| 摘要 |
PURPOSE:To realize a highly efficient inexpensive generator for portable machine which can be downsized and made thin easily by exciting a piezoelectric element or a member coupled therewith by means of acceleration or displacement to cause free oscillation for generating power. CONSTITUTION:The generator comprises a piezoelectric element 11a, a metal plate 11b coupled therewith and also serves as a take-out electrode, a fixing part 13 of generator subjected to acceleration or force in the direction 14, a power take-out plane 15 of the piezoelectric element, and a stopper 16 for confining the displacement of the element within an appropriate range. |
