Switching device arrangement

Patent metadata

Field	Value
Publication number	US-9748059-B2
Application number	US-201414761703-A
Country	US
Kind code	B2
Filing date	Jan 7, 2014
Priority date	Jan 22, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A switching device arrangement has a first contact set and a second contact set. The first contact set includes a first electric arc contact element and a first nominal current contact element. The first nominal current contact element can be moved relative to the first electric arc contact element. A first transmission is introduced in a kinematic chain in order to generate a relative movement of the first nominal current contact element and the first electric arc contact element. The first transmission is operationally connected between a stationary counter bearing and the first electric arc contact piece.

First claim

The invention claimed is:

1. A switching device arrangement, comprising:
a first contact set and a second contact set, said first contact set being disposed for movement relative to said second contact set in order to produce a switching contact between respective contacts;
said first contact set having an arcing contact piece and a nominal current contact piece movably disposed relative to one another;
a kinematic chain connected to said nominal current contact piece configured to impress a movement onto said nominal current contact piece;
a stationary counter bearing; and
a gearing forming an operative connection between said stationary counter bearing and said arcing contact piece, wherein a relative movement is effected between said nominal current contact piece and said arcing contact piece via said gearing;
said stationary counter bearing being coupled to said gearing via a slotted guide path.

2. The switching device arrangement according to claim 1 , wherein said stationary counter bearing is configured to control a transmission behavior of said gearing.

3. The switching device arrangement according to claim 1 , wherein said gearing is mounted on said first contact set.

4. The switching device arrangement according to claim 3 , wherein said gearing is mounted on said nominal current contact piece.

5. The switching device arrangement according to claim 1 , wherein said nominal current contact piece is mounted movably in relation to said stationary counter bearing.

6. The switching device arrangement according to claim 1 , wherein said gearing includes a control element guided on said stationary counter bearing.

7. The switching device arrangement according to claim 1 , wherein the gearing comprises a pivot element pivotally attached to said nominal current contact piece.

8. The switching device arrangement according to claim 1 , wherein said gearing comprises a lever arrangement.

9. The switching device arrangement according to claim 1 , wherein said gearing is a first gearing and said kinematic chain comprises a second gearing for coupling in a movement at said nominal current contact piece.

10. The switching device arrangement according to claim 9 , wherein said second gearing is stationarily mounted.

11. The switching device arrangement according to claim 1 , wherein said kinematic chain includes an electrically insulating transmission element.

12. The switching device arrangement according to claim 11 , wherein said electrically insulating transmission element is an insulating nozzle protruding into a clearance between the contacts.

13. The switching device arrangement according to claim 1 , which comprises a common drive apparatus commonly driving said first and second contact sets.

14. The switching device arrangement according to claim 1 , wherein said gearing is a first gearing and said kinematic chain includes a second gearing, and wherein said first gearing and said second gearing are arranged in succession in a direction of a flow of force.

15. The switching device arrangement according to claim 14 , wherein said second gearing includes a stationarily mounted rotation element.

16. The switching device arrangement according to claim 15 , wherein said rotation element is a gearwheel.

17. The switching device arrangement according to claim 15 , wherein said rotation element is a pivot lever.

18. The switching device arrangement according to claim 14 , wherein one of said first and second gearings is configured to convert a driving movement into an oppositely directed driven movement and a respectively other gearing is configured to amplify the oppositely directed movement.

19. The switching device arrangement according to claim 14 , wherein said second gearing converts the driving movement into the oppositely directed driven movement and said first gearing amplifies the oppositely directed movement.

Assignees

• Siemens Ag

Inventors

• Cernat Radu-Marian
• Krehnke Martin
• Lehmann Volker
• Loebner Friedrich
• Nowakowski Andrzej

Classifications

• H01H33/06

  Insulating body insertable between contacts · CPC title

• H01H33/123 Primary

  in which the auxiliary contact pivots on the main contact-arm and performs a delayed and accelerated movement · CPC title

• H01H33/245

  using movable field electrodes · CPC title

• H01H33/025 Primary

  Terminal arrangements (for vacuum switches H01H33/6606) · CPC title

• H01H2033/028

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