To solve the problem that, if expanding a frequency band of high power generation amount in the power generation characteristic of a power generation component by arranging piezoelectric vibrators having different frequency characteristics, a piezoelectric element that contributes to power generation comes to be a single unit among a plurality of units at one moment, resulting in reduction in the maximum power generation amount when compared with a piezoelectric component having the same size.
There are provided a mechanical vibration propagation part 102 for propagating mechanical vibration, a first vibration part 103 connected to the mechanical vibration propagation part 102, and a second vibration part 104 connected to the mechanical vibration propagation part 102. The first vibration part 103 includes a first piezoelectric part 105, and the second vibration part 104 includes a second piezoelectric part 106. The first vibration part 103 and the second vibration part 104 are combined with each other through the mechanical vibration propagation part 102 so that a power generation component and a power generator are vibrated in symmetrical mode, or diagonally symmetrical mode, otherwise in both of them.
TAKEDA KATSU
NAKAZONO SHINSUKE
KOMAKI KAZUKI
FURUKAWA SHIGEO
FUKUSHIMA SUSUMU
Daisuke Nagano
Kentaro Fujii