Overcooling freezing method, refrigerator and refrigerator control method

Abstract

The invention provides an overcooling freezing method, a refrigerator and a refrigerator control method. Direct-cooling-type evaporators are adopted, and the direct-cooling-type evaporators at different positions are controlled to work in different overcooling freezing processes. A top evaporator is used for reducing temperature, so that the temperature reducing conditions of food in a freezing room are as close as possible to natural convection, the situation that the temperature reducing rate is too high due to the fact that the food is in contact thermal conductance with a refrigerated evaporator or the food is too close to the refrigerated evaporator, and keeping the stability of the food overcooling state is facilitated. A bottom evaporator or both the top evaporator and the bottom evaporator are used for reducing temperature at a fast freezing stage of the food to ensure the food to be quickly frozen, ice crystals are smaller and more rounded, the frozen food can be cut with a knife and cooked immediately, the waste of time and loss of food nutritional value caused by the thawing process are avoided.

Description

technical field [0001] The invention relates to the technical field of freezing and fresh keeping, in particular to a supercooling and freezing method, a refrigerator and a refrigerator control method. Background technique [0002] In the refrigerator, frozen food is generally stored at -18°C or below. Frozen food such as pork and beef have the problem of thawing too long. If users are eager to cook, they usually use direct heating to thaw. Although this can be thawed in a short period of time, the juice loss rate of the meat is very high, and the nutritional value of the food is greatly lost. At present, there are refrigerators with instant freezing technology on the market, which create a supercooled state of food and freeze rapidly, but the control is often complicated and the cost is expensive, resulting in a reduction in the practicability of the refrigerator. Contents of the invention [0003] In view of this, the present invention provides a radiation heat exchange...

AI Technical Summary

Problems solved by technology

[0002] In the refrigerator, frozen food is generally stored at -18°C or below. Frozen food such as pork and beef have the problem of thawing too long. If users are eager to cook, they usually use direct heating to thaw. Although it can be thawed in a short time in this way, the loss rate of meat juice is very high, and the nutritional value of food is greatly lost.

At present, there are refrigerators with instant freezing technology on the market, which create a supercooled state of food and freeze them rapidly, but the control is often complicated and expensive, which reduces the practicability of the refrigerator

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