END TURN ARRANGEMENT
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Accused Products
Abstract
The invention relates to an end turn arrangement in a stator of a dynamoelectric machine. In order to reduce, in a simple fashion, the volume required for the end turns of the form-wound coils, the stator is formed of segments (1) that have a substantially circular arc-shaped cross-section and can be combined into a stator by adding one or more other segments (1) having the same design. Each segment (1) has recesses (6, 7), within which at least one first form-wound coil (3), which is bent outward in the radial direction of the stator in the region of the end turns, and at least one second form-wound coil (4), which is bent inward in the radial direction of the stator in the region of the end turns, are arranged in the form of a tiered winding.
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Citations
22 Claims
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1-9. -9. (canceled)
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10. A segment for a ring-shaped stator of a dynamoelectric machine, said segment having a substantially circular arc-shaped cross section and constructed for attachment to other said segments to form a stator, said segment having slots and comprising:
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at least one first form-wound coil arranged in the slots and bent outwards in a radial direction of the stator in a region of end turns; and at least one second form-wound coil arranged in the slots and bent inwards in the radial direction of the stator in the region of the end turns, wherein the first and second form-wound coils are arranged in the form of a tiered winding, and wherein the first and second form-wound coils are of same design and laid in the slots in opposite directions. - View Dependent Claims (11, 12, 13, 14)
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- 15. A ring-shaped stator, comprising at least two segments, each said segment having a substantially circular arc-shaped cross section and having slots for arrangement of at least one first form-wound coil which is bent outwards in a radial direction of the stator in a region of end turns, and at least one second form-wound coil which is bent inwards in the radial direction of the stator in the region of the end turns, wherein the first and second form-wound coils are arranged in the form of a tiered winding, and wherein the first and second form-wound coils are of same design and laid in the slots in opposite directions.
- 20. An electrical machine, comprising a ring-shaped stator which includes at least two segments, each said segment having a substantially circular arc-shaped cross section and having slots for arrangement of at least one first form-wound coil which is bent outwards in a radial direction of the stator in a region of end turns, and at least one second form-wound coil which is bent inwards in the radial direction of the stator in the region of the end turns, wherein the first and second form-wound coils are arranged in the form of a tiered winding, and wherein the first and second form-wound coils are of same design and laid in the slots in opposite directions.
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22. A wind turbine, comprising an electrical machine which includes a ring-shaped stator having at least two segments, each said segment having a substantially circular arc-shaped cross section and having slots for arrangement of at least one first form-wound coil which is bent outwards in a radial direction of the stator in a region of end turns, and at least one second form-wound coil which is bent inwards in the radial direction of the stator in the region of the end turns, wherein the first and second form-wound coils are arranged in the form of a tiered winding, and wherein the first and second form-wound coils are of same design and laid in the slots in opposite directions.
Specification