CN113865193A - Fresh-keeping refrigerator and control method thereof - Google Patents

Fresh-keeping refrigerator and control method thereof Download PDF

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Publication number
CN113865193A
CN113865193A CN202111212337.5A CN202111212337A CN113865193A CN 113865193 A CN113865193 A CN 113865193A CN 202111212337 A CN202111212337 A CN 202111212337A CN 113865193 A CN113865193 A CN 113865193A
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CN
China
Prior art keywords
drawer
humidity
preservation
fresh
keeping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111212337.5A
Other languages
Chinese (zh)
Inventor
刘畅
焦雯姝
程星光
陈佳弘
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202111212337.5A priority Critical patent/CN113865193A/en
Publication of CN113865193A publication Critical patent/CN113865193A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable 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
    • 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
    • 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
    • F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
    • 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
    • F25D2600/02—Timing
    • 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 discloses a fresh-keeping refrigerator and a control method thereof, wherein the fresh-keeping refrigerator comprises: the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air; the air conditioning component is used for separating oxygen from the preservation space or vacuumizing the preservation space; the humidity adjusting component is arranged on the preservation drawer and is used for adjusting the humidity in the preservation drawer; wherein, humidity control assembly is provided with different gears, and different gears correspond to different hydrone permeabilities. The invention solves the problem that the humidity is reduced in the process of reducing the oxygen of the preservation box in the prior art, so that the humidity in the preservation drawer is maintained at a proper level, and the food freshness is improved.

Description

Fresh-keeping refrigerator and control method thereof
Technical Field
The invention relates to the technical field of refrigerators, in particular to a fresh-keeping refrigerator and a control method thereof.
Background
With the continuous improvement of living standard and the improvement of dietary structure, people have higher and higher requirements on freshness of fruits and vegetables and durability of food preservation, so that the fruits and vegetables are required to be kept fresh in sense, and nutrient substances of the fruits and vegetables are required to be reserved to the maximum extent.
At present, the air-conditioning preservation technology can generally meet the requirements of people, and generally, the oxygen concentration in the fruit and vegetable drawer is adjusted by using air-conditioning equipment. The aim of inhibiting the aerobic respiration of the fruits and vegetables is achieved by reducing the oxygen concentration in the fruit and vegetable box.
Through the air conditioning technology, the air in the preservation box becomes thin and becomes a low-oxygen environment, the oxidation of substances can be reduced or avoided, and the preservation effect is realized. But the oxygen is pumped away, and simultaneously, part of water vapor is also taken away, so that the humidity in the preservation box is reduced, and the preservation effect of the fruits and the vegetables is adversely affected.
Aiming at the problem that humidity is reduced in the process of reducing oxygen of the preservation box in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a preservation refrigerator and a control method thereof, which at least solve the problem that humidity is reduced in the process of reducing oxygen in a preservation box in the prior art.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a freshness refrigerator including:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air;
the air conditioning component is used for separating oxygen from the preservation space or vacuumizing the preservation space;
the humidity adjusting component 1 is arranged on the preservation drawer and is used for adjusting the humidity in the preservation drawer; wherein, humidity control component 1 is provided with different gears, and different gears correspond to different water molecule permeabilities.
Further, the humidity adjustment assembly 1 includes: a moisture permeable film 2 including a first portion 21 and a second portion 22; the permeability of water molecules of the first part 21 is from the outside of the preservation drawer to the inside of the preservation drawer, and the permeability of water molecules of the second part 22 is from the inside of the preservation drawer to the outside of the preservation drawer; and an adjusting member 23, the adjusting member 23 being used to adjust a used portion of the moisture permeable film 2.
Further, the adjusting member 23 includes: adjusting a first state of the moisture permeable film 2 using the first section 21; adjusting the second state of the moisture permeable film 2 using the second section 22; adjusting a third state that the moisture permeable film 2 does not perform moisture permeability; wherein the first state corresponds to a first stage of the moisture permeable film 2, the second state corresponds to a second stage of the moisture permeable film 2, and the third state corresponds to a third stage of the moisture permeable film 2.
Further, the crisper drawer comprises at least: a first fresh-keeping drawer 3 and a second fresh-keeping drawer 4; the modified atmosphere subassembly includes at least: the nitrogen-oxygen separation membrane module is used for separating oxygen from the first fresh-keeping drawer 3; and the vacuum preservation assembly is used for vacuumizing the second preservation drawer 4.
