ROTOR FOR ROTATING ELECTRIC MACHINE

摘要

In a rotor of the present invention, an interference is set to have a relationship so that an inner diameter of a press-fit projecting portion before press-fitting is smaller than a diameter of a shaft, and in the inner wall surface, a non-projecting portion is formed without projecting portions on a portion in which a weld line is generated by the molding.

主权项

1. A rotor for a rotating electric machine, comprising:
a shaft having an end portion with a smooth circumferential surface; a slip ring device press-fitted over the shaft, the slip ring device comprising:
a first ring and a second ring disposed coaxially so as to be separated away from each other, the first ring and the second ring being electrically connected to a rotor coil; anda molded-body main body formed of a resin by molding, for retaining the first ring and the second ring in an insulated fashion; and a press-fit projecting portion comprising a plurality of projecting portions extending along an axial direction formed on an inner wall surface of a hole of the molded-body main body into which the shaft is press-fitted, wherein an interference is set to have a relationship so that an inner diameter of the press-fit projecting portion before press-fitting is smaller than a diameter of the shaft, and wherein the inner wall surface comprises a non-projecting portion without the plurality of projecting portions, which is formed on a portion in which a weld line is generated by the molding.