Description of Electric Motor Carbon Brush
The main role of a electric motor is to change the current direction. While, AC motor is to change the conductivity of the rotor coil, so as to changing the rotor pole, changing the motor movement. Almost every motor need carbon brush, it is an very important component of motor parts. Carbon brushes for the motor commutator or slip ring, as the export and import current sliding contact body parts. It is electrical conductivity, thermal conductivity and good lubrication, and mechanical strength and a certain instinct for sexual sparks. Many electric shavers, kitchen appliances, electric bicycle use carbon brushes, so do the DC motors (except the brushless ones).

Main Function of Electric Motor Carbon Brush
1. It will be added to the external current through the brush while rotating the rotor (input current)
2. The major axis of the electrostatic charge led into the earth through the brush (ground brush, output current).
3. The product can use to change the current direction (the brush also plays for this role in the commutator motor).
Motor brushes used in those electric motor can be divided into turbo power brush, rolling electrical power brush, power brush traction motor, AC electrical power brush, aircraft electrical power brush.