Further, the nitrogen-oxygen separation membrane module comprises: a nitrogen-oxygen separation membrane module 5 for separating nitrogen and oxygen; the gas conditioning assembly comprises: the vacuum pump 6 is connected with the nitrogen-oxygen separation membrane module 5 through a first air exhaust pipe 7, and the vacuum pump 6 exhausts oxygen in the first fresh-keeping drawer 3 through the nitrogen-oxygen separation membrane module 5; wherein, the nitrogen-oxygen separation membrane module 5 is at least partially arranged in the first fresh-keeping drawer 3, and the vacuum pump 6 is arranged outside the first fresh-keeping drawer 3.
Further, the vacuum freshness keeping assembly comprises: and the second exhaust pipe 8, the vacuum pump 6 and the vacuum fresh-keeping drawer are connected through the second exhaust pipe 8.
Further, the nitrogen-oxygen separation membrane module also comprises: the first switch valve 9 is positioned on the first exhaust pipe 7; the vacuum freshness retaining assembly further comprises: and a second switch valve 10 is positioned on the second air exhaust pipe 8.
Further, the nitrogen-oxygen separation membrane module includes a wind power part 11, and the wind power part 11 is disposed at the nitrogen-oxygen separation membrane module 5 for circulating air at the nitrogen-oxygen separation membrane module 5 to prevent nitrogen from being accumulated.
Further, the wind power unit 11 is a fan mounted on the nox separation membrane module 5, and two fans are provided, and the two fans are disposed in parallel on the nox separation membrane module 5.
Further, still include: and the humidity sensor is positioned in the preservation drawer and used for detecting the humidity in the preservation drawer.
According to another aspect of the embodiments of the present invention, there is provided a method for controlling a freshness refrigerator, which is applied to the freshness refrigerator, and includes:
detecting whether a fresh-keeping mode is started or not;
if yes, controlling the air conditioning assembly to be started;
after the air conditioning assembly is opened, the humidity conditioning assembly is controlled to regulate the humidity in the fresh-keeping drawer.
Further, detecting whether the preservation mode is started comprises: detecting whether an air-conditioned preservation mode is started or a vacuum preservation mode is started; controlling the opening of the controlled atmosphere component comprises: when the controlled atmosphere preservation mode is started, controlling the vacuum pump to be started, and controlling a first switch valve to be opened; and when the vacuum refreshing mode is started, controlling the vacuum pump to be started, and controlling the second switch valve to be started.
Further, a humidity conditioning assembly is controlled comprising: when the controlled atmosphere preservation mode is started, controlling the moisture permeable film of the first preservation drawer to be adjusted to a first gear; detecting the opening time of the first switch valve; when the opening time of the first switch valve is greater than or equal to a first preset time, controlling the first switch valve to be closed; when the vacuum preservation mode is started, controlling the moisture permeable film of the second preservation drawer to be adjusted to a first gear; detecting the opening time of the second switch valve; and when the opening time of the second switch valve is more than or equal to a second preset time, controlling the second switch valve to be closed.
Further, still include: detecting the switching states of the first switching valve and the second switching valve; when the first switch valve is closed and the second switch valve is closed, controlling the vacuum pump 6 to be closed; and detecting the humidity in the preservation drawer, and adjusting the moisture permeable film of the preservation drawer according to the humidity in the preservation drawer.
Further, according to the moisture permeable membrane of fresh-keeping drawer interior humidity control fresh-keeping drawer, include: when the humidity in the fresh-keeping drawer is lower than a first preset humidity, controlling a moisture permeable film of the fresh-keeping drawer to maintain a first gear; when the humidity in the fresh-keeping drawer is more than or equal to a first preset humidity and less than or equal to a second preset humidity, controlling the moisture permeable film of the fresh-keeping drawer to be adjusted to a third gear; when the humidity in the fresh-keeping drawer is higher than a second preset humidity, controlling the moisture permeable film of the fresh-keeping drawer to be adjusted to a second gear; wherein the second preset humidity is greater than the first preset humidity.
According to yet another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the crisper control method as described above when executed by a computer processor.
The preservation drawer is provided with an air conditioning assembly for separating oxygen from the preservation space or vacuumizing the preservation space, and the preservation drawer is also provided with a humidity adjusting assembly for adjusting the humidity in the preservation drawer, and the humidity adjusting assembly is provided with different gears corresponding to different moisture permeable films and having different water molecule permeabilities. Through humidity control assembly, adjust humidity in the drawer, compensate the humidity loss that the gas conditioning in-process caused, effectively solved among the prior art problem that the in-process that preservation box oxygen reduces caused humidity to reduce simultaneously, make the humidity in the preservation drawer maintain at suitable level, improve the fresh degree of food.
