Piezoelectric energy harvester system with composite shim
US10097112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/872
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibrational multi-morph piezoelectric energy harvester includes a composite shim having a parallelepiped form with a thickness dimension made smaller than width and length dimensions, and having a stiffness shifting from one extremity to the other extremity to minimize mechanical constraints developed at a clamping area; a seismic mass mounted at an end opposite to the clamping area to mechanically match the system to the surrounding vibration resonance; one or more piezoelectric layers laminated on said composite shim; and electrodes plated onto the one or more piezoelectric layers for connection to an electronic harvesting circuit, a battery, or a super capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.