WO2023142643A1 - 气体处理装置以及具有其的冰箱 - Google Patents

气体处理装置以及具有其的冰箱 Download PDF

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Publication number
WO2023142643A1
WO2023142643A1 PCT/CN2022/134341 CN2022134341W WO2023142643A1 WO 2023142643 A1 WO2023142643 A1 WO 2023142643A1 CN 2022134341 W CN2022134341 W CN 2022134341W WO 2023142643 A1 WO2023142643 A1 WO 2023142643A1
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Prior art keywords
electrode plate
gas
treatment device
arc
gas treatment
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PCT/CN2022/134341
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English (en)
French (fr)
Inventor
苗建林
李春阳
朱小兵
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Publication of WO2023142643A1 publication Critical patent/WO2023142643A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the invention relates to fresh-keeping technology, in particular to a gas processing device and a refrigerator with the same.
  • Controlled atmosphere preservation which achieves the purpose of preservation by adjusting the gas ratio of the storage space.
  • the refrigerator In order to achieve the purpose of modified atmosphere preservation, 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.
  • the gas processing device has a certain volume and needs to occupy a certain installation space, which will have a significant impact on the structural layout of the refrigerator. However, if the volume of the gas treatment device is reduced, the effective contact area between the gas treatment device and the gas to be treated will be affected, and the gas conditioning efficiency will be reduced.
  • An object of the present invention is to overcome at least one technical defect in the prior art, and provide a gas processing device and a refrigerator having the same.
  • a further object of the present invention is to make the gas treatment device have the advantages of high gas conditioning efficiency and miniaturization.
  • Another further object of the present invention is to adapt the gas treatment device to be installed in a specific space and increase the diversity of its installation positions.
  • a gas treatment device a housing having an arc-shaped curved surface; a gas-permeable area is provided on the arc-shaped curved surface; the interior of the housing defines an electrolytic chamber located inside the gas-permeable area; the first electrode plate, It is an arc-shaped curved plate adapted to the shape of the arc-shaped curved surface, and is arranged at the air-permeable area; and the second electrode plate is opposite in polarity to the first electrode plate, and is at least partially arranged in the electrolytic chamber.
  • the shell is in the shape of a hollow sphere, and its shell wall forms an arc-shaped curved surface.
  • the air-permeable area is arranged on the hemispherical surface of the casing.
  • the second electrode plate is opposite to the first electrode plate, and is arranged in the central section plane of the casing.
  • the air-permeable area is an opening or a through hole arranged in an array.
  • the first electrode plate is disposed inside the air-permeable area and covers the air-permeable area.
  • the first electrode plate has a waterproof and gas-permeable membrane; or a waterproof and gas-permeable membrane is disposed on the gas-permeable area, and the first electrode plate is disposed on the inside or outside of the waterproof and gas-permeable membrane.
  • the first electrode plate is a cathode, which is used to connect to the negative pole of the power supply, so as to consume oxygen by performing an electrochemical reaction under the action of the electrolysis voltage; and the second electrode plate is an anode, which is used to connect to the positive pole of the power supply, The reactant is provided to the first electrode plate through an electrochemical reaction under the action of the electrolysis voltage.
  • the first electrode plate is an anode, which is used to connect to the positive pole of the power supply, so as to provide reactants to the first electrode plate and generate oxygen by performing an electrochemical reaction under the action of electrolysis voltage
  • the second electrode plate is a cathode, It is used to connect with the negative pole of the power supply to consume oxygen through electrochemical reaction under the action of electrolysis voltage
  • the housing also defines a ventilation chamber located on one side of the electrolysis chamber and connected to the outer space of the housing; and the second electrode plate It is located between the ventilation chamber and the electrolysis chamber, and separates the ventilation chamber and the electrolysis chamber.
  • the second electrode plate has a waterproof and gas-permeable membrane; or a waterproof and gas-permeable membrane for separating the ventilation chamber and the electrolysis chamber is arranged in the housing, and the second electrode plate is arranged on the side of the waterproof and gas-permeable membrane facing the electrolysis chamber.
  • the shell is in the shape of a hollow column, and its shell wall forms an arc-shaped curved surface.
  • the air-permeable area is arranged on a half side of the casing.
  • a refrigerator including: the gas processing device according to any one of the above.
  • the housing of the gas processing device has an arc-shaped curved surface
  • a gas-permeable area is provided on the arc-shaped curved surface
  • the first electrode plate is arranged in an arc shape that matches the shape of the arc-shaped curved surface.
  • Curved plate, and the second electrode plate is at least partly arranged in the electrolytic chamber in the casing, which can increase the contact area between the first electrode plate and the outside air of the casing by using the limited volume, so the gas treatment device has high gas-conditioning efficiency and volume Advantages of miniaturization.
  • the gas processing device and the refrigerator with it of the present invention because the shell can be hollow spherical, this unique shape makes the gas processing device suitable for installation in certain specific spaces, such as the compressor compartment or air duct of the refrigerator, etc. , which is beneficial to increase the diversity of installation positions of the gas treatment device.
  • Fig. 1 is a schematic structural diagram of a gas treatment device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a gas treatment device according to another embodiment of the present invention.
  • Fig. 3 is a schematic cross-sectional view taken along the section line A-A of the gas treatment device shown in Fig. 2;
  • Fig. 4 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.
  • Fig. 1 is a schematic structural diagram of a gas treatment device 200 according to an embodiment of the present invention.
  • the gas processing device 200 may generally include a housing 210 , a first electrode plate 220 and a second electrode plate 240 .
  • the gas treatment device 200 of this embodiment processes the specific substance components in the gas flowing through it through electrochemical reaction, for example, increases or decreases the content of the specific substance components.
