Electric switching device

Patent metadata

Field	Value
Publication number	US-9666392-B2
Application number	US-201414894715-A
Country	US
Kind code	B2
Filing date	May 2, 2014
Priority date	May 30, 2013
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

An electric switching device contains a first contact piece and a second contact piece. The first contact piece can be driven by a first kinematic chain. The second contact piece can be driven by a second kinematic chain. The electric switching device contains a first switching point and a second switching point, which are electrically connected in series, the first contact piece being associated with the first switching point and the second contact piece with the second switching point.

First claim

The invention claimed is:

1. An electric switching device, comprising:
a first contact piece;
a second contact piece;
a first kinematic chain for driving said first contact piece;
a second kinematic chain for driving of said second contact piece, said first kinematic chain and said second kinematic chain operate in a mutually independent mechanical arrangement independent from each other;
a first switching point being associated with said first contact piece; and
a second switching point connected in series with said first switching point, said second contact piece being associated with said second contact point.

2. The electric switching device according to claim 1 , wherein:
said first switching point is configured with a third contact piece and said first contact piece is moveable in relation to said third contact piece; and
said second switching point is configured with a fourth contact piece, and said second contact piece is moveable in relation to said fourth contact piece.

3. The electric switching device according to claim 1 , wherein said first contact piece and said second contact piece are disposed to move relatively to each other.

4. The electric switching device according to claim 1 , further comprising:
a first drive for driving said first kinematic chain; and
a second drive for driving said second kinematic chain.

5. The electric switching device according to claim 1 , wherein said first drive and said second drive are configured in a diametrically opposite arrangement to an axis of symmetry of the electric switching device.

6. The electric switching device according to claim 5 , wherein opposing movements are communicated by said first and second kinematic chains to said first and second contact pieces.

7. The electric switching device according to claim 1 , wherein said first and second kinematic chains are mechanically separated from each other, wherein movements of said first and second kinematic chains are synchronized.

8. The electric switching device according to claim 1 , wherein said first and second switching points are effected by a connection of said first and second kinematic chains, respectively to said first and second contact pieces, respectively.

Assignees

• Siemens Ag

Inventors

• Gruenler Robert
• Lehmann Volker
• Loebner Friedrich
• Nowakowski Andrzej

Classifications

• H01H3/46

  using rod or lever linkage, e.g. toggle · CPC title

• H01H33/02 Primary

  Details · CPC title

• H01H33/42

  Driving mechanisms · CPC title

• H01H17/26 Primary

  having two flexible operating parts; having a single operating part adapted for pulling at both ends · CPC title

• H01H2033/028

  the cooperating contacts being both actuated simultaneously in opposite directions · CPC title