Food freezing device, refrigerator and food freezing control method

A technology of a freezing device and a control method, which is applied in household refrigerators, household refrigeration devices, cooling fluid circulation devices, etc., and can solve problems such as slow freezing speed of food, increase the freezing speed, ensure the uniformity of freezing, and improve the freezing speed. The effect of freezing speed
CN110645754APending Publication Date: 2020-01-03GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2020-01-03

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Abstract

The invention relates to a food freezing device, a refrigerator and a food freezing control method. The food freezing device comprises a freezing box, a pressurization mechanism, a refrigeration mechanism and a depressurization mechanism. A freezing chamber is formed in the freezing box. The pressurization mechanism is used for pressurizing the freezing chamber to the pressure higher than or equalto first preset air pressure. The refrigeration mechanism is used for lowering the temperature of the freezing chamber to be lower than or equal to the first preset temperature. The depressurizationmechanism is used for lowering the pressure of the freezing chamber to be lower than or equal to the second preset air pressure. The first preset air pressure is higher than the standard atmospheric pressure. The second preset air pressure is lower than the first preset air pressure and is higher than or equal to the standard atmospheric pressure. The first preset temperature is lower than or equal to the freezing point of water under the standard atmospheric pressure. Simultaneous freezing of the surface and interior of food can be ensured, freezing uniformity of the food is ensured, the freezing speed of the food can be increased significantly, and thus ice crystals formed after food freezing are small in size, low in hardness and mellow and full in shape.
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Description

technical field

[0001] The invention relates to the technical field of freezing, in particular to a food freezing device, a refrigerator and a food freezing control method. Background technique

[0002] With the development of the economy and the progress of the society, people are more and more pursuing the quality of life. Refrigeration equipment such as refrigerators are widely used in people's daily life and become an indispensable tool in people's life. Refrigerators generally have a freezing compartment for freezing food so that the food can be stored for a long time.

[0003] According to the principle of freezing, the faster the freezing speed of the liquid during the freezing process, the smaller the ice crystals formed, the lower the hardness and the rounder the shape, and the ice crystals with smaller volume and lower hardness can achieve thawing without thawing. Processing can be realized under certain conditions, and the rounder ice crystals will cause less dam...

Claims

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