CN115164505B - Control method of storage device, storage device and refrigerator - Google Patents
Control method of storage device, storage device and refrigerator Download PDFInfo
- Publication number
- CN115164505B CN115164505B CN202110361536.6A CN202110361536A CN115164505B CN 115164505 B CN115164505 B CN 115164505B CN 202110361536 A CN202110361536 A CN 202110361536A CN 115164505 B CN115164505 B CN 115164505B
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- oxygen concentration
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- humidity
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- 239000001301 oxygen Substances 0.000 claims abstract description 236
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 236
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 233
- 238000004321 preservation Methods 0.000 claims abstract description 55
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 14
- 238000004378 air conditioning Methods 0.000 claims description 60
- 239000007789 gas Substances 0.000 claims description 40
- 239000012528 membrane Substances 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 8
- 238000013507 mapping Methods 0.000 claims description 8
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 12
- 235000013305 food Nutrition 0.000 description 12
- 238000005192 partition Methods 0.000 description 12
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- 244000060011 Cocos nucifera Species 0.000 description 5
- 235000013162 Cocos nucifera Nutrition 0.000 description 5
- 235000008429 bread Nutrition 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 235000013336 milk Nutrition 0.000 description 5
- 239000008267 milk Substances 0.000 description 5
- 210000004080 milk Anatomy 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009920 food preservation Methods 0.000 description 3
- 240000007124 Brassica oleracea Species 0.000 description 2
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 2
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 2
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 2
- 235000003228 Lactuca sativa Nutrition 0.000 description 2
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- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
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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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
-
- 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
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
- F25D2317/04131—Control means therefor
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
-
- 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
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
-
- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a control method of a storage device, which comprises the following steps: determining a storage humidity range and a storage oxygen concentration range required by the articles placed in the fresh-keeping storage cavity; acquiring the humidity and the oxygen concentration in the fresh-keeping storage cavity; and controlling the controlled atmosphere preservation system and the fan to operate so as to keep the humidity of the preservation storage cavity within the storage humidity range and keep the oxygen concentration of the preservation storage cavity within the storage oxygen concentration range. The invention also provides a storage device and a refrigerator. The control method of the storage device ensures that the fresh-keeping storage cavity can meet the fresh-keeping requirement of the articles, improves the fresh-keeping effect of the articles and simultaneously avoids the occurrence of condensation.
Description
Technical Field
The present invention relates to the field of storage technologies, and in particular, to a control method of a storage device, and a refrigerator.
Background
With the improvement of life quality, the consumer demand for preservation of stored foods is also increasing, and especially the demands for color, taste and the like of foods are also increasing. Therefore, the stored food should also ensure that the color, mouthfeel, freshness, etc. of the food remain as unchanged as possible during storage. Therefore, users also put higher demands on the fresh-keeping technology of refrigerators and the like. The existing refrigerator has the advantages that the fresh-keeping storage cavity is obtained by adopting the air-conditioning fresh-keeping technology, but the problem of low deoxidizing efficiency exists, meanwhile, the internal moisture in the existing fresh-keeping storage cavity cannot be discharged, so that the moisture is condensed in the fresh-keeping storage cavity, the longer the time is, the more water can be condensed in the fresh-keeping storage cavity, the condensation is generated, and the product use is affected.
Disclosure of Invention
The invention aims to provide a control method of a storage device, which can meet the fresh-keeping requirement of articles, improve the fresh-keeping effect of the articles and avoid condensation.
It is a further object of the present invention to provide a storage device and a refrigerator having reasonably compact arrangement of components.
In particular, the invention provides a control method of a storage device, which comprises a preservation box, an air-conditioning preservation system and a fan, wherein the preservation box is limited with a preservation storage cavity; the air-conditioning preservation system is configured to reduce the oxygen concentration in the preservation storage cavity, and the fan is configured to controllably promote the air in the preservation storage cavity to flow to the air-conditioning preservation system and to pump the air in the preservation storage cavity out of the preservation box so as to reduce the humidity of the preservation storage cavity; the control method comprises the following steps:
determining a storage humidity range and a storage oxygen concentration range required by the articles placed in the fresh-keeping storage cavity;
acquiring humidity and oxygen concentration in the fresh-keeping storage cavity;
the controlled atmosphere fresh-keeping system and the fan are controlled to operate so that the humidity of the fresh-keeping storage cavity is kept within the storage humidity range, and the oxygen concentration of the fresh-keeping storage cavity is kept within the storage oxygen concentration range.
Optionally, the step of determining a range of storage humidity and a range of storage oxygen concentration required to preserve the items placed in the storage cavity comprises:
acquiring triggering operation of placing articles into a fresh-keeping storage cavity by a user;
acquiring article information and displaying a display interface comprising a pre-judging article type selection window;
receiving a selection operation of a user on a display interface to obtain a determined article type;
and determining a storage humidity range and a storage oxygen concentration range corresponding to the object types according to a preset mapping relation, wherein the mapping relation prescribes the storage humidity range and the storage oxygen concentration range corresponding to the object types.
Optionally, the step of acquiring the item information and displaying a display interface including a pre-determined item category selection window includes:
acquiring an image of an article to obtain a first image;
a display interface including a first image and a pre-determined item category selection window is displayed.
Optionally, the control method further includes:
after controlling the controlled atmosphere preservation system and the fan to run for a preset period of time, acquiring images of the articles again to obtain a second image;
comparing the second image with the first image;
and reminding a user to adjust the control when the difference characteristics of the second image and the first image exceed the preset difference range.
Optionally, the fan is configured such that the inlet is communicated with the fresh-keeping storage cavity, a first channel is arranged between the outlet and the air-conditioning membrane component of the air-conditioning fresh-keeping system, and a second channel is arranged between the outlet and the outside of the fresh-keeping box; the storage device further comprises a switching mechanism which is configured to controllably adjust the on-off state between the outlet of the fan and the first channel and the second channel;
the steps for controlling the operation of the air-conditioning fresh-keeping system and the fan comprise: based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage cavity, the oxygen concentration of the fresh-keeping storage cavity and the normal oxygen concentration, the controlled atmosphere fresh-keeping system, the fan and the switching mechanism act.
Optionally, the modified atmosphere fresh-keeping system further comprises an air pump configured to be connected with the oxygen-enriched gas collection cavity of the modified atmosphere membrane assembly through a first pipeline; the switching mechanism comprises a second pipeline, an air bag and an elastic piece, wherein one end of the second pipeline is connected with the air pump, and the other end of the second pipeline is provided with the elastic piece; the air bag is formed on the second pipeline, the elastic sheet is arranged in an intersection area of the first channel and the second channel and is configured to shrink when the air pump pumps air to the second pipeline, so that the air bag drives the elastic sheet to move to open the first channel and close the second channel, and the air bag resumes to push the elastic sheet to move to close the first channel and open the second channel when the air pump does not pump air to the second pipeline;
The steps for controlling the operation of the air-conditioning fresh-keeping system and the fan comprise: the air pump and the fan are controlled to be switched on and off based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage cavity, the oxygen concentration of the fresh-keeping storage cavity and the normal oxygen concentration.
