WO2021190006A1 - 保鲜装置及冰箱 - Google Patents
保鲜装置及冰箱 Download PDFInfo
- Publication number
- WO2021190006A1 WO2021190006A1 PCT/CN2020/138706 CN2020138706W WO2021190006A1 WO 2021190006 A1 WO2021190006 A1 WO 2021190006A1 CN 2020138706 W CN2020138706 W CN 2020138706W WO 2021190006 A1 WO2021190006 A1 WO 2021190006A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fresh
- keeping device
- frame
- oxygen
- module
- Prior art date
Links
- 239000001301 oxygen Substances 0.000 claims abstract description 99
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 99
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000009423 ventilation Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 3
- 230000004308 accommodation Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000006392 deoxygenation reaction Methods 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 36
- 229910052757 nitrogen Inorganic materials 0.000 description 18
- 235000012055 fruits and vegetables Nutrition 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 238000004321 preservation Methods 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 3
- 241001148470 aerobic bacillus Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000007954 hypoxia Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 230000005070 ripening Effects 0.000 description 3
- 230000009758 senescence Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- -1 hydroxide ions Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- 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
- 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
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
Definitions
- the invention relates to the field of refrigeration and freezing, in particular to a fresh-keeping device and a refrigerator.
- the existing refrigerator vacuum fresh-keeping technology uses a vacuum pump to extract air in the containing space to reduce the oxygen content and enhance the fresh-keeping effect.
- the initial oxygen content of the gas in the normal containment space is about 20%, and the nitrogen content is about 80%. Assuming that the initial oxygen content is about 2L in a 10L space.
- a vacuum pump is used to extract air in the containing space, oxygen and nitrogen are simultaneously pumped away.
- 1L of oxygen is pumped away, 4L of nitrogen is pumped away at the same time.
- the present invention aims to solve at least one of the technical problems existing in the prior art.
- the present invention proposes a fresh-keeping device, which can form a low-oxygen negative pressure state in the storage space, and can maintain a low-oxygen negative pressure state in the space for a period of time.
- the present invention also provides a refrigerator with the above-mentioned preservation device.
- the fresh-keeping device is used in a refrigerator and includes: a frame provided with an accommodating space, one side of the frame is provided with an opening, and a wall of the frame is provided with ventilation holes, The vent is in communication with the containing space; the drawer can enter through the opening and be accommodated in the containing space to cooperate with the frame to form a closed containing space; the deoxygenation module is arranged on the frame At the vent hole, the oxygen in the containing space is consumed to make the containing space form a low-oxygen negative pressure state.
- the fresh-keeping device has at least the following beneficial effects: the fresh-keeping device of the embodiment of the present invention adopts a deaeration module, so that the deaeration module is in contact with the air in the containing space, and the oxygen in the air is in contact with the deaeration module.
- the reaction is replaced to the outside, so as to obtain a low-oxygen environment in the space.
- the low-oxygen environment can effectively inhibit the respiration of fruits and vegetables, reduce the consumption of organic substances, and the low-oxygen environment can meet the most basic survival requirements of fruit and vegetable cells. Maintain the vitality of cells, conducive to the preservation of fruits and vegetables.
- hypoxia can also inhibit the activity of certain enzymes, inhibit the production of ethylene, delay the ripening and senescence process, and maintain the freshness of the fruit for a long time.
- the deoxygenation module will only react with oxygen. , The nitrogen will not be consumed and transferred. Since the initial oxygen content of the gas in the containing space is about 20%, and the nitrogen content is about 80%, assuming that the initial oxygen is about 2L in a 10L space, when 1L of oxygen is consumed, there will be 1L of oxygen and remaining in the space.
- the fresh-keeping device of the embodiment of the present invention has low structural strength requirements, and there is no need to adopt a strengthened design for the overall structure of the fresh-keeping device, thereby reducing material costs and reducing Volume loss; and, when the oxygen in the containing space is gradually consumed, due to the relative sealing in the containing space, the speed of external air penetration into the containing space can be slowed down, so that the containing space can maintain a low oxygen and negative pressure state for a period of time ; Moreover, compared to the fresh-keeping device that uses a vacuum pump to extract air from the containing space and reduce the oxygen content, the fresh-keeping device of the embodiment of the present invention discards the use of a vacuum pump, and has the characteristics of low noise. Therefore, the fresh-keeping device of the embodiment of the present invention Mute.
