WO2022242241A1 - 冰箱及其电解除氧装置 - Google Patents

冰箱及其电解除氧装置 Download PDF

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Publication number
WO2022242241A1
WO2022242241A1 PCT/CN2022/075523 CN2022075523W WO2022242241A1 WO 2022242241 A1 WO2022242241 A1 WO 2022242241A1 CN 2022075523 W CN2022075523 W CN 2022075523W WO 2022242241 A1 WO2022242241 A1 WO 2022242241A1
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WIPO (PCT)
Prior art keywords
electrolytic
composite plate
cathode composite
deoxygenation device
plate
Prior art date
Application number
PCT/CN2022/075523
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English (en)
French (fr)
Inventor
赵弇锋
刘浩泉
费斌
刘茴茴
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 WO2022242241A1 publication Critical patent/WO2022242241A1/zh

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/32—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/32—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
    • A23L3/325—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect by electrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • F25D23/00—General constructional features
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/104—Oxygen

Definitions

  • the invention relates to refrigerating and freezing technology, in particular to a refrigerator and an electrolytic deoxygenation device thereof.
  • the prior art there is a refrigerator with deoxygenation function, which utilizes the principle of electrolysis to electrolyze the air introduced into the deoxygenation device to separate the oxygen and leave or discharge the nitrogen into the storage room of the refrigerator. Achieve freshness.
  • the electrolysis chamber of the oxygen removal device is provided with a waterproof and breathable membrane to prevent electrolyte leakage and at the same time ensure that external air can enter the electrolysis chamber for electrolytic reaction.
  • the electrolysis reaction requires the use of a strong alkaline electrolyte, so the oxygen removal device only uses a waterproof and breathable membrane to seal the electrolysis chamber, which is not only difficult to withstand the corrosion of the electrolyte, but also easy to leak and poor in practicability.
  • An object of the present invention is to overcome at least one defect in the prior art, and provide a refrigerator and an electrolytic deoxygenation device thereof.
  • Another further object of the present invention is to fix the distance between the cathode composite plate and the anode plate by means of a separator.
  • Yet another further object of the present invention is to fix the cathode composite plate at the opening of the casing.
  • the present invention provides an electrolytic deoxygenation device for separating oxygen in air flowing therethrough through an electrolytic reaction, the electrolytic deoxygenation device comprising:
  • the cathode composite plate is arranged at the opening to define together with the casing a liquid storage chamber for containing the electrolyte, and the cathode composite plate is configured to electrolyze the oxygen in the air flowing through it to generate negative ions, and allow the negative ions to permeate The electrolyte that passes through the cathode composite plate and enters the liquid storage chamber.
  • the housing is flat;
  • the opening is opened on the wider side of the housing.
  • the electrolytic deoxygenation device also includes:
  • the anode plate is spaced apart from the cathode composite plate in the liquid storage chamber, configured to oxidize the negative ions in the electrolyte to oxygen, and discharge the liquid storage chamber to separate the oxygen in the air flowing through the electrolytic deoxygenation device.
  • anode plate is arranged in parallel with the cathode composite plate.
  • the distance between the anode plate and the cathode composite plate is configured to be between 5mm and 10mm.
  • the electrolytic deoxygenation device also includes:
  • the separator is arranged in the liquid storage chamber and is located between the cathode composite plate and the anode plate.
  • a plurality of protrusions are formed on the side of the separator facing the anode plate, and the protrusions are in contact with the anode plate to separate the cathode.
  • the composite plate and the anode plate prevent the short circuit of the electrolytic deoxidizer.
  • the electrolytic deoxygenation device also includes:
  • the fixing component is arranged on the outside of the cathode composite plate and is configured to fix the cathode composite plate at the opening.
  • the fixing component also includes:
  • the metal frame is attached to the outer side of the cathode composite plate, and the metal frame protrudes outward to form an enclosing part;
  • the supporting member is arranged on the outside of the metal frame, and has an outer ring and an inner ring located inside the outer ring, the outer ring is fixedly connected to the housing, an insertion groove is formed on the inner side of the inner ring, and the surrounding part extends into the insertion In the groove, the metal frame and cathode composite plate are fixed at the opening.
  • reinforcing ribs are provided between the outer ring and the inner ring and inside the inner ring to fix the outer ring and the inner ring.
  • the cathode composite plate includes a catalytic layer, a first waterproof and air-permeable layer, a conductive layer and a second waterproof and air-permeable layer arranged sequentially from the inside to the outside.
  • the present invention also provides a refrigerator, including any one of the above-mentioned electrolytic deoxygenation devices.
  • the cathode composite plate is arranged at the opening of the casing, and jointly defines the liquid storage cavity with the casing, and the cathode composite plate is used to seal the liquid storage chamber. Since the cathode composite plate itself has a certain Strength, so it can fully meet the sealing strength requirements of the liquid storage chamber, not only can ensure the sealing effect at the opening of the shell, but also can withstand the corrosion of strong alkaline electrolyte, which improves the service life of the electrolytic oxygen removal device.
