What are the applications of brushless motors?

The brushless DC motor consists of two parts, namely the motor body and the driver, which is a typical product of mechatronics. Brushless DC motors are widely used in automobiles, tools, industrial control, automation, aerospace, etc. Below, I will introduce to you the fields in which brushless DC motors are used.

Many years ago, General Electric Company of the United States launched a so-called smart motor that attracted international attention. In fact, this motor is a brushless DC motor controlled by a microprocessor. Because this motor has a very wide speed regulation range, low noise, high efficiency, and can achieve certain "intelligent" operations, it has been favored by home appliance industry designers as soon as it came out. Later, it was gradually applied to home appliances such as washing machines, air conditioners, refrigerators, etc., so that these home appliances can achieve power saving, multi-function, and automatic control, such as timing, fixed temperature, natural adjustment, and running according to software programs.

In recent years, DC motors have been applied to various home appliances, improving the degree of automation of home appliances, such as air conditioners automatically adjusting the temperature according to room temperature, washing machines can select the type of clothes, and refrigerators automatically select the temperature of the refrigerator and freezer compartments. There is a great trend of replacing AC motors in household appliances. At present, such products have been developed in China and will soon be launched on the market. The application prospects of brushless DC motors in household appliances have greatly stimulated the development and research of brushless motors.

At present, high-end CNC processing equipment has been applied, and brushless DC motors have a trend of replacing traditional DC and AC motors. In addition, some industrial processing equipment such as industrial sewing machines, light printing machinery, and food processing machinery have also begun to be promoted and applied. The potential practicality that deserves close attention is industrial robot drive control. Brushless motors are the preferred variety. At present, there are more than 1 million robots of various types in the world, and the annual growth rate is higher than 20%. This is because the requirements of speed, torque and positioning control in this application are met by brushless DC motors. Therefore, the demand for brushless motors in the field of industrial automation is very large.

Because most of the electronic circuits in electronic equipment are DC-powered, there are requirements for motor speed regulation, speed stability, positioning control and other characteristics. Therefore, most of the current precision equipment uses brushless motor drive control. Such as computer hard disk drive, laser typewriter prism drive, video recorder drum drive, CD drive, medical diagnosis CT machine, high-speed dental drill treatment, solar panel drive on satellite, instrument ventilation fan, etc. The application in this field is gradually becoming popular to replace brush motors.

Modern automobiles are developing in the direction of luxury, with a high degree of automation, using many types of plastic motors, many of which are difficult to repair. The parts use DC brushless motors.

In addition, electric vehicles, as a pollution-free means of transportation in the future, are valued by the industrial community of various countries. At present, they are increasing investment and stepping up research and development. The most ideal power source is DC brushless motors. At present, they are first used in electric motorcycles or electric mopeds. They have gradually entered mass production. It is expected that electric vehicles will also be widely popularized within 3-5 years.

Brushless motor with driver