Interrupter assembly

Patent metadata

Field	Value
Publication number	US-11430622-B2
Application number	US-202117147301-A
Country	US
Kind code	B2
Filing date	Jan 12, 2021
Priority date	Jan 15, 2020
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

It is provided an interrupter assembly for power distribution systems that is improved in terms of at least one of compactness, durability, synchronicity and dielectric withstand.

First claim

The invention claimed is:

1. An interrupter assembly for power distribution systems, the interrupter assembly comprising a drive lever, a linking rod, and an interrupter unit,
wherein the interrupter unit comprises a movable contact and a stationary contact, the movable contact having a stem and being movable along an axis of the movable contact;
wherein the drive lever is adapted for being driven by the linking rod to drive the stem for moving the movable contact,
wherein the linking rod is connected to the drive lever via a linking connection allowing at least a rotation of the linking rod relative to the drive lever,
wherein the drive lever is connected to the stem via a stem connection allowing at least a rotation of the drive lever relative to the stem,
wherein the drive lever is mounted via a revolute joint, the revolute joint allowing a rotation of the drive lever for transmitting a movement of the linking rod to a movement of the stem,
wherein a rotation axis of the linking connection, a rotation axis of the revolute joint, and a rotation axis of the stem connection are parallel to each other,
wherein the linking connection is arranged in an axially intermediate location between the stem connection and the stationary contact, and
wherein the axially intermediate location is defined along the axis of the movable contact.

2. The interrupter assembly according to claim 1 , wherein the drive lever is mounted to a housing via the revolute joint.

3. The interrupter assembly according to claim 2 , further comprising the housing for housing the interrupter assembly.

4. The interrupter assembly according to claim 3 , wherein at least one of the following applies: the housing is manufactured as a single piece and the housing is of a polymer material.

5. The interrupter assembly according to claim 3 , wherein the housing comprises at least one ventilation opening.

6. The interrupter assembly according to claim 3 , wherein the housing comprises at least one from a group comprising an interrupter unit anchoring interface for anchoring the interrupter unit, a driver lever anchoring interface for anchoring the drive lever, a flex conductor anchoring interface for anchoring a flex conductor, and an enclosure anchoring interface for anchoring to an enclosure.

7. The interrupter assembly according to claim 3 , wherein the housing also houses the drive lever, at least part of the linking rod, or both the drive lever and at least part of the linking rod.

8. The interrupter assembly according to claim 2 , wherein the stem connection is less than 30 degrees from a first line passing through the revolute joint when the interrupter unit is in a closed state, wherein the first line is perpendicular to the rotation axis of the revolute joint and perpendicular to the axis of the movable contact.

9. The interrupter assembly according to claim 2 , wherein the interrupter unit is mounted in either a gas insulated breaker or an air insulated breaker.

10. The interrupter assembly according to claim 2 , wherein the interrupter unit is a vacuum interrupter and comprises an interrupter casing for containing a vacuum, or wherein the interrupter unit is a puffer type switch and comprises an interrupter casing for containing insulating gas or air.

11. The interrupter assembly according to claim 2 , wherein at least one of the stem connection and the linking connection is a second revolute joint.

12. The interrupter assembly according to claim 1 , wherein the stem connection is less than 30 degrees from a first line passing through the revolute joint when the interrupter unit is in a closed state, wherein the first line is perpendicular to the rotation axis of the revolute joint and perpendicular to the axis of the movable contact.

13. The interrupter assembly according to claim 1 , wherein the interrupter unit is mounted in either a gas insulated breaker or an air insulated breaker.

14. The interrupter assembly according to claim 1 , wherein the interrupter unit is a vacuum interrupter and comprises an interrupter casing for containing a vacuum, or wherein the interrupter unit is a puffer type switch and comprises an interrupter casing for containing insulating gas or air.

15. The interrupter assembly according to claim 1 , wherein at least one of the stem connection and the linking connection is a second revolute joint.

16. The interrupter assembly according to claim 1 , wherein at least one of the following applies: a first axial length is at least half of a second axial length and the first axial length is less than the second axial length, wherein the first axial length is an axial length between the linking connection and the revolute joint, wherein the second axial length is an axial length of the stem extending outside an interrupter casing when the interrupter unit is in a closed state, and wherein axial length is a length along the axis of the movable contact.

17. The interrupter assembly according to claim 1 , wherein a first drive lever length is less than a second drive lever length, wherein the first drive lever length is a length from the stem connection to the revolute joint, and wherein the second drive lever length is a length from the linking connection to the revolute joint.

18. The interrupter assembly according to claim 1 , further comprising a second interrupter unit and a third interrupter unit, and a second drive lever for the second interrupter unit and a third drive lever the third interrupter unit.

19. The interrupter assembly according to claim 1 , wherein at least one of a group comprising the drive lever, the linking rod, the revolute joint, and the linking connection is/are of a polymer material.

20. The interrupter assembly according to claim 1 , wherein the interrupter assembly is configured for at least one of medium and high-voltage power distribution systems.

Assignees

• Abb Schweiz Ag

Inventors

• Edvardsen Lars
• Espeseth Robert
• Skryten Pål
• Shetiya Ganesh

Classifications

• H01H3/46

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

• H01H33/666 Primary

  Operating arrangements · CPC title

• H01H33/70

  Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid · CPC title

• H01H33/66 Primary

  Vacuum switches · CPC title

• H01H33/66207

  Specific housing details, e.g. sealing, soldering or brazing · CPC title