- the oxygen removal module is an electrochemical oxygen removal module, and the electrochemical oxygen removal module is configured to consume oxygen in the receiving space through an electrolysis reaction, so that the receiving space Form a state of low oxygen and negative pressure.
- a pressure relief valve is provided on the drawer.
- the frame includes: an inner frame, the receiving space is provided in the inner frame, the opening is provided on one side of the inner frame, and the ventilation hole is provided in the inner frame.
- the frame is away from the side wall of the opening; the outer frame is arranged on the inner frame, and the oxygen removal module is arranged between the inner frame and the outer frame.
- the deoxygenation module is detachably arranged on the inner frame through a fixing structure.
- the fixing structure includes: a connecting column arranged on the side wall of the inner frame, and a connecting hole is arranged in the connecting column; Position, the connecting column penetrates the stepped hole; the fixed connecting piece passes through the stepped hole and is threadedly connected with the connecting hole.
- a sealing strip is provided between the opening and the drawer to ensure the tightness between the opening and the drawer.
- the electrochemical oxygen removal module is provided with a water addition hole.
- a plurality of the ventilation holes are provided, and the plurality of ventilation holes are arranged in an array on the side wall of the frame.
- the refrigerator according to the embodiment of the second aspect of the present invention includes the fresh-keeping device of any one of the embodiments of the first aspect of the present invention.
- the refrigerator provided by the present invention includes the fresh-keeping device according to any one of the above-mentioned embodiments, and therefore, has the fresh-keeping device according to any one of the above-mentioned embodiments All the beneficial effects of, I will not list them one by one here.
- Fig. 1 is a three-dimensional exploded schematic diagram of a fresh-keeping device according to an embodiment of the present invention
- FIG. 2 is a three-dimensional exploded schematic diagram of another view direction of the fresh-keeping device according to the embodiment of the present invention after the outer frame is removed;
- Figure 3 is a cross-sectional view of the fresh-keeping device according to an embodiment of the present invention.
- FIG. 4 is a rear view of the deaeration module of the fresh-keeping device according to the embodiment of the present invention.
- FIG. 5 is a three-dimensional schematic diagram of the deoxygenation module of the fresh-keeping device according to an embodiment of the present invention.
- Fig. 6 is a schematic diagram of a refrigerator according to an embodiment of the present invention.
- Fresh-keeping device 200 frame 210, inner frame 211, outer frame 212, accommodating space 213, opening 214, ventilation hole 215;
- Deaerator module 300 water filling hole 310, exhaust hole 320;
- orientation description involved such as up, down, front, back, left, right, etc. indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, but In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be configured and operate in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
- the fresh-keeping device 200 of the embodiment of the present invention is used in a refrigerator 100.
- the refrigerator 100 can refer to a broad sense of refrigeration storage equipment, such as refrigerators, electric freezers, refrigerating cabinets, and so on.
- the fresh-keeping device 200 includes a frame 210, a drawer 220, and a deaeration module 300.
- the frame 210 is provided with an accommodation space 213, an opening 214 is provided on one side of the frame 210, and a vent 215 is provided on the wall of the frame 210. 215 communicates with the accommodating space 213.
- the drawer 220 can enter and be accommodated in the accommodating space 213 through the opening 214, so that the drawer 220 and the frame 210 cooperate to form a closed accommodating space for storing fruits and vegetables and other food materials.
- the oxygen in the containing space can enter the deaerator module through the vent hole, and the deaerator module consumes the oxygen in the containing space and reduces the oxygen content in the containing space, thereby forming a low oxygen negative pressure environment in the containing space.
- the fresh-keeping device 200 of the embodiment of the present invention adopts the deaeration module 300 to make the deaeration module 300 contact the air in the containing space 213, and the oxygen in the air reacts with the deaeration module 300 and is replaced to the outside.
- a low-oxygen environment is obtained in the containment space.
- the low-oxygen environment can effectively inhibit the respiration of fruits and vegetables and reduce the consumption of organic substances.
