Devices and methods for activating circuit breaker accessories

Patent metadata

Field	Value
Publication number	US-9679709-B2
Application number	US-201214373677-A
Country	US
Kind code	B2
Filing date	May 2, 2012
Priority date	May 2, 2012
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A device is provided for use with a circuit breaker that includes an actuator adapted to move in a first direction in response to an over-current and/or a short circuit condition, and a circuit breaker accessory that includes an actuation mechanism. The device includes a linkage having a first end adapted to be coupled to the actuator and a second end adapted to be disposed adjacent the actuation mechanism. Movement of the actuator in the first direction allows the linkage to move in a second direction different from the first direction from a first position to a second position to activate the circuit breaker accessory. Numerous other aspects are provided.

First claim

The invention claimed is:

1. A device for use with a circuit breaker and a circuit breaker accessory, the circuit breaker including an actuator configured to move in a first direction in response to at least one of an over-current and a short circuit condition and the circuit breaker accessory including an actuation mechanism, the device comprising:
a linkage including a first end configured to be coupled to the actuator and a second end configured to be disposed adjacent the actuation mechanism,
a first lever configured to be disposed adjacent the actuator; and
a second lever coupled to the first lever and coupled to the first end of the linkage;
wherein movement of the actuator in the first direction allows the linkage to move in a linear second direction different from the first direction, from a first position to a second position, to activate the circuit breaker accessory; and
wherein when the linkage moves from the first position to the second position, the second lever rotates in a third direction, and the first lever rotates in a fourth direction.

2. The device of claim 1 , wherein:
when the linkage is in the first position, the second end does not contact the actuation mechanism; and
when the linkage is in the second position, the second end contacts the actuation mechanism.

3. The device of claim 2 , wherein when the linkage is in the second position, the second end depresses the actuation mechanism to activate the circuit breaker accessory.

4. The device of claim 1 , wherein the second end of the linkage comprises a surface configured to make engaging contact with the actuation mechanism.

5. The device of claim 1 , further comprising:
a spring coupled to the second end of the linkage, wherein the spring is configured to bias the second end of the linkage toward the actuation mechanism.

6. The device of claim 1 , wherein the second end of the linkage is configured to be disposed adjacent a plurality of actuation mechanisms of a plurality of circuit breaker accessories.

7. The device of claim 1 , wherein the device is configured to be used with a trip alarm switch accessory.

8. The device of claim 1 , wherein the actuation mechanism comprises one or more of a switch, a push-button, a plunger, a micro-switch, a rotary arm, and a cam.

9. A modular accessory for use with a circuit breaker, the circuit breaker including an actuator configured to move in a first direction in response to at least one of an over-current and a short circuit condition, the modular accessory comprising:
an actuation mechanism;
a linkage including a first end configured to be coupled to the actuator and a second end disposed adjacent the actuation mechanism, and
a spring coupled to the second end of the linkage, wherein the spring is configured to bias the second end of the linkage toward the actuation mechanism;
wherein movement of the actuator in the first direction allows the linkage to move in a linear second direction different from the first direction, from a first position to a second position, to activate the modular accessory.

10. The modular accessory of claim 9 , wherein:
when the linkage is in the first position, the second end does not contact the actuation mechanism; and
when the linkage is in the second position, the second end contacts the actuation mechanism.

11. The modular accessory of claim 10 , wherein when the linkage is in the second position, the second end depresses the actuation mechanism to activate the circuit breaker accessory.

12. The modular accessory of claim 9 , wherein the second end of the linkage comprises a surface configured to make engaging contact with the actuation mechanism.

13. The modular accessory of claim 9 , further comprising:
a first lever configured to be disposed adjacent the actuator; and a second lever coupled to the first lever and coupled to the first end of the linkage.

14. The modular accessory of claim 13 , wherein when the linkage moves from the first position to the second position, the second lever rotates in a third direction, and the first lever rotates in a fourth direction.

15. The modular accessory of claim 9 , wherein the second end of the linkage is configured to be disposed adjacent a plurality of actuation mechanisms of a plurality of circuit breaker accessories.

16. The modular accessory of claim 9 , further comprising:
a trip alarm switch accessory.

17. The modular accessory of claim 9 , wherein the actuation mechanism comprises one or more of a switch, a push-button, a plunger, a micro-switch, a rotary arm, and a cam.

18. A circuit breaker comprising:
an actuator configured to move in a first direction in response to at least one of an over-current and a short circuit condition;
a circuit breaker accessory including an actuation mechanism;
a linkage including a first end coupled to the actuator and a second end disposed adjacent the actuation mechanism,
a first lever configured to be disposed adjacent the actuator; and
a second lever coupled to the first lever and coupled to the first end of the linkage;
wherein movement of the actuator in the first direction allows the linkage to move in a linear second direction different from the first direction, from a first position to a second position, to activate the circuit breaker accessory, and
wherein when the linkage moves from the first position to the second position, the second lever rotates in a third direction, and the first lever rotates in a fourth direction.

19. The circuit breaker of claim 18 , wherein:
when the linkage is in the first position, the second end does not contact the actuation mechanism; and
when the linkage is in the second position, the second end contacts the actuation mechanism.

20. The circuit breaker of claim 19 , wherein when the linkage is in the second position, the second end depresses the actuation mechanism to activate the circuit breaker accessory.

21. The circuit breaker of claim 18 , wherein the second end of the linkage comprises a surface configured to make engaging contact with the actuation mechanism.

22. The circuit breaker of claim 18 , further comprising:
a spring coupled to the second end of the linkage, wherein the spring biases the second end of the linkage toward the actuation mechanism.

23. The circuit breaker of claim 18 , wherein the second end of the linkage is disposed adjacent a plurality of actuation mechanisms of a plurality of circuit breaker accessories.

24. The circuit breaker of claim 18 , wherein the circuit breaker accessory comprises a trip alarm switch accessory.

25. The circuit breaker of claim 18 , wherein the actuation mechanism comprises one or more of a switch, a push-button, a plunger, a micro-switch, a rotary arm, and a cam.

26. A method for use with a circuit breaker and a circuit breaker accessory, the circuit breaker including an actuator configured to move in a first direction in response to at least one of an over-current and a short circuit condition, the accessory including an actuation mechanism, the method comprising:
providing a linkage including a first end coupled to the actuator and a second end configured to be disposed adjacent the actuation mechanism;
moving the linkage in a linear second direction different from the first direction, from a first position to a second position, to activate the circuit breaker accessory in response to movement of the actuator in the first dir

Assignees

• Rojko Jan
• Siemens Ag

Inventors

• Rojko Jan

Classifications

• H01H71/10 Primary

  Operating or release mechanisms · CPC title

• H01H3/46

  using rod or lever linkage, e.g. toggle · CPC title

• H01H89/00

  Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass · CPC title

• H01H2235/01

  Spiral spring · CPC title

• H01H3/04 Primary

  Levers (tumblers H01H23/14) · CPC title