Judging the fan control method after the air conditioner is heated to temperature

Abstract

The invention discloses a fan control method for judging a condition of heating to a set temperature by an air conditioner. The fan control method comprises the following specific steps: a, under a heating mode, detecting a room temperature sensor, stopping a compressor after a set temperature is reached, and regulating an indoor fan to operate at a low air gear; b, after the temperature value measured by the indoor sensor is reduced to a re-starting temperature of the compressor, judging whether the stop time of the compressor conforms to the shutdown protection time, and if the stop time conforms to the shutdown protection time, entering the step c, otherwise, entering the step d; c, directly re-starting the compressor, re-operating the heating mode and regulating the indoor fan to operate at a normal air gear; and d, turning off the indoor fan until the stop time of the compressor conforms to the shutdown protection time, re-starting the compressor and re-operating the indoor fan at the normal air gear after lagging by one hot air protection time period. The fan control method not only can ensure that the compressor can timely re-start, but also can prevent cold outlet air of the indoor fan.

Description

technical field [0001] The invention relates to a control method of an air conditioner, specifically a fan control method for judging that the air conditioner is heating to a certain temperature, more specifically, when the air conditioner is heating and running, when the indoor temperature is heated to the set temperature , After the compressor stops, the control method of the indoor fan. Background technique [0002] In the air conditioner of the prior art, in the heating mode, the stop temperature and the restart temperature of the compressor are set. The stop temperature is generally the set indoor temperature target value plus 1°C, and the restart temperature is generally the set indoor temperature. minus 1°C from the target value. The room temperature sensor for measuring the indoor temperature is arranged at the return air outlet of the indoor unit of the air conditioner. When the temperature measured by the room temperature sensor is greater than or equal to the sh...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned fan control method has the following disadvantages, that is, after the compressor is turned off at temperature and the indoor fan is also stopped, because the indoor unit is installed in a relatively high position in the room, the hot air will float up, resulting in heat accumulation at the return air outlet where the room temperature sensor is installed. Moreover, after the fan is stopped, it cannot convect heat with the whole room, causing the indoor temperature measured by the room temperature sensor to be higher than the actual indoor temperature. Therefore, it often happens that the actual room temperature meets the conditions for restarting the compressor to reheat, but the compressor does not. It cannot be started normally, making the temperature of the whole room continue to drop, making people feel cold and uncomfortable