Abstract: The invention relates to a coil intended to be inserted in into a first and a second slot of a stator, the coil being wound in a plurality of successive turns, each turn comprising:—a first half-turn comprising a first slot portion configured to be inserted in into the first slot of the stator,—a second half-turn comprising a second slot portion configured to be inserted in into the second slot of the stator, the second half-turns each being connected to the first half-turn of the same turn and to the first half-turn of the next turn by junction portions on each side of the first and second slot portions, the junction portions of the coil stacking along at least two juxtaposed heads extending in mutually parallel junction planes.
Type:
Grant
Filed:
December 16, 2021
Date of Patent:
December 2, 2025
Assignees:
NIDEC PSA EMOTORS, SKYAZUR
Inventors:
Olivier Gas, Jacques Saint Michel, Xavier Jannot, Nicolas Langlard, Sebastien Desurmont
Abstract: A stator (1) of a rotary electric machine includes a body (2) provided with slots (15), a coil (3) constituted of windings (4, 5, 6, 7, 8) that include first conductive segments (19) equipped with two first branches and second conductive segments (25) provided with two second branches. Each conductive segment is coated with insulation except for the presence of a bared surface on each one of the branches. The shapes of the bared surfaces complement one another. The first and second conductive segments are arranged in a staggered configuration and in opposite directions successively one after the other, with each slot accepting first branches and second branches positioned opposite with the bared surfaces thereof respectively in contact with one another in such a way as to form a continuous wire. The stator includes elements for keeping the bared surfaces in contact with one another in the slots.