Stator of a rotary electric machine having stacked core teeth
First Claim
1. A stator for an automotive alternator, comprising:
- a generally cylindrically-shaped stator core having a plurality of circumferentially spaced and axially-extending core teeth that define 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 at least one of said core teeth having a distal end that is staked for an axial length that is shorter than the axial length of said stator core, such that the distal end of said at least one core tooth is flared outward circumferentially on at least one side of said distal end to secure said stator winding within said core slots.
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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. At least one of the core teeth includes a distal end that is staked such that the distal end of the at least one core tooth is flared outward circumferentially to secure the stator winding within the core slots.
116 Citations
17 Claims
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1. 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 teeth that define 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 at least one of said core teeth having a distal end that is staked for an axial length that is shorter than the axial length of said stator core, such that the distal end of said at least one core tooth is flared outward circumferentially on at least one side of said distal end to secure said stator winding within said core slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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 teeth that define 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;
said slot segments are inserted into said core slots of said generally cylindrically-shaped stator core in a substantial radial direction;
said stator winding including at least one of said end loop segments 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; and
at least one of said core teeth adjacent said one of said of core slots having a distal end that is staked for an axial length that is shorter than the axial length of said stator core, such that the distal end of said at least one core tooth is flared outward circumferentially on at least one side of said distal end such that said at least one of said core slots has at least a portion of the opening width of said core slot which is smaller than the width of said slot segments housed in the same at least one of said core slots, said slot segments housed in said core slots are aligned in at least one radial row in at least one core slot. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification