Wireless power receiving unit or wireless power transferring unit with guide member providing magnetic permeability transition between a concentrator core and surrounding medium
US8829732B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transferring device, a wireless power transferring unit and a wireless power receiving unit for transferring and receiving power. The power receiving unit includes an induction coil adapted to be subjected to an alternating magnetic field so that an alternating current is induced in the induction coil, a receiving concentrator core adapted to concentrate the magnetic field wherein the receiving concentrator core is surrounded by a medium, and a receiving guide member arranged to provide a smooth transition for the magnetic field between the medium and the concentrator core, and abutting the receiving concentrator core. The receiving guide member has a magnetic permeability in the range between the magnetic permeability of the receiving concentrator core and the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.