Dust removal method and device for household air conditioner outdoor unit

Abstract

The invention belongs to the technical field of air conditioner dust removal control, and provides a dust removal method and device for a household air conditioner outdoor unit to solve the problems that in the prior art, high-altitude operation is needed for dust removal of the household air conditioner outdoor unit, and the danger degree is large. The method includes the following steps that whether the air conditioner outdoor unit meets the shutdown condition or not is judged; whether an air conditioner meets the unit operation condition or not is judged, a first stage is executed, the winddirection of an outer fan is controlled according to a first rule in the period that the air conditioner gets into an outdoor unit condenser dust removal mode, the wind speed of the outer fan is controlled according to second filtering, a second stage is executed after the first fixed condition is met, if the operation mode of the air conditioner before shutdown is a refrigeration mode, the outdoor unit pressurizes condensate water through a water pump working according to a third rule, the surface of a condenser is flushed through a spraying device, and if the operation mode of the air conditioner before shutdown is a heating mode, frosting treatment is conducted on the condenser firstly, and defrosting is conducted after the frosting critical value is reached; and dust on the surface ofthe condenser is removed in various modes.

Description

technical field [0001] The invention belongs to the technical field of dust removal control for air conditioners, and in particular relates to a dust removal method and device for an outdoor unit of a household air conditioner. Background technique [0002] In the outdoor unit of household air conditioners, when the air conditioner is used for a long time or in harsh conditions such as dusty environment, the fins of the heat exchanger of the outdoor unit are easy to accumulate dust and cover impurities; this will reduce the heat transfer efficiency of the heat exchanger, At the same time, the energy consumption of the air conditioner is increased. Therefore, it is necessary to periodically remove dust from the outdoor unit of the air conditioner. The outdoor unit of household air conditioners generally does not have a filter screen, and the heat exchanger is prone to dust accumulation. After long-term accumulation, the wind resistance will increase, the performance will decr...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method and device for removing dust from an outdoor unit of a household air conditioner, which solves the problem in the prior art that the outdoor unit of a household air conditioner needs to be operated at high altitudes and has a high degree of danger

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