| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide radial ducts (220) in a rotating electric machine having a rotor (100) and a plurality of radial slots present in the rotor (100). <P>SOLUTION: A plurality of coils are installed in the radial slots respectively. Also, the coils form a plurality of laminated turns. Further, a radial duct (220) includes one or more cooling slots which are formed in at least one portion of the radial laminating turns, and are extended in almost radial direction to the rotor. Moreover, at least one portion of the inner surfaces of one or more cooling slots include one or more ribs (525) which contribute an increase in heat transfer. <P>COPYRIGHT: (C)2011,JPO&INPIT |
