Pyrotechnic circuit breaker with improved cut of the blade
US10468216B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 8, 2015 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Sep 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pyrotechnic circuit breaker, comprising a body, an igniter, a bus bar, and a piston which comprises a cutting edge and is movable along a normal direction to cut a portion of the bus bar, thereby separating the bus bar to break a circuit, wherein the cutting edge of the piston is stepped so that the portion of the bus bar is cut sequentially, in at least two successive cutting operations, characterized in that the bus bar comprises a breakable portion configured to be cut by the cutting edge of the piston, wherein said breakable portion comprises slots in order to divide the breakable portion into multiple sub-portions that are adapted to be cut sequentially by the stepped cutting edge of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.