Gas treatment device and refrigerator with same

Abstract

The utility model provides a gas processing device and a refrigerator with the same, the gas processing device comprises a reaction chamber, a liquid storage part and an electrode group, the liquid storage part is provided with a liquid storage chamber, the electrode group comprises a first electrode and a second electrode which are exposed in the reaction chamber, the gas processing device further comprises a communicating part, and the communicating part is communicated with the liquid storage chamber. The communication part is used for communicating the reaction chamber with the liquid storage chamber, so that the liquid level in the reaction chamber and the liquid level in the liquid storage chamber are positioned on the same horizontal plane; after the electrolyte is stored in the liquid storage chamber and the reaction chamber and the liquid storage chamber are communicated through the communication part, pressure balance can be achieved between the reaction chamber and the liquid storage chamber, so that the liquid level in the reaction chamber and the liquid level in the liquid storage chamber are located on the same horizontal plane, and the electrolyte stored in the liquid storage chamber is supplemented to the reaction chamber; therefore, the electrolyte does not need to be frequently added into the reaction chamber, and the frequency of directly adding the electrolyte into the reaction chamber is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration device field especially relates to a gas treatment device and refrigerator with it. BACKGROUND

[0002] Modified atmosphere packaging, which achieves the purpose of preservation by adjusting the proportion of gas (such as oxygen) in the preservation space. In order to achieve the purpose of modified atmosphere packaging, the refrigerator usually needs to install a gas treatment device, and use the gas treatment device to process a specific gas component, so as to increase or decrease the content of the specific gas component.

[0003] However, when the gas treatment device uses electrolytic voltage to carry out electrochemical reaction, electrolyte loss will be generated, which requires frequent addition of electrolyte to the reaction chamber, resulting in a high frequency of direct addition of electrolyte to the reaction chamber. SUMMARY

[0004] The utility model discloses a gas treatment device and refrigerator with it, which reduces the frequency of direct addition of electrolyte to the reaction chamber.

[0005] To achieve one of the above utility model purposes, an embodiment of the utility model provides a gas treatment device, comprising:

[0006] A reaction chamber;

[0007] A liquid storage part having a liquid storage chamber;

[0008] An electrode group comprising a first electrode and a second electrode exposed to the reaction chamber;

[0009] The gas treatment device further comprises a communication part, which connects the reaction chamber and the liquid storage chamber, so that the liquid level in the reaction chamber and the liquid level in the liquid storage chamber are at the same level.

[0010] As a further improvement of the embodiment of the utility model, the gas treatment device further comprises a mounting part connected to the electrode group, the first electrode forms at least part of the outer wall of the mounting part, and the mounting part and the first electrode together form the reaction chamber.

[0011] As a further improvement of the embodiment of the utility model, the mounting part and the liquid storage part are separately arranged.

[0012] As a further improvement of the embodiment of the utility model, the mounting part and the liquid storage part are integrally formed.

[0013] As a further improvement of the embodiment of the utility model, the mounting part and the liquid storage part are connected to each other, abut each other or are arranged at intervals.

[0014] As a further improvement of one embodiment of the present application, the gas treatment device further comprises a liquid level sensor exposed in the liquid storage chamber, and the liquid level sensor is connected to the mounting portion and / or the liquid storage portion.

[0015] As a further improvement of one embodiment of the present application, the first electrode and the second electrode both extend along a vertical direction, and the first electrode and the second electrode are arranged along a horizontal direction.

[0016] As a further improvement of one embodiment of the present application, the first electrode and the second electrode both extend along a horizontal direction, and the first electrode and the second electrode are arranged along a vertical direction.

[0017] As a further improvement of one embodiment of the present application, the second electrode is located above the first electrode, and the second electrode is provided with gas permeable holes.

[0018] As a further improvement of one embodiment of the present application, the mounting portion is provided with a gas outlet exposing the reaction chamber and a liquid inlet communicating with the reaction chamber, the liquid storage portion is provided with a liquid supplementing port exposing the liquid storage chamber and a liquid outlet communicating with the liquid storage chamber, the liquid inlet is butted against the communication portion and located at the bottom of the mounting portion, and the liquid outlet is butted against the communication portion and located at the bottom of the liquid storage portion.

[0019] As a further improvement of one embodiment of the present application, the gas treatment device further comprises a valve arranged in the communication portion, and the valve selectively communicates or disconnects the reaction chamber and the liquid storage chamber.

[0020] As a further improvement of one embodiment of the present application, the communication portion is configured as a hose and is sealedly butted against the mounting portion and the liquid storage portion.

