Patent TW-201217622-A (TW)
Title: useing direction change of the electromagnetic field to move the solenoid tube movable magnets leftward or rightward and retained at a fixed position so as to allow the depression piece assembly to move upward or downward
Inventor: HUANG JIAN-YING
IPC: E05B47/02
Filed: 2010-10-21
Abstract: An electronic device with solenoid tube and cathode lock comprises a body frame assembly, a shielding and maintenance plate, a solenoid tube, a depression piece assembly, a fastener wind-pressure-resisting assembly, a locking assembly and a circuit assembly. The body frame assembly comprises a body frame assembly, a body, an upper cover plate, a front cover plate, a loosening resisting bolt and an assembling bolt. The solenoid tube comprises a solenoid tube magnet, a solenoid tube front lid, a solenoid tube large plastic ring, a solenoid tube movable iron core long pin, a solenoid tube housing, a solenoid tube copper tube, a solenoid tube movable iron core, a solenoid tube movable iron core short pin, a solenoid tube small plastic ring, a solenoid tube rear lid and a solenoid tube magnet. The tenon switching assembly comprises a switching support piece and a switching piece. The fastener wind-pressure-resisting assembly comprises a fastener, a wind-pressure resisting piece, a switching bar, a fastener spring, and a fastener supporting piece. The depression piece assembly comprises a tenon piece, a depressed piece, a depression piece spring, and a depression piece supporting piece. The locking assembly comprises a lock, a door position sensor switch, a lock spring, a door position sensing sphere, a door position sensing element, and a lock supporting piece. The circuit assembly comprises a circuit substrate, substrate supporting piece, and a solenoid detection element. The operation of the solenoid tube is to change the direction of magnetic field according to the direction of current supplied through a switching coil so as to move the movable iron core leftward or rightward, and the movable iron core is fixed by the left and right side solenoid tube magnets. Electrical current needs only to be momentarily supplied rather than supplying power for a long period, so that an effect of saving energy can be achieved. The cathode lock is operated in such a way that the solenoid tube momentarily induces an electromagnetic attraction force for attracting the solenoid tube movable magnet to move leftward or rightward, and the movable magnet is retained by the left and right side solenoid tube magnets. When the solenoid tube pushes rightward the fastener wind-pressure resisting assembly, the depression piece assembly is moved downward to allow the lock to freely rotate door. When the solenoid tube pushes leftward the fastener wind-pressure resisting assembly, mutual engagement is effected with the depression piece assembly to fix the lock against rotation into a locked condition. The present invention uses direction change of the electromagnetic field inside the solenoid tube to move the solenoid tube movable magnets leftward or rightward and retained at a fixed position so as to allow the depression piece assembly to move upward or downward to thereby secure or free the lock to rotate for achieving an effect of electronic lock.