Patent ID: 8450862
Filing Date: 2013-05-28
Classification: H01M,H02J,H02K,H02P,Y02B,Y02E

Abstract:
1. An electric power generating apparatus comprising: a casing including an interior space; a permanent magnet that is provided in the interior space and capable of being reciprocated; a coil provided on an outer periphery of the interior space; an electric circuit unit to output a voltage, as electric energy, generated in the coil by reciprocating the permanent magnet; a detection unit to detect a characteristic of the voltage; a sound generation unit to generate sound that is associated with at least one of a period and amplitude of the voltage based on a result of detection by the detection unit; wherein the electric power generating apparatus has an outline that is the same as that of one of a primary battery and a secondary battery that are commercially available and having a positive-electrode terminal portion and a negative-electrode terminal portion, wherein the electric circuit unit outputs the electric energy through the positive-electrode terminal portion and the negative-electrode terminal portion; and a shield case to cover an outer surface of the casing, wherein the shield case forms an exterior of the electric power generating apparatus, wherein the electric circuit unit, the detection unit, and the sound generation unit are stored in the shield case with the casing, and wherein the positive-electrode terminal portion and the negative-electrode terminal portion are exposed to an outside of the shield case from an opening portion formed in the shield case.