Drawings
FIG. 1 is a schematic view of an alternative configuration of the fresh-keeping functional section of the fresh-keeping refrigerator according to an embodiment of the present invention;
FIG. 2 is an alternative schematic view of different states of a moisture permeable film according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an alternative configuration of a nitrogen-oxygen separation membrane module according to an embodiment of the invention;
FIG. 4 is an alternative flow chart of a crisper control method according to an embodiment of the present invention;
fig. 5 is another alternative flow chart of a crisper control method according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, a freshness protection refrigerator is provided, in which a special freshness protection function area is set, and specifically, fig. 1 shows an optional structural schematic diagram of the freshness protection function area of the freshness protection refrigerator, as shown in fig. 1, including:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air;
the air conditioning component is used for separating oxygen from the preservation space or vacuumizing the preservation space; the number of the preservation drawers is one or two, as shown in figure 1, the number of the preservation drawers is two, and the two preservation drawers are respectively a modified atmosphere preservation drawer and a vacuum preservation drawer; the user can select the air-conditioning preservation function or the vacuum preservation function according to the requirement, and the two functions can be started simultaneously.
The humidity adjusting component 1 is arranged on the preservation drawer and is used for adjusting the humidity in the preservation drawer; wherein, humidity control subassembly 1 is provided with different gears, and different gears correspond to different moisture permeable membrane 2, have different water molecule permeability. The humidity adjusting component 1 is arranged on the air-conditioning preservation drawer and the vacuum preservation drawer.
In the above embodiment, be provided with the gas regulation subassembly on keeping fresh the drawer for isolate oxygen from the fresh-keeping space, or carry out the evacuation to the fresh-keeping space, and to the fresh-keeping drawer, still be provided with the humidity control subassembly for adjust the humidity in the fresh-keeping drawer, and the humidity control subassembly is provided with different gears, and different gears are corresponding to different moisture permeable membrane, have different hydrone permeability. Through humidity control assembly, adjust humidity in the drawer, compensate the humidity loss that the gas conditioning in-process caused, effectively solved among the prior art problem that the in-process that preservation box oxygen reduces caused humidity to reduce simultaneously, make the humidity in the preservation drawer maintain at suitable level, improve the fresh degree of food.
The humidity conditioning assembly 1 comprises: a moisture permeable film 2 including a first portion 21 and a second portion 22; as shown in the figure, the first section 21 and the second section 22 are juxtaposed to constitute a moisture permeable film together. The permeability of water molecules of the first part 21 is from the outside of the preservation drawer to the inside of the preservation drawer, and the permeability of water molecules of the second part 22 is from the inside of the preservation drawer to the outside of the preservation drawer; and an adjusting member 23, the adjusting member 23 being used to adjust a used portion of the moisture permeable film 2. Fig. 2 shows different stages of the moisture permeable film 2, and as shown in fig. 2, the adjuster 23 includes: adjusting a first state of the moisture permeable film 2 using the first section 21; adjusting the second state of the moisture permeable film 2 using the second section 22; adjusting a third state that the moisture permeable film 2 does not perform moisture permeability; wherein the first state corresponds to a first stage of the moisture permeable film 2, the second state corresponds to a second stage of the moisture permeable film 2, and the third state corresponds to a third stage of the moisture permeable film 2.
As shown in fig. 1, the crisper drawer at least comprises: a first fresh-keeping drawer 3 and a second fresh-keeping drawer 4; the modified atmosphere subassembly includes at least: the nitrogen-oxygen separation membrane module is used for separating oxygen from the first fresh-keeping drawer 3; namely, the first fresh-keeping drawer 3 is a controlled atmosphere fresh-keeping drawer; the vacuum preservation assembly is used for vacuumizing the second preservation drawer 4; i.e. the second crisper drawer 4 is a vacuum crisper drawer.
Wherein, the nitrogen-oxygen separation membrane component comprises: a nitrogen-oxygen separation membrane module 5 for separating nitrogen and oxygen; the gas conditioning assembly comprises: the vacuum pump 6 is connected with the nitrogen-oxygen separation membrane module 5 through a first air exhaust pipe 7, and the vacuum pump 6 exhausts oxygen in the first fresh-keeping drawer 3 through the nitrogen-oxygen separation membrane module 5; wherein, the nitrogen-oxygen separation membrane module 5 is at least partially arranged in the first fresh-keeping drawer 3, and the vacuum pump 6 is arranged outside the first fresh-keeping drawer 3.
