Vacuum switch with a drive device and pole operating unit
US5512724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum switch including at least one vacuum switching tube and a pole operating unit which receives the vacuum switching tube at one of its ends. Each pole operating unit contains a lever arrangement for changing the direction of the operating movement provided by a drive device to the associated vacuum switching tube and a contact force spring. In addition, a connection contact surface for an external conductor is provided. The pole operating unit has a U-shaped carrier with elastically bendable legs. A connection device, also having a U-shaped cross-section, engages outside of the legs of the U-shaped carrier. A counter-bearing for the contact force spring is attached between the legs with when the legs of the carrier are bent. Alternatively, a cast metal connection device provided with cooling ribs can also be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.