Patent ID: 11909260
Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 8:
9. An electric machine comprising a stator including:
a stator yoke longitudinally extending along a longitudinal axis of the stator,
a plurality of teeth protruding according to a radial direction orthogonal to the longitudinal axis from the stator yoke to respective radial tooth ends,
a plurality of slots extending radially from the stator yoke to respective radial slot ends, the plurality of slots being circumferentially interposed between the teeth of the stator, each slot including a bottom portion adjacent to the stator yoke and a top portion adjacent to the respective radial slot end,
a plurality of coils housed in the plurality of slots, each slot housing at least one coil in the bottom portion and at least another coil in the top portion,
wherein each respective coil housed in the bottom portion of a first slot of the plurality of slots is connected to another respective coil housed in the top portion of a second slot of the plurality of slots,
wherein the stator comprises a plurality of segments, each segment comprising two end slots at respective circumferential ends, each end slot having a circumferential extension corresponding to half a circumferential extension of each of the plurality of slots of the stator, each end slot housing at least one coil in one of the bottom portion and the top portion, wherein the other of the bottom portion and the top portion is free of coils, wherein two circumferentially adjacent segments are joined together to form a full slot.