1. Basic principles and characteristics of brushless DC motors
Brushless DC motors are high-efficiency, low-noise, high-torque, and low-power motors. The basic principle is to use the principle of electromagnetism to drive the motor by alternating the three-phase AC signals in the permanent magnet and the armature. Since the motor does not need to use brushes and commutators to achieve commutation, the impact of friction and wear on the motor performance can be avoided, thereby improving the reliability and life of the motor.
2. Application industries and related products of brushless DC motors
1. Electric vehicle industry
Brushless DC motors are widely used in transportation tools such as electric bicycles, electric motorcycles, and electric vehicles. Compared with traditional brushed DC motors and AC asynchronous motors, it has the characteristics of high efficiency, low noise, low vibration, low electromagnetic interference, and no commutation operation is required, so it is known as a “special motor for electric vehicles.”
2. Robot industry
Brushless DC motors are widely used in various types of robots, such as household robots, industrial robots, etc. The precision control and high-speed movement of robots require motors with high speed, high precision, and low inertia, and brushless DC motors are the ideal choice to meet these requirements.
3. UAV industry
Brushless DC motors are also widely used in the field of UAVs. The hovering and sharp turns of UAVs require high reaction speed and precision of the motor, and the high speed, high precision and low noise of brushless DC motors make it one of the mainstream motors for UAVs.
4. Industrial automation industry
Brushless DC motors are also widely used in various industrial automation fields, such as machine tools, stamping equipment, injection molding machines, etc. In these fields, precise control and high-speed movement of motors are also very important, so brushless DC motors are widely used.
3. Conclusion
The above is an introduction to the application industries and related products of brushless DC motors. Due to its advantages of high efficiency, low noise, and low electromagnetic interference, brushless DC motors are widely used in various fields and gradually replace traditional brushed DC motors and asynchronous AC motors.