Optionally, the step of controlling the on/off of the air pump and the blower based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh keeping storage cavity, the oxygen concentration of the fresh keeping storage cavity and the normal oxygen concentration comprises:
judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration;
when the stored oxygen concentration range is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity is larger than the stored humidity range;
if yes, the air pump is controlled not to operate, and the fan is controlled to operate;
if not, controlling the operation of the air pump and the operation of the fan.
Optionally, the step of controlling the on/off of the air pump and the blower based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh keeping storage cavity, the oxygen concentration of the fresh keeping storage cavity and the normal oxygen concentration further comprises:
when the stored oxygen concentration range is not smaller than the normal oxygen concentration, judging whether the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range;
When the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range, the air pump is controlled to not operate, and the fan is operated;
when the oxygen concentration of the fresh-keeping storage cavity is not less than the storage oxygen concentration range, judging whether the humidity of the fresh-keeping storage cavity is greater than the storage humidity range;
if yes, the air pump is controlled not to operate, and the fan is controlled to operate;
if not, the air pump is controlled not to operate, and the fan is not operated.
The invention also provides a storage device, which comprises:
the humidity detection unit is used for acquiring the humidity in the fresh-keeping storage cavity;
the gas concentration detection unit is used for obtaining the oxygen concentration in the fresh-keeping storage cavity; and
the control unit comprises a memory, a processor and a machine executable program stored on the memory and running on the processor, and the processor realizes the control method of the storage device when executing the machine executable program.
The invention also provides a refrigerator which is characterized by comprising the storage device.
According to the control method of the storage device, the storage humidity range and the storage oxygen concentration range required by the articles placed in the fresh-keeping storage cavity are determined, the humidity and the oxygen concentration in the fresh-keeping storage cavity are obtained, the controlled atmosphere fresh-keeping system and the fan are controlled to operate so that the humidity of the fresh-keeping storage cavity is kept in the storage humidity range, the oxygen concentration in the fresh-keeping storage cavity is kept in the storage oxygen concentration range, the fresh-keeping storage cavity can meet the fresh-keeping requirement of the articles, the fresh-keeping effect of the articles is improved, and meanwhile, condensation is avoided.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic view of a refrigerator having a storage device according to an embodiment of the present invention.
Fig. 2 is another schematic view of a refrigerator having a storage device according to an embodiment of the present invention.
Fig. 3 is a perspective view of a portion of the components of the storage device shown in fig. 1.
Fig. 4 is an exploded view of a portion of the components of the storage device shown in fig. 3.
Fig. 5 is a partially exploded view of a portion of the components of the storage device shown in fig. 4.
Fig. 6 is a partially enlarged schematic illustration of the switching mechanism of the storage device shown in fig. 4 when the switching mechanism opens the first channel.
Fig. 7 is a partially enlarged schematic illustration of the switching mechanism of the storage device shown in fig. 4 when the switching mechanism opens the second channel.
Fig. 8 is an exploded schematic view of an air-conditioning membrane assembly of the storage device shown in fig. 1.
Fig. 9 is a flow chart of a control method of the storage device shown in fig. 1.
Fig. 10 is a detailed flowchart of a control method of the storage device shown in fig. 1.
Fig. 11 is a block diagram of a portion of the components of the storage device shown in fig. 1.
Detailed Description
The storage device of the embodiment of the invention adopts the controlled atmosphere technology to form the gas atmosphere meeting the storage requirement of the articles in the preservation box 60.
Fig. 1 is a schematic view of a refrigerator 100 having a storage device according to an embodiment of the present invention. Fig. 2 is another schematic view of a refrigerator 100 having a storage device according to an embodiment of the present invention. Fig. 3 is a perspective view of a portion of the components of the storage device shown in fig. 1. Fig. 4 is an exploded view of a portion of the components of the storage device shown in fig. 3. Fig. 9 is a flow chart of a control method of the storage device shown in fig. 1.
As shown in fig. 1 and 4, a storage device according to an embodiment of the present invention includes: a fresh box 60, an air conditioning fresh keeping system, and a fan 90. The fresh box 60 defines a fresh storage compartment 51 therein. The modified atmosphere preservation system is configured to reduce the oxygen concentration within the preservation storage cavity 51. The blower 90 is configured to controllably induce the flow of gas within the fresh food storage cavity 51 to the controlled atmosphere system and to draw the gas within the fresh food storage cavity 51 out of the fresh food box 60 to reduce the humidity of the fresh food storage cavity 51. The control method of the storage device provided by the embodiment of the invention comprises the following steps:
S102: determining a storage humidity range and a storage oxygen concentration range required for the articles placed in the fresh storage cavity 51;
s104: acquiring the humidity and the oxygen concentration in the fresh-keeping storage cavity 51;
s106: the controlled atmosphere system, blower 90, is controlled to operate so that the humidity of the fresh storage chamber 51 is maintained within the stored humidity range and the oxygen concentration of the fresh storage chamber 51 is maintained within the stored oxygen concentration range.
According to the storage device provided by the embodiment of the invention, the environment in the fresh-keeping storage cavity 51 is required to ensure the oxygen concentration requirement of the objects on one hand, and the humidity requirement of the objects on the other hand, and meanwhile, the problem of condensation caused by overhigh humidity of the fresh-keeping box 60 is avoided.
The humidity in the fresh storage compartment 51 may be obtained by the humidity detection unit 301 provided in the fresh storage compartment 51, and the oxygen concentration in the fresh storage compartment 51 may be obtained by the gas concentration detection unit 302 provided in the fresh storage compartment 51.
As shown in fig. 11, the storage device according to the embodiment of the present invention further includes a control unit 303 including a memory 331, a processor 332, and a machine executable program 330 stored on the memory 331 and running on the processor 332, and the processor 332 implements the control method of the storage device described above when executing the machine executable program 330.
In some embodiments, the blower 90 is configured such that the inlet communicates with the fresh-keeping storage cavity 51, a first channel 11 is provided between the outlet and the air-conditioning membrane assembly 30 of the air-conditioning fresh-keeping system to promote the air in the fresh-keeping storage cavity 51 to flow to the air-conditioning membrane assembly 30, and a second channel 12 is provided between the air-conditioning membrane assembly 30 and the outside of the fresh-keeping box 60 to draw the air in the fresh-keeping storage cavity 51 out of the fresh-keeping box 60 to reduce the humidity of the fresh-keeping storage cavity 51. The switching mechanism 200 is configured to controllably adjust the on-off state between the outlet of the blower 90 and the first and second channels 11, 12; the steps for controlling the operation of the air-conditioning fresh-keeping system and the fan 90 include: the controlled atmosphere preservation system, the blower 90, and the switching mechanism 200 are controlled to operate based on the stored humidity range, the stored oxygen concentration range, the humidity of the preservation storage cavity 51, the oxygen concentration of the preservation storage cavity 51, and the normal oxygen concentration. According to the storage device provided by the embodiment of the invention, the fresh-keeping storage cavity 51 is defined in the fresh-keeping box 60, the air-conditioning fresh-keeping system is arranged to pump part or all of oxygen in the air in the fresh-keeping storage cavity 51 out of the fresh-keeping storage cavity 51, so that a gas atmosphere beneficial to food fresh keeping is formed in the fresh-keeping storage cavity 51, meanwhile, the fan 90 is also arranged, the fan 90 is arranged to be communicated with the fresh-keeping storage cavity 51, the first channel 11 is arranged between the outlet and the air-conditioning film assembly 30 of the air-conditioning fresh-keeping system, the second channel 12 is arranged between the outlet and the outside of the fresh-keeping box 60, meanwhile, the switching mechanism 200 is arranged, the on-off state between the outlet of the fan 90 and the first channel 11 and the second channel 12 can be adjusted through the switching mechanism 200, the oxygen-reducing efficiency of the fresh-keeping storage cavity 51 can be improved when the outlet of the fan 90 is communicated with the first channel 11, the humidity of the fresh-keeping storage cavity 51 can be effectively reduced when the outlet of the fan 90 is communicated with the second channel 12, condensation can be avoided, the fan 90 can be conveniently switched between the auxiliary oxygen-reducing function and the dehumidifying function, the fresh-keeping storage cavity 51 can be conveniently realized, and the user experience can be further improved.
