Switch contact chamber seal

Patent metadata

Field	Value
Publication number	US-9911558-B2
Application number	US-201514944824-A
Country	US
Kind code	B2
Filing date	Nov 18, 2015
Priority date	May 31, 2013
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

An electrical switch element is disclosed. The electrical switch element includes a housing having a switch chamber, an opening to the switch chamber, electrical switch contacts arranged in the switch chamber, and at least one positive-locking counter-element extending at least partially around the opening. The electrical switch element also includes a cover having at least one positive-locking element engaging the at least one positive-locking counter-element, the cover extending over the opening.

First claim

What is claimed is:

1. An electrical switch element, comprising:
a housing having a switch chamber, an opening to the switch chamber, electrical switch contacts arranged in the switch chamber, and a positive-locking counter-element extending completely around the opening; and
a cover having a positive-locking element extending completely around the opening and engaging the at least one positive-locking counter-element, the positive-locking element is a lip extending perpendicularly with respect to the cover and having a bead formed at a free end of the lip and a rib contour connecting the bead to the cover, a thickness of the rib contour is less than a thickness of the bead, the cover extending over the opening and the rib contour spaced apart from the positive-locking counter-element.

2. The electrical switch element according to claim 1 , wherein the positive-locking element engages the positive-locking counter-element in a plane of the opening.

3. The electrical switch element according to claim 2 , wherein the positive-locking element is disposed on an outer edge of the cover.

4. The electrical switch according to claim 3 , wherein the positive-locking counter-element is formed as a recess.

5. The electrical switch according to claim 4 , wherein the positive-locking counter-element is spaced apart from an edge of the opening.

6. The electrical switch according to claim 1 , wherein the bead abuts the positive-locking counter-element.

7. The electrical switch according to claim 1 , wherein the cover has at least one guiding element.

8. The electrical switch according to claim 7 , wherein the at least one guiding element projects beyond the positive-locking element.

9. The electrical switch according to claim 8 , wherein the housing has auxiliary guiding means engaging the at least one guiding element.

10. The electrical switch according to claim 1 , further comprising a switch contact subassembly having a switch contact carrier, a retention member, and a shaft.

11. The electrical switch according to claim 10 , wherein the switch contact carrier is disposed within the opening and the shaft protrudes through the cover.

12. The electrical switch according to claim 11 , wherein the cover has at least one guiding element engaging the retention member.

13. The electrical switch according to claim 1 , wherein an upper receiving space is positioned between the rib contour and the positive-locking counter-element, a sealing or an adhesive positioned in the upper free space.

14. An electrical switch element, comprising:
a housing having a switch chamber, an opening to the switch chamber, electrical switch contacts arranged in the switch chamber, and a positive-locking counter-element extending completely around the opening; and
a cover extending over the opening and having
a positive-locking element extending completely around the opening and engaging the at least one positive-locking counter-element, the positive-locking element is a lip extending perpendicularly with respect to the cover and having a bead formed at a free end of the lip, and
a guiding element disposed on the cover within the positive-locking element and projecting beyond the positive-locking element.

15. The electrical switch according to claim 14 , wherein the housing has an auxiliary guiding means engaging the guiding element.

16. The electrical switch according to claim 15 , wherein the housing has a wall surrounding the switch chamber.

17. The electrical switch according to claim 16 , wherein the auxiliary guiding means is positioned on a side of the wall opposite the switch chamber.

18. The electrical switch according to claim 17 , wherein the auxiliary guiding means is a shaft extending into the housing perpendicular to a plane of the opening.

19. The electrical switch according to claim 18 , wherein the wall has a passage communicating between the auxiliary guiding means and the switch chamber.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Haehnel Thomas
• Koetter Albert
• Maranke Christian
• Wagner Rene
• Ziegler Titus

Classifications

• H01H9/042 Primary

  Explosion-proof cases · CPC title

• H01H1/20

  Bridging contacts {(for circuit breakers H01H73/045)} · CPC title

• H01H33/72 Primary

  having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber · CPC title

• H01H73/045

  Bridging contacts · CPC title