Noncontact power feeding apparatus and noncontact power feeding method
US9525302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
As an aspect of the present invention, a noncontact power feeding apparatus includes: a power transmission resonator; and a power reception resonator configured to be magnetically coupled with the power transmission resonator by magnetic field resonance. The power transmission resonator is magnetically coupled with the power reception resonator by the magnetic field resonance, whereby electric power is supplied from an electric power source to the power reception resonator through the power transmission resonator. One of the power transmission resonator and the power reception resonator has a predetermined single resonant frequency, and the other one of the power transmission resonator and the power reception resonator has multiple resonant frequencies inclusive of the predetermined single resonant frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.