As shown in fig. 1 and 3, the modified atmosphere preservation system may include a modified atmosphere membrane module 30 and an air pump 40, wherein the modified atmosphere membrane module 30 is in communication with a preservation storage cavity 51; the pump 40 is configured to facilitate permeation of the gas within the fresh storage compartment 51 through the air regulating membrane assembly 30 to create a gas atmosphere within the fresh storage compartment 51 that facilitates fresh food.
The modified atmosphere preservation system adopts the modified atmosphere film 36 to form a gas atmosphere meeting the storage requirements of articles in the preservation storage cavity 51. The air-conditioning membrane 36 (also called an oxygen-enriched membrane) works by utilizing the difference in permeation rate of each component in the air when the components in the air pass through the air-conditioning membrane 36, and making the oxygen in the air pass through the air-conditioning membrane 36 preferentially under the driving of pressure difference. In the embodiment of the present application, the storage device uses the air-conditioning film 36 to exhaust oxygen, so that the oxygen concentration in the fresh-keeping storage cavity 51 is reduced, and a gas atmosphere beneficial to food preservation is realized. That is, the modified atmosphere preservation system adopts the principle of pumping out the gas from the preservation storage cavity 51 to pump out part or all of the oxygen in the preservation storage cavity 51, so that a gas atmosphere rich in nitrogen and lean in oxygen is formed in the preservation storage cavity 51 to facilitate food preservation. Those skilled in the art will appreciate that normal air components include (in volume percent, hereinafter the same): the atmosphere rich in nitrogen and lean in oxygen for food preservation in the application refers to an atmosphere with nitrogen content exceeding the nitrogen content in the normal air and oxygen content lower than the oxygen content in the normal air, and the atmosphere reduces the oxygen content in the fruit and vegetable preservation space, reduces the strength of aerobic respiration of the fruit and vegetable, ensures the basic respiration effect, and prevents anaerobic respiration of the fruit and vegetable, thereby achieving the purpose of long-term preservation of the fruit and vegetable.
As shown in fig. 1, an embodiment of the present invention further provides a refrigerator 100 having the storage device. The refrigerator 100 generally includes a cabinet 20, a door (not shown), and a refrigerating system (not shown). The interior of the case 20 defines a storage compartment which may be configured as a refrigerating compartment 27, a freezing compartment 25, a temperature changing compartment 26, etc. according to a refrigerating temperature. The refrigeration system may be a conventional compression refrigeration system that provides refrigeration to the storage compartment, for example, in the form of direct cooling and/or air cooling, to provide the storage compartment with a desired storage temperature. In some embodiments, the storage temperature of the refrigerator compartment 27 may be 2-9 ℃, or may be 4-7 ℃; the preservation temperature of the freezing chamber 25 may be-22 to-14 deg.c, or may be-20 to 16 deg.c. The freezing chamber 25 is disposed below the refrigerating chamber 27, and the temperature changing chamber 26 is disposed between the freezing chamber 25 and the refrigerating chamber 27. The temperature in freezer compartment 25 typically ranges from-14 c to-22 c. The variable temperature chamber 26 can be adjusted as needed to store the appropriate food. In this embodiment, the storage device may be disposed in any of the above-described storage compartments, preferably disposed in the refrigerating chamber 27 and the temperature changing chamber 26, and for example, the storage device may be disposed at a lower portion of the refrigerating chamber 27. The door is pivotally mounted to the housing 20 and is configured to open or close a storage compartment defined by the housing 20. The refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, an evaporator, and the like. A compressor compartment 24 is formed at the rear of the freezing chamber 25 of the refrigerator 100, and a compressor may be installed in the compressor compartment 24. The evaporator is configured to provide cooling directly or indirectly into the storage space.
The modified atmosphere membrane assembly 30 has a modified atmosphere membrane 36 and defines an oxygen-enriched gas collection chamber into which ambient gas (most of the oxygen) passes through the modified atmosphere membrane 36 when the pressure of the oxygen-enriched gas collection chamber is less than the pressure of the ambient. Specifically, the other side of the air-conditioning film 36 may be directly contacted with the fresh-keeping storage cavity 51, or may be contacted with a circulation flow channel (or a circulation space) connected to the fresh-keeping storage cavity 51, so that when the pressure of the oxygen-enriched gas collection cavity is smaller than that of the fresh-keeping storage cavity 51, the air in the fresh-keeping storage cavity 51 enters the oxygen-enriched gas collection cavity through the air-conditioning film 36, and under the condition of using the oxygen-enriched film, the oxygen in the fresh-keeping storage cavity 51 is extracted, so that the fresh-keeping storage cavity 51 forms an oxygen-depleted gas atmosphere.
As shown in fig. 2, the air pump 40 may be disposed in the press bin 24, and the inlet end of the air pump 40 is in communication with the oxygen-enriched gas collection chamber of the air conditioning membrane assembly 30 via the first pipeline 50, and is configured to pump the gas of the oxygen-enriched gas collection chamber outwards, so that at least part of the oxygen in the fresh-keeping storage cavity 51 enters the oxygen-enriched gas collection chamber through the air conditioning membrane 36, thereby reducing the oxygen concentration in the fresh-keeping storage cavity 51. The air pump 40 is configured to pump out the oxygen-enriched gas in the oxygen-enriched gas collection chamber, reduce the oxygen concentration in the fresh-keeping storage chamber 51, and further obtain a nitrogen-enriched and oxygen-depleted gas atmosphere in the fresh-keeping storage chamber 51 to facilitate food fresh-keeping. By disposing the air pump 40 in the press housing 24, the space of the press housing 24 can be fully utilized, and no additional space is occupied, so that the additional volume of the refrigerator 100 is not increased, and the refrigerator 100 can be made compact.
