CN115164505A - Control method of storage device, storage device and refrigerator - Google Patents

Control method of storage device, storage device and refrigerator Download PDF

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Publication number
CN115164505A
CN115164505A CN202110361536.6A CN202110361536A CN115164505A CN 115164505 A CN115164505 A CN 115164505A CN 202110361536 A CN202110361536 A CN 202110361536A CN 115164505 A CN115164505 A CN 115164505A
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CN
China
Prior art keywords
fresh
oxygen concentration
storage
keeping
humidity
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Granted
Application number
CN202110361536.6A
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Chinese (zh)
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CN115164505B (en
Inventor
吕自成
赵彩云
缪丽燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
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Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202110361536.6A priority Critical patent/CN115164505B/en
Publication of CN115164505A publication Critical patent/CN115164505A/en
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Publication of CN115164505B publication Critical patent/CN115164505B/en
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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

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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 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 air-conditioning and fresh-keeping system and the fan to operate so that the humidity of the fresh-keeping storage cavity is kept in the storage humidity range and the oxygen concentration of the fresh-keeping storage cavity is kept in the storage oxygen concentration range. The invention further provides a storage device and a refrigerator. The control method of the storage device enables the fresh-keeping storage cavity to meet the fresh-keeping requirement of the articles, improves the fresh-keeping effect of the articles, and avoids condensation.

Description

Control method of storage device, storage device and refrigerator
Technical Field
The invention relates to the technical field of storage, in particular to a control method of a storage device, the storage device and a refrigerator.
Background
With the improvement of life quality, the requirements of consumers on the preservation of stored foods are higher and higher, and especially the requirements on the color, the taste and the like of the foods are higher and higher. Thus, the stored food should also ensure that the colour, mouthfeel, freshness etc. of the food remains as constant as possible during storage. Therefore, users also put higher demands on the preservation technology of refrigerators such as refrigerators. The existing refrigerator adopts the air-conditioning preservation technology to obtain a fresh-keeping storage cavity, but has the problem of low deoxidizing efficiency, and meanwhile, the existing fresh-keeping storage cavity has the problem that internal moisture cannot be discharged, so that the moisture is condensed in the fresh-keeping storage cavity, the time is longer, and the more water can be condensed in the fresh-keeping storage cavity, condensation is generated, and the product use is influenced.
Disclosure of Invention
The invention aims to provide a control method of a storage device, which can better 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 with reasonably compact arrangement of components.
Particularly, the invention provides a control method of a storage device, wherein the storage device comprises a preservation box limited with a preservation storage cavity, an air-conditioning preservation system and a fan; 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 gas in the preservation storage cavity to flow to the air-conditioning preservation system and pump the gas out of the preservation storage cavity to the outside 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;
and controlling the operation of the modified atmosphere preservation system and the fan 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.
Optionally, the step of determining a required storage humidity range and a required storage oxygen concentration range for the article placed in the fresh food storage chamber comprises:
acquiring a triggering operation of a user for putting articles into the fresh-keeping storage cavity;
acquiring article information and displaying a display interface containing a pre-judging article type selection window;
receiving 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 type of the article according to a preset mapping relation, wherein the mapping relation specifies the storage humidity range and the storage oxygen concentration range corresponding to the type of the article.
Optionally, the step of obtaining the item information and displaying the display interface including the pre-determined item type selection window includes:
acquiring an image of an article to obtain a first image;
and displaying a display interface containing the first image and a pre-judging article type selection window.
Optionally, the control method further includes:
controlling the controlled atmosphere preservation system and the fan to operate for a preset time, and then acquiring the image of the article again to obtain a second image;
comparing the second image with the first image;
and when the difference characteristic of the second image and the first image exceeds a preset difference range, reminding a user to adjust the control.
Optionally, the fan is configured such that the inlet communicates with the fresh-keeping storage cavity, the outlet is provided with a first channel with a modified atmosphere module of the modified atmosphere system, and a second channel with the outside of the fresh-keeping box; the storage device also 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 between the outlet of the fan and the second channel;
the steps of controlling the operation of the controlled atmosphere preservation system and the fan comprise: the actions of the modified atmosphere preservation system, the fan and the switching mechanism are controlled 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 modified atmosphere preservation system further comprises a suction pump configured to be connected with the oxygen-enriched gas collecting cavity of the modified atmosphere membrane module through a first pipeline; the switching mechanism comprises a second pipeline, an air bag and an elastic sheet, 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 sheet; the air bag is formed on the second pipeline, the elastic sheet is arranged in the intersection area of the first channel and the second channel and is configured to be contracted to drive the elastic sheet to move so as to open the first channel and close the second channel when the air pump pumps air to the second pipeline, and the air bag restores to drive the elastic sheet to move so as to close the first channel and open the second channel when the air pump does not pump air to the second pipeline;
the steps of controlling the operation of the controlled atmosphere preservation system and the fan comprise: the switch of the air suction pump and the fan is controlled 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 opening and closing of the air pump and the fan based on the stored humidity range, the stored 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 or not;
when the concentration range of the stored oxygen is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity is larger than the storage humidity range;
if yes, controlling the air extracting pump not to operate and the fan to operate;
if not, the air pump is controlled to operate, and the fan operates.
Optionally, the step of controlling the on/off of the air pump and the fan based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage chamber, the oxygen concentration of the fresh-keeping storage chamber and the normal oxygen concentration further comprises:
when the concentration range of the stored oxygen is not less than the normal oxygen concentration, judging whether the oxygen concentration of the fresh-keeping storage cavity is less than the concentration range of the stored oxygen or not;
when the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range, controlling the air pump not to operate and the fan to operate;
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 or not;
if so, controlling the air pump not to operate and the fan to operate;
if not, the air pump is controlled not to operate, and the fan does not operate.
The present invention also provides 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 acquiring the oxygen concentration in the fresh-keeping storage cavity; and
the control unit comprises a memory, a processor and a machine executable program which is stored on the memory and runs on the processor, and the control method of the storage device is realized when the processor executes 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 air conditioning and 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 of the fresh-keeping storage cavity is kept in the storage oxygen concentration range, the fresh-keeping storage cavity can meet the fresh-keeping requirements of the articles, the fresh-keeping effect of the articles is improved, and meanwhile condensation is avoided.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a refrigerator having a storage apparatus according to an embodiment of the present invention.
