Patent ID: 11909285

Abstract:
An electric machine includes a stator core and a hairpin winding. The stator core defines slots that are circumferentially arranged between an inner diameter and an outer diameter of the stator core. Each slot has a plurality of pin positions that is arranged in a direction that extends from the inner diameter toward the outer diameter. The hairpin winding has a plurality of electrical paths of interconnected hairpins disposed within the slots. Each of the plurality of electrical paths of interconnected hairpins has a plurality of typical hairpins and an atypical hairpin. Each typical hairpin has a crown pitch of eight, nine, or ten, slots and opposing outwardly extending twist pitches along each end of the typical hairpin of four and one half slots. Each atypical hairpin, has an outwardly extending twist pitch and an inwardly extending twist pitch on opposing respective ends of the atypical hairpin.