- the low-oxygen environment can meet the most basic survival requirements of fruit and vegetable cells, maintain cell vitality, and facilitate the preservation of fruits and vegetables. It can also effectively inhibit the breeding and reproduction of aerobic bacteria and anaerobic bacteria, and prevent microbial spoilage of fruits and vegetables.
- hypoxia can also inhibit the activity of certain enzymes, inhibit the production of ethylene, delay the ripening and senescence process, and maintain the freshness of the fruit for a long time.
- the deoxygenation module will only react with oxygen. , The nitrogen will not be consumed and transferred. Since the initial oxygen content of the gas in the containing space is about 20%, and the nitrogen content is about 80%, assuming that the initial oxygen is about 2L in a 10L space, when 1L of oxygen is consumed, there will be 1L of oxygen and remaining in the space. With 8L nitrogen, the negative pressure formed in the containing space is relatively small, about -0.1 bar.
- the fresh-keeping device of the embodiment of the present invention Compared with the method of using a vacuum pump to remove oxygen, the negative pressure value of the containing space of the fresh-keeping device of the embodiment of the present invention that achieves the same oxygen content is small. Therefore, the fresh-keeping device of the embodiment of the present invention has low structural strength requirements, and there is no need to adopt a strengthened design for the overall structure of the fresh-keeping device, thereby reducing material costs and reducing volume loss; and, when the oxygen in the containing space is gradually consumed, due to The accommodation space is relatively sealed, which can slow down the penetration of external air into the accommodation space, thereby maintaining a low-oxygen and negative pressure state in the accommodation space for a period of time; and, compared to the use of a vacuum pump to extract the air in the accommodation space, reduce the oxygen content and keep fresh In terms of the device, the fresh-keeping device of the embodiment of the present invention abandons the use of a vacuum pump and has the characteristic of low noise. Therefore, the fresh-keeping device of the embodiment of the present invention is more silent
- the oxygen removal module 300 is an electrochemical oxygen removal module, and the electrochemical oxygen removal module is configured to consume oxygen in the containing space through an electrolysis reaction, so that a low oxygen negative pressure state is formed in the containing space 213.
- a cathode electrode and an anode electrode are arranged inside the oxygen removal module 300.
- the cathode electrode is in contact with the air through a waterproof and breathable membrane.
- the working principle of the oxygen removal module is that oxygen in the air penetrates through the waterproof and breathable membrane.
- the nitrogen in the air is blocked by the waterproof and breathable membrane outside the electrolyte tank, and electrochemically reacts with the water under the action of the cathode to generate hydroxide ions, and at the same time, an electrochemical reaction occurs at the anode.
- the root ions react to generate water and oxygen, thereby replacing the oxygen in the air, and exhausting the oxygen removal module 300 through the vent hole, thereby reducing the oxygen content inside the drawer, thereby achieving freshness preservation.
- the initial oxygen content of the gas in the containing space is about 20%, and the nitrogen content is about 80%.
- the initial oxygen content of the gas in the containing space is about 20%, and the nitrogen content is about 80%.
- about 2L when 1L of oxygen is consumed, 1L of oxygen and 8L of nitrogen are left in the space.
- the negative pressure formed in the containing space is small, about -0.1bar, which requires low structural strength and does not require the overall structure of the preservation device.
- the use of enhanced design reduces material costs and volume loss; and the use of electrochemical oxygen removal modules to achieve the purpose of reducing oxygen content and enhancing the preservation effect, as the electrochemical oxygen removal modules produce no noise, so the use of this
- the fresh-keeping device of the deaeration module 300 is quieter.
- the deoxygenation module 300 can also use an oxygen adsorption device, etc., and the remaining gas after adsorbing oxygen returns to the containing space. It can also form a low oxygen environment while the nitrogen is not consumed and transferred, and forms in the containing space.
- the negative pressure is small, the structural strength is low, and there is no need to adopt a strengthened design for the overall structure of the fresh-keeping device, thereby reducing material costs and reducing volume loss.
- the electrochemical oxygen removal module is provided with a water addition hole 310 and an exhaust hole 320. Because the electrochemical oxygen removal module is in operation, the oxygen gas discharged from the exhaust hole 320 is Part of the water will be taken away, resulting in the gradual decrease of the electrolyte in the electrolyte tank of the electrochemical deaeration module, which will affect the normal operation of the deaeration module, and the customer needs to replenish the water regularly.