In the technical scheme of this kind of implementation, nitrogen oxygen separation membrane module 20 includes nitrogen oxygen separation membrane module 5 and vacuum pump 6, and nitrogen oxygen separation membrane module 5 is used for separating nitrogen gas and oxygen, and vacuum pump 6 links to each other through first exhaust tube 7 with nitrogen oxygen separation membrane module 5, and vacuum pump 6 takes out the oxygen in the fresh-keeping space through nitrogen oxygen separation membrane module 5. As shown in fig. 1, when using, the nitrogen-oxygen separation membrane module 5 is arranged in the fresh-keeping space, the vacuum pump 6 is arranged outside the fresh-keeping space, the vacuum pump 6 acts on the nitrogen-oxygen separation membrane module 5 through the exhaust tube 23, the nitrogen-oxygen separation membrane module 5 only allows oxygen to pass through, and nitrogen remains in the fresh-keeping space, and the oxygen separated by the nitrogen-oxygen separation membrane module 5 is discharged to the external space through the exhaust tube 23 and the vacuum pump 6.
Optionally, in the technical solution of this embodiment, the nitrogen-oxygen separation membrane module 5 is at least partially disposed inside the fresh-keeping drawer 10, and the vacuum pump 6 is disposed outside the fresh-keeping drawer. Wherein, should guarantee at least that the separation nitrogen gas circulation's of nitrogen oxygen separation membrane module 5 one side is located fresh-keeping drawer when using, let whole nitrogen oxygen separation membrane module 5 also be feasible within fresh-keeping drawer certainly. The vacuum pump 6 is arranged outside the fresh-keeping drawer and is connected with the nitrogen-oxygen separation membrane module 5 through the exhaust tube 23, the position of the vacuum pump 6 can be the position adjacent to the fresh-keeping drawer, and also can be the position far away from the fresh-keeping drawer, such as the positions of an inner container of a refrigerator or a compressor bin, and the like, as long as the vacuum pump is connected with the nitrogen-oxygen separation membrane module 5 through the exhaust tube 23.
More preferably, as shown in fig. 3, the nitrogen and oxygen separation membrane module includes a wind power part 11, and the wind power part 11 is provided at the nitrogen and oxygen separation membrane module 5. When the nitrogen-oxygen separation membrane module is used, the wind power component 11 can enable air at the nitrogen-oxygen separation membrane module 5 to circulate to prevent nitrogen from gathering, so that the separation efficiency of the nitrogen-oxygen separation membrane module 20 on oxygen in the fresh-keeping space is improved.
As an alternative embodiment, the wind power unit 11 is a fan mounted on the nitrogen-oxygen separation membrane module 5. Preferably, the number of the fans is two, and the two fans are arranged on the nitrogen-oxygen separation membrane module 5 in parallel, so that the air circulation efficiency in the fresh-keeping space is improved. As a further alternative, the wind power element 11 may also be a ventilation board that is movable to circulate the air flow.
The vacuum freshness retaining assembly comprises: and the second exhaust pipe 8, the vacuum pump 6 and the vacuum fresh-keeping drawer are connected through the second exhaust pipe 8.
The nitrogen-oxygen separation membrane module also comprises: the first switch valve 9 is positioned on the first exhaust pipe 7; the vacuum freshness retaining assembly further comprises: and a second switch valve 10 is positioned on the second air exhaust pipe 8. The pipeline between the nitrogen-oxygen separation membrane module 5 and the vacuum pump 6 is controlled by a first on-off valve 9. The pipeline between the vacuum refreshing drawer and the vacuum pump 6 is controlled by a second switch valve 10. Therefore, the invention can realize two fresh-keeping modes of air conditioning and vacuum at the same time by one vacuum pump 6, and only needs to control the corresponding switch valve to open when air conditioning or vacuum pumping is realized.
In summary, the invention is provided with the humidifying modules on the air-conditioned fresh-keeping drawer and the vacuum fresh-keeping drawer respectively. The humidifying module consists of a moisture permeable membrane (water molecules can pass through the membrane through the permeation effect, and gas cannot pass through the membrane), a vacuum pump and a humidity sensor. Under the pushing of the pressure of the vacuum pump, moisture in the outside air can enter the air-conditioning preservation drawer and the vacuum preservation drawer through the moisture permeable film, so that the humidifying effect is achieved, and the humidity lost in the oxygen reduction process is compensated. Meanwhile, after the oxygen reduction or vacuum pumping procedure is finished, the gear of the moisture permeable film is adjusted according to the humidity information fed back by the humidity sensor, and the humidity in the drawer is ensured to be in a proper range.
