Contactless electricity supply device with foreign object detector
US9553636B2 · kind B2 · utility
4Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2012 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This contactless electricity supply device, which contactlessly performs charging of the battery (28) of a vehicle, is provided with: an electricity transmission coil (12) disposed at a road surface; and an electricity reception coil (22) disposed in the vehicle. A foreign object detection coil (13) is provided to the upper surface of the electricity transmission coil (12), and on the basis of induced voltage arising at the foreign object detection coil (13) during a trial electricity supply, foreign objects between the electricity transmission coil (12) and the electricity reception coil (22) are detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.