POWER GENERATION APPARATUS USING PIEZOELECTRIC ELEMENT STACKED BY MULTILAYER STRUCTURE

摘要

The present invention relates to a power generation apparatus using a piezoelectric element stacked by a multilayer structure, for increasing generation efficiency compared with a space by multi-stacking a cantilever assembly including the piezoelectric element and a cantilever. According to the present invention, the power generation apparatus includes: a plurality of cantilevers having one end fixed to a fixation part, having an elastic feature, and arranged to be spaced apart at regular intervals in s vertical direction; the piezoelectric element arranged between the cantilevers and arranged on the top of an upper cantilever and the bottom of a lower cantilever, to generate a current by oscillation; an oscillation pendulum coupled to an opposite end of the cantilever and having a predetermined weight; a bonding material for bonding the piezoelectric element and the cantilever; and a thermoplastic coating material formed on a surface of a piezoelectric element attached to the top surface of the upper cantilever, and on a surface of a piezoelectric element attached to the bottom surface of the lower cantilever. The oscillation pendulum oscillates the cantilever by external force, and the piezoelectric element generates the current by the oscillation of the cantilever in the vertical direction, thereby multi-stacking the cantilever assembly including the piezoelectric element and the cantilever, so that the generation efficiency compared with the space is increased.;COPYRIGHT KIPO 2016