Plug-in combination of appliances for protecting against overvoltages

US7806716B2 · kind B2 · utility

Assignee

• DEHN + SÖHNE GMBH + CO. KG · DE

Inventors

• Peter Zahlmann · Dresden, DE
• Ralph Brocke · Ilmenau, DE
• Edmund Zäuner · Berching, DE
• Martin Strobl · Dresden, DE
• Michael Waffler · Dresden, DE
• Sascha Ludewig · Dresden, DE
• Georg Wittmann · Herzogenaurach, DE
• Stephan Hierl · Dresden, DE
• Florian Gaeck · Freystadt, DE
• Bernhard Krauss · Burgthann, DE
• Jens Ehrler · Dresden, DE

Key dates

• Filing date: Jan 3, 2006
• Grant date: Oct 5, 2010
• Expiry date: Apr 21, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01T4/06
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The invention relates to a plug-in combination of appliances for protecting against overvoltages, said combination of appliances comprising: a socket-type lower part and at least one plug-in module, which can both receive overvoltage protection elements; contact elements and contact counter elements that are respectively arranged in the lower part and in the plug-in module; and complementary guide rails or guide grooves for inserting or pushing-on and fixing the respective plug-in module. According to the invention, functionally separated, mechanical catch or snap-in elements act between the respective plug-in module and the socket-type lower part independently of the forces which hold together the contact elements and the contact counter elements in a positively fixed and/or non-positively fixed manner when the plug-in module is in use. The catch or snap-in function can be cancelled without any mechanical auxiliary means when the respective plug-in module is to be replaced.