CN113865192A - Fresh-keeping refrigerator and control method thereof - Google Patents
Fresh-keeping refrigerator and control method thereof Download PDFInfo
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- CN113865192A CN113865192A CN202111212310.6A CN202111212310A CN113865192A CN 113865192 A CN113865192 A CN 113865192A CN 202111212310 A CN202111212310 A CN 202111212310A CN 113865192 A CN113865192 A CN 113865192A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004321 preservation Methods 0.000 claims abstract description 98
- 239000001301 oxygen Substances 0.000 claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 65
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000004378 air conditioning Methods 0.000 claims abstract description 32
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims description 65
- 238000000926 separation method Methods 0.000 claims description 60
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims description 56
- 230000001276 controlling effect Effects 0.000 claims description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 30
- 235000013305 food Nutrition 0.000 abstract description 20
- 235000012055 fruits and vegetables Nutrition 0.000 description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 230000005494 condensation Effects 0.000 description 10
- 238000009833 condensation Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 230000009467 reduction Effects 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- 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
- 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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- 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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a fresh-keeping refrigerator and a control method thereof, wherein the fresh-keeping refrigerator comprises: the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air; the crisper drawer comprises at least: a controlled atmosphere preservation drawer and a vacuum preservation drawer; the air-conditioning assembly is used for separating oxygen from the air-conditioning preservation drawer or vacuumizing the vacuum preservation drawer. The invention solves the problem that the preservation drawer in the prior art can not meet the storage requirements of different food materials at the same time, so that the preservation refrigerator meets the storage requirements of different food materials, and the food freshness is improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a fresh-keeping refrigerator and a control method thereof.
Background
With the continuous improvement of living standard and the improvement of dietary structure, people have higher and higher requirements on freshness of food and durability of food preservation. The refrigerator is a terminal for storing food for consumers, and the demand of people for the fresh-keeping function of the refrigerator is increasingly improved.
At present, the air-conditioning preservation technology can generally meet the requirements of people, and usually, the oxygen concentration or the vacuum degree in a drawer is adjusted by using air-conditioning equipment. By reducing the oxygen concentration in the drawer or improving the vacuum degree, the aims of inhibiting aerobic respiration of fruits and vegetables, reducing water loss of food materials, delaying oxidative deterioration of food and the like are fulfilled.
However, the existing fresh-keeping drawer is basically one, but the requirements of different food materials on the storage environment are different. Therefore, the existing preservation drawer cannot simultaneously meet the storage requirements of different food materials.
Aiming at the problem that the preservation drawer in the related art cannot simultaneously meet the storage requirements of different food materials, no effective solution is provided at present.
Disclosure of Invention
The invention provides a preservation refrigerator and a control method thereof, which at least solve the problem that a preservation drawer in the prior art cannot simultaneously meet the storage requirements of different food materials.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a freshness refrigerator including:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air; the crisper drawer comprises at least: a controlled atmosphere preservation drawer and a vacuum preservation drawer;
the air-conditioning assembly is used for separating oxygen from the air-conditioning preservation drawer or vacuumizing the vacuum preservation drawer.
Further, the modified atmosphere subassembly includes at least: the nitrogen-oxygen separation membrane module is used for separating oxygen from the modified atmosphere preservation drawer; and the vacuum preservation assembly is used for vacuumizing the vacuum preservation drawer.
Further, the nitrogen-oxygen separation membrane module comprises: the nitrogen-oxygen separation membrane module is used for separating nitrogen and oxygen; the gas conditioning assembly comprises: the vacuum pump is connected with the nitrogen-oxygen separation membrane module through a first air exhaust pipe and used for exhausting oxygen in the air-conditioning and freshness-retaining drawer through the nitrogen-oxygen separation membrane module; wherein, the nitrogen-oxygen separation membrane module is at least partially arranged in the modified atmosphere preservation drawer, and the vacuum pump is arranged outside the modified atmosphere preservation drawer.
Further, the vacuum freshness keeping assembly comprises: and the vacuum pump is connected with the vacuum preservation drawer through the second air exhaust pipe.
Further, the nitrogen-oxygen separation membrane module also comprises: the first switch valve is positioned on the first exhaust pipe;
the vacuum freshness retaining assembly further comprises: and the second switch valve is positioned on the second exhaust pipe.
