Motor control method and system, and air conditioner

Abstract

The invention discloses a motor control method and system as well as an air conditioner, wherein the method comprises the following steps of: detecting an indoor unit temperature of an indoor unit of the air conditioner as well as the temperature of an air suction pipe of a compressor of the air conditioner; and according to a relation between the indoor unit temperature and the temperature of the air suction pipe, regulating rotation speed of a motor of the indoor unit. According to the motor control method disclosed by the invention, the rotation speed of the motor of the indoor unit is regulated according to the relation of the detected indoor unit temperature and the detected temperature of the air suction pipe by detecting the indoor unit temperature of the indoor unit of the air conditioner as well as the temperature of the air suction pipe of the compressor of the air conditioner, so that regulation of the rotation speed of the motor meets a practical state of a refrigerant in the air conditioner better, and the rotation speed of the motor of the indoor unit is adaptive to an existing refrigerant condition, and therefore, protective measures in an operation process of the air conditioner are effectively improved, and control and regulation capacity of the air conditioner is improved. Finally, the problems that the protective measures on a conventional motor control mode of the indoor unit of the air conditioner are less, and the control and regulation capacity is relatively poor are solved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a motor control method and system and an air conditioner. Background technique [0002] At present, the motor speed of the indoor unit of the air conditioner is usually adjusted according to the difference between the set temperature of the air conditioner set by the user and the actual indoor ambient temperature. That is, when the difference between the user-set temperature and the actual indoor ambient temperature is greater than the preset value, the motor is controlled to run at high speed; when the difference between the user-set temperature and the actual indoor ambient temperature is smaller than the preset value, the motor is controlled to operate at Run in low gear. However, when the above-mentioned traditional adjustment of the motor speed is performed according to the difference between the user’s set temperature and the actual indoor ambient temperature,...

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a motor control method and system and an air conditioner for the problems that the motor control method of the traditional air conditioner indoor unit has fewer protection measures and poor control and adjustment capabilities.

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