US 12,334,789 B2
Stator for an electric machine, and electric machine
Boris Dotz, Bad Neustadt a.d.Saale (DE)
Assigned to Valeo eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 18/257,472
Filed by Valeo eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Dec. 17, 2021, PCT No. PCT/EP2021/086637
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2022/129601, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10 2020 216 149.6 (DE), filed on Dec. 17, 2020.
Prior Publication US 2024/0030769 A1, Jan. 25, 2024
Int. Cl. H02K 3/28 (2006.01); H02K 1/16 (2006.01); H02K 3/12 (2006.01)
CPC H02K 3/28 (2013.01) [H02K 1/165 (2013.01); H02K 3/12 (2013.01); H02K 2213/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Stator for an electric machine, wherein
the stator has a number N≥3 of phases, a number P≥2 of pole pairs and a hole count q=2, wherein
the stator comprises a stator core, which has a first face side, a second face side situated opposite the first face side, and a plurality of slots which extend from the first face side to the second face side and are subdivided into first to L-th layers, where L≥4, and a plurality of shaped conductors which are arranged in the slots in a radially layered manner in the first to L-th layer, wherein the layers are designated in their order in the radial direction, wherein
the shaped conductors form for each phase a first path and a second path, which paths are interconnectable or interconnected with one another in series or in parallel, and are arranged in 2·P winding zones, wherein
each winding zone is subdivided into a first and a second sub-winding zone, each sub-winding zone extends over the L layers and the sub-winding zones of a respective winding zone are designated in their order along a first circumferential direction and a second circumferential direction opposite to the first circumferential direction, wherein
the shaped conductors of a respective path are interconnected by connectors, which connect shaped conductors in adjacent winding zones of the same phase in an alternating manner at the first face side and the second face side of the stator core, to form a series connection with a first end shaped conductor, which is one of the outer shaped conductors, in terms of the series connection, of the path and with a second end shaped conductor, which is the other of the outer shaped conductors, in terms of the series connection, of the path, wherein
the shaped conductors of a respective path form a first section, a second section and a third section of shaped conductors successive in terms of the series connection, wherein
the first section comprises the first end shaped conductor and the third section comprises the second end shaped conductor, wherein
the shaped conductors of the first section and the third section are arranged in one of the sub-winding zones and at least outer shaped conductors, in terms of the series connection, of the second section, in particular all the shaped conductors of the second section, are arranged in the other of the sub-winding zones.