Arrangement for an electrical switch element with a seal configuration

Patent metadata

Field	Value
Publication number	US-9812274-B2
Application number	US-201514943592-A
Country	US
Kind code	B2
Filing date	Nov 17, 2015
Priority date	May 31, 2013
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

An electrical switch element is disclosed. The electrical switch element has a switch chamber having contacts and an opening, a propulsion element extending through the opening in the switch chamber and having an annular flange, and a seal configuration having an annular protrusion surrounding the opening. The propulsion element is movable within the opening to open or close the contacts, and in an end position of the propulsion element, the annular flange abuts the annular protrusion.

First claim

What is claimed is:

1. An electrical switch element, comprising:
a switch chamber having contacts and an opening formed in an outer wall;
a propulsion element having an annular flange, being movable within the opening and functionally coupled to the contacts; and
a seal configuration having an annular protrusion surrounding the opening, a portion of the annular protrusion protruding from the outer wall into the switch chamber and abutting the annular flange.

2. The electrical switch element according to claim 1 , wherein the annular flange is integrally formed with the propulsion element.

3. The electrical switch element according to claim 1 , wherein the contacts are open in an end position.

4. The electrical switch element according to claim 1 , wherein the annular protrusion is part of the outer wall.

5. The electrical switch element according to claim 4 , wherein the annular flange abuts a surface of the annular protrusion that is inside the switch chamber.

6. The electrical switch element according to claim 5 , wherein the annular protrusion is an elastic material.

7. The electrical switch element according to claim 6 , wherein an annular wall section of the outer wall surrounds the annular protrusion, and a thickness of the annular wall section is less than a thickness of both the annular protrusion and the rest of the outer wall.

8. The electrical switch element according to claim 7 , wherein the annular wall section is an elastic material.

9. The electrical switch element according to claim 6 , wherein a support element abuts a surface of the annular protrusion that is outside the switch chamber.

10. The electrical switch element according to claim 6 , wherein a support element is positioned to define a movement space between the support element and a surface of the annular protrusion that is outside the switch chamber.

11. The electrical switch element according to claim 10 , further comprising an annular secondary sealing element positioned in the movement space.

12. The electrical switch element according to claim 11 , wherein the propulsion element extends through a hole in the secondary sealing element.

13. The electrical switch element according to claim 12 , wherein a diameter of the hole of the secondary sealing element is smaller than a diameter of the opening in the outer wall.

14. The electrical switch element according to claim 13 , wherein a thickness of the annular secondary sealing element is less than a thickness of the movement space.

15. The electrical switch element according to claim 14 , wherein the annular secondary sealing element is movable with respect to the propulsion element within the movement space.

16. The electrical switch element according to claim 15 , wherein the annular secondary sealing element abuts the support element when the propulsion element is in an end position.

17. The electrical switch element according to claim 13 , wherein the secondary sealing element is configured as a rigid press-fit element, held by force in the movement space.

Assignees

• Te Connectivity Germany Gmbh

Inventors

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

Classifications

• H01H50/023 Primary

  Details concerning sealing, e.g. sealing casing with resin · CPC title

• H01H33/04 Primary

  Means for extinguishing or preventing arc between current-carrying parts · CPC title

• H01H50/30

  Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature · CPC title