CN210292481U - Oxygen separation device and refrigerator - Google Patents
Oxygen separation device and refrigerator Download PDFInfo
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- CN210292481U CN210292481U CN201920525750.9U CN201920525750U CN210292481U CN 210292481 U CN210292481 U CN 210292481U CN 201920525750 U CN201920525750 U CN 201920525750U CN 210292481 U CN210292481 U CN 210292481U
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Abstract
The utility model relates to the technical field of refrigerators, and provides an oxygen separation device and a refrigerator, which comprise an electrolysis chamber, an anode and a cathode; the electrolytic chamber is provided with an electrolytic cavity for filling electrolyte, the side wall of a preset area of the electrolytic cavity is a waterproof breathable film for contacting with a preset space, the anode and the cathode are respectively positioned in the electrolytic cavity, and the cathode is arranged on the waterproof breathable film; the top of the electrolysis cavity is provided with an air outlet communicated with the external space. The oxygen separation device can continuously obtain oxygen from the preset space and transfer the oxygen to the external space, the oxygen concentration in the preset space can be continuously reduced, and only the cathode and the anode need to be electrified in the process of reducing the oxygen content in the preset space, so that the oxygen separation device is very convenient to use and simple to operate.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator, more specifically say, relate to an oxygen separator and refrigerator.
Background
The preservation is a very important index of the refrigerator, most microorganisms need to rely on oxygen, the existing preservation mode is generally to reduce the oxygen content in the refrigerator, the oxygen content in the refrigerator can be reduced by filling nitrogen or vacuumizing the refrigerator, but the operation mode is very complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oxygen separation device to solve the technical problem that the operation of the interior oxygen content of reduction predetermined space that exists among the prior art is very complicated.
In order to achieve the above object, the utility model adopts the following technical scheme: an oxygen separation device is provided for reducing the oxygen content in a predetermined space, and comprises an electrolysis chamber, an anode and a cathode; the electrolytic chamber is provided with an electrolytic cavity for filling electrolyte, the side wall of a preset region of the electrolytic cavity is a waterproof breathable film for contacting with the preset space, the anode and the cathode are respectively positioned in the electrolytic cavity, and the cathode is arranged on the waterproof breathable film; the top of the electrolysis cavity is provided with an air outlet communicated with the external space.
Further, the electrolysis chamber top is provided with the liquid reserve tank, the liquid reserve tank has the liquid reserve chamber that is used for saving electrolyte, the bottom in liquid reserve chamber with the gas outlet intercommunication, the top in liquid reserve chamber has the gas vent with the exterior space intercommunication.
Further, the number of the exhaust ports is at least one.
Further, a water level monitoring device is arranged in the liquid storage cavity.
Further, the waterproof breathable film is a polytetrafluoroethylene film.
Furthermore, the cathode is a thin film formed by rolling polytetrafluoroethylene, activated carbon and any one of catalysts of silver, platinum alloy, perovskite type oxide or manganese dioxide.
Further, still including the dehumidification module that has gaseous dehumidification passageway and water storage chamber, gaseous dehumidification passageway with the gas vent intercommunication, the water storage chamber with stock solution chamber intercommunication.
Further, still include the casing, the casing has and holds the chamber, the electrolysis chamber is located hold the intracavity, just be provided with on the casing with hold the bleeder vent that the chamber communicates.
Further, the air holes are arranged in a matrix.
The utility model also provides a refrigerator, including the box that has storing space with oxygen separator, waterproof ventilated membrane with storing space contact.
