Self-cleaning control method for air conditioner

Abstract

The invention relates to the technical field of air conditioners, particularly provides a self-cleaning control method for an air conditioner, and aims to solve the problem that heat exchangers needing to be self-cleaned of an existing air conditioner cannot be accurately judged. In order to achieve the purpose, the air conditioner comprises an outdoor heat exchanger and an indoor heat exchanger. The self-cleaning control method comprises the following steps that the first heat exchange pressure of the outdoor heat exchanger is obtained; the second heat exchange pressure of the indoor heat exchanger is obtained; whether a first difference value between the first heat exchange pressure and a first preset pressure threshold value is greater than a first preset difference threshold value or not is judged; whether a second difference value between the second heat exchange pressure and a second preset pressure threshold value is greater than a second preset difference threshold value or not is judged; and the air conditioner is selectively enabled to enter a self-cleaning mode according to the judgment results whether the first difference value is greater than the first preset difference value threshold value and whether the second difference value is greater than the second preset difference value threshold value, so that whether the indoor heat exchanger and / or the outdoor heat exchanger needs to be cleaned or not can be accurately judged.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and specifically provides a self-cleaning control method for an air conditioner. Background technique [0002] As a device that can adjust the indoor ambient temperature, the air conditioner works on the principle that the indoor ambient temperature is reduced or increased by the refrigerant passing through the circulation pipeline through high-pressure / low-pressure / gas / liquid state transitions, that is, from From the perspective of the indoor heat exchanger, the air conditioner is in cooling or heating mode. During the operation of the air conditioner, various dust and impurities in the air will adhere to the indoor heat exchanger and outdoor heat exchanger, resulting in serious dirt and blockage on the surface of the indoor heat exchanger and outdoor heat exchanger, which not only reduces the heat exchange effect , affect user experience, and also increase power consumption due to inc...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, in order to solve the problem that the existing air conditioner cannot accurately judge the heat exchanger that needs self-cleaning, the present invention provides a self-cleaning control method for the air conditioner, the air conditioner includes The indoor heat exchanger and the outdoor heat exchanger, the self-cleaning control method includes the following steps: obtaining the first heat exchange pressure of the outdoor heat exchanger; obtaining the second heat exchange pressure of the indoor heat exchanger; judging the difference between the first heat exchange pressure and the second heat exchange pressure; Whether the first difference of a preset pressure threshold is greater than the first preset difference threshold; judging whether the second difference between the second heat exchange pressure and the second preset pressure threshold is greater than the second preset difference threshold; according to the first A judgment result of whether the difference is greater than the first preset difference threshold and whether the second difference is greater than the second preset difference threshold selectively enables the air conditioner to enter the self-cleaning mode

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