A DC electromagnetic lock is a type of lock that uses the principle of electromagnetic induction, employing an electromagnet to attract an iron core, thereby creating a locking effect.
The operation of a DC electromagnetic lock involves an electromagnetic coil generating a magnetic field, which causes the electromagnet to attract the iron core, thus creating a locking effect. The lock cylinder is controlled by an electric lock lever. When the electromagnetic coil is energized, the electromagnet attracts the iron core, and the electric lock lever retracts, connecting the lock cylinder and the lock body. Conversely, when the power supply to the electromagnet is lost, the electric lock lever extends, separating the lock cylinder and the lock body, allowing the door to be opened.