The utility model provides an oxygen separation device's beneficial effect lies in: compared with the prior art, the utility model provides an oxygen separation device, oxygen in the predetermined space enters into the electrolysis chamber through waterproof ventilated membrane, and the oxygen that enters into in the electrolysis chamber carries out electrochemical reduction through the negative pole and produces OH-And/or HO2，OH-And/or HO2Diffusing in electrolyte to anode to generate oxidation reaction to generate O2(ii) a O generated at the anode2Then discharged to the external space through the air outlet; the oxygen separation device can continuously obtain oxygen from the preset space and transfer the oxygen to the external space, the oxygen concentration in the preset space can be continuously reduced, and only the cathode and the anode need to be electrified in the process of reducing the oxygen content in the preset space, so that the oxygen separation device is very convenient to use and simple to operate. The oxygen separation device can also be applied to refrigerators.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic cross-sectional structural view of an oxygen separation device according to an embodiment of the present invention;
fig. 2 is a schematic perspective view illustrating a housing according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating an installation of the oxygen separation device in a closed state of the liquid storage tank according to the embodiment of the present invention;
fig. 4 is a first schematic view illustrating the installation of the oxygen separation device and the liquid storage tank in a disassembled state according to the embodiment of the present invention;
fig. 5 is a second schematic view illustrating the installation of the oxygen separation device when the liquid storage tank is disassembled;
fig. 6 is an installation schematic diagram of a dehumidification module according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-an electrolysis chamber; 11-an electrolysis chamber; 12-waterproof breathable film; 13-air outlet; 21-a cathode; 22-an anode; 3-a liquid storage tank; 31-a liquid storage cavity; 32-an exhaust port; 4-a water level monitoring device; 5-a shell; 51-a containment chamber; 52-air holes; 6-power supply; 7-dehumidification module.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Referring to fig. 1, the oxygen separation device of the present invention will now be described. The oxygen separation device for reducing the oxygen content in a predetermined space (not shown) includes an electrolytic chamber 1, an anode 22, and a cathode 21; the electrolytic chamber 1 is provided with an electrolytic cavity 11 for filling electrolyte, the side wall of a preset region of the electrolytic cavity 11 is a waterproof breathable film 12 for contacting with the preset space, an anode 22 and a cathode 21 are respectively positioned in the electrolytic cavity 11, and the cathode 21 is arranged on the waterproof breathable film 12; the top of the electrolysis cavity 11 is provided with an air outlet 13 communicated with the external space.
Thus, oxygen in the predetermined space enters the electrolytic chamber 11 through the waterproof gas-permeable membrane 12, and the oxygen entering the electrolytic chamber 11 undergoes electrochemical reduction to produce OH through the cathode 21-And/or HO2，OH-And/or HO2Diffused to the anode 22 in the electrolyte to generate O by oxidation reaction2(ii) a O generated at the anode2And then discharged to the external space through the outlet port 13; the oxygen separation device can continuously obtain oxygen from the preset space and transfer the oxygen to the external space, the oxygen concentration in the preset space can be continuously reduced, and only the cathode and the anode need to be electrified in the process of reducing the oxygen content in the preset space, so that the oxygen separation device is very convenient to use and simple to operate.
In addition, the oxygen separation device discharges oxygen in the preset space through an electrochemical principle, so that a nitrogen-rich and low-oxygen (nitrogen-rich and low-oxygen: air is in the preset space in an initial state, and the content of nitrogen is increased after the content of oxygen is reduced) environment is formed in the preset space, and the preservation effect of fruits and vegetables is greatly improved, and the quality guarantee period is effectively prolonged. 【2】 The oxygen separation device can regulate the oxygen content in a predetermined space in a wide range (1% to 20%). 【3】 The oxygen separation device has the advantage of forming a nitrogen-rich and low-oxygen environment at a fast rate. 【4】 The technology does not generate higher negative pressure in the nitrogen-rich and low-oxygen environment formed in the preset space, so that the strength of the material forming the preset space and the overall sealing performance of the preset space are not required specially, and a common sealing material (a common sealing material, such as a silica gel sealing ring) is adopted. 【5】 The oxygen separation device has no mechanical part and no noise problem. 【6】 The oxygen separation device does not relate to chemical reagents and has no chemical reagent residue problem.
Wherein, the side wall of the predetermined area may be any one of the side walls of the electrolytic chamber 11 as long as the side wall is in contact with the predetermined space.
Alternatively, the reduction of oxygen at the cathode 21 occurs as: o is2+2H2O+4e-→4OH-；O2+H2O+2e-→HO2+OH-。
Alternatively, the oxidation reaction occurring at the anode 22 is: 4OH-→O2+2H2O+4e-；HO2+OH-→ O2+H2O+2e-。
Alternatively, in one embodiment, the electrolytic cell 1 has a rectangular parallelepiped shape, so that the cathode 21 and the anode 22 are easily inserted.
Further, please refer to fig. 1 to 5, as a specific embodiment of the oxygen separation device provided by the present invention, a liquid storage tank 3 is disposed above the electrolysis chamber 1, the liquid storage tank 3 has a liquid storage cavity 31 for storing electrolyte, the bottom of the liquid storage cavity 31 is communicated with the gas outlet 13, and the top of the liquid storage cavity 31 has a gas outlet 32 communicated with the external space. In this way, the electrolyte in the liquid storage tank 3 can be supplemented into the electrolytic chamber 1 through the air outlet 13; the gas outlet 13 is communicated with the external space through the liquid storage cavity 31 and the gas outlet 32 in sequence, namely, oxygen generated in the electrolysis cavity 11 is discharged to the external space through the gas outlet 13, the liquid storage cavity 31 and the gas outlet 32 in sequence.
