| 摘要 |
A wave winding coil for a rotary electrical machine includes a coil conductor including coil side portions and coil end portions, the coil conductor being wound to include a wave winding configuration, a relational expression expressing a total number of the coil side portions included in a phase coil is expressed by a mathematical expression 1 m×k=n×q×2p, and m refers to the number of the phase unit coils that are parallelly connected to each other, k refers to the number of the coil side portions that are serially connected to each other, q refers to the number of serially-connected-conductors per magnetic pole, the serially-connected-conductor belongs to one of the kinds of the coil side portions, 2p refers to the number of the magnetic pole, m refers to a common divisor between q×2p and n.
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