Vacuum circuit breaker having a high current-carrying capacity
US7471495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2007 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jun 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/6613
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The vacuum switching chamber has two contact pieces and is provided with at least one heat pipe for dissipating heat. The heat pipe contains a working medium for dissipating the heat by evaporating the working medium in a section, referred to as the evaporator, of the heat pipe and condensing the working medium in a section, referred to as the condenser, of the heat pipe. Advantageously, the evaporator is in close thermal contact with at least one contact piece, and, in particular, at least part of the evaporator is integrated in the first contact piece or the second contact piece. Advantageously, the condenser has a cooling rib arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.