Patent ID: 11909285
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. An electric machine comprising:
a stator core defming slots that are circumferentially arranged between an inner diameter and an outer diameter of the stator core, each slot having a plurality of pin positions that is arranged in a direction that extends from the inner diameter toward the outer diameter; and
hairpin windings having a plurality of electrical paths of interconnected hairpins disposed within the slots, each of the plurality of electrical paths of interconnected hairpins having a plurality of typical hairpins and a single atypical hairpin, wherein (i) each typical hairpin has first and second opposing outwardly extending twist portions, (ii) each atypical hairpin has a third outwardly extending twist portion and an inwardly extending twist portion disposed on an opposing end of the atypical hairpin relative to the third outwardly extending twist portion, (iii) each atypical hairpin is connected to one of the typical hairpins via a jumper at the inwardly extending twist portion and along a boundary of the hairpin windings, (iv) each atypical hairpin has a crown that spans eight, nine, or ten slots, (v) the third outwardly extending twist portion of each atypical hairpin spans four and one half slots, and (vi) the inwardly extending twist portion of each atypical hairpin spans less than three slots.