| 摘要 |
<p>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.</p> |
