum working time of the electrolytic deoxygenation device 200 for deoxygenating the storage space, for example, it can be a multiple of the maximum working time.

In some optional embodiments, a liquid replenishment port 216 is opened on the front side of the housing 210 for allowing liquid to flow into the liquid storage chamber 214 through the liquid replenishment port 214 to replenish the liquid storage chamber 214 . For example, a liquid replenishment tube may be connected to the liquid replenishment port 216 , which extends forward so as to facilitate the user to perform liquid replenishment operations. In some further embodiments, the refrigerator 10 may also include a liquid level sensor disposed in the liquid storage chamber 214 for detecting the liquid level in the liquid storage chamber 214, and the refrigerator 10 is configured such that the liquid level in the liquid storage chamber 214 An alert signal is issued below a preset threshold to instruct the user to refill.

Of course, in some other embodiments, the refrigerator 10 may further include a liquid replenishment container for replenishing liquid to the liquid storage chamber 214 , and the refrigerator 10 may automatically replenish liquid to the liquid storage chamber 214 by using the liquid replenishment container. For example, the liquid replenishment container can communicate with the liquid replenishment port 216, and the liquid replenishment port 216 is provided with a solenoid valve for opening and closing the liquid replenishment port 216. When the liquid level in the liquid storage chamber 214 is lower than a preset threshold value, the solenoid valve can be controlled. The liquid replenishment port 216 is opened to allow the liquid in the liquid replenishment container to flow into the liquid storage cavity 214 .

An exhaust port 218 is also provided on the front side of the housing 210 , which is spaced apart from the liquid replenishment port 216 , and is used for exhausting the oxygen generated during the electrochemical reaction of the anode plate 230 . The exhausted oxygen may follow the return air flow, or may be guided to the outside of the refrigerator 10 by the exhaust pipe 260 .

In some optional embodiments, the storage container 300 is a drawer, which has a cylinder body 310 and a drawer body 320 disposed on the cylinder body 310 so as to be able to be pulled back and forth. In addition, there is an airflow channel 301 between the inner wall of the cylinder body 310 and the peripheral wall of the drawer body 320 for the airflow to pass through. The installation port 312 is defined on the cylinder body 310 . In this way, the air in the drawer body 320 can flow through the airflow channel 301 and flow to the installation opening 312 , so as to participate in the electrochemical reaction as a reactant of the cathode plate 220 .

In some further embodiments, the refrigerator 10 further includes a blower 500 disposed on the inner wall of the cylinder body 310 and located in the airflow channel 301 for promoting the formation of airflow flowing through or toward the installation opening 312 . Under the action of the fan 500, the air in the storage container 300 is stirred rapidly, and flows through the airflow channel 301 or flows to the installation port 312 (the flow direction of the airflow is shown in FIG. Oxygen efficiency, and ensure the gas uniformity in the storage container 300. The fan 500 is used to promote the formation of the internal circulating airflow in the storage container 300, and its type can be selected arbitrarily according to actual needs, for example, it can be a miniature centrifugal fan 500 or a miniature axial fan 500, etc.

In some embodiments, the refrigerator 10 may also have an installation cavity 118 located at the rear of the storage compartment 112 , and an air supply port 116 and an air return port 117 are communicated between the installation cavity 118 and the storage compartment 112 . Furthermore, an evaporator 600 and a blower fan 700 may be disposed in the installation cavity 118 , wherein the evaporator 600 is used for exchanging heat with the air flow passing through it. The blower fan 700 is used to promote the formation of an airflow cycle that flows through the evaporator 600, the air supply port 116, the storage compartment 112, the air return port 117 and the evaporator 600 in sequence, thereby providing the heat exchange airflow to the storage compartment 112 to adjust The temperature and air flow direction of the storage compartment 112 are shown in FIG. 2 .

In some embodiments, the electrolytic deoxygenation device 200 may further include a partition 240 and a fixing component 250 .

The separator 240 is disposed in the liquid storage chamber 214 and between the cathode plate 220 and the anode plate 230 for separating the cathode plate 220 from the anode plate 230 and preventing the electrolytic deoxidizer 200 from short circuiting. Specifically, a plurality of protrusions 242 are formed on the side of the separator 240 facing the anode plate 230, the protrusions 242 are in contact with the anode plate 230, and the cathode plate 220 is attached to a side of the separator 240 away from the protrusions 242. side, so as to form a preset gap between the cathode plate 220 and the anode plate 230 , thereby separating the cathode plate 220 from the anode plate 230 .

