CN113137808A - Refrigerator control method and refrigerator - Google Patents

Refrigerator control method and refrigerator Download PDF

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Publication number
CN113137808A
CN113137808A CN202110467057.2A CN202110467057A CN113137808A CN 113137808 A CN113137808 A CN 113137808A CN 202110467057 A CN202110467057 A CN 202110467057A CN 113137808 A CN113137808 A CN 113137808A
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CN
China
Prior art keywords
drawer
preservation
fresh
keeping
air
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Pending
Application number
CN202110467057.2A
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Chinese (zh)
Inventor
陈佳弘
郭琨
李信良
刘畅
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202110467057.2A priority Critical patent/CN113137808A/en
Publication of CN113137808A publication Critical patent/CN113137808A/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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control 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

Abstract

The invention discloses a refrigerator control method and a refrigerator, wherein the method comprises the following steps: detecting the use condition of the fresh-keeping drawer; determining a preservation control strategy of the preservation drawer according to the use condition; and controlling the operation of the adjustable gas regulating membrane component according to the preservation control strategy. The invention solves the problems that the controlled atmosphere preservation control process in the prior art is not intelligent enough and affects the food freshness, and improves the intelligence of controlled atmosphere preservation system control and the freshness of the articles in the preservation drawer.

Description

Refrigerator control method and refrigerator
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator control method and a refrigerator.
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 controlled atmosphere technology is common, the controlled atmosphere technology utilizes controlled atmosphere equipment to adjust the oxygen and carbon dioxide concentration in the fruit and vegetable drawer, and the oxygen concentration in the storage environment is reduced to improve the carbon dioxide concentration, so that the effects of fruit and vegetable aerobic respiration and self nutrient substance consumption are inhibited. However, in the prior art, the adjustment and control scheme for the gas concentration is simple, and the oxygen concentration is easily higher or the carbon dioxide concentration is easily higher. When the oxygen concentration is higher, fruits and vegetables can breathe aerobically, but when the carbon dioxide concentration is too high, the fruits and vegetables can breathe anaerobically, damage is caused, and the freshness of the fruits and vegetables is reduced.
Aiming at the problems that the controlled atmosphere preservation control process in the related technology is not intelligent enough and the food freshness degree is influenced, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a refrigerator control method and a refrigerator, and at least solves the problem that the freshness of food is influenced due to the fact that the controlled atmosphere preservation control process in the prior art is not intelligent enough.
In order to solve the technical problem, according to an aspect of an embodiment of the present invention, a method for controlling a refrigerator is provided, where the refrigerator includes a fresh-keeping drawer and a controlled atmosphere fresh-keeping system; the fresh-keeping drawer comprises an adjustable air-conditioning film component, an air-conditioning film and a regulating part, wherein the adjustable air-conditioning film component is arranged on the fresh-keeping drawer and comprises the air-conditioning film and the regulating part, the air-conditioning film is used for regulating the oxygen concentration and the carbon dioxide concentration in the fresh-keeping drawer, and the regulating part is used for regulating the effective use area of the air-conditioning film; the method comprises the following steps: detecting the use condition of the fresh-keeping drawer; determining a preservation control strategy of the preservation drawer according to the use condition; and controlling the operation of the adjustable gas regulating membrane component according to the preservation control strategy.
Furthermore, a temperature sensor is arranged in the preservation drawer and used for detecting the temperature in the preservation drawer; detecting the use condition of the freshness drawer, comprising: detecting the temperature change of the fresh-keeping drawer within a preset time; and determining the service condition of the freshness preservation drawer according to the temperature change.
Further, determining the use condition of the freshness drawer according to the temperature change comprises the following steps: when the temperature change is larger than or equal to a first preset temperature threshold value, determining that the using condition of the preservation drawer is that the preservation drawer is opened and a compartment where the preservation drawer is located is opened; when the temperature change is smaller than a first preset temperature threshold and larger than a second temperature threshold, determining that the using condition of the preservation drawer is that the preservation drawer is not opened and the compartment where the preservation drawer is located is opened; when the temperature change is less than or equal to a second preset temperature threshold and greater than or equal to a third temperature threshold, determining that the using condition of the freshness drawer is that the freshness drawer is not opened and the compartment where the freshness drawer is located is not opened; wherein, the first preset temperature threshold value is larger than the second preset temperature threshold value and larger than the third temperature threshold value.
Further, determining a freshness control strategy of the freshness drawer according to the use condition comprises the following steps: when the use condition is that the preservation drawer is opened, determining the preservation control strategy of the preservation drawer as to carry out quick precooling on the preservation drawer; when the using condition is that the preservation drawer is not opened and the compartment where the preservation drawer is located is opened, determining a preservation control strategy of the preservation drawer as performing conventional air conditioning on the preservation drawer; when the using condition is that the preservation drawer is not opened and the compartment where the preservation drawer is located is not opened, the preservation control strategy of the preservation drawer is determined to be slow air conditioning of the preservation drawer.
Further, the adjusting member includes: adjusting the effective use area of the air adjusting film to be 0%, and closing the full-closed state of the vent hole; adjusting the effective use area of the air-conditioning film to be 0-100%, and closing the air-conditioning adjustment state of the vent hole; adjusting the effective use area of the air-conditioning film to be 100%, and closing the air-conditioning fully-opened state of the vent holes; and opening the ventilation state of the ventilation hole.
Further, controlling the operation of the adjustable modified atmosphere module according to a preservation control strategy comprises the following steps: when the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the adjusting piece is controlled to be in the ventilation state; when the preservation control strategy of the preservation drawer is to carry out conventional air conditioning on the preservation drawer, the regulating piece is controlled to be in an air conditioning fully open state; when the preservation control strategy of the preservation drawer is to perform slow air conditioning on the preservation drawer, the regulating piece is controlled to be in an air conditioning regulation state.