Fig. 2 is another schematic view of a refrigerator having a storage apparatus according to an embodiment of the present invention.
Fig. 3 is a perspective view of a part 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 perspective view of a part of the components of the storage device shown in fig. 4.
Fig. 6 is a partially enlarged schematic view of the switching mechanism of the storage device shown in fig. 4 when the first passage is opened.
Fig. 7 is a partially enlarged schematic view of the switching mechanism of the storage device shown in fig. 4 when the second path is opened.
Fig. 8 is an exploded view of the modified atmosphere module of the storage device shown in fig. 1.
Fig. 9 is a flowchart illustrating a method of controlling the storage device shown in fig. 1.
Fig. 10 is a detailed flowchart illustrating a control method of the storage device shown in fig. 1.
Fig. 11 is a block diagram showing a part of the components of the storage device shown in fig. 1.
Detailed Description
The storage device of the embodiment of the invention adopts the modified atmosphere preservation technology to form a 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 apparatus according to an embodiment of the present invention. Fig. 2 is another schematic view of the refrigerator 100 having the storage device according to one embodiment of the present invention. Fig. 3 is a perspective view of a part 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 flowchart illustrating a control method of the storage apparatus shown in fig. 1.
As shown in fig. 1 and 4, the storage device according to the embodiment of the present invention includes: a crisper 60, a modified atmosphere preservation system, and a fan 90. A fresh-keeping storage cavity 51 is defined in the fresh-keeping box 60. The modified atmosphere system is configured to reduce the concentration of oxygen within the fresh food storage chamber 51. The blower 90 is configured to controllably force the gas within the fresh food storage chamber 51 to flow to the modified atmosphere system and to draw the gas within the fresh food storage chamber 51 out of the crisper 60 to reduce the humidity of the fresh food storage chamber 51. The control method of the storage device provided by the embodiment of the invention comprises the following steps of:
s102: determining the range of storage humidity and the range of storage oxygen concentration required by the articles placed in the fresh-keeping storage cavity 51;
s104: acquiring the humidity and the oxygen concentration in the fresh-keeping storage cavity 51;
s106: the operation of the air-conditioning preservation system and the fan 90 is controlled, so that the humidity of the fresh-keeping storing cavity 51 is kept in the storage humidity range, and the oxygen concentration of the fresh-keeping storing cavity 51 is kept in the storage oxygen concentration range.
According to the storage device provided by the embodiment of the invention, the environment in the fresh-keeping storage cavity 51 needs to ensure the oxygen concentration requirement of the articles on one hand, the humidity requirement of the articles on the other hand, and the problem of condensation caused by overhigh humidity of the fresh-keeping box 60 is avoided, so that the control method of the storage device provided by the embodiment of the invention ensures the humidity and the oxygen concentration in the fresh-keeping storage cavity 51 by determining the storage humidity range and the storage oxygen concentration range required by the articles placed in the fresh-keeping storage cavity 51, obtains the humidity and the oxygen concentration in the fresh-keeping storage cavity 51, controls the controlled atmosphere fresh-keeping system and the fan 90 to operate to keep the humidity of the fresh-keeping storage cavity 51 in the storage humidity range, and keeps the oxygen concentration of the fresh-keeping storage cavity 51 in the storage oxygen concentration range, so that the fresh-keeping storage cavity 51 can meet the fresh-keeping requirement of the articles better, improves the fresh-keeping effect of the articles, and avoids condensation.
The humidity in the fresh-keeping storing cavity 51 can be obtained through the humidity detection unit 301 arranged in the fresh-keeping storing cavity 51, and the oxygen concentration in the fresh-keeping storing cavity 51 can be obtained through the gas concentration detection unit 302 arranged in the fresh-keeping storing cavity 51.
As shown in fig. 11, the storage device according to the embodiment of the present invention further includes a control unit 303, which includes a memory 331, a processor 332, and a machine-executable program 330 stored in the memory 331 and running on the processor 332, and the processor 332 executes the machine-executable program 330 to implement the foregoing control method of the storage device.
In some embodiments, the blower 90 is configured such that the inlet communicates with the freshner storage chamber 51, the outlet communicates with the atmosphere module 30 of the atmosphere system with a first passageway 11 disposed therebetween to facilitate gas flow from the freshner storage chamber 51 to the atmosphere module 30, and a second passageway 12 disposed therebetween to draw gas from the freshner storage chamber 51 out of the crisper 60 to reduce the humidity of the freshner storage chamber 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 and 12; the steps of controlling the operation of the controlled atmosphere freshness retaining system and the fan 90 comprise: the air-conditioning and freshness-keeping system, the fan 90 and the switching mechanism 200 are controlled to act based on the storage humidity range, the storage oxygen concentration range, the humidity of the freshness-keeping storage cavity 51, the oxygen concentration of the freshness-keeping 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 limited in the fresh-keeping box 60, the air-conditioning and fresh-keeping system is arranged to extract part or all of oxygen in the gas in the fresh-keeping storage cavity 51 from 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 in a mode that an inlet is communicated with the fresh-keeping storage cavity 51, a first channel 11 is arranged between an outlet and the air-conditioning and fresh-keeping membrane assembly 30 of the air-conditioning and fresh-keeping system, a second channel 12 is arranged between the outlet and the outside of the fresh-keeping box 60, 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 reduction efficiency of the fresh-keeping 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, so as to avoid the condensation generating and switching mechanism, and the fan 90 can be conveniently switched between the auxiliary oxygen reduction function and the dehumidification function, so that the environment of the fresh-keeping storage cavity 51 can be more easily kept, and the user can be improved.
As shown in FIGS. 1 and 3, the modified atmosphere preservation system can comprise a modified atmosphere membrane module 30 and a suction pump 40, wherein the modified atmosphere membrane module 30 is communicated with a preservation storage cavity 51; the air pump 40 is configured to cause air in the fresh food storage chamber 51 to permeate through the modified atmosphere module 30 to form an air atmosphere in the fresh food storage chamber 51 that is conducive to keeping food fresh.
