Power transmission device
US11863042B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Nov 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power transmission device includes an annular transmission unit having an annular first magnetic core and a transmission coil and an annular reception unit having an annular second magnetic core and a reception coil. The transmission unit and the reception unit are arranged to face each other. The power transmission device transmits power from the transmission unit to the reception unit. The transmission unit and the reception unit are relatively rotatable about a rotation axis passing through a cavity inside the transmission unit and a cavity inside the reception unit, the first magnetic core has a structure divided into a plurality of first split cores in a circumferential direction, and the second magnetic core has a structure divided into a plurality of second split cores in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.