Electric rotary machine

Electrical generator or motor structure – Dynamoelectric – Rotary

Reexamination Certificate

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Details

C310S089000, C310S043000

Reexamination Certificate

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11226299

ABSTRACT:
In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat conductive insulation resin and a frame is selected such that a linear thermal expansion coefficient α1 of the stator core, a linear thermal expansion coefficient α2 of the stator coil, a linear thermal expansion coefficient α3 of the heat conductive insulation resin being filled and a linear thermal expansion coefficient α4 of the frame satisfy a relation that α1<α2 <α4≦α3. A cooling medium path is integrally formed within the frame made from aluminum through die casting molding.

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European Search Report dated Dec. 12, 2005.

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