Method for reducing defrosting rate of air-cooled refrigerator

Abstract

The invention relates to a method for reducing the defrosting rate of an air-cooled refrigerator. The method comprises the step of carrying out heat exchange cooling on return air in a return air pipeline of a refrigerating chamber so as to realize cooling and dehumidification of the return air before the return air enters an evaporator. The return air in the return air pipeline of the refrigerating chamber is subjected to heat exchange cooling, so that the temperature in the return air pipeline is below the dew point temperature, the return air is cooled before entering the evaporator, air with high humidity recycled from the refrigerating chamber is condensed in the return air pipeline, the water vapor content in the return air is reduced, the amount of the water vapor in contact with the evaporator in unit time is reduced, the frosting rate of the evaporator is reduced, the defrosting cycle time is prolonged, the defrosting frequency is reduced, the defrosting energy consumption is reduced, and the use cost of a user is saved.

Description

technical field [0001] The present disclosure relates to a method for reducing the defrosting rate of an air-cooled refrigerator. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Current refrigerators are generally divided into air-cooled refrigerators and direct-cooled refrigerators according to different cooling methods. Compared with direct-cooling refrigerators, air-cooling refrigerators have obvious advantages, such as small temperature fluctuations, higher temperature uniformity, and no need for manual defrosting. Therefore, the market share of air-cooling refrigerators is increasing. [0004] At present, the air-cooled refrigerator has an automatic defrosting function, mainly through the heating tube or heating wire near the evaporator to increase the temperature, so that the frost in the evaporator chamber is melted into water and dischar...

AI Technical Summary

Problems solved by technology

And through the sensor and the control board, the heater is automatically turned on to realize automatic defrosting after a fixed defrosting cycle or when the temperature of the compartment is detected to reach a certain level, and this kind of heating through the heating tube through the strong current increases the energy consumption of the refrigerator, At present, more energy-saving methods are mainly to control the start and stop of the heater through more accurate calculation of the defrosting cycle algorithm or induction method to reduce unnecessary defrosting process, but it will still generate additional energy consumption.

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