Stationary contact for an electrical contactor and method for conducting current through same
US6384702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H50/546
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Stationary contact structures for an electrical contactor include a base plate portion, a riser portion and a turnback portion. The riser portion extends substantially perpendicularly from the base plate portion and a stationary contact pad is disposed directly above the riser, reducing the occurrence of mutually opposing flux during closure of movable contacts in the device. A current carrying extension may extend beyond the riser for carrying current during steady state operation. In such case, separate current carrying paths are defined in the stationary contact for transient and steady state operation. The portions of the structure are formed by processes, such as extrusion, which permit the desired geometry to be obtained between the base plate and riser. The turnback portion may descend towards the base plate portion to introduce arcs into an elevated position in a splitter plate stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.