Super-cooling control method of refrigeration device

Abstract

The invention provides a super-cooling control method of a refrigeration device. The refrigeration device comprises a freezing chamber used for containing frozen foods, a temperature detection mechanism used for detecting temperature of the frozen foods, an air feeder used for blowing freezing air down in the freezing chamber, and a freezing circulation loop, wherein the freezing circulation loop comprises a compressor, a radiator, an expansion valve and a cooler which are connected together. According to the refrigeration device, the foods in the freezing chamber can be efficiently frozen by super cooling; the cooling speed is kept constant as far as possible during super cooling; the temperature of the frozen foods can be measured every specified time; the operation parameters of the refrigeration device are adjusted on the basis of the measurement results; the control is updated for n1 times repeatedly under the condition that the frozen foods are thick foods; the control is updated for n2 times repeatedly under the frozen foods are thin foods; therefore, the super cooling caused by loss of thin blood can also be suppressed even if the frozen foods are thick foods.

Description

technical field [0001] The present invention relates to a refrigerating device for cooling and preserving food etc. in a storage room, in particular to a supercooling control method for a refrigerating device having the function of supercooling and freezing the food etc. in a freezing room. Background technique [0002] So far, the freezing method of freezing food through a supercooled state during freezing in the freezer has been used. When this method is used, because the ice crystals are small, it is not easy to damage the cells of the food, so the effect of reducing blood loss can be obtained. [0003] A refrigeration device having the above-mentioned supercooling function is described in FIG. 10 and its description in the following Japanese Patent Application Laid-Open No. 2008-267646. Specifically, when the supercooling button is pressed, accumulation of the supercooling time is started (step 1). Here, the time from normal temperature to supercooling is set in advance...

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Problems solved by technology

[0005] However, in the invention described in the above-mentioned patent documents, when the temperature setting of the freezer compartment during supercooling is not low enough (for example, about minus 15 degrees), when supercooling is performed at this temperature, there will be blood loss. frequent occurrence

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