CN217486256U

CN217486256U - Motor stator and motor

Info

Publication number: CN217486256U
Application number: CN202220975089.3U
Authority: CN
Inventors: 张辉
Original assignee: Borgwarner Powertrain Tianjin Co ltd
Current assignee: Borgwarner Powertrain Tianjin Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-09-23
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to a motor field discloses a motor stator and motor, and every conductor of conductor group includes: for insertion inside two slots in different slots, each conductor of the conductor set further comprising: one end of the stator core positioned outside the axial slots is connected with two welding ends inside the two slots; the phase winding further includes: and the outgoing line is positioned on the radial outermost layer of the stator core and/or positioned on the radial innermost layer of the stator core and is positioned at the non-welding end of the stator winding. The utility model discloses lead to and adopted complete symmetrical structure on magnetic circuit through the winding structure, eliminated because the circulation current problem that asymmetric structure produced, it is undulant to reduce the torque, and the noise reduction adopts single conductor, simplifies manufacturing procedure, has reduced manufacturing cost, improves machining efficiency.

Description

Motor stator and motor

Technical Field

The utility model relates to a motor field especially relates to a motor stator and motor.

Background

In the prior art, a stator winding comprises various types of conductors, and various types of conductor coils penetrate into a slot of a stator core according to a certain arrangement mode to form a required single-phase winding or multi-phase winding of a motor. The hairpin coils used in the prior art are various, the manufacturing process is complex, the production cost is high, and the processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor stator and motor has adopted complete symmetrical structure on magnetic circuit through the winding structure, has eliminated because the circulation current problem that asymmetric structure produced, and it is undulant to reduce the torque, and the noise reduction adopts single conductor, simplifies manufacturing procedure, has reduced manufacturing cost, improves machining efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

an electric machine stator comprising:

a stator core having a ring shape and having a plurality of slots uniformly arranged in a proportion of three slots provided for each pole and each phase in a circumferential direction;

and

a stator winding having a plurality of phase windings mounted to a plurality of slots of a stator core;

3X branch windings in each phase winding are sequentially connected in parallel along the circumferential direction of the stator core, wherein X is an integer greater than or equal to 1;

the stator winding includes: the plurality of conductor groups are sequentially arranged along the circumferential direction of the stator core;

each conductor set includes: a first conductor and two second conductors, a first conductor of a conductor set surrounding two second conductors of the conductor set;

or, each conductor set includes: two first conductors and a second conductor, two first conductors of a conductor set surrounding a second conductor of the conductor set;

each conductor of the conductor set includes: for insertion inside two slots in different slots, each conductor of the conductor set further comprising: one end of the stator core outside the axial slots is connected with two welding ends inside the two slots;

the phase winding further includes: and the outgoing line is positioned on the radial outermost layer of the stator core and/or positioned on the radial innermost layer of the stator core and is positioned at the non-welding end of the stator winding.

Further, when the pitch between the inside of the two slots of the first conductor of the conductor group of the phase winding is a long pitch and the pitch between the inside of the two slots of the second conductor of the conductor group of the phase winding is a short pitch, the pitch between the two welding terminals connected at the axially outer ends of the slots of the stator core in the phase winding is a full pitch.

Further, when the pitch between the two inside slots of the two first conductors of the conductor set of the phase winding is a long pitch and the pitch between the two inside slots of one second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected at the end of the phase winding located outside the axial slots of the stator core is a short pitch.

Further, when the pitch between the inside of the two slots of one first conductor of the conductor group of the phase winding is a long pitch and the pitch between the inside of the two slots of the two second conductors of the conductor group of the phase winding is a full pitch, the pitch between the two welding terminals connected at the axially outer ends of the slots of the stator core in the phase winding is a short pitch.

Further, when the pitch between the two inside slots of the two first conductors of the conductor set of the phase winding is a full pitch and the pitch between the two inside slots of one second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected at one end of the phase winding outside the axial slots of the stator core is a long pitch.

Further, when the pitch between the inside of the two slots of one first conductor of the conductor set of the phase winding is a long pitch and the pitch between the inside of the two slots of the two second conductors of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected at the axially outer ends of the slots of the stator core is a long pitch.

Further, when the pitch between the two slot interiors of the two first conductors of the conductor sets located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 11, the pitch between the two slot interiors of one second conductor of the conductor sets located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 8, the pitch between the two slot interiors of the two first conductors of the conductor sets located in the radially other layers in the radial direction of the stator core in the phase winding is 10, the pitch between the connecting welding ends located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 7, the pitch between the connecting welding ends located in the radially other layers in the radial direction of the stator core in the radial direction is a short pitch, and the pitch between the connecting welding ends located in the radially other layers in the radial direction of the stator core in the radial direction is a full pitch, wherein M is 4Y +2, and Y is an integer of 1 or more.

Further, when the pitch between the inside of two slots of one first conductor of the conductor set located at the M/2 th layer and the M/2+1 th layer in the radial direction of the stator core in the phase winding is 12, the pitch between the inside of two slots of two second conductors of the conductor set located at the M/2 th layer and the M/2+1 th layer in the radial direction of the stator core in the phase winding is 9, the pitch between the inside of two slots of one first conductor of the conductor set located at the other layer in the radial direction of the stator core in the phase winding is 11, the pitch between the connected welding terminals located at the M/2 th layer and the M/2+1 th layer in the radial direction of the stator core in the phase winding is 8, the pitch between the connected welding terminals located at the M/2 th layer and the M/2+1 th layer in the radial direction of the stator core in the radial direction of the other layer in the radial direction of the stator core is a short pitch, and the pitch between the connected welding terminals located at the other layer in the radial direction of the stator core in the radial direction is a full pitch, wherein M is 4Y +2, and Y is an integer of 1 or more.

