Air condition control method and device, and air conditioner

Abstract

The invention relates to the technical field of intelligent home appliances, and discloses an air conditioner control method and device, and an air conditioner. The air conditioner control method comprises the following steps: the current coil temperature of an evaporator in the air conditioner conducting refrigeration operation is obtained; under the situation that the current coil temperature isless than the first set temperature, the current valve opening degree and the current frequency corresponding to the current coil temperature are determined according to the first corresponding relationship between the saved coil temperature range and the valve opening degree of an electronic valve as well as the second corresponding relationship between the saved coil temperature range and the operation frequency of a compressor; and operation of the air conditioner is controlled according to the current valve opening degree and the current frequency. In this way, by adjusting the circulating quantity of a refrigerant in a coil, the influence of uneven flow distribution of the evaporator is reduced, the probability of freezing of the evaporator is decreased, and the effects of frequencyreduction and freezing prevention are improved.

Description

technical field [0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for controlling an air conditioner, and an air conditioner. Background technique [0002] When the shield above the air conditioner installation position is close to the air inlet, or the air inlet is seriously blocked, the air inlet of the indoor unit will be almost blocked, so the indoor unit of the air conditioner cannot exchange heat and the evaporator will freeze. At present, the frequency reduction and even shutdown of the air conditioner compressor can be controlled according to the coil temperature to prevent the indoor unit from freezing. [0003] However, if the flow distribution of the evaporator is uneven, it may cause a large temperature difference between the upper and lower circuits. If the temperature of the coil temperature sensor is higher, the shutdown temperature of the freezing point protection will not be reached, a...

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Problems solved by technology

[0003] However, if the flow distribution of the evaporator is uneven, it may cause a large temperature difference between the upper and lower circuits. If the temperature of the coil temperature sensor is higher, the shutdown temperature of the freezing point protection will not be reached, and the air conditioner will continue to run. The icing of the evaporator is getting more and more serious. After the shutdown and the icing melt, it turns into ice water dripping out or blowing out after restarting, which affects the user experience.

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