Vacuum switch having fixed rail terminals on both sides

US8859927B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Mathias Anheuer · Roßtal, DE
• Joerg Dorn · Buttenheim, DE
• Andreas Fartuschnja · Pfaffenhofen an der Ilm, DE
• Thomas Kuebel · Erlangen, DE
• Peter Lell · Moosburg an der Isar, DE
• Andreas Zenkner · Herzogenaurach, DE

Key dates

• Filing date: Nov 10, 2009
• Grant date: Oct 14, 2014
• Expiry date: Jun 22, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H79/00
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The vacuum switch is compact, requires little effort, and provides a reliable current path having a high current-carrying capacity between the terminals of the vacuum switch, particularly at high switch-on speeds. The vacuum switch has a vacuum chamber, in which a vacuum is present and in which a switching contact is arranged. The switching contact includes a fixed contact piece firmly connected to the vacuum chamber and in electrical contact with a fixed contact terminal, and a moving contact piece movably guided relative to the fixed contact piece. The moving contact piece is at a distance to the fixed contact piece in a disconnect position and contacts the latter in a contact position. A drive unit produces a drive movement. A switching mechanism is connected to the drive unit and the moving contact piece and includes a conductor section that is electrically conducting up to the moving contact piece. A connector connects a moving contact terminal electrically to the moving contact piece in the contact position. The connector has a clamping contact, which has an insertion clamping contact piece connected to the conductor section of the switching mechanism and a mating clamping co…