Meat supercooling preservation control method, controller and refrigerator

Abstract

The invention provides a meat supercooling preservation control method, a controller and a refrigerator. The meat supercooling preservation control method comprises the steps of: (S1) obtaining present temperatures of meat food positioned in refrigerator chambers in real time; (S2) judging if the present temperatures of the meat food are higher than or equal to a first temperature threshold t0; and if so, carrying out the step (S3); (S3) controlling the chambers to perform the cooling operation; (S4) judging if the meat food is cooled to a phase change point temperature t1 in the cooling process; and if so, carrying out the step (S5), wherein the phase change point temperature t1 is the temperature of a critical point of the meat food generating the phase change; (S5) starting to time whenthe temperature is lowered to the phase change point temperature t1; and carrying out the step (S6) after the timing reaches a first preset time period; and (S6) controlling the chambers to perform low-temperature stable operation according to a third target temperature T3, wherein the third target temperature T3 is the frozen point temperature of the meat food. The meat supercooling preservationcontrol method can prolong the preservation period as far as possible under the condition of not freezing meat.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to a control method for supercooling and keeping meat fresh, a controller and a refrigerator. Background technique [0002] With the popularity of refrigerators, people are becoming more and more accustomed to using refrigerators to keep food fresh, so as to prolong the fresh-keeping storage period of food, especially for meat products. [0003] The current control methods for meat preservation mainly include the following: [0004] (1) Put it directly into the freezer, and store frozen meat at -18°C. Generally, it can be stored for several months, but the most serious problem is that it is inconvenient to thaw, and the quality and taste of the meat will decline significantly after thawing; [0005] (2) Soft freezing storage. During this time, the room temperature is generally between -5°C and -9°C. Although the storage time of meat under this condition is longer, it will still f...

AI Technical Summary

Problems solved by technology

[0004] (1) Put it directly into the freezer, and store frozen meat at -18°C. Generally, it can be stored for several months, but the most serious problem is that it is inconvenient to thaw, and the quality and taste of the meat will decline significantly after thawing;

[0005] (2) Soft freezing storage. During this time, the room temperature is generally between -5°C and -9°C. Although the storage time of meat under this condition is longer, it will still freeze and face the problem of difficult thawing;

[0006] (3) There is also a zero-degree fresh-keeping technology on the market. The temperature is controlled at about 1°C. Although it can avoid the problem of meat freezing, the fresh-keeping cycle is too short to guarantee freshness for a week

[0007] It can be seen that the current control methods for meat preservation cannot better meet the actual needs of users.

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