Fig. 5 is a partially exploded view of a portion of the components of the storage device shown in fig. 4. Fig. 6 is a partially enlarged schematic illustration of the switching mechanism 200 of the storage device shown in fig. 4 when the first channel 11 is opened. Fig. 7 is a partially enlarged schematic illustration of the switching mechanism 200 of the storage device shown in fig. 4 when the second channel 12 is opened. As previously described, the suction pump 40 is configured to be connected to the oxygen enriched gas collection chamber of the air conditioning membrane assembly 30 via the first conduit 50. In some embodiments, the switching mechanism 200 of the present embodiment includes a second pipeline 201, an air bag 202, and a spring 203. One end of the second pipeline 201 is connected with the air pump 40, and the other end is provided with a spring piece 203. The air bag 202 is formed on the second pipeline 201, and the elastic sheet 203 is disposed in the intersection area of the first channel 11 and the second channel 12 and configured to: when the air pump 40 pumps the second pipeline 201, the air bag 202 contracts to drive the elastic sheet 203 to move so as to open the first channel 11 and close the second channel 12, and when the air pump 40 does not pump the second pipeline 201, the air bag 202 resumes to drive the elastic sheet 203 to move so as to close the first channel 11 and open the second channel 12. The steps for controlling the operation of the air-conditioning fresh-keeping system and the fan 90 include: the on-off of the air pump 40, the blower 90 is controlled based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh storage compartment 51, the oxygen concentration of the fresh storage compartment 51, and the normal oxygen concentration.
According to the storage device provided by the embodiment of the invention, the switching mechanism 200 is arranged to comprise the second pipeline 201, the air bag 202 and the elastic piece 203, one end of the second pipeline 201 is connected with the air pump 40, the elastic piece 203 is arranged at the other end of the second pipeline 201, the air bag 202 is formed on the second pipeline 201, the elastic piece 203 is arranged in the intersection area of the first channel 11 and the second channel 12, whether the air pump 40 pumps air to the second pipeline 201 can be used for controlling the shrinkage and recovery of the air bag 202, and further, the elastic piece 203 can be controlled to be opened or closed simply, meanwhile, the air pump 40 of the air-conditioning fresh-keeping system is used as a power source of the switching mechanism 200, the thought is very ingenious, the number of components of the storage device is reduced, the cost is reduced, and the storage device is easy to arrange. That is, the structure of the switching mechanism 200 according to the embodiment of the present invention simplifies the control of the switching mechanism 200 and the air pump 40 to the operation of the air pump 40, i.e. the air pump 40 pumps air from the second pipeline 201 while the first channel 11 is opened and the second channel 12 is closed so that the fan 90 can achieve auxiliary oxygen reduction, and the air pump 40 does not pump air from the second pipeline 201 while the first channel 11 is closed and the second channel 12 is opened so that the fan 90 can achieve dehumidification. The second line 201 may be configured in parallel with the first line 50 while being independently controlled. Meanwhile, the control method of the storage device in the embodiment of the invention can be simplified to control the on/off of the air pump 40 and the fan 90 based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage cavity 51, the oxygen concentration of the fresh-keeping storage cavity 51 and the normal oxygen concentration, and only two component shells need to be controlled to realize the accurate control of the fresh-keeping environment of the fresh-keeping storage cavity 51.
As shown in fig. 5, the end of the second pipeline 201, where the elastic piece 203 is not provided, may be integrated on the first pipeline 50, so that the number of pipelines outside the fresh-keeping box 60 is only one, which is more beneficial to the arrangement of the storage device in the refrigerator 100. At this time, a three-way valve (not shown) may be further provided at the junction of the second pipe 201 and the first pipe 50 to make the communication between the suction pump 40 and the second pipe 201, the first pipe 50 more accurate.
In some embodiments, the step of determining a range of storage humidity and a range of storage oxygen concentration required to preserve the items placed within the storage cavity comprises:
acquiring triggering operation of placing articles into a fresh-keeping storage cavity by a user;
acquiring article information and displaying a display interface comprising a pre-judging article type selection window;
receiving a selection operation of a user on a display interface to obtain a determined article type;
and determining a storage humidity range and a storage oxygen concentration range corresponding to the object types according to a preset mapping relation, wherein the mapping relation prescribes the storage humidity range and the storage oxygen concentration range corresponding to the object types.
The triggering operation of the user to put the articles into the fresh storage cavity 51 can be obtained through keys provided on the refrigerator 100 or the fresh box 60. In other embodiments, the presence or absence of an item may also be determined by detecting a change in weight within the fresh storage cavity 51. For example, a weight sensor may be provided at the bottom of the drawer 63, and whether or not the article is placed in the fresh storage compartment 51 may be determined by the value detected by the weight sensor. As shown in fig. 11, the storage device further includes a trigger detection unit 305, and the trigger detection unit 305 may be, for example, a weight sensor.
A display screen having a display interface 306 for a user to view may be previously provided on the door body of the refrigerator 100. By acquiring the item information and displaying the pre-determined item type selection window using the display interface 306, the user can compare the acquired item information with the item type in the pre-determined item type selection window, and further can confirm the item type. The item information may be, for example, an image, composition, etc. of the item. Considering that image acquisition and recognition techniques are easier to implement than composition acquisition and recognition, it is preferable that the item information is an image of the item. At this time, the storage device further includes an image acquisition unit 304, such as a camera. In some embodiments, the step of obtaining item information and displaying a display interface containing a pre-determined item category selection window comprises: acquiring an image of an article to obtain a first image; a display interface 306 is displayed containing the first image and a pre-determined item category selection window. The image library of the plurality of article images may be stored in advance, and article type information may be set in advance for the article images. In order to make the image recognition more accurate, a plurality of article images, that is, a plurality of article images corresponding to one article type information, may be stored in the image library for each article. The first image obtained by the image obtaining unit 304 is compared with the object images in the image library to obtain one or more most probable object images, one or more object type information (for example, the names of the objects) are correspondingly obtained, and the object type information is displayed on the display interface 306 to form a pre-judging object type selection window.
The article type may be determined by detecting a touch operation applied to different article type information at different positions on the predetermined article type selection window. For example, images of spinach, cabbage, lettuce, coconut, bread and milk powder are stored in the image library in advance, spinach is put into the fresh-keeping storage cavity 51, the image acquisition unit 304 obtains a first image, after the first image is compared with the image library, a first image and a pre-judging article type selection window containing words of spinach, cabbage and lettuce are displayed in the display interface 306, and a user touches a spinach button to determine that the article type is spinach.
The map defines a storage humidity range and a storage oxygen concentration range corresponding to the type of the article. The storage humidity range and the storage oxygen concentration range are respectively set in one-to-one correspondence for each article type, so that the environmental control in the fresh-keeping storage cavity 51 can be more accurate. The storage humidity range generally has an upper storage humidity limit and a lower storage humidity limit, and may be a point value in a special case. The stored oxygen concentration range generally has an upper stored oxygen concentration value and a lower stored oxygen concentration value, and may be a point value in a special case.
In some embodiments, the step of controlling the on/off of the pump 40, blower 90 based on the stored humidity range, the stored oxygen concentration range, the humidity of the fresh storage compartment 51, the oxygen concentration of the fresh storage compartment 51, and the normal oxygen concentration comprises:
judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration;
when the stored oxygen concentration range is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity 51 is larger than the stored humidity range;
if yes, the air pump 40 is controlled not to operate, and the fan 90 is operated;
if not, the suction pump 40 is controlled to operate, and the fan 90 is controlled to operate.