  • the housing 210 has an arc-shaped curved surface 212 .
  • the arc-shaped curved surface 212 may be a curved surface that arches toward the outside of the casing 210 , or may be a curved surface that is concave toward the inside of the casing 210 .
  • a ventilating area 212a is defined on the arc-shaped curved surface 212 .
  • the gas permeable region 212a allows gas to pass through.
  • the form of the air-permeable area 212a is not limited, as long as it can play the role of air-permeable. For example, openings can be directly opened on the arc-shaped curved surface 212 , or holes can be made on the arc-shaped curved surface 212 .
  • the interior of the housing 210 defines an electrolysis chamber 214 located inside the gas permeable region 212a.
  • the electrolytic cavity 214 is used to contain the electrolyte, so that the first electrode plate 220 and the second electrode plate 240 described below are immersed in the electrolyte.
  • the first electrode plate 220 is a plate with an arc-shaped curved surface 212 adapted to the shape of the arc-shaped curved surface 212, and is disposed at the air-permeable area 212a.
  • the first electrode plate 220 is adapted to the shape of the arc-shaped curved surface 212 , so that the first electrode plate 220 can be attached to the air-permeable area 212 a of the arc-shaped curved surface 212 .
  • the arc of the first electrode plate 220 is the same as the arc of the curved surface 212 .
  • the second electrode plate 240 is opposite in polarity to the first electrode plate 220 , and is at least partially disposed in the electrolysis chamber 214 so as to be at least partially immersed in the electrolyte contained in the electrolysis chamber 214 .
  • the gas processing device 200 of this embodiment since its housing 210 has an arc-shaped curved surface 212, a gas-permeable area 212a is provided on the arc-shaped curved surface 212, and the first electrode plate 220 is set in an arc shape that matches the shape of the arc-shaped curved surface 212. Curved surface 212 plate, and the second electrode plate 240 is at least partly arranged in the electrolytic chamber 214 in the housing 210, the contact area between the first electrode plate 220 and the external gas of the housing 210 can be improved by using the limited volume, therefore, the gas treatment device 200 has the advantages of high air conditioning efficiency and small size.
  • the gas treatment device 200 of this embodiment adds an arc-shaped curved surface 212 structure, which creatively provides a new gas treatment device 200 with a unique shape and structure, which breaks through the flat structure of the refrigerator 10.
  • the ideological shackles of straight structure layout The structural concept of the arc-shaped curved surface 212 is not only reflected on the electrode plate, but also on the shell 210 , so that the gas treatment device 200 can fully contact the first electrode plate 220 with the gas to be treated with a small volume.
  • the shell 210 is in the shape of a hollow sphere, and its shell wall forms an arc-shaped curved surface 212 . That is to say, the housing 210 as a whole is a round arc-shaped surface 212, and the air-permeable area 212a can be selectively arranged at any position, and can occupy a larger area, thereby obtaining a larger air-permeable area.
  • the housing 210 can be hollow spherical, this unique shape makes the gas processing device 200 suitable for installation in certain specific spaces, such as the compressor compartment 160 or air duct of the refrigerator 10, which is conducive to improving the installation position of the gas processing device 200. diversity.
  • the air-permeable area 212 a is disposed on a hemispherical surface of the casing 210 . That is to say, the area of the air-permeable area 212 a does not exceed the area of the hemispherical surface of the casing 210 . In this way, a part of the spherical surface can be used to contact the external gas of the casing 210, so that the first electrode plate 220 can process specific substances in the gas, and the other part of the spherical surface can be used to release substances produced by electrochemical reactions without interfering with each other.
  • the second electrode plate 240 is opposite to the first electrode plate 220 and is disposed in the central section plane of the casing 210 .
  • the central sectional plane of the housing 210 is the section with the largest internal area of the housing 210 , which can provide a relatively wide layout space for the second electrode plate 240 and increase the surface area of the second electrode plate 240 .
  • the plate surface of the second electrode plate 240 can be circular, and its diameter is the same as the diameter of the sphere of the housing 210, so that it is just arranged at the central sectional plane of the housing 210, so that the second electrode plate 240 can be positioned on the spherical surface.
  • the largest plate surface area is obtained in the casing 210, thereby comprehensively improving the electrochemical reaction rate of the two plates.
  • the ventilation area 212a is an opening or a through hole arranged in an array.
  • the gas permeable region 212a is an opening
  • the circumferential inner side of the opening provides a "window” for gas to pass through.
  • the gas permeable region 212a is a through hole
  • the circumferential inner side of each through hole provides a "window” for gas to pass through.
  • the first electrode plate 220 is disposed inside the air-permeable area 212a and covers the air-permeable area 212a.
  • “inside the air-permeable area 212 a ” refers to the side of the air-permeable area 212 a facing the electrolytic chamber 214 . That is to say, the first electrode plate 220 does not protrude from the casing 210 , which can protect the first electrode plate 220 and prevent it from being damaged due to bumping.
  • the first electrode plate 220 may be mounted to the air-permeable area 212a of the casing 210 by any connection means such as clamping, screwing, and bonding.
  • the first electrode plate 220 can also cover the outside of the air-permeable area 212a, which can reduce the difficulty of assembly to a certain extent.
  • the air-permeable region 212a is an opening
  • the first electrode plate 220 may be disposed on the circumferential inner side of the opening.
  • the first electrode plate 220 has a waterproof and gas-permeable membrane.
  • a waterproof and gas-permeable membrane is disposed on the gas-permeable area 212a, and the first electrode plate 220 is disposed inside or outside of the waterproof and gas-permeable membrane.
