| 摘要 |
The invention relates to an electric rotary machine in which heat conductive insulation resin (5) is filled at the end portions of a stator coil (3), the material of a stator core, the stator coil, the heat conductive insulation resin (5) and a frame (2) is selected such that a linear thermal expansion coefficient alpha 1 of the stator core (4), a linear thermal expansion coefficient alpha 2 of the stator coil (3), a linear thermal expansion coefficient alpha 3 of the heat conductive insulation resin (5) being filled and a linear thermal expansion coefficient alpha 4 of the frame (2) satisfy a relation that alpha 1 < alpha 2 < alpha 4 ≤ alpha 3. A cooling medium path (1) is integrally formed within the frame made from aluminum through die casting molding. <IMAGE>
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