Brush motors and brushless motor is equipped with the commonly used is the difference between a brush. Motor rotor on the round coil, current by graphite brush or copper brush and installed on the rotor of the annular electrode contact for electromagnetic transformation, achieve the goal of electrode rotation. On the brushless motor rotor winding, don't need to brush to the current, electromagnetic coils on the stator of the motor, after electrify can directly produce magnetic field to drive the rotor rotation. Did not have the brush friction resistance and noise, the noise of the whole smaller, higher energy conversion efficiency, no maintenance, longer life. A brush motor and what is the difference between a brushless motor? Have the advantages and disadvantages of brush motor advantages: cheap, simple technical disadvantages: low conversion efficiency; Noise is relatively large; Speed is not high; Short life; The advantages and disadvantages of brushless motor advantages: high speed; The output torque; Life is long; Disadvantages: high technical requirements, cost expensive;
