Switching contact device for electrical switch

The contact device has at least two switch contacts (2) each having a contact carrier (4) with a contact piece (6). At least one of the contacts moves through a sector of a circle about a center of motion (P). Each contact piece is made of a material with regions of different material characteristic...

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Bibliographic Details
Main Authors ANHEUSER, MICHAEL, THILKER, LUTZ
Format Patent
LanguageEnglish
German
Published 30.12.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The contact device has at least two switch contacts (2) each having a contact carrier (4) with a contact piece (6). At least one of the contacts moves through a sector of a circle about a center of motion (P). Each contact piece is made of a material with regions of different material characteristics, so that the combustion resistance of the contact pieces increases with distance from the center of motion (P). The material may be a gradient material. Die Erfindung betrifft eine Schaltkontaktanordnung für ein elektrisches Schaltgerät, insbesondere Schütz oder Leistungsschalter, zur Schaltung unter atmosphärischen Bedingungen. Erfindungsgemäß besteht jedes Kontaktstück der Schaltkontaktanordnung aus einem Werkstoff mit Bereichen unterschiedlich ausgebildeter Materialeigenschaften, derart, daß die Abbrandfestigkeit der Kontaktstücke in stark beanspruchten Bereichen derart erhöht wird, daß ein gleichmäßiger Kontaktabbrand gewährleistet ist.
Bibliography:Application Number: DE1998127667