CN110906651A - Control method for supercooling non-freezing storage and refrigerator - Google Patents

Control method for supercooling non-freezing storage and refrigerator Download PDF

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Publication number
CN110906651A
CN110906651A CN201910959971.1A CN201910959971A CN110906651A CN 110906651 A CN110906651 A CN 110906651A CN 201910959971 A CN201910959971 A CN 201910959971A CN 110906651 A CN110906651 A CN 110906651A
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CN
China
Prior art keywords
temperature
cooled
cooling chamber
cooling
freezing
Prior art date
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Pending
Application number
CN201910959971.1A
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Chinese (zh)
Inventor
钱梅双
辛海亚
梁起
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
Hefei Jing Hong Electrical Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Hefei Jing Hong Electrical Co Ltd
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, Hefei Jing Hong Electrical Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201910959971.1A priority Critical patent/CN110906651A/en
Publication of CN110906651A publication Critical patent/CN110906651A/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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

Abstract

The invention relates to a supercooling non-freezing storage control method and a refrigerator, wherein after a cooling object is placed in the refrigerator for storage, a supercooling non-freezing function is started, an electric field generating device is started, and the temperature of a cooling chamber of the refrigerator is periodically controlled through a control unit, wherein a first process and a second process are respectively cooled and heated according to preset target temperature, and the second process is finished and returns to the first process to start circulation control. The invention does not need complex control, is simple to realize, can realize supercooling and non-freezing preservation of the cooling materials, and can effectively solve the problem of short-term storage and fresh keeping of the cooling materials such as fruits, vegetables, meat and the like by consumers.

