Charging unit for a contactless transfer of electric power as well as a power absorbing device and a charging system
US6781346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jul 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging system is used for contactless transfer of electric power from a charging unit to a mobile unit. The system includes a first substantially U-shaped ferrite core which is operable to be located within the charging unit. The first core includes a base area and two leg areas. Each leg area of the first core includes a pole face. A first winding is arranged on the base area of the first ferrite core. The system also includes a second substantially U-shaped ferrite core which is operable to be located within a mobile unit. The second core includes a base area and two leg areas. Each leg area of the second core includes a pole face. A second winding is arranged on the base area of the second ferrite core. The first ferrite core has larger cross-sectional dimensions than the second ferrite core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.