US 11,658,427 B2
Connection device for electrical conductors, and spring element for a connection device
Bernard Schlegel, Rahden (DE); Heiko Herbrechtsmeier, Buende (DE); and Irina Loetkemann, Espelkamp (DE)
Assigned to HARTING ELECTRIC GMBH & CO. KG
Appl. No. 17/433,980
Filed by HARTING ELECTRIC GMBH & CO. KG, Espelkamp (DE)
PCT Filed Feb. 19, 2020, PCT No. PCT/DE2020/100118
§ 371(c)(1), (2) Date Aug. 25, 2021,
PCT Pub. No. WO2020/173524, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 10 2019 104 704.8 (DE), filed on Feb. 25, 2019.
Prior Publication US 2022/0140501 A1, May 5, 2022
Int. Cl. H01R 4/48 (2006.01)
CPC H01R 4/4827 (2013.01) [H01R 4/4836 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A connection device configured to provide an electrical contact between at least one electrical conductor and a busbar of an electrical connecting contact, said connection device comprising
a bearing device including at least one spring element formed on the busbar of the connecting contact;
wherein the spring element is formed and arranged in an actuable manner on the bearing device in such a way that the spring element can be brought from a first tension state to a second and third tension state; wherein,
in the first tension state of the spring element, a contact end of the spring element abuts against the busbar and,
in the second tension state of the spring element, the conductor is fixed on the busbar by the contact end of the spring element whereby to close a contact connection of the conductor to the busbar and,
in the third tension state of the spring element, the contact connection for the conductor to the busbar is opened,
wherein the spring element is a meander-shaped or S-shaped spring having a first and second bend;
a first and second bearing portion of the spring element are formed by the first and second bend;
an elongated clamping limb adjoins the second bearing portion, on which clamping limb the contact end is formed as a first freely projecting end for the contact connection of the conductor to the busbar and for fixing the conductor on the busbar;
the freely projecting contact end is bent in a direction of the busbar on the clamping limb such that a locking contour for the conductor is provided, and
wherein a second freely projecting end having an opening for insertion of a tool is formed on the clamping limb in a contrary direction to the busbar as the device for actuating the spring element.