Patent ID: 8322876

Claim:
An electric power generating device for a wearable object, the electric power generating device comprising: a transmission unit configured in the wearable object, for transferring an external force received by the wearable object to a driving force; a core configured in the wearable object, the core having a first end; a first coil coupled to the core; a magnetic permeable member configured in the wearable object and connected to the transmission unit, for receiving the driving force and moving by means of the driving force; a first magnetic member configured on the magnetic permeable member; and an electric power transforming module coupled to the first coil; wherein when the magnetic permeable member receives the driving force and moves, the magnetic permeable member pushes the first magnetic member to move to the first end, which results in the magnetic flux varied in the core to induce a first induced electromotive force in the first coil, and the electric power transforming module transforms the first induced electromotive force into an electricity.