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US 6,147,432 AGranted
AC generator stator for vehicle
AssigneeDenso Corporation
InventorsShin Kusase, Atsushi Umeda, Tsutomu Shiga
Life of this patent
Estimating the term…
Abstract
In an alternator for a vehicle, a stator winding is composed of a plurality of U-shaped conductor segments and an annular member. The conductor segments have connection edges connected to one another to form ring-connected coil-ends, and the annular member covers the ring-connected coil-ends at the connection edges and portions of the conductor segments adjacent the connection edges. The annular member has a prescribed thickness that provides the ring-connected coil-ends with a prescribed stiffness.
Claims18
An alternator for a vehicle, comprising:
- a rotor;
- a stator disposed around an outer periphery of said rotor;
- and
- a frame supporting said rotor and said stator,
- wherein said stator comprises a stator core with a plurality of slots, a plurality of conductor segments composed of coil-end portions and in-slot portions forming a stator winding, and a resin member bridging said plurality of conductor segments along a circumferential direction of said stator,
- wherein said plurality of conductor segments form inclined portions intersecting with one another with edge portions thereof at said coil-end portions being welded to each other, and
- wherein said resin member covers said edge portions and limited portions of said inclined portions, and has a thickness greater at said edge portions than at said inclined portions.
4 more elements
An alternator for a vehicle, comprising:
- a rotor;
- a stator disposed around an outer periphery of said rotor, wherein said stator comprises a stator core with a plurality of slots and a stator winding composed of a plurality of conductor segments having in-slot portions and coil-end portions, and wherein said plurality of conductor segments include connected portions welded to one another and inclined portions adjacent thereto at said coil end portions;
- a frame supporting said rotor and said stator;
- and
- a resin member covering said connected portions and limited portions of said inclined portions in a circumferential direction of said stator, said resin member being thicker at said connected portions than at said inclined portions to increase a stiffness of said coil-end portions and to protect said connected portions.
2 more elements
An alternator for a vehicle, comprising:
- a rotor;
- a stator disposed around an outer periphery of said rotor, wherein said stator comprises a stator core with a plurality of slots and a stator winding composed of a plurality of conductor segments having in-slot portions and coil-end portions, and wherein said plurality of conductor segments include connected portions welded to one another and inclined portions adjacent thereto at said coil end portions;
- a frame supporting said rotor and said stator;
- and
- a resin member covering said connected portions and limited portions of said inclined portions, said resin member being thicker along said connected portions than said inclined portions to increase a stiffness of said coil-end portions and to protect said connected portions,
- wherein said conductor segments are covered with a resin layer in addition to said resin member, which is thinner than said resin member.
3 more elements
An alternator for vehicle including a rotor, a stator disposed around the outer periphery of said rotor, and a frame supporting said rotor and said stator, wherein
- said stator comprises a stator core with a plurality of slots, a stator winding composed of a plurality of conductor segments, and a resin member mechanically connecting said plurality of conductor segments,
- said plurality of conductor segments have edge portions circumferentially disposed on said coil end portions,
- said resin member circumferentially adheres said edge portions to bond the same in a wave-shaped configuration corresponding to surfaces of said edge portions.
An alternator for a vehicle, comprising:
- a rotor;
- a stator having a plurality of slots and a stator winding;
- and
- a frame supporting said rotor and said stator,
- wherein said stator winding comprises a plurality of U-shaped conductor segments having connection edges connected to one another to form ring-connected coil-ends and an annular member covering said ring-connected coil-ends at said connection edges and portions of said conductor segments adjacent said connection edges, and
- wherein said annular member has a prescribed thickness that provides said ring-connected coil-ends with a prescribed stiffness,
- wherein said annular member is made of a first thermosetting resinous material having a viscosity forming said prescribed thickness when coated on said ring-connected coil ends.
4 more elements
The alternator for a vehicle, comprising:
- a rotor;
- a stator disposed around an outer periphery of said rotor;
- and
- a frame supporting said rotor and said stator,
- wherein said stator comprises a stator core with a plurality of slots, a plurality of conductor segments composed of coil-end portions and in-slot portions forming a stator winding, and a resin member bridging said plurality of conductor segments along a circumferential direction of said stator,
- wherein said plurality of conductor segments form inclined portions intersecting with one another with edge portions thereof at said coil-end portions being welded to each other, and
- wherein said resin member covers said edge portions and limited portions of said inclined portions, and has a thickness greater at an area of said conductor segments between said edge portions and said inclined portions than at said inclined portions.
4 more elements
Dependencies are inferred from the claim text.