A control method and device of an air conditioner, the air conditioner and a storage medium

By acquiring various parameters of the air conditioner and combining them with preset judgment logic to optimize defrosting control, the problem of air conditioners not defrosting or taking too long to defrost when heating in low-temperature and high-humidity areas has been solved, thus improving heating comfort and efficiency.

CN116772366BActive Publication Date: 2025-11-28GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202310681286.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-09
Publication Date
2025-11-28
Estimated Expiration
2043-06-09

AI Technical Summary

Technical Problem

When air conditioners are used for heating in low-temperature and high-humidity areas, prolonged low-frequency operation can lead to insufficient defrosting or excessively long defrosting times, affecting heating power and comfort.

Method used

By acquiring parameters such as the outdoor ambient temperature, compressor operating frequency, time, outdoor coil temperature, and indoor coil temperature of the air conditioner, and combining them with preset judgment logic, it is determined whether to enter defrost mode, thereby optimizing defrost control.

Benefits of technology

It enables timely defrosting during low-frequency operation of the air conditioner, improving indoor comfort and heating efficiency, and avoiding problems such as failure to defrost or excessively long defrosting time.

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Abstract

The application discloses a control method and device of an air conditioner, the air conditioner and a storage medium, and relates to the technical field of air conditioners. The method comprises the following steps: determining a current outdoor temperature difference between a current outdoor environment temperature and a current outdoor coil temperature when the air conditioner is in a heating operation mode; if the current outdoor environment temperature is less than or equal to a first preset temperature, a current operating frequency of a compressor is less than or equal to a first preset frequency, a current operating time of the compressor is greater than or equal to a first preset time, the current outdoor coil temperature is less than a second preset temperature, and the current outdoor temperature difference is greater than a third preset temperature, then combining a current indoor environment temperature, a current indoor coil temperature, a set temperature and a current air outlet temperature, a preset judgment logic is executed to determine whether it is necessary to enter a preset defrosting mode. According to the scheme, whether to enter defrosting is determined by combining the indoor coil temperature change and the indoor ambient temperature change during the low-frequency operation of the air conditioner in the heating mode, frost is removed in time when there is frost, and the comfort of the indoor environment is improved.
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Citation Information

Patent Citations

  • Air conditioner defrosting control method and device

    CN106766437A

  • Air conditioner defrosting control method and device, air conditioner and storage medium

    CN115950053A