CN110274425B - Air-conditioning fresh-keeping device for refrigerator - Google Patents
Air-conditioning fresh-keeping device for refrigerator Download PDFInfo
- Publication number
- CN110274425B CN110274425B CN201910654638.XA CN201910654638A CN110274425B CN 110274425 B CN110274425 B CN 110274425B CN 201910654638 A CN201910654638 A CN 201910654638A CN 110274425 B CN110274425 B CN 110274425B
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- Prior art keywords
- nitrogen
- air
- pipe
- fresh
- keeping
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 122
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 64
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 13
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012432 intermediate storage Methods 0.000 abstract description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 7
- 238000004321 preservation Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an air-conditioning fresh-keeping device for a refrigerator, and relates to the technical field of refrigerator fresh-keeping. The fresh-keeping device comprises a fresh-keeping chamber, an air-conditioning chamber and an exhaust chamber, wherein the fresh-keeping chamber is respectively connected with the air-conditioning chamber and the exhaust chamber through pipelines, an air inlet pipe, an air inlet valve, an oxygen-nitrogen separator, a nitrogen pipe, a nitrogen valve, a nitrogen collector and an inlet valve are arranged in the fresh-keeping chamber, the air inlet pipe is connected with the oxygen-nitrogen separator through the air inlet valve, the oxygen-nitrogen separator is connected with the nitrogen valve through the nitrogen pipe, the nitrogen valve is connected with the nitrogen collector, and the nitrogen collector is connected with the fresh-keeping chamber through the inlet valve. According to the invention, nitrogen-oxygen separation is carried out through the nitrogen-oxygen filtering membrane, nitrogen-oxygen filtration can be carried out at normal temperature, the nitrogen collector is used as a nitrogen intermediate storage device, and electromagnetic valves are respectively arranged at the upper position and the lower position of the nitrogen collector to control the flow direction of nitrogen, so that the air tightness of the fresh-keeping chamber is improved, and the air conditioning fresh-keeping effect is improved.
Description
Technical Field
The invention belongs to the technical field of refrigerator preservation, and particularly relates to an air-conditioning preservation device for a refrigerator.
Background
Along with the improvement of life quality, the consumer has higher and higher requirements on the preservation of stored foods, in particular to the color, taste and the like of the foods. The food can be stored for a long time in a low-temperature environment, and the storage time of the food is influenced by factors such as temperature and humidity, oxygen content of air in the food storage environment, bacteria and the like. The fresh-keeping technology adopted on the existing refrigerator can not well solve the food fresh-keeping problem. Although the vacuum preservation can solve the food preservation and storage problem, the vacuum preservation is used in the refrigerator, has high technical requirements, is complex in structure, is inconvenient for consumers to operate, and is not beneficial to popularization and application.
Disclosure of Invention
The invention aims to provide an air-conditioning fresh-keeping device for a refrigerator, which solves the problem that the existing refrigerator has single and limited fresh-keeping means.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an air-conditioning fresh-keeping device for a refrigerator, which is arranged on one side of a fresh-keeping chamber of the refrigerator, and comprises the fresh-keeping chamber, an air-conditioning chamber and an exhaust chamber, wherein one surface of the fresh-keeping chamber is connected with the air-conditioning chamber and the exhaust chamber;
the fresh-keeping chamber comprises a fresh-keeping liner and a fresh-keeping box, and the fresh-keeping box is arranged in the fresh-keeping liner;
an air inlet pipe, an air inlet valve, an oxygen-nitrogen separator, an oxygen pipe, a nitrogen valve, a nitrogen collector and an inlet valve are arranged in the air-conditioning chamber; the air inlet pipe is connected with the oxygen-nitrogen separator through the air inlet valve, the oxygen pipe is connected with the oxygen-nitrogen separator, and the oxygen-nitrogen separator and the nitrogen collector are sequentially connected through the nitrogen pipe and the nitrogen valve; the nitrogen collector is connected with the fresh-keeping chamber through an inlet valve;
an air outlet valve, an air pump and an exhaust pipe are arranged in the exhaust chamber; the air inlet hole of the air pump is connected with the fresh-keeping chamber through the air outlet valve, and the air outlet hole of the air pump is connected with the outside of the refrigerator through the exhaust pipe.
Preferably, the oxygen-nitrogen separator comprises a fixed seat, a bottom pipe, a top pipe, a filter core pipe, a push rod and a hydraulic rod, wherein the fixed seat is arranged on one surface inside the air-conditioning chamber, one surface of the fixed seat is connected with the bottom pipe, and the bottom pipe is sequentially connected with the filter core pipe and the top pipe; the push rod is arranged in the jacking pipe and is connected with the inner surface of the air conditioner chamber through a hydraulic rod; the peripheral side surface of the jacking pipe is connected with an air inlet valve; the peripheral side surface of the bottom tube is connected with an oxygen tube; the filter element is characterized in that a permeable membrane is arranged on one surface of the filter element pipe, and the peripheral side surface of the filter element pipe is connected with a nitrogen pipe.
Preferably, the permeable membrane is a nitrogen-oxygen separation membrane, and the top pipe and the bottom pipe are connected with the bottom surface of the air-conditioning chamber through supporting legs.
Preferably, the nitrogen collector comprises a limiting seat, a gas collecting tube, a drawing rod and a telescopic rod; one surface of the limiting seat is connected with the air-conditioning chamber, one surface of the limiting seat is connected with the gas collecting tube, the drawing rod is arranged in the gas collecting tube, the pull rod is connected with the inner surface of the air-conditioning chamber through a telescopic rod, and the peripheral side surface of the gas collecting tube is respectively connected with the nitrogen valve and the inlet valve.
Preferably, the air-conditioning fresh-keeping device further comprises an oxygen concentration detector, a power supply, a memory, a microprocessor and a control board, wherein a probe of the oxygen concentration detector is installed in the fresh-keeping chamber, and the power supply is respectively and electrically connected with the oxygen concentration detector, the memory, the microprocessor, the control board, an air inlet valve, an oxygen-nitrogen separator, a nitrogen valve, an inlet valve, an air outlet valve and an air pump; the microprocessor is respectively and electrically connected with the oxygen concentration detector, the control panel, the memory, the air inlet valve, the oxygen-nitrogen separator, the nitrogen valve, the inlet valve, the air outlet valve and the air pump; the power supply, the memory, the microprocessor and the control panel are integrated on the power supply, the memory, the microprocessor and the control panel of the refrigerator.
The invention has the following beneficial effects:
according to the invention, nitrogen-oxygen separation is carried out through the nitrogen-oxygen filtering membrane, nitrogen-oxygen filtration can be carried out at normal temperature, the nitrogen collector is used as a nitrogen intermediate storage device, and electromagnetic valves are respectively arranged at the upper position and the lower position of the nitrogen collector to control the flow direction of nitrogen, so that the air tightness of the fresh-keeping chamber is improved, and the air conditioning fresh-keeping effect is improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an air-conditioned fresh-keeping apparatus for a refrigerator according to the present invention;
FIG. 2 is a schematic diagram showing the internal structures of an air conditioning chamber and an exhaust chamber of the air conditioning and fresh-keeping device for a refrigerator according to the present invention;
FIG. 3 is a front view of an air-conditioning fresh-keeping apparatus for a refrigerator according to the present invention;
FIG. 4 is a schematic view of the cross-sectional structure A-A in FIG. 3;
fig. 5 is a partial enlarged view of a portion a in fig. 4.
In the drawings, the list of components represented by the various numbers is as follows:
1-fresh-keeping chamber, 2-air-regulating chamber, 3-exhaust chamber, 101-fresh-keeping liner, 102-fresh-keeping box, 201-air inlet pipe 202-air inlet valve, 203-oxygen-nitrogen separator, 204-oxygen pipe, 205-nitrogen pipe, 206-nitrogen valve, 207-nitrogen collector, 208-inlet valve, 301-air outlet valve, 302-air pump, 303-exhaust pipe, 2031-fixing seat, 2032-bottom pipe, 2033-top pipe, 2034-filter core pipe, 2035-push rod, 2071-limit seat, 2072-air collector and 2073-draw rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," "peripheral," "top," "bottom," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Embodiment one:
referring to fig. 1, the invention is an air-conditioning fresh-keeping device for a refrigerator, which is arranged on one side of a fresh-keeping chamber of the refrigerator and comprises a fresh-keeping chamber 1, an air-conditioning chamber 2 and an exhaust chamber 3, wherein one surface of the fresh-keeping chamber 1 is connected with the air-conditioning chamber 2 and the exhaust chamber 3.
As shown in fig. 2-5, the fresh-keeping chamber 1 comprises a fresh-keeping liner 101 and a fresh-keeping box 102, wherein the fresh-keeping box 102 is arranged in the fresh-keeping liner 101;
an air inlet pipe 201, an air inlet valve 202, an oxygen-nitrogen separator 203, an oxygen pipe 204, a nitrogen pipe 205, a nitrogen valve 206, a nitrogen collector 207 and an inlet valve 208 are arranged in the air-conditioning chamber 2; the air inlet pipe 201 is connected with the oxygen-nitrogen separator 203 through the air inlet valve 202, the oxygen pipe 204 is connected with the oxygen-nitrogen separator 203, and the oxygen-nitrogen separator 203 and the nitrogen collector 207 are sequentially connected through the nitrogen pipe 205 and the nitrogen valve 206; the nitrogen collector 207 is connected with the fresh food compartment 1 through an inlet valve 208;
an air outlet valve 301, an air pump 302 and an air outlet pipe 303 are arranged in the exhaust chamber 3; an air inlet hole of the air pump 302 is connected with the fresh-keeping chamber 1 through an air outlet valve 301, and an air outlet hole of the air pump 302 is connected with the outside of the refrigerator through an air outlet pipe 303.
The oxygen-nitrogen separator 203 comprises a fixed base 2031, a bottom pipe 2032, a top pipe 2033, a filter element pipe 2034, a push rod 2035 and a hydraulic rod, wherein the fixed base 2031 is arranged on one surface inside the air-conditioning chamber 2, one surface of the fixed base 2031 is connected with the bottom pipe 2032, and the bottom pipe 2032 is sequentially connected with the filter element pipe 2034 and the top pipe 2033; the push rod 2035 is arranged in the push pipe 2033, and the push rod 2035 is connected with the inner surface of the air regulating chamber 2 through a hydraulic rod; the peripheral side surface of the jacking pipe 2033 is connected with an air inlet valve 202; the peripheral side surface of the bottom tube 2032 is connected with an oxygen pipe 204; one surface of the filter element tube 2034 is provided with a permeable membrane, and the circumferential side surface of the filter element tube 2034 is connected to the nitrogen pipe 205.
Wherein, the osmotic membrane is nitrogen-oxygen separation membrane, and top tube 2033 and bottom tube 2032 are all connected with air-conditioning chamber 2 bottom surface through the stabilizer blade.
Wherein, the nitrogen collector 207 comprises a limiting seat 2071, a gas collecting tube 2072, a draw rod 2073 and a telescopic rod; one surface of the limiting seat 2071 is connected with the air-conditioning chamber 2, one surface of the limiting seat 2071 is connected with the air-collecting tube 2072, the pull rod 2073 is arranged in the air-collecting tube 2072, the pull rod 2073 is connected with the inner surface of the air-conditioning chamber 2 through a telescopic rod, and the peripheral side surface of the air-collecting tube 2072 is respectively connected with the nitrogen valve 206 and the inlet valve 208.
The air-conditioning fresh-keeping device also comprises an oxygen concentration detector, a power supply, a memory, a microprocessor and a control board, wherein a probe of the oxygen concentration detector is arranged in the fresh-keeping chamber 1, and the power supply is respectively electrically connected with the oxygen concentration detector, the memory, the microprocessor, the control board, the air inlet valve 202, the oxygen-nitrogen separator 203, the nitrogen valve 206, the inlet valve 208, the air outlet valve 301 and the air pump 302; the microprocessor is respectively and electrically connected with the oxygen concentration detector, the control panel, the memory, the air inlet valve 202, the oxygen-nitrogen separator 203, the nitrogen valve 206, the inlet valve 208, the air outlet valve 301 and the air pump 302; the power supply, the memory, the microprocessor and the control panel are integrated on the power supply, the memory, the microprocessor and the control panel of the refrigerator.
Embodiment two:
referring to fig. 1-5, the invention relates to an air-conditioning fresh-keeping device for a refrigerator, which comprises the following using method and working principle: closing the nitrogen valve 206, opening the air inlet valve 202, then pulling the push rod 2035 outwards to suck air into the top pipe 2033, then closing the air inlet valve 202, pressing the air towards the filter element pipe 2034 by the push rod 2035, opening the nitrogen valve 206 when the push rod 2035 walks forwards to one third of the whole path of the push rod 2035, closing the air inlet valve 208, continuing pushing air into the filter element pipe 2034 by the push rod 2035, pulling the pull rod 2073 outwards, stopping both the push rod 2035 and the pull rod 2073 when the push rod 2035 reaches the filter element pipe 2034, closing the nitrogen valve 206, finally opening the inlet valve 208, the air outlet valve 301 and the air pump 302, pressing the pull rod 2073 towards the air collecting pipe 2072, and discharging the filtered air into the fresh-keeping chamber 1; the invention filters oxygen through the nitrogen-oxygen filtering membrane, and the concentration ratio of nitrogen to oxygen in the air is 7:2, when the push rod extrudes air to two thirds of the original volume, oxygen can pass through the nitrogen-oxygen filtering membrane under the action of pressure, then the rest nitrogen is discharged into the nitrogen collector 207, finally the nitrogen valve 206 is closed, and then the nitrogen in the nitrogen collector 207 is discharged into the fresh-keeping chamber 1, and the air circulation in the fresh-keeping chamber 1 is realized through the air pump 302 and the air outlet valve 301.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (3)
1. A fresh-keeping device of air conditioner for refrigerator, the device that shows sets up in fresh-keeping room one side of refrigerator, including fresh-keeping room (1), air conditioner room (2) and exhaust chamber (3), its characterized in that: one surface of the fresh-keeping chamber (1) is connected with the air-conditioning chamber (2) and the exhaust chamber (3);
the fresh-keeping chamber (1) comprises a fresh-keeping liner (101) and a fresh-keeping box (102), and the fresh-keeping box (102) is arranged in the fresh-keeping liner (101);
an air inlet pipe (201), an air inlet valve (202), an oxygen-nitrogen separator (203), an oxygen pipe (204), a nitrogen pipe (205), a nitrogen valve (206), a nitrogen collector (207) and an inlet valve (208) are arranged in the air-conditioning chamber (2); the air inlet pipe (201) is connected with the oxygen-nitrogen separator (203) through the air inlet valve (202), the oxygen pipe (204) is connected with the oxygen-nitrogen separator (203), and the oxygen-nitrogen separator (203) and the nitrogen collector (207) are sequentially connected through the nitrogen pipe (205) and the nitrogen valve (206); the nitrogen collector (207) is connected with the fresh-keeping chamber (1) through an inlet valve (208);
an air outlet valve (301), an air pump (302) and an exhaust pipe (303) are arranged in the exhaust chamber (3); an air inlet of the air pump (302) is connected with the fresh-keeping chamber (1) through an air outlet valve (301), and an air outlet of the air pump (302) is connected with the outside of the refrigerator through an exhaust pipe (303);
the oxygen-nitrogen separator (203) comprises a fixed seat (2031), a bottom pipe (2032), a top pipe (2033), a filter element pipe (2034), a push rod (2035) and a hydraulic rod, wherein the fixed seat (2031) is arranged on one surface inside the air-conditioning chamber (2), one surface of the fixed seat (2031) is connected with the bottom pipe (2032), and the bottom pipe (2032) is sequentially connected with the filter element pipe (2034) and the top pipe (2033); the push rod (2035) is arranged in the push pipe (2033), and the push rod (2035) is connected with the inner surface of the air regulating chamber (2) through a hydraulic rod; the peripheral side surface of the jacking pipe (2033) is connected with an air inlet valve (202); the peripheral side surface of the bottom tube (2032) is connected with an oxygen tube (204); a permeable membrane is arranged on one surface of the filter element pipe (2034), and the peripheral side surface of the filter element pipe (2034) is connected with a nitrogen pipe (205);
the nitrogen collector (207) comprises a limiting seat (2071), a gas collecting tube (2072), a drawing rod (2073) and a telescopic rod; one surface of the limiting seat (2071) is connected with the air-conditioning chamber (2), one surface of the limiting seat (2071) is connected with the gas collecting tube (2072), the pull rod (2073) is arranged in the gas collecting tube (2072), the draw rod (2073) is connected with the inner surface of the air-conditioning chamber (2) through a telescopic rod, and the peripheral side surface of the air collecting pipe (2072) is respectively connected with the nitrogen valve (206) and the inlet valve (208).
2. The modified atmosphere fresh-keeping device for the refrigerator according to claim 1, wherein the permeable membrane is a nitrogen-oxygen separation membrane, and the top pipe (2033) and the bottom pipe (2032) are connected with the bottom surface of the modified atmosphere chamber (2) through supporting legs.
3. The modified atmosphere fresh-keeping device for a refrigerator according to claim 1, further comprising an oxygen concentration detector, a power supply, a memory, a microprocessor and a control board, wherein a probe of the oxygen concentration detector is installed in the fresh keeping chamber (1), and the power supply is electrically connected with the oxygen concentration detector, the memory, the microprocessor, the control board, the air inlet valve (202), the oxygen-nitrogen separator (203), the nitrogen valve (206), the inlet valve (208), the air outlet valve (301) and the air pump (302) respectively; the microprocessor is respectively and electrically connected with the oxygen concentration detector, the control panel, the memory, the air inlet valve (202), the oxygen-nitrogen separator (203), the nitrogen valve (206), the inlet valve (208), the air outlet valve (301) and the air pump (302); the power supply, the memory, the microprocessor and the control panel are integrated on the power supply, the memory, the microprocessor and the control panel of the refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654638.XA CN110274425B (en) | 2019-07-19 | 2019-07-19 | Air-conditioning fresh-keeping device for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654638.XA CN110274425B (en) | 2019-07-19 | 2019-07-19 | Air-conditioning fresh-keeping device for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110274425A CN110274425A (en) | 2019-09-24 |
| CN110274425B true CN110274425B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910654638.XA Active CN110274425B (en) | 2019-07-19 | 2019-07-19 | Air-conditioning fresh-keeping device for refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN110274425B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183525B (en) * | 2021-04-02 | 2023-10-24 | 青岛海尔电冰箱有限公司 | Storage device and refrigerator |
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| WO2018103719A1 (en) * | 2016-12-09 | 2018-06-14 | 青岛海尔股份有限公司 | Refrigerating and freezing device having air-regulating fresh-keeping function |
| CN108759243A (en) * | 2018-06-19 | 2018-11-06 | 青岛海尔股份有限公司 | Control oxygen fresh-keeping refrigerator |
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| CN109539659A (en) * | 2018-12-14 | 2019-03-29 | 长虹美菱股份有限公司 | A kind of refrigerator with fresh-keeping function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9827530B2 (en) * | 2015-01-30 | 2017-11-28 | Hamilton Sundstrand Corporation | Enhanced device for separation of oxygen and nitrogen |
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2019
- 2019-07-19 CN CN201910654638.XA patent/CN110274425B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090622A (en) * | 2012-10-24 | 2013-05-08 | 徐东明 | Device for recycling fresh-keeping gas in fresh-keeping refrigerator |
| CN103090640A (en) * | 2012-10-24 | 2013-05-08 | 徐东明 | Gas-adjusting controlling device of fresh-keeping refrigerator |
| WO2018103719A1 (en) * | 2016-12-09 | 2018-06-14 | 青岛海尔股份有限公司 | Refrigerating and freezing device having air-regulating fresh-keeping function |
| CN108759243A (en) * | 2018-06-19 | 2018-11-06 | 青岛海尔股份有限公司 | Control oxygen fresh-keeping refrigerator |
| CN109210854A (en) * | 2018-11-06 | 2019-01-15 | 合肥工业大学智能制造技术研究院 | A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment |
| CN109539659A (en) * | 2018-12-14 | 2019-03-29 | 长虹美菱股份有限公司 | A kind of refrigerator with fresh-keeping function |
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| Publication number | Publication date |
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| CN110274425A (en) | 2019-09-24 |
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