[0021] As a further improvement of one embodiment of the present application, the mounting portion is provided with a mounting opening communicating with the reaction chamber and matched with the first electrode, and the first electrode is sealingly arranged in the mounting opening.

[0022] As a further improvement of one embodiment of the present application, the first electrode is configured to consume oxygen by electrochemical reaction, and the second electrode is configured to provide a reactant to the first electrode and generate oxygen by electrochemical reaction.

[0023] To achieve one of the purposes of the present application, the present application further provides a refrigerator, which comprises the gas treatment device as described above.

[0024] Compared with the prior art, in the embodiment of the utility model, after the electrolyte is stored in the liquid storage chamber, when the communication part connects the reaction chamber and the liquid storage chamber, pressure balance can be achieved between the reaction chamber and the liquid storage chamber, so that the liquid level in the reaction chamber and the liquid level in the liquid storage chamber are at the same level, thereby the electrolyte stored in the liquid storage chamber is supplemented to the reaction chamber, and then the electrolyte does not need to be frequently added to the reaction chamber, thereby reducing the frequency of directly adding the electrolyte to the reaction chamber. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the cross-sectional schematic view of the refrigerator in the utility model;

[0026] Figure 2 is the three-dimensional schematic view of the gas treatment device in the preferred embodiment of the utility model;

[0027] Figure 3 is Figure 2 the cross-sectional view of A-A in the utility model;

[0028] Figure 4 is Figure 2 the cross-sectional view of B-B in the utility model;

[0029] Figure 5 is Figure 2 the three-dimensional schematic view of the mounting part one preferred embodiment in the utility model;

[0030] Figure 6 is Figure 5 the exploded schematic view of the utility model;

[0031] Figure 7 is Figure 5 the cross-sectional view of C-C in the utility model;

[0032] Figure 8 is Figure 5 the cross-sectional view of another preferred embodiment of the mounting part in the utility model at C-C. DETAILED DESCRIPTION

[0033] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments do not limit the utility model, and the structural, method or functional changes made by the ordinary skilled in the art according to these embodiments are all included in the protection scope of the utility model.

[0034] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0035] In each figure of the utility model, in order to facilitate the illustration, the size of some structures or parts may be exaggerated relative to other structures or parts, therefore, only used for illustrating the basic structure of the subject of the utility model.

[0036] The refrigerator provided by the preferred embodiment of the utility model adjusts the proportion of specific gas (for example, oxygen) in the fresh-keeping space by being equipped with a gas treatment device, so as to meet different fresh-keeping requirements, such as low-temperature low-oxygen or low-temperature high-oxygen fresh-keeping requirements.

[0037] Reference Figure 1 As shown in the figure, specifically, a refrigerator comprises a cabinet 60, a door body 70 and a gas treatment device, and the door body 70 is connected to the cabinet 60. In this embodiment, the cabinet 60 has a refrigeration chamber 601, and the door body 70 is pivotally connected to the cabinet 60 for opening or closing the refrigeration chamber 601. The refrigerator further comprises a refrigeration system for providing cold quantity for the refrigeration chamber, and the refrigeration system comprises a compressor, a condenser, an evaporator and the like connected by pipelines. When the fresh-keeping space is in the refrigeration chamber 601, the cold quantity can be obtained by heat exchange with the refrigeration chamber 601 to achieve cooling.

[0038] Specifically, in combination with reference to Figures 1 to 7 As shown in the figure, the gas treatment device provided by the preferred embodiment of the utility model comprises a reaction chamber 101, a liquid storage part 20 and an electrode group 30. In this embodiment, the reaction chamber 101 can contain alkaline electrolyte, such as 0.1-8 mol / L NaOH or KOH, and the concentration can be adjusted according to actual needs. The electrode group 30 is powered by a power supply and connected to the positive and negative electrodes of the power supply, can consume or increase the composition of specific gas (for example, oxygen) in the gas treatment device by means of electrochemical reaction, and adjust the proportion of specific gas in the fresh-keeping space by using the airflow communication between the gas treatment device and the fresh-keeping space.

[0039] Specifically, the liquid storage part 20 has a liquid storage chamber 201. In this embodiment, the liquid storage chamber 201 can contain and store electrolyte, and when the electrolyte in the reaction chamber 101 is consumed, the liquid storage part 20 can supplement the electrolyte to the reaction chamber 101, avoiding the user directly and frequently supplementing the electrolyte to the reaction chamber 101.

