| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric generator which converts even week vibration energy or relatively large mechanical energy generated by natural force or artificial force to electric energy, and is excellent in reproducibility of conversion to the electric energy. <P>SOLUTION: The piezoelectric generator comprises: a roughly rectangular or roughly sectorial piezoelectric element provided with a piezoelectric plate and a reinforcing plate, which includes the piezoelectric plate polarized in the thickness direction, arranged and stuck along the longitudinal direction or radial direction of the reinforcing plate; a holding member for movably holding one end in the longitudinal direction or radial direction of the piezoelectric element; and an elastic body abutted to the holding member. The other end in the longitudinal direction or radial direction of the piezoelectric element is fixed by a different holding member. When the elastic body is displaced by external force applied to the holding member or the elastic body and when the external force is removed and the elastic body is returned to its original shape, the electric energy is obtained by the displacement of the piezoelectric element. <P>COPYRIGHT: (C)2008,JPO&INPIT |
