A.C. generator for vehicle and a method of producing the same
First Claim
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1. An a.c. generator for a vehicle comprising:
- a rotator;
a stator iron core, arranged opposite to an outer periphery of the rotator and having a plurality of slots; and
a plurality of conductor segments accommodated in the slots to form a stator winding, wherein the stator iron core is insulated from the conductor segments by coating at least end surfaces of the stator iron core and inner wall surfaces of the slots with an insulative resin, wherein the number of the slots is at least two for each pole and each phase, and wherein the inner wall surfaces of the slots are shaped to be uneven.
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Abstract
A stator iron core 21 is formed by laminated iron cores 21a, in which a plurality of slots 24 are shaped with predetermined pitches in a peripheral direction. At least a portion of the laminated iron cores 21a corresponding to an end surface 27 of the stator iron core and inner peripheral walls of the slots 24 are coated with an insulative resin 100 to insulate the stator iron core 21 from a stator winding 22, whereby an insulating capability between the slots and the winding is high, and an a.c. generator for vehicle is easily produced with a low cost.
6 Citations
16 Claims
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1. An a.c. generator for a vehicle comprising:
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a rotator;
a stator iron core, arranged opposite to an outer periphery of the rotator and having a plurality of slots; and
a plurality of conductor segments accommodated in the slots to form a stator winding, wherein the stator iron core is insulated from the conductor segments by coating at least end surfaces of the stator iron core and inner wall surfaces of the slots with an insulative resin, wherein the number of the slots is at least two for each pole and each phase, and wherein the inner wall surfaces of the slots are shaped to be uneven. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification
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Current AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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Original AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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InventorsAsao, Yoshihito, Oohashi, Atsushi
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Primary Examiner(s)MULLINS, BURTON S
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Application NumberUS09/879,095Publication NumberTime in Patent Office916 DaysField of Search310/45, 310/179, 310/180, 310/254, 295/96US Class Current310/45CPC Class CodesH02K 15/12 Impregnating, heating or dr...H02K 3/34 between conductors or betwe...
