Air conditioner control method and device and air conditioner with air conditioner control device

Abstract

The invention discloses an air conditioner control method and device and an air conditioner with the air conditioner control device. The method comprises the steps that a compressor in an air conditioner is recognized to be operated at the lowest operation frequency; the target operation frequency of the compressor at the current moment is obtained; the outdoor sunshine amount of the air conditioner at the current moment is obtained; according to the target operation frequency and the outdoor sunshine amount, whether the opening of an electronic expansion valve in the air conditioner needs tobe controlled to be increased is judged; and if it is judged that the opening the of the electronic expansion valve needs to be controlled to be increased, the opening of the electronic expansion valve in the air conditioner is controlled to be target opening. Accordingly, frequent start and stop of the compressor of the split air conditioner is avoided, energy is saved, reliability of the compressor is improved, indoor heat comfort is improved, indoor cold and heat load changes are predicted according to the outdoor sunshine amount, and the technical problem that the output refrigerating capacity of the air conditioner operated at the lowest frequency is larger than the indoor practically-required refrigerating capacity in the prior art is solved.

Description

Technical field [0001] The present invention relates to the field of refrigeration technology, in particular to an air conditioner control method, device and an air conditioner having the same. Background technique [0002] At present, the conventional inverter air conditioner is controlled by the high frequency operation of the compressor after it is turned on, and the indoor temperature drops rapidly. When the indoor temperature drops to a certain value lower than the set temperature of the remote control (ie: the temperature shutdown compensation value, generally 1 ℃~5℃, according to the setting of each manufacturer, the air conditioner will reach temperature and stop. After the shutdown, the indoor temperature will no longer drop due to the influence of the air conditioner. As time increases, when the indoor temperature rises to the condition of automatic startup, the air conditioner will restart. As the difference between the indoor temperature and the set temperature of th...

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Problems solved by technology

[0003] In the related technology, when the indoor temperature is close to reaching the temperature and the compressor is running at a low frequency, due to the slow flow rate of the refrigerant, in order to ensure the target discharge value, target discharge superheat or target suction superheat, the opening of the electronic expansion valve However, if the outdoor temperature begins to drop at this time, the cooling capacity of the air conditioner will gradually increase, exceeding the indoor cooling demand. At this time, it is easy to cause the air conditioner to start and stop repeatedly, which greatly reduces the indoor room temperature. comfort, and also have a certain impact on the reliability of the compressor

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