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Supercooling non-freezing storage control method and refrigerator

A storage method and supercooling technology, which can be used in cooling fluid circulation devices, household refrigeration devices, lighting and heating equipment, etc.

Inactive Publication Date: 2020-03-24
HEFEI KINGHOME ELECTRICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention implements periodical cooling and heating control on the temperature of the storage environment of the cooling object. In the cooling stage, multiple cooling targets are preset for cooling in stages. In the heating stage, a single heating target is preset for continuous heating. The invention can effectively solve the problem that after the cooling object is frozen, it takes a long time to unfreeze and the quality of the cooling object decreases

Method used

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  • Supercooling non-freezing storage control method and refrigerator
  • Supercooling non-freezing storage control method and refrigerator
  • Supercooling non-freezing storage control method and refrigerator

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Such as Figure 5 As shown, the present embodiment provides a supercooled non-freezing storage refrigerator, including:

[0057] Cooling chamber 2 is used to implement overcooling and non-freezing preservation of the cooling objects placed therein.

[0058] The refrigerating system 5 is used to produce cold air to refrigerate the cooling objects in the refrigerator, and specifically includes: a compressor 51, a condenser 52, an anti-condensation pipe 53, a drying filter 54, a freezing evaporator 55, and an air return pipe assembly 56. Example of a refrigeration system 5 such as Figure 4 shown.

[0059] The control unit includes: a controller, a temperature adjustment device, a temperature sensor 4, a timer, and a heating device 6, and is characterized in that: the controller is used to control other components of the control unit and the refrigeration system 5; the temperature adjustment device is used to adjust The cooling chamber 2 operates according to the preset...

Embodiment 2

[0067] Attached below figure 1 The content of the specific embodiment in the present invention is described in detail: a kind of supercooling non-freezing storage control method, comprises the following steps:

[0068] S1: the cooling process in stages, so that the cooling chamber is cooled step by step to the second temperature T2 lower than the freezing point T0 of the object to be cooled according to the preset cooling target and preset cooling time;

[0069] S2: In the continuous heating process, turn on the heating device 6 to continuously raise the temperature of the cooling chamber to the first temperature T1 equal to or higher than the freezing point T0 of the object to be cooled, and turn off the heating device 6 after the heating process is completed.

[0070] Among them, T1>T2, the temperature range of T1 is 0℃~10℃, and the temperature range of T2 is -10℃~0℃;

[0071] The temperature difference between T1 and T2 ranges from 0°C to 20°C.

[0072] Preferably, if onl...

Embodiment 3

[0097] Such as figure 2 As shown, this embodiment provides another control method for supercooling without freezing storage. After the user puts the cooling object into the cooling chamber 2 of the refrigerator, the infrared temperature sensor in the cooling chamber 2 detects the surface temperature Ts of the cooling object. When the surface temperature Ts of the object is equal to or lower than the second temperature T2, the refrigerator control unit controls the cooling chamber 2 to heat up first. Compared with Embodiment 2, in this embodiment, the temperature rise program is executed first, and then the temperature drop program is executed, and then the temperature rise and temperature drop are performed. The control loop, the rest are the same as in Embodiment 2, and will not be repeated here. The temperature variation of present embodiment cooling room is as follows Figure 8 As shown, the temperature change curve of the cooling object in the cooling chamber 2 is as fol...

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Abstract

The invention relates to a supercooling non-freezing storage control method and a refrigerator. Periodic heating and cooling control is carried out on the temperature of a cooling chamber, wherein staged step-by-step cooling is adopted in the cooling stage to reduce the temperature below a freezing point, the cooled object is enabled to stably enter a supercooling state, the cooled object is prevented from generating needle-like ice crystals due to freezing to damage the cell structure, and the flavor of the cooled object is further prevented from being damaged during thawing; and a heating device is turned on in the heating stage, the storage environment temperature of the cooled object is continuously increased to be equal to or higher than the freezing point temperature by adopting a continuous heating mode, and the heating device is turned off after the heating is completed. Through continuous circulation of heating and cooling, the cooled object is not frozen near the freezing point, and the fresh-keeping period of the cooled object is prolonged.

Description

technical field [0001] The invention relates to a refrigerator control method and a refrigerator, in particular to a control method for supercooling without freezing storage and a refrigerator. Background technique [0002] With the rapid development of air-cooled refrigerators and the improvement of consumers' requirements for the freshness of cooling objects, the multi-function of refrigerators has developed rapidly, and at the same time, the requirements for controlling the storage temperature of cooling objects in refrigerators have become more and more stringent. [0003] In the prior art, the cooling object preservation control methods for short-term storage and preservation of fruits and vegetables, meat, etc. mainly include: fixed single temperature control mode and high temperature, low temperature alternate control mode, fixed single low temperature control and high temperature, low temperature alternate control mode for a long time The low temperature control will...

Claims

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Application Information

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IPC IPC(8): F25D29/00
CPCF25D29/00F25D2400/36F25D2600/02F25D2600/06
Inventor 钱梅双辛海亚梁起
Owner HEFEI KINGHOME ELECTRICAL CO LTD
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