PIEZOELECTRIC HARVESTING APPARATUS FOR IMPROVING THE OUTPUT CHARACTERISTICS OF A CURRENT OR A VOLTAGE

摘要

PURPOSE: A piezoelectric harvesting apparatus is provided to improve the output characteristic of a piezoelectric ceramic by attaching two piezoelectric ceramics and putting pressure and vibration.;CONSTITUTION: A piezoelectric harvesting apparatus comprises a first piezoelectric element(111), a second piezoelectric element(113), the board(115) of a copper coil or a flexible material, and a fixed end(117). The board of a copper coil or a flexible material is formed on the top of the current transformer. The first piezoelectric element is made of a piezoelectric ceramic in the upper end of the board and is transformed according to the direction of an impact due to vibration. The second piezoelectric element is formed in the bottom portion of one side of the board. The second piezoelectric element is transformed according to the direction of the impact due to the vibration. The fixed end is formed in the lower surface of one side end to be horizontal to the board.;COPYRIGHT KIPO 2012