PIEZOELECTRIC ENERGY HARVESTER WITH EXCELLENT POWER GENERATION CHARACTERISTICS

摘要

Disclosed is an energy harvester which is excellent in power generation characteristics in a wide frequency range by attaching opposite ends of plate-shaped bodies adjacent to each other and using the same or by using an integrated plate-shaped body. According to a first embodiment of the present invention, the piezoelectric energy harvester comprises: a case including a bottom surface and a side surface vertically extended from the bottom surface; a fixed unit disposed in the case in a longitudinal direction and having one end and the other end fixed to the side surface of the case; a plurality of plate-shaped bodies having one side fixed to the fixed unit in a cantilever shape and spaced apart from each other; a piezoelectric element disposed on one surface or double-sided surfaces of each of the plate-shaped bodies; and a cover unit covering the case. The opposite ends of the adjacent plate-shaped bodies among the plurality of plate-shaped bodies spaced apart from each other can be connected to each other with a plate-shaped body material.;COPYRIGHT KIPO 2020