PIEZOELECTRIC HARVESTING SYSTEM FOR USING COMPRESSIVE FORCE

摘要

A piezoelectric harvesting system using a compressive force according to the embodiment of the present invention includes: a piezoelectric part whose one side is fixed to a fixing unit and which includes a plate mounting a piezoelectric element on a first surface; a repulsive force providing unit which is arranged in the direction of a second surface which is opposite to the first surface of the plate and makes the piezoelectric element generate electric energy by using the compressive force by supplying a repulsive force to the plate before tension is generated on the piezoelectric element. According to the embodiment of the present invention, energy conversion efficiency is improved and damage to the piezoelectric part is prevented by including a structure to increase the generation of the compressive force and to minimize the tension generated on the piezoelectric element.