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

Claim 0:
1. An electric machine comprising:
a stator core defining fifty-four slots that are circumferentially arranged between an inner diameter and an outer diameter of the stator core, each slot having six pin positions that are arranged in a direction that extends from the inner diameter toward the outer diameter; and
hairpin windings having three electrical phases, each electrical phase having three parallel electrical paths of interconnected hairpins disposed within the slots, each of the electrical paths of interconnected hairpins having first, second, third, and fourth types of hairpins, wherein (i) each of the first type of hairpins has a first crown portion spanning eight slots and first and second opposing outwardly extending twist portions, each of the first and second twist portions spanning four and one half slots, (ii) each of the second type of hairpins has a second crown portion spanning nine slots and third and fourth opposing outwardly extending twist portions, each of the third and fourth twist portions spanning four and one half slots, (iii) each of the third type of hairpins has a third crown portion spanning ten slots and fifth and sixth opposing outwardly extending twist portions, each of the fifth and sixth twist portions spanning four and one half slots, and (iv) each of the fourth type of hairpins has a fourth crown portion, a seventh outwardly extending twist portion, and an inwardly extending twist portion on an opposing side of the fourth crown portion relative to the seventh outwardly extending twist portion.