Insulator for armature of dynamo-electric machine
AssigneeKabushiki Kaisha Moric
InventorsKenji Nagai, Hiroaki Kondo, Hisanobu Higashi, Takahiro Matsumoto
Life of this patent
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Abstract
An armature for a rotating electrical machine and more particularly to an insulating cover for the pole teeth around which the windings are formed that has good strength against the winding without risk of damage of the insulator due to increased thickness in the highly stressed areas.
Claims11
A rotating electrical machine comprising an armature having a circular core of a magnetic material and a plurality of magnetic pole teeth extending radially from said circular core for cooperation with a plurality of circumferentially spaced permanent magnets, each of said magnetic pole teeth defining a core of generally rectangular cross section with slots formed between circumferentially adjacent pole teeth, an insulator having channel shaped portions covering at least in part said cores of said magnetic pole teeth, said channel shaped portions being comprised of radially extending slot portions extending along the sides of the pole teeth facing the slots and integrally joined by an axial portion extending across an axial outermost side of said pole teeth, said axial portion of said insulator channel shaped portions having a thickness greater than that of said side portions to avoid thinning at the juncture therebetween, coil windings wound around said cores of said magnetic pole teeth with said insulator being interposed therebetween.
Dependencies are inferred from the claim text.