Electrical machine having a segmented stator or rotor
AssigneeSiemens Gamesa Renewable Energy A/S
InventorsZiad Azar, Edom Demissie, Alexander Duke
Life of this patent
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Abstract
A stator or rotor for an electrical machine including a plurality of segments is provided, the plurality of segments being circumferentially joined at their ends in such a way that a segment circumferential gap is interposed between two circumferentially adjacent segments, the stator or rotor including at least one spacing element provided between two circumferentially adjacent segments for preventing the coil windings of two circumferentially adjacent segments contacting each other.
Claims15
A stator or rotor for an electrical machine including a plurality of segments, wherein each segment includes:
- a segment body circumferentially extending about a longitudinal axis of the segment between two circumferential ends, the segment body including:
- a plurality of teeth protruding according to a radial direction orthogonal to the longitudinal axis from a yoke of the segment body;
- a plurality of slots, circumferentially interposed between the teeth, the plurality of slots being circumferentially distributed between two end slots, each end slot being circumferentially comprised between a respective tooth and a respective circumferential end, the plurality of slots comprising a plurality of intermediate slots circumferentially comprised between the two end slots;
- each segment further including a coil winding arranged in the segment body, the coil winding including at least two side coil portions respectively housed in the end slots;
- and
- wherein at least two segments are circumferentially joined together at their ends in such a way that a segment circumferential gap interposed between two circumferentially adjacent segments, and wherein the stator or rotor includes at least one spacing element provided between two circumferentially adjacent segments for preventing the coil windings of two circumferentially adjacent segments from contacting each other.
A segment for a stator or rotor for an electrical machine, wherein the segment includes:
- a segment body circumferentially extending about a longitudinal axis of the segment between two circumferential ends, the segment body including:
- a plurality of teeth protruding according to a radial direction orthogonal to the longitudinal axis from a yoke of the segment body;
- a plurality of slots, circumferentially interposed between the teeth of the stator or rotor, the plurality of slots being circumferentially distributed between two end slots, each end slot being circumferentially comprised between a respective tooth and a respective circumferential end, the plurality of slots comprising a plurality of intermediate slots circumferentially comprised between the two end slots;
- a coil winding arranged in the segment body, the coil winding including at least two side coil portions respectively housed in the end slots;
- and
- wherein the yoke comprises at least at one respective circumferential end a protrusion circumferentially protruding with respect to the side coil portion housed in the end slot at the respective circumferential end.
Dependencies are inferred from the claim text.