Group of three stator windings for a stator of an electric machine, a stator arrangement, a generator, and wind turbine
First Claim
1. A group of three stator windings for a stator of an electric machine, whereinthe stator comprises a first cylindrical surface with a plurality circumferentially spaced winding slots, each winding slot extends along an axial length of the first cylindrical surface and formed to embed a segment of a single stator winding,each stator winding is pre-formed as a closed loop, two substantially parallel segments of each stator winding are formed to be embedded in a first and a second winding slot of the stator, with the second winding slot being the third adjacent winding slot to the first winding slot,each of the three stator windings includes a first winding head segment extending from the winding slots in axial direction of the stator, andthe first winding head segment of a first winding of the three stator windings is at least partially rotated and translated about an axis,wherein the planes of the connections of the second and the third stator windings are out of parallel alignment.
2 Assignments
0 Petitions
Accused Products
Abstract
In one aspect, a stator is provided having a first cylindrical surface with a plurality circumferentially spaced winding slots, each winding slot extending along an axial length of the first cylindrical surface and formed to embed a segment of a single stator winding, Each stator winding is pre-formed as a closed loop and two substantially parallel segments of each stator winding formed to be embedded in a first and a second winding slot of the stator, with the second winding slot being the third adjacent winding slot to the first winding slot. Each of the three stator windings has a first winding head segment leaving the winding slots in axial direction of the stator, the first winding head segment of a first winding of the three stator windings describing in space in parts a combination of a rotation about an axis and a translation along that axis.
25 Citations
17 Claims
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1. A group of three stator windings for a stator of an electric machine, wherein
the stator comprises a first cylindrical surface with a plurality circumferentially spaced winding slots, each winding slot extends along an axial length of the first cylindrical surface and formed to embed a segment of a single stator winding, each stator winding is pre-formed as a closed loop, two substantially parallel segments of each stator winding are formed to be embedded in a first and a second winding slot of the stator, with the second winding slot being the third adjacent winding slot to the first winding slot, each of the three stator windings includes a first winding head segment extending from the winding slots in axial direction of the stator, and the first winding head segment of a first winding of the three stator windings is at least partially rotated and translated about an axis, wherein the planes of the connections of the second and the third stator windings are out of parallel alignment.
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16. A group of three stator windings for a stator of an electric machine, wherein
the stator comprises a first cylindrical surface with a plurality circumferentially spaced winding slots, each winding slot extends along an axial length of the first cylindrical surface and formed to embed a segment of a single stator winding; -
each stator winding is pre-formed as a closed loop, two substantially parallel segments of each stator winding are formed to be embedded in a first and a second winding slot of the stator, with the second winding slot being the third adjacent winding slot to the first winding slot, each of the three stator windings includes a first winding head segment extending from the winding slots in axial direction of the stator, and the first winding head segment of a first winding of the three stator windings is at least partilly rotated and translated about an axis, wherein for the second and the third winding the first and/or the second winding head segments comprises a substantially straight connection between a curvature section within the plane of the first winding slot of the stator and a curvature section within the plane of the second winding slot of the stator, the connection being arranged in a plane substantially perpendicular to the planes of the first and second winding slots; and wherein the planes of the connections of the second and the third stator windings are out of parallel alignment.
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Specification