Flux concentrator for an inductive power transfer system
US5821638A · kind A · utility
85Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | May 16, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flux concentrator 1300 for an inductive power transfer system is made up from rectangular fingers 1301 of ferrite material held in close contact by compression means to form a large shock resistant core. The fingers are positioned at right angles to a primary conductor 1312 to concentrate the horizontal component of the magnetic flux through the flux concentrator. The fingers include bridge sections 1309 adapted to support pick-up coil windings 1307. The flux concentrator is covered by a conducting sheet of aluminum 1311 on the side of the magnetic core far away from the source of magnetic flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.