[0040] Specifically, the electrode group 30 comprises a first electrode 301 and a second electrode 302 exposed in the reaction chamber 101. In this embodiment, the electrode group 30 is connected to the positive and negative electrodes of the power supply by the first electrode 301 and the second electrode 302 respectively, and the first electrode 301 and the second electrode 302 are both in contact with the electrolyte in the reaction chamber 10, so as to meet the requirement of electrochemical reaction.

[0041] Further, the gas treatment device further comprises a communication part 40. In this embodiment, the communication part 40 can be selectively opened or closed, so as to selectively connect the liquid storage chamber 201 and the reaction chamber 101, and realize the liquid storage part 20 supplementing the electrolyte to the reaction chamber 101.

[0042] The communication part 40 is always connected between the storage chamber 201 and the reaction chamber 101, so that no additional valve is needed, the structure of the gas treatment device is simplified, and the liquid supplementing operation is simplified, thereby reducing the cost.

[0043] Further, the communication part 40 connects the reaction chamber 101 and the storage chamber 201, so that the liquid level in the reaction chamber 101 and the liquid level in the storage chamber 201 are at the same level. In the embodiment, since the storage chamber 201 and the reaction chamber 101 are in the same external environment (i.e., have the same atmospheric pressure), a communication vessel is formed between the storage chamber 201 and the reaction chamber 101. When the communication part 40 connects the reaction chamber 101 and the storage chamber 201, the liquid level in the storage chamber 201 and the liquid level in the reaction chamber 101 are always kept at the same level by the principle of the communication vessel. The water in the storage chamber 201 can automatically flow into the reaction chamber 101, so that the reaction chamber 101 can automatically maintain the required working liquid level (e.g., to ensure that the first electrode 301 and the second electrode 302 are both immersed below the liquid level of the electrolyte), thereby simplifying the liquid supplementing process.

[0044] Further, after the storage chamber 201 and the reaction chamber 101 are connected by the communication vessel, the storage chamber 201 can automatically supplement the reaction chamber 101 without the need for an additional liquid pump, thereby simplifying the structure of the gas treatment device and the operation mode of the liquid supplementing from the storage chamber 201 to the reaction chamber 101. In addition, the liquid level in the reaction chamber 101 can be determined by observing or detecting the liquid level in the storage chamber 201, thereby achieving more liquid level detection modes.

[0045] After the electrolyte is stored in the storage chamber 201, when the communication part 40 connects the reaction chamber 101 and the storage chamber 201, pressure balance can be achieved between the reaction chamber 101 and the storage chamber 201, so that the liquid level in the reaction chamber 101 and the liquid level in the storage chamber 201 are at the same level. Thus, the electrolyte stored in the storage chamber 201 can be supplemented to the reaction chamber 101, and the electrolyte in the reaction chamber 101 does not need to be frequently added, thereby reducing the frequency of adding electrolyte to the reaction chamber 101.

[0046] In addition, when the communication part 40 connects the reaction chamber 101 and the storage chamber 201, the liquid level in the reaction chamber 101 and the liquid level in the storage chamber 201 are always at the same level. At this time, when the liquid level in the reaction chamber 101 and the liquid level in the storage chamber 201 are low and need to be supplemented, the liquid in the reaction chamber 101 and / or the liquid in the storage chamber 201 can be supplemented, so that the two chambers can be simultaneously supplemented. The liquid supplementing mode can be selected, thereby meeting different liquid supplementing requirements.

[0047] Specifically, the gas treatment device further comprises a mounting part 10 connected to the electrode group 30. In the embodiment, the electrode group 30 (i.e., the first electrode 301 and the second electrode 302) is fixed to the mounting part 10.

[0048] Further, the first electrode 301 forms at least part of the outer wall of the mounting portion 10. In the embodiment, one side of the first electrode 301 is exposed in the reaction chamber 101, so as to be in contact with the electrolyte in the reaction chamber 101. The opposite side of the first electrode 301 forms at least part of the outer wall of the mounting portion 10, so as to be in contact with the specific gas outside the gas treatment device (e.g. in the fresh-keeping space).

[0049] For example, the gas treatment device is directly placed in the fresh-keeping space, so that the first electrode 301 is exposed in the fresh-keeping space, so as to be in contact with the specific gas in the fresh-keeping space. A waterproof and breathable film is arranged on the first electrode 301, so that the specific gas outside the gas treatment device can pass through the waterproof and breathable film to mix with the electrolyte, and the electrolyte cannot pass through the waterproof and breathable film, so as to avoid the electrolyte from leaking out of the reaction chamber 101.