Further, when the pitch between the inside of two slots of two first conductors of the conductor sets located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 9, the pitch between the inside of two slots of one second conductor of the conductor sets located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 6, the pitch between the inside of two slots of two first conductors of the conductor sets located in the radially remaining layers in the radial direction of the stator core in the phase winding is 10, the pitch between the connecting welding terminals located in the (M/2) th and (M/2 + 1) th layers in the radial direction of the stator core in the phase winding is 7, the pitch between the connecting welding terminals located in the radially remaining layers in the radial direction of the stator core in the radial direction is a long pitch, and the pitch between the connecting welding terminals located in the radially remaining layers in the radial direction of the stator core in the radial direction is a full pitch, wherein M is 4Y +2, and Y is an integer of 1 or more.

Further, when the pitch between the inside of two slots of one first conductor of the conductor set located at the (M/2) th layer and the (M/2 + 1) th layer in the radial direction of the stator core in the phase winding is 10, the pitch between the inside of two slots of two second conductors of the conductor set located at the (M/2) th layer and the (M/2 + 1) th layer in the radial direction of the stator core in the phase winding is 7, the pitch between the inside of two slots of one first conductor of the conductor set located at the other layer in the radial direction of the stator core in the phase winding is 11, the pitch between the connecting welding ends located at the (M/2) th layer and the (M/2 + 1) th layer in the radial direction of the stator core in the phase winding is 8, the pitch between the connecting welding ends located at the (M/2) th layer and the (M/2 + 1) th layer in the radial direction of the stator core in the other layer in the radial direction of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer of 1 or more.

In order to achieve the above object, the present invention also provides a motor including the above motor stator.

Use the technical scheme of the utility model, a motor stator and motor, include: a stator core having a ring shape and having a plurality of slots uniformly arranged in a proportion of three slots provided for each pole and each phase in a circumferential direction; and a stator winding having a plurality of phase windings mounted to the plurality of slots of the stator core; 3X branch windings in each phase winding are sequentially connected in parallel along the circumferential direction of the stator core, wherein X is an integer greater than or equal to 1; the stator winding includes: the plurality of conductor groups are sequentially arranged along the circumferential direction of the stator core; each conductor set includes: a first conductor and two second conductors, a first conductor of a conductor set surrounding two second conductors of the conductor set; or, each conductor set includes: two first conductors and one second conductor of a conductor set, the two first conductors of the conductor set surrounding the one second conductor of the conductor set; each conductor of the conductor set includes: for insertion inside two slots in different slots, each conductor of the conductor set further comprising: one end of the stator core positioned outside the axial slots is connected with two welding ends inside the two slots; the phase winding further includes: and the outgoing line is positioned on the radial outermost layer of the stator core and/or positioned on the radial innermost layer of the stator core and is positioned at the non-welding end of the stator winding. The winding structure adopts a completely symmetrical structure on a magnetic circuit, eliminates the problem of circulating current generated by an asymmetrical structure, reduces torque fluctuation and noise, adopts a single conductor, simplifies the manufacturing process, reduces the production cost and improves the processing efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a motor stator in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a phase winding according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a conductor set according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another embodiment of the present invention;

fig. 5A is a schematic diagram of a portion of a plug end plane of a middle phase winding according to an embodiment of the present invention;

fig. 5B is a schematic diagram of another part of the plug end plane of the phase winding according to an embodiment of the present invention;

fig. 5C is a schematic expanded view of a part of a welding end plane of a phase winding according to an embodiment of the present invention;

fig. 5D is a schematic expanded view of another portion of the welding end plane of the phase winding according to the first embodiment of the present invention;

fig. 6A is a schematic diagram of a part of the plug end plane of the phase winding according to the second embodiment of the present invention;

fig. 6B is a schematic plane development view of another part of the plug end of the phase winding according to the second embodiment of the present invention;

fig. 6C is a schematic expanded view of a part of the welding end plane of the phase winding according to the second embodiment of the present invention;

fig. 6D is a schematic expanded view of another welding end plane of the phase winding according to the second embodiment of the present invention;

fig. 7A is a schematic diagram of a part of the plug end plane of the phase winding in the third embodiment of the present invention;

fig. 7B is a schematic diagram of another part of the plug end plane of the phase winding in the third embodiment of the present invention;

fig. 7C is a schematic diagram of a part of a welding end plane of a phase winding in the third embodiment of the present invention;

fig. 7D is a schematic expanded view of another part of the welding end plane of the phase winding in the third embodiment of the present invention;

fig. 8A is a schematic diagram of a part of a plug end plane of a phase winding according to an embodiment of the present invention;

fig. 8B is a schematic diagram of another part of the plug end plane of the phase winding according to the embodiment of the present invention;

fig. 8C is a schematic diagram of a part of a welding end plane of a phase winding in the fourth embodiment of the present invention;

fig. 8D is a schematic expanded view of another portion of the welding end plane of the phase winding according to the embodiment of the present invention;

fig. 9A is a schematic diagram of a part of a plug end plane of a phase winding in the fifth embodiment of the present invention;

fig. 9B is a schematic diagram of another part of the plug end plane of the phase winding according to the embodiment of the present invention;

fig. 9C is a schematic diagram of a part of a welding end plane of a phase winding in the fifth embodiment of the present invention;

fig. 9D is a schematic expanded view of another welding end plane of the phase winding in the fifth embodiment of the present invention;

