Patent ID: 8546994

Claim:
A dynamoelectric machine comprising: a rotor comprising: a pole core comprising: a boss portion; a pair of yoke portions that are disposed so as to extend radially outward from two axial end edge portions of said boss portion; and a plurality of claw-shaped magnetic pole portions that are disposed so as to extend in an axial direction alternately from each of said pair of yoke portions, and that are arranged circumferentially so as to intermesh with each other, said pole core being fixed to a rotating shaft that is inserted through a central axial position of said boss portion; and a field coil that is housed inside a space that is surrounded by said boss portion, said pair of yoke portions, and said plurality of claw-shaped magnetic pole portions; a stator that is disposed so as to surround an outer circumference of said rotor such that a predetermined air gap is interposed; magnet holders that are disposed in claw crotch portions that are formed on portions of said yoke portions between circumferentially adjacent claw-shaped magnetic pole portions; and permanent magnets that are disposed so as to be held by said magnet holders so as to face inner circumferential surfaces near tip ends of said claw-shaped magnetic pole portions so as to have a predetermined clearance, wherein one of the magnet holders does not contain a permanent magnet and a lead wire of said field coil is led out through said claw crotch portion that holds the magnet holder that does not contain the permanent magnet.