[0050] Specifically, the first electrode 301 cooperates with the mounting portion 10 to form the reaction chamber 101. In the embodiment, the first electrode 301 is sealingly connected to the mounting portion 10, so as to form the reaction chamber 101 together with the mounting portion 10, so as to avoid liquid leakage at the connection between the mounting portion 10 and the first electrode 301.

[0051] Further, the mounting portion 10 and the liquid storage portion 20 are separately arranged. In the embodiment, compared with the solution that the mounting portion 10 and the liquid storage portion 20 are integrally formed, the separate arrangement of the mounting portion 10 and the liquid storage portion 20 is beneficial to the maintenance and repair of the gas treatment device.

[0052] For example, the mounting portion 10 and the liquid storage portion 20 can be integrally connected to the box body 60 or the door body 70, i.e. the mounting portion 10 and the liquid storage portion 20 are fixed to each other and then integrally mounted to the box body 60 or the door body 70. Alternatively, the mounting portion 10 and the liquid storage portion 20 are mounted in sequence, e.g. the mounting portion 10 is first fixed to the box body 60 or the door body 70, and then the liquid storage portion 20 is fixed to the mounting portion 10, the box body 60 or the door body 70, so that the liquid storage portion 20 can be separately dismounted and refilled.

[0053] In another embodiment not shown, the mounting portion 10 and the liquid storage portion 20 are integrally formed. In the embodiment, the mounting portion 10 and the liquid storage portion 20 are integrated by integrally forming, so that the mounting step between the mounting portion 10 and the liquid storage portion 20 is omitted, the degree of integration of the gas treatment device is improved, and the manufacturing cost of the gas treatment device is saved.

[0054] Preferably, the mounting portion 10, the liquid storage portion 20 and the communication portion 40 are integrally formed, so as to further improve the degree of integration of the gas treatment device and reduce the volume of the gas treatment device.

[0055] Specifically, the mounting portion 10 and the liquid storage portion 20 are connected to each other, abut against each other, or are spaced apart from each other. In the embodiment, the mounting portion 10 and the liquid storage portion 20 are separately provided, which includes the case that the mounting portion 10 and the liquid storage portion 20 are connected to each other, for example, the mounting portion 10 and the liquid storage portion 20 are connected to each other, and also includes the case that the mounting portion 10 and the liquid storage portion 20 are not connected to each other, for example, the mounting portion 10 and the liquid storage portion 20 abut against each other or are spaced apart from each other.

[0056] Specifically, the mounting portion 10 and the liquid storage portion 20 are connected to each other. In the embodiment, the mounting portion 10 and the liquid storage portion 20 can be detachably connected, for example, snap-fit connected, so as to facilitate maintenance and preservation of the gas processing device. The mounting portion 10 and the liquid storage portion 20 can also be non-detachably connected, for example, welded, so as to improve the connection strength between the mounting portion 10 and the liquid storage portion 20.

[0057] Specifically, the mounting portion 10 and the liquid storage portion 20 abut against each other. In the embodiment, the mounting portion 10 and the liquid storage portion 20 can be connected to the cabinet 60 or the door body 70, respectively, or the mounting portion 10 and the liquid storage portion 20 abut against each other through a connecting member, and there is no gap between them after installation, so as to reduce the space occupied by the gas processing device in the refrigerator.

[0058] Specifically, the mounting portion 10 and the liquid storage portion 20 are spaced apart from each other. In the embodiment, the mounting portion 10 and the liquid storage portion 20 can be connected to the cabinet 60 or the door body 70, respectively, and there is a gap between them after installation. Therefore, the mounting portion 10 and the liquid storage portion 20 can be installed at different positions of the refrigerator, respectively, to meet more installation requirements and reasonably utilize the space of the refrigerator.

[0059] For example, the mounting portion 10 and the liquid storage portion 20 are installed in different compartments of the cabinet 60 (or the door body 70), or the mounting portion 10 and the liquid storage portion 20 are installed in the compartments and the foamed layer of the cabinet 60 (or the door body 70), or the mounting portion 10 is installed in the cabinet 60 and the liquid storage portion 20 is installed in the door body 70 (for example, the bottle seat or the door-in-door of the door body 70), so as to facilitate the user to directly replenish the liquid on the door body 70.

