Electric current switching apparatus having an arc extinguisher with an electromagnet
US6100491A · kind A · utility
5Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric switch has an arc extinguishing mechanism that includes a plurality of splitter plates located adjacent to the switch contacts. An electromagnet coil is connected between one of the contacts and a splitter plate to produce a magnetic field that drives an arc into the extinguishing mechanism. The unique electromagnet coil is formed by a lamination of a plurality of flat open loops of conductive material alternating with layers of insulation. The flat open loops are interconnected to form a helical coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.