In some embodiments, the step of controlling the on/off of the pump 40, blower 90 based on the stored humidity range, the stored oxygen concentration range, the humidity of the fresh storage compartment 51, the oxygen concentration of the fresh storage compartment 51, and the normal oxygen concentration further comprises:
when the stored oxygen concentration range is not less than the normal oxygen concentration, judging whether the oxygen concentration of the fresh-keeping storage cavity 51 is less than the stored oxygen concentration range;
when the oxygen concentration of the fresh-keeping storage cavity 51 is smaller than the stored oxygen concentration range, the air pump 40 is controlled not to operate, and the fan 90 is operated;
when the oxygen concentration of the fresh-keeping storage cavity 51 is not less than the stored oxygen concentration range, judging whether the humidity of the fresh-keeping storage cavity 51 is greater than the stored humidity range;
If yes, the air pump 40 is controlled not to operate, and the fan 90 is operated;
if not, the pump 40 is controlled not to operate, and the blower 90 is not operated.
Fig. 10 is a detailed flowchart of a control method of the storage device shown in fig. 1. The control method of the storage device provided by the embodiment of the invention comprises the following steps:
s202: the triggering operation of the user to place the article into the fresh storage cavity 51 is obtained.
S204: acquire item information and display a display interface 306 containing a pre-determined item category selection window.
S206: a user selection operation of the display interface 306 is received to obtain the determined item type.
S208: and determining a storage humidity range and a storage oxygen concentration range corresponding to the object types according to a preset mapping relation, wherein the mapping relation prescribes the storage humidity range and the storage oxygen concentration range corresponding to the object types.
S210: the humidity and oxygen concentration in the fresh storage compartment 51 is obtained.
S212: judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration; if yes, go to step S214; if not, go to step S220.
S214: if the judgment result of the step S212 is yes, judging whether the humidity of the fresh-keeping storage cavity 51 is greater than the storage humidity range; if yes, go to step S216; if not, go to step S218.
S216: if the determination result in step S214 is yes, the suction pump 40 is controlled not to operate, the second channel 12 is opened, the first channel 11 is closed, and the fan 90 is operated.
S218: if the determination result in step S214 is no, the operation of the suction pump 40 is controlled, the second passage 12 is closed, the first passage 11 is opened, and the fan 90 is operated.
S220: if the judgment result in the step S212 is no, judging whether the oxygen concentration in the fresh-keeping storage cavity 51 is less than the stored oxygen concentration range; if yes, go to step S222; if not, go to step S224.
S222: if the determination result in step S220 is yes, the suction pump 40 is controlled not to operate, the second channel 12 is opened, the first channel 11 is closed, and the fan 90 is operated.
S224: if the judgment result of step S220 is no, judging whether the humidity of the fresh-keeping storage cavity 51 is greater than the storage humidity range; if yes, go to step S222; if not, go to step S226.
S226: if the determination result in step S220 is no, the suction pump 40 is controlled not to operate, and the blower 90 is not operated.
Step S212 to step S226 describe in detail the process of controlling the on/off of the pump 40, the blower 90 based on the stored humidity range, the stored oxygen concentration range, the humidity of the fresh storage compartment 51, the oxygen concentration of the fresh storage compartment 51, and the normal oxygen concentration. The control method implemented in the order of steps S212 to S226 is smoother and the control is simpler. When the stored oxygen concentration range is smaller than the normal oxygen concentration, that is, the stored oxygen concentration upper limit value is smaller than the normal oxygen concentration, which means that the articles need to be stored in the low-oxygen environment, only the humidity of the fresh-keeping storage cavity 51 needs to be judged again, and whether the humidity of the fresh-keeping storage cavity 51 meets the stored humidity range needs to be judged, and the current oxygen concentration of the fresh-keeping storage cavity 51 does not need to be judged, because no matter whether the current oxygen concentration of the fresh-keeping storage cavity 51 is normal or low-oxygen, the operation of the air pump 40 and the operation of the fan 90 need to be controlled, so that the air conditioner fresh-keeping system is assisted by the fan 90 to reduce oxygen so as to maintain the fresh-keeping storage cavity 51 in the low-oxygen environment. When the stored oxygen concentration range is not less than the normal oxygen concentration, i.e. the stored oxygen concentration range includes the normal oxygen concentration or the stored oxygen concentration range is the normal oxygen concentration, which means that the article can be stored in the normal air/oxygen concentration environment, the oxygen concentration of the fresh-keeping storage cavity 51 needs to be controlled at the normal oxygen concentration first, and then the humidity control is considered.
The control method of the storage device of the embodiment of the invention further comprises the following steps:
after the preset duration, acquiring the image of the object again to obtain a second image;
comparing the second image with the first image;
and reminding a user to adjust the control when the difference characteristics of the second image and the first image exceed the preset difference range.
After running for a while according to step S216, step S218 or step S226, an image of the article is acquired again to check the control effect. The differential characteristics of the second image and the first image may be represented, for example, as gloss, shape, dispersibility, etc., and may be set according to different characteristics of the article. The preset difference range may be set after comprehensively evaluating the difference characteristics of the second image and the first image before and after the storage of the article for a preset period of time in advance with the acceptable storage humidity and the acceptable oxygen concentration. For example, for spinach, the difference characteristic may include color, gloss, leaf size, and the predetermined difference range may be set such that at least two of the color, gloss, leaf size have a small difference, e.g., a small difference in leaf size of spinach may be considered to be within 1.2-1.5 square centimeters of size.
The following describes a storage device and control thereof according to an embodiment of the present invention with reference to fig. 1 to 8.
With continued reference to fig. 1, a device receiving cavity 52 is also defined within the fresh box 60 of the present embodiment; the fan 90 and the air-conditioning film assembly 30 are arranged in the device accommodating cavity 52 at intervals, and the air-conditioning film assembly 30 is communicated with the fresh-keeping storage cavity 51. The device accommodating cavity 52 is further defined in the preservation box 60 of the storage device, and the fan 90 and the air-conditioning membrane assembly 30 are arranged in the device accommodating cavity 52 at intervals, so that the fan 90 and the air-conditioning membrane assembly 30 are arranged in the preservation box 60 in a simple structure, are easy to arrange, and are compact and reasonable in component arrangement. The fan 90 is preferably a centrifugal fan.
