Patent ID: 11862543
Assignee: AMERICAN AXLE & MANUFACTURING, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electric drive unit comprising:
a stator having a stator body and a plurality of sets of field windings, the stator body defining a plurality of cooling channels that extend longitudinally through the stator body, each of the sets of field windings being fixedly coupled to the stator body and being circumferentially spaced apart about a central longitudinal axis;
a rotor received in the stator and rotatable about the central longitudinal axis; and
an inverter assembly that includes a plurality of power semiconductors, a plurality of heat sinks and an end plate, each of the power semiconductors being thermally coupled to a corresponding one of the heat sinks, each of the heat sinks having a plurality of fins that extend into a flow channel that is coaxial with the plurality of sets of field windings, the end plate being coupled to the power semiconductors and having a projection and a coolant port, the projection being sealingly coupled to the plurality of sets of field windings and partly defining an annular cavity, the coolant port being coupled in fluid communication with the annular cavity, wherein the flow channel is in fluid communication with and disposed in a flow path between the annular cavity and the cooling channels in the stator body.