| 摘要 |
A rotor for a dynamoelectric machine includes a rotor shaft, a commutator, an armature, and a plurality of risers. The commutator includes a plurality of commutator bars extending circumferentially from the rotor shaft. The armature includes a plurality of slots wherein a plurality of armature coils are wound. The armature coils include end windings. The risers are secured to outer ends of respective commutator bars and extend longitudinally in a radial direction from the rotor shaft. Each riser is connected to a corresponding end winding such that each armature coil is electrically connected to a corresponding commutator bar. Each riser has at least one opening extending therethrough.
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