  • the waterproof and breathable membrane can allow gas to pass through but prevent water from passing through.
  • the leakage of the electrolyte in the electrolytic chamber 214 can be prevented, and the electrochemical reaction of the gas to be treated at the first electrode plate 220 will not be affected.
  • the second electrode plate 240 can be a nickel plate, but not limited thereto;
  • the first electrode plate 220 can be a multilayer film structure, and can include a catalytic layer, a first waterproof and breathable layer, a current collecting layer and a second electrode plate from outside to inside. 2. Waterproof and breathable layer.
  • directional words such as "outside” and "inside” are relative to the actual use state of the first electrode plate 220, and relative to other structures of the first electrode plate 220, the catalytic layer is located on the top of the first electrode plate 220. Outermost so as to be in contact with the gas.
  • the catalytic layer can be a metal catalyst, wherein the metal can be a noble metal or a rare metal, for example, can be selected from the material group consisting of platinum, gold, silver, manganese and rubidium. Metal catalyst particles may be attached to carbon black particles.
  • the first waterproof and air-permeable layer and the second waterproof and air-permeable layer can be respectively waterproof and air-permeable membranes.
  • the current-collecting layer can be made into a corrosion-resistant metal current-collecting net, such as metal nickel, metal titanium, etc., so that it not only has better conductivity, corrosion resistance and support strength. And because the first electrode plate 220 itself has a certain strength, it can completely meet the sealing strength requirements of the electrolytic chamber 214. In addition, the first electrode plate 220 adopts two layers of waterproof and breathable layers, which can also effectively prevent leakage caused by electrolyte corrosion.
  • the electrolysis chamber 214 can hold an alkaline electrolyte, such as 0.1-8 mol/L NaOH or KOH, and its concentration can be adjusted according to actual needs.
  • an alkaline electrolyte such as 0.1-8 mol/L NaOH or KOH
  • the first electrode plate 220 is a cathode, which is used to connect to the negative pole of the power supply, so as to consume oxygen through electrochemical reaction under the action of electrolysis voltage.
  • oxygen in the air can undergo a reduction reaction at the first electrode plate 220 , namely: O 2 +2H 2 O+4e ⁇ ⁇ 4OH ⁇ .
  • the second electrode plate 240 is an anode, which is used to connect to the positive pole of the power supply, so as to provide reactants to the first electrode plate 220 through electrochemical reaction under the action of electrolysis voltage.
  • the OH ⁇ generated by the first electrode plate 220 can undergo an oxidation reaction at the second electrode plate 240 to generate oxygen, namely: 4OH ⁇ ⁇ O 2 +2H 2 O+4e ⁇ .
  • the gas processing device 200 can process the oxygen in the storage space of the refrigerator 10 to comply with the development concept of low-oxygen freshness preservation, prolong the shelf life of fruits and vegetables and other ingredients, and improve the freshness preservation performance of the refrigerator 10 .
  • this part of oxygen can be utilized, for example, it can be transported to the high oxygen space 140 of the refrigerator 10, which can improve the air conditioning capability of the refrigerator 10, making it simultaneously create Low-oxygen fresh-keeping atmosphere and high-oxygen fresh-keeping atmosphere.
  • the electrolysis chamber 214 may be provided with an exhaust port. Oxygen generated by the second electrode plate 240 may be exhausted through the exhaust port.
  • the power supply of the gas treatment device 200 may be a battery, or may be other power supply structures.
  • the refrigerator 10 can use the main control board to provide power to the gas processing device 200, or can use the power supply structure of other components inside the refrigerator 10 to provide power to the gas processing device 200.
  • the gas processing device 200 may further include a gas flow chamber 260 having a processing air duct 266 .
  • the airflow chamber 260 is disposed outside the air-permeable area 212a, and is formed with an assembly opening for the hemisphere of the casing 210 to be assembled therein.
  • the airflow chamber 260 can be roughly in the shape of a hollow cubic column, and the side length of its bottom surface can be the same as the diameter of the spherical housing 210 or can be larger than the diameter of the spherical housing 210, so that the hemisphere of the spherical housing 210 can extend into the airflow through the assembly port.
  • the inner space of the chamber 260 (for example, the processing air duct 266), and achieve a snap fit.
  • the hemisphere of the spherical housing 210 protruding into the airflow chamber 260 has the above-mentioned air-permeable area 212a.
  • An inlet 262 and an outlet 264 may be provided on the wall of the air handling duct 266.
  • the inlet 262 of the air handling duct 266 may be connected to the air outlet of the storage space, and the outlet 264 of the air handling duct 266 may be connected to the air return port of the storage space. In this way, an air circulation channel can be formed to improve the air conditioning efficiency of the storage space.
  • the polarities of the first electrode plate 220 and the second electrode plate 240 can be changed.
  • the first electrode plate 220 is an anode, which is used to connect to the positive pole of the power supply, so as to provide reactants to the first electrode plate 220 and generate oxygen by electrochemical reaction under the action of electrolysis voltage.
  • the second electrode plate 240 is a cathode, which is used to connect to the negative pole of the power supply, so as to consume oxygen through electrochemical reaction under the action of electrolysis voltage.
  • Oxygen in the air can undergo a reduction reaction at the second electrode plate 240 , namely: O 2 +2H 2 O+4e ⁇ ⁇ 4OH ⁇ .
  • the OH ⁇ generated by the second electrode plate 240 can undergo an oxidation reaction at the first electrode plate 220 to generate oxygen, namely: 4OH ⁇ ⁇ O 2 +2H 2 O+4e ⁇ .