Further, the nitrogen-oxygen separation membrane module comprises a wind power component, and the wind power component is arranged at the nitrogen-oxygen separation membrane module and used for enabling air at the nitrogen-oxygen separation membrane module to circulate to prevent nitrogen from gathering.
Furthermore, the wind power component is a fan arranged on the nitrogen-oxygen separation membrane module, the number of the fans is two, and the two fans are arranged on the nitrogen-oxygen separation membrane module in parallel.
Further, the modified atmosphere preservation drawer further comprises: and the moisture removing component is arranged on the fresh-keeping drawer and is used for removing moisture from the fresh-keeping drawer.
Further, the dehumidifying assembly includes: the moisture discharging hole is used for discharging moisture in the fresh-keeping space; the adjusting part is used for adjusting the opening and closing of the moisture discharging hole.
Further, the dehumidifying assembly includes: the adjusting piece is movably arranged on the base plate so as to adjust the opening and closing of the moisture exhaust hole; wherein the adjusting piece is a baffle; the slide rail is installed on the base plate, and the baffle is installed on the slide rail in a slidable mode.
Further, still include: the oxygen concentration sensor is positioned in the modified atmosphere preservation drawer and is used for detecting the oxygen concentration in the modified atmosphere preservation drawer; the vacuum degree sensor is positioned in the vacuum preservation drawer and is used for detecting the vacuum degree in the vacuum preservation drawer; and the door opening and closing sensor is positioned on the fresh-keeping drawer and used for identifying whether the fresh-keeping drawer is opened or not.
According to another aspect of the embodiments of the present invention, there is provided a method for controlling a freshness refrigerator, which is applied to the freshness refrigerator, and includes:
detecting whether a fresh-keeping drawer is opened;
if yes, determining the opened fresh-keeping drawer;
and controlling the opening of the air-conditioning assembly to adjust the environmental parameters in the opened fresh-keeping drawer.
Further, the opened crisper drawer comprises: a modified atmosphere preservation drawer, and/or a vacuum preservation drawer; controlling the opening of the controlled atmosphere component comprises: when the opened fresh-keeping drawer comprises the air-conditioned fresh-keeping drawer, the moisture-removing component is controlled to remove moisture from the fresh-keeping drawer, and after the moisture removal is finished, the vacuum pump is controlled to be opened, the first switch valve is controlled to be opened, and the oxygen concentration in the air-conditioned fresh-keeping drawer is adjusted; and when the opened preservation drawer comprises a vacuum preservation drawer, controlling the vacuum pump to be opened and controlling the second switch valve to be opened.
Further, control hydrofuge subassembly carries out the hydrofuge to fresh-keeping drawer, includes: the control regulating part is positioned in a state that the moisture exhaust hole is completely opened.
Further, after controlling the first switch valve to be opened, the method further comprises: controlling the opening of a wind power component of the nitrogen-oxygen separation membrane module; detecting the oxygen concentration in the modified atmosphere preservation drawer; and when the oxygen concentration is reduced to the preset concentration, controlling the wind power part to be closed.
Further, after the freshness drawer is determined to be opened, the method further comprises the following steps: after the preset time, detecting whether the opened fresh-keeping drawer is closed; if yes, triggering and controlling the controlled atmosphere component to be started; otherwise, reminding the user to close the opened fresh-keeping drawer.
According to yet another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the crisper control method as described above when executed by a computer processor.
The invention provides a preservation refrigerator with a vacuum preservation drawer and an air-conditioning preservation drawer, which is provided with an air-conditioning component for separating oxygen from the air-conditioning preservation drawer or vacuumizing the vacuum preservation drawer. Through having different gas conditioning functions and having the fresh-keeping drawer of different storage functions, classify the storage to different edible materials to satisfy the requirement of different edible materials to the storage environment, effectively solved among the prior art problem that the storage requirement of different edible materials can't be satisfied simultaneously to the fresh-keeping drawer, make the fresh-keeping refrigerator satisfy the storage demand of different edible materials, improve the fresh degree of food.
