US 12,489,331 B2
Connection unit for a stator, stator arrangement for an electric machine, method for producing a stator arrangement, and electric machine for driving a vehicle
Sebastian Dieterich, Bad Neustadt a.d.Saale (DE); Bianca Hofmann, Bad Neustadt a.d.Saale (DE); and Michael Menz, Bad Neustadt a.d.Saale (DE)
Assigned to Valeo eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 18/257,103
Filed by Valeo eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Nov. 29, 2021, PCT No. PCT/EP2021/083341
§ 371(c)(1), (2) Date Jun. 13, 2023,
PCT Pub. No. WO2022/128424, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10 2020 215 910.6 (DE), filed on Dec. 15, 2020.
Prior Publication US 2024/0106291 A1, Mar. 28, 2024
Int. Cl. H02K 15/33 (2025.01); H02K 3/28 (2006.01); H02K 15/02 (2006.01)
CPC H02K 3/28 (2013.01) [H02K 15/02 (2013.01); H02K 15/33 (2025.01); H02K 2203/09 (2013.01)] 19 Claims
OG exemplary drawing
 
1. Connection unit for a stator with a stator winding having a number N of phases, having first to Nth contact portions, which are each designed for electrically conductively contacting one of N connection portions of the stator, form a receiving chamber for receiving one of the connection portions and have a guide,
wherein a respective contact portion has a wall, which limits the receiving chamber on one side, and the guide of the contact portion has a wall, which adjoins the wall of the contact portion and is bevelled with respect to the wall of the contact portion in a manner facing away from the receiving chamber,
a conductor arrangement, which either electrically conductively connects the first to Nth contact portions or comprises N conductor portions, which are electrically isolated from one another and are each electrically conductively connected to one of the contact portions,
an isolation body, which is arranged on the conductor arrangement and has openings exposing the contact portions, and
a fastening portion, which is designed to engage with a fastening portion of a further connection unit in such a manner that the connection unit and the further connection unit can be transferred from a detached position into a fastened position, in, which the connection unit and the further connection unit are fastened to one another and the conductor arrangement of the connection unit and a conductor arrangement of the further connection unit are electrically isolated from one another.