Refrigerator defrosting control method and refrigerator

Abstract

The invention discloses a refrigerator defrosting control method and a refrigerator adopting the defrosting control method. According to the defrosting control method, when the refrigerator enters a defrosting mode, the difference value between condensation pressure and evaporation pressure is judged, and when the difference value is larger than or equal to a preset pressure value, a hot air defrosting mode is adopted; and when the difference value is smaller than the preset pressure value, an electric heating defrosting mode is adopted. The problems that a single electric heater defrosting manner is adopted by a traditional air cooling refrigerator, consequently, the defrosting efficiency is low, and the temperature of a freezing chamber is increased again to be high during defrosting aresolved; and meanwhile, the problems that a single hot air defrosting manner is adopted, consequently, when the environment temperature is low, a four-way valve cannot be started, and consequently hotair defrosting cannot run normally are solved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a defrosting control method for a refrigerator and a refrigerator using the defrosting control method. Background technique [0002] The current air-cooled refrigerators all have an automatic defrosting function, and the automatic defrosting method generally uses an electric heater to defrost. The electric heating tube is arranged under the evaporator. When the refrigerator enters the defrosting operation, the compressor stops, and the evaporator is defrosted by heating the air in the return air channel to form natural convection and the heat radiation of the electric heating tube. This defrosting method has many disadvantages such as low efficiency, long defrosting time, high defrosting power consumption, and high freezing chamber temperature rise. [0003] Chinese patent CN2716771Y discloses a kind of refrigerator that uses four-way valve reversing and adopts hot gas to ...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a refrigerator defrosting control method and a refrigerator using the defrosting control method to solve the problems of low defrosting efficiency, long defrosting time, high defrosting power consumption, The problem of high temperature rise in the freezer during defrosting; the problem that the four-way valve cannot be reversed when the ambient temperature is low when using hot gas defrosting

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