Drawings
FIG. 1 is a schematic diagram of an alternative configuration of a crisper according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an alternative nitrogen-oxygen separation membrane module according to an embodiment of the present invention;
FIG. 3 is a schematic view of an alternative construction of a dehumidifying module according to an embodiment of the present invention;
FIG. 4 is an alternative flow chart of a crisper control method according to an embodiment of the present invention;
fig. 5 is another alternative flow chart of a crisper control method according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, there is provided a freshness refrigerator, specifically, fig. 1 shows an alternative structural schematic diagram of the freshness refrigerator, as shown in fig. 1, the freshness refrigerator includes:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air;
the crisper drawer comprises at least: a modified atmosphere preservation drawer 1 and a vacuum preservation drawer 2; the air-conditioning preservation drawer 1 can be used as a fruit and vegetable drawer, and the vacuum preservation drawer 2 can be used as a dry goods drawer.
The air-conditioning assembly is used for separating oxygen from the air-conditioning preservation drawer 1 or vacuumizing the vacuum preservation drawer 2.
In the above embodiments, a crisper having a vacuum crisper drawer and a modified atmosphere crisper drawer is provided, and a modified atmosphere component is provided for separating oxygen from the modified atmosphere crisper drawer or evacuating the vacuum crisper drawer. Through having different gas conditioning functions and having the fresh-keeping drawer of different storage functions, classify the storage to different edible materials to satisfy the requirement of different edible materials to the storage environment, effectively solved among the prior art problem that the storage requirement of different edible materials can't be satisfied simultaneously to the fresh-keeping drawer, make the fresh-keeping refrigerator satisfy the storage demand of different edible materials, improve the fresh degree of food.
Wherein, the gas is transferred the subassembly and is included at least: the nitrogen-oxygen separation membrane module is used for separating oxygen from the modified atmosphere preservation drawer 1; and the vacuum preservation assembly is used for vacuumizing the vacuum preservation drawer 2.
The nitrogen-oxygen separation membrane module comprises: the nitrogen-oxygen separation membrane module 4 is used for separating nitrogen and oxygen; the gas conditioning assembly comprises: the vacuum pump 6 is connected with the nitrogen-oxygen separation membrane module 4 through a first air exhaust pipe 7, and the vacuum pump 6 exhausts oxygen in the air-conditioning and freshness-keeping drawer 1 through the nitrogen-oxygen separation membrane module 4; wherein, the nitrogen-oxygen separation membrane module 4 is at least partially arranged in the modified atmosphere preservation drawer 1, and the vacuum pump 6 is arranged outside the modified atmosphere preservation drawer 1.
In the technical scheme of this kind of implementing, the nitrogen oxygen separation membrane module includes nitrogen oxygen separation membrane module 4 and vacuum pump 6, and nitrogen oxygen separation membrane module 4 is used for separating nitrogen gas and oxygen, and vacuum pump 6 links to each other through first exhaust tube 7 with nitrogen oxygen separation membrane module 4, and vacuum pump 6 takes out the oxygen in the fresh-keeping space through nitrogen oxygen separation membrane module 4. As shown in fig. 1, when using, the nitrogen-oxygen separation membrane module 4 is disposed in the fresh-keeping space, the vacuum pump 6 is disposed outside the fresh-keeping space, the vacuum pump 6 acts on the nitrogen-oxygen separation membrane module 4 through the exhaust tube 23, the nitrogen-oxygen separation membrane module 4 only allows oxygen to pass through, and nitrogen remains in the fresh-keeping space, and the oxygen separated by the nitrogen-oxygen separation membrane module 4 is discharged to the external space through the exhaust tube 23 and the vacuum pump 6.
Optionally, in the technical solution of this embodiment, the nitrogen-oxygen separation membrane module 4 is at least partially disposed inside the fresh-keeping drawer, and the vacuum pump 6 is disposed outside the fresh-keeping drawer. Wherein, should guarantee at least that the separation nitrogen gas circulation's of nitrogen oxygen separation membrane module 4 one side is located fresh-keeping drawer when using, let whole nitrogen oxygen separation membrane module 4 also be feasible within fresh-keeping drawer certainly. The vacuum pump 6 is arranged outside the fresh-keeping drawer and is connected with the nitrogen-oxygen separation membrane module 4 through an exhaust tube, the position of the vacuum pump 6 can be the position adjacent to the fresh-keeping drawer, and also can be the position far away from the fresh-keeping drawer, such as the positions of an inner container of a refrigerator or a compressor bin, and the like, as long as the vacuum pump is connected with the nitrogen-oxygen separation membrane module 4 through the exhaust tube.