fig. 10A is a schematic diagram of a part of a plug end plane of a phase winding in the seventh embodiment of the present invention;

fig. 10B is a schematic diagram of another part of the plug end plane of the phase winding in the seventh embodiment of the present invention;

fig. 10C is a schematic diagram of a part of a welding end plane of a phase winding in the seventh embodiment of the present invention;

fig. 10D is a schematic expanded view of another portion of the welding end plane of the phase winding in the seventh embodiment of the present invention;

fig. 11A is a schematic diagram of a part of a plug end plane of an eighth phase winding according to an embodiment of the present invention;

fig. 11B is a schematic diagram of another part of the plug end plane of the eight phase winding according to the embodiment of the present invention;

fig. 11C is a schematic diagram of a part of a welding end plane of an eighth phase winding according to an embodiment of the present invention;

fig. 11D is a schematic expanded view of another welding end plane of the eight phase winding according to the embodiment of the present invention;

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

It should be noted that the terms "first", "second", and the like in the description and claims of the present invention and the accompanying drawings are used for distinguishing different objects, and are not used for limiting a specific order. The embodiments of the present invention can be implemented independently, and can be implemented by combining each other between the embodiments, and the embodiments of the present invention are not limited to this.

In the application, the pitch is the interval between the inner parts of two grooves of the same conductor along the circumferential direction, and the pitch is the interval between the inner part of the groove corresponding to one welding end of one conductor and the inner part of the groove corresponding to one welding end of the other conductor along the circumferential direction; note that, in the present application, the extending direction of the out-slot terminals in the circumferential direction of the stator core is the extending direction from the inside of the first slot of the conductor to the inside of the second slot of the conductor in the circumferential direction of the stator core.

As shown in fig. 1, an embodiment of the present invention provides a motor stator, including: a stator core 20, the stator core 20 being annular and having a plurality of slots 21 uniformly arranged in a proportion of three per pole per phase along a circumferential direction of the stator core, the stator core having 54 slots 21 uniformly arranged in a proportion of three per pole per phase along a circumferential direction of the stator core in the present embodiment, the plurality of slots 21 being formed on a radial inner surface of the stator core and spaced apart at a predetermined slot pitch along a circumferential direction of the stator core, and further, in the present embodiment, the stator core 20 defines one tooth portion 22 by two adjacent slots 21, the stator core 20 is formed by laminating a plurality of annular magnetic steel plates to form two

end surfaces

25, 26 in an axial direction of the stator core, and other conventional metal plates may be used instead of the magnetic steel plates;

as shown in fig. 1 to 11D, in the embodiment, the stator winding 10 includes a plurality of phase windings mounted on the stator core 20 so as to be different from each other in electrical phase, in which 3X branch windings in each phase winding are sequentially connected in parallel in the stator core circumferential direction, X is 1 in the present embodiment, that is, 3 branch windings in each phase winding are sequentially connected in parallel in the stator core circumferential direction in the first to tenth embodiments.

Exemplarily, as shown in fig. 1 to 11D, in an embodiment, the stator winding 10 includes: 16X3 conductor groups 500,48 conductor groups 500 are arranged in sequence along the circumferential direction of the stator core 10; as shown in fig. 4, in the second embodiment, the fourth embodiment, the sixth embodiment, the seventh embodiment and the tenth embodiment, each conductor set 500 includes: a first conductor and two second conductors, one first conductor of conductor set 500 surrounding two second conductors of conductor set 500; as shown in fig. 5A to 5D, in the first embodiment, the third embodiment, the fifth embodiment, the eighth embodiment and the ninth embodiment, each conductor set 500 includes: two first conductors and one second conductor of the conductor set, the two first conductors of the conductor set surrounding the one second conductor of the conductor set;

