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    • 2. 发明公开
    • ELECTRIC DRIVE FOR A VEHICLE
    • EP4203264A1
    • 2023-06-28
    • EP21217829.7
    • 2021-12-27
    • Valeo eAutomotive Germany GmbH
    • FINGER-ALBERT, ChristianGOPALAKRISHNAN, RameshkumarBALASUBRAMANIAN, Maniprasath
    • H02K3/50
    • Electric drive (1) for a vehicle (100), comprising: an electric machine (2) having a stator (3), which comprises a stator core (12) with a longitudinal axis (23) and a stator winding (13), the stator winding (13) forming a winding head (14) at an axial face side (15) of the stator core (12); an inverter (6); supply busbars (8a-c) connected to the inverter (6); and a terminal device (9), comprising
      - an insulation body (22) comprising a base (24) and a plurality of concentrically arranged ribs (25a-d) protruding from the base (24) into an axial direction and extending along a circumferential direction,
      - a plurality of accommodation spaces (26a-c), each formed between a respective pair of radially adjacent ribs (25a-d), and
      - a plurality of phase connection busbars (27a-c), each
      - being arranged inside one of the accommodation spaces (26a-c) and insulated against the winding head (14) by the insulation body (22),
      - having a cross-sectional area with opposing long sides (34) extending along the axial direction and with opposing short sides (35) connecting the long sides (34) and
      - having a phase connection section (36d) connected to one of the supply busbars (8a-c), a coil connection section (36a-c) being connected to the stator winding (13) and a bar section (37a-d) extending between the phase connection section (36d) and the coil connection section (36a-c);

      wherein the long sides (34) within the phase connection section (36ad) are larger than the long sides (34) within the bar section (37a-d) so that the phase connection section (36d) protrudes out of the accommodation space (26a-c), wherein the ribs (25a-c) form mounting spaces arranged with an axial distance to the bar section (37c) of a respective phase connection busbar (27a-c),
      wherein the supply busbars (8a-c) are mounted inside the mounting spaces.