Description

Control method for supercooling non-freezing storage and refrigerator
Technical Field
The invention relates to a refrigerator control method and a refrigerator, in particular to a control method for supercooling non-freezing storage and a refrigerator.
Background
With the rapid development of air-cooled refrigerators and the improvement of the fresh-keeping requirements of consumers on cooled objects, the multifunctional refrigerator is rapidly developed, and the requirements on the storage temperature of food in the refrigerator are more and more strict.
Food storage temperature mainly includes fixed single temperature control mode and high temperature, low temperature alternative control mode among the prior art, thereby fixed single low temperature control and high temperature, low temperature alternative control mode long-time low temperature control can all make the cooling object more and more hard produce and freeze, and this can lead to the cooling object inner structure to be destroyed, and nutrition runs off when unfreezing, and fresh-keeping effect is poor, can't be good the flavor of keeping food.
Disclosure of Invention
According to the invention, the temperature of the cooling chamber of the refrigerator is periodically controlled, the first process is carried out according to the preset temperature for cooling, the second process is carried out according to the preset target temperature for heating, the cooling object can be controlled not to be frozen near the freezing point, the fresh-keeping period of the cooling object such as fruits and vegetables is prolonged, and meanwhile, the meat is supercooled and stored without being frozen.
Specifically, the method comprises the following steps:
1. a method of subcooling a non-freezing storage, comprising the steps of:
alternately performing a first step and a second step by subjecting the object to be cooled to the action of an electric field while the object to be cooled is not frozen during the supercooling of the object to be cooled, wherein:
a first step of reducing the temperature of the object to be cooled to a first temperature lower than the freezing point of the object to be cooled;
a second step of raising the temperature of the object to be cooled to a second temperature equal to or higher than the freezing point of the object to be cooled;
the temperature reduction speed of the first procedure is less than the temperature rise speed of the second procedure.
2. A method of controlling subcooling in a non-freezing storage, comprising the steps of:
selecting a supercooling non-freezing function to enable the cooled object to be under the action of an electric field;
cooling the cooling chamber with corresponding function to refrigerate the cooled object;
alternately performing the first and second processes on the cooling chamber when the temperature of the cooling chamber reaches a second temperature equal to or higher than the freezing point of the object to be cooled;
a first step of reducing the temperature of the object to be cooled to a first temperature lower than the freezing point of the object to be cooled;
a second step of raising the temperature of the object to be cooled to a second temperature equal to or higher than the freezing point of the object to be cooled;
the temperature reduction speed of the first procedure is less than the temperature rise speed of the second procedure.
Preferably, in the first step, the temperature reduction process is controlled according to the temperature of the cooling chamber detected in real time.
Preferably, in the second step, the temperature raising process is controlled based on the temperature of the cooling chamber detected in real time.
Preferably, the first temperature and the second temperature are preset temperatures.
In addition, the invention also provides a refrigerator for storing the cooled substance without freezing, and the storage method and the control method of the invention are adopted.
Specifically, a refrigerated non-freezing storage refrigerator includes:
a cooling chamber for performing supercooling non-freezing preservation on the cooled object;
the electric field generating device generates an electric field, delays the phase change of water and reduces the freezing probability of a cooling object;
a cooling device for supplying cold air into the cooling chamber;
a control unit for controlling the electric field generating device and the refrigerating device to alternately perform a first step of reducing the temperature of the object to be cooled to a first temperature lower than the freezing point of the object to be cooled; a second step of raising the temperature of the object to be cooled to a second temperature equal to or higher than the freezing point of the object to be cooled;
the temperature reduction speed of the first procedure is less than the temperature rise speed of the second procedure.
Preferably, the control unit includes: temperature regulation apparatus, temperature sensor, display, its characterized in that: the temperature adjusting device is used for adjusting the temperature of the cooling chamber to enable the cooling chamber to operate according to a preset temperature; the temperature sensor is used for detecting the temperature of the cooling chamber in real time; the display panel is provided with a supercooling unfreezing function selecting key, and a user can select the supercooling unfreezing function according to the requirement.
Preferably, the cooling device is provided with a damper and an air duct, and the damper and the air duct are adjusted to adjust the air volume and/or the air temperature of the cold air supplied into the cooling chamber, so that the temperature in the cooling chamber is decreased to a first temperature in the first step and increased to a second temperature in the second step.
Preferably, the first temperature is set in the range of-10 ℃ to 0 ℃ and the second temperature is set in the range of 0 ℃ to 5 ℃.
The invention can prolong the fresh-keeping time of the cooling materials such as fruits, vegetables and the like, keep the meat in a fresh, tender, supercooled and unfrozen state when being stored, and avoid damaging the internal structure of the cooling materials, causing nutrition loss and further influencing the flavor of the cooling materials.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic diagram of the control logic of embodiment 2 of the present invention;
FIG. 2 is a schematic diagram of the control logic of embodiment 3 of the present invention;
FIG. 3 is a schematic diagram of the electrical principle in embodiments 2 and 3 of the present invention;
FIG. 4 is a schematic structural view of a refrigerating apparatus according to embodiments 2 and 3 of the present invention;
FIG. 5 is a schematic view of embodiment 1 of the refrigerator according to the present invention;
FIG. 6 is a schematic view of a cooling chamber in examples 1, 2 and 3 of the present invention;
FIG. 7 is a graph showing the temperature change of the cooling chamber in example 2 of the present invention;
FIG. 8 is a graph showing the temperature change of the cooling chamber in example 3 of the present invention;
in the drawings:
1-a refrigerating chamber; 2-a cooling chamber; 3-freezing chamber; 4-a temperature sensor; 5-electric field generating means.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It is to be understood that, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The invention aims to provide a supercooling non-freezing storage method and a refrigerator, which are used for supercooling and non-freezing storage of food, so that the food enters a supercooling state, freezing of the food is avoided even if the temperature of the food is reduced to a freezing point or below the freezing point, and the problems that the food is harder and harder to freeze, the fresh-keeping time is short, the unfreezing time is long, and the flavor of the unfrozen food is reduced due to long-time low-temperature control in a single fixed low-temperature control and high-temperature and low-temperature alternative control mode are solved.
