Electrical switch forming a fast-acting circuit breaker
US9418807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H39/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A normally closed electric switch having a sliding assembly that is actuated to open the switch, e.g. by a pyrotechnic gas generator. Prior to actuation, a conductive portion of the sliding assembly (21) is in tight contact with two rings (13a, 14a) that are axially offset on the same axis, belonging respectively to two electrically conductive tabs (13, 14), and after the actuator has been triggered, the upstream tab (13) is separated from the conductive portion of the sliding assembly. According to the invention, sliding assembly comprises a tube split by a slot extending along its entire length, and the conductive portion of the sliding assembly is constituted by all or part of said split tube, the clamping force between the conductive portion and the primary electrically conductive tabs being provided by the resilience of the split tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.