Power-generating device with vibration plate that applies compressive stress to the piezoelectric layer when the vibration plate does not vibrate
US9525365B2 · kind B2 · utility
4Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power-generating device includes a vibration plate, a lower electrode on the vibration plate, a piezoelectric layer made of piezoelectric material on the lower electrode, and an upper electrode on the piezoelectric layer, a fixing member for supporting a fixed end of the vibration plate. The vibration plate applies compressive stress to the piezoelectric layer when the vibration plate does not vibrate. The power generating device is excellent in long-term reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.