Patent ID: 6633102
Filing Date: 2003-10-14
Classification: H02K

Abstract:
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.