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US 4,103,195 AGranted
Bonded laminations forming a stator core
AssigneeGeneral Electric Company
InventorsKevork A. Torossian, Alexander L. Lynn
Life of this patent
Estimating the term…
Abstract
Lamination of the stator core is accomplished by stacking the core with a series of segments or punchings of steel each of which is insulated with a layer of adhesive enamel on both sides. The adhesive enamel is comprised of an epoxy resin and a sufficient amount of a glass fiber spacer filler to substantially provide uniform separation and insulation between the individual segments.
Claims9
A bonded stator core, for a dynamoelectric machine, which comprises
- (a) a multiplicity of steel segments stacked in the configuration of said core, each segment of at least a portion of said core being bonded to and insulated from the adjacent segment and
- (b) an interlayer between said segments for bonding and insulating said segments, said interlayer comprising a cured epoxy resin and a fiber spacer filler,
- said filler comprising cylindrical fibers having a diameter of 0.45-0.55 mil and a length of about 1/64-1/32 inch to provide uniform separation between the individual segments.
Dependencies are inferred from the claim text.