referring to fig. 1 to 11D, in the first to tenth embodiments, the stator winding 10 includes: 48 conductor sets 500, the stator winding 10 is described with U-phase winding, and the positions of the remaining two phase windings and the U-phase winding are shifted by 3 slots and 6 slots in sequence along the circumferential direction of the stator core, in conjunction with fig. 5A to 5D, in the first embodiment, the first conductor set 500 in the U-phase winding includes two first conductors and one second conductor, wherein the first conductor in the first conductor set 500 is located in the 1 st slot and the 11 th slot on the 2 nd layer in the radial direction of the stator core, the second conductor in the first conductor set 500 is located in the 2 nd slot and the 12 th slot on the 1 st layer in the radial direction of the stator core, the second conductor in the first conductor set 500 is located in the 3 rd slot and the 10 th slot on the 2 nd layer in the radial direction of the stator core, and the conductor structure forms of the remaining 15 conductor sets of the U-phase winding are the same as the structure form of the first conductor set 500, where the U-phase winding is not shifted, Further details are given to the concrete slot layers corresponding to the remaining 47 conductor groups of the V-phase winding and the W-phase winding; that is, in the first embodiment, the conductor set 500 includes two first conductors and one second conductor; with reference to fig. 6A to 6D, in the second embodiment, the first conductor group 500 in the U-phase winding includes a first conductor and two second conductors, where the first conductor in the first conductor group 500 is located in the radial 2 nd layer 1 st slot and the 1 st layer 12 th slot of the stator core, the first second conductor in the first conductor group 500 is located in the radial 2 nd layer 2 nd slot and the 1 st layer 10 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd layer 3 rd slot and the 1 st layer 11 th slot of the stator core, the conductor structure form of the remaining 15 conductor groups of the U-phase winding is the same as the structure form of the first conductor group 500, and further description is not given to the specific slot layers corresponding to the remaining 47 conductor groups of the U-phase winding, the V-phase winding, and the W-phase winding; that is, in the second embodiment, the conductor set 500 includes one first conductor and two second conductors; in the first and second embodiments, the first conductor group 500 of the U-phase winding is located in the 1 st, 2 nd, and 3 rd slots of the 2 nd layer and the 10 th, 11 th, and 12 th slots of the 1 st layer in the radial direction of the stator core; the second conductor group 500 in the U-phase winding is located in the 1 st slot, the 2 nd slot, the 3 rd slot of the 4 th layer and the 10 th slot, the 11 th slot and the 12 th slot of the 3 rd layer in the radial direction of the stator core; a third conductor group 500 in the U-phase winding is positioned in the 1 st slot, the 2 nd slot, the 3 rd slot of the 6 th layer and the 10 th slot, the 11 th slot and the 12 th slot of the 5 th layer in the radial direction of the stator core; a fourth conductor group 500 in the U-phase winding is positioned in a 10 th slot, a 11 th slot and a 12 th slot of a 2 nd layer and a 19 th slot, a 20 th slot and a 21 st slot of a 3 rd layer in the radial direction of the stator core; a fifth conductor group 500 in the U-phase winding is positioned in the 10 th slot, the 11 th slot, the 12 th slot of the 4 th layer and the 19 th slot, the 20 th slot and the 21 st slot of the 5 th layer in the radial direction of the stator core; the sixth conductor group 500 in the U-phase winding is located in the 19 th, 20 th, 21 st and 3 rd slots of the radial layer 2, 29 th and 30 th slots of the stator core; the seventh conductor group 500 in the U-phase winding is located in the 19 th, 20 th, 21 st and 5 th slots of the 4 th, 29 th and 30 th layers in the radial direction of the stator core; the eighth conductor group 500 in the U-phase winding is located in the 28 th, 29 th and 30 th slots of the 2 nd layer and the 37 th, 38 th and 39 th slots of the 1 st layer in the radial direction of the stator core; a ninth conductor group 500 in the U-phase winding is positioned in the 28 th slot, the 29 th slot and the 30 th slot of the 4 th layer and the 37 th slot, the 38 th slot and the 39 th slot of the 3 rd layer in the radial direction of the stator core; a tenth conductor group 500 in the U-phase winding is positioned in the 28 th, 29 th and 30 th slots of the 6 th layer and the 37 th, 38 th and 39 th slots of the 5 th layer in the radial direction of the stator core; the eleventh conductor group 500 in the U-phase winding is located in the 37 th, 38 th and 39 th slots of the 2 nd layer and the 46 th, 47 th and 48 th slots of the 1 st layer in the radial direction of the stator core; the twelfth conductor group 500 in the U-phase winding is located in the 37 th, 38 th and 39 th slots of the 4 th layer and the 46 th, 47 th and 48 th slots of the 3 rd layer in the radial direction of the stator core; the thirteenth conductor group 500 in the U-phase winding is located in the 37 th, 38 th, 39 th slots of the 6 th layer and the 46 th, 47 th, 48 th slots of the 5 th layer in the radial direction of the stator core; a fourteenth conductor group 500 in the U-phase winding is located in the 46 th, 47 th and 48 th slots of the 2 nd layer and the 1 st, 2 nd and 3 rd slots of the 1 st layer in the radial direction of the stator core; a fifteenth conductor group 500 in the U-phase winding is positioned in the 46 th slot, the 47 th slot, the 48 th slot of the 4 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 3 rd layer in the radial direction of the stator core; a sixteenth conductor group 500 in the U-phase winding is positioned in the 46 th slot, the 47 th slot, the 48 th slot of the 6 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 5 th layer in the radial direction of the stator core; namely, the U-phase winding includes: the 16 conductor groups 500 and the 16 conductor groups 500 are sequentially arranged along the circumferential direction of the stator core 10, and of course, the positions of the conductor groups 500 of the V-phase winding and the W-phase winding and the positions of the conductor groups 500 of the U-phase winding move 3 slots or 6 slots along the circumferential direction of the stator core correspondingly, which is not further described herein;

