| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact piezoelectric generator that can increase the power generation amount in a vibration area at a low frequency side.SOLUTION: A piezoelectric power generator has a power generation unit 1 having a piezoelectric element 11 as a power generation unit and a diaphragm 12 which are configured so that the piezoelectric element 11 is joined to the diaphragm 12, and a first support body 21 for supporting the diaphragm 12. The diaphragm 12 has a bent portion 13 which is bent so that an extension area from the piezoelectric element 11 to the first support body 21 protrudes to at least one side in a direction vertical to a mount face 122 on which the piezoelectric element 11 is mounted.SELECTED DRAWING: Figure 1 |
