Power supplying device for a door lock
OwnerShing-Hwa Doonginventor
Life of this patent
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Abstract
A power supplying device for a door lock has a body, a dead bolt and a latch bolt installed on the body. A tongue is formed at a distal end of a latch bolt. A resilient member is provided between a disk and a flange on the latch bolt. An iron core is movably installed on the body and has a first coil connected with a circuit board by a first wire. The iron core is electrically connected with the storage battery. An inductor formed inside a strike plate has a coil for receiving the iron core. The coil is electrically connected with a transformer by a wire, and the transformer is supplied with AC. Whereby, an induced current is generated in the coil by the mutual inductance between the iron core and the inductor to charge the storage battery for supplying power to the motor.
Claims13
A power supplying device for a door lock, the power supplying device comprising:
- a body (10);
- a dead bolt (30) installed on the body (10) and driven by a motor (29), wherein the motor (29) is electrically connected with a storage battery (28);
- a latch bolt (12) installed on the body (10) and driven by a knob, the latch bolt (12) movably extending through a disk (11) fixed on the body (10), and having a tongue (13) formed at a distal end thereof, and a resilient member (14) provided between the disk (11) and a flange on the latch bolt;
- an iron core (15) movably installed on the body (10) and having a first coil (16) electrically connected with a circuit board (27) by a first wire (26), wherein the circuit board (27) is electrically connected with the storage battery (28);
- and
- a strike plate (20) mounted on a doorframe, the strike plate (20) having a first hole (202) for receiving the dead bolt (30) and a second hole (21) for receiving the latch bolt (12), and having an inductor (22) with a second coil (23) for receiving the iron core (15) therein, wherein the second coil (23) is electrically connected with a transformer (25) by a second wire (24), and the transformer (25) is supplied with AC,
- whereby, an induced current is generated in the first coil (16) by the mutual inductance between the iron core (15) and the inductor (22) to charge up the storage battery (28) for supplying power for the motor (29).
A power supplying device for a door lock, the power supplying device comprising:
- a body (10);
- a dead bolt (30) installed on the body (10) and driven by a motor (29), wherein the motor (29) is electrically connected with a storage battery (28);
- an iron core (15) movably installed on the body (10) and having a first coil (16) electrically connected with a circuit board (27) by a first wire (26), wherein the circuit board (27) is electrically connected with the storage battery (28);
- and
- a strike plate (20) mounted on a doorframe, the strike plate (20) having a first hole (202) for receiving the dead bolt (30), an inductor (22) with a second coil (23) for receiving the iron core (15) therein, wherein the second coil (23) is electrically connected with a transformer (25) by a second wire (24), and the transformer (25) is supplied with AC,
- whereby, an induced current is generated in the first coil (16) by the mutual inductance between the iron core (15) and the inductor (22) to charge up the storage battery (28) for supplying power for the motor (29).
Dependencies are inferred from the claim text.