Stator of a rotary electric machine having secured core slot insulators
18 Assignments
0 Petitions
Accused Products
Abstract
A stator of a rotary electric machine having secured core slot insulators includes a multi-phase stator winding, having a plurality of slot segments that are adapted to be radially inserted into a plurality of circumferentially spaced axially-extending core slots in a surface of a cylindrically-shaped stator core. The stator winding includes the plurality of slot 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 plurality of core slots house an insulator to electrically isolate the slot segments from the core slots. The insulator is secured to the sides of the core slot prior to the process of radial inserting the plurality of slot segments into the plurality of core slots of the cylindrically-shaped stator core.
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Citations
34 Claims
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1. (canceled)
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3. A stator for an electric machine, comprising:
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a generally cylindrically-shaped stator core having a plurality of circumferentally 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 of said phases including at least one conductor having a plurality of slot segments housed 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, at least one of said end loop segments connecting a first of said slot segments housed in a radial position of one of said core slots with a second of said slot segments housed in the same radial position of another one of said core slots; and
an insulator housed in between said core slot a said slot segments within each core slot, said insulator being secured to sides of said core slot prior to insertion of said slot segments into said core slots. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 20, 21, 22, 23)
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13. A stator for an electric 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 a stator winding having a plurality of phases, each of said phases including at least one conductor having a plurality of slot segments housed 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; and
a laminate Insulator housed in between said core slot and said slot segments within each core slot, said laminate insulator including an insulator and a spring material, and being secured to sides of said core slot prior to insertion of said slot segments into said core slots. - View Dependent Claims (14, 15)
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16. (canceled)
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18. A stator for an electric 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;
a stator winding having a plurality of phases, each of said phases including at least one conductor having a plurality of slot segments housed 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, at least one half of said end loop segments connecting a first of said slot segments housed in a radial position of one of said core slots with a second of said slot segments housed in the same radial position of another one of said core slots; and
an insulator housed in between said core slot and said slot segments within each core slot, said insulator being a coating that is applied to sides of said core slot prior to insertion of said slot segments into said core slots. - View Dependent Claims (17, 19)
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24-26. -26. (canceled)
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27. A stator for an automotive alternator, 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;
a stator winding having a plurality of phases, each phase comprised of at least one conductor;
said at least one conductor having a plurality of slot segments housed 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;
an insulator housed In between said core slot and said slot segments housed in said core slot;
said insulator Is comprised of a sheet type material;
said insulators are secured to the sides of said core slots prior to insertion of said slot segments into said core slots, by an adhesive which is applied between said insulators and the sides of said core slots; and
said winding includes at least one of said end loop segment which connects a first of said slot segments housed in a radial position of one of said core slots with a second of said slot segments housed in the same radial position of another one of said core slots. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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34-40. -40. (canceled)
Specification