Advantages and Disadvantages of Brushless Motor and Brushless Motor
Advantages and Disadvantages of Brushless Motor and Brushless Motor
Feb 13, 2019

Brushless motor advantages

1. Brushless motor is brushless and low interference.

Brushless motor eliminates the brush, the direct change is that there is no electric spark when the brushless motor is running, thus greatly reducing the interference of electric spark to remote control radio equipment.

2. Low noise and smooth running of brushless motor.

The brushless motor has no brush, the friction is greatly reduced, running smoothly, the noise will be much lower, this advantage is a great support for the stability of the model operation.

3. Brushless motor has long life and low maintenance cost.

Brushless motor less brush, brushless motor wear is mainly on the bearing, from a mechanical point of view, brushless motor is almost a maintenance-free motor, when necessary, just do some dust removal maintenance can be. The next comparison shows the advantages of brushless motors over brushless motors, but nothing is true. Brushless motors are irreplaceable for their excellent low-speed torque performance and high torque performance. However, as far as the convenience of using brushless motors is concerned, the cost of brushless controllers is decreasing. With the development of brushless technology and market competition at home and abroad, the brushless power system is in the stage of rapid development and popularization, which greatly promotes the development of model sports.

Brushless motor faults

1. the friction of the brush motor is large and the loss is large.

Old model friends in the past when playing with brush motors have encountered this problem, that is, after a period of time using the motor, need to turn on the motor to clean the motor carbon brush, time-consuming and laborious, maintenance strength is no less than a household cleaning.

2. Brush motor has big heat and short life.

Because of the structure of brush motor, the contact resistance between brush and commutator is very large, resulting in the overall resistance of the motor is larger, easy to heat, and permanent magnet is a thermal sensor, if the temperature is too high, magnetic steel will be demagnetized, so that the performance of the motor will decline, affecting the life of brush motor.

3. The efficiency of the brush motor is low and the output power is small.

The above mentioned brush motor heating problem, largely because the current work on the internal resistance of the motor, so a large degree of electrical energy into thermal energy, so the output power of brush motor is not large, efficiency is not high.

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