Electromagnetic DC motor consists of stator pole, rotor (armature), commutator (commonly known as commutator), brush, housing, bearing, etc

    The stator pole (main pole) of electromagnetic DC motor is composed of core and excitation winding. According to the different excitation methods, it can be divided into series excited DC motor, shunt excited DC motor, separately excited DC motor and compound excited DC motor. Due to different excitation modes, the law of stator pole flux (generated by the excitation coil of stator pole) is different.