More preferably, as shown in fig. 2, the nitrogen and oxygen separation membrane module includes a wind power part 11, and the wind power part 11 is provided at the nitrogen and oxygen separation membrane module 4. When the nitrogen-oxygen separation membrane module is used, the wind power component 11 can enable air at the nitrogen-oxygen separation membrane module 4 to circulate to prevent nitrogen from gathering, so that the separation efficiency of the nitrogen-oxygen separation membrane module on oxygen in the fresh-keeping space is improved.
As an alternative embodiment, the wind power unit 11 is a fan mounted on the nitrogen-oxygen separation membrane module 4. Preferably, the number of the fans is two, and the two fans are arranged on the nitrogen-oxygen separation membrane module 4 in parallel, so that the air circulation efficiency in the fresh-keeping space is improved. As a further alternative, the wind power element 11 may also be a ventilation board that is movable to circulate the air flow.
The vacuum freshness retaining assembly comprises: the second exhaust tube 8, the vacuum pump 6 and the vacuum fresh-keeping drawer 2 are connected through the second exhaust tube 8.
The nitrogen-oxygen separation membrane module also comprises: the first switch valve 9 is positioned on the first exhaust pipe 7; the vacuum freshness retaining assembly further comprises: and the second switch is a first switch valve 0 and is positioned on the second air exhaust pipe 8.
Because the vacuum degree and the vacuumizing speed of the vacuum pump are limited, the oxygen reduction and the vacuumizing of the two drawers are difficult to be simultaneously finished by one vacuum pump, and therefore the vacuumizing operation is carried out firstly and then the oxygen reduction operation is carried out in principle by controlling the opening of the pipeline valve and the vacuum pump. Therefore, the vacuum pump 6 is simultaneously connected with the air-conditioning preservation drawer 1 and the vacuum preservation drawer 2 through the pipelines, the air exhaust sequence is controlled by the electromagnetic valve, the oxygen reduction function and the vacuum pumping function are simultaneously realized, the cost is saved, and meanwhile, different requirements of food materials such as fruits, vegetables, meat and dry goods on the storage environment are met.
In a preferred embodiment of the present invention, the modified atmosphere preservation drawer 1 further comprises: and the moisture removing component 5 is arranged on the fresh-keeping drawer and is used for removing moisture from the fresh-keeping drawer. The dehumidifying module 5 includes: a moisture exhaust hole 51, wherein the moisture exhaust hole 51 is used for exhausting moisture in the fresh-keeping space; and an adjusting member 52, the adjusting member 52 adjusting opening and closing of the moisture discharge hole 51. The upper part of the fruit and vegetable air conditioning drawer is also provided with a dehumidifying structure, the fruit and vegetable air conditioning drawer maintains 90% -96% relative humidity for a long time, the humidity is the most suitable storage humidity of fruits and vegetables, but the humidity can bring condensation problems, when a user opens the refrigerator and opens the fruit and vegetable box, hot air in the air can enter the fruit and vegetable box to cause wall condensation, after the fruit and vegetable box is closed, the condensation can not evaporate in the low-temperature and high-humidity environment, fruit and vegetable rot and bacterial growth can be caused, therefore, the dehumidifying function needs to be opened after the drawer is opened every time, the condensation is evaporated and then is subjected to oxygen reduction, and the mode of firstly dehumidifying and then reducing the oxygen for air conditioning is adopted.
As shown in fig. 3, the dehumidifying assembly 5 includes: the base plate 53, the moisture exhaust hole 51 is opened on the base plate 53, the adjusting piece 52 is movably arranged on the base plate 53 to adjust the opening and closing of the moisture exhaust hole 51; wherein the adjusting member 52 is a baffle; a slide rail 54, the slide rail 54 is installed on the base plate 53, and the baffle is slidably installed on the slide rail 54.