The modified atmosphere preservation system adopts the modified atmosphere film 36 to form a gas atmosphere meeting the storage requirement of the articles in the preservation storage cavity 51. The operating principle of the modified atmosphere membrane 36 (also called oxygen-rich membrane) is that oxygen in the air preferentially passes through the modified atmosphere membrane 36 under the driving of pressure difference by utilizing the difference of permeation rate when each component in the air passes through the modified atmosphere membrane 36. In the embodiment of the invention, the storage device utilizes the modified atmosphere film 36 to discharge oxygen, so that the oxygen concentration of the fresh-keeping storage cavity 51 is reduced, and the gas atmosphere beneficial to food preservation is realized. That is to say, the modified atmosphere preservation system adopts the principle of extracting gas from the inside of the preservation storage cavity 51 to the outside, and extracts part or all of the oxygen in the preservation storage cavity 51, so that a nitrogen-rich and oxygen-poor gas atmosphere is formed in the preservation storage cavity 51 to be beneficial to food preservation. As is known to those skilled in the art, the normal air composition includes (in volume percent, the same applies hereinafter): the nitrogen-rich and oxygen-poor atmosphere beneficial to food fresh keeping refers to an atmosphere which is rich in nitrogen and poor in oxygen and is beneficial to food fresh keeping, namely an atmosphere which is rich in nitrogen and poor in oxygen and is higher than the nitrogen content in normal air and lower than the oxygen content in the normal air, and reduces the intensity of aerobic respiration of fruits and vegetables by reducing the content of oxygen in a fruit and vegetable storage space, and simultaneously ensures basic respiration, so that the fruits and vegetables are prevented from being subjected to anaerobic respiration, and the purpose of long-term fresh keeping of the fruits and vegetables is achieved.
As shown in fig. 1, an embodiment of the invention further provides a refrigerator 100 with the storage device. The refrigerator 100 generally includes a cabinet 20, a door (not shown), and a refrigerating system (not shown). The cabinet 20 defines a storage compartment therein, 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, by direct and/or air cooling, to provide the storage compartment with the desired storage temperature. In some embodiments, the storage temperature of the refrigeration compartment 27 may be 2 to 9 ℃, or may be 4 to 7 ℃; the storage temperature of the freezing chamber 25 may be-22 to-14 deg.c, or may be-20 to 16 deg.c. Freezing chamber 25 is provided below refrigerating chamber 27, and variable temperature chamber 26 is provided between freezing chamber 25 and refrigerating chamber 27. The temperature in the freezing chamber 25 is generally in the range of-14 ℃ to-22 ℃. The variable temperature chamber 26 can be adjusted as needed to store the appropriate food. In this embodiment, the locker may be provided in any of the locker compartments described above, and preferably disposed in the refrigerating compartment 27 and the temperature-changing compartment 26, and for example, the locker may be provided at a lower portion of the refrigerating compartment 27. The door body is pivotally mounted to the cabinet 20 and configured to open or close a storage compartment defined by the cabinet 20. The refrigeration system may be a refrigeration cycle system constituted by 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 directly or indirectly supply cooling energy into the storage space.
The modified atmosphere module 30 has a modified atmosphere membrane 36 and defines an oxygen-enriched gas collection chamber into which ambient gas (mostly oxygen) passes through the modified atmosphere membrane 36 when the pressure in the oxygen-enriched gas collection chamber is less than the pressure in the ambient environment. Specifically, the other side of the modified atmosphere film 36 can directly contact with the fresh-keeping storage cavity 51 or contact with a circulation flow channel (or a circulation space) communicated to the fresh-keeping storage cavity 51, so that when the pressure of the oxygen-enriched gas collection cavity is lower than that of the fresh-keeping storage cavity 51, gas in the air in the fresh-keeping storage cavity 51 enters the oxygen-enriched gas collection cavity through the modified atmosphere film 36, and under the condition that the oxygen-enriched film is used, oxygen in the fresh-keeping storage cavity 51 is pumped out, so that the fresh-keeping storage cavity 51 forms an oxygen-poor gas atmosphere.
As shown in fig. 2, a suction pump 40 may be disposed in the press cabin 24, and an inlet end of the suction pump 40 is in communication with the oxygen-enriched gas collecting chamber of the modified atmosphere module 30 via a first pipe 50 and configured to draw gas from the oxygen-enriched gas collecting chamber outwardly so that at least a portion of the oxygen in the freshner storage chamber 51 enters the oxygen-enriched gas collecting chamber through the modified atmosphere module 36, thereby reducing the oxygen concentration in the freshner storage chamber 51. The air pump 40 is configured to pump out the oxygen-enriched air in the oxygen-enriched air collection cavity, so as to reduce the oxygen concentration in the fresh-keeping storing cavity 51, and further obtain a nitrogen-enriched and oxygen-depleted air atmosphere in the fresh-keeping storing cavity 51 to facilitate the fresh keeping of food. By disposing the suction pump 40 in the press compartment 24, the space of the press compartment 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 structure of 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 view of the switching mechanism 200 of the storage device shown in fig. 4 when the first passage 11 is opened. Fig. 7 is a partially enlarged view illustrating the switching mechanism 200 of the storage device shown in fig. 4 when the second path 12 is opened. As previously described, the pump 40 is configured to be connected to the oxygen-rich gas collection chamber of the modified atmosphere module 30 via a first line 50. In some embodiments, the switching mechanism 200 of the present invention includes a second pipeline 201, an air bag 202, and a spring plate 203. One end of the second pipeline 201 is connected with the air pump 40, and the other end is provided with an elastic sheet 203. The air bag 202 is formed on the second pipeline 201, the elastic sheet 203 is arranged in the intersection area of the first channel 11 and the second channel 12, and is configured to: when the air pump 40 sucks air from the second pipeline 201, the air bag 202 contracts to drive the elastic piece 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 suck air from the second pipeline 201, the air bag 202 restores to push the elastic piece 203 to move so as to close the first channel 11 and open the second channel 12. The steps of controlling the operation of the controlled atmosphere freshness retaining system and the fan 90 comprise: the on-off of the air pump 40 and the fan 90 is controlled 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.