[0060] Further, the gas processing device further comprises a liquid level sensor 50 exposed in the liquid storage chamber 201. In the embodiment, the liquid level sensor 50 can be used to detect the liquid level in the liquid storage chamber 201. Since the liquid storage chamber 201 is communicated with the reaction chamber 101, the liquid level in the liquid storage chamber 201 is the same as the liquid level in the reaction chamber 101. Therefore, the liquid level detected by the liquid level sensor 50 is the liquid level in the reaction chamber 101, which meets the requirement of detecting the liquid level in the reaction chamber 101. Compared with the scheme of "directly arranging the liquid level sensor 50 in the reaction chamber 101", the scheme can save the space of the reaction chamber 101, thereby reducing the volume of the mounting portion 10, avoiding the influence on the specific gas (e.g. oxygen) and negative electrons generated by the electrochemical reaction, and facilitating the transmission of negative electrons between the two electrodes.

[0061] In an embodiment not shown, the liquid level sensor 50 can also be arranged in the reaction chamber 101, i.e. exposed in the reaction chamber 101, for directly detecting the liquid level in the reaction chamber 101.

[0062] Specifically, the liquid level sensor 50 is connected to the mounting portion 10 and / or the liquid storage portion 20. In the embodiment, since the mounting portion 10 and the liquid storage portion 20 are arranged in a split manner, the liquid level sensor 50 is arranged in a manner of being connected to the liquid storage portion 20. When the mounting portion 10 and the liquid storage portion 20 are arranged in an integrated manner, the liquid level sensor 50 can be connected to the mounting portion 10 and / or the liquid storage portion 20 according to the requirement, as long as the liquid level sensor 50 is exposed in the liquid storage chamber 201.

[0063] Further, the first electrode 301 and the second electrode 302 extend along the vertical direction. In the embodiment, the first electrode 301 and the second electrode 302 are preferably arranged parallel to the vertical direction, which can save the size of the mounting portion 10 along the horizontal direction.

[0064] In other embodiments not shown, the first electrode 301 and the second electrode 302 can also be arranged at an angle with the vertical direction, thereby increasing the contact area of the two electrodes with the electrolyte at the same vertical height.

[0065] Preferably, the first electrode 301 and the second electrode 302 are arranged along the horizontal direction. In the embodiment, the first electrode 301 and the second electrode 302 are arranged opposite to each other along the horizontal direction, which can save the size of the mounting portion 10 along the vertical direction. Also, the mounting portion 10 is in a flat structure, which is beneficial to mounting the mounting portion 10 in the cabinet 60 or the door body 70, and saving the storage space of the refrigerator.

[0066] Specifically, the installation part 10 has an air outlet 102 exposing the reaction chamber 101 and a liquid inlet 103 communicating with the reaction chamber 101. In this embodiment, the specific gas increased in the reaction chamber 101 through the electrochemical reaction can be discharged to the outside of the gas treatment device through the air outlet 102, for example, into the fresh-keeping space. The external liquid (i.e. the liquid in the connecting part 40) can flow into the reaction chamber 101 through the liquid inlet 103.

[0067] Specifically, the liquid storage part 20 has a liquid supplement outlet 202 exposing the liquid storage chamber 201 and a liquid outlet 203 communicating with the liquid storage chamber 201. In this embodiment, the liquid storage chamber 201 is exposed to the outside of the gas treatment device through the liquid supplement outlet 202, and the liquid storage chamber 201 can be supplemented through the liquid supplement outlet 202. The liquid in the liquid storage chamber 201 can flow out through the liquid outlet 203 (i.e. to the connecting part 40) and to the reaction chamber 101.

[0068] When the connecting part 40 connects the reaction chamber 101 and the liquid storage chamber 201, the reaction chamber 101 and the liquid storage chamber 201 can be exposed to the same atmospheric pressure through the air outlet 102 and the liquid supplement outlet 202 respectively, so that the pressure in the reaction chamber 101 and the liquid storage chamber 201 is the same, thereby forming a communicating vessel between the reaction chamber 101 and the liquid storage chamber 201, realizing automatic liquid supplement of the reaction chamber 101 by the liquid storage chamber 201, and keeping the liquid level of the two chambers flat.

[0069] Preferably, the air outlet 102 communicates with the top of the reaction chamber 101, so that the reaction chamber 101 can store more liquid and facilitate the discharge of the specific gas. The liquid supplement outlet 202 communicates with the top of the liquid storage chamber 201, so that the liquid storage chamber 201 can store more liquid and facilitate the liquid supplement of the liquid storage chamber 201.