In addition, the freshness refrigerator further includes: the oxygen concentration sensor 12 is positioned in the modified atmosphere preservation drawer and is used for detecting the oxygen concentration in the modified atmosphere preservation drawer; the vacuum degree sensor 13 is positioned in the vacuum preservation drawer and is used for detecting the vacuum degree in the vacuum preservation drawer; the door opening and closing sensor is positioned on the preservation drawer and comprises a vacuum preservation drawer and a modified atmosphere preservation drawer and is used for identifying whether the preservation drawer is opened or not.
As another optional embodiment of the invention, an air-adjusting film 3 is further arranged on the fresh-keeping drawer for adjusting the gas concentration of the fresh-keeping space relative to the external space; the modified atmosphere film can be used for adjusting the oxygen concentration, the carbon dioxide concentration and the water vapor concentration, namely the humidity of the fresh-keeping space relative to the external space.
By applying the technical scheme of the invention, oxygen can be separated from the fresh-keeping space through the nitrogen-oxygen separation membrane component, so that a low-oxygen atmosphere is created in the fresh-keeping space, and the fresh keeping of food materials such as fruits and vegetables is facilitated. And can finely tune oxygen concentration and carbon dioxide concentration in the fresh-keeping space through the gas modified membrane, the in-process that the fresh-keeping space was using, under the respiratory of edible materials such as vegetables, can let the oxygen concentration in the fresh-keeping space further descend, and let carbon dioxide concentration rise, consequently can let the oxygen of external space appropriately supply into the fresh-keeping space through the gas modified membrane, let the carbon dioxide in the fresh-keeping space spill over to external space, just so avoided in the fresh-keeping space because of oxygen concentration low excessively, the anaerobic respiration of edible materials such as vegetables and fruits that the carbon dioxide concentration is too high arouses for oxygen concentration. Optionally, the water vapor permeability of the air-conditioning film is 1000-4000 g/m2·24h，O2A transmittance of 2000 to 6000mL/m2·24h，CO2The transmittance is 4000 to 10000mL/m2·24h。
Therefore, the modified atmosphere film can also maintain the humidity in the fresh-keeping space at a certain level, and is beneficial to the fresh keeping of food materials such as fruits and vegetables.
Example 2
In a preferred embodiment 2 of the present invention, a method for controlling a freshness refrigerator is provided, which is applied to the freshness refrigerator in the above embodiment 1. In particular, fig. 4 shows an alternative flow chart of the method, which, as shown in fig. 4, comprises the following steps S402-S406:
s402: detecting whether a fresh-keeping drawer is opened;
s404: if yes, determining the opened fresh-keeping drawer;
s406: and controlling the opening of the air-conditioning assembly to adjust the environmental parameters in the opened fresh-keeping drawer.
In the above embodiments, a crisper having a vacuum crisper drawer and a modified atmosphere crisper drawer is provided, and a modified atmosphere component is provided for separating oxygen from the modified atmosphere crisper drawer or evacuating the vacuum crisper drawer. Through having different gas conditioning functions and having the fresh-keeping drawer of different storage functions, classify the storage to different edible materials to satisfy the requirement of different edible materials to the storage environment, effectively solved among the prior art problem that the storage requirement of different edible materials can't be satisfied simultaneously to the fresh-keeping drawer, make the fresh-keeping refrigerator satisfy the storage demand of different edible materials, improve the fresh degree of food.
The crisper drawer that opens includes: a modified atmosphere preservation drawer, and/or a vacuum preservation drawer; controlling the opening of the controlled atmosphere component comprises: when the opened fresh-keeping drawer comprises the air-conditioned fresh-keeping drawer, the moisture-removing component is controlled to remove moisture from the fresh-keeping drawer, and after the moisture removal is finished, the vacuum pump is controlled to be opened, the first switch valve is controlled to be opened, and the oxygen concentration in the air-conditioned fresh-keeping drawer is adjusted; and when the opened preservation drawer comprises a vacuum preservation drawer, controlling the vacuum pump to be opened and controlling the second switch valve to be opened. The upper part of the fruit and vegetable air conditioning drawer is also provided with a dehumidifying structure, the fruit and vegetable air conditioning drawer maintains 90% -96% relative humidity for a long time, the humidity is the most suitable storage humidity of fruits and vegetables, but the humidity can bring condensation problems, when a user opens the refrigerator and opens the fruit and vegetable box, hot air in the air can enter the fruit and vegetable box to cause wall condensation, after the fruit and vegetable box is closed, the condensation can not evaporate in the low-temperature and high-humidity environment, fruit and vegetable rot and bacterial growth can be caused, therefore, the dehumidifying function needs to be opened after the drawer is opened every time, the condensation is evaporated and then is subjected to oxygen reduction, and the mode of firstly dehumidifying and then reducing the oxygen for air conditioning is adopted.
