Patent ID: 7508105
Filing Date: 2009-03-24
Classification: H02K

Abstract:
1. A magneto-generator, comprising: a flywheel implemented substantially in a bowl-like shape; a plurality of magnets disposed on and along an inner peripheral surface of said flywheel; a guard ring formed substantially in a smooth, continuous cylindrical shape and disposed in intimate contact with said plurality of magnets at inner side surfaces thereof, said guard ring being provided with retaining portions formed in an opened peripheral edge portion of said guard ring located at a bottom side of said flywheel and a discontinuous flange portion formed of a series of circumferentially spaced flange sections wherein each of said flange sections includes a folded flange segment that has two layers in a laminated state in a direction axially of said magneto-generator, in an opened peripheral edge portion at a side opposite to said retaining portions for thereby positioning said magnets in a radial direction with the smooth outer peripheral surface of said guard ring while positioning said magnets in a rotational axis direction by sandwiching said magnets between said retaining portions and said discontinuous flange portion; and a mass of resin filled between said flywheel and said guard ring around each of said magnets for securing fixedly said magnets integrally with said flywheel.