PIEZOELECTRIC ENERGY HARVESTER DEVICE

摘要

A piezoelectric power generator by the hit of a protrusive element according to one embodiment of the present invention includes a rotation member which has a circular cross section and protrusive elements which are distributed along a circumferential direction and is rotatable, a support member whose one end is hit by the protrusive element when the rotation member is rotated, and a piezoelectric element which is attached on the support member. An interval between the protrusive elements is controlled to continuously generate the hit on the support member. The other end of the support member is fixed on a fixture element. The piezoelectric element generates power by a vibration by the hit applied to the support member.