Core assembly for wireless power transmitting device and wireless power transmitting device having the same
US9906274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2012 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jan 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00308
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A core assembly used for a wireless power transmitting device and a wireless power transmitting device having the same. The core assembly for the wireless power transmitting device includes: a main coil disposed at a first level; an auxiliary coil disposed at a lower side of the main coil such that the auxiliary coil is located at a second level lower than the first level, and including a first sub coil and a second sub coil, which respectively have a portion overlapped with the main coil and respectively have a size smaller than the main coil; and a core of a magnetic substance configured to accommodate the main coil and the auxiliary coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.