Patent ID: 7956507

Claim:
A rotor for a rotating electrical machine, the rotor comprising: a shaft; a pair of pole cores press-fit on the shaft; a terminal provided on the shaft; an insulating bobbin mounted on the pole cores, the insulating bobbin having a cylindrical body and a pair of flanges that extend radially outward from opposite axial ends of the body, respectively; and a field coil having a winding portion and a lead, the winding portion being wound around the body of the insulating bobbin, the lead having a proximal portion, a distal portion, and an intermediate portion between the proximal and distal portions, the proximal portion extending from the winding portion of the field coil, the distal portion being connected to the terminal, wherein one of the flanges of the insulating bobbin is formed with a first hook portion and a second hook portion, the first hook portion directs the lead both against a winding direction of the field coil and radially inward, the first hook portion having a first groove through which the lead extends, the first groove having its open end on a radially outer periphery of the first hook portion and its closed end positioned radially inward of the open end, the first hook portion having an end of the proximal portion of the lead, which is away from the winding portion of the field coil, hooked in the first groove, and the second hook portion directs the lead axially outward, the second hook portion having a second groove through which the lead extends, the second groove having its open end on a radially inner periphery of the second hook portion, its closed end positioned radially outward of the open end, and a neck between the open and closed ends of the second groove, the second hook portion having part of the intermediate portion of the lead hooked in the second groove between the neck and closed end of the second groove.