The fixing component 250 may be disposed on the outside of the cathode plate 220 and configured to fix the cathode plate 220 at the side opening 211 of the casing 210 . Specifically, the fixing assembly 250 may further include a metal frame 252 and a support 254 .

The metal frame 252 is attached to the outside of the cathode plate 220 . The metal frame 252 is in direct contact with the cathode plate 220 and can act to press the cathode plate 220, and the metal frame 252 can also be provided with a cathode power supply terminal 252b of the cathode plate 220 to be connected to an external power source. An anode power supply terminal 232 may be provided on the anode plate 230 to be connected to an external power source.

The supporting member 254 is formed with an insertion slot. When the surrounding portion 252aa of the metal frame 252 enters the insertion slot of the support member 254 , the metal frame 252 can be fixed and positioned by the support member 254 , so that the metal frame 252 presses the cathode plate 220 .

The refrigerator 10 of the above embodiment uses the electrolytic deoxygenation device 200 to consume the oxygen in the storage compartment 112. Since the electrolytic deoxygenation device 200 has the advantage of being small in size, it does not take up too much space. function while ensuring the effective volume of the refrigerator 10. By arranging the electrolytic deoxygenation device 200 obliquely at the bottom of the storage compartment 112 , it is possible to further avoid the influence of the installation of the electrolytic deoxygenation device 200 on the appearance and structure of the refrigerator 10 in the transverse direction and in the depth direction.

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 liner, the interior of which forms a storage compartment; and

The electrolytic deoxygenation device is installed obliquely at the bottom of the storage compartment, and is used for consuming oxygen in the storage compartment through an electrochemical reaction under the action of electrolysis voltage.
The refrigerator according to claim 1, further comprising:

The storage container is arranged in the storage compartment, and a return air gap is formed between the bottom wall of the storage compartment and the bottom wall of the storage compartment; an installation opening is opened on the bottom wall of the storage container;

The electrolytic deoxygenation device is arranged in the return air gap, closes the installation opening, and is used for consuming oxygen in the storage container through electrochemical reaction.
The refrigerator according to claim 2, wherein,

A part of the bottom wall of the storage compartment is recessed downward to form a groove located in the return air gap and facing the installation opening; the electro-deoxidizer is arranged at the groove.
The refrigerator according to claim 3, further comprising:

The limit assembly is arranged at the groove, and defines a card position for clamping and positioning the electro-deoxygenator, and the card position enables the electro-deoxygenator to be connected with the installation port while closing the installation port. The horizontal plane is set obliquely at a predetermined angle.
The refrigerator according to claim 4, wherein,

The limiting assembly includes a first limiting rib and a second limiting rib extending upward from the groove bottom of the groove, and a third limiting rib extending downward from the rear end of the peripheral wall of the installation opening. edge; among them,

The first limiting rib is opposite to the third limiting rib, and the gap between it and the third limiting rib forms a first locking position; the second limiting rib and The front end of the surrounding wall of the installation port is opposite, and the gap between it and the front end of the surrounding wall of the installation port forms a second locking position; and

The rear part of the electrolytic deoxygenation device is clamped to the first clamping position, and the front part of the electrolytic deoxygenation device is clamped to the second clamping position.
The refrigerator according to claim 2, wherein,

The electrolytic oxygen removal device includes:

The housing is in the shape of a flat cuboid, and its wider side is provided with an opening facing the installation port;

a cathode plate, disposed at the opening, to define together with the casing a liquid storage chamber for containing electrolyte, and to consume oxygen in the storage container through an electrochemical reaction; and

The anode plate is arranged in the liquid storage chamber and is used to provide reactants to the cathode plate through an electrochemical reaction.
The refrigerator according to claim 6, wherein,

The wider side is the top surface of the housing; and the distance between the front end of the opening and the front end of the top surface of the housing is greater than a preset threshold, so that the duration of the electrochemical reaction is within a preset range When inside, the cathode plate is immersed in the electrolyte solution.
The refrigerator according to claim 6, wherein,

A liquid replenishment port is opened on the front side of the housing for allowing liquid to flow into the liquid storage chamber through it to replenish liquid to the liquid storage chamber; and

An exhaust port is also opened on the front side of the casing, which is spaced apart from the liquid replenishment port, and is used to discharge the oxygen generated during the electrochemical reaction of the anode plate.
The refrigerator according to claim 2, wherein,

The storage container is a drawer, which has a cylindrical body and a drawer body that can be pulled back and forth on the cylindrical body; channel; the installation port is opened on the cylinder.
The refrigerator according to claim 9, further comprising:

The blower is arranged on the inner wall of the barrel and is located in the airflow channel, and is used to promote the formation of airflow flowing through or towards the installation opening.