Further, the modified atmosphere preservation system further comprises: the nitrogen-oxygen separation membrane module comprises a nitrogen-oxygen separation membrane module and a vacuum pump and is used for separating oxygen from the fresh-keeping drawer; when the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the method also comprises the following steps of controlling the operation of the adjustable gas regulating membrane module according to the preservation control strategy: detecting whether the temperature of the fresh-keeping drawer is less than or equal to a fourth preset temperature threshold value or not; if so, performing quick air conditioning on the fresh-keeping drawer; wherein the modified atmosphere comprises: controlling the operation of the vacuum pump and the state of the regulating member; the vacuum pump operates according to a preset flow rate, the adjusting piece is in the air-conditioning adjusting state, and the effective use area of the air-conditioning film is 50%.
Further, after controlling the operation of the vacuum pump and the state of the regulating member, the method further includes: detecting the temperature change of the fresh-keeping drawer within a preset time, and adjusting the state of the adjusting piece according to the temperature change; detecting the temperature of the fresh-keeping drawer and determining the difference value between the temperature of the fresh-keeping drawer and the preset temperature; if the difference value is in the preset interval, performing slow air conditioning on the preservation drawer; otherwise, the temperature change of the fresh-keeping drawer in the preset time is detected again.
Further, adjusting the state of the regulating member according to the temperature change includes: when the temperature change is less than or equal to a fifth preset temperature threshold value, controlling the regulating piece to be in a fully closed state; and when the temperature change is larger than a fifth preset temperature threshold value, controlling the adjusting piece to be in a full-open state.
Further, before detecting the use condition of the freshness drawer, the method further comprises the following steps: controlling the controlled atmosphere preservation system to start to operate; detecting whether the fresh-keeping drawer is completely closed; if yes, triggering and detecting the service condition of the freshness preservation drawer; otherwise, prompting the user to close the fresh-keeping drawer.
According to another aspect of an embodiment of the present invention, there is provided a refrigerator including: the fresh-keeping drawer 10 is provided with a fresh-keeping space which is relatively isolated from air and is formed in the fresh-keeping drawer 10; a nitrogen-oxygen separation membrane module 20 for separating oxygen from the fresh-keeping space; the adjustable gas regulating membrane assembly 30 is arranged on the fresh-keeping drawer 10, the adjustable gas regulating membrane assembly 30 comprises a gas regulating membrane 31 and an adjusting piece 32, the adjusting piece 32 is used for adjusting the effective use area of the gas regulating membrane 31, and the gas regulating membrane 31 is used for adjusting the oxygen concentration and the carbon dioxide concentration of a fresh-keeping space relative to an external space; and the temperature sensor is positioned inside the preservation drawer 10 and used for detecting the temperature in the preservation drawer 10.
Further, the adjustable gas regulating membrane module 30 further comprises a vent hole 33, the vent hole 33 is used for communicating the fresh-keeping space with the external space, and the adjusting member 32 is also used for adjusting the opening and closing of the vent hole 33.
Further, the adjusting member 32 includes: adjusting the effective use area of the air adjusting film 31 to be 0 percent, and closing the fully closed state of the vent hole 33; adjusting the air-conditioning adjusting state of the air-conditioning film 31 with the effective use area of 0-100% and closing the vent hole 33; the effective use area of the air adjusting film 31 is adjusted to be 100 percent, and the air adjusting full open state of the vent hole 33 is closed; a ventilation state in which the ventilation hole 33 is opened.
Further, the nitrogen-oxygen separation membrane module 20 includes: a nitrogen-oxygen separation membrane module 21 for separating nitrogen and oxygen; and the vacuum pump 22 is connected with the nitrogen-oxygen separation membrane module 21 through an exhaust pipe 23, and the vacuum pump 22 exhausts oxygen in the fresh-keeping space through the nitrogen-oxygen separation membrane module 21.
According to still another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the refrigerator control method as described above when executed by a computer processor.
The invention provides a refrigerator control scheme, which can judge the states of fruits, vegetables and other objects in a preservation drawer by detecting the use condition of the preservation drawer in the use process of a user, further determine a preservation control strategy of the preservation drawer according to the use condition and control the operation of an adjustable controlled atmosphere membrane component. The aim of quickly adjusting the suitable storage environment in the fresh-keeping drawer is achieved by formulating a fresh-keeping control strategy according to the use condition, so that the intelligence of the controlled atmosphere fresh-keeping system control is improved, and the freshness of the articles in the fresh-keeping drawer is improved.
Drawings
FIG. 1 is a schematic diagram of an alternative configuration of a crisper according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an alternative nitrogen-oxygen separation membrane module according to an embodiment of the present invention;
fig. 3 is an alternative flowchart of a refrigerator control method according to an embodiment of the present invention;
fig. 4 is another alternative flowchart of a refrigerator control method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an alternative configuration of a tunable modified atmosphere module according to an embodiment of the 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 preferred embodiment 1 of the present invention, there is provided a refrigerator control method, which can be directly applied to a refrigerator having a fresh-keeping function. Specifically, fig. 1 shows an embodiment of a crisper comprising a crisper drawer 10, a nitrogen-oxygen separation membrane module 20 and an adjustable gas-regulating membrane module 30 in which the gas-regulating freshness system of the present invention is located. Wherein, a fresh-keeping space which is relatively isolated from air is formed in the fresh-keeping drawer 10, the adjustable gas regulating membrane module 30 is arranged on the fresh-keeping drawer 10, and the nitrogen-oxygen separation membrane module 20 is used for separating oxygen from the fresh-keeping space.
