Self-cleaning control method for air conditioner

Abstract

The invention belongs to the technical field of air conditioners and provides a self-cleaning control method for an air conditioner. The problems that according to existing self-cleaning control modesfor air conditioners, frosting speed is low generally, thus the whole self-cleaning time is long, and normal experience of users is influenced can be solved. The air conditioner comprises a refrigerant circulation system and a solution circulation system, and the solution circulation system is composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank.The self-cleaning control method comprises the steps that under the heating working condition, the open degree of an electronic expansion valve is reduced, the rotation speed of an outdoor fan of theair conditioner is lowered, the voltage of the indoor solution film and the voltage of the outdoor solution film are increased, and thus an outdoor heat exchanger achieves frosting; after frosting ofthe outdoor heat exchanger, the electronic expansion valve is closed first, and an electromagnetic valve on the low pressure side of a compressor is closed after preset time passes; and the outdoor heat exchanger is heated, and thus defrosting cleaning is achieved for the outdoor heat exchanger. Through the self-cleaning control method, self-cleaning efficiency of the outdoor heat exchanger can beimproved, and user experience is promoted.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and specifically provides a self-cleaning control method for an air conditioner. Background technique [0002] The air conditioner is a device that can cool / heat the room. As time goes by, the dust accumulation on the indoor and outdoor units of the air conditioner will gradually increase. , which is exposed to the outdoors for a long time, making the dust and bacteria from the outside easily adhere to the outdoor unit. Such bacteria and dust will seriously affect the heat exchange efficiency of the air conditioner, increase the energy consumption of the air conditioner, and reduce the service life of the air conditioner. , so it is necessary to clean the air conditioner in time. [0003] In the prior art, the cleaning methods of the air conditioner include manual cleaning and self-cleaning of the air conditioner. It is time-consuming and labor-intensive to use manual cleaning. It is ne...

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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the self-cleaning control mode of the existing air conditioner generally has a slow frosting speed, which leads to a long time for the entire self-cleaning and affects the normal experience of the user, the present invention provides A self-cleaning control method for an air conditioner is provided, the air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, an electronic expansion valve and a four-way valve, the indoor heat exchanger, an electronic expansion valve, an outdoor heat exchanger The air conditioner also includes an indoor solution membrane, an outdoor solution membrane, a liquid pump and a liquid storage tank. The indoor solution membrane is set on the indoor heat exchanger, and the outdoor solution membrane is set On the outdoor heat exchanger, the indoor solution membrane, the liquid storage tank, the outdoor solution membrane and the liquid pump constitute a closed-loop solution circulation system. The self-cleaning control method includes: under heating conditions, reducing the opening of the electronic expansion valve, Reduce the speed of the outdoor fan of the air conditioner and increase the voltage of the indoor solution membrane and the voltage of the outdoor solution membrane, so that the outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, first close the electronic expansion valve, After the set time, close the solenoid valve on the low-pressure side of the compressor; heat the outdoor heat exchanger, so that the outdoor heat exchanger can be defrosted and cleaned

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