Patent ID: 11909261
Assignee: BYD COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A stator module, wherein the stator module is applicable to a motor comprising: z slots, 2p poles, and m phases, wherein z, p, and m are integers; each pole and phase has q slots, q is an integer and equals z/m/(2p); and a plurality of parallel branches, wherein a number of the parallel branches is a, a being an integer no greater than q:
the stator module comprises a stator core and a stator winding, the stator core has 48 stator slots, the plurality of stator slots are distributed in a circumferential direction of the stator core, in the circumferential direction of the stator core, the plurality of stator slots are a 1st slot, a 2nd slot, . . . , and a 48th slot respectively, each of the plurality of stator slots has six slot layers, and the six slot layers are an ath layer, a bth layer, . . . , and an fth layer arranged along a direction from an inner side to an outer side in a radial direction of the stator core;
a first winding coil of each phase of the stator winding comprises a first winding part constituting a start segment of the first winding coil;
in the first winding part, an fth layer of a 1st slot is a start point of the first winding part, an fth layer of a 25th slot is an end point of the first winding part, and the first winding part comprises a first crossing segment to a sixth crossing segment, wherein the fth layer of the 1st slot to an fth layer of a 44th slot construct the first crossing segment; the fth layer of the 44th slot to an ath layer of the 44th slot construct the second crossing segment, and in the second crossing segment, the winding moves back and forth between the 44th slot and a 2nd slot and is wound from the outer side of the radial direction to the inner side of the radial direction of the stator core; the ath layer of the 44th slot to an fth layer of a 38th slot construct the third crossing segment, and in the third crossing segment, the winding moves back and forth between the 44th slot and the 38th slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core; the fth layer of the 38th slot to an fth layer of a 31st slot construct the fourth crossing segment; the fth layer of the 31st slot to an ath layer of the 31st slot construct the fifth crossing segment, and in the fifth crossing segment, the winding moves back and forth between the 31st slot and a 37th slot and is wound from the outer side of the radial direction to the inner side of the radial direction of the stator core; and the ath layer of the 31st slot to the fth layer of the 25th slot construct the sixth crossing segment, and in the sixth crossing segment, the winding moves back and forth between the 31st slot and the 25th slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core,
wherein b and f are integers.