Connection device for the connection of a conductor end

Patent metadata

Field	Value
Publication number	US-11322860-B2
Application number	US-201816767031-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Nov 28, 2017
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

A connection device for the connection of a conductor end includes a housing having a slotted link, a busbar section having a slotted link aligned with the housing slotted link, an d clamping spring assembly rotatably connected with the housing and operable between an open position and a contact position with the conductor end. A rotary lever assembly including a rotary lever element is operably connected with the clamping spring assembly. The rotary lever element has a cam section and a control curve section on which the clamping spring assembly slides during movement into the contact position. A clamping device is arranged on the cam section and is retained by the housing and busbar slotted links.

First claim

The invention claimed is:

1. A connection device for connection of a conductor end, comprising
(a) a housing including a link containing a slot;
(b) a busbar arranged in said housing and including a link containing a slot aligned with said slot of said housing link;
(c) a clamping spring assembly rotatably connected with said housing and operable between an open position and a contact position in contact with the conductor end; and
(d) a rotary lever assembly including a rotary lever element mounted in a central section of said housing for rotation about an axis to displace said clamping spring assembly from the open position to the contact position, said rotary lever element including a cam section having a control curve surface on which said clamping spring assembly slides during rotation of said rotary lever element for movement into the contact position, said cam section further including a pin which extends into said housing link slot to guide said rotary lever element during rotation relative to said housing,
said pin being retained within said aligned housing and bushar link slots in a fixed position corresponding with the contact position.

2. The connection device as defined in claim 1 , wherein said busbar link contains a constriction point within said busbar link slot to fix said pin is fixed on said busbar when said clamping spring assembly is in the contact position.

3. The connection device as defined in claim 1 , wherein said rotary lever assembly and said clamping spring assembly have the same direction of rotation during rotation from the open position into the contact position.

4. The connection device as defined in claim 1 , wherein said busbar has a trough-shaped cross section configuration, the conductor end being insertable into said busbar perpendicular to the busbar cross section, said clamping spring assembly being pivoted into said busbar transverse to the conductor insertion direction to press the conductor end in the contact position into the trough-shaped busbar to contact said busbar.

5. The connection device as defined in claim 1 , wherein said clamping spring assembly has an axis of rotation arranged above the conductor end and said rotary lever assembly has an axis of rotation which is arranged above said clamping spring assembly axis of rotation.

6. The connection device as defined in claim 1 , wherein said clamping spring assembly comprises at least one leaf spring having at least one clamping limb configured to engage the conductor end and at least one actuating limb.

7. The connection device as defined in claim 6 , wherein said rotary lever element cam section control curve surface engages an actuating limb of said leaf spring to move said clamping spring assembly into the contact position.

8. The connection device as defined in claim 7 , wherein said rotary lever element further includes an actuating section.

9. The connection device as defined in claim 6 , wherein said at least one clamping limb and said at least one actuating limb of said at least one leaf spring are oriented at an acute angle and are connected by a bending region which bears against a spring carrier.

10. The connection device as defined in claim 9 , wherein said spring carrier is integral with said housing.

11. The connection device as defined in claim 9 , wherein said spring carrier is formed as a separate element from said housing and wherein said clamping spring assembly is preassembled on said spring carrier, said preassembled clamping spring assembly being insertable into the housing with said busbar and clamped to said spring carrier.

12. The connection device as defined in claim 9 , wherein said spring carrier is pivotally arranged in said housing.

13. The connection device as defined in claim 9 , wherein said rotary lever element cam section engages said spring carrier and rotates it together with said clamping spring assembly.

14. The connection device as defined in claim 9 , wherein said spring carrier has a rounded journal section about which said at least one leaf spring is rotated in said bending regions.

15. The connection device as defined in claim 6 , wherein said clamping spring assembly comprises two leaf springs laid inside one another and having bending regions positioned inside one another with the same axis of rotation.

16. The connection device as defined in claim 15 , wherein said actuating limbs and said clamping limbs of said leaf springs are of different lengths.

17. The connection device as defined in claim 15 , wherein said actuating limbs include elbows at the free ends thereof which slide on said control curve.

Assignees

• Weidmueller Interface Gmbh & Co Kg

Inventors

• Stjepanovic Karlo
• Fehling Stephan
• Classen Constantin
• Waldhoff Marco

Classifications

• H01R4/483 Primary

  Pivoting arrangements, e.g. lever pushing on the spring · CPC title

• H01R4/485

  Single busbar common to multiple springs · CPC title

• H01R4/4837

  Single arrangement activating multiple springs · CPC title

• H01R4/4821

  Single-blade spring · CPC title

• H01R11/09

  the connecting locations being identical · CPC title