Power generation device
US9893653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2013 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Oct 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device able to generate electrical power through relative rotational motion of first (370, 380) and second (200, 230) principal components around an axis of rotation (220); wherein: the first and second principal components comprise an arrangement of piezoelectric elements (380) and permanent magnets (230, 370) such that the interaction between these magnets and piezoelectric elements, in use, makes it possible to generate electricity; and wherein: the second principal component (200, 230) comprises a center of mass offset from the axis of relative rotation (220) such that the response of the second principal component (200, 230) to either gravitational or inertial forces is a relative rotation of the second principal component (200, 230) in relation to the first principal component (370, 380); the first principal component (370, 380) being fixedly attached to the moving host structure (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.