Example 2
In a preferred embodiment 2 of the present invention, a method for controlling a freshness refrigerator is provided, which is applied to the freshness refrigerator in the above embodiment 1. In particular, fig. 4 shows an alternative flow chart of the method, which, as shown in fig. 4, comprises the following steps S402-S406:
s402: detecting whether a fresh-keeping mode is started or not;
s404: if yes, controlling the air conditioning assembly to be started;
s406: after the air conditioning assembly is opened, the humidity conditioning assembly is controlled to regulate the humidity in the fresh-keeping drawer.
In the above embodiment, be provided with the gas regulation subassembly on keeping fresh the drawer for isolate oxygen from the fresh-keeping space, or carry out the evacuation to the fresh-keeping space, and to the fresh-keeping drawer, still be provided with the humidity control subassembly for adjust the humidity in the fresh-keeping drawer, and the humidity control subassembly is provided with different gears, and different gears are corresponding to different moisture permeable membrane, have different hydrone permeability. Through humidity control assembly, adjust humidity in the drawer, compensate the humidity loss that the gas conditioning in-process caused, effectively solved among the prior art problem that the in-process that preservation box oxygen reduces caused humidity to reduce simultaneously, make the humidity in the preservation drawer maintain at suitable level, improve the fresh degree of food.
Detecting whether to start a fresh-keeping mode, comprising: detecting whether an air-conditioned preservation mode is started or a vacuum preservation mode is started; controlling the opening of the controlled atmosphere component comprises: when the controlled atmosphere preservation mode is started, controlling the vacuum pump to be started, and controlling a first switch valve to be opened; and when the vacuum refreshing mode is started, controlling the vacuum pump to be started, and controlling the second switch valve to be started. When the oxygen reduction function is started, the first switch valve is opened, when the vacuum preservation function is started, the second switch valve is opened, and when the two functions are started simultaneously, the first switch valve and the second switch valve are opened simultaneously. After the corresponding valve is opened, the vacuum pump is started, and air is extracted through the air extraction pipeline. When the oxygen reduction function is started, under the pushing of the pressure of the vacuum pump, oxygen can pass through the nitrogen-oxygen separation membrane module, nitrogen cannot pass through the nitrogen-oxygen separation membrane module, and the effect of quickly reducing the oxygen concentration in the drawer is achieved. When the vacuum preservation function is started, the gas in the vacuum preservation drawer is pumped out by the vacuum pump through the air pumping pipeline. When two kinds of functions are opened simultaneously, the vacuum pump is used for pumping air from the two drawers simultaneously.
A control humidity adjustment assembly comprising: when the controlled atmosphere preservation mode is started, controlling the moisture permeable film of the first preservation drawer to be adjusted to a first gear; detecting the opening time of the first switch valve; when the opening time of the first switch valve is greater than or equal to a first preset time, controlling the first switch valve to be closed; after the vacuum pump starts to work, the moisture permeable film on the air-conditioned fresh-keeping drawer or the vacuum fresh-keeping drawer is adjusted to the first gear, and under the pushing of the pressure of the vacuum pump, moisture in the outside air can enter the air-conditioned fresh-keeping drawer or the vacuum fresh-keeping drawer through the moisture permeable film, so that the humidifying effect is achieved, and the humidity lost in the oxygen reduction process is compensated.
When the vacuum preservation mode is started, controlling the moisture permeable film of the second preservation drawer to be adjusted to a first gear; detecting the opening time of the second switch valve; and when the opening time of the second switch valve is more than or equal to a second preset time, controlling the second switch valve to be closed. The air extraction time of the oxygen reduction function of the air-conditioned fresh-keeping drawer is set to be 30min, and when the opening time T1 of the first switch valve is more than or equal to 30min, the first switch valve is closed. The air pumping time of the vacuum function of the vacuum refreshing drawer is set to be 1min, and when the opening time T2 of the first switch valve is more than or equal to 1min, the second switch valve is closed.
Control humidity control subassembly still includes: detecting the switching states of the first switching valve and the second switching valve; when the first switch valve is closed and the second switch valve is closed, controlling the vacuum pump to be closed; and when the first switch valve and the second switch valve are closed, the vacuum pump stops working.
