| CPC H02K 17/14 (2013.01) [H02K 17/04 (2013.01)] | 9 Claims |
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1. An induction motor having a rotor element and a stator element that sustains a stator rotating magnetic field; said rotor element having a rotor winding system that includes a plurality of winding units wound-distributed on a cylindrical periphery of a rotor lamination body for inducing a rotor magnetic field; each of said winding units comprising:
an induction subwinding having between two induction terminals thereof two legs of each a plurality of induction conductor segments; said induction subwinding inducing an emf across said two induction terminals for causing a rotor current in said rotor winding system that generates a basic induction component for said rotor magnetic field when said induction conductor segments move relative to said stator rotating magnetic field; and
an augmentation subwinding having between two augmentation terminals thereof two legs of each a plurality of augmentation conductor segments aligned substantially parallel to said induction conductor segments; wherein
said augmentation subwinding being wound such that said two legs of augmentation conductor segments are immediately next to each other and are positioned substantially mid-way between said two legs of induction conductor segments on said rotor lamination body cylindrical periphery; and
said augmentation subwinding being electrically connected to said induction subwinding via said induction and augmentation terminals so as to produce by said rotor current an augmentation component for said rotor magnetic field; said augmentation component being substantially aligned with and oriented toward the same direction of said basic induction component; said augmentation component thereby enhancing field strength of overall rotor magnetic field.
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