  • the housing 210 in order to make the second electrode plate 240 contact with the oxygen in the air, the housing 210 further defines a ventilation chamber 216 located on the side of the electrolysis chamber 214 and connected to the outer space of the housing 210 . That is, gas in the space outside the casing 210 may enter the ventilation chamber 216 .
  • a ventilation hole may be opened on the ventilation chamber 216 to allow the gas in the outer space of the casing 210 to pass through.
  • the second electrode plate 240 is located between the ventilation chamber 216 and the electrolysis chamber 214 and separates the ventilation chamber 216 and the electrolysis chamber 214 .
  • the side of the second electrode plate 240 facing the ventilation chamber 216 can be in contact with the oxygen in the air, and use the oxygen as a reactant to perform an electrochemical reaction.
  • Oxygen generated when the first electrode plate 220 undergoes an electrochemical reaction can be discharged from the air-permeable region 212a.
  • the second electrode plate 240 may have a waterproof and gas-permeable membrane.
  • a waterproof gas-permeable membrane for separating the ventilation cavity 216 from the electrolytic cavity 214 is disposed inside the casing 210 , and the second electrode plate 240 is disposed on a side of the waterproof gas-permeable membrane facing the electrolytic cavity 214 .
  • Such an arrangement can reduce or avoid leakage of the electrolyte solution through the second electrode plate 240 to the ventilation cavity 216 .
  • FIG. 2 is a schematic structural view of a gas processing device 200 according to another embodiment of the present invention
  • FIG. 3 is a schematic cross-sectional view taken along the cutting line A-A of the gas processing device 200 shown in FIG. 2 .
  • the housing 210 can be transformed into other shapes.
  • the shell 210 may be in the shape of a hollow column, and its shell wall forms an arc-shaped curved surface 212 .
  • the cylindrical housing 210 is easy to install and fix, which is beneficial to reduce the installation difficulty of the gas processing device 200 .
  • the air-permeable area 212 a is disposed on a half side of the casing 210 .
  • the half side of the housing 210 refers to half of the side of the cylindrical housing 210 taken along the central longitudinal cut plane of the cylindrical housing 210 .
  • the first electrode plate 220 is disposed at the air-permeable region 212 a
  • the second electrode plate 240 is disposed in the central longitudinal cut plane of the cylindrical housing 210 .
  • the plate surface of the second electrode plate 240 can be in the shape of a cuboid, its width is equal to the diameter of the cylindrical shell 210, and its length is equal to the height of the cylindrical shell 210, so that it is just arranged at the central longitudinal section of the shell 210, so that Get maximum board area.
  • the housing 210 also defines a ventilation chamber located on the side of the electrolytic chamber 214 and connected to the outer space of the housing 210 216. That is, gas in the space outside the casing 210 may enter the ventilation chamber 216 .
  • a ventilation hole may be opened on the ventilation chamber 216 to allow the gas in the outer space of the casing 210 to pass through.
  • the second electrode plate 240 is located between the ventilation chamber 216 and the electrolysis chamber 214, and separates the ventilation chamber 216 and the electrolysis chamber 214.
  • the side of the second electrode plate 240 facing the ventilation chamber 216 can be in contact with the oxygen in the air, and use the oxygen as a reactant to perform an electrochemical reaction.
  • Oxygen generated when the first electrode plate 220 undergoes an electrochemical reaction can be discharged from the air-permeable region 212a.
  • the ventilation cavity 216 can be roughly in a tubular structure, on the one hand, it can expand the air intake area of the first electrode plate 220, and on the other hand, it can improve the simplicity of the sealing of the device.
  • Fig. 4 is a schematic structural diagram of a refrigerator 10 according to an embodiment of the present invention.
  • the refrigerator 10 may generally include a box body 100 and the gas treatment device 200 of any one of the above embodiments.
  • a storage space is formed in the box body 100 , for example, the storage space may be one or more of the hypoxic space 120 and the high oxygen space 140 .
  • the cathode of the gas treatment device 200 may be in gas flow communication with the hypoxic space 120, and reduce the oxygen content of the hypoxic space 120 through an electrochemical reaction.
  • the anode of the gas treatment device 200 may be in gas flow communication with the high oxygen space 140, and increase the oxygen content of the high oxygen space 140 through an electrochemical reaction.
  • an intake pipeline 312 and a gas return pipeline 314 between the cathode and the hypoxic space 120
  • the gas flow communication between the cathode and the hypoxic space 120 can be realized;
  • Oxygen delivery channels are provided between the anodes to realize gas flow communication between the anode and the high oxygen space 140 .
  • An airflow actuation device 320 may be connected to the air intake line 312 , for promoting the air flow formed from the hypoxic space 120 to flow through the air intake line 312 to the cathode, and return to the hypoxic space 120 after flowing through the return air line 314 .
  • the oxygen transport channel communicating between the electrolysis chamber 214 and the high oxygen space 140 for transporting the oxygen generated by the anode to the high oxygen space 140 .
  • the oxygen delivery channel may have a first end 420 connected to the exhaust port and a second end 440 connected to the nitrox space 140 .
  • the gas processing device 200 is disposed in the compressor chamber 160 of the refrigerator 10 .
  • the press chamber 160 has a certain reserved space, and the space utilization rate of the refrigerator 10 can be improved by using the reserved space to install the gas processing device 200 .
  • the gas treatment device 200 can exert high oxygen removal efficiency and oxygen production efficiency.
  • gas treatment device 200 can be selectively installed at any suitable position in the box body 100.
  • FIG. The location is limited.