Fig. 2 shows a schematic structural diagram of a nitrogen-oxygen separation membrane module of a fresh-keeping refrigerator, as shown in fig. 2, in the technical solution of this embodiment, the nitrogen-oxygen separation membrane module 20 includes a nitrogen-oxygen separation membrane module 21 and a vacuum pump 22, the nitrogen-oxygen separation membrane module 21 is used for separating nitrogen and oxygen, the vacuum pump 22 is connected to the nitrogen-oxygen separation membrane module 21 through an exhaust tube 23, and the vacuum pump 22 is used for pumping away oxygen in a fresh-keeping space through the nitrogen-oxygen separation membrane module 21. As shown in fig. 1, when in use, the nox separation membrane module 21 is disposed in the fresh keeping space, the vacuum pump 22 is disposed outside the fresh keeping space, the vacuum pump 22 acts on the nox separation membrane module 21 through the exhaust tube 23, the nox separation membrane module 21 only allows oxygen to pass through, and nitrogen remains in the fresh keeping space, and the oxygen separated by the nox separation membrane module 21 is discharged to the outside space through the exhaust tube 23 and the vacuum pump 22.
Optionally, in the technical solution of this embodiment, the nitrogen-oxygen separation membrane module 21 is at least partially disposed inside the crisper drawer 10, and the vacuum pump 22 is disposed outside the crisper drawer 10. Wherein, should guarantee at least that the nitrogen gas circulation's of separation of nitrogen oxygen separation membrane module 21 one side is located fresh-keeping drawer 10 when using, let whole nitrogen oxygen separation membrane module 21 also be feasible in fresh-keeping drawer 10 certainly. The vacuum pump 22 is arranged outside the preservation drawer 10 and connected with the nitrogen-oxygen separation membrane module 21 through the exhaust tube 23, and the position of the vacuum pump 22 can be the position adjacent to the preservation drawer 10, and also can be the position far away from the preservation drawer 10, 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 21 through the exhaust tube 23. In addition, the vacuum pump 22 may be disposed within the preservation drawer 10, such that the vacuum pump 22 exhausts oxygen out of the preservation drawer 10 through an exhaust pipe.
More preferably, as shown in fig. 2, the nitrogen and oxygen separation membrane module 20 includes a wind power part 24, and the wind power part 24 is provided at the nitrogen and oxygen separation membrane module 21. When in use, the wind power component 24 can make the air at the nitrogen-oxygen separation membrane module 21 circulate to prevent the nitrogen from gathering, thereby improving the separation efficiency of the nitrogen-oxygen separation membrane module 20 on the oxygen in the fresh-keeping space.
As an alternative embodiment, the wind power unit 24 is a fan mounted on the nitrogen-oxygen separation membrane module 21. Preferably, the number of the fans is two, and the two fans are arranged on the nitrogen-oxygen separation membrane module 21 in parallel, so that the air circulation efficiency in the fresh-keeping space is improved. As a further alternative, the wind member 24 may also be a ventilation board that is movable to circulate the air flow.
Based on the structure of the fresh-keeping refrigerator, a refrigerator control method is further provided in preferred embodiment 1 of the present invention, fig. 3 shows an optional flowchart of the method, and as shown in fig. 3, the method includes the following steps S302-S306:
s302: detecting the use condition of the fresh-keeping drawer;
s304: determining a preservation control strategy of the preservation drawer according to the use condition;
s306: and controlling the operation of the adjustable gas regulating membrane component according to the preservation control strategy.
In the above embodiment, a refrigerator control scheme is provided, and in the using process of a user, the state of the objects such as fruits and vegetables in the preservation drawer can be judged by detecting the use condition of the preservation drawer, so that the preservation control strategy of the preservation drawer is determined according to the use condition, and the operation of the adjustable gas-regulating membrane module is controlled. The aim of quickly adjusting the suitable storage environment in the fresh-keeping drawer is achieved by formulating a fresh-keeping control strategy according to the use condition, so that the intelligence of the controlled atmosphere fresh-keeping system control is improved, and the freshness of the articles in the fresh-keeping drawer is improved.
As a preferred embodiment of the present invention, a temperature sensor is provided in the fresh-keeping drawer for detecting the temperature in the fresh-keeping drawer; the service condition of the fresh-keeping drawer is detected through temperature parameters, and the specific process comprises the following steps: detecting the temperature change of the fresh-keeping drawer within a preset time; and determining the service condition of the freshness preservation drawer according to the temperature change. Because the temperature change is usually caused by opening and closing the fresh-keeping drawer and/or the door body of the compartment where the fresh-keeping drawer is positioned (hereinafter, the door body is collectively referred to as a refrigerator door), the service condition of the fresh-keeping drawer can be accurately judged according to the temperature parameter.
When the temperature change is larger than or equal to a first preset temperature threshold value, determining that the using condition of the preservation drawer is that the preservation drawer is opened and a compartment where the preservation drawer is located is opened; the fresh-keeping control strategy at this moment is to carry out quick precooling on the fresh-keeping drawer. When the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the method also comprises the following steps of controlling the operation of the adjustable gas regulating membrane component according to the preservation control strategy: detecting whether the temperature of the fresh-keeping drawer is less than or equal to a fourth preset temperature threshold value or not; if so, performing quick air conditioning on the fresh-keeping drawer; wherein the modified atmosphere comprises: controlling the operation of the vacuum pump and the state of the regulating member; wherein, the vacuum pump operates according to the preset flow rate, the adjusting piece is in the air-conditioning adjusting state, and the effective use area of the air-conditioning film is 50 percent.
