Hairpin winding electric machine

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 an atypical hairpin, wherein (i) 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, (ii) each atypical hairpin has an outwardly extending twist pitch and an inwardly extending twist pitch on opposing respective ends of the atypical hairpin, (iii) the interconnected hairpins forming the plurality of electrical paths are arranged in sets of three, (iv) each hairpin of each set of three is from a different electrical path of the plurality of electrical paths, and (v) each set of three includes one hairpin having a crown pitch of eight, one hairpin having a crown pitch of nine, and one hairpin having a crown pitch of ten.

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.