  • the gas-permeable area 212a is provided on the arc-shaped curved surface 212, and the first electrode plate 220 is arranged to be in an arc-shaped
  • the shape of the curved surface 212 is adapted to the arc-shaped curved surface 212 plate, and the second electrode plate 240 is at least partially arranged in the electrolytic chamber 214 in the casing 210, so that the first electrode plate 220 and the external air of the casing 210 can be improved by using a limited volume. Therefore, the gas treatment device 200 has the advantages of high gas conditioning efficiency and small size.
  • the refrigerator can have the function of controlled atmosphere preservation while ensuring a relatively high volume ratio.

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Abstract

一种气体处理装置以及具有其的冰箱，气体处理装置包括：壳体，其具有弧状曲面；所述弧状曲面上开设有透气区域；所述壳体的内部限定出位于所述透气区域内侧的电解腔；第一电极板，其为与所述弧状曲面的外形相适配的弧状曲面板，并设置于所述透气区域处；以及第二电极板，与所述第一电极板极性相反，且至少部分地设置于所述电解腔内。采用上述方案，气体处理装置可以利用有限体积提高第一电极板与壳体外部气体的接触面积，因此，气体处理装置具备气调效率高且体积小型化的优点，冰箱可在保证较高容积率的同时具备气调保鲜功能。

Description

气体处理装置以及具有其的冰箱 技术领域
本发明涉及保鲜技术，特别是涉及气体处理装置以及具有其的冰箱。
背景技术
气调保鲜，其通过调节储存空间的气体比例来达到保鲜目的。为达到气调保鲜目的，冰箱通常需要安装气体处理装置，并利用气体处理装置对特定气体成分进行处理，从而提高或降低该特定气体成分的含量。
气体处理装置具有一定的体积，需要占用一定的安装空间，这会对冰箱的结构布局产生明显影响。然而若缩小气体处理装置的体积，又会影响气体处理装置与待处理气体之间的有效接触面积，降低气调效率。
本背景技术所公开的上述信息仅仅用于增加对本申请背景技术的理解，因此，其可能包括不构成本领域普通技术人员已知的现有技术。
发明内容
本发明的一个目的是要克服现有技术中的至少一个技术缺陷，提供一种气体处理装置以及具有其的冰箱。
本发明的一个进一步的目的是要使气体处理装置具备气调效率高且体积小型化的优点。
本发明的另一个进一步的目的是要使气体处理装置适于安装在特定空间，提高其安装位置的多样性。
根据本发明的一方面，提供了一种气体处理装置，壳体，其具有弧状曲面；弧状曲面上开设有透气区域；壳体的内部限定出位于透气区域内侧的电解腔；第一电极板，其为与弧状曲面的外形相适配的弧状曲面板，并设置于透气区域处；以及第二电极板，与第一电极板极性相反，且至少部分地设置于电解腔内。
可选地，壳体呈空心球形，其壳壁形成弧状曲面。
可选地，透气区域设置于壳体的半球面上。
可选地，第二电极板与第一电极板相对，并设置于壳体的中央剖切面内。
可选地，透气区域为开口或者阵列排布的通孔。
可选地，第一电极板设置于透气区域的内侧，并覆盖透气区域。
可选地，第一电极板具有防水透气膜；或者透气区域上设置有防水透气膜，第一电极板设置于防水透气膜的内侧或外侧。
可选地，第一电极板为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气；且第二电极板为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向第一电极板提供反应物。
可选地，第一电极板为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向第一电极板提供反应物并生成氧气；第二电极板为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气；壳体内还限定出位于电解腔一侧、且连通壳体外部空间的换气腔；且第二电极板位于换气腔与电解腔之间，并间隔换气腔和电解腔。
可选地，第二电极板具有防水透气膜；或者壳体内设置有用于间隔换气腔和电解腔的防水透气膜，第二电极板设置于防水透气膜面朝电解腔的一侧。
可选地，壳体呈空心柱状，其壳壁形成弧状曲面。
可选地，透气区域设置于壳体的半侧面上。
根据本发明的另一方面，还提供了一种冰箱，包括：如上述任一项的气体处理装置。
本发明的气体处理装置以及具有其的冰箱，由于气体处理装置的壳体具有弧状曲面，通过在该弧状曲面开设透气区域，并将第一电极板设置为与弧状曲面的外形相适配的弧状曲面板，且使第二电极板至少部分地设置于壳体内的电解腔，可以利用有限体积提高第一电极板与壳体外部气体的接触面积，因此，气体处理装置具备气调效率高且体积小型化的优点。
进一步地，本发明的气体处理装置以及具有其的冰箱，由于壳体可以呈空心球形，该独特外形使得气体处理装置适于安装在某些特定空间内，例如冰箱的压机仓或者风道等，这有利于提高气体处理装置安装位置的多样性。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具 体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的气体处理装置的示意性结构图；
图2是根据本发明另一实施例的气体处理装置的示意性结构图；
