Cleaning control method and device for heat exchanger of air conditioner

Abstract

The invention discloses a cleaning control method for a heat exchanger of an air conditioner. The cleaning control method comprises the following steps that under a refrigerating mode, an indoor draught fan is controlled to run at a first preset rotating speed so as to enable the surface of the indoor heat exchanger to generate condensate water; the evaporating temperature of the indoor heat exchanger or the rotating speed of the indoor draught fan is reduced so as to enable the surface of the indoor heat exchanger to frost or freeze; and the air conditioner is controlled to switch to a heating mode, and the indoor draught fan is controlled to run at a second preset rotating speed, so that the indoor heat exchanger is subjected to defrosting. In the process that the refrigerating mode is switched to the heating mode, a compressor of the air conditioner stops first preset duration; after the indoor draught fan is controlled to run at a third preset rotating speed for preset time intervals within the first preset duration, the indoor draught fan is controlled to stop; and the third preset rotating speed is smaller than the first preset rotating speed and the second preset rotating speed. The invention also discloses a cleaning control device for the heat exchanger of the air conditioner. According to the cleaning control method and device for the heat exchanger of the air conditioner, automatic cleaning for the indoor heat exchanger is achieved, so that cleaning of the air conditioner is very convenient.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for controlling cleaning of a heat exchanger of an air conditioner. Background technique [0002] During the use of the air conditioner, the indoor heat exchanger is in contact with the air in real time for heat exchange. Due to the dust in the air, it has been deposited on the surface of the indoor heat exchanger for a long time, and the continuous accumulation will lead to a decrease in the heat exchange efficiency of the air conditioner, which will affect the performance of the air conditioner and reduce the heat exchange efficiency of the indoor heat exchanger. If it is cleaned, it is easy to breed bacteria in it, which will cause the air blown out from the air outlet of the air conditioner to have a peculiar smell. Therefore, it is necessary to clean the surface of the indoor heat exchanger to avoid the decrease of heat exchange efficiency of the...

AI Technical Summary

Problems solved by technology

Due to the dust in the air, it has been deposited on the surface of the indoor heat exchanger for a long time, and the continuous accumulation will lead to a decrease in the heat exchange efficiency of the air conditioner, which will affect the performance of the air conditioner and reduce the heat exchange efficiency of the indoor heat exchanger. If it is cleaned, it is easy to breed bacteria in it, which will cause the air blown out from the air outlet of the air conditioner to have a peculiar smell. Therefore, it is necessary to clean the surface of the indoor heat exchanger to avoid the decrease of the heat exchange efficiency of the heat exchanger and affect the performance of the air conditioner.

However, because the installation position of the air conditioner is generally relatively high and it is inconvenient to disassemble and assemble, it is more difficult for the user to clean it manually.

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