Defrosting control method and refrigerator

Abstract

The invention provides a defrosting control method. The defrosting control method comprises the following steps that S1, it is determined that a set defrosting triggering condition is met; S2, a defrosting heater works, whether the defrosting quit temperature is excessive or not is judged, if yes, the step S3 is executed, and if not, the defrosting exit condition is kept unchanged; and S3, the defrosting quit condition is adjusted, and defrosting is carried out according to the adjusted defrosting quit condition during next defrosting. According to the defrosting control method, the defrosting quit condition can be dynamically adjusted, so that the defrosting quit temperature threshold value is adjusted under the condition that the defrosting temperature is excessive, defrosting is carried out under the more reasonable defrosting quit condition in next defrosting, and the condition that the defrosting temperature is residual is improved. According to the defrosting control method, the defrosting effect is ensured, the power consumption increase caused by the excessive defrosting temperature is avoided, and the defrosting duration is effectively shortened.

Description

technical field [0001] The invention belongs to the technical field of defrosting treatment, and in particular relates to a defrosting control method and a refrigerator. Background technique [0002] At present, the frosting of air-cooled refrigerators is concentrated on the evaporator, and after a period of operation, the defrosting heater must be started to melt the frost on the evaporator. The control conditions for defrosting exit of air-cooled refrigerators are usually set as follows: when the temperature of the temperature sensor on the evaporator reaches the set defrosting exit temperature, it is considered that the ice on the evaporator has completely melted, and the defrosting control is exited. Normally, the above defrosting exit temperature is verified to be the temperature value that can ensure clean defrosting even when the evaporator is severely frozen; the above defrosting exit temperature will lead to excessive defrosting and temperature rise in the box If t...

AI Technical Summary

Problems solved by technology

Normally, the above defrosting exit temperature is verified to be the temperature value that can ensure clean defrosting even when the evaporator is severely frozen; the above defrosting exit temperature will lead to excessive defrosting and temperature rise in the box If it is too high, and the defrost heating wire works, it will lead to an increase in power consumption

Images