图3沿图2所示的气体处理装置的剖切线A-A截取的示意性剖视图；
图4是根据本发明一个实施例的冰箱的示意性结构图。
具体实施方式
图1是根据本发明一个实施例的气体处理装置200的示意性结构图。气体处理装置200一般性地可包括壳体210、第一电极板220和第二电极板240。本实施例的气体处理装置200通过进行电化学反应对流经其的气体中的特定物质成分进行处理，例如提高或降低特定物质成分的含量等。
壳体210具有弧状曲面212。例如，弧状曲面212可以为向壳体210外部拱起的曲面，或者可以为向壳体210内部凹陷的曲面。
弧状曲面212上开设有透气区域212a。透气区域212a允许气体通过。透气区域212a的形式不做限定，只要能够起到透气作用即可。例如，可以直接在弧状曲面212上开设开口，或者在弧状曲面212上造孔。
壳体210的内部限定出位于透气区域212a内侧的电解腔214。该电解腔214用于盛装电解液，从而使下述第一电极板220和第二电极板240浸于电解液。
第一电极板220为与弧状曲面212的外形相适配的弧状曲面212板，并设置于透气区域212a处。第一电极板220与弧状曲面212的外形相适配，使得第一电极板220可以贴合在弧状曲面212的透气区域212a处。例如，在一些实施例中，第一电极板220的弧度与弧状曲面212的弧度相同。
第二电极板240与第一电极板220极性相反，且至少部分地设置于电解腔214内，从而可以至少部分地浸于电解腔214所盛放的电解液。
本实施例的气体处理装置200，由于其壳体210具有弧状曲面212，通过在该弧状曲面212开设透气区域212a，并将第一电极板220设置为与弧状曲面212的外形相适配的弧状曲面212板，且使第二电极板240至少部分地设置于壳体210内的电解腔214，可以利用有限体积提高第一电极板220与壳体210外部气体的接触面积，因此，气体处理装置200具备气调效率高且体积小型化的优点。
相较于现有技术中的平直结构，本实施例的气体处理装置200增加了弧状曲面212结构，创造性地提供了具有独特形状和构造的新型气体处理装置200，这突破了冰箱10采用平直结构进行布局的思想桎梏。弧状曲面212的结构理念不仅仅体现在电极板上，更体现在壳体210上，如此一来，气体处理装置200能够凭借较小体积使第一电极板220与待处理的气体充分接触。
在一些可选的实施例中，壳体210呈空心球形，其壳壁形成弧状曲面212。也就是说，壳体210整体均为圆润的弧状曲面212，透气区域212a可以选择性地设置在任意部位，并且可以占据较为广大的面积，从而获得较大的透气面积。
由于壳体210可以呈空心球形，该独特外形使得气体处理装置200适于安装在某些特定空间内，例如冰箱10的压机仓160或者风道等，这有利于提高气体处理装置200安装位置的多样性。
在一些进一步的实施例中，透气区域212a设置于壳体210的半球面上。也就是说，透气区域212a的面积不超过壳体210的半球球面面积。如此一来，可以利用一部分球面接触壳体210外部气体，使得第一电极板220对气体中的特定物质成分进行处理，还可以利用另一部分球面释放电化学反应产生的物质，互不干扰。
在一些进一步的实施例中，第二电极板240与第一电极板220相对，并设置于壳体210的中央剖切面内。壳体210的中央剖切面为壳体210内部面积最大的截面，可以为第二电极板240提供较为广阔的布置空间，提高第二电极板240的板面面积。
例如，第二电极板240的板面可以呈圆形，其直径与壳体210的球体直径相同，以便恰好设置在壳体210的中央剖切面处，这样可使第二电极板240在该球形壳体210内获得最大的板面面积，从而综合提高两个极板的电化学反应速率。
在一些可选的实施例中，透气区域212a为开口或者阵列排布的通孔。例如，当透气区域212a为开口时，开口的周向内侧提供气体透过的“窗口”。当透气区域212a为通孔时，每个通孔的周向内侧提供气体透过的“窗口”。
在一些可选的实施例中，第一电极板220设置于透气区域212a的内侧，并覆盖透气区域212a。其中，“透气区域212a的内侧”是指透气区域212a朝向电解腔214的一侧。也就是说，第一电极板220并未凸出于壳体210， 这可以起到保护第一电极板220的作用，防止其因磕碰而发生损伤。
例如，第一电极板220可以通过卡接、螺接、粘接等任意连接方式安装至壳体210的透气区域212a。
当然，第一电极板220也可以覆盖在透气区域212a的外侧，这可以在一定程度上降低装配难度。或者当透气区域212a为开口时，第一电极板220可以设置在开口的周向内侧。
在一些可选的实施例中，第一电极板220具有防水透气膜。或者透气区域212a上设置有防水透气膜，第一电极板220设置于防水透气膜的内侧或外侧。防水透气膜可以允许气体通过而阻止水通过。
通过设置防水透气膜，可以防止电解腔214内的电解液泄露，且不影响待处理的气体在第一电极板220处参与电化学反应。
例如，第二电极板240可以为镍板，但不限于此；第一电极板220可以为多层膜结构，且由外至内地可包括催化层、第一防水透气层、集流层和第二防水透气层。其中，“外”“内”等方向性词语是相对于第一电极板220的实际使用状态而言的，相对于第一电极板220的其他结构而言，催化层位于第一电极板220的最外侧，以便与气体接触。
催化层可以采用金属催化剂，其中，金属可以为贵金属或稀有金属，例如可以选自由铂、金、银、锰和铷构成的物质组中。金属催化剂颗粒可以附着在炭黑颗粒上。第一防水透气层和第二防水透气层可以分别为防水透气膜。集流层可以制作成耐腐金属集流网，例如金属镍、金属钛等，以使其不仅具备较佳的导电性、防腐性和支撑强度。并且由于第一电极板220本身具有一定的强度，完全可以能够满足电解腔214的密封强度需求，另外第一电极板220采用两层防水透气层也能够有效地防止由于电解液腐蚀引起的泄漏。
电解腔214内可以盛装碱性电解液，例如0.1～8mol/L的NaOH或者KOH等，其浓度可以根据实际需要进行调整。
在一些可选的实施例中，第一电极板220为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气。例如，空气中的氧气可以在第一电极板220处发生还原反应，即：O 2+2H 2O+4e -→4OH -。
