Assemblies and methods for cooling electric machines

摘要

Cooling assemblies, such as those configured to cool electric machines (e.g., electric motors and generators) and components of electric machines (e.g., rotors and stators).

主权项

1. A cooling assembly for an electric machine comprising:
a rotor comprising:
a rotor core having:
a first end;a second end; anda rotor bore extending from the first end to the second end;rotor poles extending at least partially from the first end to the second end of the rotor core, each rotor pole having sides; anda rotor winding associated with each rotor pole; and a tube wrapped multiple times around a rotor pole such that at least two wraps of the tube are stacked in a direction that is parallel to the rotor pole height and disposed between two layers of the rotor winding associated with that rotor pole; where the rotor winding associated with that rotor pole has a bottom and no portion of the at least two wraps of the tube extends beyond the bottom, the at least two wraps are adjacent to each other, and flow through the at least two wraps will be in a same relative direction.