Working Principle The principle of rotation of the moto […]
The principle of rotation of the motor is based on Folaiming's left-hand rule. When a wire is placed in a magnetic field, if the wire is energized, the wire will cut the magnetic field line to cause the wire to move. The current enters the coil to generate a magnetic field, and the magnetic effect of the current causes the electromagnet to continuously rotate in the fixed magnet to convert the electrical energy into mechanical energy. The interaction with a permanent magnet or a magnetic field generated by another set of coils produces power. The principle of a DC motor is that the stator does not move and the rotor moves in the direction of the force generated by the interaction. The AC motor is a stator winding coil that is connected to alternating current to generate a rotating magnetic field. The rotating magnetic field attracts the rotor together for rotary motion. The basic structure of the DC motor includes "armature", "field magnet", "collector ring", and "brush".
Armature: A soft iron core that can be rotated around the axis wraps a multi-turn coil. Field magnet: A strong permanent magnet or electromagnet that generates a magnetic field. Collector ring: The coil is connected at both ends to two semi-circular collector rings, which are rotated to change the direction of the current. The direction of the current on the coil changes once every half turn (180 degrees). Brush: Usually made of carbon, the collector ring contacts the fixed position of the brush for connection to the power supply.
There are many types of electric motors. In terms of basic structure, the composition is mainly composed of a stator and a rotor.
The stator is stationary in space, and the rotor is rotatable about the axis and supported by bearings.
There is a certain air gap between the stator and the rotor to ensure that the rotor can rotate freely.
The stator and the rotor are wound around the coil, and a current is generated by a current to become an electromagnet. One of the stator and the rotor may also be a permanent magnet.