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What are the categories of dc motors

Kelvin Zhou 2019-04-24 2492times 返回

Dc motor classification: according to the results are mainly divided into dc motor and dc generator.It can be divided into brushless dc motor and brushless dc motor.According to the structure and working principle can be divided into brushless dc motor and brush dc motor.Brushless dc motor can be divided into permanent magnet dc motor and electromagnetic dc motor.The electromagnetic dc motor is divided into series excited dc motor, shunt excited dc motor, separately excited dc motor and compound excited dc motor.Permanent magnet dc motor is divided into rare earth permanent magnet dc motor ferrite permanent magnet dc motor and aluminum nickel cobalt permanent magnet dc motor.Working principle: the working principle of dc generator is to change the induction alternating electromotive force in armature coil into dc electromotive force when it is drawn out from the brush end by commutator and brush.The direction of the induced electromotive force is determined according to the right hand rule (the magnetic induction line points to the palm of the hand, the thumb points to the direction of the conductor's motion, and the other four fingers point to the direction of the induced electromotive force in the conductor.