Brushless motors use square wave self-controlled permanent magnet synchronous motors, which are very similar to three-phase asynchronous motors and have great advantages in performance; brushless motors have low interference, low noise, and long life. Let me introduce them to you next.

1. Introduction to brushless motors

1. The brushless DC motor does not use a mechanical brush device. It uses a square wave self-controlled permanent magnet synchronous motor, uses a Hall sensor to replace the carbon brush commutator, and uses NdFeB as the permanent magnet material of the rotor.

2. The stator winding of the motor is mostly made into a three-phase symmetrical star connection, which is very similar to the three-phase asynchronous motor. There are magnetized permanent magnets stuck on the rotor of the motor. In order to detect the polarity of the motor rotor, a position sensor is installed in the motor.

 3. Compared with ordinary traditional DC motors, it has great advantages in performance. It has the advantages of high efficiency, low energy consumption, low noise, long life, high reliability, servo control, and stepless frequency conversion speed regulation.

2. Advantages of brushless motors

1. No brushes, low interference

 The brushless motor removes the brush, and the direct change is that there is no spark generated when the brushed motor is running, which greatly reduces the interference of sparks to remote control radio equipment.

2. Low noise and smooth operation

The brushless motor has no brushes, so the friction during operation is greatly reduced, the operation is smooth, and the noise is much lower. This advantage is a huge support for the stability of the model's operation.

3. Long life and low maintenance cost

The wear of brushless motors is mainly on the bearings. From a mechanical point of view, brushless motors are almost maintenance-free motors. When necessary, you only need to do some dust removal maintenance.