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 sheet 203, one end of the second pipeline 201 is connected with the air suction pump 40, the other end of the second pipeline is provided with the elastic sheet 203, the air bag 202 is formed on the second pipeline 201, and the elastic sheet 203 is arranged in the intersection area of the first channel 11 and the second channel 12, so that the contraction and recovery of the air bag 202 can be controlled by using whether the air suction pump 40 sucks air from the second pipeline 201, the elastic sheet 203 can be simply and conveniently controlled to open and close the first channel 11 and the second channel 12, meanwhile, the existing air suction pump 40 of the controlled atmosphere preservation system is used as a power source of the switching mechanism 200, the idea is ingenious, the number of components of the storage device is reduced, the cost is reduced, and the arrangement is easy. That is, the structure of the switching mechanism 200 according to the embodiment of the present invention enables the control of the switching mechanism 200 and the air pump 40 to be simplified in that the air pump 40 operates to pump air to the second pipeline 201 while the first passage 11 is opened and the second passage 12 is closed so that the blower 90 can achieve the auxiliary oxygen reduction, and the air pump 40 does not operate to pump air to the second pipeline 201 while the first passage 11 is closed and the second passage 12 is opened so that the blower 90 can achieve dehumidification. The second circuit 201 may be a parallel configuration with the first circuit 50 and independently controlled at the same time. Meanwhile, the control method of the storage device in the embodiment of the invention can be simplified as controlling the on and off of the air suction 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 the accurate control of the fresh-keeping environment of the fresh-keeping storage cavity 51 can be realized only by controlling two component housings.
As shown in fig. 5, the end of the second pipeline 201 not provided with the elastic sheet 203 may be integrated on the first pipeline 50, so that the number of the pipelines outside the crisper 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 pipeline 201 and the first pipeline 50 to more precisely communicate the suction pump 40 with the second pipeline 201 and the first pipeline 50.
In some embodiments, the step of determining a desired range of storage humidity and a desired range of storage oxygen concentration for an item placed within the fresh food storage chamber comprises:
acquiring a triggering operation of a user for putting articles into the fresh-keeping storage cavity;
acquiring article information and displaying a display interface containing a pre-judging article type selection window;
receiving 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 type of the article according to a preset mapping relation, wherein the mapping relation specifies the storage humidity range and the storage oxygen concentration range corresponding to the type of the article.
The triggering operation of the user for putting the articles into the fresh-keeping storing cavity 51 can be obtained through the keys arranged on the refrigerator 100 or the fresh-keeping box 60. In other embodiments, the presence or absence of the articles can be determined by detecting the weight change in the fresh food storage chamber 51. For example, a weight sensor may be provided at the bottom of the drawer 63, and whether or not the fresh food storage chamber 51 is filled with the fresh food may be determined based on a 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 with a display interface 306 for a user to view may be preset on the door of the refrigerator 100. By acquiring the article information and displaying the pre-judged article type selection window by using the display interface 306, the user can compare the acquired article information with the article type in the pre-judged article type selection window, and then can confirm the article type. The item information may be, for example, an image, composition, etc. of the item. In view of the fact that image acquisition and identification techniques are more easily implemented than composition acquisition and identification, 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 the item information and displaying the display interface including the predicted item type selection window includes: acquiring an image of an article to obtain a first image; a display interface 306 is displayed containing the first image and the predicted item type selection window. An image library of a plurality of article images may be stored in advance, and article type information may be set in advance in correspondence with the article images. In order to make the image recognition more accurate, a plurality of article images may be stored for each article in the image library, that is, the plurality of article images correspond to one article type information. The first image obtained by the image obtaining unit 304 is compared with the item images in the image library to obtain one or more most likely item images, one or more item type information (such as the names of the items) is obtained correspondingly, and the item type information is displayed on the display interface 306 to form a pre-determined item 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 pre-judged article type selection window. For example, images of spinach, chinese cabbage, coconut, bread and milk powder are stored in the image library in advance, the spinach is put into the fresh-keeping storage cavity 51, the first image is obtained by the image obtaining unit 304, after the first image is compared with the image library, the first image and a pre-judgment object type selection window containing characters of "spinach", "Chinese cabbage" and "cabbage" are displayed in the display interface 306, and the user touches the "spinach" button to determine that the object type is spinach.
The mapping specifies 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 to each article type, so that the environment in the fresh-keeping storage cavity 51 can be controlled more accurately. 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 limit and a lower stored oxygen concentration limit, and may be a point value in a special case.
In some embodiments, the step of controlling the opening and closing of the air pump 40 and the air blower 90 based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh keeping storage chamber 51, the oxygen concentration of the fresh keeping storage chamber 51, and the normal oxygen concentration comprises:
judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration or not;
when the concentration range of the stored oxygen is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity 51 is larger than the storage humidity range;
if yes, controlling the air pump 40 not to operate, and controlling the fan 90 to operate;
if not, the air pump 40 is controlled to operate, and the fan 90 operates.
In some embodiments, the step of controlling the opening and closing of the air pump 40 and the air blower 90 based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage chamber 51, the oxygen concentration of the fresh-keeping storage chamber 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 operates;
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, controlling the air pump 40 not to operate, and controlling the fan 90 to operate;
if not, the air pump 40 is controlled not to be operated, and the fan 90 is not operated.
Fig. 10 is a detailed flowchart illustrating 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 of:
s202: the triggering operation of the user for putting the articles into the fresh-keeping storing cavity 51 is obtained.
S204: obtain item information and display a display 306 containing a pre-determined item type selection window.
S206: user selection of the display interface 306 to obtain the determined item type is received.
S208: and determining a storage humidity range and a storage oxygen concentration range corresponding to the type of the article according to a preset mapping relation, wherein the mapping relation specifies the storage humidity range and the storage oxygen concentration range corresponding to the type of the article.
S210: the humidity and the oxygen concentration in the fresh-keeping storing cavity 51 are obtained.
S212: judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration or not; if yes, go to step S214; if not, go to step S220.