第二电极板240为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向第一电极板220提供反应物。第一电极板220产生 的OH -可以在第二电极板240处可以发生氧化反应，并生成氧气，即：4OH -→O 2+2H 2O+4e -。
采用上述结构，气体处理装置200能够对冰箱10储物空间的氧气进行处理，以顺应低氧保鲜的发展理念，延长果蔬等食材的保存期限，提高冰箱10的保鲜性能。
同时由于第二电极板240在进行电化学反应时生成氧气，这部分氧气可被加以利用，例如可以输送至冰箱10的高氧空间140，这可以提高冰箱10的气调能力，使其同时营造低氧保鲜气氛和高氧保鲜气氛。
为使第二电极板240产生的氧气顺利排出，电解腔214可以开设有排气口。第二电极板240产生的氧气可以经排气口排出。
气体处理装置200的电源可以为电池，或者可以为其他供电结构。例如，当气体处理装置200设置在冰箱10内时，冰箱10可以利用主控板向气体处理装置200提供电源，或者可以利用冰箱10内部其他部件的供电结构向气体处理装置200提供电源。
在一些可选的实施例中，气体处理装置200还可以包括气流室260，该气流室260具有处理风道266。气流室260设置在透气区域212a的外侧，并形成有供壳体210的半球装配其中的装配口。例如，该气流室260可以大致呈空心立方柱状，其底面边长与球形壳体210的直径可以相同或者可以大于球形壳体210的直径，使得球形壳体210的半球能通过装配口伸入气流室260的内部空间(例如处理风道266)，并实现卡接配合。
需要说明的是，伸入气流室260内的球形壳体210的半球具有上述透气区域212a。处理风道266的壁上可以开设有入口262和出口264，例如，处理风道266的入口262可连通储物空间的出气口，处理风道266的出口264可连通储物空间的回气口，如此可以形成气流循环通道，提高储物空间的气调效率。
当然，第一电极板220和第二电极板240的极性可以进行变换。例如，在一些实施例中，第一电极板220为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向第一电极板220提供反应物并生成氧气。第二电极板240为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气。空气中的氧气可以在第二电极板240处发生还原反应，即：O 2+2H 2O+4e -→4OH -。第二电极板240产生的OH -可以在 第一电极板220处可以发生氧化反应，并生成氧气，即：4OH -→O 2+2H 2O+4e -。
本实施例中，为使第二电极板240与空气中的氧气接触，壳体210内还限定出位于电解腔214一侧、且连通壳体210外部空间的换气腔216。即，壳体210外部空间的气体可以进入换气腔216。例如，换气腔216上可以开设有换气孔，以允许壳体210外部空间的气体通过。第二电极板240位于换气腔216与电解腔214之间，并间隔换气腔216和电解腔214。如此一来，第二电极板240面朝换气腔216的一侧可与空气中的氧气接触，并利用该氧气作为反应物进行电化学反应。第一电极板220进行电化学反应时生成的氧气可以从透气区域212a排出。
当第一电极板220为阳极、第二电极板240为阴极时，第二电极板240可以具有防水透气膜。或者壳体210内设置有用于间隔换气腔216和电解腔214的防水透气膜，第二电极板240设置于防水透气膜面朝电解腔214的一侧。如此设置，可以减少或避免电解液透过第二电极板240泄露至换气腔216。
图2是根据本发明另一实施例的气体处理装置200的示意性结构图，图3沿图2所示的气体处理装置200的剖切线A-A截取的示意性剖视图。
在一些可选的实施例中，壳体210可以变换为其他形状。例如壳体210可以呈空心柱状，其壳壁形成弧状曲面212。柱状壳体210易于安装固定，有利于降低气体处理装置200的安装难度。
在一些进一步的实施例中，透气区域212a设置于壳体210的半侧面上。壳体210的半侧面是指沿柱状壳体210的中央纵向剖切面截取的柱状壳体210的侧面的一半。第一电极板220设置在透气区域212a处，第二电极板240设置在柱状壳体210的中央纵向剖切面内。例如，第二电极板240的板面可以呈长方体形，其宽度等于柱状壳体210的直径，其长度等于柱状壳体210的高度，以便恰好设置在壳体210的中央纵向剖切面处，从而获得最大的板面面积。
当第一电极板220为阳极，而第二电极板240为阴极时，与以上实施例相同，壳体210内还限定出位于电解腔214一侧、且连通壳体210外部空间的换气腔216。即，壳体210外部空间的气体可以进入换气腔216。例如，换气腔216上可以开设有换气孔，以允许壳体210外部空间的气体通过。第二电极板240位于换气腔216与电解腔214之间，并间隔换气腔216和电解 腔214。如此一来，第二电极板240面朝换气腔216的一侧可与空气中的氧气接触，并利用该氧气作为反应物进行电化学反应。第一电极板220进行电化学反应时生成的氧气可以从透气区域212a排出。并且换气腔216可以大致呈管状结构，一方面可以扩大第一电极板220的进气面积，另一方面可以提升装置密封的简易型。
图4是根据本发明一个实施例的冰箱10的示意性结构图。
冰箱10一般性地可包括箱体100和以上任一实施例的气体处理装置200。其中，箱体100内形成有储物空间，例如，储物空间可以为低氧空间120和高氧空间140中的一个或多个。气体处理装置200的阴极可以与低氧空间120气流连通，并通过电化学反应降低低氧空间120的氧气含量。气体处理装置200的阳极可以与高氧空间140气流连通，并通过电化学反应提高高氧空间140的氧气含量。
例如，通过在阴极与低氧空间120之间设置进气管路312和回气管路314，可以实现阴极与低氧空间120之间的气流连通；通过在阳极所在的电解腔214与高氧空间140之间设置氧气输送通道，可以实现阳极与高氧空间140之间的气流连通。进气管路312处可连接有气流促动装置320，用于促使形成自低氧空间120流经进气管路312并流向阴极、且在流经回气管路314之后返回低氧空间120的气流。
