Defrosting control method and device for refrigerator

Abstract

The invention discloses a defrosting control method and device for a refrigerator. The method includes the following steps that the accumulative operating time of a compressor and the opening frequency of a refrigerator door are recorded, every time the door is opened, the environment temperature and the environment humidity are detected, and the door opening hold time is recorded; whether a defrosting starting condition is met or not is judged according to the accumulative operating time of the compressor and the opening frequency of the refrigerator door; if the defrosting starting condition is met, after defrosting is started, the defrosting exit temperature is acquired according to the environment temperature, the environment humidity and the door opening hold time detected every time the door is opened; when the temperature of an evaporator of the refrigerator reaches the defrosting exit temperature, the refrigerator is controlled to complete defrosting, hence, the defrosting time can be controlled according to the actual environment temperature and humidity, the purpose of thorough defrosting when a large amount of frost exists and the purpose of power consumption reducing when a small amount of frost exists are achieved, defrosting is more accurate, and better electricity saving and fresh-keeping effects can be brought to users.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a method for controlling defrosting of a refrigerator and a device for controlling defrosting of the refrigerator. Background technique [0002] Frost will form after the refrigerator has been used for a period of time. In related technologies, defrosting is usually performed by heating wires, and the heating time of the heating wires is obtained according to the accumulated running time of the compressor and the number of times the refrigerator door is opened. However, its disadvantage is that the actual frosting degree in the refrigerator is not considered, and the defrosting accuracy is low, which may lead to excessive heating when there is little frosting, which will increase the power consumption of the refrigerator, the temperature in the refrigerator will rise rapidly, and the freshness preservation effect will be poor. ; It may also cause more frosting bu...

AI Technical Summary

Problems solved by technology

However, its disadvantage is that the actual frosting degree in the refrigerator is not considered, and the defrosting accuracy is low, which may lead to excessive heating when there is little frosting, which will increase the power consumption of the refrigerator, the temperature in the refrigerator will rise rapidly, and the freshness preservation effect will be poor. ; It may also lead to more frosting but insufficient defrosting time, resulting in insufficient defrosting, reduced heat transfer efficiency of the evaporator, and poor cooling effect

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