US 11,942,825 B2
Cooling system for an electric machine
Joachim Druant, Houthulst (BE); Steven Vanhee, Hooglede (BE); and Thibault Devreese, Ghent (BE)
Assigned to DANA AUTOMOTIVE SYSTEMS GROUP, LLC, Maumee, OH (US)
Filed by Dana Automotive Systems Group, LLC, Maumee, OH (US)
Filed on Jan. 12, 2022, as Appl. No. 17/574,471.
Prior Publication US 2023/0223801 A1, Jul. 13, 2023
Int. Cl. H02K 1/20 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01); H02K 11/33 (2016.01)
CPC H02K 1/20 (2013.01) [H02K 5/203 (2021.01); H02K 9/19 (2013.01); H02K 11/33 (2016.01)] 17 Claims
OG exemplary drawing
 
1. An electric machine comprising:
a stator including a stack of stator laminations, each of the stator laminations having a plurality of cutouts that form a plurality of oil ducts which axially extend through the stack of stator laminations;
an inverter power module forming an interface with a peripheral surface of an outer section of the stack of stator laminations;
wherein the stator and the inverter power module are positioned within a housing; and
an oil inlet extending through the housing, wherein the stack of stator laminations includes a recessed inlet that circumferentially extends around at least a portion of the stack and is designed to receive oil from the oil inlet and direct the oil to the plurality of oil ducts;
wherein the inverter power module extends axially across the recessed inlet.