The fresh keeping box 60 of the embodiment of the invention is provided with a top cover plate 61, a middle partition plate 62 and a drawer part 63 which are arranged in sequence; the top cover 61 and the middle partition 62 define a device receiving chamber 52 therebetween, and the middle partition 62 and the drawer 63 define a fresh storage chamber 51 therebetween. According to the storage device provided by the embodiment of the invention, the fresh-keeping box 60 is provided with the top cover plate 61, the middle partition plate 62 and the drawer 63, the device accommodating cavity 52 is defined between the top cover plate 61 and the middle partition plate 62, the fresh-keeping storage cavity 51 is defined between the middle partition plate 62 and the drawer 63, the whole structure of the fresh-keeping box 60 is compact, and the influence of the fan 90 on the storage volume of the fresh-keeping storage cavity 51 and the refrigerator 100 is effectively reduced. The specific structure of the drawer 63 of the fresh box 60 and the mating structure between the drawer 63 and the middle partition 62 according to the embodiment of the present invention can be set as required. For example, in some examples, drawer 63 may be a bucket-like structure having a bottom wall panel and four side wall panels, front, back, left, right, open at the top and sealed to middle barrier 62, and may be drawn back and forth to access items within fresh storage compartment 51, etc. At this time, the middle partition 62 may be a top wall of the outer cylinder as the drawer 63, and the drawer 63 may be drawn back and forth with respect to the outer cylinder. For another example, in other examples, the drawer 63 may have a structure with a bottom wall plate and left and right rear side wall plates, the front opening of the drawer 63, the middle partition 62 and the drawer 63 may be integrally formed, and a pivot door is provided at the opening, where the drawer 63 is not drawn, and the articles are taken and placed into the fresh storage cavity 51 through the front opening. In this case, the drawer 63 may be formed by directly using the liner of the storage compartment.
The middle partition plate 62 of the preservation box 60 of the embodiment of the invention is provided with a first vent hole 71 and a second vent hole 72, and the first vent hole 71 and the second vent hole 72 are arranged at intervals; wherein the inlet of the blower 90 is abutted to the first vent hole 71, and the air-conditioning membrane assembly 30 is disposed above the second vent hole 72, so that the gas in the fresh-keeping storage cavity 51 enters the device accommodating cavity 52 through the first vent hole 71, and the gas in the device accommodating cavity 52 enters the fresh-keeping storage cavity 51 through the second vent hole 72, thereby forming an air flow passing through the air-conditioning membrane assembly 30. By providing the first vent hole 71 and the second vent hole 72, and respectively corresponding to the blower 90 and the air conditioning film assembly 30 above them, the fresh-keeping storage cavity 51 and the air conditioning film assembly 52 can be caused to flow, specifically, an air flow path can be formed which sequentially passes through the first vent hole 71, the first channel 11 and the second vent hole 72 and returns to the fresh-keeping storage cavity 51, that is, the blower 90 causes the air of the fresh-keeping storage cavity 51 to enter the device accommodating cavity 52 through the first vent hole 71, and causes the air in the device accommodating cavity 52 to enter the fresh-keeping storage cavity 51 through the second vent hole 72, thereby forming an air flow through the air conditioning film assembly 30. The first vent hole 71 may be small holes, and the number may be plural. The second ventilation holes 72 may be small holes, and may be plural in number.
The air conditioning membrane assembly 30 may be a flat-plate oxygen-enriched membrane assembly. Fig. 8 is an exploded schematic view of the modified atmosphere membrane module 30 of the storage device shown in fig. 1. The air conditioning membrane assembly 30 is in the form of a flat plate, and the air conditioning membrane assembly 30 further includes a support frame 32. The support frame 32 has a first surface and a second surface parallel to each other, is formed with a plurality of gas flow channels extending over the first surface and the second surface, respectively, and extending through the support frame 32 to communicate the first surface with the second surface, the plurality of gas flow channels collectively forming an oxygen-enriched gas collection chamber. The modified atmosphere membrane 36 may be two layers, one on each side of the support frame 32, to enclose the oxygen-enriched gas collection chamber. The support frame 32 further includes a gas extraction aperture 33 in communication with the plurality of gas flow channels and positioned on the rim to allow oxygen in the oxygen enriched gas collection chamber to be output. The suction hole 33 communicates with the suction pump 40. The air-conditioning film 36 can be mounted on the frame through the double faced adhesive tape 34, and then sealed through the sealant 35. When the air pump 40 is operated, the oxygen-enriched gas collecting cavity is in a negative pressure state, and oxygen in the air outside the air conditioning membrane assembly 30 continuously passes through the air conditioning membrane 36 to enter the oxygen-enriched gas collecting cavity.
The top cover plate 61 of the preservation box 60 of the embodiment of the invention is provided with a third vent hole 73. The fresh-keeping box 60 of the embodiment of the invention further comprises a diversion block 64 arranged between the top cover plate 61 and the middle partition plate 62, wherein a first opening 81 is formed in the side wall part of the diversion block 64, and a second opening 82 is formed in the top wall part; a second channel 12 is arranged between the outlet of the fan 90 and the first opening 81, and the second opening 82 is abutted with the third air vent 73. By providing the guide block 64, the air flow path of the blower 90 during dehumidification can be clearer, and the dehumidification process is smoother. The guide block 64 may have a cylindrical structure having only upper and lower through-holes of the side wall portions, and the guide block 64 may have a height such that a lower bottom surface abuts against an upper surface of the middle partition plate 62 and an upper top surface abuts against a lower surface of the top cover plate 61. As described above, the fresh box 60 may be disposed in the storage compartment of the refrigerator 100, and the third vent 73 is preferably formed in the top cover 61 adjacent to the air return opening 22 of the storage compartment, so that the air drawn out of the fresh box 60 by the blower 90 flows into the air return opening 22. By opening the third air vent 73 in the area of the top cover plate 61 adjacent to the air return opening 22 of the storage compartment, the moisture in the fresh-keeping storage cavity 51 pumped out by the fan 90 can flow out of the storage compartment through the air return opening 22, so that the moisture can be more effectively discharged, and meanwhile, the influence of dehumidification of the fresh-keeping box 60 on the humidity of the storage compartment can be reduced, thereby being more beneficial to the control of the humidity of the storage compartment and the storage of other objects in the storage compartment. As shown in fig. 1, the refrigerating chamber 27 has a return air hole 22 formed in the lower portion of the rear wall of the liner, and a third vent hole 73 is formed in the rear region of the top cover 61. The third vent 73 is preferably a larger hole, and may be one in number.
As shown in fig. 5 to 7, a damper 65 is disposed in the guide block 64 for opening and closing the air flow path between the first opening 81 and the second opening 82. In some embodiments, the guide block 64 of the embodiment of the present invention is provided with an inclined support plate 66, the inclined support plate 66 extends obliquely downward from the top surface of the guide block 64 near the first opening 81 to the bottom surface of the guide block 64 far from the first opening 81, and the inclined support plate 66 is provided with a third opening 83; the damper 65 is disposed above the inclined support plate 66 such that when the fan 90 is turned on and the outlet is in communication with the second passage 12, the damper 65 rotates upward to open the third opening 83 and thus the airflow path between the first opening 81 and the second opening 82. The damper 65 falls to block the third opening 83 when the blower 90 is turned off, thereby closing the airflow path between the first opening 81 to the second opening 82. By arranging the inclined support plate 66 and arranging the air door 65 above the inclined support plate 66, when the fan 90 runs and the outlet is communicated with the second channel 12, the air door 65 is conveniently lifted upwards under the stress, so that the first opening 81 and the second opening 82 are communicated, and moisture is pumped out by the fan 90 through the first vent hole 71 and then flows through the guide block 64 to the third vent hole 73 to be discharged; while when the blower 90 is shut off, the damper 65 will freely fall down to the inclined support plate 66, thereby sealing the device receiving chamber 52.