[0070] Further, the liquid inlet 103 is connected to the connecting part 40 and located at the bottom of the installation part 10. In this embodiment, the liquid inlet 103 communicates the reaction chamber 101 with the connecting part 40, i.e. the connecting part 40 is connected to the installation part 10. The liquid inlet 103 communicates with the bottom of the reaction chamber 101, which is conducive to the reaction chamber 101 receiving more liquid from the liquid storage chamber 201.

[0071] Further, the liquid outlet 203 is connected to the connecting part 40 and located at the bottom of the liquid storage part 20. In this embodiment, the liquid outlet 203 communicates the liquid storage chamber 201 with the connecting part 40, i.e. the connecting part 40 is connected to the liquid storage part 20. The liquid outlet 203 communicates with the bottom of the liquid storage chamber 201, which is conducive to emptying the liquid storage chamber 201, thereby delivering more liquid to the reaction chamber 101.

[0072] Further, the gas processing device further comprises a valve arranged at the communication part 40, the valve selectively connects or disconnects the reaction chamber 101 and the liquid storage chamber 201. In this embodiment, by arranging the valve at the communication part 40, the reaction chamber 101 and the liquid storage chamber 201 are connected by opening the valve, and the connection between the reaction chamber 101 and the liquid storage chamber 201 is disconnected by closing the valve.

[0073] For example, by arranging the valve, the connection between the reaction chamber 101 and the liquid storage chamber 201 can be selectively controlled. Compared with the scheme that the reaction chamber 101 and the liquid storage chamber 201 are always connected, the mounting part 10 and the liquid storage part 20 can be arranged at different levels, that is, when the valve is closed, the liquid level in the liquid storage chamber 201 is different from the liquid level in the reaction chamber 101, for example, when the valve is closed, the liquid level in the liquid storage chamber 201 is higher than the liquid level in the reaction chamber 101, so that the liquid storage chamber 201 can store more liquid for the reaction chamber 101, and the liquid storage chamber 201 can be connected to the reaction chamber 101 again when the liquid level in the reaction chamber 101 is low.

[0074] Moreover, by arranging the valve, the mounting part 10 or the liquid storage part 20 can also be separately disassembled and replenished with liquid, for example, the liquid storage part 20 is arranged on the door body 70, and the mounting part 10 is arranged on the box body 60, the liquid storage part 20 is separately disassembled and replenished with liquid, and the reaction chamber 101 is replenished with liquid.

[0075] Specifically, the communication part 40 is configured as a hose. In this embodiment, after the communication part 40 is configured as a hose, the gas processing device can adapt to more installation scenarios of the refrigerator. For example, the mounting part 10 is arranged on the box body 60, and the liquid storage part 20 is arranged on the door body 70, and the communication part 40 (i.e. the hose) connecting the mounting part 10 and the liquid storage part 20 can be routed from the hinge box.

[0076] Specifically, the communication part 40 is respectively sealed and connected with the mounting part 10 and the liquid storage part 20. In this embodiment, after the communication part 40 is respectively sealed and connected with the mounting part 10 and the liquid storage part 20, for example, by connecting through a pipe joint, liquid leakage is avoided.

[0077] Specifically, the mounting part 10 has a mounting opening 104 communicating with the reaction chamber 101 and matched with the first electrode 301, and the first electrode 301 is sealingly arranged in the mounting opening 104. In this embodiment, the first electrode 301 is sealingly arranged in the mounting opening 104, so that liquid in the reaction chamber 101 can not leak through the joint between the first electrode 301 and the mounting opening 104.

[0078] Further, the mounting part 10 comprises a bottom wall 105 and a side wall 106 surrounding the periphery of the bottom wall 105, and the mounting opening 104 is arranged on the bottom wall 105 and / or the side wall 106.

[0079] For example, since the first electrode 301 extends along the vertical direction, the mounting hole 104 is arranged on the side wall 106 to form the reaction chamber 101 together with the mounting portion 10.

[0080] Of course, in other embodiments, when the first electrode 301 extends along the horizontal direction, the mounting hole 104 can also be arranged on the bottom wall 105 (as shown in FIG. 4) as long as it can form the reaction chamber 101 together with the mounting portion 10. Figure 8

[0081] Specifically, the first electrode 301 is configured to consume oxygen through an electrochemical reaction, and the second electrode 302 is configured to provide a reactant to the first electrode 301 and generate oxygen through an electrochemical reaction. In this embodiment, the first electrode 301 and the second electrode 302 are arranged apart from each other. The first electrode 301 is used to be connected to the negative pole of the power supply and perform a reduction reaction. The second electrode 302 is used to be connected to the positive pole of the power supply and perform an oxidation reaction. The gap between the first electrode 301 and the second electrode 302 is filled with an electrolyte.

