| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: a piezoelectric unimorph in a conventional piezoelectric generator generates a curve with the substantially same curvature radius, which cause a problem in deflection and does not enhance the power generation performance of the piezoelectric unimorph to the maximum, in addition to a problem of no extraction of maximum electric energy. <P>SOLUTION: In the piezoelectric unimorph 2 formed from an adhered body of a piezoelectric element 11 and an elastic substrate 12, the source 1 of piezoelectric power generation is configured so that the longitudinal thickness of the central portion of either one or both of the piezoelectric element 11 and the elastic substrate 12 is larger than that of the longitudinal central portion, two protrusion portions 10 are formed on a pressing plate 3 so that the protrusion portions 10 are in contact with a top face of the longitudinal central portion of the piezoelectric unimorph 2. <P>COPYRIGHT: (C)2011,JPO&INPIT |
