US 11,757,335 B2
Cooling channels in a high-density motor
Jagadeesh Kumar Tangudu, South Windsor, CT (US); and Aritra Sur, South Windsor, CT (US)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Apr. 6, 2021, as Appl. No. 17/223,443.
Prior Publication US 2022/0320961 A1, Oct. 6, 2022
Int. Cl. H02K 9/19 (2006.01); H02K 1/16 (2006.01); H02K 3/12 (2006.01); H02K 3/48 (2006.01); H02K 3/24 (2006.01)
CPC H02K 9/19 (2013.01) [H02K 1/16 (2013.01); H02K 3/12 (2013.01); H02K 3/24 (2013.01); H02K 3/48 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A stator comprising:
a stator hub;
a plurality of stator teeth extending from the stator hub that define a stator slot having a stator slot base;
a plurality of windings disposed in the stator slot, each winding having an inner winding portion and an outer winding portion connected to the inner winding portion by end turns; and
a back iron;
wherein the plurality of windings surrounds the back iron and is held apart from the stator slot base so that a fluid channel is defined between the inner winding portion of the plurality of windinqs so fluid can be passed between the stator slot base and the inner winding portion to cool the inner winding portion; and
one or more winding separators formed of insulating material and disposed between adjacent ones of the outer winding portions, wherein the one or more winding separators include cooling passages formed therein.