S214: if the judgment result in the step S212 is yes, judging whether the humidity of the fresh-keeping storage cavity 51 is larger than the storage humidity range; if yes, go to step S216; if not, go to step S218.
S216: if the determination result in the step S214 is yes, the air pump 40 is controlled not to operate, the second passage 12 is opened, the first passage 11 is closed, and the blower 90 operates.
S218: if the judgment result in the step S214 is negative, the air pump 40 is controlled to operate, the second passage 12 is closed, the first passage 11 is opened, and the fan 90 operates.
S220: if the judgment result in the step S212 is no, judging whether the oxygen concentration of the fresh-keeping storage chamber 51 is less than the storage oxygen concentration range; if yes, go to step S222; if not, go to step S224.
S222: if the determination result in the step S220 is yes, the air pump 40 is controlled not to operate, the second passage 12 is opened, the first passage 11 is closed, and the blower 90 operates.
S224: if the judgment result in the step S220 is negative, judging whether the humidity of the fresh-keeping storage cavity 51 is larger than the storage humidity range; if yes, go to step S222; if not, go to step S226.
S226: if the determination result in the step S220 is negative, the air pump 40 is controlled not to operate, and the fan 90 is controlled not to operate.
The detailed description of the process from step S212 to step S226 is the process of controlling the on/off of the air pump 40 and the air blower 90 based on the storage humidity range, the storage oxygen concentration range, the humidity of the fresh-keeping storage chamber 51, the oxygen concentration of the fresh-keeping storage chamber 51, and the normal oxygen concentration. The control method implemented in the sequence of step S212 to step S226 is more smooth and the control is simpler. When storing oxygen concentration scope and being less than normal oxygen concentration, store that oxygen concentration upper limit is less than normal oxygen concentration promptly, it needs to deposit in the low oxygen environment to show article, only need judge again that the humidity of fresh-keeping storing chamber 51 satisfies stores the humidity scope can, need not to judge the height of the current oxygen concentration of fresh-keeping storing chamber 51, because no matter the current oxygen concentration of fresh-keeping storing chamber 51 is normal or hypoxemia, all need control the operation of aspiration pump 40 and the operation of fan 90 this moment, in order to utilize the supplementary fresh-keeping system of controlled atmosphere of fan 90 to reduce oxygen and make in the fresh-keeping storing chamber 51 maintain the low oxygen environment. When the stored oxygen concentration range is not less than the normal oxygen concentration, that is, the stored oxygen concentration range includes the normal oxygen concentration or the stored oxygen concentration range is the normal oxygen concentration, it indicates 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 to be the normal oxygen concentration, and then the humidity control is considered.
The control method of the storage device in the embodiment of the invention further comprises the following steps:
after the preset time, acquiring the image of the article again to obtain a second image;
comparing the second image with the first image;
and when the difference characteristic of the second image and the first image exceeds a preset difference range, reminding a user to adjust the control.
After running for a period of time according to step S216, step S218 or step S226, the 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 expressed, 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 comprehensive evaluation of the difference characteristics of the second image and the first image before and after the article is stored 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 to have a slight difference in at least two of color, gloss, and leaf size, for example, a slight difference in leaf size of spinach may be considered to be within 1.2-1.5 square centimeters of size reduction.
The storage device and the control thereof according to the embodiment of the present invention will be described with reference to fig. 1 to 8.
With continued reference to FIG. 1, a crisper 60 according to an embodiment of the present invention also defines a device receiving cavity 52 therein; the fan 90 and the air-conditioning membrane assembly 30 are arranged in the device accommodating cavity 52 at intervals, and the air-conditioning membrane assembly 30 is communicated with the fresh-keeping storage cavity 51. The fresh-keeping box 60 of the storage device of the embodiment of the invention is also internally limited with the device accommodating cavity 52, and the fan 90 and the air-conditioning membrane assembly 30 are arranged in the device accommodating cavity 52 at intervals, so that the arrangement structure of the fan 90 and the air-conditioning membrane assembly 30 in the fresh-keeping box 60 is simple, the arrangement is easy, and the arrangement of components is more compact and reasonable. The fan 90 is preferably a centrifugal fan.
The preservation 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 up and down in sequence; the top cover plate 61 and the middle partition plate 62 define a device accommodating chamber 52 therebetween, and the middle partition plate 62 and the drawer part 63 define a fresh food storage chamber 51 therebetween. According to the storage device provided by the embodiment of the invention, the preservation box 60 is provided with the top cover plate 61, the middle partition plate 62 and the drawer part 63, the device accommodating cavity 52 is defined between the top cover plate 61 and the middle partition plate 62, and the preservation storage cavity 51 is defined between the middle partition plate 62 and the drawer part 63, so that the overall structure of the preservation box 60 is compact, and the influence of the arrangement of the fan 90 on the preservation storage cavity 51 and the storage volume of the refrigerator 100 is effectively reduced. The specific structure of the drawer 63 of the crisper 60 of the embodiment of the present invention and the matching structure between the drawer 63 and the middle partition 62 can be set as desired. For example, in some examples, the drawer 63 may be a bucket-shaped structure having a bottom wall panel and four side wall panels, a front wall panel, a rear wall panel, a left wall panel, a right wall panel, a left wall panel, a right wall panel, and a left wall panel, and is open at the top and sealed with the middle partition panel 62, and can be drawn back and forth to access the fresh food storage compartment 51. In this case, the middle partition 62 may be a top wall of the outer cylinder serving as the drawer 63, and the drawer 63 may be drawn back and forth with respect to the outer cylinder. For another example, in another example, the drawer 63 may be a structure having a bottom wall and three rear left and right side walls, the front side of the drawer 63 is open, and the partition plate 62 and the drawer 63 may be integrally formed, and a pivoting door is provided at the opening, so that the drawer 63 cannot be pulled out and put in and out of the fresh food storage chamber 51 through the front side. In this case, the drawer 63 may be formed by directly using the inner container 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 against the first vent hole 71, and the modified atmosphere module 30 is disposed above the second vent hole 72, so that the gas in the fresh food storage chamber 51 enters the device accommodating chamber 52 through the first vent hole 71, and the gas in the device accommodating chamber 52 enters the fresh food storage chamber 51 through the second vent hole 72, thereby forming a gas flow through the modified atmosphere module 30. By opening the first vent hole 71 and the second vent hole 72 and respectively corresponding the fan 90 and the air-conditioning membrane assembly 30 above them, the air in the fresh food storage chamber 51 and the device accommodating chamber 52 can be caused to flow, and 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 food storage chamber 51, that is, the fan 90 causes the air in the fresh food storage chamber 51 to enter the device accommodating chamber 52 through the first vent hole 71, and causes the air in the device accommodating chamber 52 to enter the fresh food storage chamber 51 through the second vent hole 72, thereby forming the air flow passing through the air-conditioning membrane assembly 30. The first ventilation hole 71 may be a small hole, and the number may be plural. The second venting hole 72 may also be a small hole, and the number may be plural.
