Permanent Magnet Dc Motor

1, permanent magnet DC motor concept:
Permanent magnet brushless DC motor is a kind of DC motor that uses a permanent magnet to establish a magnetic field and uses an electronic commutator instead of a commutator to convert direct current energy into mechanical rotation.

2, the characteristics of permanent magnet DC motor:
(1) There is no mechanical contact mechanism composed of commutator and brush group, so the brushless motor has no commutation spark, long life, reliable operation, and the speed is not limited by mechanical commutation.
(2) The permanent magnet motor has no excitation winding, saving the amount of copper used by the motor and reducing the electrical copper consumption. At the same time, there is no need for excitation power, which can reduce the power consumption of the power supply
(3) The magnetic field of the permanent magnet material in the permanent magnet motor is constant, so the voltage adjustment rate of the permanent magnet motor is poor, and the speed regulation is generally achieved by changing the armature voltage/current
(4) Simple structure, small size, high efficiency

3, permanent magnet DC motor components:
Pivot; Front end cover; Screws, gaskets; Bearings; The stator; Rotor; Sensor rotor; Rear end cover; Sensor stator