Motor housings and motor assemblies with controlled radial thermal expansion

Motor housings with controlled radial thermal expansion include a cylindrical body with at least one circumferential groove extending inward from an outer surface of the cylindrical body, and a fiber composite band disposed within each groove. The grooves can be dovetail shaped and extend inward fro...

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Bibliographic Details
Main Authors Wagner, Sean R, Newcomb, Bradley A, He, Song, Pack, Seongchan
Format Patent
LanguageEnglish
Published 28.04.2020
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:Motor housings with controlled radial thermal expansion include a cylindrical body with at least one circumferential groove extending inward from an outer surface of the cylindrical body, and a fiber composite band disposed within each groove. The grooves can be dovetail shaped and extend inward from the outer surface of the cylindrical body to a groove bottom, wherein each groove has a first width at the outer surface and a second width at the groove bottom that is greater than the first width. Methods for controlling radial thermal expansion of motor housings include providing a motor housing including a cylindrical aluminum body with a plurality of circumferential grooves extending inward from an outer surface of the cylindrical body, disposing a plurality of continuous fibers within the grooves, applying a matrix to the continuous fibers, and curing the matrix to form a fiber composite band within the grooves.
Bibliography:Application Number: US201816213082