For further explanation, the present invention takes an air-cooled refrigerator as an example, and provides the following specific examples. The air-cooled refrigerator uses cold air as a carrier, and the opening degree of a freezing air door and the rotating speed of a freezing fan can be kept unchanged in the storage process.
Example 1:
as shown in fig. 5, the present embodiment provides a supercooling non-freezing storage refrigerator, including:
the cooling chamber 2 can perform supercooling and non-freezing preservation on the cooled object therein.
The electric field generating device 5 generates an electric field to delay the phase change of water and reduce the freezing probability of the cooling object.
Preferably, the electric field generator 5 is a high-voltage electrostatic field generator, and generates a high-voltage electrostatic field, so that the freezing probability of the cooling object is reduced, and further, the freezing damage of the cell tissue caused by the generation of frozen ice crystals in the cooling object is reduced.
Preferably, the electric field generating device 5 is set to have a voltage range of 1600V-2200V, which can ensure that most food materials are not frozen, and the electric field always exists under the power-on condition, which can ensure that food is not frozen while being kept fresh to the maximum extent.
Specifically, the cooling device is provided with a damper and an air duct, and adjusts the amount of cold air supplied into the cooling chamber by adjusting the damper and the air duct, so that the temperature in the cooling chamber is reduced to a first temperature in a first step and increased to a second temperature in a second step.
The refrigerating device for generating cold air specifically comprises: the refrigerating device of the embodiment comprises a compressor, a condenser, a condensation preventing pipe, a drying filter, a freezing evaporator and a gas return pipe assembly, and is shown in fig. 4.
The control unit includes: temperature regulation apparatus, temperature sensor, display, its characterized in that: the temperature adjusting device is used for adjusting the temperature of the cooling chamber to enable the cooling chamber to operate according to a preset target temperature; the temperature sensor 4 is used for detecting the temperature of the cooling chamber in real time; the display panel is provided with a supercooling unfreezing function selecting key, and a user can select the supercooling unfreezing function according to the requirement.
A control unit for controlling the electric field generating device and the refrigerating device to alternately perform a first step of reducing the temperature of the object to be cooled to a first temperature lower than the freezing point of the object to be cooled; a second step of raising the temperature of the object to be cooled to a second temperature equal to or higher than the freezing point of the object to be cooled;
the temperature reduction speed of the first procedure is less than the temperature rise speed of the second procedure.
Preferably, the temperature sensor 4 is provided in the cooling chamber.
Preferably, the electric field generating device 5 is disposed at the top of the refrigerator.
After the user puts into the cooling chamber with the cooling object, select the not function of freezing of subcooling, heat up and lower the temperature through periodic accurate control cooling chamber, need not complicated operation, can effectively solve perishable cooling object short-term storage fresh-keeping problem.
Example 2:
the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings 1: a method of controlling subcooling in a non-freezing storage, comprising the steps of:
selecting the supercooling unfreezing function, and starting the electric field generating device 5 to enable the cooled object to be under the action of the electric field;
cooling the cooling chamber 2 with the corresponding function, and refrigerating the cooled object;
alternately performing the first and second processes on the cooling chamber 2 when the temperature of the cooling chamber 2 reaches a second temperature equal to or higher than the freezing point of the object to be cooled;
a first step: cooling the temperature of the cooled object to a first temperature lower than the freezing point of the cooled object;
specifically, the first temperature of the cooling chamber 2 is preset as T1, the control unit controls the refrigerating device and the temperature adjusting device to increase the cold air input of the cooling chamber 2, namely, an air door and an air channel of the temperature adjusting device are opened, the rotating speed of a compressor in the refrigerating device is increased to increase the cold air input of the cooling chamber 2, the temperature of the cooling chamber 2 is reduced by taking the T1 as a target, the temperature sensor 4 is adopted to detect the temperature of the cooling chamber 2 in real time, and when the temperature sensor 4 detects that the temperature of the cooling chamber 2 reaches a first starting temperature point T1ON1When the air door of the cooling chamber 2 is opened, cold air enters the cooling chamber 2, so that the temperature of the cooling chamber 2 is reduced; when the temperature sensor 4 detects that the temperature of the cooling chamber 2 reaches the first stop temperature point TOFF1At this time, the damper of the cooling compartment 2 is closed to prevent the entry of cold air into the cooling compartment 2.
Preferably, TON1＝T1+TB1/2,TOFF1＝TON1–TB2/2，TB1And TB2For a known parameter, TB1The floating temperature T of the starting point of the instantaneous freezing chamber in the starting process of the compressorB2The temperature difference between the instant freezing chamber start and stop is T less than 0 DEG CB1,TB2≤2℃。
When the temperature sensor 4 detects that the real-time temperature T of the cooling chamber 2 is less than or equal to T1, the first process is stopped and the second process is started to be executed, so that the cooled objects stored in the cooling chamber 2 for short-term fresh keeping are kept in a fresh and tender state, and meanwhile, the phenomenon that the cooled objects are frozen due to the fact that the temperature of the cooling chamber 2 continuously drops is avoided.
Preferably, the first temperature T1 has a value ranging from-10 ℃ to 0 ℃. In the present embodiment, it is further preferable that T1 is set to-3 ℃, and according to experimental data, the temperature range can effectively prevent freezing of the fruits, vegetables and meat-chilled products.
A second step of raising the temperature of the object to be cooled to a second temperature equal to or higher than the freezing point of the object to be cooled;
specifically, the second temperature of the cooling chamber 2 is preset to T0, andthe control unit controls the refrigerating device and the temperature adjusting device to stop cold air input of the cooling chamber 2, namely, an air door and an air channel of the temperature adjusting device are closed, and a compressor in the refrigerating device is controlled to stop rotating, so that the temperature of the cooling chamber 2 slowly rises by taking T0 as a target due to heat exchange with the outside, and freezing of a cooling object due to continuous temperature reduction can be avoided. The temperature sensor 4 is adopted to detect the temperature of the cooling chamber 2 in real time, and when the temperature sensor 4 detects that the temperature of the cooling chamber 2 reaches a second starting temperature point TON2When the air door of the cooling chamber 2 is opened; when the temperature sensor 4 detects that the temperature of the cooling chamber 2 reaches the second stop temperature point TOFF2At this time, the damper of the cooling chamber 2 is closed.