When the temperature changes greatly, the door body of the compartment where the preservation drawer is located and the preservation drawer are opened, a user puts fruits and vegetables or takes out the fruits and vegetables, the temperature in the box rises at the moment, a fruit and vegetable pre-cooling mode needs to be entered first, and the box body is cooled quickly. When the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the adjusting piece is controlled to be in the ventilation state, so that the box body is quickly cooled to a preset temperature (for example, 8 ℃). And then, controlling the preservation drawer to be closed, wherein the refrigerator door is also closed at the moment, the flow rate of the vacuum pump is greater than the preset flow rate, the regulating piece is in a gas-conditioning regulation state, and the effective use area of the gas-conditioning film is between 0 and 100 percent. For example, the flow rate of the vacuum pump is 6L/min, and the area of the air-conditioned membrane is S-1/2S0。
When the temperature change is less than the first preset temperature threshold, it may be determined that the crisper drawer has not been opened. Whether the refrigerator door is opened at this time is not determined. For this purpose, a further decision is made: when the temperature change is smaller than a first preset temperature threshold and larger than a second temperature threshold, determining that the using condition of the preservation drawer is that the preservation drawer is not opened and the compartment where the preservation drawer is located is opened; and when the temperature change is less than or equal to a second preset temperature threshold and greater than or equal to a third temperature threshold, determining that the using condition of the freshness drawer is that the freshness drawer is not opened and the compartment where the freshness drawer is located is not opened. Wherein, the first preset temperature threshold value is larger than the second preset temperature threshold value and larger than the third temperature threshold value.
Namely, the temperature change can determine that the refrigerator door is opened at the moment in a preset interval, thereby having certain influence on the temperature in the fresh-keeping drawer. In contrast, determining the preservation control strategy of the preservation drawer is to perform conventional air conditioning on the preservation drawer; when the conventional air regulation is carried out, the regulating piece is controlled to be in an air regulation fully-opened state, and the effective use area of the air regulation film is 100 percent, so that the regulation can be carried out as soon as possible.
When the temperature change is in a smaller interval, the freshness control strategy of the freshness drawer is determined to be slow air conditioning of the freshness drawer when the using condition is that the freshness drawer is not opened and the compartment where the freshness drawer is located is not opened. When slow air conditioning is performed, the conditioning piece is controlled to be in a condition of air conditioning adjustment, and the effective use area of the conditioning film is between 0 and 100 percent, such as 50 percent.
After the adjustment is carried out, namely the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer and control the operation of the vacuum pump and the state of the adjusting piece, the continuous detection control is also carried out. The method specifically comprises the following steps: and detecting the temperature change of the fresh-keeping drawer within the preset time, and adjusting the state of the adjusting piece according to the temperature change. When the temperature change is less than or equal to a fifth preset temperature threshold value, controlling the regulating piece to be in a fully closed state; and when the temperature change is larger than a fifth preset temperature threshold value, controlling the adjusting piece to be in a full-open state. The temperature change is small, which indicates that the temperature in the box is reduced slowly, the fruits and vegetables with higher temperature are placed in the box, and the water and oxygen are diffused and consumed quickly at high temperature, so that a large area of air conditioning film is needed, water vapor is discharged in time, and overhigh humidity is prevented, so that the adjusting piece is controlled to be in a fully closed state. The temperature change is large, which indicates that the temperature in the box is reduced quickly, and new fruits and vegetables are not put in the box, and the air conditioning film with the lowest area can be adjusted at the moment, so that the humidity is increased quickly. Environmental parameters such as temperature, humidity and the like in the fresh-keeping drawer are matched with the state of the articles in the drawer through the adjustment, so that the preservation time of fruits and vegetables is prolonged.
After the state of the regulating part is regulated according to the temperature change, the temperature of the fresh-keeping drawer is also detected, and the difference value between the temperature of the fresh-keeping drawer and the preset temperature is determined; if the difference value is in the preset interval, performing slow air conditioning on the preservation drawer; otherwise, the temperature change of the fresh-keeping drawer in the preset time is detected again. That is, if the oxygen in the fruit and vegetable box has been reduced to a proper concentration, the temperature is also reduced to a set temperature, at this time, the slow air conditioning state is maintained, the vacuum pump is closed, and the membrane area is adjusted to be S-1/2S0。
Meanwhile, the control process is sent to the running process of the air-conditioning preservation system, namely before the use condition of the preservation drawer is detected, the method further comprises the following steps: controlling the controlled atmosphere preservation system to start to operate; detecting whether the fresh-keeping drawer is completely closed; if yes, triggering and detecting the service condition of the freshness preservation drawer; otherwise, prompting the user to close the fresh-keeping drawer.
