Back to results
US 6,674,039 B1Granted
Contact arrangement for a vacuum interrupter
AssigneeSiemens Aktiengesellschaft
InventorsJohannes-Gerh Banghard, Klemens Fieberg, Michael Hahn, Werner Hartmann, Roman Renz
Life of this patent
Estimating the term…
Abstract
In a vacuum interrupter for circuit breakers, the aim is to reduce the contact pressure force. The contacts of the vacuum interrupter are configured for this purpose such that there is arranged inside an outer contact region, serving the purpose of arc quenching, an inner contact region which includes a plurality of resilient contact tongues arranged next to one another on a divided circle.
Claims20
A contact arrangement for a vacuum interrupter, comprising:
- at least two contacts, axially movable relative to one another and including mutually facing contact surfaces, wherein each contact includes an inner contact region, provided for switching operating currents, and an outer contact region, which surrounds the inner contact region concentrically and which is provided for interrupting short-circuit currents and which serves as running surface for a rotating arc, and wherein the inner contact region projects axially over the outer contact region and includes a plurality of contact subregions arranged next to one another on a divided circle, each contact subregion being formed by a free end of a resilient contact tongue inclined relative to an axis of the contact arrangement.
Dependencies are inferred from the claim text.