| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating electrical machine that suppresses electrical heating of a packet at a stator core end up to an excessively high temperature.SOLUTION: In the rotating electrical machine including a stator 1 comprising a stator core 3 having a stack of steel plates and a stator coil 4 wound on the stator core, and a rotor 2 inserted in an inner circumference of the stator, and so constructed that the stator core is axially divided into a plurality of stator core packets 100 and that radially extended stator ducts 200 for conducting a refrigerant are disposed between the divided stator core packets, an inner circumferential surface of a first stator core packet 101 at an end of the stator core packets 100 and an inner circumferential surface of a second, adjacent stator core packet 102 are provided with eddy current reducing steps 300 in a plurality of stages, and the steps are arranged such that axially inner steps have an inner circumferential surface located radially inside of other steps. |