  • the separator is arranged in the liquid storage chamber and is located between the cathode composite plate and the anode plate, and a plurality of protrusions are formed on the side of the separator facing the anode plate.
  • the starting part is in contact with the anode plate, and the cathode composite plate is attached to the side of the separator away from the raised part to form a preset gap between the cathode composite plate and the anode plate, which not only ensures the oxygen removal efficiency of the electrolytic deoxidizer , It also improves the safety of the electrolytic deoxygenation device.
  • the cathode composite plate is fixed at the opening of the housing through the fixing assembly, the metal frame is in direct contact with the cathode composite plate, and the support member is covered on the metal frame.
  • the metal frame surrounds
  • the outer ring of the support is fixedly connected with the casing, and the metal frame can be fixed and positioned by the support, so that the metal frame presses the cathode composite plate.
  • FIG. 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention
  • Fig. 2 is an exploded view of a refrigerator according to an embodiment of the present invention, wherein the cabinet is hidden;
  • Fig. 3 is an exploded view of a refrigerator according to another embodiment of the present invention, wherein the cabinet is hidden;
  • Fig. 4 is the schematic diagram of the electrolytic deoxygenation device according to one embodiment of the present invention.
  • Fig. 5 is an exploded view of the cathode composite plate in the electrolytic oxygen removal device according to one embodiment of the present invention.
  • Fig. 6 is an exploded view of an electrolytic deoxidizer according to an embodiment of the present invention.
  • Fig. 7 is an enlarged view of place A of Fig. 6;
  • Fig. 8 is a schematic diagram of a support in an electrolytic deoxidizer according to an embodiment of the present invention.
  • Fig. 9 is an enlarged view of B in Fig. 8 .
  • FIG. 1 is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention
  • FIG. 2 is an exploded view of the refrigerator 1 according to an embodiment of the present invention, wherein the cabinet 10 is hidden.
  • the present invention provides a refrigerator 1 , which may generally include a box body 10 and a door body 20 .
  • the box body 10 may include an outer shell and a plurality of liners 40 , the outer shell is located at the outermost side of the overall refrigerator 1 to protect the entire refrigerator 1 .
  • a plurality of inner bladders 40 are wrapped by the shell, and the space between the outer shells is filled with thermal insulation material (forming a foam layer), so as to reduce the outward heat dissipation of the inner bladders 40.
  • Each liner 40 can define a forward-open storage space, and the storage space can be configured as a refrigerator, a freezer, a temperature-changing room, etc., and the number and functions of the specific storage spaces can be configured according to prior needs .
  • the door body 20 is movably arranged in front of the inner container 40 to open and close the storage space of the inner container 40.
  • the door body 20 can be set on one side of the front of the box body 10 in a hinged manner, and can be opened and closed in a pivotal manner. Closed storage space.
  • FIG. 3 is an exploded view of a refrigerator 1 according to another embodiment of the present invention, wherein the box body 10 is hidden.
  • the refrigerator 1 may further include a drawer assembly 30 , which may be disposed in the inner container 40 , and the user may open and close the drawer assembly 30 by pulling to get food therein.
  • the drawer assembly 30 may also include a cylinder body 32 and a drawer body 34, the cylinder body 32 may be directly fixedly installed in one of the liners 40, the inside of the drawer body 34 defines a storage space, and the drawer body 34 slides
  • the rail assembly 36 is drawably connected in the cylinder body 32 .
  • the refrigerator 1 can also include an electrolytic deoxygenation device 100, the electrolytic deoxygenation device 100 can be arranged on the inner container 40 or the drawer assembly 30, and the electrolytic reaction separates the flow through Oxygen in the air above it, and nitrogen stays in the storage space of inner container 40 or drawer body 34, realizes fresh-keeping storage to food.
  • the electro-deoxygenation device 100 can be arranged on the outer rear of the inner tank 40 .
  • the rear wall of the inner container 40 can offer a plurality of ventilation holes 42 leading out the air therein, and the electrolytic deoxygenation device 100 can be fixedly arranged at the ventilation holes 42 to suck the air in the inner container 40 into it, and Oxygen is separated from the air and discharged from the inner container 40, which reduces the oxygen content of the air in the inner container 40 and improves the freshness preservation performance of the food.
  • the electro-deoxygenation device 100 can also be arranged on the outside rear of the drawer assembly 30 .
  • a plurality of ventilation holes 42 may be opened on the rear wall of the cylinder body 32 of the drawer assembly 30 , and the electrolytic deoxygenation device 100 may be disposed at the ventilation holes 42 .
  • a recessed portion 342 is formed at a position opposite to the ventilation hole 42 on the rear wall of the drawer body 34 , so that the air of the drawer body 34 is guided out from the ventilation hole 42 .
