Connection apparatus usable in vacuum interrupter

Patent metadata

Field	Value
Publication number	US-9570826-B2
Application number	US-201414562837-A
Country	US
Kind code	B2
Filing date	Dec 8, 2014
Priority date	Dec 8, 2014
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

An improved connection apparatus that meets these and other needs includes, in one embodiment, an approximately J-shaped flexible conductor having at its end an opening that receives therethrough a portion of the shank for mechanical and electrical connection therebetween. The conductor further includes a hole formed therein at approximately its midpoint that receives therein, in a movable and non-contacting fashion, another portion of the elongated shank. In another pair of embodiments, another connection apparatus includes a flexible conductor that is co-formed with a rigid conductor to form a single piece unitary element. The free end of the flexible conductor is connected with the movable shank, and the rigid conductor is connectable with the primary conductor of the circuit. By providing the flexible conductor and the rigid conductor as a co-formed unit, a detachable fastener need not be employed to provide a connection therebetween, which reduces heat generation.

First claim

What is claimed is:

1. A connection apparatus structured to be electrically connected between a movable conductor of a circuit interrupter and another conductor that is stationary, the circuit interrupter being situated on an insulator, the movable conductor having an elongated shank that is structured to be connected with an operating mechanism which is structured to move the shank to change the state of the circuit interrupter, at least a portion of the insulator being situated generally between the shank and the another conductor, the connection apparatus comprising:
an elongated and flexible conductor formed of a braid of conductive material, at least a portion of the elongated and flexible conductor being structured to be received through an aperture formed in the insulator;
a first end of the elongated and flexible conductor forming a first connecter having formed therein an opening that is structured to receive therein a portion of the shank and to be electrically connected with the portion of the shank; and
a second connector connected with the elongated and flexible conductor at a second end thereof and being structured to be electrically connected with the another conductor, the second connector being of an approximately plate-like shape whose major dimensions extend in a direction generally transverse to the longitudinal extent of the elongated and flexible conductor, the second connector being structured to be situated against the insulator when the elongated and flexible conductor is received through the aperture.

2. The connection apparatus of claim 1 wherein the elongated and flexible conductor and the second connector are co-formed as a single piece structure.

3. The connection apparatus of claim 2 wherein the second connector is a solid piece of conductive material, and wherein the elongated and flexible conductor and the second connector are conductively affixed to one another to form the single piece structure.

4. The connection apparatus of claim 1 wherein the second connector has a number of holes formed therein, at least some of the holes of the number of holes being structured to receive fasteners therein that fasten the second connector to the insulator.

5. The connection apparatus of claim 4 wherein at least one hole of the number of holes is threaded and is structured to receive therein a fastener that connects the another conductor to the second connector.

6. The connection apparatus of claim 5 wherein the at least some of the holes each have a shoulder formed therein that is structured to receive against it a portion of a fastener that fastens the second connector to the insulator.

7. The connection apparatus of claim 4 wherein the at least some of the holes are thru-holes that are each structured to receive therein a fastener that extends between the another conductor and the insulator and that connects the another conductor to the insulator with the second connector being interposed therebetween.

8. An interruption apparatus comprising the connection apparatus of claim 1 and being structured to be connected with a primary electrical conductor that is stationary and with an operating mechanism, the interruption apparatus further comprising:
a circuit interrupter having a movable conductor that includes an elongated shank which is structured to be connected with the operating mechanism and that is structured to be movable by the operating mechanism to change the state of the circuit interrupter;
an insulator upon which the circuit interrupter is situated, the insulator having a wall within which an aperture is formed, at least a portion of the elongated and flexible conductor being received through the aperture, the shank being situated at a first side of the wall, the second conductor being situated at a second side of the wall opposite the first side; and
a portion of the shank being received in the opening and being electrically connected with the elongated and flexible conductor.

9. The interruption apparatus of claim 8 wherein the second connector has a number of holes formed therein, at least some of the holes being are structured to receive fasteners therein that fasten the second connector to the insulator.

10. The interruption apparatus of claim 8 wherein at least one hole of the number of holes is threaded and is structured to receive therein a fastener that connects the another conductor to the second connector.

11. The interruption apparatus of claim 10 wherein the insulator further comprises a number of fasteners, and wherein the at least some of the holes each have a shoulder formed therein that has received against it a portion of a fastener of the number of fasteners that fastens the second connector to the insulator.

12. The interruption apparatus of claim 8 wherein the at least some of the holes are thru-holes that are each structured to receive therein a fastener that extends between the another conductor and the insulator and that connects the another conductor to the insulator with the second connector being interposed therebetween.

Assignees

• Eaton Corp

Inventors

• Chen qing qi
• Bao Li Hua
• Wang Yi Feng
• Tian Yudong

Classifications

• H01H33/025 Primary

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

• H01R13/02 Primary

  Contact members · CPC title

• H01H33/666

  Operating arrangements · CPC title

• H01H1/5822

  Flexible connections between movable contact and terminal · CPC title

• H01H27/04

  Insulating plug or plate inserted between normally closed contacts · CPC title