Weld resistant contactor
US10176953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Sep 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H5/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electromagnetically controlled actuator of an electrical contactor, switching is done by the actuator with a set of fixed contacts and a set of movable contacts. The movable contacts are carried on a movable contact carrier. The movable contact carrier is coupled to and driven by an armature surrounded by a coil. The armature carries a coupling shaft, and the coupling shaft carries at least part of a bistable coupling mechanism which joins the armature to the movable contact carrier and allows the movable contact carrier and armature to keep the fixed and movable contacts separated when a short circuit current creates a contact welding situation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.