  • the electro-deoxygenation device 100 can also arrange the electro-deoxygenation device 100 at other positions of the inner container 40 or the drawer assembly 30 after knowing the technical solution of this embodiment.
  • the positions on the side wall, bottom wall or top wall of the inner container 40, the top wall or the front wall of the inner cylinder of the drawer assembly 30 are not listed here.
  • FIG. 4 is a schematic diagram of an electrolytic deoxidation device 100 according to an embodiment of the present invention
  • FIG. 5 is an exploded view of the cathode composite plate 120 in the electrolytic deoxidation device 100 according to an embodiment of the present invention
  • FIG. 6 is an exploded view of an electrolytic deoxygenation device 100 according to an embodiment of the present invention.
  • the electrolytic deoxygenation device 100 may further include a casing 110 and a cathode composite plate 120 .
  • the casing 110 has an opening, and the cathode composite plate 120 is arranged at the opening to electrolyze the oxygen in the air flowing through it to generate negative ions, and allow the negative ions to pass through the cathode composite plate and enter the electrolyte in the liquid storage chamber.
  • the cathode composite plate 120 and the casing 110 can also jointly define a liquid storage chamber for containing the electrolyte. That is to say, the cathode composite plate 120 in this embodiment can be directly used as one of the walls of the housing 110 to seal the liquid storage chamber.
  • the housing 110 is hollow, and there are liquid replenishment ports 112 for filling electrolyte and exhaust ports 114 for exhausting oxygen.
  • the cathode composite plate 120 can be composed of a catalytic layer 122, a first waterproof and breathable layer 124, a conductive layer 126 and a second waterproof and breathable layer 128 arranged sequentially from the inside to the outside.
  • the "from the inside to the outside" can be understood from the inside of the casing 110 to the outside.
  • the catalyst layer 122 can use noble metal or rare metal catalyst, such as metal platinum, metal gold, metal silver, metal manganese or metal rubidium and so on.
  • the first waterproof and gas-permeable layer 124 and the second waterproof and gas-permeable layer 128 can be waterproof gas-permeable membranes, so that the electrolyte cannot seep out from the liquid storage chamber, and air can enter through the first waterproof and gas-permeable layer 124 and the second waterproof and gas-permeable layer 128 Reservoir.
  • the conductive layer 126 can be made into a corrosion-resistant metal current collector, such as metal nickel, metal titanium, etc., so that it not only has better conductivity, corrosion resistance and supporting strength.
  • the oxygen removal device in the prior art only uses a waterproof and gas-permeable membrane to seal the electrolytic chamber, which is not only difficult to withstand the corrosion of the electrolyte, but also easy to leak, and has poor practicability.
  • the electrolytic deoxygenation device 100 of this embodiment adopts the cathode composite plate 120 as a whole as a wall surface of the casing 110 to jointly define a liquid storage chamber with the casing 110, and utilizes the cathode composite plate 120 Plate 120 seals the reservoir chamber. And because the cathode composite plate 120 itself has a certain strength, it can fully meet the sealing strength requirements of the liquid storage chamber.
  • the cathode composite plate 120 adopts two layers of waterproof and breathable layers (ie, the first waterproof and breathable layer 124 and the second waterproof and breathable layer 128). It is also possible to effectively prevent leakage due to electrolyte corrosion.
  • the housing 110 can also be configured as a flat shape, and the opening is opened on a wider side of the housing 110 . Since the cathode composite plate 120 covers the opening, the larger the opening, the larger the area of the cathode composite plate 120 , and the larger the contact area between the cathode composite plate 120 and the air, which improves the electrolysis efficiency of the electrolytic oxygen removal device 100 . In addition, setting the housing 110 in a flat shape can also shorten the width of the electrolytic deoxidizer 100, reduce its occupied thickness, and save space.
  • the electrolytic deoxidizer 100 may further include an anode plate 140 , and the anode plate 140 may also be made of a material with strong corrosion resistance and reducibility, such as metal foamed nickel, nickel mesh, and the like.
  • the anode plate 140 can be disposed in the liquid storage chamber at intervals from the cathode composite plate 120 , and has an anode power supply terminal 142 protruding from the casing 110 and connected to the positive pole of an external power supply. During electrolysis, the anode plate 140 is used to reduce the negative ions in the electrolytic solution to oxygen, and discharge it out of the liquid storage chamber, so as to separate the oxygen in the air flowing through the electrolytic deoxygenation device 100 .