Preferably, TON2＝T0+TB1/2,TOFF2＝TON2–TB2/2。
When the temperature sensor 4 detects that the real-time temperature T of the cooling chamber 2 is larger than or equal to T0, the second process is stopped and the first process is started, so that the phenomenon that the cooling object is rotten due to the fact that a large amount of bacteria breed because the temperature of the cooling chamber 2 continuously rises can be avoided.
Preferably, the second temperature T0 is in the range of 0 ℃ to 5 ℃, which is effective in preventing the coolant from being spoiled by a large amount of bacteria according to experimental data. In the present embodiment, T0 is more preferably set to 0 ℃.
Preferably, the temperature reduction speed in the first process is lower than the temperature rise speed in the second process, so that the problem that the quality of the cooled object is poor due to overlong temperature rise time can be avoided.
The temperature of the cooling chamber 2 of the present embodiment varies within one cycle as shown in fig. 7.
The control method provided by the embodiment can realize supercooling and unfreezing storage of the fruit, vegetable and meat chillings, and can also realize supercooling and unfreezing storage of chillings with other freezing points by changing the numerical values of T0 and T1.
This embodiment is through carrying out periodic accurate control to 2 intensifications of cooling chamber and cooling temperature, has avoided the freezing problem of the cooling thing that leads to of long-term low temperature in fixed single temperature control mode and the high, low temperature alternative control mode, and control is simple easily operated, realizes that the cooling thing does not freeze near freezing point, can effectively solve the fresh-keeping problem of short-term storage of cooling thing.
Example 3:
as shown in fig. 2, this embodiment provides another control method for supercooling-freezing-free storage, and compared to embodiment 2, this embodiment exchanges the execution sequence of the first process and the second process, that is, after the user selects the supercooling-freezing-free function, the second process is executed first, and then the first process is executed and the cycle control is performed, which is the same as embodiment 2, and details are not repeated here. The temperature of the cooling chamber of this embodiment varies within one cycle as shown in fig. 8.
In summary, the present invention periodically controls the temperature of the cooling chamber of the refrigerator, wherein the first process is operated according to a preset temperature, the second process is operated according to a preset target temperature, and the first process and the second process are alternately operated. The invention does not need complex control, is simple to realize, can keep the cooling object to be supercooled and not frozen near the freezing point, can effectively solve the short-term storage and fresh-keeping problem of the cooling object of fruits, vegetables and meats for consumers, and can realize the supercooled and not frozen storage.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. A supercooling non-freezing storage method, characterized in that:
alternately performing a first step and a second step by subjecting the object to be cooled to the action of an electric field while the object to be cooled is not frozen during the supercooling of the object to be cooled, wherein:
in the first step, the temperature of the object to be cooled is lowered to a first temperature lower than the freezing point of the object to be cooled;
in the second step, the temperature of the object to be cooled is raised to a second temperature equal to or higher than the freezing point of the object to be cooled;
the first step cooling rate is smaller than the second step heating rate.
2. A method for controlling storage without freezing during supercooling, characterized by:
selecting a supercooling non-freezing function to enable the cooled object to be under the action of an electric field;
cooling the cooling chamber with corresponding function to refrigerate the cooled object;
alternately performing the first and second processes on the cooling chamber when the temperature of the cooling chamber reaches a second temperature equal to or higher than the freezing point of the object to be cooled;
in the first step, the temperature of the object to be cooled is lowered to a first temperature lower than the freezing point of the object to be cooled;
in the second step, the temperature of the object to be cooled is raised to a second temperature equal to or higher than the freezing point of the object to be cooled;
the first step cooling rate is smaller than the second step heating rate.
3. The method according to any one of claims 1 to 2, wherein in the first step, the temperature lowering process is controlled based on a real-time detected temperature of the cooling chamber.
4. The method according to any one of claims 1 to 3, wherein in the second step, the temperature raising process is controlled based on the temperature of the cooling chamber detected in real time.
5. The method of any one of claims 1 to 4, wherein the first and second temperatures are preset temperatures.
6. A refrigerator is characterized in that the refrigerator is provided with:
a cooling chamber for performing supercooling non-freezing preservation on the cooled object;
the electric field generating device generates an electric field, delays the phase change of water and reduces the freezing probability of a cooling object;
a cooling device for supplying cold air into the cooling chamber;
a control unit that controls the electric field generating device and the cooling device to alternately perform a first step of reducing the temperature of the object to be cooled to a first temperature lower than a freezing point of the object to be cooled and a second step of reducing the temperature of the object to be cooled; in the second step, the temperature of the object to be cooled is raised to a second temperature equal to or higher than the freezing point of the object to be cooled;
the first step cooling rate is smaller than the second step heating rate.
7. The refrigerator according to claim 6, wherein the control unit comprises: temperature regulation apparatus, temperature sensor, display, its characterized in that: the temperature adjusting device is used for adjusting the temperature of the cooling chamber to enable the cooling chamber to operate according to a preset temperature; the temperature sensor is used for detecting the temperature of the cooling chamber in real time; the display panel is provided with a supercooling unfreezing function selecting key, and a user can select the supercooling unfreezing function according to the requirement.
8. The refrigerator according to claim 6, wherein the cooling device is provided with a damper and an air duct, and the damper and the air duct are adjusted to adjust an air volume and/or an air temperature of the cold air supplied into the cooling chamber, so that the temperature in the cooling chamber is lowered to a first temperature in the first step and raised to a second temperature in the second step.
9. The refrigerator according to any one of claims 6 to 8, wherein the first temperature is set in a range of-10 ℃ to 0 ℃.
10. The refrigerator according to any one of claims 6 to 8, wherein the second temperature is in a range of 0 ℃ to 5 ℃.
CN201910959971.1A 2019-10-10 2019-10-10 Control method for supercooling non-freezing storage and refrigerator Pending CN110906651A (en)

