Connection device for the connection of a conductor end

Patent metadata

Field	Value
Publication number	US-11411328-B2
Application number	US-201816767292-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Nov 28, 2017
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A connection device for the connection of a conductor end includes a housing, a busbar section arranged in the housing, and a clamping spring assembly rotatably connected with the housing and operable between an open position and a contact position in contact with the conductor end. A rotary lever assembly is operably connected with the clamping spring assembly. The clamping spring assembly includes at least one clamping spring having clamping and actuating limbs arranged at an acute angle and connected by a bending region bearing against a spring carrier. The clamping spring assembly is preferably preassembled on the spring carrier for insertion in the housing.

First claim

The invention claimed is:

1. A connection device for the connection of a conductor end, comprising
(a) a housing;
(b) a busbar section arranged in said housing;
(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, said clamping spring assembly including at least one clamping spring having at least one clamping limb and at least one actuating limb arranged at an acute angle relative to one another and connected by a bending region bearing against a spring carrier, said clamping spring assembly and said busbar section being insertable together into said housing; and
(d) a rotary lever assembly operatively connected with said clamping spring assembly.

2. A connection device as defined in claim 1 , wherein said rotary lever assembly includes a rotary lever element rotatably mounted rotatably in a central section of said housing and which has an axis of rotation.

3. A connection device as defined in claim 2 , wherein Said rotary lever element includes an actuating section.

4. A connection device as defined in claim 2 , wherein said rotary lever element has a cam section having a control curve surface on which said actuating limb of said clamping spring slides during movement into the contact position, and wherein said cam section includes a projection which extends into a slotted link of said housing and is movable in said slotted link into a fixing position formed in said busbar section.

5. A connection device as defined in claim 4 , wherein said rotary lever element cam section control curve surface engages an actuating limb of said leaf spring and increases in curvature during movement of said clamping spring assembly into the contact position.

6. A connection device as defined in claim 4 , wherein said actuating limbs are elbowed at the free ends thereof which slide on said control curve.

7. A connection device as defined in claim 4 , wherein said clamping device projection comprises a pin which is movable in said slotted link into the fixing position.

8. A connection device as defined in claim 7 , wherein said housing slotted link transitions into a corresponding slotted link in said busbar section, said busbar slotted link including a constriction point at which said pin is secured in position when the contact position is reached, whereby the contact position is securely fixed at said busbar section.

9. A connection device as defined in claim 1 , wherein said clamping spring assembly is arranged above the conductor end and above said busbar section, said axis of rotation of said rotary lever assembly being positioned above an axis of rotation of said clamping spring assembly.

10. A connection device as defined in claim 1 , wherein said spring carrier and clamping spring assembly is connected with one of said housing and said busbar section in a positive and/or non-positive fit by clamping and/or latching.

11. A connection device as defined in claim 1 , wherein said spring carrier contains at least one first slot for mounting one or more of said clamping springs.

12. A connection device as defined in claim 11 , wherein said spring carrier contains a second slot, and further comprising a restoring spring connected with said spring carrier second slot.

13. A connection device as defined in claim 12 , wherein said restoring spring comprises a leaf spring.

14. A connection device as defined in claim 1 , wherein said rotary lever assembly includes a cam section which engages said spring carrier and rotates said spring carrier with said clamping spring assembly.

15. A connection device as defined in claim 1 , wherein said clamping sprint assembly comprises a pair of clamping springs are arranged inside one another with said bending regions positioned inside one another and have the same axis of rotation.

16. A connection device as defined in claim 1 , wherein said clamping spring actuating limb and clamping limb are of different lengths, respectively.

17. A connection device as defined in claim 1 , wherein aid spring carrier includes a rounded journal section about which said at least one clamping spring is rotated in said bending region thereof.

18. A connection device as defined in claim 1 , wherein aid clamping limbs press on the conductor end when the contact position is obtained, said clamping spring assembly and said rotary lever assembly being locked in a positive and/or non-positive fit.

19. A connection device as defined in claim 1 , wherein in the contact position, said clamping spring assembly and said rotary lever assembly are fixed in a positive and/or non-positive manner on one of said busbar section and said housing.

20. A 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.

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

22. A connection device as defined in claim 1 , wherein said acute angle is between 5° and 85°.

23. A connection device for the connection of a conductor end, comprising
(a) a housing;
(b) a busbar section arranged in said housing;
(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, said clamping spring assembly including at least one clamping spring having at least one clamping limb and at least one actuating limb arranged at an acute angle relative to one another and connected by a bending region bearing against a spring carrier, wherein said spring carrier is pivotably arranged within said housing; and
(d) a rotary lever assembly operatively connected with said clamping spring assembly.

Assignees

• Weidmueller Interface Gmbh & Co Kg

Inventors

• Stjepanovic Karlo
• Fehling Stephan
• Fischer Stefan
• Hackemack Frank
• Rutz Andreas
• Münstermann Jörg
• Waldhoff Marco

Classifications

• H01R11/09

  the connecting locations being identical · CPC title

• H01R9/26

  Clip-on terminal blocks for side-by-side rail- or strip-mounting · CPC title

• H01R4/4836 Primary

  Electricity · mapped topic

• H01R4/483 Primary

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

• H01R4/485

  Single busbar common to multiple springs · CPC title