VIBRATION GENERATING MODULE WITH BENDING STRESS INDUCED HOLE FOR HIBRID ENERGY HARVESTING

摘要

PURPOSE: A hybrid energy harvesting vibration power generation module is provided to harvest electrical energy enhanced by both piezoelectric and electromagnetic induction by integrating a plurality of piezoelectric type unit generators in which a bending force is concentrated. CONSTITUTION: An electromagnetic induction coil unit is located in the center part of a lower base. A fixing block(40) is located on the upper face of the lower base. A vibration substrate(50) is installed in the free end side to vibrate with the maximum amplitude by an external force and an elastic restoration force. A unit piezoelectric device(60) is installed in the vibration substrate and generates a current by receiving the variation of pressure due to bending transformation. A magnetic body(70) is installed in the free end side of the vibration substrate and vibrates by external vibration.