After the vacuum pump stops working, the humidity in the preservation drawer is detected, and the moisture permeable film of the preservation drawer is adjusted according to the humidity in the preservation drawer. Detecting the humidity within the crisper drawer includes: detecting the humidity in the first fresh-keeping drawer and the humidity in the second fresh-keeping drawer; according to the moisture permeable membrane of humidity control fresh-keeping drawer in the fresh-keeping drawer, include: and adjusting the moisture permeable film of the first fresh-keeping drawer according to the humidity in the first fresh-keeping drawer, and adjusting the moisture permeable film of the second fresh-keeping drawer according to the humidity in the second fresh-keeping drawer.
According to the moisture permeable membrane of humidity control fresh-keeping drawer in the fresh-keeping drawer, include: when the humidity in the fresh-keeping drawer is lower than a first preset humidity, controlling a moisture permeable film of the fresh-keeping drawer to maintain a first gear; when the humidity in the fresh-keeping drawer is more than or equal to a first preset humidity and less than or equal to a second preset humidity, controlling the moisture permeable film of the fresh-keeping drawer to be adjusted to a third gear; when the humidity in the fresh-keeping drawer is higher than a second preset humidity, controlling the moisture permeable film of the fresh-keeping drawer to be adjusted to a second gear; wherein the second preset humidity is greater than the first preset humidity.
Another freshness refrigerator control method is also provided in the preferred embodiment 2 of the present invention, specifically, fig. 5 shows an optional flowchart of the method, as shown in fig. 5, the method includes the following steps:
s501: the user starts the air-conditioning preservation function/the vacuum preservation function according to the requirement;
s502: opening the air-conditioning fresh-keeping function;
s503: the first switch valve is opened; when the controlled atmosphere preservation mode is started, controlling the vacuum pump to be started, and controlling a first switch valve to be opened;
s504: starting a vacuum preservation function;
s505: the second switch valve is opened; when the vacuum preservation mode is started, controlling the vacuum pump to be started, and controlling a second switch valve to be started;
s506: starting the vacuum pump to work;
s507: the first moisture permeable film is adjusted to a first gear; after the vacuum pump starts to work, the moisture permeable film on the air-conditioned fresh-keeping drawer or the vacuum fresh-keeping drawer is adjusted to a first gear, and under the pushing of the pressure of the vacuum pump, moisture in the outside air can enter the air-conditioned fresh-keeping drawer or the vacuum fresh-keeping drawer through the moisture permeable film, so that the humidifying effect is achieved, and the humidity lost in the oxygen reduction process is compensated;
s508: whether T1 is more than or equal to 30min or not is met;
s509: the first switch valve is closed; the air extraction time of the oxygen reduction function of the air-conditioned fresh-keeping drawer is set to be 30min, and when the opening time T1 of the first switch valve is more than or equal to 30min, the first switch valve is closed;
s510: the second moisture permeable film is adjusted to a first gear;
s511: whether T2 is more than or equal to 1min or not is met;
s512: the second switch valve is closed; the air pumping time of the vacuum function of the vacuum refreshing drawer is set to be 1min, and when the opening time T2 of the first switch valve is more than or equal to 1min, the second switch valve is closed;
s513: detecting whether the first switch valve and the second switch valve are closed or not; if yes, go to step S514, otherwise, go to step S506;
s514: stopping the vacuum pump; when the first switch valve and the second switch valve are both closed, the vacuum pump stops working;
s515: monitoring the humidity of the first fresh-keeping drawer in real time; after the vacuum pump stops working, the gear of the moisture permeable film is adjusted according to the humidity information fed back by the humidity sensor, and the humidity in the drawer is ensured to be in a proper range;
s516: the humidity of the first fresh-keeping drawer is more than 95% and less than 97%;
s517: the first moisture permeable film (moisture permeable film of the first fresh keeping drawer) is adjusted to a third gear; when the humidity in the modified atmosphere preservation drawer/vacuum preservation drawer is 95% -97%, the moisture permeable film is adjusted to a third gear, the moisture permeable film is closed, and the humidity is kept;
s518: the humidity of the first fresh-keeping drawer is less than 95 percent; when the humidity in the modified atmosphere preservation drawer/vacuum preservation drawer is lower than 95%, the moisture permeable film is at the first gear, and water molecules permeate into the drawer from the outside to humidify the interior of the drawer;
s519: the humidity of the first fresh-keeping drawer is more than 97 percent;
s520: the first moisture permeable film is adjusted to a second gear; when the humidity in the modified atmosphere preservation drawer/vacuum preservation drawer is higher than 97%, the moisture permeable film is adjusted to a second gear, and water molecules permeate from the interior of the drawer to the exterior;
s521: monitoring the humidity of the second fresh-keeping drawer in real time;
s522: the humidity of the second fresh-keeping drawer is more than 97 percent;
s523: the second moisture permeable film (the moisture permeable film of the second fresh-keeping drawer) is adjusted to a second gear;
s524: the humidity of the second fresh-keeping drawer is less than 95 percent;
s525: the humidity of the second fresh-keeping drawer is more than 95% and less than 97%;
s526: the first moisture permeable film is adjusted to a third gear;
the humidity condition in the drawer is monitored in real time through the humidity sensor, the gear of the moisture permeable film is continuously adjusted, and the humidity is ensured to be in a proper range (95% -97%).
