Flux concentrator and method of making a magnetic flux concentrator
US8692639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2010 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flux concentrator and method for manufacturing a flux concentrator is provided. The method can include combining powdered soft magnetic material, a binder, a solvent, a internal lubricant; mixing the materials to create a mixture, evaporating the solvent from the mixture, molding the mixture to form a flux concentrator, and curing the flux concentrator. The flux concentrator may be laminated and broken into multiple pieces, which makes the flux concentrator more flexible. Breaking the flux concentrator does not significantly affect the magnetic properties. Since the permeability of the binder is very similar to that of air, adding tiny air gaps between the fractions is not significantly different than adding more binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.