ELECTRICAL MACHINE AND METHODS OF ASSEMBLING THE SAME

摘要

A fluid circulating assembly includes a fan impeller having an inlet ring and a rear plate that define a central chamber. The fluid circulating assembly includes an electrical machine having a rotor assembly, a stator assembly, and a housing. The electrical machine is coupled to the rear plate of the impeller such that the electrical machine is positioned entirely outside the central chamber. The housing includes a plurality of fins on a side of the housing opposite the rear plate. The fins extend axially away from the stator assembly. The assembly includes a duct attached to the housing. The duct covers a portion of the fins and extends radially outward from the housing towards an outer edge of the rear plate. The duct is configured to channel air over the portion of the fins to facilitate cooling the electrical machine.

主权项

1. A fluid circulating assembly having a rotation axis, said fluid circulating assembly comprising:
a fan impeller comprising an inlet ring and a rear plate that together define a central fan chamber; an electrical machine comprising a rotor assembly, a stator assembly, and a housing, said electrical machine coupled to said rear plate such that said electrical machine is positioned entirely outside said central fan chamber, said housing comprising a plurality of fins on a side of said housing opposite said rear plate, said plurality of fins extending axially away from said stator assembly; and a duct coupled to said housing, said duct covering a portion of said fins and extending radially outward from said housing to said rear plate and towards an outer edge of said rear plate, wherein said duct is configured to channel air over said portion of said fins to facilitate cooling said electrical machine.