Example 3
Based on the method for controlling the freshness refrigerator provided in the above embodiment 2, in a preferred embodiment 3 of the present invention, there is also provided a storage medium containing computer executable instructions, which are executed by a computer processor to perform the method for controlling the freshness refrigerator as described above.
In the above embodiment, be provided with the gas regulation subassembly on keeping fresh the drawer for isolate oxygen from the fresh-keeping space, or carry out the evacuation to the fresh-keeping space, and to the fresh-keeping drawer, still be provided with the humidity control subassembly for adjust the humidity in the fresh-keeping drawer, and the humidity control subassembly is provided with different gears, and different gears are corresponding to different moisture permeable membrane, have different hydrone permeability. Through humidity control assembly, adjust humidity in the drawer, compensate the humidity loss that the gas conditioning in-process caused, effectively solved among the prior art problem that the in-process that preservation box oxygen reduces caused humidity to reduce simultaneously, make the humidity in the preservation drawer maintain at suitable level, improve the fresh degree of food.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (16)

1. A crisper refrigerator, comprising:
the fresh-keeping drawer is internally provided with a fresh-keeping space which is relatively isolated from air;
the air conditioning assembly is used for separating oxygen from the preservation space or vacuumizing the preservation space;
the humidity adjusting component (1) is arranged on the preservation drawer and is used for adjusting the humidity in the preservation drawer; the humidity adjusting assembly (1) is provided with different gears, and the different gears correspond to different water molecule permeabilities.
2. The crisper refrigerator according to claim 1, characterized in that said humidity conditioning assembly (1) comprises:
a moisture permeable film (2) including a first portion (21) and a second portion (22); wherein the water molecule permeability of the first part (21) is from the exterior of the crisper drawer to the interior of the crisper drawer, and the water molecule permeability of the second part (22) is from the interior of the crisper drawer to the exterior of the crisper drawer;
an adjusting member (23), wherein the adjusting member (23) is used for adjusting the using part of the moisture permeable film (2).
3. The crisper refrigerator according to claim 2, characterized in that said adjustment means (23) comprise:
adjusting a first state of the moisture permeable film (2) using the first portion (21);
adjusting a second state of the moisture permeable film (2) using the second section (22);
adjusting a third state that the moisture permeable film (2) is not subjected to moisture permeation;
wherein the first state corresponds to a first stage of the moisture permeable membrane (2), the second state corresponds to a second stage of the moisture permeable membrane (2), and the third state corresponds to a third stage of the moisture permeable membrane (2).
4. The crisper refrigerator of claim 1, wherein the crisper drawer comprises at least: a first fresh-keeping drawer (3) and a second fresh-keeping drawer (4); the modified atmosphere component at least comprises:
the nitrogen-oxygen separation membrane module is used for separating oxygen from the first fresh-keeping drawer (3);
and the vacuum preservation assembly is used for vacuumizing the second preservation drawer (4).
5. The crisper refrigerator of claim 4,
the nitrogen-oxygen separation membrane module comprises: a nitrogen-oxygen separation membrane module (5) for separating nitrogen and oxygen;
the modified atmosphere subassembly includes: the vacuum pump (6) is connected with the nitrogen-oxygen separation membrane module (5) through a first air exhaust pipe (7), and the vacuum pump (6) is used for exhausting oxygen in the first fresh-keeping drawer (3) through the nitrogen-oxygen separation membrane module (5); wherein, the nitrogen-oxygen separation membrane module (5) is at least partially arranged in the first fresh keeping drawer (3), and the vacuum pump (6) is arranged outside the first fresh keeping drawer (3).
