# US 11,909,261 B2 · Stator module and motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,261 B2 - Document ID: US11909261B2 - Status: Granted - Kind: B2 - Application number: 17/059,184 - Filed: 2019-05-30 - Published: 2021-07-22 - Granted: 2024-02-20 - Earliest claimed: 2018-05-31 - Assignees: BYD Company Limited - Applicants: BYD Company Limited - Inventors: Shenglang Shu; Bin You - Web page: https://patentgrep.com/patent/US11909261B2 ## CPC - H02K 1/165: {Shape, form or location of the slots} - H02K 3/12: arranged in slots - H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) - H02K 15/064: Windings consisting of separate segments - H02K 2213/03: Machines characterised by numerical values, ranges, mathematical expressions or similar information - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract A stator module (10) and a motor are provided. The stator module (10) includes a stator core (1) and a stator winding (2). The stator core (1) includes a plurality of stator slots (11), and the plurality of stator slots (11) are distributed in a circumferential direction of the stator core (1). A first winding coil (21) of each phase of the stator winding (2) includes a first winding part (211) and a second winding part (212) connected end to end, the first winding part (211) includes a first crossing segment (2111) to a sixth crossing segment (2116), and the second winding part (212) includes a seventh crossing segment (2121) to a twelfth crossing segment (2126). A second winding coil (22) of each phase of the stator winding (2) includes a third winding part (221) and a fourth winding part (222) connected end to end. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The stator module according to claim 1, wherein n=i. ### Claim 3 (depends on 1) The stator module according to claim 1, wherein the stator winding comprises a plurality of conductor segments, each of the conductor segments comprises a bent portion and a first in-slot portion and a second in-slot portion that are connected to the bent portion, and first in-slot portions and second in-slot portions that are of the plurality of conductor segments and that are located in adjacent layers are welded on a welding end. ### Claim 4 (depends on 1) A motor, comprising the stator module according to claim 1. ### Claim 5 (depends on 1) The stator module of claim 1, wherein the first winding coil further comprises a second winding part constituting an end segment of the first winding coil, wherein in the second winding part, the rth layer of the (i−24)th slot is a start point of the second winding part, a secondary outer layer of an (i−42)th slot is an end point of the second winding part, and the second winding part comprises a seventh crossing segment to a twelfth crossing segment, wherein the rth layer of the (i−24)th slot to an rth layer of an (i−29)th slot construct the seventh crossing segment; the rth layer of the (i−29)th slot to an ath layer of the (i−29)th slot construct the eighth crossing segment, and in the eighth crossing segment, the winding moves back and forth between the (i−29)th slot and an (i−23)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−29)th slot to an rth layer of an (i−35)th slot construct the ninth crossing segment, and in the ninth crossing segment, the winding moves back and forth between the (i−29)th slot and the (i−35)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−35)th slot to an rth layer of the (i−42)th slot construct the tenth crossing segment; the rth layer of the (i−42)th slot to an ath layer of the (i−42)th slot construct the eleventh crossing segment, and in the eleventh crossing segment, the winding moves back and forth between the (i−42)th slot and an (i−36)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−42)th slot to the secondary outer layer of the (i−42)th slot construct the twelfth crossing segment, and in the twelfth crossing segment, the winding moves back and forth between the (i−42)th slot and the imth 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 i is an integer greater than 42. ### Claim 6 (depends on 5) The stator module of claim 5, wherein the ith slot is a start slot, and an outermost layer of the start slot is connected to a first lead line; and for an end slot, five stator slots exist between the end slot and the start slot, and a secondary outer layer of the end slot is connected to a first star point line. ### Claim 7 (depends on 1) The stator module of claim 1, wherein the phase of the stator winding further comprises: a second winding coil of each phase of the stator winding comprises a third winding part and a fourth winding part connected end to end, the third winding part constructs a start segment of the second winding coil, and the fourth winding part constructs an end segment of the second winding coil, wherein in the third winding part, an rth layer of an (n−47)th slot is a start point of the third winding part, an rth layer of an (n−23)th slot is an end point of the third winding part, and the third winding part comprises a thirteenth crossing segment to an eighteenth crossing segment, wherein the rth layer of the (n−47)th slot to an rth layer of an (n−6)th slot construct the thirteenth crossing segment; the rth layer of the (n−6)th slot to an ath layer of the (n−6)th slot is a fourteenth crossing segment, and in the fourteenth crossing segment, the winding moves back and forth between the (n−6)th slot and an nth 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 (n−6)th slot to an rth layer of an (n−12)th slot construct the fifteenth crossing segment, and in the fifteenth crossing segment, the winding moves back and forth between the (n−6)th slot and the (n−12)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 (n−12)th slot to an rth layer of an (n−17)th slot construct the sixteenth crossing segment; the rth layer of the (n−17)th slot to an ath layer of the (n−17)th slot construct the seventeenth crossing segment, and in the seventeenth crossing segment, the winding moves back and forth between the (n−17)th slot and an (n−11)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 (n−17)th slot to the rth layer of the (n−23)th slot construct the eighteenth crossing segment, and in the eighteenth crossing segment, the winding moves back and forth between the (n−17)th slot and the (n−23)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, wherein n is an integer greater than 47. ### Claim 8 (depends on 7) The stator module of claim 7, wherein in the fourth winding part, the rth layer of the (n−23)th slot is a start point of the fourth winding part, a secondary outer layer of an (n−41)th slot is an end point of the fourth winding part, and the fourth winding part comprises a nineteenth crossing segment to a twenty-fourth crossing segment, wherein the rth layer of the (n−23)th slot to an rth layer of an (n−30)th slot construct the nineteenth crossing segment; the rth layer of the (n−30)th slot to an ath layer of the (n−30)th slot construct the twentieth crossing segment, and in the twentieth crossing segment, the winding moves back and forth between the (n−30)th slot and an (n−24)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 (n−30)th slot to an rth layer of an (n−36)th slot construct the twenty-first crossing segment, and in the twenty-first crossing segment, the winding moves back and forth between the (n−30)th slot and the (n−36)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 (n−36)th slot to an rth layer of the (n−41)th slot construct the twenty-second crossing segment; the rth layer of the (n−41)th slot to an ath layer of the (n−41)th slot construct the twenty-third crossing segment, and in the twenty-third crossing segment, the winding moves back and forth between the (n−41)th slot and an (n−35)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 (n−41)th slot to the secondary outer layer of the (n−41)th slot construct the twenty-fourth crossing segment, and in the twenty-fourth crossing segment, the winding moves back and forth between the (n−41)th slot and the (n−47)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, wherein n is an integer greater than 47. ### Claim 9 (depends on 8) The stator module of claim 8, wherein the nth slot is a start slot, and an outermost layer of the start slot is connected to a second lead line; and for an end slot, five stator slots exist between the end slot and the start slot, and a secondary outer layer of the end slot is connected to a second star point line. ### Claim 10 (depends on 9) The stator module according to claim 9, wherein the conductor segments comprise a first-class conductor segment, a second-class conductor segment, and a third-class conductor segment, a pitch between a first in-slot portion and a second in-slot portion of the first-class conductor segment is (y−1) stator slots, a pitch between a first in-slot portion and a second in-slot portion of the second-class conductor segment is y stator slots, and a pitch between a first in-slot portion and a second in-slot portion of the third-class conductor segment is (y+1) stator slots, wherein y is an integer greater than 1 and y=z/2p. ### Claim 11 (depends on 10) The stator module according to claim 10, wherein the first-class conductor segment is located at the first crossing segment, the seventh crossing segment, the sixteenth crossing segment, and the twenty-second crossing segment, the first in-slot portion of the first-class conductor segment is located at an outermost layer of a stator slot, and the second in-slot portion of the first-class conductor segment is located at an outermost layer of another stator slot. ### Claim 12 (depends on 10) The stator module according to claim 10, wherein the second-class conductor segment is located at the second crossing segment, the third crossing segment, the fifth crossing segment, the sixth crossing segment, the eighth crossing segment, the ninth crossing segment, the eleventh crossing segment, the twelfth crossing segment, the fourteenth crossing segment, the fifteenth crossing segment, the seventeenth crossing segment, the eighteenth crossing segment, the twentieth crossing segment, the twenty-first crossing segment, the twenty-third crossing segment, and the twenty-fourth crossing segment; and the second-class conductor segment comprises an intra-layer conductor segment and an inter-layer conductor segment, wherein a first in-slot portion of the intra-layer conductor segment is located at an outermost layer of a stator slot, and a second in-slot portion is located at an outermost layer of another stator slot, or a first in-slot portion of the intra-layer conductor segment is located at an innermost layer of a stator slot, and a second in-slot portion is located at an innermost layer of another stator slot; and a first in-slot portion of the inter-layer conductor segment is located at a middle slot layer of a stator slot, and a second in-slot portion is located at a middle slot layer of another stator slot, which are located at different layers. ### Claim 13 (depends on 10) The stator module according to claim 10, wherein the third-class conductor segment is located at the fourth crossing segment, the tenth crossing segment, the thirteenth crossing segment, and the nineteenth crossing segment, the first in-slot portion of the third-class conductor segment is located at an outermost layer of a stator slot, and the second in-slot portion of the third-class conductor segment is located at an outermost layer of another stator slot. ### Claim 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. ### Claim 15 (depends on 14) The stator module of claim 14, wherein the first winding coil further comprises a second winding part constituting an end