- the electrolyte tank can be filled with water through the water addition hole 310, so that the liquid level in the electrolyte tank can be maintained Within the normal range.
- the frame 210 includes an inner frame 211 and an outer frame 212, wherein the accommodating space 213 is provided in the inner frame 211, the opening 214 is provided on one side of the inner frame 211, and the ventilation hole 215
- the inner frame 211 is arranged away from the side wall of the opening 214; the outer frame 212 is arranged on the inner frame 211, and the oxygen removal module 300 is arranged between the inner frame 211 and the outer frame 212, so that the freshness keeping device 200 has a compact structure and improves the freshness keeping device. 200 effective use of space.
- the deaeration module 300 is detachably installed on the inner frame 211 through the fixing structure 400 to facilitate the maintenance of the deaeration module 300 and the fresh-keeping device 200.
- the fixing structure 400 includes a connecting column 410, a stepped hole 420, and a fixing connecting piece (not shown in the figure).
- the connecting column 410 is arranged on the side wall of the inner frame 211.
- the connecting column 410 may be integrally formed with the inner frame 211, or may be separately arranged from the inner frame 211. When arranged separately from the inner frame 211, it is connected
- the column 410 is fixed on the inner frame by fixing parts such as screws, bolts, etc., a connecting hole 411 is provided in the connecting column 410;
- the stepped hole 420 is provided at the corresponding position of the deaerator module 300, and the stepped hole 420 includes large holes 421 with different diameters. Connecting with the small hole 422, the large hole 421 and the small hole 422, the connecting post 410 can be arranged in the large hole 421;
- the fixed connection piece may be a screw, bolt or other connection piece.
- a guide surface 423 is provided at the end of the stepped hole 420 to facilitate the insertion of the connecting post 410 into the corresponding stepped hole 420.
- the deaerator module 300 is detachably installed on the inner frame 211 through the above-mentioned fixing structure 400, thereby improving the reliability of the connection between the deaerator module 300 and the inner frame 211, and the assembly is simple, efficient, convenient, and small. It is difficult to assemble and improve the efficiency of assembly.
- the fixing structure can also directly adopt a structure in which screws or bolts cooperate with the threaded holes, which will not be described in detail here.
- a sealing strip 221 is provided between the opening 214 and the drawer 220 to ensure the sealing between the opening 214 and the drawer 220, and the sealing strip 221 can be provided on the inner frame 211
- the contour shape of the inner side of the end cover of the drawer 220 is compatible with the shape of the sealing strip 221.
- the sealing strip 221 can be modified polyvinyl chloride (PVC), vulcanized ethylene propylene diene rubber (EPDM) and thermoplastic ethylene propylene diene propylene rubber (EPDM/PP) rubber strip; the sealing strip 221 can also be set inside the end cover of the drawer 220 to facilitate the sealing between the opening 214 and the drawer 220.
- PVC polyvinyl chloride
- EPDM vulcanized ethylene propylene diene rubber
- EPDM/PP thermoplastic ethylene propylene diene propylene rubber
- a pressure relief valve (Not shown in the figure), when it is necessary to open the fresh-keeping device 200, first open the pressure relief valve to balance the air pressure in the fresh-keeping device 200 with the atmospheric pressure, thereby eliminating the negative pressure state of the containing space 213, so as to apply a smaller force That is, the purpose of the fresh-keeping device 200 can be opened; and when the pressure relief valve is opened, the sound of gas leakage can be heard, which improves the user experience.
- multiple ventilation holes 215 are provided, and the multiple ventilation holes 215 are arranged in an array on the side wall of the frame 210.
- the provision of multiple ventilation holes 215 can increase the storage space 213 and The oxygen transfer area between the deoxidizing modules 300 improves the deoxidizing efficiency of the deoxidizing modules 300.
- FIG. 6 is a refrigerator 100 according to an embodiment of the second aspect of the present invention, including the fresh-keeping device 200 provided in any one of the above embodiments.
