PIEZOELECTRIC POWER GENERATING DEVICE AND MANUFACTURING METHOD THEREOF

摘要

A piezoelectric power generating device is provided which is capable of extracting a large amount of power without an increase in device size, even when applied with vibration of low frequency or weak external force, and which is easy to manufacture.;The piezoelectric power generating device includes a piezoelectric power generating plate including a piezoelectric plate having a polarized regions that are different in polarization direction, and a support member attached to the piezoelectric power generating plate. Further, the piezoelectric power generating plate includes a fixed portion fixed to the support member, a free end displaced relative to the fixed portion when an external forced, such as a vibration forced, is applied, and a cutout located between the fixed portion and the free end.

主权项

1. A manufacturing method of the piezoelectric power generating device comprising:
preparing a piezoelectric power generating plate having a fixed portion and a free end displaced relative to the fixed portion, forming a cutout in the piezoelectric power generating plate between the fixed portion and the free end; and attaching a support member to the fixed portion of the piezoelectric power generating plate, wherein the piezoelectric power generating plate includes a first piezoelectric power generating plate portion disposed between the fixed portion and the free end, and a second piezoelectric power generating plate portion disposed between the cutout and the free end.