Another refrigerator control method is also provided in preferred embodiment 1 of the present invention, fig. 4 shows an alternative flowchart of the method, and as shown in fig. 4, the method includes the following steps S401 to S418:
s401: the user starts the air conditioning function according to the requirement;
s402: detecting whether the drawer is closed;
s403: prompting a user to close the drawer; after the user opens the air-conditioning function according to the requirement, firstly, identifying whether the fresh-keeping drawer is tightly closed or not, if not, reminding the user of tightly closing the fresh-keeping drawer by the system, and identifying whether the fresh-keeping drawer is tightly closed again until tightly closing;
s404: identifying the temperature T in the drawer, and calculating the temperature change delta T, for example, subtracting the temperature of the fruit and vegetable box before 20min from the temperature of the fruit and vegetable box after 20 min;
s405: if delta T is more than or equal to-2 and less than or equal to 2, the procedure goes to step S406;
S406：S＝1/2S0when the air conditioning state is maintained, the vacuum pump is closed, and the membrane area is adjusted to be S-1/2S0；
S407: if 2 <. DELTA.T < 5, go to step S408;
S408：S＝S0when the temperature changes greatly, the temperature in the box drops quickly, new fruits and vegetables are not put in the box, and the air conditioning film with the lowest area can be adjusted to quickly increase the humidity. The environmental parameters such as temperature, humidity and the like in the fresh-keeping drawer are matched with the state of the articles in the drawer through the adjustment, so that the preservation time of the fruits and vegetables is prolonged;
s409: if DeltaT is more than or equal to 5, the step S410 is entered; when the temperature change is large, the door body of the compartment where the preservation drawer is located and the preservation drawer are opened, a user puts fruits and vegetables or takes out the fruits and vegetables, the temperature in the box rises at the moment, a fruit and vegetable pre-cooling mode needs to be firstly entered, and the box body is rapidly cooled;
s410: entering a fruit and vegetable precooling mode; controlling the regulating part to be in the ventilation state, so that the box body is quickly cooled to a preset temperature (for example, 8 ℃) below;
s411: if T is less than or equal to 8, go to step S412, otherwise, return to step S410;
s412: such asThe flow rate of the fruit vacuum pump is 6L/min, and S is 1/2S0Namely, after the temperature of the box body is reduced to below 8 ℃, the preservation drawer is controlled to be closed, the refrigerator door is also closed at the moment, the flow rate of the vacuum pump is greater than the preset flow rate, the regulating piece is in a gas-conditioning regulation state, and the effective use area of the gas-conditioning film is between 0 and 100 percent. For example, the flow rate of the vacuum pump is 6L/min, and the area of the air-conditioned membrane is S-1/2S0；
S413: detecting delta T, and if the delta T is less than or equal to minus 2, controlling the regulating part to be in a fully closed state when the temperature change is less than or equal to minus 2;
s414: if S is 0, the fully closed state is achieved;
s415: if delta T > -2, namely when the temperature change is larger than-2, controlling the regulating part to be in a full-open state;
s416: if S ═ S0At this time, the state is a full open state;
s417: if T-T0 is more than or equal to-2 and less than or equal to 2, the temperature of the fresh-keeping drawer is detected after the state of the adjusting piece is adjusted according to the temperature change, and the difference value between the temperature of the fresh-keeping drawer and the preset temperature is determined; if the difference value is in the preset interval, performing slow air conditioning on the preservation drawer; otherwise, re-detecting the temperature change of the fresh-keeping drawer within the preset time;
s418: closing the vacuum pump; that is, if the oxygen in the fruit and vegetable box has been reduced to a proper concentration, the temperature is also reduced to a set temperature, at this time, the slow air conditioning state is maintained, the vacuum pump is closed, and the membrane area is adjusted to be S-1/2S0. And then returns to step S402 again.
Through the temperature of monitoring refrigerator fruit vegetables box, discernment fruit vegetables are put into with the switching of fruit vegetables box, to the coordinated control of nitrogen oxygen separation membrane subassembly and gas regulation membrane, through different control modes reduce fruit vegetables temperature, the scattered water volume fast, play rapid cooling, prevent the effect of condensation. Meanwhile, after the pre-cooling mode is finished, the nitrogen-oxygen separation membrane module and the air-conditioning membrane are controlled in a linkage mode, and the purpose of quickly adjusting the suitable storage environment of the fruits and vegetables is achieved.
Example 2
Based on the refrigerator control method provided in the above embodiment 1, there is also provided in a preferred embodiment 2 of the present invention, a refrigerator, the mechanism of which has been illustrated in fig. 1, that is, which includes:
a fresh-keeping drawer 10, a nitrogen-oxygen separation membrane module 20 and an adjustable air-conditioning membrane module 30. Wherein the content of the first and second substances,
a fresh-keeping space which is relatively isolated from air is formed in the fresh-keeping drawer 10, and the adjustable air-conditioning membrane assembly 30 is arranged on the fresh-keeping drawer 10.
The nitrogen-oxygen separation membrane module 20 is used for separating oxygen from the fresh-keeping space.
The modified atmosphere module 30 comprises a modified atmosphere film 31 and a regulating member 32, wherein the regulating member 32 regulates the effective use area of the modified atmosphere film 31, and the modified atmosphere film 31 is used for regulating the oxygen concentration and the carbon dioxide concentration of the fresh-keeping space relative to the external space.
The temperature sensor is located inside the crisper drawer 10 for detecting the temperature inside the crisper drawer 10.
By applying the technical scheme of the invention, oxygen can be separated from the fresh-keeping space through the nitrogen-oxygen separation membrane component 20, so that a low-oxygen atmosphere is created in the fresh-keeping space, and the fresh-keeping of food materials such as fruits and vegetables is facilitated. The oxygen concentration and the carbon dioxide concentration in the fresh-keeping space can be finely adjusted through the air-adjusting film 31, the fresh-keeping space is used, the oxygen concentration in the fresh-keeping space can be further reduced under the respiration effect of the food materials such as fruits and vegetables, the carbon dioxide concentration is increased, therefore, the oxygen in the external space can be properly supplemented into the fresh-keeping space through the air-adjusting film 31, the carbon dioxide in the fresh-keeping space is scattered to the external space, and the anaerobic respiration of the food materials such as fruits and vegetables caused by the over-low oxygen concentration and the over-high carbon dioxide concentration in the fresh-keeping space is avoided. The effective use area of the modified atmosphere film 31 is adjusted through the adjusting piece 32, so that the adjusting effect of the modified atmosphere film 31 on the oxygen concentration and the carbon dioxide concentration in the fresh-keeping space can be adjusted, the situation that the oxygen is too much enters the fresh-keeping space to destroy the low-oxygen atmosphere is avoided, and the anaerobic respiration of food materials such as fruits and vegetables caused by too low oxygen concentration and too high carbon dioxide concentration in the fresh-keeping space is also avoided.