The controlled atmosphere membrane module 30 can be a flat oxygen-enriched membrane module. Fig. 8 is an exploded schematic view of the modified atmosphere module 30 of the storage device shown in fig. 1. The modified atmosphere module 30 is in the form of a flat plate, and the modified atmosphere module 30 further comprises a support frame 32. The support frame 32 has a first surface and a second surface parallel to each other, and is formed with a plurality of gas flow passages extending on the first surface and the second surface, respectively, and penetrating the support frame 32 to communicate the first surface and the second surface, the plurality of gas flow passages collectively forming an oxygen-enriched gas collecting chamber. The modified atmosphere membrane 36 may be two layers, which are respectively laid on both sides of the supporting frame 32 to enclose the oxygen-enriched gas collection chamber. The support frame 32 further includes a pumping hole 33 communicating with the plurality of gas flow passages, provided 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 modified atmosphere film 36 can be first attached to the frame by the double-sided adhesive 34 and then sealed by the sealant 35. When the air pump 40 is operated, the oxygen-enriched gas collection cavity is in a negative pressure state, and oxygen in the air outside the modified atmosphere module 30 continuously permeates the modified atmosphere membrane 36 and enters the oxygen-enriched gas collection 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 also has a flow guide block 64 which is arranged between the top cover plate 61 and the middle partition plate 62, wherein the side wall part of the flow guide block 64 is provided with a first opening 81, and the top wall part is provided with a second opening 82; a second channel 12 is arranged between the outlet of the fan 90 and the first opening 81, and the second opening 82 is butted with the third ventilating hole 73. Through setting up water conservancy diversion piece 64, the gas flow path when can making fan 90 dehumidify is clearer, and the dehumidification process is more smooth and easy. The deflector block 64 may be a cylindrical structure having only upper and lower through openings in the sidewall portions, and the height of the deflector block 64 is such that the lower bottom surface abuts against the upper surface of the middle partition plate 62 and the upper top surface abuts against the lower surface of the top cover plate 61. As mentioned above, the crisper 60 can be disposed in the storage compartment of the refrigerator 100, and the third ventilation hole 73 is preferably opened in the region of the top cover plate 61 adjacent to the air return opening 22 of the storage compartment, so that the air pumped out of the crisper 60 by the blower 90 flows into the air return opening 22. Through set up the third ventilation hole 73 in the area of the return air inlet 22 of the neighbouring storing room of lamina tecti 61, can make the moisture in the fresh-keeping storing chamber 51 that the fan 90 was taken out flow out the storing room through the return air inlet 22, can discharge the moisture more effectively, can reduce the influence of the dehumidification of preservation box 60 to storing room humidity simultaneously, more do benefit to the control of the humidity of storing room and the storage of the indoor other article of storing room. As shown in fig. 1, the refrigerating compartment 27 is opened with the return air port 22 at a lower portion of the rear wall of the inner container, and the third vent hole 73 is correspondingly opened at a rear region of the top cover plate 61. The third venting holes 73 are preferably larger holes, and may be one in number.
As shown in fig. 5 to 7, a damper 65 is disposed in the baffle block 64 according to the embodiment of the present invention, and is used for opening and closing an airflow path between the first opening 81 and the second opening 82. In some embodiments, an inclined support plate 66 is disposed in the flow guide block 64 according to the embodiments of the present invention, the inclined support plate 66 extends from the top surface of the flow guide block 64 close to the first opening 81 to the bottom surface of the flow guide block 64 far away from the first opening 81, and a third opening 83 is formed in the inclined support plate 66; the damper 65 is disposed above the inclined support plate 66 such that when the fan 90 is turned on and the outlet communicates with the second passage 12, the damper 65 is rotated upward to open the third opening 83 and thus open the air flow path between the first opening 81 and the second opening 82. The damper 65 falls to shield the third opening 83 when the fan 90 is closed, thereby closing the air flow path between the first opening 81 to the second opening 82. By arranging the inclined support plate 66, the air door 65 is arranged above the inclined support plate 66, so that when the fan 90 runs and the outlet is communicated with the second channel 12, the air door 65 is conveniently stressed to be lifted upwards, the first opening 81 is communicated with the second opening 82, and moisture is pumped out by the fan 90 through the first vent hole 71, flows through the flow guide block 64 and reaches the third vent hole 73 and is discharged; and when the blower 90 is closed, the damper 65 is free to fall to the inclined support plate 66, thereby sealing the device accommodating 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, and the second channel 12 includes a third air channel wall 103 and a fourth air channel wall 104, wherein one end of the first air channel wall 101 and one end of the second air channel wall 102 are respectively adjacent to two ends of one side of the gas-regulating membrane assembly 30 close to the fan 90, one end of the third air channel wall 103 and one end of the fourth air channel wall 104 are respectively fixed at two sides of the first opening 81, the other end of the first air channel wall and the other end of the fourth air channel wall 104 are respectively fixed at two sides of the outlet of the fan 90, 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 adjust the on-off state between the outlet of the fan 90 and the first channel 11 and the second channel 12. By providing the first channel 11 including the first channel wall 101 and the second channel wall 102, the second channel 12 including the third channel wall 103 and the fourth channel wall 104, and the second channel wall 102 and the third channel wall 103 having one end connected, the first channel 11 and the second channel 12 can be conveniently defined between the fan 90, the modified atmosphere module 30 and the flow guide block 64, and sufficient intersection area is provided for the arrangement of the elastic sheet 203, so that the matching structure of the switching mechanism 200 with the fan 90, the first channel 11 and the second channel 12 can be easily realized. The fan 90 of the embodiment of the present invention may be a centrifugal fan, which includes a centrifugal fan and a volute, and the flow guide block 64 is disposed between the modified atmosphere module 30 and the volute. In fig. 6, the air pump 40 is operated to pump air into the second pipeline 201, the air bag 202 is contracted, the elastic piece 203 rotates toward the second passage 12, the first passage 11 is opened, and the second passage 12 is closed. In fig. 7, the air pump 40 is turned off, the air bag 202 is restored, the spring plate 203 is rotated toward the first passage 11, the first passage 11 is closed, and the second passage 12 is opened. Furthermore, in order to make the movement of the elastic sheet 203 more powerful, an elastically deformed appropriate spring structure (not shown in the figure) may be further provided between the second pipeline 201 and the third air duct wall 103, so that when the deformation of the air bag 202 is restored, the spring also restores the deformation to urge the elastic sheet 203 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 simultaneously, to ensure that the elastic sheet 203 completely closes the first channel 11.
