1
what’s the use?
can automatically shut down when the door is not completely closed, the door is not closed and to avoid a safety hazard.
2
advantage
· heavy door, a smaller force passengers do not have to make great force shut the door.
· met when both hands are occupied only by the shoulder or body closing without having to force, to light by the door.
3
Mistakes
* not completely power off, it is necessary to shut the door to near the closed state, the door can automatic pull.
4
Did you know?
· some models trunk door (tail gate) is also used electric pull.
5
Technology Principle
Electric door pull is controlled by a gate power source is closed off. Magnetic force generated by energizing the door is closed. De-energized, the magnetic force disappears, the door opened. On the door frame (or the door panel edge) equipped with an electromagnetic coil, when the door is opened, the current through the coil will, so as to form an electromagnetic field so that the magnetic force, when the door is closed from the door frame to close the door will be automatically suction.