In addition, it should be noted that the modified atmosphere film 31 can also maintain the humidity in the fresh-keeping space at a certain level, which is beneficial to keeping food materials such as fruits and vegetables fresh.
As shown in fig. 5, in the preferred embodiment, the adjustable gas-regulating membrane module 30 further includes a vent hole 33, the vent hole 33 is used for communicating the fresh-keeping space with the external space, and the adjusting member 32 is used for adjusting the opening and closing of the vent hole 33.
As shown in fig. 5, the damper 32 may optionally include a fully closed state, a modified atmosphere state, a modified fully open state, and a vent state. Wherein, in the fully closed state, the effective use area of the air adjusting film 31 is adjusted to be 0 percent, and the vent hole 33 is closed; in the air-conditioning adjusting state, the effective use area of the air-conditioning film 31 is adjusted to be 0-100%, and the vent hole 33 is closed; in the air-conditioning fully-opened state, the effective use area of the air-conditioning film 31 is adjusted to be 100%, and the vent hole 33 is closed; in the ventilation state, the ventilation hole 33 is opened.
In a preferred embodiment, the controlled atmosphere membrane 31 has an effective use area of 0% in the aeration state. As other alternative embodiments, it is also possible that no limitation on the effective usable area of the modified atmosphere film 31 is required after the vent hole 33 is opened in the venting state. It should be noted that, after the vent hole 33 is opened, the fresh food space and the external space are in a complete linkage state, so that the resistance to the flow of air is minimal, and thus the air flow preferentially passes through the vent hole 33.
As an alternative, in the solution of the present embodiment, the tunable gas atmosphere module 30 includes a substrate 34, the gas atmosphere film 31 is mounted on the substrate 34, the vent hole 33 is opened on the substrate 34, and the adjusting member 32 is movably disposed on the substrate 34 to adjust the effective use area of the gas atmosphere film 31 and/or adjust the opening and closing of the vent hole 33. When in use, the effective use area of the air-conditioning film 31 can be adjusted through the movable adjusting piece 32; the opening and closing of the ventilation hole 33 can also be regulated by the movable regulator 32.
As a preferred embodiment, as shown in fig. 5, the adjusting member 32 is a baffle plate, which is slidably disposed on the base plate 34 and is used for adjusting the effective use area of the modified atmosphere film 31 and/or adjusting the opening and closing of the vent hole 33 in a shielding/avoiding manner. The control of the effective use area of the modified atmosphere film 31 and the control of the opening and closing of the vent hole 33 can be realized more conveniently by the design of the slidable baffle plate. When the effective use area of the air-conditioning film 31 needs to be adjusted, the baffle can selectively shield/avoid the action area of the air-conditioning film 31 and the fresh-keeping space or the external space; when the vent hole 33 needs to be opened, the baffle plate is made to avoid the vent hole 33, and when the vent hole 33 needs to be closed, the baffle plate is made to shield the vent hole 33.
Specifically, for several states of the adjusting member 32, in the fully closed state, the baffle plate moves to a position where it completely blocks the modified atmosphere film 31 and a position where it completely blocks the vent hole 33; in the modified atmosphere state, the baffle plate moves to a position for partially shielding the modified atmosphere film 31 and a position for completely shielding the vent hole 33; in the air-conditioning full-open state, the baffle plate moves to the position of avoiding the air-conditioning film 31 and the position of completely shielding the vent hole 33; in the ventilation state, the baffle plate moves to a position to escape the ventilation hole 33. As shown in fig. 5, the baffle plate can have two gears in the modified atmosphere state, and the effective area of the modified atmosphere film 31 is different under different gears. As other alternative embodiments, the damper may have more shift positions.
More preferably, in the technical solution of the present embodiment, the tunable gas atmosphere module 30 further includes a slide rail 35, the slide rail 35 is installed on the base plate 34, and the baffle is slidably installed on the slide rail 35. Through the cooperation of slide rail 35 and baffle, can let the gliding more smooth and easy of baffle.
More preferably, in the technical solution of the present embodiment, the tunable gas atmosphere module 30 further includes a slide rail 35, the slide rail 35 is installed on the base plate 34, and the baffle is slidably installed on the slide rail 35. Through the cooperation of slide rail 35 and baffle, can let the gliding more smooth and easy of baffle.
As shown in fig. 2, in the technical solution of this embodiment, the nitrogen-oxygen separation membrane module 20 includes a nitrogen-oxygen separation membrane module 21 and a vacuum pump 22, the nitrogen-oxygen separation membrane module 21 is used for separating nitrogen and oxygen, the vacuum pump 22 is connected to the nitrogen-oxygen separation membrane module 21 through an exhaust pipe 23, and the vacuum pump 22 exhausts oxygen from the fresh-keeping space through the nitrogen-oxygen separation membrane module 21. As shown in fig. 1, when in use, the nox separation membrane module 21 is disposed in the fresh keeping space, the vacuum pump 22 is disposed outside the fresh keeping space, the vacuum pump 22 acts on the nox separation membrane module 21 through the exhaust tube 23, the nox separation membrane module 21 only allows oxygen to pass through, and nitrogen remains in the fresh keeping space, and the oxygen separated by the nox separation membrane module 21 is discharged to the outside space through the exhaust tube 23 and the vacuum pump 22.
