Power switch
US4628163A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Aug 7, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power switch includes a fixed contact member 8 having a fixed contact 8A, a movable contact member 6 having a movable contact 6A movable into and out of contact with the fixed contact 8A, a commutation electrode 15 spaced from the movable contact member 6 for receiving an arc 12 generated between the fixed and movable contacts 8A, 6A when they are brought into contact with each other, and a plurality of extinguishing plates 13 for extinguishing the arc 12 transferred to the commutation electrode. The commutation electrode 15 has a first plate 15A extending parallel to the surface of the fixed contact 8A and spaced a prescribed distance from the fixed contact member 8, a second plate 15B extending parallel to the surface of the fixed contact 8A and positioned between the surface 6C of the movable contact member 6 to which no movable contact 6A is joined and the fixed contact member 8 at the time the movable contact 6A and the fixed contact 8A are separated, a third plate 15C connecting the first and second plates 15A, 15B to each other, a fourth plate 15D extending from the second plate 15B in the direction in which the movable contact 6A is separated, and a recess 15E defined in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.