| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric generator of simple construction that makes it possible to obtain higher power generated than that of piezoelectric generators in the past. <P>SOLUTION: The piezoelectric generator generates power by applying distortional deformation to a piezoelectric ceramic body formed in plate shape. This piezoelectric generator is constructed of the piezoelectric ceramic body, a cushion material that holds the piezoelectric ceramic body in such flexible state that the natural vibration of the piezoelectric ceramic body is less prone to be transmitted to any other structure, and an impact applying means that applies impact to the piezoelectric ceramic body. This impact applying means is formed of steel balls placed at both ends of an elastic supporting member. The piezoelectric ceramic body and the cushion material are supported by an elastic holding body extended in the direction of the piezoelectric ceramic body so that they are in midair and separated from the fixing portion of the elastic supporting member. Vibration from impact application by the steel balls is absorbed by the elastic holding body. With the absorbed force added to the restoring force of the elastic holding body, the piezoelectric ceramic body is returned toward the steel balls. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
