Electro-magnetic kinetic energy harvesting device using increased magnetic edge area
US7948124B1 · kind B1 · utility
23Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K35/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy harvesting apparatus comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil coupled to the substrate and disposed within the flux gap, wherein the coil and the magnets are coupled to the substrate such that substrate acceleration causes relative motion between the magnets and the coil thereby exposing the coil to a changing magnetic flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.