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Stator winding having transitions

  • US 20050046297A1
  • Filed: 08/09/2004
  • Published: 03/03/2005
  • Est. Priority Date: 01/24/2002
  • Status: Active Grant
First Claim
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1. A stator for an electric machine, comprising:

  • a generally cylindrically-shaped stator core having a plurality of circumferentially spaced and axially-extending core slots in a surface thereof, said core slots extending between a first and a second end of said stator core;

    a stator winding having a plurality of phases, each phase comprising at least a first filar and a second filar extending circumferentially around said stator core to form a plurality of layers;

    each of said filars being a conductor having a plurality of slot segments disposed in said core slots, said slot segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, said first filar having a first set of a plurality of consecutive slot segments having at least a first and second consecutive slot segment wherein each slot segment is disposed at substantially the same radial distance from a central axis of said stator core and having a second set of a plurality of consecutive slot segments having at least a third and fourth consecutive slot segment wherein each slot segment is disposed at substantially the same radial distance from a central axis of said stator core;

    said plurality of consecutive slot segments of said first set being disposed at substantially the same radial distance from a central axis of said stator core as said plurality of consecutive slot segments of said second set; and

    said slot segments of said first and second filars of a particular phase alternating radial positions with one another within at least one discreet location around said stator core.

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