Rolling element bearing comprising an integrated lundell alternator, and a lundell alternator
US10436255B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Jan 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a rolling element bearing comprising a first bearing ring, a second bearing ring, and a claw-pole alternator that is arranged between said two bearing rings. The claw-pole alternator includes a sequence of magnetic poles running along the first bearing ring, a sequence of magnetically-conductive claws arranged along the circumference of the second bearing ring, and a coil. Together the claws and the poles form magnetic rings that surround said coil. It is essential to the invention that the magnetically-conductive claws are only arranged along some sections of the circumference of said second bearing ring. The coil is arranged in the region of said magnetically-conductive claws. The invention also relates to a claw-pole alternator for installing in a rolling element bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.