As shown in fig. 5 to 7, the first channel 11 includes a first air channel wall 101 and a second air channel wall 102, the second channel 12 includes a third air channel wall 103 and a fourth air channel wall 104, wherein one ends of the first air channel wall 101 and the second air channel wall 102 are adjacent to two ends of one side of the air conditioning membrane assembly 30, which is close to the fan 90, respectively, one ends of the third air channel wall 103 and the fourth air channel wall 104 are fixed to two sides of the first opening 81, one ends of the first air channel wall and the fourth air channel wall 104 are fixed to two sides of an outlet of the fan 90, respectively, and the other ends of the second air channel wall 102 and the third air channel wall 103 are connected; and the second pipeline 201 passes through the second air duct wall 102 or the third air duct wall 103, so that the elastic sheet 203 rotates in the horizontal plane to realize the adjustment of the on-off state between the outlet of the fan 90 and the first channel 11 and the second channel 12. By including the first channel 11 with the first channel wall 101 and the second channel wall 102, the second channel 12 includes the third channel wall 103 and the fourth channel wall 104, and the second channel wall 102 and the third channel wall 103 have one end connected, the first channel 11 and the second channel 12 can be conveniently defined between the blower 90, the air conditioning membrane assembly 30 and the flow guiding block 64, and a sufficient intersecting area is provided for the arrangement of the elastic sheet 203, so that the matching structure of the switching mechanism 200 and the blower 90, the first channel 11 and the second channel 12 is easier to realize. The fan 90 of the embodiment of the present invention may be a centrifugal fan, including a centrifugal fan and a volute, and the flow guiding block 64 is disposed between the air conditioning membrane assembly 30 and the volute. In fig. 6, the suction pump 40 is operated to suck air from the second pipe 201, the air bag 202 is contracted, the elastic piece 203 is rotated toward the second passage 12, the first passage 11 is opened, and the second passage 12 is closed. In fig. 7, the suction pump 40 is turned off, the airbag 202 is restored, the elastic piece 203 is rotated toward the first passage 11, the first passage 11 is closed, and the second passage 12 is opened. In addition, in order to make the movement of the elastic sheet 203 more powerful, a spring structure (not shown in the figure) with proper elastic deformation may be further provided between the second pipeline 201 and the third air duct wall 103, so that when the air bag 202 recovers deformation, the spring also recovers deformation to urge the elastic sheet 203 to move toward the first channel 11. As shown in fig. 7, a limiting portion 110 may be formed on the first air duct wall 101 to limit the movement of the elastic sheet 203 toward the first channel 11, and at the same time, ensure that the elastic sheet 203 seals the first channel 11 completely.
Assume that the humidity in the detected fresh storage compartment 51 is small and the oxygen concentration is normal:
when an article with high storage humidity and low storage oxygen concentration (such as spinach) is put into the fresh-keeping storage cavity 51, the second channel 12 is closed, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the article in the fresh-keeping storage cavity 51 without being discharged, and meanwhile, the fan 90 assists the air-conditioning fresh-keeping system to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as coconut) with high storage humidity and normal oxygen concentration are placed in the fresh-keeping storage cavity 51, the fan 90 and the air pump 40 are not operated, and the first channel 11 and the second channel 12 have no air flow, so that the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the articles in the fresh-keeping storage cavity 51 and not discharging the moisture, and the oxygen concentration in the fresh-keeping storage cavity 51 is kept normal.
When the articles (such as bread) with low storage humidity and low storage oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is closed, the first channel 11 is opened, the fan 90 and the air extracting pump 40 operate, and the air conditioning fresh-keeping system is assisted by the fan 90 to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as milk powder) with low storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the fan 90 and the air pump 40 do not operate, and the first channel 11 and the second channel 12 do not have airflow to flow, so that the humidity and the oxygen concentration of the fresh-keeping storage cavity 51 are maintained.
Assume that the detected fresh storage compartment 51 has a higher humidity and a lower oxygen concentration:
when an article with high storage humidity and low storage oxygen concentration (such as spinach) is put into the fresh-keeping storage cavity 51, the second channel 12 is closed, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the article in the fresh-keeping storage cavity 51 without being discharged, and meanwhile, the fan 90 assists the air-conditioning fresh-keeping system to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as coconuts) with high storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is opened first, the fan 90 is operated, the air pump 40 is not operated, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storage cavity 51 to rise, after the oxygen concentration of the fresh-keeping storage cavity 51 rises to be normal, the fan 90 and the air pump 40 are not operated, the first channel 11 and the second channel 12 do not have airflow, and the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the oxygen concentration in the fresh-keeping storage cavity 51 is kept normal.
When the articles with low storage humidity and low storage oxygen concentration (such as bread) are put into the fresh-keeping storage cavity 51, the second channel 12 is opened, the fan 90 operates to discharge the moisture in the fresh-keeping storage cavity 51, the second channel 12 is closed after the humidity of the fresh-keeping storage cavity 51 is reduced, then the first channel 11 is opened, the fan 90 and the air pump 40 operate, and the fan 90 assists the air-conditioning fresh-keeping system to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as milk powder) with low storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is opened first, the fan 90 is operated, the air pump 40 is not operated, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storage cavity 51 to rise and discharge the moisture, the second channel 12 and the fan 90 are closed after the oxygen concentration of the fresh-keeping storage cavity 51 rises to be normal and the humidity of the fresh-keeping storage cavity 51 is reduced, the air pump 40 is not operated, the first channel 11 and the second channel 12 do not have airflow, and the humidity and the oxygen concentration of the current fresh-keeping storage cavity 51 are maintained.
Assume that the humidity in the detected fresh storage compartment 51 is high and the oxygen concentration is normal:
When an article with high storage humidity and low storage oxygen concentration (such as spinach) is put into the fresh-keeping storage cavity 51, the second channel 12 is closed, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the article in the fresh-keeping storage cavity 51 without being discharged, and meanwhile, the fan 90 assists the air-conditioning fresh-keeping system to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as coconut) with high storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the fan 90 and the air pump 40 do not operate, the first channel 11 and the second channel 12 do not have airflow, the moisture volatilized by the articles remains in the fresh-keeping storage cavity 51, and the oxygen concentration in the fresh-keeping storage cavity 51 is kept normal.
When the articles with low storage humidity and low storage oxygen concentration (such as bread) are put into the fresh-keeping storage cavity 51, the second channel 12 is opened, the fan 90 operates to discharge the moisture in the fresh-keeping storage cavity 51, the second channel 12 is closed after the humidity of the fresh-keeping storage cavity 51 is reduced, then the first channel 11 is opened, the fan 90 and the air pump 40 operate, and the fan 90 assists the air-conditioning fresh-keeping system to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as milk powder) with low storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is opened, the fan 90 is operated, the air pump 40 is not operated, the moisture is discharged through the fan 90, the second channel 12 and the fan 90 are closed after the humidity of the fresh-keeping storage cavity 51 is reduced, the air pump 40 is not operated, no air flows in the first channel 11 and the second channel 12, and the humidity and the oxygen concentration of the current fresh-keeping storage cavity 51 are maintained.