Assuming that the detected humidity in the fresh-keeping storage cavity 51 is small and the oxygen concentration is normal:
when articles with high storage humidity and low storage oxygen concentration (such as spinach) 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 pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen concentration of the fresh-keeping storage cavity 51.
When an object with high storage humidity and normal storage oxygen concentration (for example, coconut) is placed into the fresh-keeping storing cavity 51, the blower 90 and the air pump 40 are not operated, and no air flow flows in both the first channel 11 and the second channel 12, so that the humidity of the fresh-keeping storing cavity 51 is increased by keeping the moisture volatilized from the object in the fresh-keeping storing cavity 51 without being discharged outside, and the oxygen concentration in the fresh-keeping storing cavity 51 is maintained normal.
When 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 pump 40 are operated, and the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen to reduce the oxygen concentration of the fresh-keeping storage cavity 51.
When an object (such as milk powder) with low storage humidity and normal storage oxygen concentration is put into the fresh-keeping storage cavity 51, the blower 90 and the air pump 40 are not operated, and no air flow flows through both the first channel 11 and the second channel 12, so as to maintain the humidity and the oxygen concentration of the fresh-keeping storage cavity 51 at present.
Suppose that the detected humidity in the fresh-keeping storing cavity 51 is large and the oxygen concentration is small:
when articles with high storage humidity and low storage oxygen concentration (such as spinach) 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 pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen concentration of the fresh-keeping storage cavity 51.
When articles (such as coconuts) with high storage humidity and normal oxygen concentration are put into the fresh-keeping storing cavity 51, the second channel 12 is opened first, the fan 90 operates, the air pump 40 does not operate, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storing cavity 51 to rise, after the oxygen concentration of the fresh-keeping storing cavity 51 rises to be normal, the fan 90 and the air pump 40 do not operate, the first channel 11 and the second channel 12 both have no air flow, the humidity of the fresh-keeping storing cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storing cavity 51 without being discharged outside, and meanwhile, the oxygen concentration in the fresh-keeping storing cavity 51 is maintained to be normal.
When 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 opened, the fan 90 runs to discharge 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 suction pump 40 run, and the oxygen concentration of the fresh-keeping storage cavity 51 is reduced by oxygen reduction of the air conditioning and fresh-keeping system assisted by the fan 90.
When an article (such as milk powder) with low storage humidity and normal storage oxygen concentration is put into the fresh-keeping storage cavity 51, the second channel 12 is opened first, the fan 90 is operated, the air suction pump 40 is not operated, the fan 90 disturbs air circulation to enable the oxygen concentration of the fresh-keeping storage cavity 51 to rise back and the moisture to be discharged, the second channel 12 and the fan 90 are closed after the oxygen concentration of the fresh-keeping storage cavity 51 rises back to normal and the humidity of the fresh-keeping storage cavity 51 is reduced, the air suction pump 40 is not operated, no air flow flows through the first channel 11 and the second channel 12, and the humidity and the oxygen concentration of the fresh-keeping storage cavity 51 at present are maintained.
Suppose that the detected humidity in the fresh-keeping storage cavity 51 is relatively large and the oxygen concentration is normal:
when articles with high storage humidity and low storage oxygen concentration (such as spinach) 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 pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen concentration of the fresh-keeping storage cavity 51.
When an object with high storage humidity and normal storage oxygen concentration (for example, coconut) is placed in the fresh-keeping storing cavity 51, the fan 90 and the air pump 40 are not operated, no air flow flows in the first channel 11 and the second channel 12, the volatile moisture of the object is retained in the fresh-keeping storing cavity 51, and the oxygen concentration in the fresh-keeping storing cavity 51 is maintained normal.
When articles (such as bread) with low storage humidity and low storage oxygen concentration are placed into the fresh-keeping storage cavity 51, the second channel 12 is opened, the fan 90 runs to discharge 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 suction pump 40 run, and the fan 90 assists the air conditioning system to reduce oxygen concentration in the fresh-keeping storage cavity 51.
When an article (such as milk powder) with low storage humidity and normal storage oxygen concentration is 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, 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 flow flows in the first channel 11 and the second channel 12, and the humidity and the oxygen concentration of the fresh-keeping storage cavity 51 are maintained at present.
If the detected humidity in the fresh-keeping storing cavity 51 is smaller and the oxygen concentration is smaller:
when articles with high storage humidity and low storage oxygen concentration (such as spinach) 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 pump 40 are operated, the humidity of the fresh-keeping storage cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storage cavity 51 without being discharged outside, and meanwhile, the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen concentration of the fresh-keeping storage cavity 51.
