Method and apparatus for energy harvesting using rotational energy storage and release
US7626279B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Dec 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy harvester is provided for converting an input force into electrical energy and also allowing for energy to be stored and then released at a later time. The energy harvester includes a receiver, energy collector, converter, and holder, and operates in three stages. The receiver receives the input force and the energy collector is moved by the receiver with an input displacement. The energy collector is then held in a catch position. The input force changes direction, and the energy collector is released by the holder and moves with an output displacement that is different from the input displacement. The converter generates electrical energy from the motion created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.