More preferably, as shown in fig. 2, the nitrogen and oxygen separation membrane module 20 includes a wind power part 24, and the wind power part 24 is provided at the nitrogen and oxygen separation membrane module 21. When in use, the wind power component 24 can make the air at the nitrogen-oxygen separation membrane module 21 circulate to prevent the nitrogen from gathering, thereby improving the separation efficiency of the nitrogen-oxygen separation membrane module 20 on the oxygen in the fresh-keeping space.
As an alternative embodiment, the wind power unit 24 is a fan mounted on the nitrogen-oxygen separation membrane module 21. Preferably, the number of the fans is two, and the two fans are arranged on the nitrogen-oxygen separation membrane module 21 in parallel, so that the air circulation efficiency in the fresh-keeping space is improved. As other alternative embodiments, the wind member 24 may also be a ventilation board that is movable to circulate the air flow
Example 3
Based on the refrigerator control method provided in the above embodiment 1, there is also provided in a preferred embodiment 3 of the present invention a storage medium containing computer-executable instructions for performing the refrigerator control method as described above when executed by a computer processor.
In the above embodiment, a refrigerator control scheme is provided, and in the using process of a user, the state of the objects such as fruits and vegetables in the preservation drawer can be judged by detecting the use condition of the preservation drawer, so that the preservation control strategy of the preservation drawer is determined according to the use condition, and the operation of the adjustable gas-regulating membrane module is controlled. The aim of quickly adjusting the suitable storage environment in the fresh-keeping drawer is achieved by formulating a fresh-keeping control strategy according to the use condition, so that the intelligence of the controlled atmosphere fresh-keeping system control is improved, and the freshness of the articles in the fresh-keeping drawer is improved.
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 (15)

1. The refrigerator control method is characterized in that the refrigerator comprises a fresh-keeping drawer and an air-conditioning fresh-keeping system; the modified atmosphere preservation system comprises an adjustable modified atmosphere film assembly, an adjustable modified atmosphere film and a regulating piece, wherein the adjustable modified atmosphere film assembly is arranged on the preservation drawer and comprises a modified atmosphere film and a regulating piece, the modified atmosphere film is used for regulating the oxygen concentration and the carbon dioxide concentration in the preservation drawer, and the regulating piece is used for regulating the effective use area of the modified atmosphere film; the method comprises the following steps:
detecting the use condition of the fresh-keeping drawer;
determining a preservation control strategy of the preservation drawer according to the using condition;
and controlling the operation of the adjustable controlled atmosphere module according to the preservation control strategy.
2. The method of claim 1, wherein a temperature sensor is provided in the crisper drawer for detecting the temperature within the crisper drawer; detecting the use condition of the freshness drawer, comprising:
detecting the temperature change of the fresh-keeping drawer within a preset time;
and determining the service condition of the freshness drawer according to the temperature change.
3. The method of claim 2, wherein determining the use of the crisper drawer based on the temperature change comprises:
when the temperature change is larger than or equal to a first preset temperature threshold value, determining that the using condition of the preservation drawer is that the preservation drawer is opened and a compartment where the preservation drawer is located is opened;
when the temperature change is smaller than the first preset temperature threshold and larger than the second temperature threshold, determining that the using condition of the freshness drawer is that the freshness drawer is not opened and the compartment where the freshness drawer is located is opened;
when the temperature change is smaller than or equal to the second preset temperature threshold and larger than or equal to a third temperature threshold, determining that the using condition of the freshness drawer is that the freshness drawer is not opened and the compartment where the freshness drawer is located is not opened;
wherein the first preset temperature threshold > the second preset temperature threshold > the third temperature threshold.
4. The method of claim 3, wherein determining a crisper control strategy for the crisper drawer based on the usage comprises:
when the using condition is that the preservation drawer is opened, determining a preservation control strategy of the preservation drawer as rapid precooling of the preservation drawer;
when the using condition is that the fresh-keeping drawer is not opened and the compartment where the fresh-keeping drawer is located is opened, determining a fresh-keeping control strategy of the fresh-keeping drawer as conventional air conditioning of the fresh-keeping drawer;
and when the using condition is that the preservation drawer is not opened and the compartment where the preservation drawer is located is not opened, determining the preservation control strategy of the preservation drawer as slow air conditioning of the preservation drawer.
5. The method of claim 4, wherein the adjustment member comprises:
adjusting the effective use area of the air-conditioned membrane to be 0%, and closing the full-closed state of the vent hole;
adjusting the effective use area of the air-conditioning film to be 0-100%, and closing the air-conditioning adjustment state of the vent hole;
adjusting the effective use area of the air-conditioning film to be 100%, and closing the air-conditioning fully-opened state of the vent hole;
a vent state to open the vent hole.
6. The method of claim 5, wherein controlling the operation of the tunable gas regulating membrane module according to the freshness control strategy comprises:
when the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the adjusting piece is controlled to be in the ventilation state;
when the preservation control strategy of the preservation drawer is to carry out conventional air conditioning on the preservation drawer, controlling the adjusting piece to be in the air conditioning fully-opened state;
and when the preservation control strategy of the preservation drawer is to perform slow air conditioning on the preservation drawer, controlling the adjusting piece to be in the air conditioning adjusting state.
