Contactor having self-protection means against the effect of the forces of repulsion between the contacts
US4513270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1982 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Nov 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H77/101
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contactor capable of having a very high breaking power comprises a movable contact carrier bridge (3) having a central part in the form of a blade (3c) and conducting J-shaped pieces (2a-2b) supporting fixed contacts. A non-magnetic blade bent in the form of a U is mounted slidable inside a hollow movable insulating contact holder (1) and guides and holds at its upper end a magnetic plate (8) cooperating with said blade (3c) and forming an air-gap with another U-shaped magnetic piece (6), disposed between the legs of the bent blade (5) and integral (at 7) with the contact holder (1). A contact pressure spring (4) bears on the basis of the U-shaped magnetic piece (6) and on the bottom of the bent blade (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.