6. The crisper refrigerator of claim 5, wherein the vacuum refreshing assembly comprises:
and the vacuum pump (6) is connected with the vacuum preservation drawer through the second air exhaust pipe (8).
7. The crisper refrigerator of claim 6,
the nitrogen-oxygen separation membrane module further comprises: the first switch valve (9) is positioned on the first air suction pipe (7);
the vacuum freshness retaining assembly further comprises: and the second switch valve (10) is positioned on the second air suction pipe (8).
8. The crisper according to claim 5, characterized in that the membrane module comprises a wind power unit (11), the wind power unit (11) being arranged at the membrane module (5) for circulating air at the membrane module (5) to prevent nitrogen accumulation.
9. The crisper refrigerator according to claim 8, characterized in that said wind power means (11) are fans mounted on the module (5) of membranes for nitrogen and oxygen separation, said fans being two, two fans being arranged side by side on the module (5) of membranes for nitrogen and oxygen separation.
10. The crisper refrigerator of claim 1, further comprising:
and the humidity sensor is positioned in the preservation drawer and used for detecting the humidity in the preservation drawer.
11. A freshness refrigerator control method applied to the freshness refrigerator of any one of claims 1 to 10, comprising:
detecting whether a fresh-keeping mode is started or not;
if yes, controlling the air conditioning assembly to be started;
and after the air conditioning assembly is opened, controlling the humidity conditioning assembly to regulate the humidity in the preservation drawer.
12. The method of claim 11, wherein the detecting whether the keep-fresh mode is enabled comprises: detecting whether an air-conditioned preservation mode is started or a vacuum preservation mode is started; the controlled atmosphere subassembly is opened, includes:
when the controlled atmosphere preservation mode is started, controlling a vacuum pump to be started, and controlling a first switch valve to be started;
and when the vacuum refreshing mode is started, controlling the vacuum pump to be started, and controlling a second switch valve to be started.
13. The method of claim 12, wherein controlling the humidity adjustment assembly comprises:
when the controlled atmosphere preservation mode is started, controlling the moisture permeable film of the first preservation drawer to be adjusted to a first gear; detecting the opening time of the first switch valve; when the opening time of the first switch valve is greater than or equal to a first preset time, controlling the first switch valve to be closed;
when the vacuum fresh-keeping mode is started, controlling a moisture permeable film of a second fresh-keeping drawer to be adjusted to the first gear; detecting the opening time of the second switch valve; and when the opening time of the second switch valve is more than or equal to a second preset time, controlling the second switch valve to be closed.
14. The method of claim 13, further comprising:
detecting the switching states of the first switching valve and the second switching valve;
when the first switch valve is closed and the second switch valve is closed, controlling the vacuum pump 6 to be closed;
and detecting the humidity in the preservation drawer, and adjusting the moisture permeable film of the preservation drawer according to the humidity in the preservation drawer.
15. The method of claim 14, wherein adjusting the moisture permeable membrane of the crisper drawer based on the humidity within the crisper drawer comprises:
when the humidity in the preservation drawer is smaller than a first preset humidity, controlling a moisture permeable film of the preservation drawer to maintain the first gear;
when the humidity in the preservation drawer is more than or equal to the first preset humidity and less than or equal to the second preset humidity, controlling the moisture permeable film of the preservation drawer to be adjusted to a third gear;
when the humidity in the preservation drawer is higher than the second preset humidity, controlling the moisture permeable film of the preservation drawer to be adjusted to a second gear; wherein the second preset humidity is greater than the first preset humidity.
16. A storage medium containing computer executable instructions, wherein the computer executable instructions, when executed by a computer processor, are for performing the crisper control method of any of claims 11 to 15.
CN202111212337.5A 2021-10-18 2021-10-18 Fresh-keeping refrigerator and control method thereof Pending CN113865193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111212337.5A CN113865193A (en) 2021-10-18 2021-10-18 Fresh-keeping refrigerator and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111212337.5A CN113865193A (en) 2021-10-18 2021-10-18 Fresh-keeping refrigerator and control method thereof

Publications (1)

Publication Number Publication Date
CN113865193A true CN113865193A (en) 2021-12-31

Family

ID=79000146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111212337.5A Pending CN113865193A (en) 2021-10-18 2021-10-18 Fresh-keeping refrigerator and control method thereof

Country Status (1)

Country Link
CN (1) CN113865193A (en)

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