Stator module and motor

Patent metadata

Field	Value
Publication number	US-11909261-B2
Application number	US-201917059184-A
Country	US
Kind code	B2
Filing date	May 30, 2019
Priority date	May 31, 2018
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

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.

First claim

What is claimed is:

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 1 st slot, a 2 nd slot, . . . , an i th slot, . . . , an n th slot, . . . , and the like respectively, each of the plurality of stator slots has r slot layers, and the r slot layers are an a th layer, a b th layer, . . . , a j th layer, . . . , and an r th 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 r th layer of an i th slot is a start point of the first winding part, an r th 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 r th layer of the i th slot to an r th layer of an (i−5) th slot construct the first crossing segment; the r th layer of the (i−5) th slot to an a th 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 a th layer of the (i−5) th slot to an r th 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 r th layer of the (i−11) th slot to an r th layer of an (i−18) th slot construct the fourth crossing segment; the r th layer of the (i−18) th slot to an a th 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 a th layer of the (i−18) th slot to the r th 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.

2. The stator module according to claim 1 , wherein n=i.

3. 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.

4. A motor, comprising the stator module according to claim 1 .

5. 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 r th 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 r th layer of the (i−24) th slot to an r th layer of an (i−29) th slot construct the seventh crossing segment; the r th layer of the (i−29) th slot to an a th 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 a th layer of the (i−29) th slot to an r th 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 r th layer of the (i−35) th slot to an r th layer of the (i−42) th slot construct the tenth crossing segment; the r th layer of the (i−42) th slot to an a th 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 a th 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 i mth 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.

6. The stator module of claim 5 , wherein the i th 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.

7. 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 r th layer of an (n−47) th slot is a start point of the third winding part, an r th 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 r th layer of the (n−47) th slot to an r th layer of an (n−6) th slot construct the thirteenth crossing segment; the r th layer of the (n−6) th slot to an a th 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 n 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 a th layer of the (n−6) th slot to an r th 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 r th layer of the (n−12) th slot to an r

Assignees

• Byd Co Ltd

Inventors

• Shu Shenglang
• You Bin

Classifications

• H02K1/165 Primary

  Shape, form or location of the slots · CPC title

• H02K3/12

  arranged in slots · CPC title

• H02K3/28

  Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) · CPC title

• H02K2213/03

  Machines characterised by numerical values, ranges, mathematical expressions or similar information · CPC title

• H02K15/064

  Windings consisting of separate segments · CPC title