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CN101636625A (en) * 2007-04-17 2010-01-27 三菱电机株式会社 Refrigerator and method of refrigeration
CN103175375A (en) * 2013-03-19 2013-06-26 合肥晶弘电器有限公司 Refrigerating and freshness retaining storage method of refrigerator
CN105806006A (en) * 2015-01-20 2016-07-27 青岛海尔特种电冰柜有限公司 Refrigeration equipment with supercooling function
CN106461304A (en) * 2014-05-20 2017-02-22 三菱电机株式会社 Refrigerator
CN107631549A (en) * 2017-10-31 2018-01-26 合肥华凌股份有限公司 Food freezing determination methods, refrigerator food preservation method and fresh-keeping refrigerator in refrigerator
CN108967506A (en) * 2018-07-05 2018-12-11 中国农业大学 A method of realizing that preservation and freshness is subcooled in meat using high-voltage electrostatic field

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101375120A (en) * 2006-02-15 2009-02-25 Lg电子株式会社 Apparatus for supercooling, and method of operating the same
CN101636625A (en) * 2007-04-17 2010-01-27 三菱电机株式会社 Refrigerator and method of refrigeration
CN103175375A (en) * 2013-03-19 2013-06-26 合肥晶弘电器有限公司 Refrigerating and freshness retaining storage method of refrigerator
CN106461304A (en) * 2014-05-20 2017-02-22 三菱电机株式会社 Refrigerator
CN105806006A (en) * 2015-01-20 2016-07-27 青岛海尔特种电冰柜有限公司 Refrigeration equipment with supercooling function
CN107631549A (en) * 2017-10-31 2018-01-26 合肥华凌股份有限公司 Food freezing determination methods, refrigerator food preservation method and fresh-keeping refrigerator in refrigerator
CN108967506A (en) * 2018-07-05 2018-12-11 中国农业大学 A method of realizing that preservation and freshness is subcooled in meat using high-voltage electrostatic field

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Application publication date: 20200324