  • the air in the storage space of the drawer assembly 30 or the liner 40 contacts the cathode composite plate 120 located at the opening of the housing 110 through the ventilation hole 42, and the oxygen in the air undergoes a reduction reaction at the cathode composite plate 120, namely : O 2 +2H 2 O+4e - ⁇ 4OH - ; O 2 +H 2 O+2e - ⁇ HO 2 +OH - ; as the reduction reaction on the cathode composite plate 120 proceeds, the negative ion OH - produced by electrolysis can penetrate Through the cathode composite plate 120, it enters the electrolyte in the liquid storage chamber, and an oxidation reaction occurs on the anode plate 140, namely: 4OH - ⁇ O 2 +2H 2 O + 4e - ; HO 2 +OH - ⁇ O 2 +H 2 O+2e - , finally generate oxygen on the anode plate 140, and discharge the generated oxygen from the exhaust port 114 on the casing 110, so as
  • the anode plate 140 and the cathode composite plate 120 can also be arranged in parallel to increase their relative area and promote the electrolysis reaction to proceed forward.
  • the inventor has found through many experiments that: setting the distance between the anode plate 140 and the cathode composite plate 120 within the range of 5mm to 10mm (such as 5mm, 7mm or 10mm, etc.), can avoid the anode plate 140 and the cathode composite plate. Too large a distance between the plates 120 leads to low reaction efficiency, and it can prevent the oxygen generated by the anode plate 140 from being unable to be discharged in time due to too small a distance, which affects the reaction process. The technical effect has been verified in trial products.
  • the electrolytic deoxygenation device 100 may further include a separator 130, which is disposed in the liquid storage chamber and between the cathode composite plate 120 and the anode plate 140, configured to separate The cathode composite plate 120 and the anode plate 140 are used to prevent the electrolytic deoxygenation device 100 from short circuiting.
  • a separator 130 which is disposed in the liquid storage chamber and between the cathode composite plate 120 and the anode plate 140, configured to separate The cathode composite plate 120 and the anode plate 140 are used to prevent the electrolytic deoxygenation device 100 from short circuiting.
  • the electrolytic deoxygenation device 100 of this embodiment adopts a separator 130 between the cathode composite plate 120 and the anode plate 140 to avoid the above situation, which not only ensures the deoxygenation efficiency of the electrolytic deoxygenation device 100, but also improves the The safety of the electrolytic deoxygenation device 100.
  • a plurality of protrusions 132 are formed on the side of the separator 130 facing the anode plate 140 , the protrusions 132 are in contact with the anode plate 140 , and the cathode composite plate 120 is attached to the separator 130 away from One side of the protrusion 132 is used to form a predetermined gap between the cathode composite plate 120 and the anode plate 140 , thereby separating the cathode composite plate 120 from the anode plate 140 .
  • FIG. 7 is an enlarged view of A in FIG. 6,
  • FIG. 8 is a schematic diagram of the support member 154 in the electrolytic oxygen removal device 100 according to an embodiment of the present invention, and
  • FIG. 9 is an enlarged view of B in FIG. picture.
  • the electro-deoxygenation device 100 may further include a fixing component 150 disposed on the outside of the cathode composite plate 120 and configured to fix the cathode composite plate 120 at the opening.
  • the fixing assembly 150 may further include a metal frame 152 and a support 154 .
  • the metal frame 152 is attached to the outer side of the cathode composite plate 120 , and the metal frame 152 protrudes outward to form a surrounding portion 152 a.
  • the support member 154 is arranged on the outside of the metal frame 152, and has an outer ring 1542 and an inner ring 1544 located inside the outer ring 1542.
  • the outer ring 1542 is fixedly connected with the housing 110, and an insertion groove 1544a is formed on the inner side of the inner ring 1544.
  • the surrounding portion 152a extends into the insertion slot 1544a to fix the metal frame 152 and the cathode composite plate 120 at the opening.
  • the metal frame 152 is in direct contact with the cathode composite plate 120, and the metal frame 152 can play the role of pressing the cathode composite plate 120, and the cathode power supply terminal 152b of the cathode composite plate 120 can also be provided on the metal frame 152 , to connect to an external power supply.
  • the surrounding portion 152 a is formed on the metal frame 152 and extends toward the outside, so as to be inserted into the insertion slot 1544 a of the inner ring 1544 of the support member 154 , thereby positioning the metal frame 152 . Since the outer ring 1542 of the support 154 is fixedly connected to the housing 110, when the surrounding portion 152a of the metal frame 152 is inserted into the insertion slot 1544a of the support 154, the metal frame 152 can be fixed and positioned by the support 154, Furthermore, the metal frame 152 is pressed against the cathode composite plate 120 .
  • reinforcing ribs 1546 are formed between the outer ring 1542 and the inner ring 1544 of the support member 154 and inside the inner ring 1544 for fixing and connecting the outer ring 1542 and the inner ring 1542 of the support member 154 .
  • ring 1544 and shape the outer ring 1542 and inner ring 1544 of the support member 154 to prevent it from being deformed by external force.
