Advantages of brushless motor

1. No brush, low interference

The most direct change of brushless motor is that there is no electric spark generated by the operation of brush motor, which greatly reduces the interference of electric spark on remote control radio equipment.

2. Low noise, smooth operation

Without the brush, the friction force is greatly reduced, the operation is smooth and the noise is much lower. This advantage is a great support for the stability of the model operation.

3. Long life and low maintenance cost

Without the brush, the wear of brushless motor is mainly on the bearing. From the mechanical point of view, the brushless motor is almost a maintenance free motor. If necessary, just do some dust removal maintenance.

Performance comparison between brushless and brushless motors

1. High friction and high loss

Some friends often encounter this problem when using a brush motor. That is, after using the motor for a period of time, it needs to open the motor to clean the carbon brush of the motor, which is time-consuming and laborious, and the maintenance intensity is no less than a family cleaning.

2. High fever and short service life

Due to the structure of the brush motor, the contact resistance between the brush and the commutator is very large, which makes the overall resistance of the motor large and easy to heat up. The permanent magnet is a thermal sensitive element. If the temperature is too high, the magnetic steel will demagnetize, which will degrade the performance of the motor and affect the service life of the brush motor.

3. Low efficiency and low output power

The heating problem of the brush motor mentioned above is largely due to the current doing work on the internal resistance of the motor, so the electric energy is largely converted into heat energy, so the output power of the brush motor is not large and the efficiency is not high.

Through the comparison, we can know where the advantages of the brushless motor are compared with the brushless motor, but everything is not absolute. The performance characteristics of the brushless motor such as excellent low-speed torque performance and high torque are irreplaceable. However, from the perspective of the convenience of the use of the brushless motor, with the declining trend of the cost of the brushless controller and the development and market competition of the brushless technology at home and abroad The brushless power system is in the stage of rapid development and popularization, which greatly promotes the development of domestic brushless motor.