Electrical switch

US9659729B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Michael Bartz · Berlin, DE
• Frank Ehrlich · Hohen Neuendorf, DE
• Alexander Golub · Berlin, DE
• Andre Matthaei · Bernau, DE
• Caroline Orth · Berlin, DE
• Rico Rademacher · Ludwigsfelde, DE
• Ingolf Reiher · Berlin, DE

Key dates

• Filing date: Sep 24, 2014
• Grant date: May 23, 2017
• Expiry date: Sep 24, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2235/01
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electrical switch includes a gas-insulated tube, a contact system in the tube having fixed and movable contacts, a contact operating element passed out of the tube and movable along an actuation direction for opening and closing the system, and a contact pressure spring movable along the direction, connected to the operating element and an external drive element and disposed in a stationary guide part. The guide part guides the operating element. If the drive element shifts along the direction toward the fixed contact, the spring, operating element and movable contact move toward the fixed contact, closing the system and compressing the spring providing contact pressure force. The spring is in a housing connected to the operating element and movable relative to the guide part. A guide element is attached outside the housing, bears against the guide part, guides the housing and guides the operating element along the direction.