Piezoelectric energy harvesting bending structure and the method of manufacturing thereof
US11387403B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 5, 2018 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/508
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A piezoelectric bimorph cantilever beam system includes a shim having a first main surface, a second main surface opposite the first main surface, a proximal end connected to an anchor, and a distal end opposite the proximal end. The system further includes a first piezoelectric layer laminated on the first main surface of the shim and a second piezoelectric layer laminated on the second main surface of the shim. A first beam stiffener is provided over the first main surface of the shim adjacent to the anchor with the first beam stiffener at least partially covering the first piezoelectric layer. A second beam stiffener is provided over the second main surface of the shim adjacent to the anchor with the second beam stiffener at least partially covering the second piezoelectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.