ELECTRIC MACHINE INCLUDING AN ADAPTABLE COOLING SYSTEM

摘要

An electric machine includes a housing having an outer surface and an inner surface. A stator is fixedly mounted to the inner surface. The stator includes a stator core, and a plurality of windings supported by the stator core. The plurality of windings includes first and second end turn portions. A rotor is rotatably mounted within the housing. An adaptable cooling system is fluidically connected to the housing. The adaptable cooling system includes a first coolant circuit configured to guide coolant in a heat exchange relationship with the stator core, and a second coolant circuit configured to guide coolant in a heat exchange relationship with the at least one end turn portion. At least one flow controller is configured and disposed to selectively adapt coolant delivery through the first and second coolant circuits based on coolant temperature flowing from the stator.

主权项

1. An electric machine comprising:
a housing including an outer surface and an inner surface; a stator fixedly mounted to the inner surface, the stator including a stator core and a plurality of windings supported by the stator core, the plurality of windings including a first end turn portion and a second end turn portion; a rotor rotatably mounted in the housing; an adaptable cooling system fluidically connected to the housing, the adaptable cooling system including a first coolant circuit configured to guide a coolant in a heat exchange relationship with the stator core, and a second coolant circuit configured to guide a coolant in a heat exchange relationship with at least one of the first and second end turn portions; and at least one flow controller configured and disposed to selectively adapt coolant delivery through the first and second coolant circuits in response to coolant temperature flowing from one of the stator core, and one of the first and second end turn portions.