Power receiving device, and electronic apparatus and non-contact charging system using the same
US8232764B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2007 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Oct 23, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic apparatus (1) includes a power receiving device (2) and an electronic apparatus main body (3). The power receiving device (2) includes a power receiving coil (11) having a spiral coil, a rectifier (12), and a secondary battery (13). The electronic apparatus main body (3) includes an electronic device (14) and a circuit board (15). A magnetic foil (16) is arranged in at least one position between the spiral coil (11) and the secondary battery (13), the rectifier (12), the electronic device (14), or the circuit board (15). The magnetic foil (16) has a μr′·t value expressed as the product of the real component μr′ of relative permeability and the plate thickness t of 30000 or larger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.