with reference to fig. 7A to 7D, in the third embodiment, the first conductor group 500 in the U-phase winding includes two first conductors and one second conductor, where the first conductor in the first conductor group 500 is located in the radial 54 th slot on the 2 nd layer and the 11 th slot on the 1 st layer of the stator core, the second first conductor in the first conductor group 500 is located in the radial 1 st slot on the 2 nd layer and the 12 th slot on the 1 st layer of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd slot on the 2 nd layer and the 10 th slot on the 1 st layer of the stator core, and the conductor structure forms of the remaining 15 conductor groups of the U-phase winding are the same as the structure form of the first conductor group 500, and detailed descriptions are not further given to the specific slot layers corresponding to the remaining 47 conductor groups of the U-phase winding, the V-phase winding, and the W-phase winding; that is, in the third embodiment, the conductor set 500 includes two first conductors and one second conductor; with reference to fig. 8A to 8D, in the fourth embodiment, a first conductor group 500 in the U-phase winding includes a first conductor and two second conductors, where the first conductor in the first conductor group 500 is located in the radial 2 nd layer 54 th slot and the 1 st layer 12 th slot of the stator core, the second first conductor in the first conductor group 500 is located in the radial 2 nd layer 1 st slot and the 1 st layer 10 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd layer 2 nd slot and the 1 st layer 11 th slot of the stator core, and the conductor structure forms of the remaining 15 conductor groups of the U-phase winding are the same as the structure form of the first conductor group 500, and further description is not given to the specific slot layers corresponding to the remaining 47 conductor groups of the U-phase winding, the V-phase winding, and the W-phase winding; that is, in the fourth embodiment, the conductor set 500 includes one first conductor and two second conductors; in the third and fourth embodiments, the first conductor group 500 of the U-phase winding is located in the 54 th slot, the 1 st slot, and the 2 nd slot of the 2 nd layer in the radial direction of the stator core, and the 10 th slot, the 11 th slot, and the 12 th slot of the 1 st layer; the second conductor group 500 in the U-phase winding is located in the 54 th slot, the 1 st slot, the 2 nd slot of the 4 th layer, and the 10 th slot, the 11 th slot, and the 12 th slot of the 3 rd layer in the radial direction of the stator core; the third conductor group 500 in the U-phase winding is located in the 54 th slot, the 1 st slot, the 2 nd slot of the 6 th layer and the 10 th slot, the 11 th slot and the 12 th slot of the 5 th layer in the radial direction of the stator core; a fourth conductor group 500 in the U-phase winding is positioned in the 9 th slot, the 10 th slot, the 11 th slot of the 2 nd layer and the 19 th slot, the 20 th slot and the 21 st slot of the 3 rd layer in the radial direction of the stator core; a fifth conductor group 500 in the U-phase winding is positioned in the 9 th slot, the 10 th slot, the 11 th slot of the 4 th layer and the 19 th slot, the 20 th slot and the 21 st slot of the 5 th layer in the radial direction of the stator core; the sixth conductor group 500 in the U-phase winding is positioned in the 18 th slot, the 19 th slot, the 20 th slot of the 2 nd layer and the 28 th slot, the 29 th slot and the 30 th slot of the 5 th layer in the radial direction of the stator core; the seventh conductor group 500 in the U-phase winding is located in the 18 th, 19 th, 20 th and 5 th slots of the 4 th, 29 th and 30 th layers in the radial direction of the stator core; the eighth conductor group 500 in the U-phase winding is positioned in the 27 th, 28 th and 29 th slots of the 2 nd layer and the 37 th, 38 th and 39 th slots of the 1 st layer in the radial direction of the stator core; a ninth conductor group 500 in the U-phase winding is positioned in the 27 th slot, the 28 th slot and the 29 th slot of the 4 th layer and the 37 th slot, the 38 th slot and the 39 th slot of the 3 rd layer in the radial direction of the stator core; a tenth conductor group 500 in the U-phase winding is positioned in the 27 th slot, the 28 th slot and the 29 th slot of the 6 th layer and the 37 th slot, the 38 th slot and the 39 th slot of the 5 th layer in the radial direction of the stator core; the eleventh conductor group 500 in the U-phase winding is located in the 36 th, 37 th and 38 th slots of the 2 nd layer and the 46 th, 47 th and 48 th slots of the 1 st layer in the radial direction of the stator core; a twelfth conductor group 500 in the U-phase winding is positioned in the stator core radial direction in the 36 th, 37 th and 38 th slots of the 4 th layer and the 46 th, 47 th and 48 th slots of the 3 rd layer; the thirteenth conductor group 500 in the U-phase winding is located in the 36 th, 37 th, 38 th and 46 th, 47 th and 48 th slots of the 6 th, 38 th and 5 th layers in the radial direction of the stator core; a fourteenth conductor group 500 in the U-phase winding is located in the 45 th, 46 th and 47 th slots of the 2 nd layer and the 1 st, 2 nd and 3 rd slots of the 1 st layer in the radial direction of the stator core; a fifteenth conductor group 500 in the U-phase winding is positioned in the 45 th slot, the 46 th slot, the 47 th slot of the 4 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 3 rd layer in the radial direction of the stator core; a sixteenth conductor group 500 in the U-phase winding is positioned in the 45 th slot, the 46 th slot and the 47 th slot of the 6 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 5 th layer in the radial direction of the stator core; namely, the U-phase winding includes: the 16 conductor groups 500 and the 16 conductor groups 500 are sequentially arranged along the circumferential direction of the stator core 10, and of course, the positions of the conductor groups 500 of the V-phase winding and the W-phase winding and the positions of the conductor groups 500 of the U-phase winding move 3 slots or 6 slots along the circumferential direction of the stator core correspondingly, which is not further described herein;

with reference to fig. 9A to 9D, in an embodiment fifth, a first conductor group 500 in the U-phase winding includes two first conductors and one second conductor, where the first conductor in the first conductor group 500 is located in the radial 2 nd layer of the 2 nd slot and the 1 st layer of the 11 th slot of the stator core, the second first conductor in the first conductor group 500 is located in the radial 2 nd layer of the 3 rd slot and the 1 st layer of the 12 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd layer of the 4 th slot and the 1 st layer of the 10 th slot of the stator core, and the conductor structure forms of the remaining 15 conductor groups of the U-phase winding are the same as the structure form of the first conductor group 500, and further description is not given to the specific slot layers corresponding to the remaining 47 conductor groups of the U-phase winding, the V-phase winding, and the W-phase winding; that is, in the fifth embodiment, the conductor set 500 includes two first conductors and one second conductor; in the sixth embodiment, a first conductor group 500 in the U-phase winding includes a first conductor and two second conductors, where the first conductor in the first conductor group 500 is located in the radial 2 nd layer 2 nd slot and the 1 st layer 12 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd layer 3 rd slot and the 1 st layer 10 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 nd layer 4 th slot and the 1 st layer 11 th slot of the stator core, the conductor structure forms of the remaining 15 conductor groups of the U-phase winding are the same as the structure form of the first conductor group 500, and further description is not given to the specific slot layers corresponding to the remaining 47 conductor groups of the U-phase winding, the V-phase winding, and the W-phase winding; that is, in the sixth embodiment, the conductor set 500 includes one first conductor and two second conductors; in the fifth and sixth embodiments, the first conductor group 500 of the U-phase winding is located in the 2 nd, 3 rd and 4 th slots of the 2 nd layer and the 10 th, 11 th and 12 th slots of the 1 st layer in the radial direction of the stator core; the second conductor group 500 in the U-phase winding is located in the 2 nd slot, the 3 rd slot, the 4 th slot of the 4 th layer and the 10 th slot, the 11 th slot and the 12 th slot of the 3 rd layer in the radial direction of the stator core; a third conductor group 500 in the U-phase winding is positioned in the 2 nd slot, the 3 rd slot, the 4 th slot of the 6 th layer and the 10 th slot, the 11 th slot and the 12 th slot of the 5 th layer in the radial direction of the stator core; a fourth conductor group 500 in the U-phase winding is positioned in the 11 th slot, the 12 th slot, the 13 th slot of the 2 nd layer and the 19 th slot, the 20 th slot and the 21 st slot of the 3 rd layer in the radial direction of the stator core; a fifth conductor group 500 in the U-phase winding is positioned in the 11 th, 12 th and 13 th slots of the 4 th layer and the 19 th, 20 th and 21 st slots of the 5 th layer in the radial direction of the stator core; the sixth conductor group 500 in the U-phase winding is positioned in the 20 th slot, the 21 st slot, the 22 nd slot of the 2 nd layer and the 28 th slot, the 29 th slot and the 30 th slot of the 5 th layer in the radial direction of the stator core; the seventh conductor group 500 in the U-phase winding is located in the 20 th, 21 st, 22 nd and 5 th slots of the 4 th, 29 th and 30 th layers in the radial direction of the stator core; the eighth conductor group 500 in the U-phase winding is positioned in the 29 th, 30 th and 31 th slots of the 2 nd layer and the 37 th, 38 th and 39 th slots of the 1 st layer in the radial direction of the stator core; the ninth conductor group 500 in the U-phase winding is located in the 29 th, 30 th, 31 th and 37 th, 38 th and 39 th slots of the 4 th, 31 th and 3 rd layers in the radial direction of the stator core; a tenth conductor group 500 in the U-phase winding is located in the 29 th, 30 th and 31 th slots of the 6 th layer and the 37 th, 38 th and 39 th slots of the 5 th layer in the radial direction of the stator core; the eleventh conductor group 500 in the U-phase winding is located in the 38 th, 39 th and 40 th slots of the 2 nd layer and the 46 th, 47 th and 48 th slots of the 1 st layer in the radial direction of the stator core; a twelfth conductor group 500 in the U-phase winding is positioned in the stator core radial direction in the 38 th, 39 th, 40 th slots of the 4 th layer and the 46 th, 47 th and 48 th slots of the 3 rd layer; the thirteenth conductor group 500 in the U-phase winding is located in the stator core radial 6 th, 39 th, 40 th and 5 th slots, 46 th, 47 th and 48 th slots; a fourteenth conductor group 500 in the U-phase winding is located in the 47 th, 48 th and 49 th slots of the 2 nd layer and the 1 st, 2 nd and 3 rd slots of the 1 st layer in the radial direction of the stator core; a fifteenth conductor group 500 in the U-phase winding is positioned in the 47 th slot, the 48 th slot, the 49 th slot of the 4 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 3 rd layer in the radial direction of the stator core; a sixteenth conductor group 500 in the U-phase winding is positioned in the 47 th slot, the 48 th slot, the 49 th slot of the 6 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 5 th layer in the radial direction of the stator core; namely, the U-phase winding includes: the 16 conductor groups 500 and the 16 conductor groups 500 are sequentially arranged along the circumferential direction of the stator core 10, and of course, the positions of the conductor groups 500 of the V-phase winding and the W-phase winding and the positions of the conductor groups 500 of the U-phase winding move 3 slots or 6 slots along the circumferential direction of the stator core correspondingly, which is not further described herein;