Further, referring to fig. 1 to 5, as an embodiment of the oxygen separation device of the present invention, the number of the exhaust ports 32 is at least one. In this manner, the gas in the reservoir 3 can be more rapidly exhausted through the at least one exhaust port 32.
Further, referring to fig. 1 to 5, as a specific embodiment of the oxygen separation device of the present invention, a water level monitoring device 4 is disposed in the liquid storage chamber 31. Thus, the water level monitoring device 4 can detect the liquid level position in the liquid storage tank 3.
Alternatively, in one embodiment, when the liquid level is lower than the predetermined position, the water level monitoring device 4 can issue a corresponding alarm to remind the user to add the electrolyte into the reservoir chamber 31.
Further, referring to fig. 1 to 5, as an embodiment of the oxygen separation device of the present invention, the waterproof breathable film 12 is a ptfe film. Thus, the polytetrafluoroethylene film has good air permeability, and also has the functions of resisting acid, alkali and various organic solvents.
Further, referring to fig. 1 to 5, as an embodiment of the oxygen separation device of the present invention, the cathode 21 is a thin film formed by rolling polytetrafluoroethylene, activated carbon, and a catalyst selected from silver, platinum alloy, perovskite oxide, and manganese dioxide. Thus, any one of silver, platinum alloy, perovskite type oxide, or manganese dioxide serves as a catalyst; the activated carbon has adsorptivity and hydrophilicity, and is convenient for adsorbing oxygen to perform reduction reaction under the action of a catalyst.
Further, referring to fig. 1 to 5, as an embodiment of the oxygen separation device of the present invention, the anode 22 is an integrally formed part made of metal. Alternatively, in one embodiment, the anode 22 is a nickel plate; of course, in other embodiments, the anode 22 may be other metals.
Further, please refer to fig. 1 to 6, which are specific embodiments of the oxygen separation device of the present invention, further comprising a dehumidifying module 7 having a gas dehumidifying channel (not shown) and a water storage cavity (not shown), wherein the gas dehumidifying channel is communicated with the gas outlet 32, and the water storage cavity is communicated with the liquid storage cavity. In this way, the gas output from the exhaust port 32 passes through the gas dehumidification channel of the dehumidification module 7 and is dehumidified; the moisture absorbed by the dehumidification channel is stored in the water storage cavity, and then the moisture in the water storage cavity is supplemented into the liquid storage cavity. Specifically, in one embodiment, the gas dehumidification channel is a pipe. Specifically, in one embodiment, the dehumidification module 7 is a semiconductor dehumidification device. Specifically, in one embodiment, the semiconductor dehumidification device includes a semiconductor refrigeration element in contact with the gas within the gas dehumidification channel.
Further, please refer to fig. 1 to 5, which are specific embodiments of the oxygen separation device of the present invention, further comprising a housing 5, wherein the housing 5 has a containing cavity 51, the electrolysis chamber 1 is located in the containing cavity 51, and the housing 5 is provided with a vent 52 communicated with the containing cavity 51. In this way, the casing 5 can protect the electrolytic cell 1; oxygen enters the accommodating cavity 51 through the ventilation hole 52 and then enters the electrolytic chamber 1.
Optionally, in one embodiment, the power supply 6 for the cathode 21 and the anode 22 is located within the receiving chamber 51. Specifically, in one embodiment, the power supply 6 is spaced from the electrolysis chamber 1, thus facilitating heat dissipation from the power supply 6.
Further, referring to fig. 2, as a specific embodiment of the oxygen separation device of the present invention, the air holes 52 are arranged in a matrix. In this way, oxygen can be more uniformly introduced into the accommodating chamber 51 through the air holes 52 arranged in a matrix.
Referring to fig. 1 to 5, the present invention further provides a refrigerator, which comprises a box body having a storage space (not shown) and an oxygen separation device, wherein the waterproof breathable film 12 is in contact with the storage space. Therefore, the storage space can be used for placing products needing to be stored; oxygen in the storage space enters the electrolytic cavity 11 through the waterproof breathable film 12 and is discharged to the external space from the gas outlet 13, so that the oxygen content in the storage space is reduced, and the freshness of products in the storage space is convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The oxygen separation device is used for reducing the oxygen content in a preset space and comprises an electrolysis chamber, an anode and a cathode; the method is characterized in that: the electrolytic chamber is provided with an electrolytic cavity for filling electrolyte, the side wall of a preset region of the electrolytic cavity is a waterproof breathable film for contacting with the preset space, the anode and the cathode are respectively positioned in the electrolytic cavity, and the cathode is arranged on the waterproof breathable film; the top of the electrolysis cavity is provided with an air outlet communicated with the external space.