[0082] For example, the specific gas is preferably oxygen. Thus, the oxygen in the fresh-keeping space can be reduced at the first electrode 301, i.e. O2+2H2O+4e - →4OH - The OH - generated by the first electrode 301 can be oxidized at the second electrode 302 to generate oxygen and deliver it into the fresh-keeping space, i.e. 4OH - →O2+2H2O+4e - The second electrode 302 not only uses OH - to perform an electrochemical reaction, but also provides a reactant, such as an electron e - , to the first electrode 301. The waterproof and breathable membrane arranged on the first electrode 301 can allow the oxygen in the fresh-keeping space to pass through and be reduced at the first electrode 301, while the liquid in the reaction chamber 10 cannot pass through the waterproof and breathable membrane.

[0083] In other different embodiments, the gas treatment device can also use other types of electrochemical reactions and process other types of specific gas components, such as electrochemical reactions for generating or consuming carbon dioxide, electrochemical reactions for generating or consuming nitrogen, electrochemical reactions for generating or consuming ethylene, etc.

[0084] ​Exemplarily, the first fresh-keeping space and the second fresh-keeping space are arranged in the box 60, the first fresh-keeping space is separated from the second fresh-keeping space, the outer wall of the mounting portion 10 (i.e. the first electrode 301) is exposed in the first fresh-keeping space, and the first fresh-keeping space constitutes a low-temperature and low-oxygen space; the gas outlet 102 is in flow communication with the second fresh-keeping space, and the second fresh-keeping space constitutes a low-temperature and high-oxygen space.

[0085] Reference Figure 7 As shown in the drawings, the gas treatment device provided by the preferred another embodiment of the utility model, the first electrode 301 and the second electrode 302 all extend along the horizontal direction, and the volume of the mounting portion 10 along the vertical direction can be saved. In the embodiment, the same reference numerals represent the same elements having similar functions, and no further description is given.

[0086] Further, the first electrode 301 and the second electrode 302 all extend along the horizontal direction. In the embodiment, the first electrode 301 and the second electrode 302 are preferably arranged parallel to the horizontal direction, and the size of the mounting portion 10 along the vertical direction can be saved.

[0087] In other embodiments not shown, the first electrode 301 and the second electrode 302 can also be arranged at an angle with the horizontal direction, so as to increase the contact area of the two electrodes with the electrolyte under the same horizontal width.

[0088] Preferably, the first electrode 301 and the second electrode 302 are arranged along the vertical direction. In the embodiment, the first electrode 301 and the second electrode 302 are arranged opposite to each other along the vertical direction, and the size of the mounting portion 10 along the horizontal direction can be saved. The mounting portion 10 also has a flat structure, which is beneficial to saving the storage space of the refrigerator when the mounting portion 10 is installed in the box 60 or the door body 70.

[0089] Further, the second electrode 302 is located above the first electrode 301, and the second electrode 302 is provided with a gas-permeable hole 3021. In the embodiment, the second electrode 302 is arranged in sequence with the first electrode 301 along the vertical direction, and the second electrode 302 is provided with the gas-permeable hole 3021 for gas permeation. The bubbles generated by the second electrode 302 escape upward through the gas-permeable hole 3021, the bubble discharge path is short, the surface of the second electrode 302 is not covered, the working efficiency of the second electrode 302 is high, and the overall working efficiency is improved.

[0090] Exemplarily, the second electrode 302 is provided with the gas-permeable hole 3021 penetrating the second electrode 302 along the vertical direction. By arranging the gas-permeable hole 3021, the gas can pass through the gas-permeable hole 3021, that is, the gas at the bottom surface of the second electrode 302 can directly rise to the top surface of the second electrode 302 through the gas-permeable hole 3021 and finally move upward to discharge the liquid surface.

[0091] Preferably, a plurality of air-permeable holes 3021 are uniformly arranged on the second electrode 302, so that the bubbles generated on the second electrode 302 can uniformly and quickly pass through the second electrode 302.

[0092] Moreover, the first electrode 301 and the second electrode 302 are both horizontally arranged, so that the current direction of the first electrode 301 and the second electrode 302 is perpendicular to the liquid surface of the electrolyte, and the negative electrons move along the shortest path, which can improve the efficiency of the electrochemical reaction. Meanwhile, this structure ensures that the specific gas generated by the second electrode 302 directly vertically moves upward and is discharged from the liquid surface, and basically does not gather. The area where the specific gas is discharged is outside the area where the current flows, and the resistance to the current can be basically ignored.

