Axial magnetic field coil for vacuum interrupter
US9640353B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Sep 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H50/443
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contact assembly for use in a vacuum interrupter includes a contact disc of a first electrically conductive material, a coil, and a contact support. The coil is made from a second electrically conductive material and includes multiple helical sections that are oriented axially with respect to a common central axis. Each of the helical sections includes a proximal end and a distal end such that each of the helical sections is connected at the proximal end to a base made from the second electrically conductive material and is connected at the distal end to the contact disc. The contact support is centered axially within the coil and extends from the base to the contact disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.