Stator winding having cascaded end loops
First Claim
Patent Images
1. A stator for a dynamoelectric 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; and
a stator winding including at least one layer of continuous conductors having a plurality of phases, each of said phases having a plurality of substantially straight segments disposed in said core slots, said straight segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, each of said straight segments of said at least one layer being in a same radial distance from a central axis of said stator core, said straight segments and said end lop segments having a substantially equal cross sectional area, wherein said end loop segments form a cascaded winding pattern.
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Abstract
An alternator stator having cascaded end loop segments includes a multi-phase stator winding that is adapted to be placed in a plurality of circumferentially spaced axially-extending core slots in a surface of a stator core. The stator winding includes a plurality of straight segments alternately connected at the first and second ends of the stator core by a plurality of end loop segments to form the winding. The end loop segments include first and second sloped portions meeting at an apex portion. Each of the end loop segments includes a radial outward adjustment and a radial inward adjustment and forms a cascaded winding pattern.
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Citations
23 Claims
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1. A stator for a dynamoelectric machine, comprising:
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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; and
a stator winding including at least one layer of continuous conductors having a plurality of phases, each of said phases having a plurality of substantially straight segments disposed in said core slots, said straight segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, each of said straight segments of said at least one layer being in a same radial distance from a central axis of said stator core, said straight segments and said end lop segments having a substantially equal cross sectional area, wherein said end loop segments form a cascaded winding pattern. - View Dependent Claims (2, 3, 4, 5)
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6. A stator for a dynamoelectric machine, comprising:
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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; and
a stator winding including at least one layer of continuous conductors having a plurality of phases, each of said phases having a plurality of substantially straight segments disposed in said core slots, said straight segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, each of said straight segments of said at least one layer being in a same radial distance from a central axis of said stator core, wherein each of said end loop segments includes a first sloped portion substantially co-radial with said at least one layer and a second sloped portion substantially non-co-radial with said at least one layer, said first and second sloped portions connected by an apex portion thereof, and wherein a one of said first sloped portion, said second sloped portion, and said apex portion of each of said end loop segments includes a radial outward adjustment and a one of said first sloped portion, said second sloped portion, and said apex portion of each of said end loop segments includes a radial inward adjustment to form a cascaded winding pattern. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A dynamoelectric machine, comprising:
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a housing;
a shaft rotatably supported by said housing;
a rotor supported by and adapted to rotate with said shaft; and
a stator fixedly disposed in said housing adjacent said rotor, said stator comprising;
a generally cylindrically-shaped stator core having a plurality of circumferentially spaced axially-extending core slots in a surface thereof, said core slots extending between a first and a second end of said stator core; and
a stator winding including at least one layer of continuous conductors having a plurality of phases, each of said phases having a plurality of substantially straight segments disposed in said core slots, said straight segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, each of said straight segments of said at least one layer being in a same radial distance from a central axis of said stator core, wherein each of said end loop segments includes a first sloped portion substantially co-radial with said at least one layer and a second sloped portion substantially non-co-radial with said at least one layer, said first and second sloped portions connected by an apex portion thereof, and wherein a one of said first sloped portion, said second sloped portion, and said apex portion of each of said end loop segments includes a radial outward adjustment and another one of said first sloped portion, said second sloped portion, and said apex portion of each of said end loop segments includes a radial inward adjustment to form a cascaded winding pattern.
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Specification