Dynamo-electric machine having coils insulated by semi-conductive layers with release treatment
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United States of America
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Jun 28, 2022
Grant Date -
Feb 18, 2021
app pub date -
Jan 7, 2019
filing date -
Jan 7, 2019
priority date (Note) -
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Abstract
A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.
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