2. The oxygen separation device of claim 1, wherein: the electrolysis chamber top is provided with the liquid reserve tank, the liquid reserve tank has the liquid reserve chamber that is used for saving electrolyte, the bottom in liquid reserve chamber with the gas outlet intercommunication, the top in liquid reserve chamber has the gas vent with the exterior space intercommunication.
3. The oxygen separation device of claim 2, wherein: the number of the exhaust ports is at least one.
4. The oxygen separation device of claim 2, wherein: a water level monitoring device is arranged in the liquid storage cavity.
5. The oxygen separation device of claim 1, wherein: the waterproof breathable film is a polytetrafluoroethylene film.
6. The oxygen separation device of claim 1, wherein: the cathode is a film formed by rolling polytetrafluoroethylene, activated carbon and any one catalyst of silver, platinum alloy, perovskite type oxide or manganese dioxide.
7. The oxygen separation device of claim 2, wherein: still including the dehumidification module that has gaseous dehumidification passageway and water storage chamber, gaseous dehumidification passageway with the gas vent intercommunication, the water storage chamber with stock solution chamber intercommunication.
8. The oxygen separation device of any one of claims 1 to 7, wherein: still include the casing, the casing has and holds the chamber, the electrolysis chamber is located hold the intracavity, just be provided with on the casing with hold the bleeder vent of chamber intercommunication.
9. The oxygen separation device of claim 8, wherein: the air holes are arranged in a matrix.
10. Refrigerator, including the box that has storing space, its characterized in that: further comprising the oxygen separation device of any of claims 1 to 9, the waterproof, breathable membrane being in contact with the storage space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525750.9U CN210292481U (en) | 2019-04-17 | 2019-04-17 | Oxygen separation device and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525750.9U CN210292481U (en) | 2019-04-17 | 2019-04-17 | Oxygen separation device and refrigerator |
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| CN210292481U true CN210292481U (en) | 2020-04-10 |
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| CN201920525750.9U Active CN210292481U (en) | 2019-04-17 | 2019-04-17 | Oxygen separation device and refrigerator |
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| CN112535357A (en) * | 2020-12-18 | 2021-03-23 | 佛山顺德歌林美电子产品有限公司 | Deoxidization locker with electrolyte complementary system |
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- 2019-04-17 CN CN201920525750.9U patent/CN210292481U/en active Active
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| CN111895717A (en) * | 2020-07-21 | 2020-11-06 | 海信容声(广东)冰箱有限公司 | Fresh-keeping device and refrigerator with same |
| WO2022068913A1 (en) * | 2020-09-30 | 2022-04-07 | 海信容声(广东)冰箱有限公司 | Refrigerator |
| CN112535357B (en) * | 2020-12-18 | 2023-10-20 | 佛山顺德歌林美电器科技有限公司 | Deoxidizing storage cabinet with electrolyte supplementing system |
| CN112535357A (en) * | 2020-12-18 | 2021-03-23 | 佛山顺德歌林美电子产品有限公司 | Deoxidization locker with electrolyte complementary system |
| WO2022242241A1 (en) * | 2021-05-20 | 2022-11-24 | 青岛海尔电冰箱有限公司 | Refrigerator and electrolytic deoxidizing device thereof |
| CN116212603A (en) * | 2021-12-03 | 2023-06-06 | 青岛海尔电冰箱有限公司 | Electrolytic deoxidization system for refrigerator and refrigerator with same |
| WO2023098387A1 (en) * | 2021-12-03 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Liquid storage device having filtering and recycling functions, and refrigerator having liquid storage device |
| WO2023098838A1 (en) * | 2021-12-03 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Electrolytic deoxygenation device, refrigerator having same, and control method therefor |
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| WO2023142829A1 (en) * | 2022-01-29 | 2023-08-03 | 青岛海尔电冰箱有限公司 | Electrolytic oxygen removal device and refrigerator |
| WO2023155667A1 (en) * | 2022-02-16 | 2023-08-24 | 青岛海尔电冰箱有限公司 | Refrigerator and electrolytic oxygen removal device thereof |
| WO2023155668A1 (en) * | 2022-02-16 | 2023-08-24 | 青岛海尔电冰箱有限公司 | Refrigerator and electrolytic deoxygenization system thereof |
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