  • the anode plate 140 can be fixedly arranged in the housing 110;
  • the composite plate 120 is pressed against the other side of the separator 130 to prevent the cathode composite plate 120 from contacting the anode plate 140; then the metal frame 152 is pressed against the outside of the cathode composite plate 120, and the support member 154 is covered on the metal frame 152
  • the outside of the outer ring 1542 of the support member 154 is fixedly connected with the housing 110, and the surrounding part 152a of the metal frame 152 is inserted into the insertion groove 1544a to complete the positioning and fixing, and then the outer ring 1542 of the support 154 and the inner Adhesives (such as polyurethane PU glue, epoxy resin AB glue, etc.) are arranged between the rings 1544, and glue is applied to the area between the cathode composite board 120 and the shell to achieve final packaging; finally through the liquid replenishment port on the shell 110 112 filling electrolyte
  • Adhesives such as polyurethane PU

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

一种冰箱及其电解除氧装置，该电解除氧装置用于通过电解反应分离流经其上的空气中的氧气，包括壳体和阴极复合板，壳体具有一开口，阴极复合板设置于开口处，以与壳体共同限定出用于盛装电解液的储液腔，并且阴极复合板配置成电解流经其上的空气中的氧气以生成负离子，并允许负离子透过阴极复合板进入储液腔内的电解液。本发明的电解除氧装置利用阴极复合板密封壳体，不仅可以保证壳体开口处的密封效果，又能够经受住强碱性电解液的腐蚀，提高了电解除氧装置的使用寿命。

Description

冰箱及其电解除氧装置 技术领域
本发明涉及冷藏冷冻技术，特别是涉及一种冰箱及其电解除氧装置。
背景技术
现有技术中出现了一种具备除氧功能的冰箱，其利用电解原理对导入除氧装置内部的空气进行电解，以将氧气分离出，将氮气留在或者排入冰箱的储物间室内，实现保鲜。具体地，该除氧装置的电解室上设置有防水透气膜，以防止电解液泄露，同时可以保证外部空气能够进入电解室进行电解反应。
但是，通常情况下，该电解反应需要采用强碱性的电解液，因此该除氧装置仅采用防水透气膜对电解室进行密封，不仅难以经受电解液的腐蚀，而且容易泄露，实用性差。
发明内容
本发明的一个目的旨在克服现有技术中的至少一个缺陷，提供一种冰箱及其电解除氧装置。
本发明一个进一步的目的是要利用阴极复合板密封电解除氧装置。
本发明另一个进一步的目的是要利用分隔件固定阴极复合板和阳极板之间的间距。
本发明又另一个进一步的目的是将阴极复合板固定在壳体的开口处。
特别地，本发明提供了一种电解除氧装置，用于通过电解反应分离流经其上的空气中的氧气，电解除氧装置包括：
壳体，其具有一开口；和
阴极复合板，设置于开口处，以与壳体共同限定出用于盛装电解液的储液腔，并且阴极复合板配置成电解流经其上的空气中的氧气以生成负离子，并允许负离子透过阴极复合板进入储液腔内的电解液。
进一步地，壳体为扁平状；且
开口开设于壳体较宽的侧面。
进一步地，电解除氧装置还包括：
阳极板，与阴极复合板间隔地设置于储液腔内，配置成将电解液内的负离子氧化为氧气，并排出储液腔，以将流经电解除氧装置的空气中的氧气分 离出。
进一步地，阳极板与阴极复合板平行设置；且
阳极板与阴极复合板的间距配置成5mm至10mm之间。
进一步地，电解除氧装置还包括：
分隔件，设置于储液腔内，并位于阴极复合板与阳极板之间，分隔件上朝向阳极板的一侧形成有多个凸起部，凸起部抵触于阳极板上，以分隔阴极复合板与阳极板，防止电解除氧装置短路。
进一步地，电解除氧装置还包括：
固定组件，设置于阴极复合板的外侧，配置成将阴极复合板固定于开口处。
