Air conditioner indoor unit and automatic static pressure regulating method and device thereof

Abstract

The invention belongs to the field of air conditioners, and particularly relates to an air conditioner indoor unit and an automatic static pressure regulating method and device thereof. According to the air conditioner indoor unit and the automatic static pressure regulating method and device of the air conditioner indoor unit, after the input voltage of a motor driving a wind wheel and the rotation speed of a fan are detected, the corresponding static pressure value and the rotation speed value which is needed by the motor during working are determined according to the input voltage and / or the rotation speed so as to control the input voltage of the alternating-current motor to enable the motor to reach ideal rotation speed; whether the rotation speed is within a set range or not can be further detected, if yes, automatic regulation is completed, and if not, the prior step is returned and reregulation is conducted until the rotation speed meets the requirement so that the rotation speed, the air volume and the like can be controlled to enable the indoor unit to be capable of working under various working conditions including low static pressure, medium static pressure and high static pressure. Through the design, the static pressure adjustable purpose is achieved, therefore, integrated design of the low-static-pressure, medium-static-pressure and high-static-pressure air-duct-type air conditioner indoor unit is realized, the production models of air conditioners are reduced, and the manufacturing cost is lowered.

Description

technical field [0001] The invention belongs to the field of air conditioners, and in particular relates to an indoor unit of an air conditioner and a method and device for automatically adjusting static pressure thereof. Background technique [0002] At present, during the actual installation process of the indoor unit of the ducted air conditioner, due to the influence of factors such as the installation environment and the length of the connected duct unit, there are different requirements for the static pressure of the indoor unit of the ducted air conditioner. [0003] In order to meet the needs of different installation environments in the market, air conditioner manufacturers generally carry out differentiated designs and produce three types of ducted air conditioner indoor units with low static pressure, medium static pressure and high static pressure to meet market demand, resulting in a variety of product specifications. And poor versatility. Although air conditio...

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method and device for automatically adjusting the static pressure of the indoor unit of an air conditioner, so as to solve the problem of the mismatch of the static pressure of the indoor unit of the ducted air conditioner in the prior art, and the static pressure of the room-based control. The problem of normal operation has eliminated the bad phenomena such as excessive motor temperature rise, excessive air volume, excessive noise, and water blowing.

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