Switching arrangement

Patent metadata

Field	Value
Publication number	US-9633806-B2
Application number	US-201314411757-A
Country	US
Kind code	B2
Filing date	Jun 19, 2013
Priority date	Jun 29, 2012
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A switching configuration includes a first switching contact set having a rated current contact piece and an arcing contact piece. The arcing contact piece and the rated current contact piece of the first switching contact set are movable relative to one another through a transmission mechanism. The arcing contact piece is supported by a support element on a contact carrier of the rated current contact piece. The transmission mechanism has a transmission mechanism chassis which is supported, particularly directly, on the contact carrier.

First claim

The invention claimed is:

1. A switching configuration, comprising:
a first switching contact set having a rated current contact piece and an arcing contact piece being movable relative to one another;
said rated current contact piece having a contact carrier with a cavity having an orifice opening, said arcing contact piece protruding into said cavity;
a supporting element supporting said arcing contact piece on said contact carrier; and
a transmission mechanism generating a relative movement between said arcing contact piece and said rated current contact piece, said transmission mechanism having a transmission mechanism chassis supported on said contact carrier;
said transmission mechanism chassis having at least one bearing flank supported directly on and fixed to said contact carrier, said at least one bearing flank spanning said supporting element at a spacing, and said at least one bearing flank including a transverse crosspiece spanning and extending over said orifice opening.

2. The switching configuration according to claim 1 , wherein:
said contact carrier is substantially cylindrical;
said at least one bearing flank includes first and second bearing flanks having front end faces supported on said substantially cylindrical contact carrier; and
said transmission mechanism has moving parts received by a recess formed between said bearing flanks.

3. The switching configuration according to claim 1 , wherein:
said at least one bearing flank includes a plurality of bearing flanks;
a guiding track is disposed on at least one of said bearing flanks; and
a follower element follows said guiding track and is guided by said guiding track.

4. The switching configuration according to claim 1 , wherein said at least one bearing flank includes a plurality of bearing flanks having a recess formed therebetween, and a guiding track for guiding said arcing contact piece is disposed in said recess.

5. The switching configuration according to claim 1 , wherein a movable field control electrode is guided on said at least one bearing flank.

6. The switching configuration according to claim 1 , wherein said at least one bearing flank includes a plurality of bearing flanks extending beyond said transverse crosspiece and beyond said contact carrier.

Assignees

• Siemens Ag

Inventors

• Krehnke Martin
• Loebner Friedrich

Classifications

• H01H33/245

  using movable field electrodes · CPC title

• H01H33/12 Primary

  Auxiliary contacts on to which the arc is transferred from the main contacts (using arcing horns H01H33/20) · CPC title

• H01H2033/028

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

• H01H3/42

  using cam or eccentric · CPC title

• H01H33/7023

  characterised by an insulating tubular gas flow enhancing nozzle (H01H33/7038 takes precedence) · CPC title