with reference to fig. 11A to 11D, in the eighth embodiment, the first conductor set 500 located at the 1 st layer and the 2 nd layer in the radial direction of the stator core in the U-phase winding includes two first conductors and one second conductor, wherein, the first conductor in the first conductor group 500 is located at the radial 2 nd layer 1 st slot and the 1 st layer 11 th slot of the stator core, the second first conductor in the first conductor group 500 is located at the radial 2 nd layer 2 nd slot and the 1 st layer 12 th slot of the stator core, the second conductor in the first conductor group 500 is located at the radial 2 nd layer 3 rd slot and the 1 st layer 10 th slot of the stator core, the structural style of the rest conductor groups 500 located at the radial 1 st layer and the 2 nd layer of the stator core and at the radial 5 th layer and the 6 th layer of the stator core is the same as the structural style of the first conductor group 500 located at the radial 1 st layer and the 2 nd layer of the stator core, further description of specific slot layers corresponding to the remaining 11 conductor groups in the U-phase winding is not provided herein; a first conductor group 500 located at the radial 3 rd layer and the 4 th layer of the stator core in the U-phase winding comprises two first conductors and one second conductor, wherein the first conductor in the first conductor group 500 is located at the radial 4 th layer 54 th slot and the radial 3 rd layer 11 th slot of the stator core, the second first conductor in the first conductor group 500 is located at the radial 4 th layer 1 st slot and the radial 3 rd layer 12 th slot of the stator core, the second conductor in the first conductor group 500 is located at the radial 2 nd layer 2 nd slot and the radial 1 st layer 10 th slot of the stator core, the structural forms of the rest conductor groups 500 located at the radial 3 rd layer and the radial 4 th layer of the stator core are the same as the structural forms of the first conductor group 500 located at the radial 3 rd layer and the radial 4 th layer of the stator core, and detailed description of the specific slot layers corresponding to the 3 conductor groups in the U-phase winding is not further described herein; that is, in the eighth embodiment, the conductor set 500 includes two first conductors and one second conductor; in the seventh embodiment, the first conductor set 500 in the U-phase winding, which is located at the 1 st and 2 nd radial layers of the stator core, includes a first conductor and two second conductors, wherein the first conductor in the first conductor group 500 is located in the radial 2 nd layer 1 st slot and 1 st layer 12 th slot of the stator core, the second first conductor in the first conductor group 500 is located in the radial 2 nd layer 2 nd slot and 1 st layer 10 th slot of the stator core, the second conductor in the first conductor group 500 is located in the radial 2 rd layer 3 rd slot and 1 st layer 11 th slot of the stator core, the structural form of the rest conductor groups 500 located in the radial 1 st layer and 2 nd layer of the stator core and in the radial 5 th layer and 6 th layer of the stator core is the same as the structural form of the first conductor group 500 located in the radial 1 st layer and 2 nd layer of the stator core, further description of specific slot layers corresponding to the remaining 11 conductor groups of the U-phase winding is not provided herein; a first conductor group 500 located at the radial 3 rd layer and the 4 th layer of the stator core in the U-phase winding comprises a first conductor and two second conductors, wherein the first conductor in the first conductor group 500 is located at the radial 4 th layer 54 th slot and the radial 3 rd layer 12 th slot of the stator core, the second first conductor in the first conductor group 500 is located at the radial 4 th layer 1 st slot and the radial 3 rd layer 10 th slot of the stator core, the second conductor in the first conductor group 500 is located at the radial 2 nd layer 2 nd slot and the radial 1 st layer 11 th slot of the stator core, the structural forms of the rest of conductor groups 500 located at the radial 3 rd layer and the radial 4 th layer of the stator core are the same as the structural forms of the first conductor group 500 located at the radial 3 rd layer and the radial 4 th layer of the stator core, and detailed description is not made for the concrete slot layers corresponding to the rest of 3 conductor groups of the U-phase winding; that is, in the seventh embodiment, the conductor set 500 includes one first conductor and two second conductors; in the eighth and seventh embodiments, the first conductor group 500 of the U-phase winding is located in the 1 st, 2 nd, and 3 rd slots of the 2 nd layer and the 10 th, 11 th, and 12 th slots of the 1 st layer in the radial direction of the stator core; the second conductor group 500 in the U-phase winding is located in the 54 th, 1 st, 2 nd and 3 rd slots of the 4 th layer in the radial direction of the stator core; the third conductor group 500 in the U-phase winding is located in the 54 th slot, the 1 st slot, the 2 nd slot of the 6 th layer and the 9 th slot, the 10 th slot and the 11 th slot of the 5 th layer in the radial direction of the stator core; a fourth conductor group 500 in the U-phase winding is positioned in a 10 th slot, a 11 th slot and a 12 th slot of a 2 nd layer and a 19 th slot, a 20 th slot and a 21 st slot of a 3 rd layer in the radial direction of the stator core; a fifth conductor group 500 in the U-phase winding is positioned in the 9 th slot, the 10 th slot, the 11 th slot of the 4 th layer and the 18 th slot, the 19 th slot and the 20 th slot of the 5 th layer in the radial direction of the stator core; the sixth conductor group 500 in the U-phase winding is positioned in the 19 th slot, the 20 th slot, the 21 st slot of the 2 nd layer and the 28 th slot, the 29 th slot and the 30 th slot of the 5 th layer in the radial direction of the stator core; the seventh conductor group 500 in the U-phase winding is positioned in the 18 th slot, the 19 th slot, the 20 th slot of the 4 th layer and the 27 th slot, the 28 th slot and the 29 th slot of the 5 th layer in the radial direction of the stator core; the eighth conductor group 500 in the U-phase winding is located in the 28 th, 29 th and 30 th slots of the 2 nd layer and the 37 th, 38 th and 39 th slots of the 1 st layer in the radial direction of the stator core; a ninth conductor group 500 in the U-phase winding is positioned in the 27 th slot, the 28 th slot and the 29 th slot of the 4 th layer and the 37 th slot, the 38 th slot and the 39 th slot of the 3 rd layer in the radial direction of the stator core; a tenth conductor group 500 in the U-phase winding is positioned in the 27 th slot, the 28 th slot, the 29 th slot of the 6 th layer and the 36 th slot, the 37 th slot and the 38 th slot of the 5 th layer in the radial direction of the stator core; the eleventh conductor group 500 in the U-phase winding is located in the 37 th, 38 th and 39 th slots of the 2 nd layer and the 46 th, 47 th and 48 th slots of the 1 st layer in the radial direction of the stator core; the twelfth conductor group 500 in the U-phase winding is located in the 36 th, 37 th, 38 th and 46 th, 47 th and 48 th slots of the 4 th, 38 th and 3 rd layers in the radial direction of the stator core; the thirteenth conductor group 500 in the U-phase winding is located in the 36 th, 37 th, 38 th slots of the 6 th layer and the 45 th, 46 th and 47 th slots of the 5 th layer in the radial direction of the stator core; the fourteenth conductor group 500 in the U-phase winding is located in the 46 th, 47 th, and 48 th slots of the 2 nd layer and the 1 st, 2 nd, and 3 rd slots of the 1 st layer in the radial direction of the stator core; a fifteenth conductor group 500 in the U-phase winding is positioned in the 46 th slot, the 47 th slot, the 48 th slot of the 4 th layer and the 1 st slot, the 2 nd slot and the 3 rd slot of the 3 rd layer in the radial direction of the stator core; a sixteenth conductor group 500 in the U-phase winding is positioned in the 45 th slot, the 46 th slot, the 47 th slot of the 6 th layer and the 54 th slot, the 1 st slot and the 2 nd slot of the 5 th layer in the radial direction of the stator core; namely, the U-phase winding includes: the 16 conductor groups 500 and the 16 conductor groups 500 are sequentially arranged along the circumferential direction of the stator core 10, and of course, the positions of the conductor groups 500 of the V-phase winding and the W-phase winding and the positions of the conductor groups 500 of the U-phase winding move 3 slots or 6 slots along the circumferential direction of the stator core correspondingly, which is not further described herein;

