Electrical switch having a direct armature coupling

Patent metadata

Field	Value
Publication number	US-10607799-B2
Application number	US-201715728022-A
Country	US
Kind code	B2
Filing date	Oct 9, 2017
Priority date	Oct 7, 2016
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

An electrical switch comprises a coil assembly, an armature, and a contact assembly. The armature is rotatable about an axis of rotation and is driven by the coil assembly. The contact assembly has a contact spring directly connected to the armature.

First claim

What is claimed is:

1. An electrical switch, comprising:
a coil assembly;
an armature rotatable about an axis of rotation and driven by the coil assembly; and
a contact assembly having a contact spring directly connected to the armature, the contact spring has a protruding limb connected to the armature and the contact spring having the limb is integrally formed in a single piece.

2. The electrical switch of claim 1 , wherein the armature has an extension elongated to form a bracket.

3. The electrical switch of claim 2 , wherein the bracket has a first stop disposed on an end of the bracket distal from the armature, the first stop limiting movement of the limb in a direction away from the armature.

4. The electrical switch of claim 3 , wherein the bracket has a second stop limiting movement of the limb in a direction towards the armature.

5. The electrical switch of claim 4 , wherein the second stop is disposed between the first stop and the armature.

6. The electrical switch of claim 4 , wherein a distance between the first stop and the second stop in a longitudinal direction of the bracket is larger than a thickness of the limb measured along the longitudinal direction of the bracket.

7. The electrical switch of claim 2 , wherein the bracket is connected to the contact spring.

8. The electrical switch of claim 7 , wherein the bracket is oriented substantially parallel to the contact spring.

9. The electrical switch of claim 7 , wherein the bracket is inserted into an opening of the contact spring.

10. The electrical switch of claim 1 , wherein the limb extends from the contact spring at a right angle.

11. The electrical switch of claim 1 , wherein the limb extends from the contact spring at a bending point.

12. The electrical switch of claim 11 , wherein the limb is connected to the armature at an end of the limb distal from the bending point.

13. The electrical switch of claim 1 , wherein the contact spring has a switching direction and the armature has a direction of rotation.

14. The electrical switch of claim 13 , wherein the switching direction and the direction of rotation are in a common plane perpendicular to the axis of rotation.

15. The electrical switch of claim 1 , wherein the contact spring is a spring pack including a plurality of springs.

16. The electrical switch of claim 15 , wherein the limb is disposed on an overstroke spring of the spring pack.

17. The electrical switch of claim 16 , wherein the limb is an elongation of the overstroke spring.

18. The electrical switch of claim 1 , wherein the armature is bistable.

19. An electrical switch, comprising:
a coil assembly;
an armature rotatable about an axis of rotation and driven by the coil assembly, the armature has an extension elongated to form a bracket, the bracket has a first stop disposed on an end of the bracket distal from the armature and a second stop; and
a contact assembly having a contact spring directly connected to the armature, the contact spring has a protruding limb connected to the armature, the first stop limiting movement of the limb in a direction away from the armature and the second stop limiting movement of the limb in a direction towards the armature.

20. The electrical switch of claim 19 , wherein the second stop is disposed between the first stop and the armature.

21. The electrical switch of claim 19 , wherein a distance between the first stop and the second stop in a longitudinal direction of the bracket is larger than a thickness of the limb measured along the longitudinal direction of the bracket.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Kramer Uwe
• Kroeker Matthias
• Schertler Katrin
• Haehnel Thomas

Classifications

• H01H50/58 Primary

  Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature · CPC title

• H01H3/38

  using spring or other flexible shaft coupling · CPC title

• H01H50/64

  Driving arrangements between movable part of magnetic circuit and contact (structurally associated with contact spring sets H01H50/58) · CPC title

• H01H3/28 Primary

  using electromagnet (for storing energy in a spring motor H01H3/30; for operating relays H01H45/00) · CPC title

• H01H50/60 Primary

  moving contact being rigidly combined with movable part of magnetic circuit {(for polarised relays H01H51/2254, H01H51/2281)} · CPC title