进一步地，固定组件还包括：
金属边框，贴靠于阴极复合板的外侧，并且金属边框朝外凸起形成有围立部；和
支撑件，设置于金属边框的外侧，并且其具有外圈和位于外圈内部的内圈，外圈与壳体固定连接，内圈的内侧形成有插接槽，围立部伸入至插接槽内，以将金属边框和阴极复合板固定于开口处。
进一步地，外圈与内圈之间以及内圈的内部均设置有加强筋，以固定外圈与内圈。
进一步地，阴极复合板包括由内向外依次设置的催化层、第一防水透气层、导电层和第二防水透气层。
特别地，本发明还提供了一种冰箱，包括上述任一项的电解除氧装置。
本发明的电解除氧装置中，阴极复合板设置于壳体的开口处，并且与壳体共同限定出储液腔，利用阴极复合板对储液腔进行密封，由于阴极复合板本身具有一定的强度，因此完全能够满足储液腔的密封强度需求，不仅可以保证壳体开口处的密封效果，又能够经受住强碱性电解液的腐蚀，提高了电解除氧装置的使用寿命。
进一步地，本发明的电解除氧装置中，分隔件设置于储液腔内，并位于阴极复合板与阳极板之间，分隔件上朝向阳极板的一侧形成有多个凸起部，凸起部抵触于阳极板上，阴极复合板贴靠于分隔件背离凸起部的一侧，以在阴极复合板与阳极板之间形成预设间隙，既保证了电解除氧装置的除氧效率，又提高了电解除氧装置的安全性。
进一步地，本发明的电解除氧装置中，阴极复合板通过固定组件将其固定在壳体的开口处，金属边框与阴极复合板直接接触，支撑件覆盖在金属边框上，当金属边框的围立部插进支撑件的插接槽时，支撑件的外圈与壳体固定连接，金属边框可以由支撑件固定和定位，进而使得金属边框压紧阴极复合板。
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冰箱的示意图；
图2是根据本发明一个实施例的冰箱的分解图，其中隐去了箱体；
图3是根据本发明另一个实施例的冰箱的分解图，其中隐去了箱体；
图4是根据本发明一个实施例的电解除氧装置的示意图；
图5是根据本发明一个实施例的电解除氧装置中阴极复合板的分解图；
图6是根据本发明一个实施例的电解除氧装置的分解图；
图7是图6的A处放大图；
图8是根据本发明一个实施例的电解除氧装置中支撑件的示意图；
图9是图8中B处放大图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
请参见图1和图2，图1是根据本发明一个实施例的冰箱1的示意图，图2是根据本发明一个实施例的冰箱1的分解图，其中隐去了箱体10。本发明提供一种冰箱1，其一般性地可以包括箱体10和门体20。
箱体10可以包括外壳和多个内胆40，外壳位于整体冰箱1的最外侧，以保护整个冰箱1。多个内胆40被外壳包裹，并且与外壳之间的空间中填充 有保温材料(形成发泡层)，以降低内胆40向外散热。每个内胆40可以限定出向前敞开的储物空间，并且储物空间可以被配置成冷藏室、冷冻室、变温室等等，具体的储物空间的数量和功能可以根据预先的需求进行配置。
门体20可动地设置于内胆40的前方，以开闭内胆40的储物空间，例如门体20可以通过铰接的方式设置箱体10前部的一侧，通过枢转的方式开闭储物空间。
请参见图1和图3，图3是根据本发明另一个实施例的冰箱1的分解图，其中隐去了箱体10。在一些实施例中，该冰箱1还可以包括抽屉组件30，抽屉组件30可以设置于内胆40内，用户可以通过抽拉的方式开闭抽屉组件30，以拿取其内的食物。
具体地，该抽屉组件30还可以包括筒体32和抽屉本体34，筒体32可以直接固定安装于其中一个内胆40内，抽屉本体34的内部限定出储物空间，并且抽屉本体34通过滑轨组件36可抽拉地连接于筒体32内。
请参见图2和图3，在一些实施例中，该冰箱1还可以包括电解除氧装置100，该电解除氧装置100可以设置于内胆40或者抽屉组件30上，通过电解反应分离流经其上的空气中的氧气，并将氮气留在内胆40或抽屉本体34的储物空间内，实现对食物的保鲜储存。
请参见图2，例如，该电解除氧装置100可以设置于内胆40的外部后方。内胆40的后壁上可以开设多个将其内的空气导出的通风孔42，电解除氧装置100可以固定设置于通风孔42处，以将内胆40内的空气吸入其内，并将氧气从空气中分离出来排出内胆40，这样降低了内胆40内的空气含氧量，提高了食物的保鲜性能。
请参见图3，又例如，该电解除氧装置100还可以设置于抽屉组件30的外部后方。抽屉组件30的筒体32的后壁上可以开设多个通风孔42，电解除氧装置100可以设置于通风孔42处。对应地，抽屉本体34的后壁与通风孔42相对的位置处形成凹陷部342，以便于抽屉本体34的空气从通风孔42导出。
当然，本领域技术人员在知晓本实施例的技术方案后还可以将该电解除氧装置100设置于内胆40或者抽屉组件30的其他位置。例如，内胆40的侧壁、底壁或者顶壁上，抽屉组件30的内筒顶壁或前壁等位置，在此不一一列举。
请参见图4至图6，图4是根据本发明一个实施例的电解除氧装置100的示意图，图5是根据本发明一个实施例的电解除氧装置100中阴极复合板120的分解图，图6是根据本发明一个实施例的电解除氧装置100的分解图。
