US 11,923,741 B2
Motor stator with semi-staggered winding layout and single-sided phase, neutral, and coil connection welds
Dang Dinh Dang, Garden Grove, CA (US); and Logan Noel Balliett, Los Angeles, CA (US)
Assigned to Rivian IP Holdings, LLC, Plymouth, MI (US)
Filed by Rivian IP Holdings, LLC, Plymouth, MI (US)
Filed on Dec. 1, 2021, as Appl. No. 17/539,376.
Prior Publication US 2023/0170752 A1, Jun. 1, 2023
Int. Cl. H02K 3/28 (2006.01); B60K 1/00 (2006.01)
CPC H02K 3/28 (2013.01) [B60K 1/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A motor stator for a motor, comprising:
a stator body including a weld end, a crown end, and a plurality of slots arranged circumferentially and extending axially therethrough between the weld end and the crown end; and
a plurality of windings each winding including a phase lead, a neutral lead, and a plurality of coils, the plurality of coils including a same-layer lead coil that spans across multiple slots of the plurality of slots and includes two legs that are inserted into respective slots at a same layer thereof, the same-layer lead coil positioning the phase lead at the weld end, wherein the neutral lead and welds joining the plurality of coils are all positioned at the weld end, wherein each respective winding includes a forward winding segment wound in a first circumferential direction, a reverse winding segment wound in a second circumferential direction, opposite the first circumferential direction, and a same-layer jumper coil connecting the forward winding segment to the reverse winding segment, each leg of the same-layer jumper coil being slotted in a respective slot at a same layer thereof.