Magnetic coupling device and wireless power transmission system using the same
US10811186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Oct 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a magnetic coupling device that includes first and second coil units that transmit power or signals with each other by wireless. Each of the first and second coil units includes a first coil and a second coil. The first coil of the first coil unit and the first coil of the second coil unit are magnetically coupled to each other. The second coil of the first coil unit and the second coil of the second coil unit are magnetically coupled to each other. At least one of the first and second coil units has an electromagnetic shielding member disposed at a position preventing magnetic coupling between the first and second coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.