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Commutator definition: DC motor rotor by the commutator, mica, V-shaped insulating ring, the pressure ring and fasteners for the components of the current device.
Known commutator commutator. DC permanent magnet is on the series motor in order to enable the motor continued to turn down a part.
Commutator including: mechanical commutator, commutator semi-plastic, plastic commutator.
Automotive starter commutator used on the main arch with a mechanical commutator, commutator plastic.
Structure, the commutator contact pads surrounded by a few round, are connected to each contact on the rotor, connected to outside contact with two electrodes called the brush, but only contacted one of the two.
Principle is that when the current through the coil, will the role of the permanent magnet, the attraction and repulsion by turn, and the magnet when it is to balance the original through a power line compared with the corresponding contacts on the commutator and electric Shuafen left, and brush connected to the line driving force of the group produced the corresponding contacts on the coil, so stop repeating down the DC motor to turn up. If there is no commutator role that the motor can only turn less than a half-circle on the card is dead, can only be used as power brakes.
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