Air cooling refrigerator evaporator defrosting system and control method

Abstract

The invention discloses an air cooling refrigerator evaporator defrosting system and a control method and relates to the technical field of refrigerator evaporator defrosting. The air cooling refrigerator evaporator defrosting system comprises defrosting heaters electrically connected with a defrosting controller; the plurality of defrosting heaters are arranged; the plurality of defrosting heaters are all installed on the surface of an air cooling refrigerator evaporator, and are arranged in parallel connection; each defrosting heater further comprises a temperature detecting module; the temperature detecting modules are used for detecting the surface temperatures of the portions, at the corresponding positions of the defrosting heaters, of the air cooling refrigerator evaporator, and detected temperature values are transmitted to the defrosting controller; a temperature threshold is preset in the defrosting controller; and the defrosting controller compares the received surface temperature values of the portions, corresponding to the defrosting heaters, of the air cooling refrigerator evaporator with the temperature threshold. According to the air cooling refrigerator evaporatordefrosting system and the control method, each defrosting heater is independently controlled, after defrosting of a certain position of the air cooling refrigerator evaporator ends, the correspondingdefrosting heater is closed, the defrosting heaters at the remaining positions continue to perform heating, and defrosting as required is really achieved.

Description

technical field [0001] The invention belongs to the technical field of defrosting refrigerator evaporators, in particular to an air-cooled refrigerator evaporator defrosting system and a control method. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's living standards, more and more families have purchased refrigerators to keep the food that needs to be stored fresh. Because air-cooled refrigerators have the advantages of good fresh-keeping effect, fast cooling and environmental protection, the market share of air-cooled refrigerators is also increasing. 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] Existing evaporator defrosting usually adopts a heater ...

AI Technical Summary

Problems solved by technology

In addition, if the heater is placed under the evaporator, it takes a long time to ass

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