在一些实施例中，该电解除氧装置100还可以包括壳体110和阴极复合板120。壳体110上具有开口，阴极复合板120设置于该开口处，以电解流经其上的空气中的氧气，以生成负离子，并允许负离子透过阴极复合板进入储液腔内的电解液。并且阴极复合板120还可以与壳体110共同限定出用于盛装电解液的储液腔。也即，本实施例的阴极复合板120可以直接作为壳体110的其中一个壁面，用于密封储液腔。
请参见图4，在一些具体的实施例中，壳体110为中空结构，并且其上开设有用于加注电解液的补液口112和用于排出氧气的排气口114。
请参见图5，阴极复合板120可以由从内向外依次设置的催化层122、第一防水透气层124、导电层126和第二防水透气层128构成，所述“由从内向外”可以理解成由壳体110的内部向外部的方向。催化层122可以采用贵金属或稀有金属催化剂，例如金属铂、金属金、金属银、金属锰或金属铷等。第一防水透气层124和第二防水透气层128可以为防水透气膜，以使得电解液无法从储液腔渗出，而空气可以透过第一防水透气层124和第二防水透气层128进入储液腔。导电层126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。
如背景技术部分所述，现有技术的除氧装置仅采用防水透气膜对电解室进行密封，不仅难以经受电解液的腐蚀，而且容易泄露，实用性差。
为了克服上述现有技术中的缺陷，本实施例的电解除氧装置100采用将阴极复合板120整体地作为壳体110的一个壁面，以与壳体110共同限定出储液腔，利用阴极复合板120对储液腔进行密封。并且由于阴极复合板120本身具有一定的强度，完全能够满足储液腔的密封强度需求，另外阴极复合板120采用两层防水透气层(即第一防水透气层124和第二防水透气层128)也能够有效地防止由于电解液腐蚀引起的泄漏。
请参见图2至图6，在一些实施例中，壳体110还可以被设置成为扁平状，开口开设于壳体110较宽的侧面。由于阴极复合板120覆盖于开口处，因此开口越大，阴极复合板120的面积越大，这样阴极复合板120与空气的接触面积越大，提高了电解除氧装置100的电解效率。此外，壳体110设置 成扁平状还能够缩短电解除氧装置100的宽度，减少其占用厚度，节省空间。
请参见图6，在一些实施例中，电解除氧装置100还可以包括阳极板140，阳极板140还可以采用耐蚀性和还原性强的材料制成，例如金属泡沫镍、镍网等。
阳极板140可以与阴极复合板120间隔地设置于储液腔内，其上具有从壳体110内穿出并与外部电源正极连接的阳极供电端子142。在电解时，阳极板140用于将电解液内的负离子还原为氧气，并排出储液腔，以将流经电解除氧装置100的空气中的氧气分离出。
在工作时，抽屉组件30或者内胆40的储物空间中的空气通过通风孔42与位于壳体110开口处的阴极复合板120接触，空气中的氧气在阴极复合板120发生还原反应，即：O 2+2H 2O+4e -→4OH -；O 2+H 2O+2e -→HO 2+OH -；随着阴极复合板120上的还原反应进行，电解出的负离子OH -能够透过阴极复合板120进入储液腔内的电解液内，并在阳极板140上发生氧化反应，即：4OH -→O 2+2H 2O+4e -；HO 2+OH -→O 2+H 2O+2e -，最终在阳极板140上生成氧气，并将生成的氧气从壳体110上的排气口114排出，实现将空气中的氧气分离出，进而降低了储物空间的含氧量，保证了食物的保鲜性。
在一些实施例中，阳极板140与阴极复合板120还可以平行设置，以提高其相对面积，促进电解反应正向进行。
此外，发明人通过多次试验发现：将阳极板140与阴极复合板120之间的距离设置成5mm至10mm范围内(例如5mm、7mm或者10mm等)，既能够避免因阳极板140与阴极复合板120的间距过大而导致反应效率低，又能够避免因间距过小而导致阳极板140产生的氧气无法及时排出，影响反应进程，其技术效果已经在试制产品中得到验证。
请参见图6，在一些实施例中，该电解除氧装置100还可以包括分隔件130，分隔件130设置于储液腔内，并位于阴极复合板120与阳极板140之间，配置成分隔阴极复合板120与阳极板140，以防止电解除氧装置100短路。
由于阳极板140与阴极复合板120在电解时极性相反，并且两者之间的间距较小，因此阳极板140与阴极复合板120有可能在吸引力的作用下靠近，甚至直接接触，这既改变了原始设计的阴阳极间距参数，又有可能出现短路情况。因此，本实施例的电解除氧装置100采用在阴极复合板120与阳极板 140之间设置分隔件130，以避免出现上述情况，既保证了电解除氧装置100的除氧效率，又提高了电解除氧装置100的安全性。
请参见图6，具体地，分隔件130上朝向阳极板140的一侧形成有多个凸起部132，凸起部132抵触于阳极板140上，阴极复合板120贴靠于分隔件130背离凸起部132的一侧，以在阴极复合板120与阳极板140之间形成预设间隙，进而将阴极复合板120与阳极板140分隔开。
请参见图6至图9，图7是图6的A处放大图，图8是根据本发明一个实施例的电解除氧装置100中支撑件154的示意图，图9是图8中B处放大图。
