Slip ring unit with active cooling system
US11336152B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2019 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jan 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K13/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A slip ring unit for an electrical machine includes a brush holding apparatus including brush boxes configured to receive slip ring brushes. For realizing an effective cooling of the slip ring brushes, the brush holding apparatus has cooling air lines for the targeted supply of cooling air to the slip ring brushes, and cooling air ducts which each have an air inlet opening for collecting cooling air and an air outlet opening for supplying the cooling air which is collected in the cooling air ducts to the slip ring brushes via the cooling air lines which are connected to the air outlet openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.