Method for controlling rotating speed of indoor fan of air-conditioner

Abstract

The invention discloses a method for controlling the rotating speed of an indoor fan of an air-conditioner. The method includes the steps that n different algorithms and m air volume gears which can be chosen independently by a user himself / herself are adopted according to the difference value of an actual temperature and a target temperature, and corresponding to the same air volume gear, the air speed values are decreased gradually from the air speed value obtained through the algorithm R1 to the air speed value obtained through the algorithm Rn. When the algorithm at a high air speed of the rotating speed of the fan is in transition to the algorithm at a low air speed, the air speed value is decreased continually, hence, from the moment the air-conditioner is started to the moment the target temperature is reached, the difference value of outlet temperatures is reduced, and the comfort of the user is greatly improved. Meanwhile, the user can choose different air volume gears independently, so that different air discharging effects are achieved, and the using degree of freedom of the user is greatly improved.

Description

technical field [0001] The invention relates to the field of air conditioner control, in particular to a method for controlling the rotational speed of an indoor fan of an air conditioner. Background technique [0002] There are two air volume modes in the indoor fan of the air conditioner in the prior art: [0003] The first type: the user can adjust to any air volume gear, and the air will be supplied according to the rotation speed corresponding to the gear; [0004] The second type: based on the control of the start and stop of the compressor; when the compressor is running, the air volume is adjusted according to the room temperature to switch between high and medium air volumes, and when the compressor stops, the air volume is switched to low air volume. [0005] The first type of active air volume mode is not suitable for frequency conversion machines: first, the frequency of the compressor of the frequency conversion machine can be adjusted with the change of room t...

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Problems solved by technology

[0005] The first type of active air volume mode is not suitable for frequency conversion machines: first, the frequency of the compressor of the frequency conversion machine can be adjusted with the change of room temperature. Then, due to the frequency drop stage of the inverter, the temperature of the indoor evaporator will rise. If the same air volume is maintained, the condensed water will evaporate, causing customers to feel bad.

[0006] Disadvantages of the second air volume mode: First, the automatic adjustment of the air volume gear may cause misunderstandings by customers. For example, the air volume is automatically adjusted from the set medium air volume to a large air volume. At this time, if the customer manually sets it again to a large air volume, the air conditioner will find that the air conditioner does not respond. , the customer misunderstood that the air conditioner was faulty; then, when the air volume is automatically switched, there is no specified switching speed, resulting in the noise of the air volume switching

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