| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve cooling performance of a rotor core with cooling medium flowing in a rotor shaft, and torque transmission performance between the rotor core and the rotor shaft. <P>SOLUTION: A rotor 14 of a rotary electric machine comprises: a rotor core 15 which is formed by laminating magnetic plate materials 18; a rotor shaft 28 which is fixed to a shaft hole 30 of the rotor core 15 and internally includes a coolant passage 32 where cooling oil flows; and a filler 44 filling a gap g caused by irregular lamination of the magnetic plate materials 18 in an area between an inner peripheral surface of the shaft hole 30 of the rotor core 15 and an outer peripheral surface of the rotor shaft 28 between which the torque is transmitted, to increase the connection strength of the magnetic plate materials 18 to the rotor shaft 28. <P>COPYRIGHT: (C)2013,JPO&INPIT |