Assume that the humidity in the detected fresh storage cavity 51 is small and the oxygen concentration is small:
when an article with high storage humidity and low storage oxygen concentration (such as spinach) is put into the fresh-keeping storage cavity 51, the second channel 12 is closed, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the article in the fresh-keeping storage cavity 51 without being discharged, and meanwhile, the fan 90 assists the air-conditioning fresh-keeping system to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as coconuts) with high storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is opened first, the fan 90 is operated, the air pump 40 is not operated, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storage cavity 51 to rise, after the oxygen concentration of the fresh-keeping storage cavity 51 rises to be normal, the fan 90 and the air pump 40 are not operated, the first channel 11 and the second channel 12 do not have airflow, and the humidity of the fresh-keeping storage cavity 51 is increased by keeping the moisture volatilized by the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the oxygen concentration in the fresh-keeping storage cavity 51 is kept normal.
When the articles with low storage humidity and low storage oxygen concentration (such as bread) are put into the fresh-keeping storage cavity 51, the second channel 12 is closed to maintain the low humidity in the fresh-keeping storage cavity 51, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, and the air conditioning fresh-keeping system is assisted by the fan 90 to reduce oxygen so as to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When the articles (such as milk powder) with low storage humidity and normal oxygen concentration are put into the fresh-keeping storage cavity 51, the second channel 12 is opened first, the fan 90 is operated, the air pump 40 is not operated, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storage cavity 51 to rise and discharge the moisture, the second channel 12 and the fan 90 are closed after the oxygen concentration of the fresh-keeping storage cavity 51 rises to be normal, the air pump 40 is not operated, and the first channel 11 and the second channel 12 do not have airflow to flow, so that the humidity and the oxygen concentration of the fresh-keeping storage cavity 51 at present are maintained.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (10)
1. The control method of the storage device comprises a preservation box, an air-conditioning preservation system and a fan, wherein the preservation box is limited with a preservation storage cavity; the air-conditioning preservation system is configured to reduce the oxygen concentration in the preservation storage cavity, and the fan is configured to controllably promote the air in the preservation storage cavity to flow to the air-conditioning preservation system and to pump the air in the preservation storage cavity out of the preservation box so as to reduce the humidity of the preservation storage cavity; the control method comprises the following steps:
determining a storage humidity range and a storage oxygen concentration range required by the articles placed in the fresh-keeping storage cavity;
acquiring the humidity and the oxygen concentration in the fresh-keeping storage cavity;
controlling the controlled atmosphere preservation system and the fan to operate so as to keep the humidity of the preservation storage cavity within the storage humidity range and keep the oxygen concentration of the preservation storage cavity within the storage oxygen concentration range;
the fan is configured that an inlet is communicated with the fresh-keeping storage cavity, a first channel is arranged between an outlet and an air-conditioning membrane component of the air-conditioning fresh-keeping system, and a second channel is arranged between the outlet and the outside of the fresh-keeping box; the storage device further comprises a switching mechanism which is configured to controllably adjust the on-off state between the outlet of the fan and the first channel and the second channel;
The modified atmosphere fresh-keeping system also comprises an air pump which is configured to be connected with the oxygen-enriched gas collection cavity of the modified atmosphere membrane assembly through a first pipeline; the switching mechanism comprises a second pipeline, an air bag and an elastic piece, wherein one end of the second pipeline is connected with the air pump, and the elastic piece is arranged at the other end of the second pipeline; the air bag is formed on the second pipeline, the elastic sheet is arranged in an intersecting area of the first channel and the second channel and is configured such that when the air pump pumps air to the second pipeline, the air bag contracts to drive the elastic sheet to move so as to open the first channel and close the second channel, and when the air pump does not pump air to the second pipeline, the air bag resumes to push the elastic sheet to move so as to close the first channel and open the second channel.
2. The control method of claim 1, wherein the step of determining a desired range of storage humidity and a desired range of storage oxygen concentration for the items placed within the fresh storage compartment comprises:
acquiring triggering operation of a user to put the article into the fresh-keeping storage cavity;
acquiring article information and displaying a display interface comprising a pre-judging article type selection window;
Receiving a selection operation of a user on the display interface to obtain a determined article type;
and determining the storage humidity range and the storage oxygen concentration range corresponding to the object types according to a preset mapping relation, wherein the mapping relation prescribes the storage humidity range and the storage oxygen concentration range corresponding to the object types.
3. The control method according to claim 2, wherein the step of acquiring the item information and displaying a display interface including a pre-determined item type selection window includes:
acquiring an image of the article to obtain a first image;
displaying the display interface including the first image and the prejudged article type selection window.
4. The control method according to claim 3, further comprising:
after controlling the controlled atmosphere preservation system and the fan to run for a preset period of time, acquiring the image of the object again to obtain a second image;
comparing the second image with the first image;
and reminding a user of adjusting the control when the difference characteristics of the second image and the first image exceed the preset difference range.
5. The control method according to claim 1, wherein,
the steps for controlling the controlled atmosphere fresh-keeping system and the fan to operate comprise the following steps: and controlling the controlled atmosphere preservation system, the fan and the switching mechanism to act based on the storage humidity range, the storage oxygen concentration range, the humidity of the preservation storage cavity, the oxygen concentration of the preservation storage cavity and the normal oxygen concentration.
6. The control method according to claim 5, wherein,
the steps for controlling the controlled atmosphere fresh-keeping system and the fan to operate comprise the following steps: and controlling the air pump and the switch of the fan based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage cavity, the oxygen concentration of the fresh-keeping storage cavity and the normal oxygen concentration.
7. The control method of claim 6, wherein the step of controlling the pump, the blower, and the switch based on the stored humidity range, the stored oxygen concentration range, the humidity of the fresh storage compartment, the oxygen concentration of the fresh storage compartment, and the normal oxygen concentration comprises:
judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration;
when the stored oxygen concentration range is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity is larger than the stored humidity range;
if yes, the air pump is controlled not to operate, and the fan is operated;
and if not, controlling the operation of the air pump, and operating the fan.
8. The control method of claim 7, wherein the step of controlling the pump, the blower switch based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh storage compartment, the oxygen concentration of the fresh storage compartment, and the normal oxygen concentration further comprises:
When the stored oxygen concentration range is not smaller than the normal oxygen concentration, judging whether the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range;
when the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range, the air pump is controlled to be not operated, and the fan is operated;
when the oxygen concentration of the fresh-keeping storage cavity is not less than the storage oxygen concentration range, judging whether the humidity of the fresh-keeping storage cavity is greater than the storage humidity range;
if yes, the air pump is controlled not to operate, and the fan is operated;
if not, the air pump is controlled to not operate, and the fan is not operated.
9. A storage device, comprising:
the humidity detection unit is used for acquiring the humidity in the fresh-keeping storage cavity;
the gas concentration detection unit is used for obtaining the oxygen concentration in the fresh-keeping storage cavity; and
a control unit comprising a memory, a processor and a machine executable program stored on the memory and running on the processor, and the processor implementing a control method of the storage device according to any one of claims 1 to 8 when executing the machine executable program.
10. A refrigerator characterized by having the storage device according to claim 9.
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