What is the principle of motor?

The principle of motor is to drive the starter rotor to rotate through the forced rotation of the energized coil in the magnetic field, and the pinion on the rotor drives the engine flywheel to rotate.

The inner gear ring and the shell can be fixed together, and the oil entering from the oil port pushes the rotor to revolve around the center point. This slowly rotating rotor is driven by a spline shaft and becomes a cycloidal hydraulic motor.

After the first cycloidal motor came out, after decades of evolution, another concept of motor began to form. This kind of motor is equipped with rollers in the built-in gear ring. The motor with roller can provide higher starting and running torque, and the roller can reduce friction, thus improving efficiency, and the output shaft can produce stable output even at a very low speed.

By changing the direction of iostream, the motor can be quickly commutated, and equivalent torque can be generated in two directions.

Extended data

The motor is based on the principle that the AC electromotive force induced in the armature coil is converted into DC electromotive force when it is led out from the brush end through the commutator with brush commutation function.

The direction of induced electromotive force is determined according to the right-hand rule (the magnetic induction line points to the palm, the thumb points to the direction of conductor movement, and the other four fingers point to the direction of induced electromotive force in the conductor).

The direction of stress on a conductor is determined by the left-handed rule. This pair of electromagnetic forces forms a torque acting on the armature, which is called electromagnetic torque in rotating electric machine. The direction of the torque is counterclockwise, in an attempt to make the armature rotate counterclockwise. If this electromagnetic torque can overcome the resistance torque on the armature (such as the resistance torque caused by friction and other load torques), the armature can rotate counterclockwise.

DC motor is a kind of motor that runs on DC working voltage. Widely used in tape recorders, video recorders, DVD players, electric razors, hair dryers, electronic watches, toys and so on.

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