[0093] In addition, since the air-permeable holes 3021 are arranged on the second electrode 302, the specific gas generated by the second electrode 302 migrates from bottom to top, directly passes through the second electrode 302, and escapes upward along a shorter path. The bubbles generated continuously can quickly escape, reducing the resistance to the current and improving the efficiency of the electrochemical reaction. Moreover, the bubbles covering the surface of the second electrode 302 are reduced, so that the surface of the second electrode 302 and the electrolyte are in full contact, which can improve the efficiency of the electrochemical reaction. In addition, since the air-permeable holes 3021 are arranged, the negative electrons can also pass through the air-permeable holes 3021 and contact the side of the second electrode 302 away from the first electrode 301 to react, thereby increasing the contact area for reaction and improving the efficiency of the electrochemical reaction.

[0094] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0095] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or modifications made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A gas treatment device, characterized by The gas treatment device comprises: a reaction chamber (101); a liquid storage part (20) having a liquid storage chamber (201); an electrode group (30) comprising a first electrode (301) and a second electrode (302) exposed in the reaction chamber (101); wherein the gas treatment device further comprises a communication part (40) connecting the reaction chamber (101) and the liquid storage chamber (201) so that the liquid level in the reaction chamber (101) and the liquid level in the liquid storage chamber (201) are at the same level.

2. The gas processing apparatus of claim 1, wherein The gas treatment device further comprises a mounting part (10) connected to the electrode group (30), the first electrode (301) forms at least part of the outer wall of the mounting part (10) and forms the reaction chamber (101) together with the mounting part (10).

3. The gas processing apparatus of claim 2, wherein The mounting part (10) is separately provided from the liquid storage part (20).

4. The gas processing apparatus of claim 2, wherein The mounting part (10) is integrally formed with the liquid storage part (20).

5. The gas processing apparatus of claim 2, wherein The mounting part (10) and the liquid storage part (20) are connected to each other, abut each other or are spaced apart.

6. The gas processing apparatus of claim 2, wherein The gas treatment device further comprises a liquid level sensor (50) exposed in the liquid storage chamber (201), the liquid level sensor (50) is connected to the mounting part (10) and / or the liquid storage part (20).

7. The gas processing apparatus of claim 1, wherein The first electrode (301) and the second electrode (302) both extend along the vertical direction, and the first electrode (301) and the second electrode (302) are arranged along the horizontal direction.

8. The gas processing apparatus of claim 1, wherein The first electrode (301) and the second electrode (302) both extend along the horizontal direction, and the first electrode (301) and the second electrode (302) are arranged along the vertical direction.

9. The gas processing apparatus of claim 8, wherein The second electrode (302) is located above the first electrode (301), and the second electrode (302) is provided with a gas permeable hole (3021).

10. The gas processing apparatus of claim 2, wherein The mounting part (10) has a gas outlet (102) exposing the reaction chamber (101) and a liquid inlet (103) connected to the reaction chamber (101), the liquid storage part (20) has a liquid supplementing port (202) exposing the liquid storage chamber (201) and a liquid outlet (203) connected to the liquid storage chamber (201), the liquid inlet (103) is connected to the communication part (40) and located at the bottom of the mounting part (10), and the liquid outlet (203) is connected to the communication part (40) and located at the bottom of the liquid storage part (20).

11. The gas processing apparatus of claim 1, wherein The gas treatment device further comprises a valve arranged in the communication part (40), the valve selectively connects or disconnects the reaction chamber (101) and the liquid storage chamber (201).

12. The gas processing apparatus of claim 2, wherein The communication part (40) is configured as a hose and is sealed and connected to the mounting part (10) and the liquid storage part (20) respectively.

13. The gas processing apparatus of claim 2, wherein The mounting part (10) has a mounting opening (104) connected to the reaction chamber (101) and matched with the first electrode (301), and the first electrode (301) is sealingly arranged in the mounting opening (104).

14. The gas processing apparatus of claim 1, wherein, The first electrode (301) is configured to consume oxygen by electrochemical reaction, and the second electrode (302) is configured to provide reactants to the first electrode (301) by electrochemical reaction and generate oxygen.

15. A refrigerator characterized by comprising: The refrigerator comprises the gas processing device according to any one of claims 1 to 14.

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