Specifically, control hydrofuge subassembly carries out the hydrofuge to fresh-keeping drawer, includes: the control regulating part is positioned in a state that the moisture exhaust hole is completely opened.
After controlling the first switch valve to be opened, the method further comprises the following steps: controlling the opening of a wind power component of the nitrogen-oxygen separation membrane module; detecting the oxygen concentration in the modified atmosphere preservation drawer; and when the oxygen concentration is reduced to the preset concentration, controlling the wind power part to be closed. The wind power component is arranged on the nitrogen-oxygen separation membrane module, so that the air circulation efficiency in the fresh-keeping space is improved.
After the freshness drawer is determined to be opened, the method further comprises the following steps: after the preset time, detecting whether the opened fresh-keeping drawer is closed; if yes, triggering and controlling the controlled atmosphere component to be started; otherwise, reminding the user to close the opened fresh-keeping drawer. If the drawer does not reset, the user is reminded to close the drawer which is not reset so as to avoid electric quantity loss and influence the freshness degree of food materials.
In a preferred embodiment 2 of the present invention, another method for controlling a fresh-keeping refrigerator is further provided, and specifically, fig. 5 shows an optional flowchart of the method, and as shown in fig. 5, the method includes the following steps S501 to S517:
s501: the door opening and closing sensor judges the state of the drawer;
s502: recognizing that the drawer is opened;
s503: recording the opened drawer; after the drawer is identified to be opened, recording the opened drawer within 15 min;
s504: judging whether all the drawers are reset or not; if yes, the step S505 is entered, otherwise, the step S505 is entered;
s505: if not, reminding the user to close the non-reset drawer; if the drawer is not reset, reminding a user to close the drawer which is not reset so as to avoid electric quantity loss and influence on the freshness degree of food materials;
s506: whether the modified atmosphere preservation drawer is opened or not; if yes, go to step S507, otherwise, go to step S508;
s507: opening a moisture discharging port; opening a moisture discharging port on the air-conditioned fresh-keeping drawer to ensure that the air-conditioned fresh-keeping drawer is quickly drenched and condensation is prevented;
s508: whether the vacuum preservation drawer is opened or not; if yes, go to step S509, otherwise, go to step S512 after 20 min;
s509: opening a second switch valve;
s510: vacuumizing the vacuum preservation drawer to a set vacuum degree;
s511: closing the second switch valve; when the pressure sensor identifies that the vacuum degree in the vacuum refreshing drawer reaches a set value, controlling the corresponding valve to close;
s512: whether the moisture discharging port is opened or not; if yes, go to step S513, otherwise, go to step S517;
s513: closing the moisture discharging port;
s514: starting a first switch valve and a nitrogen-oxygen separation membrane fan; pumping air to the air-conditioning fresh-keeping drawer;
s515: reducing the oxygen concentration in the modified atmosphere preservation drawer to a set value;
s516: closing the first switch valve and closing the nitrogen-oxygen separation membrane fan;
s517: closing the vacuum pump; and when the oxygen concentration sensor identifies that the oxygen concentration of the air-conditioning fresh-keeping drawer reaches a set value, controlling the first switch valve to be closed, and closing the vacuum pump. After that, the process returns to step S501.
Depending on the drawer opening, there are mainly three control situations:
(1) opening the modified atmosphere preservation drawer: and (3) carrying out dehumidification treatment on the modified atmosphere preservation drawer, closing a dehumidification opening after 20min, opening the first switch valve, the nitrogen-oxygen separation membrane fan and the vacuum pump to carry out oxygen reduction on the modified atmosphere preservation drawer, and closing the first switch valve, the nitrogen-oxygen separation membrane fan and the vacuum pump when the oxygen concentration is reduced to a set value.
(2) Opening the air-conditioning preservation drawer and the vacuum preservation drawer: the air-conditioning preservation drawer is subjected to dehumidification treatment, a dehumidification opening is opened, then the second switch valve and the vacuum pump are started, the vacuum preservation drawer of the vacuum preservation drawer is excellently vacuumized, and the second switch valve is closed after the vacuum degree reaches a set value. And at the moment, the humidity of the air-conditioned fresh-keeping drawer is exhausted, the humidity exhaust port is closed, then the first switch valve and the nitrogen-oxygen separation membrane fan are opened to reduce oxygen in the air-conditioned fresh-keeping drawer, and the first switch valve, the fan and the vacuum pump are closed after the humidity is exhausted.
(3) Opening the vacuum preservation drawer: directly vacuumize the vacuum fresh-keeping drawer.
The vacuum pump is connected with the air-conditioning preservation drawer and the vacuum preservation drawer through the pipeline, the air suction sequence is controlled by the electromagnetic valve, and the oxygen reduction function and the vacuum pumping function are realized simultaneously. The air-conditioned preservation drawer is provided with a moisture discharging port, whether the moisture discharging port is opened or not is controlled according to the condition that a user opens and closes the drawer, and after the user opens and closes the air-conditioned preservation drawer, moisture is discharged firstly and then air is conditioned by controlling the air exhaust sequence, so that condensation is avoided.
Example 3
Based on the method for controlling the freshness refrigerator provided in the above embodiment 2, in a preferred embodiment 3 of the present invention, there is also provided a storage medium containing computer executable instructions, which are executed by a computer processor to perform the method for controlling the freshness refrigerator as described above.
In the above embodiments, a crisper having a vacuum crisper drawer and a modified atmosphere crisper drawer is provided, and a modified atmosphere component is provided for separating oxygen from the modified atmosphere crisper drawer or evacuating the vacuum crisper drawer. Through having different gas conditioning functions and having the fresh-keeping drawer of different storage functions, classify the storage to different edible materials to satisfy the requirement of different edible materials to the storage environment, effectively solved among the prior art problem that the storage requirement of different edible materials can't be satisfied simultaneously to the fresh-keeping drawer, make the fresh-keeping refrigerator satisfy the storage demand of different edible materials, improve the fresh degree of food.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (17)
1. A crisper refrigerator, comprising:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air; the crisper drawer comprises at least: a modified atmosphere preservation drawer (1) and a vacuum preservation drawer (2);
the air-conditioning assembly is used for separating oxygen from the air-conditioning preservation drawer (1) or vacuumizing the vacuum preservation drawer (2).
2. The crisper refrigerator of claim 1, wherein the modified atmosphere assembly comprises at least:
the nitrogen-oxygen separation membrane module is used for separating oxygen from the modified atmosphere preservation drawer (1);
and the vacuum preservation assembly is used for vacuumizing the vacuum preservation drawer (2).
3. The crisper refrigerator of claim 2,
the nitrogen-oxygen separation membrane module comprises: the nitrogen-oxygen separation membrane module (4) is used for separating nitrogen and oxygen;
the modified atmosphere subassembly includes: the vacuum pump (6) is connected with the nitrogen-oxygen separation membrane module (4) through a first air exhaust pipe (7), and the vacuum pump (6) exhausts oxygen in the modified atmosphere preservation drawer (1) through the nitrogen-oxygen separation membrane module (4); wherein, the nitrogen-oxygen separation membrane module (4) is at least partially arranged in the modified atmosphere preservation drawer (1), and the vacuum pump (6) is arranged outside the modified atmosphere preservation drawer (1).
4. The crisper refrigerator of claim 3, wherein the vacuum refreshing assembly comprises:
and the vacuum pump (6) is connected with the vacuum preservation drawer (2) through the second air exhaust pipe (8).
5. The crisper refrigerator of claim 4,
the nitrogen-oxygen separation membrane module further comprises: the first switch valve (9) is positioned on the first air suction pipe (7);
the vacuum freshness retaining assembly further comprises: and the second switch valve (10) is positioned on the second air suction pipe (8).
6. The crisper according to claim 3, characterized in that the membrane module comprises a wind power unit (11), the wind power unit (11) being arranged at the membrane module (4) for circulating air at the membrane module (4) to prevent nitrogen accumulation.
7. The crisper according to claim 6, characterized in that said wind power means (11) are fans mounted on the module (4) of membranes of nitrogen and oxygen, said fans being two, two fans being arranged side by side on the module (4) of membranes of nitrogen and oxygen.
8. The crisper refrigerator of claim 1, characterized in that the modified atmosphere drawer (1) further comprises:
and the moisture removing component (5) is arranged on the fresh-keeping drawer and is used for removing moisture from the fresh-keeping drawer.
9. The crisper refrigerator of claim 8, characterized in that said dehumidifying module (5) comprises:
a moisture exhaust hole (51), wherein the moisture exhaust hole (51) is used for exhausting moisture in the fresh-keeping space;
and the adjusting piece (52), the adjusting piece (52) is used for adjusting the opening and closing of the moisture discharging hole.
10. The crisper refrigerator of claim 9, characterized in that said dehumidifying module (5) comprises:
the base plate (53), the moisture exhaust hole (51) is set on the base plate, the adjusting piece (52) is movably set on the base plate (53) to adjust the opening and closing of the moisture exhaust hole (51); wherein the adjusting piece (52) is a baffle plate;
a slide rail (54), the slide rail (54) is mounted on the base plate (53), and the baffle is slidably mounted on the slide rail (54).
11. The crisper refrigerator of claim 1, further comprising:
the oxygen concentration sensor (12) is positioned in the modified atmosphere preservation drawer and is used for detecting the oxygen concentration in the modified atmosphere preservation drawer;
the vacuum degree sensor (13) is positioned in the vacuum preservation drawer and is used for detecting the vacuum degree in the vacuum preservation drawer;
and the door opening and closing sensor is positioned on the fresh-keeping drawer and is used for identifying whether the fresh-keeping drawer is opened or not.
12. A freshness refrigerator control method applied to the freshness refrigerator of any one of claims 1 to 11, comprising:
detecting whether a fresh-keeping drawer is opened;
if yes, determining the opened fresh-keeping drawer;
and controlling the opening of the air-conditioning assembly, and adjusting the environmental parameters in the opened fresh-keeping drawer.
13. The method of claim 12, wherein the opened crisper drawer comprises: a modified atmosphere preservation drawer, and/or a vacuum preservation drawer; the controlled atmosphere subassembly is opened, includes:
when the opened fresh-keeping drawer comprises the controlled atmosphere fresh-keeping drawer, controlling a moisture-removing component to remove moisture from the fresh-keeping drawer, and after moisture removal is finished, controlling a vacuum pump to be opened, controlling a first switch valve to be opened, and adjusting the oxygen concentration in the controlled atmosphere fresh-keeping drawer;
and when the opened fresh-keeping drawer comprises the vacuum fresh-keeping drawer, controlling the vacuum pump to be opened and controlling a second switch valve to be opened.
14. The method of claim 13, wherein the control moisture removal assembly removes moisture from the crisper drawer, comprising: the control regulating part is positioned in a state that the moisture exhaust hole is completely opened.
15. The method of claim 13, further comprising, after controlling the first switch valve to open:
controlling the opening of a wind power component of the nitrogen-oxygen separation membrane module;
detecting the oxygen concentration in the modified atmosphere preservation drawer;
and controlling the wind power component to be closed when the oxygen concentration is reduced to a preset concentration.
16. The method of claim 12, further comprising, after said determining an open crisper drawer:
after the preset time, detecting whether the opened fresh-keeping drawer is closed;
if yes, triggering the controlled atmosphere component to be started;
otherwise, reminding the user to close the opened fresh-keeping drawer.
17. A storage medium containing computer executable instructions, wherein the computer executable instructions, when executed by a computer processor, are for performing the crisper control method of any of claims 12 to 16.
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| CN202111212310.6A CN113865192A (en) | 2021-10-18 | 2021-10-18 | Fresh-keeping refrigerator and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111212310.6A CN113865192A (en) | 2021-10-18 | 2021-10-18 | Fresh-keeping refrigerator and control method thereof |
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