还具有氧气输送通道连通于电解腔214与高氧空间140之间，用于将阳极生成的氧气输送至高氧空间140。例如，氧气输送通道可具有连接至排气口的第一端420和连接至高氧空间140的第二端440。
如图4所示，气体处理装置200设置在冰箱10的压机仓160内。压机仓160具有一定的预留空间，利用该预留空间安装气体处理装置200，可以提高冰箱10的空间利用率。借助压机仓160的温度环境，气体处理装置200可以发挥较高的除氧效率和产氧效率。
当然，气体处理装置200可以选择性地设置在箱体100内的任意合适位置，图4仅以设置在压机仓160的情况为例进行示意，但不应视为对气体处理装置200的安装位置进行限定。
本发明的气体处理装置200以及具有其的冰箱10，由于气体处理装置200的壳体210具有弧状曲面212，通过在该弧状曲面212开设透气区域212a，并将第一电极板220设置为与弧状曲面212的外形相适配的弧状曲面 212板，且使第二电极板240至少部分地设置于壳体210内的电解腔214，可以利用有限体积提高第一电极板220与壳体210外部气体的接触面积，因此，气体处理装置200具备气调效率高且体积小型化的优点。采用本发明的气体处理装置200，冰箱可在保证较高容积率的同时具备气调保鲜功能。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (13)

  1. 一种气体处理装置，包括：
    壳体，其具有弧状曲面；所述弧状曲面上开设有透气区域；所述壳体的内部限定出位于所述透气区域内侧的电解腔；
    第一电极板，其为与所述弧状曲面的外形相适配的弧状曲面板，并设置于所述透气区域处；以及
    第二电极板，与所述第一电极板极性相反，且至少部分地设置于所述电解腔内。
  2. 根据权利要求1所述的气体处理装置，其中，
    所述壳体呈空心球形，其壳壁形成所述弧状曲面。
  3. 根据权利要求2所述的气体处理装置，其中，
    所述透气区域设置于所述壳体的半球面上。
  4. 根据权利要求2所述的气体处理装置，其中，
    所述第二电极板与所述第一电极板相对，并设置于所述壳体的中央剖切面内。
  5. 根据权利要求1-4中任一项所述的气体处理装置，其中，
    所述透气区域为开口或者阵列排布的通孔。
  6. 根据权利要求1-4中任一项所述的气体处理装置，其中，
    所述第一电极板设置于所述透气区域的内侧，并覆盖所述透气区域。
  7. 根据权利要求1-4中任一项所述的气体处理装置，其中，
    所述第一电极板具有防水透气膜；或者
    所述透气区域上设置有防水透气膜，所述第一电极板设置于所述防水透气膜的内侧或外侧。
  8. 根据权利要求1-4中任一项所述的气体处理装置，其中，
    所述第一电极板为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气；且
    所述第二电极板为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向所述第一电极板提供反应物。
  9. 根据权利要求1-4中任一项所述的气体处理装置，其中，
    所述第一电极板为阳极，其用于与电源正极连接，以在电解电压的作用下通过进行电化学反应向所述第一电极板提供反应物并生成氧气；
    所述第二电极板为阴极，其用于与电源负极连接，以在电解电压的作用下通过进行电化学反应消耗氧气；且
    所述壳体内还限定出位于所述电解腔一侧、且连通所述壳体外部空间的换气腔；所述第二电极板位于所述换气腔与所述电解腔之间，并间隔所述换气腔和所述电解腔。
  10. 根据权利要求9所述的气体处理装置，其中，
    所述第二电极板具有防水透气膜；或者
    所述壳体内设置有用于间隔所述换气腔和所述电解腔的防水透气膜，所述第二电极板设置于所述防水透气膜面朝所述电解腔的一侧。
  11. 根据权利要求1所述的气体处理装置，其中，
    所述壳体呈空心柱状，其壳壁形成所述弧状曲面。
  12. 根据权利要求11所述的气体处理装置，其中，
    所述透气区域设置于所述壳体的半侧面上。
  13. 一种冰箱，包括：
    如权利要求1-12中任一项所述的气体处理装置。
PCT/CN2022/134341 2022-01-29 2022-11-25 气体处理装置以及具有其的冰箱 WO2023142643A1 (zh)

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JP3137188B1 (ja) * 1999-09-24 2001-02-19 智 赤澤 食品保存処理方法及び装置
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WO2021190006A1 (zh) * 2020-03-24 2021-09-30 合肥美的电冰箱有限公司 保鲜装置及冰箱
CN217876675U (zh) * 2022-01-29 2022-11-22 青岛海尔电冰箱有限公司 气体处理装置以及具有其的冰箱

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CN86204116U (zh) * 1986-06-16 1987-09-12 姜万兴 保鲜机
JP3137188B1 (ja) * 1999-09-24 2001-02-19 智 赤澤 食品保存処理方法及び装置
CN210292481U (zh) * 2019-04-17 2020-04-10 佛山市顺德区阿波罗环保器材有限公司 氧气分离装置和冰箱
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WO2021190006A1 (zh) * 2020-03-24 2021-09-30 合肥美的电冰箱有限公司 保鲜装置及冰箱
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CN217876675U (zh) * 2022-01-29 2022-11-22 青岛海尔电冰箱有限公司 气体处理装置以及具有其的冰箱

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