Patent ID: 7262534

Claim:
A magneto-generator comprising: a flywheel having a cylindrical portion and rotating about a rotation axis; a plurality of magnets disposed on an inner circumferential surface of the cylindrical portion of the flywheel and rotating together with the flywheel; a stator core having a laminated core formed by laminating a plurality of magnetic thin plate, the laminated core having an annular portion and a plurality of teeth projecting from the annular portion outward and opposed to the plurality of magnets; and a plurality of generation coils, each of generation coils wound on the respective teeth of the laminated core, wherein: the stator core has two end plates that are made of a metal material and disposed on both sides of the laminated core in such a manner that the laminated core is sandwiched in between; each of the teeth of the laminated core has a first portion extending in a radial direction and a second portion projecting in a circumferential direction from an outer end of the first portion on both sides thereof; each of the two end plates has a first portion that is laid on the first portion of each of the teeth and a second portion that is laid on the second portion of each of the teeth, at least the first portion of each of the two end plates is smaller in circumferential width than the first portion of each of the teeth, the second portion of at least one of the two end plates has a projection portion that projects only from the second portion of a respective tooth, and at least the second portion of at least one of the two end plates is made of a non-magnetic metal material.