Coupling element for an electric switching device

Patent metadata

Field	Value
Publication number	US-10032581-B2
Application number	US-201515542277-A
Country	US
Kind code	B2
Filing date	Dec 29, 2015
Priority date	Jan 8, 2015
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A coupling element is provided for an electric switching device wherein the coupling element includes a first switching contact for opening and closing an electric contact by a second switch contact. The coupling element has an oblong winding body having two ends that are opposite in the longitudinal direction of the longitudinal axis thereof, wherein the first switch contact is arranged on one end. The coupling element furthermore includes a rotation body through which the winding body extends and that is provided for coupling to a drive to carry out a rotation movement by the drive, wherein the rotation body includes two sides of which one faces one end (of the winding body and the other faces the other end of the winding body.

First claim

The invention claimed is:

1. A coupling element for an electric switching device, the coupling element comprising:
a first switching contact configured for the opening and closing of an electrical contact with a second switching contact;
an oblong winding body having two ends arranged in opposition in a longitudinal direction of a longitudinal axis with the first switching contact arranged at one end; and
a rotation body, through which the winding body extends, the rotation body configured for coupling to a drive to execute a rotary movement by the drive, wherein the rotation body comprises two sides, one side of the two sides facing the one end of the winding body, and another side of the two sides facing another end of the winding body;
wherein the rotation body is rotatably mounted on the winding body, and the winding body is guided in a linear manner, such that the winding body is not rotatable about the longitudinal axis thereof, but is movable in the longitudinal direction relative to the rotation body;
wherein on one or both of the two sides of the rotation body, a plurality of wires are arranged between the rotation body and the winding body such that, by opposing rotary movements of the rotation body, a winding and unwinding of the plurality of wires is caused on the winding body and, as a result, the winding body is moved in the longitudinal direction relative to the rotation body, in order to open and close the electrical contact of the first switching contact with the second switching contact.

2. The coupling element of claim 1 , wherein the rotation body is a disk-shaped body,
wherein both of the two sides are circular, and
wherein the winding body extends through a center of the disk-shaped body.

3. The coupling element of claim 2 , wherein the disk-shaped body comprises a plurality of disks that are sequentially arranged in the longitudinal direction of the winding body.

4. The coupling element of claim 3 , wherein the winding body is of circular cross-section.

5. The coupling element of as claimed in claim 4 , wherein the winding body is a cylindrical bar.

6. The coupling element of claim 1 , wherein on one or both of the two sides of the rotation body, the plurality of wires that are arranged on a respective side of the two sides are attached in each case at one end to the rotation body, and at the other end to the winding body.

7. The coupling element of claim 1 , wherein on one or both of the two sides of the rotation body, the plurality of wires arranged on a respective side of the two sides, in an overhead view, are symmetrically positioned around the winding body on the respective side of the rotation body.

8. The coupling element of claim 1 , wherein, on one or both of the two sides of the rotation body, the plurality of wires arranged on a respective side of the two sides are configured in one or more pairs of wires, and
wherein wires of a respective pair, in an overhead view of the respective side of the two sides of the rotation body, are offset by an angle of 180° around the longitudinal axis of the winding body.

9. The coupling element of claim 1 , wherein, on both sides of the two sides of the rotation body, the plurality of wires are arranged such that, upon a rotary movement of the rotation body in the one direction, the plurality of wires are wound onto the one side and unwound from the other side and, upon a rotary movement of the rotation body in an opposite direction, the plurality of wires are unwound from the one side and wound onto the other side.

10. The coupling element of claim 1 , wherein the winding body is of circular cross-section.

11. The coupling element of claim 10 , wherein the winding body is a cylindrical bar.

12. The coupling element of claim 1 , wherein the winding body, on one or both of the two sides of the rotation body, is formed in each case such that a thickness thereof varies in the longitudinal direction thereof and, increases or decreases in a continuous manner.

13. The coupling element of claim 12 , wherein the thickness of the winding body, on the side of the rotation body that faces the end of the winding body upon which the first switching contact is arranged, increases in the longitudinal direction of the winding body through to the end and the thickness of the winding body, on the second side of the rotation body, decreases in the longitudinal direction of the winding body through to the other end of the winding body.

14. The coupling element of claim 1 , wherein a thickness of the winding body, on the side of the rotation body that faces the end of the winding body upon which the first switching contact is arranged, decreases in the longitudinal direction of the winding body through to the end and the thickness of the winding body, and on the other side of the rotation body, increases in the longitudinal direction of the winding body through to the other end of the winding body.

15. The coupling element of claim 1 , wherein the first switching contact is directly connected to the winding body, at the one end of the winding body, or with an interposition of an elastic element.

16. The coupling element of claim 1 , wherein at least part of the plurality of wires on one or both of the two sides of the rotation body incorporate elastic elements, are of elastic design, or incorporate elastic elements and are of elastic design.

17. An electric switching device comprising:
a first switching contact configured for the opening and closing of an electrical contact with a second switching contact;
an oblong winding body having two ends arranged in opposition in a longitudinal direction of a longitudinal axis with the first switching contact arranged at one end; and
a rotation body, through which the winding body extends, configured for coupling to a drive to execute a rotary movement by the drive, wherein the rotation body comprises two sides, one side of the two sides facing the one end of the winding body, and a second side of the two sides facing another end of the winding body,
wherein the rotation body is rotatably mounted on the winding body, and the winding body is guided in a linear manner, such that the winding body is not rotatable about the longitudinal axis thereof, but is movable in the longitudinal direction relative to the rotation body, and
wherein on one or both of the two sides of the rotation body, a plurality of wires are arranged between the rotation body and the winding body such that, by opposing rotary movements of the rotation body, a winding and unwinding of the plurality of wires is caused on the winding body and, as a result, the winding body is moved in the longitudinal direction thereof relative to the rotation body, in order to open and close the electrical contact of the first switching contact with the second switching contact.

18. The electric switching device of claim 17 , wherein the electric switching device is a vacuum switching tube.

19. The electric switching device of claim 17 claims, wherein the winding body is of circular cross-section.

20. The electric switching device of as claimed in claim 19 , wherein the winding body is a cylindrical bar.

Assignees

• Siemens Ag

Inventors

• Bachmaier Georg
• Gödecke Andreas
• Vontz Thomas
• Zöls Wolfgang

Classifications

• H01H3/36 Primary

  using belt, chain, or cord · CPC title

• H01H33/666 Primary

  Operating arrangements · CPC title

• H01H2205/002

  fixed to operating part · CPC title

• F16H19/0654

  using twisting movement of flexible members to modify the axial length of the mechanism · CPC title

• H01H33/664

  Contacts; Arc-extinguishing means, e.g. arcing rings · CPC title