Brushless motor with a brush motor compared with brush motor faults, friction, wear and tear big play a lot of people in the past have brush motor when they encounter this problem, that is to use the motor after a period of time, need to open the motor to clean up the carbon brush, time-consuming, laborious maintenance strength as a household cleaning. Large, fever, short life due to have a brush motor structure, brush and commutator of the contact resistance is very big, overall resistance caused by motor is bigger, easy to heat, and permanent magnet is a thermal sensor, if temperature is too high, will be demagnetization magnetic steel, the motor performance degradation, affect the service life of a brush motor. , low efficiency, small output power above said to have a brush motor heating problems, largely because the current work on the internal resistance of the motor, so electricity have much transformed to heat energy, so there are motor output power is not big, the efficiency is not high also. Advantages of brushless motor, brushless, low interference in addition to the brushless motor brush, the most immediate change is without the motor running when the electric spark, thus greatly reduce the electric spark interference of remote radio equipment. Smooth operation, low noise, brushless motor without brush, less friction force during operation, smooth operation, low noise will be many, the advantages of model operation stability is a huge support. , long life, low maintenance costs less brush, brushless motor wear is mainly on the bearing, from the mechanical point of view, brushless motor is almost a maintenance-free motor, when necessary, the only need to do some cleaning maintenance. Next comparison, know brushless motor relative to have advantage in where the brush motor, but everything is not absolute, a brush motor torque at low speed performance, large torque and other performance characteristics is irreplaceable brushless motor, but in the context of use and ease of brushless motor, with the decline in the cost of brushless controller and brushless technology development and market competition both at home and abroad, brushless power system is the development and popularity of high-speed stage, it also greatly promote the development of the model of motion.
