| 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. |
| 主权项 |
1. A wave winding coil for a rotary electrical machine, comprising:
a coil conductor including coil side portions and coil end portions,each of the coil side portions being configured to be provided by insertion at each slot of a stator core and to be positioned in the slot in an alternating manner,each of the coil end portions being formed integrally with each of the coil side portions and connecting end portions of the coil side portions to each other, the end portions of the side portions being located at an identical side in a direction of the coil side portion,the coil conductor being wound to include a wave winding configuration, wherein
one coil side portion is selected at each of magnetic poles from among n kinds of the coil side portions which are arranged at each of the magnetic poles of each phase, the n kinds of the coil side portions are in a same phase and includes different electromagnetic phase from each other, n refers to a natural number, the coil side portions selected for a required number of the magnetic poles are serially connected to each other at the coil end portions of the coil side portions for forming a phase unit coil, a plurality of the phase unit coils are parallelly connected to each other for forming a phase coil, each of the plurality of the phase unit coils includes the selected coil side portions that are different from each other, each of the phase unit coils of the phase coil includes all of the n kinds in a manner that an identical number of each of the n kinds of coil side portion is included in each of the phase unit coil, the coil side portions are selected in a manner that the number of the coil side portions serially connected to each other is identical to each other between the plurality of phase unit coils, a relational expression expressing a total number of the coil side portions included in the phase coil is expressed by a mathematical expression 1, the mathematical expression 1 refers to 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 poles, m refers to a common divisor between q×2p and n. |
