| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a three-phase dynamo-electric machine in which the number of components in a stator can be reduced by improving cooling performance of a stator coil having split cores. <P>SOLUTION: In the three-phase dynamo-electric machine including the stator having the split cores in which a stator core is split in the circumferential direction of a rotation axis and a rotor disposed face to face and coaxially with the stator, a winding is wound around the split core mounted with a bobbin made of an insulating material by a concentrated winding method. Three bobbins disposed in the circumferential direction are used as one unit, and inner peripheral side both end parts of the bobbin positioned in the center thereof is bendably formed integrally with an inner peripheral side end part of an adjoining bobbin to form a bobbin unit axially split so as to be mountable to three split cores from both ends thereof in the axial direction. The bobbin unit is mounted to the three split cores from both the ends in the axial direction, and the bobbin unit is sealed from the adjacent bobbin unit by the inner peripheral end part to form a cooling path axially extending between three-phase windings. <P>COPYRIGHT: (C)2013,JPO&INPIT |
