Locking apparatus for a circuit breaker

Patent metadata

Field	Value
Publication number	US-10211002-B2
Application number	US-201715620877-A
Country	US
Kind code	B2
Filing date	Jun 13, 2017
Priority date	Jun 14, 2016
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

A locking apparatus for a circuit breaker includes a locking pin including a main body; a rotatably or displaceably mounted definition tip; and a guide including a mating contour. In an embodiment, the locking pin is movably mounted within the guide. The definition tip is in alignment with the locking pin in a first position, such that the locking pin together, with the definition tip, is movable through the guide. Further, the definition tip cannot be moved through the guide in a second position, owing to the deflection of the rotatably and displaceably mounted definition tip of the locking pin.

First claim

What is claimed is:

1. A locking apparatus for a circuit breaker, comprising:
a locking pin including a main body and a rotatably or displaceably mounted definition tip; and
a guide including a mating contour,
the locking pin being movably mounted within the guide,
the rotatably or displaceably mounted definition tip being in alignment with the locking pin in a first position, such that the locking pin, together with the rotatably or displaceably mounted definition tip, is movable through the guide, and
the rotatably or displaceably mounted definition tip being immovable through the guide in a second position owing to deflection of the rotatably or displaceably mounted definition tip of the locking pin, wherein the rotatably or displaceably mounted definition tip is movable to the second position when only the main body, and not the rotatably or displaceably mounted definition tip, is located within the guide.

2. The locking apparatus of claim 1 , wherein, in the second position, the locking pin is blocked in the guide by contact between the rotatably or displaceably mounted definition tip and a mating contour of the guide.

3. The locking apparatus of claim 2 , wherein the rotatably or displaceably mounted definition tip is of cylindrical design in the first position.

4. The locking apparatus of claim 2 , wherein the rotatably or displaceably mounted definition tip is of a conical design on a side averted from the main body.

5. The locking apparatus of claim 1 , wherein the rotatably or displaceably mounted definition tip is of cylindrical design in the first position.

6. The locking apparatus of claim 5 , wherein the rotatably or displaceably mounted definition tip is of a conical design on a side averted from the main body.

7. The locking apparatus of claim 1 , wherein the rotatably or displaceably mounted definition tip is of a conical design on a side averted from the main body.

8. An electrical switch comprising:
a switching mechanism including a moving switching element; and
the locking apparatus of claim 1 ,
the moving switching element including a definition disk to interact with the locking apparatus such that, in an event of locking, the definition disk is configured to move the rotatably or displaceably mounted definition tip of the locking apparatus to the second position.

9. The electrical switch of claim 8 , wherein the moving switching element is a moving electrical contact or a switching shaft.

10. The electrical switch of claim 9 , wherein the moving switching element cannot be closed in the second position of the rotatably or displaceably mounted definition tip.

11. The electrical switch of claim 9 , wherein the rotatably or displaceably mounted definition tip, in the second position, is arranged between the moving switching element and the mating contour of the guide.

12. The electrical switch of claim 8 , wherein the moving switching element cannot be closed in the second position of the rotatably or displaceably mounted definition tip.

13. The electrical switch of claim 8 , wherein the rotatably or displaceably mounted definition tip, in the second position, is arranged between the moving switching element and the mating contour of the guide.

14. The electrical switch of claim 8 , wherein the moving switching element cannot be closed in the second position of the rotatably or displaceably mounted definition tip since the locking pin is blocked in the guide by the contact between the rotatably or displaceably mounted definition tip and the mating contour of the guide.

15. An apparatus, comprising:
a first electrical switch;
a second electrical switch, at least one of the first electrical switch and the second electrical switch being the electrical switch of claim 8 ; and
a rocker, connecting a first locking pin of the first electrical switch to a second locking pin of the second electrical switch, to ensure that only one of a first rotatably or displaceably mounted definition tip of the first electrical switch and a second rotatably or displaceably mounted definition tip of the second electrical switch is movable to a second position.

16. An apparatus, comprising:
a first electrical switch;
a second electrical switch, each of the first electrical switch and the second electrical switch being the electrical switch of claim 8 ; and
a rocker, connecting a first locking pin of the first electrical switch to a second locking pin of the second electrical switch, to ensure that only one of a first rotatably or displaceably mounted definition tip of the first electrical switch and a second rotatably or displaceably mounted definition tip of the second electrical switch is movable to a second position.

Assignees

• Siemens Ag

Inventors

• Hofmann Michael

Classifications

• H01H2300/018

  Application transfer; between utility and emergency power supply · CPC title

• H01H9/286

  making use of a removable locking part acting directly on the operating part (H01H9/281 takes precedence) · CPC title

• H01H9/26 Primary

  for interlocking two or more switches ({H01H13/568 takes precedence;} by a detachable member H01H9/28 {; for electromagnetic relays H01H50/323}) · CPC title

• H01H9/285 Primary

  Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool · CPC title