segment of the first winding coil, wherein in the second winding part, the fth layer of the 25th slot is a start point of the second winding part, a secondary outer layer of a 7th slot is an end point of the second winding part, and the second winding part comprises a seventh crossing segment to a twelfth crossing segment, wherein the fth layer of the 25th slot to an fth layer of a 20th slot construct the seventh crossing segment; the fth layer of the 20th slot to an ath layer of the 20th slot construct the eighth crossing segment, and in the eighth crossing segment, the winding moves back and forth between the 20th slot and a 26th 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 20th slot to an fth layer of a 14th slot construct the ninth crossing segment, and in the ninth crossing segment, the winding moves back and forth between the 20th slot and the 14th 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 14th slot to an fth layer of the 7th slot construct the tenth crossing segment; the fth layer of the 7th slot to an ath layer of the 7th slot construct the eleventh crossing segment, and in the eleventh crossing segment, the winding moves back and forth between the 7th slot and a 13th 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 7th slot to the secondary outer layer of the 7th slot construct the twelfth crossing segment, and in the twelfth crossing segment, the winding moves back and forth between the 7th slot and the 1st slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core. ### Claim 16 (depends on 15) The stator module of claim 15, wherein the 1st slot is a start slot, and an outermost layer of the start slot is connected to a first lead line; and for an end slot, five stator slots exist between the end slot and the start slot, and a secondary outer layer of the end slot is connected to a first star point line. ### Claim 17 (depends on 14) The stator module of claim 14, wherein the stator module further comprises: a second winding coil of each phase of the stator winding comprises a third winding part and a fourth winding part connected end to end, the third winding part constructs a start segment of the second winding coil, and the fourth winding part constructs an end segment of the second winding coil; in the third winding part, an fth layer of a 2nd slot is a start point of the third winding part, an fth layer of a 26th slot is an end point of the third winding part, and the third winding part comprises a thirteenth crossing segment to an eighteenth crossing segment, wherein the fth layer of the 2nd slot to an fth layer of a 43th slot construct the thirteenth crossing segment; the fth layer of the 43th slot to an ath layer of the 43th slot construct the fourteenth crossing segment, and in the fourteenth crossing segment, the winding moves back and forth between the 43th slot and the 1st 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 43th slot to an fth layer of a 37th slot construct the fifteenth crossing segment, and in the fifteenth crossing segment, the winding moves back and forth between the 43th slot and the 37th 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 37th slot to an fth layer of a 32nd slot construct the sixteenth crossing segment; the fth layer of the 32nd slot to an ath layer of the 32nd slot construct the seventeenth crossing segment, and in the seventeenth crossing segment, the winding moves back and forth between the 32nd slot and a 38th 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 32nd slot to the fth layer of the 26th slot construct the eighteenth crossing segment, and in the eighteenth crossing segment, the winding moves back and forth between the 32nd slot and the 26th slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core. ### Claim 18 (depends on 17) The stator module of claim 17, wherein in the fourth winding part, the fth layer of the 26th slot is a start point of the fourth winding part, a secondary outer layer of an 8th slot is an end point of the fourth winding part, and the fourth winding part comprises a nineteenth crossing segment to a twenty-fourth crossing segment, wherein the fth layer of the 26th slot to an fth layer of a 19th slot construct the nineteenth crossing segment; the fth layer of the 19th slot to an ath layer of the 19th slot construct the twentieth crossing segment, and in the twentieth crossing segment, the winding moves back and forth between the 19th slot and the 25th 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 19th slot to an fth layer of the 13th slot construct the twenty-first crossing segment, and in the twenty-first crossing segment, the winding moves back and forth between the 19th slot and the 13th 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 13th slot to an fth layer of the 8th slot construct the twenty-second crossing segment; the fth layer of the 8th slot to an ath layer of the 8th slot construct the twenty-third crossing segment, and in the twenty-third crossing segment, the winding moves back and forth between the 8th slot and the 14th 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 8th slot to the secondary outer layer of the 8th slot construct the twenty-fourth crossing segment, and in the twenty-fourth crossing segment, the winding moves back and forth between the 8th slot and the 2nd slot and is wound from the inner side of the radial direction to the outer side of the radial direction of the stator core. ### Claim 19 (depends on 18) The stator module of claim 18, wherein the 1st slot is a start slot, and an outermost layer of the start slot is connected to a second lead line; and for an end slot, five stator slots exist between the end slot and the start slot, and a secondary outer layer of the end slot is connected to a second star point line. ### Claim 20 (depends on 14) A motor, comprising the stator module according to claim 14.