- the fresh-keeping device 200 makes the deaeration module 300 contact the air in the containing space 213, and the oxygen in the air reacts with the deaeration module 300 and is replaced to the outside, thereby obtaining a low-oxygen environment in the space. It can effectively inhibit the respiration of fruits and vegetables, reduce the consumption of organic matter, and the low-oxygen environment can meet the most basic survival requirements of fruit and vegetable cells, can maintain the vitality of the cells, and is conducive to the preservation of fruits and vegetables.
- hypoxia can also inhibit the activity of certain enzymes, inhibit the production of ethylene, delay the ripening and senescence process, and maintain the freshness of the fruit for a long time.
- the deoxygenation module will only react with oxygen. , The nitrogen will not be consumed and transferred. Since the initial oxygen content of the gas in the containing space is about 20%, and the nitrogen content is about 80%, assuming that the initial oxygen is about 2L in a 10L space, when 1L of oxygen is consumed, there will be 1L of oxygen and remaining in the space.
- the negative pressure formed in the containing space is relatively small, about -0.1 bar.
- the negative pressure value of the containing space of the fresh-keeping device of the embodiment of the present invention that achieves the same oxygen content is small.
- the fresh-keeping device of the embodiment of the present invention has low structural strength requirements, and there is no need to adopt a strengthened design for the overall structure of the fresh-keeping device, thereby reducing material costs and reducing volume loss; and, when the oxygen in the containing space is gradually consumed, due to The accommodation space is relatively sealed, which can slow down the penetration of external air into the accommodation space, thereby maintaining a low oxygen and negative pressure state in the accommodation space for a period of time; and, compared to using a vacuum pump to extract the air in the accommodation space, reduce the oxygen content and keep fresh
- the fresh-keeping device of the embodiment of the present invention abandons the use of a vacuum pump and has the characteristic of low noise. Therefore, the fresh-keeping device of the embodiment of the present invention is more silent.
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- Physics & Mathematics (AREA)
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- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims (10)
- 一种保鲜装置,用于冰箱,包括:框架,设置有容纳空间,所述框架的一侧设置有开口,所述框架的壁上设有透气孔,所述透气孔与所述容纳空间连通;抽屉,能通过所述开口进入并收容于所述容纳空间中,以与所述框架配合形成密闭的收容空间;除氧模组,设置于所述框架的所述透气孔处,以消耗所述收容空间内部的氧气,使所述收容空间形成低氧负压状态。
- 根据权利要求1所述的保鲜装置,其中,所述除氧模组为电化学除氧模组,所述电化学除氧模组设置成通过电解反应消耗所述收容空间内部的氧气,以使所述收容空间内形成低氧负压状态。
- 根据权利要求1或2所述的保鲜装置,其中,所述抽屉上设置有泄压阀。
- 根据权利要求1或2所述的保鲜装置,其中,所述框架包括:内框架,所述容纳空间设置在所述内框架内,所述开口设置在所述内框架的一侧,所述透气孔设置在所述内框架远离所述开口的侧壁;外框架,设置在内框架上,所述除氧模组设置在所述内框架和所述外框架之间。
- 根据权利要求4所述的保鲜装置,其中,所述除氧模组通过固定结构可拆卸地设置在所述内框架上。
- 根据权利要求5所述的保鲜装置,其中,所述固定结构包括:连接柱,设置在所述内框架的侧壁,所述连接柱内设置有连接孔;阶梯孔,设置在所述除氧模组的对应位置,所述连接柱穿设于所述阶梯孔;固定连接件,穿过所述阶梯孔并与所述连接孔螺纹连接。
- 根据权利要求1所述的保鲜装置,其中,所述开口与所述抽屉之间设置有密封条,以保证所述开口与所述抽屉之间的密封性。
- 根据权利要求2所述的保鲜装置,其中,所述电化学除氧模组上设置有加水孔。
- 根据权利要求1所述的保鲜装置,其中,所述透气孔设置有多个,多个所述透气孔呈阵列设置在所述框架的所述侧壁。
- 一种冰箱,包括权利要求1至9中任一项所述的保鲜装置。
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CN116762915A (zh) * | 2022-03-07 | 2023-09-19 | 青岛海尔电冰箱有限公司 | 用于冰箱的氧气处理装置以及具有其的冰箱 |
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