Chinese automatic electric door motor, the general motor is mainly composed of two parts: fixed part called stator, rotating part called rotor. Expansion door maintenance and other end cover, fan, cover, frame, junction box, etc. The working principle of the motor is based on the law of electromagnetic induction, ohm's law of the whole circuit, and the law of electromagnetic force. When the pole rotates in a clockwise direction, the magnetic line of the pole cuts the rotor guide bar, and the electromotive force is induced in the guide bar. The direction of the emf is determined by the right hand rule. Because the movement is relative, if the magnetic pole does not move, the rotor guide bar along the counterclockwise rotation, the guide bar can also induce the emf.
Under the action of electromotive force, electric door maintenance WJSJ-8XF closed guide bar on the generation of current. The current interacts with the magnetic field of the rotating pole so that the guide bar of the rotor is subjected to the electromagnetic force (ampere force), the direction of which can be determined by the left hand rule. By electromagnetic force and then produce electromagnetic torque, rotor rotation. In this design, the motor is used to drive the opening and closing of the electric door to complete the control of the electric door.