7. The method of claim 5, wherein the modified atmosphere preservation system further comprises: the nitrogen-oxygen separation membrane module comprises a nitrogen-oxygen separation membrane module and a vacuum pump and is used for separating oxygen from the fresh-keeping drawer; when the preservation control strategy of the preservation drawer is to carry out quick precooling on the preservation drawer, the method also comprises the following steps of controlling the operation of the adjustable gas regulating membrane module according to the preservation control strategy:
detecting whether the temperature of the fresh-keeping drawer is less than or equal to a fourth preset temperature threshold value or not;
if so, performing quick air conditioning on the fresh-keeping drawer; wherein the modified atmosphere comprises: controlling the operation of the vacuum pump and the state of the regulating member; the vacuum pump operates according to a preset flow rate, the adjusting piece is in the air-conditioning adjusting state, and the effective use area of the air-conditioning film is 50%.
8. The method of claim 7, further comprising, after controlling the operation of the vacuum pump and the state of the regulating member:
detecting the temperature change of the fresh-keeping drawer within the preset time, and adjusting the state of the adjusting piece according to the temperature change;
detecting the temperature of the preservation drawer, and determining the difference value between the temperature of the preservation drawer and a preset temperature;
if the difference value is in a preset interval, performing slow air conditioning on the fresh-keeping drawer;
otherwise, the temperature change of the fresh-keeping drawer in the preset time is detected again.
9. The method of claim 8, wherein adjusting the state of the conditioning element based on the temperature change comprises:
when the temperature change is less than or equal to a fifth preset temperature threshold value, controlling the adjusting piece to be in the fully closed state;
and when the temperature change is larger than a fifth preset temperature threshold value, controlling the adjusting piece to be in the fully-open state.
10. The method of claim 1, further comprising, prior to detecting use of the crisper drawer:
controlling the controlled atmosphere preservation system to start to operate;
detecting whether the fresh-keeping drawer is completely closed;
if yes, triggering and detecting the service condition of the freshness preservation drawer;
otherwise, prompting the user to close the fresh-keeping drawer.
11. A refrigerator, characterized by comprising:
the fresh-keeping drawer (10), the fresh-keeping space that has relatively isolated air is formed in the fresh-keeping drawer (10);
a nitrogen-oxygen separation membrane module (20), wherein the nitrogen-oxygen separation membrane module (20) is used for separating oxygen from the fresh-keeping space;
the adjustable gas-regulating membrane assembly (30) is arranged on the fresh-keeping drawer (10), the adjustable gas-regulating membrane assembly (30) comprises a gas-regulating membrane (31) and a regulating piece (32), the regulating piece (32) regulates the effective use area of the gas-regulating membrane (31), and the gas-regulating membrane (31) is used for regulating the oxygen concentration and the carbon dioxide concentration of the fresh-keeping space relative to the external space;
and the temperature sensor is positioned inside the fresh-keeping drawer (10) and used for detecting the temperature in the fresh-keeping drawer (10).
12. The refrigerator according to claim 11, wherein the adjustable gas regulating membrane module (30) further comprises a vent hole (33), the vent hole (33) is used for communicating the fresh space and the external space, and the adjusting member (32) is also used for adjusting the opening and closing of the vent hole (33).
13. The refrigerator according to claim 12, characterized in that the adjusting member (32) comprises:
adjusting the effective use area of the air adjusting film (31) to be 0%, and closing the full-closed state of the vent hole (33);
adjusting the effective use area of the air-conditioning film (31) to be 0-100%, and closing the air-conditioning adjustment state of the vent hole (33);
the effective use area of the air-conditioning film (31) is adjusted to be 100%, and the air-conditioning fully-opened state of the vent hole (33) is closed;
a ventilation state in which the ventilation hole (33) is opened.
14. The refrigerator according to claim 11, wherein the nitrogen-oxygen separation membrane module (20) comprises:
a nitrogen-oxygen separation membrane module (21) for separating nitrogen and oxygen;
and the vacuum pump (22) is connected with the nitrogen-oxygen separation membrane module (21) through an exhaust pipe (23), and the vacuum pump (22) is used for exhausting oxygen in the fresh-keeping space through the nitrogen-oxygen separation membrane module (21).
15. A storage medium containing computer-executable instructions, characterized in that the computer-executable instructions, when executed by a computer processor, are for performing the refrigerator control method of any one of claims 1 to 10.
CN202110467057.2A 2021-04-28 2021-04-28 Refrigerator control method and refrigerator Pending CN113137808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110467057.2A CN113137808A (en) 2021-04-28 2021-04-28 Refrigerator control method and refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110467057.2A CN113137808A (en) 2021-04-28 2021-04-28 Refrigerator control method and refrigerator

Publications (1)

Publication Number Publication Date
CN113137808A true CN113137808A (en) 2021-07-20

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Country Link
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140034385A (en) * 2012-09-10 2014-03-20 동국대학교 산학협력단 Apparatus for preserving agricultural products to maintain beneficial modified atmosphere in container by controlling opening/closing of vent hole through sensing its gas concentration, and method for preserving the same
CN106705535A (en) * 2016-12-02 2017-05-24 青岛海尔股份有限公司 Refrigerating and freezing device and preservation control method thereof
CN111964349A (en) * 2020-07-22 2020-11-20 珠海格力电器股份有限公司 Preservation control method and device, refrigerator, storage medium and processor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140034385A (en) * 2012-09-10 2014-03-20 동국대학교 산학협력단 Apparatus for preserving agricultural products to maintain beneficial modified atmosphere in container by controlling opening/closing of vent hole through sensing its gas concentration, and method for preserving the same
CN106705535A (en) * 2016-12-02 2017-05-24 青岛海尔股份有限公司 Refrigerating and freezing device and preservation control method thereof
CN111964349A (en) * 2020-07-22 2020-11-20 珠海格力电器股份有限公司 Preservation control method and device, refrigerator, storage medium and processor

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