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

Claim 0:
1. 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 a plurality of 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, . . . , an ith slot, . . . , an nth slot, . . . , and the like respectively, each of the plurality of stator slots has r slot layers, and the r slot layers are an ath layer, a bth layer, . . . , a jth layer, . . . , and an rth arranged along a direction from an inner side to an outer side in a radial direction of the stator core, wherein n, b, j, and r are integers and i is an integer greater than 24;
a first winding coil of a 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 rth layer of an ith slot is a start point of the first winding part, an rth layer of an (i−24)th 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 rth layer of the ith slot to an rth layer of an (i−5)th slot construct the first crossing segment; the rth layer of the (i−5)th slot to an ath layer of the (i−5)th slot construct the second crossing segment, and in the second crossing segment, the winding moves back and forth between the (i−5)th slot and an (i−47)th 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 (i−5)th slot to an rth layer of an (i−11)th slot construct the third crossing segment, and in the third crossing segment, the winding moves back and forth between the (i−5)th slot to the (i−11)th 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 rth layer of the (i−11)th slot to an rth layer of an (i−18)th slot construct the fourth crossing segment; the rth layer of the (i−18)th slot to an ath layer of the (i−18)th slot construct the fifth crossing segment, and in the fifth crossing segment, the winding moves back and forth between the (i−18)th slot and an (i−12)th 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 (i−18)th slot to the rth layer of the (i−24)th slot construct the sixth crossing segment, and in the sixth crossing segment, the winding moves back and forth between the (i−18)th slot and the (i−24)th slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core.