|
Commutator in the motor played two roles:
1, the rotor is rotating, it is impossible to use a fixed connection, the power supply into the rotor coil, so to go through the brush and slip ring sliding contact, the power supply into the rotor coil.
2, if the rotor coil current direction is always the same, the rotor will stop at the pole of the rotor and the stator coil of pole position to attract the opposite sex with, not turn, so must go to a certain angle in the rotor to change its current direction, the pole is to change the direction of the rotor coil, the rotor can continue to move forward under the action of the stator magnetic field rotation. At a certain angle in the slip ring contacts on the film, alternating with exposure to rotating non-stop carbon brushes fixed electrode, the timely completion of the current direction of the rotor coil in the conversion.
|
English
中文版