When articles (such as coconuts) with high storage humidity and normal oxygen concentration are put into the fresh-keeping storing cavity 51, the second channel 12 is opened first, the fan 90 operates, the air pump 40 does not operate, the air circulation is disturbed by the fan 90 to enable the oxygen concentration of the fresh-keeping storing cavity 51 to rise, after the oxygen concentration of the fresh-keeping storing cavity 51 rises to be normal, the fan 90 and the air pump 40 do not operate, the first channel 11 and the second channel 12 both have no air flow, the humidity of the fresh-keeping storing cavity 51 is increased by keeping the volatilized moisture of the articles in the fresh-keeping storing cavity 51 without being discharged outside, and meanwhile, the oxygen concentration in the fresh-keeping storing cavity 51 is maintained to be normal.
When articles (such as bread) with low storage humidity and low storage oxygen concentration are put into the fresh-keeping storing cavity 51, the second channel 12 is closed to maintain the low humidity in the fresh-keeping storing cavity 51, the first channel 11 is opened, the fan 90 and the air pump 40 are operated, and the fan 90 assists the air-conditioning and fresh-keeping system to reduce oxygen concentration in the fresh-keeping storing cavity 51.
When an article (such as milk powder) with low storage humidity and normal storage oxygen concentration is put into the fresh-keeping storing cavity 51, the second channel 12 is opened first, the fan 90 operates, the air pump 40 does not operate, the fan 90 disturbs air circulation to raise the oxygen concentration of the fresh-keeping storing cavity 51 and discharge moisture, the second channel 12 and the fan 90 are closed after the oxygen concentration of the fresh-keeping storing cavity 51 is raised to be normal, the air pump 40 does not operate, and the first channel 11 and the second channel 12 both have no air flow, so that the humidity and the oxygen concentration of the fresh-keeping storing cavity 51 at present are maintained.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A control method of a storage device comprises a preservation box, a modified atmosphere preservation system and a fan, wherein the preservation box is limited with a preservation storage cavity; the modified atmosphere system is configured to reduce the concentration of oxygen within the fresh storage cavity, and the blower is configured to controllably cause gas within the fresh storage cavity to flow to the modified atmosphere system and to draw gas within the fresh storage cavity out of the crisper to reduce the humidity of the fresh 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;
and controlling the air-conditioning and fresh-keeping system and the fan to operate so that the humidity of the fresh-keeping storage cavity is kept in the storage humidity range and the oxygen concentration of the fresh-keeping storage cavity is kept in the storage oxygen concentration range.
2. The control method of claim 1, wherein the step of determining a required storage humidity range and a required storage oxygen concentration range for the item placed within the fresh food storage chamber comprises:
acquiring a triggering operation of a user for putting the articles into the fresh-keeping storage cavity;
acquiring article information and displaying a display interface containing a pre-judging article type selection window;
receiving 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 article type according to a preset mapping relation, wherein the mapping relation specifies the storage humidity range and the storage oxygen concentration range corresponding to the article type.
3. The control method according to claim 2, wherein the step of acquiring the item information and displaying the display interface including the predicted item type selection window includes:
acquiring an image of the article to obtain a first image;
and displaying the display interface comprising the first image and the pre-judged article type selection window.
4. The control method according to claim 3, further comprising:
controlling the controlled atmosphere preservation system and the fan to operate for a preset time, and then obtaining the image of the article again to obtain a second image;
comparing the second image and the first image;
and when the difference characteristic of the second image and the first image exceeds a preset difference range, reminding a user to adjust control.
5. The control method of claim 1, wherein the blower is configured such that the inlet is in communication with the fresh food storage chamber, the outlet is in communication with a modified atmosphere module of the modified atmosphere system with a first passageway and with an exterior of the crisper with a second passageway; 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 between the outlet of the fan and the second channel;
the step of controlling the controlled atmosphere preservation system and the fan to operate comprises 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 fresh-keeping storage cavity, the oxygen concentration of the fresh-keeping storage cavity and the normal oxygen concentration.
6. The control method of claim 5, wherein the modified atmosphere preservation system further comprises a gas pump configured to be connected to the oxygen-enriched gas collection chamber of the modified atmosphere membrane module via a first conduit; the switching mechanism comprises a second pipeline, an air bag and an elastic sheet, 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 sheet; the air bag is formed on the second pipeline, the elastic sheet is arranged in the intersection area of the first channel and the second channel and is configured to be contracted to drive the elastic sheet to move so as to open the first channel and close the second channel when the air pump pumps air to the second pipeline, and the air bag restores to push the elastic sheet to move so as to close the first channel and open the second channel when the air pump does not pump air to the second pipeline;
the step of controlling the controlled atmosphere preservation system and the fan to operate comprises the following steps: and controlling the air pump and the fan 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.
7. The control method of claim 6, wherein the step of controlling the on and off of the air pump and the air blower based on the stored humidity range, the stored oxygen concentration range, the humidity of the fresh food storage chamber, the oxygen concentration of the fresh food storage chamber, and the normal oxygen concentration comprises:
judging whether the stored oxygen concentration range is smaller than the normal oxygen concentration;
when the concentration range of the stored oxygen is smaller than the normal oxygen concentration, judging whether the humidity of the fresh-keeping storage cavity is larger than the storage humidity range;
if yes, controlling the air pump not to operate and the fan to operate;
if not, controlling the air pump to operate and the fan to operate.
8. The control method of claim 7, wherein the step of controlling the pump and the fan to turn on and off based on the stored humidity range, the stored oxygen concentration range, the fresh food storage chamber humidity, the fresh food storage chamber oxygen concentration, 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 is less than the stored oxygen concentration range or not;
when the oxygen concentration of the fresh-keeping storage cavity is smaller than the stored oxygen concentration range, controlling the air pump not to operate and the fan to operate;
when the oxygen concentration of the fresh-keeping storage cavity is not less than the stored oxygen concentration range, judging whether the humidity of the fresh-keeping storage cavity is greater than the stored humidity range;
if yes, controlling the air pump not to operate, and operating the fan;
if not, controlling the air pump not to operate, and controlling the fan not to operate.
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 acquiring 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 the method of controlling a storage device according to any one of claims 1 to 8 when executing the machine-executable program.
10. A refrigerator characterized by having a storage device according to claim 9.
CN202110361536.6A 2021-04-02 2021-04-02 Control method of storage device, storage device and refrigerator Active CN115164505B (en)

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