COIL, MOTOR, WINDING FOR COIL, AND WINDING METHOD OF WINDING

摘要

PROBLEM TO BE SOLVED: To provide a coil using windings with a semiconductive layer on their surfaces and capable of effectively reducing partial discharge between the windings.

SOLUTION: A coil 4 comprises a core 10 having teeth 11, an insulator 12 covering the core 10, and windings 13 that are wound and aligned on the periphery of the teeth 11 through the insulator 12 and have a conductor 20, an insulating layer 21 covering the conductor 20 and a semiconductive layer 22 covering the insulating layer 21. The section of the windings 13 is shaped hexagonally. The windings 13 are wound in a first layer L1 of the windings 13 in a laminated structure so as to form a predetermined gap between the windings 13 in the first layer L1, and the windings 13 are wound in a second layer L2 so as to form a predetermined gap between the windings 13 in the second layer L2 and to touch a surface of the windings 13 in the first layer L1.

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