ELECTROMAGNETIC LOCK Russian patent published in 2017 - IPC E05B47/02 

FIELD: physics.

SUBSTANCE: electromagnetic lock comprises a base formed as an U-shaped bracket with a rod and an axis mounted at the bottom. A sleeve is located on the axis, fixed to the middle part of the grip extending with the ability to move through the single slit hole in the front base bend. The hook is formed at the end of the grip extending beyond the base, and the other end of the grip is bent at the right angle, and an L-shaped magnetic circuit is fixed thereon, on the outer surface of which a permanent magnet is mounted. The second L-shaped magnetic circuit with the electromagnet is mounted on the inner surface of the rear base bend, wherein the air gap is created between the outer surface of the permanent magnet and the electromagnet armature, and between the L-shaped part of the first magnetic circuit and the end of the second magnetic circuit, which allows the grip to rotate on the axis. The lock comprises two plate magnetic circuits located opposite each other, with the coils thereon and the holes in the rear part of the magnetic circuits. The front part of the plate magnetic circuits passes through the slots and protrudes above the outer surface of the front base bend. The permanent magnet is located between the plate magnetic circuits. The support plate with a hole and the rod-pusher with a cylindrical return spring are mounted on the inner surface of the base. The lock crossbar is in the form of two brackets covering each other, connected by the axis passing through the side bracket planes. The rod-pusher positioning sensor is mounted on the inner surface of the base, the output of which is the data output of the door position, and the coil outputs of the plate magnetic circuits are connected to the electromagnet outputs through the delay unit. The lock is controlled by the microprocessor controller with the supply voltage port, with the two data input ports, with the lock controlling port, with the communication interface port, to which the ID reader, the rod-pusher positioning sensor, the electromagnet are connected. The communication interface port of the controller is an electromagnetic lock controlling port.

EFFECT: increasing the reliability.

6 cl, 4 dwg