在一些实施例中，该电解除氧装置100还可以包括固定组件150，固定组件150设置于阴极复合板120的外侧，配置成将阴极复合板120固定于开口处。
具体地，该固定组件150还可以包括金属边框152和支撑件154。金属边框152贴靠于阴极复合板120的外侧，并且金属边框152朝外凸起形成有围立部152a。支撑件154设置于金属边框152的外侧，并且其具有外圈1542和位于外圈1542内部的内圈1544，外圈1542与壳体110固定连接，内圈1544的内侧形成有插接槽1544a，围立部152a伸入至插接槽1544a内，以将金属边框152和阴极复合板120固定于开口处。
在本实施例中，金属边框152与阴极复合板120直接接触，金属边框152可以起到压紧阴极复合板120的作用，并且金属边框152上还可以设置有阴极复合板120的阴极供电端子152b，以与外部电源相连。
围立部152a形成于金属边框152并朝向外部延伸，以插进支撑件154的内圈1544插接槽1544a内，进而对金属边框152进行定位。又由于支撑件154的外圈1542与壳体110固定连接，因此当金属边框152的围立部152a插进支撑件154的插接槽1544a时，金属边框152可以由支撑件154固定和定位，进而使得金属边框152压紧阴极复合板120。
请参见图8，在一些实施例中，支撑件154的外圈1542与内圈1544之间以及内圈1544的内部还形成有加强筋1546，用于固定连接支撑件154的外圈1542与内圈1544，并且对支撑件154的外圈1542与内圈1544进行定型，防止其受外力变形。
在组装本实施例的电解除氧装置100时，首先可以将阳极板140固定设 置于壳体110内；再将分隔件130具有凸起部132的一侧压紧在阳极板140上；将阴极复合板120压紧在分隔件130的另一侧，以防止阴极复合板120和阳极板140接触；之后将金属边框152压紧在阴极复合板120的外侧，将支撑件154覆盖在金属边框152的外侧，使其外圈1542与壳体110固定连接，并且使金属边框152的围立部152a伸入至插接槽1544a内，完成定位和固定，然后在支撑件154的外圈1542与内圈1544之间设置有粘黏剂(例如聚氨酯PU胶、环氧树脂AB胶等)，对阴极复合板120和外壳之间的区域打胶，实现最终封装；最后通过壳体110上的补液口112加注电解液，完成组装。
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 (10)

  1. 一种电解除氧装置，用于通过电解反应分离流经其上的空气中的氧气，所述电解除氧装置包括：
    壳体，其具有一开口；和
    阴极复合板，设置于所述开口处，以与所述壳体共同限定出用于盛装电解液的储液腔，并且所述阴极复合板配置成电解流经其上的空气中的氧气以生成负离子，并允许所述负离子透过所述阴极复合板进入所述储液腔内的电解液。
  2. 根据权利要求1所述的电解除氧装置，其中
    所述壳体为扁平状；且
    所述开口开设于所述壳体较宽的侧面。
  3. 根据权利要求1所述的电解除氧装置，还包括：
    阳极板，与所述阴极复合板间隔地设置于所述储液腔内，配置成将所述电解液内的所述负离子氧化为氧气，并排出所述储液腔，以将流经所述电解除氧装置的空气中的氧气分离出。
  4. 根据权利要求3所述的电解除氧装置，其中
    所述阳极板与所述阴极复合板平行设置；且
    所述阳极板与所述阴极复合板的间距配置成处于5mm至10mm之间。
  5. 根据权利要求3所述的电解除氧装置，还包括：
    分隔件，设置于所述储液腔内，并位于所述阴极复合板与所述阳极板之间，所述分隔件上朝向所述阳极板的一侧形成有多个凸起部，所述凸起部抵触于所述阳极板上，以分隔所述阴极复合板与所述阳极板，防止所述电解除氧装置短路。
  6. 根据权利要求1所述的电解除氧装置，还包括：
    固定组件，设置于所述阴极复合板的外侧，配置成将所述阴极复合板固定于所述开口处。
  7. 根据权利要求6所述的电解除氧装置，其中所述固定组件还包括：
    金属边框，贴靠于所述阴极复合板的外侧，并且所述金属边框朝外凸起形成有围立部；和
    支撑件，设置于所述金属边框的外侧，并且其具有外圈和位于所述外圈内部的内圈，所述外圈与所述壳体固定连接，所述内圈的内侧形成有插接槽，所述围立部伸入至所述插接槽内，以将所述金属边框和所述阴极复合板固定于所述开口处。
  8. 根据权利要求7所述的电解除氧装置，其中
    所述外圈与所述内圈之间以及所述内圈的内部均设置有加强筋，以固定所述外圈与所述内圈。
  9. 根据权利要求1所述的电解除氧装置，其中
    所述阴极复合板包括由内向外依次设置的催化层、第一防水透气层、导电层和第二防水透气层。
  10. 一种冰箱，包括根据权利要求1至9中任一项所述的电解除氧装置。
PCT/CN2022/075523 2021-05-20 2022-02-08 冰箱及其电解除氧装置 WO2022242241A1 (zh)

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