Electromagnetic energy converter
US7786887B2 · kind B2 · utility
3Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jun 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/076
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An autonomous-power radio device including an electromagnetic energy transducer having a permanent magnet (1), a soft-magnetic element (9), an electrical coil (6), and stop points (8a-8d). The electrical coil surrounds a part of the magnetic circuit, wherein the permanent magnet (1) and said soft-magnetic element (9) are arranged to form a magnetic circuit with a first flux direction. At least one of the soft-magnetic element (9) and the permanent magnet (1) is mounted for rotary movement about an axis (4) with respect to the other. End points of the rotary movement are formed by the stop points (8a-8d).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.