Air-cooling refrigerator and defrosting control method for evaporator of air-cooling refrigerator

Abstract

The invention provides an air-cooling refrigerator and a defrosting control method for an evaporator of the air-cooling refrigerator. The defrosting control method for the evaporator of the air-cooling refrigerator comprises the steps that it is determined that the air-cooling refrigerator enters the defrosting process; when the evaporator reaches the preset defrosting stopping condition, defrosting is stopped, the situation that steam formed through defrosting is condensed into water is waited, and the water is discharged out of an evaporator chamber of the air-cooling refrigerator; in the waiting process, humidity in the evaporator chamber is detected, and whether the humidity is lower than the preset humidity threshold value or not is judged; and if the humidity is lower than the preset humidity threshold value, the waiting process is ended, and the air-cooling refrigerator is allowed to enter the refrigerating process. According to the scheme, the end point of the waiting process after defrosting is set according to the humidity in the evaporator chamber, the situation that a compressor shuts down for a too long time, and consequently refrigeration is affected is avoided, secondary frosting caused by insufficient moisture exhausting in the evaporator is avoided as well, and therefore the best defrosting effect is achieved.

Description

technical field [0001] The invention relates to the field of refrigerators, in particular to an air-cooled refrigerator and a defrosting control method for an evaporator thereof. Background technique [0002] Air-cooled refrigerators need to defrost the evaporator of the refrigerator after the compressor starts to cool for a period of time, so as to prevent the frost layer on the surface of the evaporator from being too thick and affecting the refrigeration effect of the refrigerator. [0003] Most of the defrosting methods of the current air-cooled refrigerators are to install a defrosting heating wire in the evaporator chamber, and by heating the evaporator, the frost is melted to realize the defrosting of the evaporator. With the above method, after defrosting, a large amount of water droplets will remain on the surface of the evaporator and a large amount of water vapor will appear in the evaporator chamber due to the melting of the frost. If the refrigeration is turned...

AI Technical Summary

Problems solved by technology

If the refrigeration is turned on immediately at this time, when the refrigerant passes through the evaporator, the temperature will drop rapidly, and the remaining water droplets and water vapor will condense again to form frost, which will affect the defrosting effect

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