PIEZOELECTRIC POWER GENERATOR

摘要

Provided is a piezoelectric power generator that has high power generation efficiency and minimal likelihood of damaging piezoelectric bodies. The piezoelectric power generator 21 is provided with a plurality of power generation elements 22, each of which having: a support body 3A provided with a plate-shaped flat-surface part that has a main surface 3Aa and another main surface 3Ab, and a projecting part 3Ad that protrudes from the central part of the other main surface 3Ab; and a piezoelectric body 4A provided on the main surface 3Aa. The piezoelectric body 4A is disposed so as to overlap the projecting part when the support body 3A is viewed in plan view along the direction perpendicular to the main surface 3Aa. The plurality of power generation elements 22 overlap in the direction perpendicular to the main surfaces 3Aa. The support body 3A of at least one of a pair of adjacent power generation elements 22 is provided with a plurality of support parts 3Ac (legs) that protrude from a peripheral edge part further outward from the central part of the flat surface part. The plurality of power generation elements overlap, interposed by the legs 3Ac, so that the main surface 3Aa and the another main surface 3Ab of the mutual support bodies 3A face each other in the pair of adjacent power generating elements 22.