Rotor in a rotary electric machine

A rotor in a rotary electric machine, comprising:

• a plurality of slots which are formed axially of the rotor in the other portion than magnetic pole portions of the rotor;
• windings which are inserted into said slots;
• wedges for holding said windings which are fitted in said slots, said wedges each having slant faces formed at a predetermined angle relative to a radial direction of an iron core of the rotor;
• and
• teeth which are formed between adjacent said slots, said teeth having slant faces for abutment against said slant faces of said wedges to retain the wedges each in a fitted state between adjacent said teeth, a rising position of each said slant face in said teeth being formed in an arcuate shape;
• wherein, in those of said teeth which are located near the magnetic pole portions of said iron core of the rotor and in which are fitted iron wedges, the radius of the arcuate shape at each said slant face rising position is set larger than that of the arcuate shape at each said slant face rising position in the remaining teeth.

A rotor in a rotary electric machine, comprising:

• a plurality of slots which are formed axially of the rotor in the other portion than magnetic pole portions of the rotor;
• windings which are inserted into said slots;
• wedges for holding said windings which are fitted in said slots, said wedges each having slant faces formed at a predetermined angle relative to a radial direction of an iron core of the rotor;
• and
• teeth which are formed between adjacent said slots, said teeth having slant faces for abutment against said slant faces of said wedges to retain the wedges each in a fitted state between adjacent said teeth, a rising position of each said slant face in said teeth being formed in an arcuate shape;
• wherein, in those of said teeth which are located near the magnetic pole portions of said iron core of the rotor and in which are fitted iron wedges, the radius of the arcuate shape at each said slant face rising position is set larger than that of the arcuate shape at each said slant face rising position in the remaining teeth in which are fitted aluminum wedges.