| 摘要 |
PURPOSE: To improve insulating performance by forming a conductor wound with a three-layer insulating tape, having a mica layer at a center and plastic foils of thick inside and thin outside in a coiled state, surrounding it with a main insulator, impregnating it with resin, and thermosetting it. CONSTITUTION: Plastic foils 2, 3 are laminated on the inside and outside of a mica layer 1, having a thickness of 40μm at a center, so that a thickness of the foil 2 is 1.5 to 3 times as large as a thickness of the foil 3, and the outside is covered with melted adhesive layers 4, 5, having a thickness of 5μm to form an insulating tape 8. After a conductor 9 has been wound with the tape 8, the conductor 9 is wound predetermined number of times to form a coil. The coil is simultaneously surrounded by a main insulator 10, impregnated with resin in an impregnating tank, and the resin is then heated to be cured. Then, after the coil has been inserted into a slot of a laminate stator 7, it is fixed by a shim 11 and a slit key 12.
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