AUTOMATIC NONCONTACT RECHARGER USING BRIGHTNESS AND DOOR LOCKER USING THE SAME

摘要

PURPOSE: A non-contact type automatic charging device using light and a door lock device using the same are provided to eliminate the necessity of replacement of battery cells, while allowing the automatic charging operation to be performed even in the absence of the light. CONSTITUTION: A non-contact type automatic charging device comprises a photovoltaic cell(110) connected to a charging circuit(120) of a battery cell(130) so as to supply an electrical energy; a residual amount monitoring unit(140) for monitoring the residual amount of the electrical energy accumulated in the battery cell; a light emitting unit for emitting a charge request signal light in accordance with the result of monitoring of the residual amount monitoring unit; a light receiving unit for receiving the charge request signal light emitted from the light emitting unit; and a light supply unit for supplying light energy for photoelectric conversion when the charge request signal light is received at the light receiving unit.