illustratively, as shown in fig. 3 and 4, in an embodiment, each conductor of the conductor set 500 includes: for insertion into two slot interiors 301 of two radially adjacent layers of different slots of the stator core, each conductor of the conductor set 500 further comprises: two weld ends 303 located at stator core axial out-of-slot ends 25 and respectively connecting two in-slot portions 301, each conductor of conductor set 500 further comprises: one plug terminal 302 located at the other end 26 of the stator core outside the axial slot and connected with the two slot interiors 301; as shown in fig. 5A to 11D, the phase winding further includes: and the outgoing line is positioned on the radial outermost layer of the stator core and/or positioned on the radial innermost layer of the stator core and is positioned at the non-welding end of the stator winding.

With reference to fig. 5A through 11D, in an embodiment, each phase winding further includes: the outgoing lines, that is, the lead end U1 of the first branch winding, the lead end U2 of the first branch winding, the lead end U3 of the second branch winding, the lead end U4 of the second branch winding, the lead end U5 of the third branch winding, and the lead end U6 of the third branch winding are all located at a non-welding end of the stator winding (that is, located at one axial end 26 of the stator core), in this embodiment, all of the outgoing lines are located at a radially innermost layer (a radially first layer of the stator core), and may of course be located at a radially outermost layer (a radially sixth layer of the stator core), and of course, in the case that each phase winding of the stator winding is formed by connecting 6 branch windings in parallel, the lead ends U1, U3, and U5 may be located at the radially first layer of the stator core, and the lead end U2U 4U 6 may be located at the radially sixth layer of the stator core;

illustratively, as shown in fig. 5A to 5D, when the pitch between the inside of two slots of the first conductor of the conductor set 500 of the phase winding is a long pitch and the pitch between the inside of two slots of the second conductor of the conductor set 500 of the phase winding is a short pitch, the pitch between the connecting weld terminals located at the axially outer slot end 25 of the stator core is a full pitch.

With reference to fig. 5A to 5D, specifically, in the first embodiment, the two inside slots of the first conductor of the first conductor set 500 of the U-phase winding are located in the 2 nd layer 1 st slot and the 1 st layer 11 th slot of the stator core respectively, i.e., the pitch between the two inside slots of the first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two inside slots of the second first conductor of the first conductor set 500 of the U-phase winding are located in the 2 nd layer 2 nd slot and the 1 st layer 12 th slot of the stator core respectively, i.e., the pitch between the two inside slots of the second first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two inside slots of the second conductor of the first conductor set 500 of the U-phase winding are located in the 2 nd layer 3 rd slot and the 1 st layer 10 th slot of the stator core respectively, the two inside slots of the second conductor of the first conductor set 500 of the U-phase winding is a short pitch (in the first embodiment, the short pitch is 7); the two inside slots of the first conductor of the second conductor set 500 of the U-phase winding are located in the 4 th and 11 th slots of the stator core, respectively, i.e., the pitch between the two inside slots of the first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two inside slots of the second first conductor of the second conductor set 500 of the U-phase winding are located in the 4 th and 12 th slots of the stator core, respectively, i.e., the pitch between the two inside slots of the second first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two inside slots of the second conductor set 500 of the U-phase winding are located in the 4 th and 10 th slots of the stator core, respectively, the pitch between the two inside slots of the second conductor set 500 of the U-phase winding is a short pitch (in the first embodiment, the short pitch is 7); the two slot interiors of the first conductor of the third conductor set 500 of the U-phase winding are respectively located in the 1 st slot on the 6 th layer and the 11 th slot on the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two slot interiors of the second first conductor of the third conductor set 500 of the U-phase winding are respectively located in the 2 nd slot on the 6 th layer and the 12 th slot on the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the second first conductor is a long pitch (in the first embodiment, the long pitch is 10), the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding are respectively located in the 3 rd slot on the 6 th layer and the 10 th slot on the 5 th layer of the stator core, the pitch between the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding is a short pitch (in the first embodiment, the short pitch is 7); the pitch between two welding ends which are positioned at one end 25 outside the axial slot of the stator core and connected in the U-phase winding is a whole pitch; that is, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core is a whole pitch (in the first embodiment, the whole pitch is 9), the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 11 nd slot in the radial direction of the stator core is a whole pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 3 rd slot in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 4 th slot in the radial direction of the stator core are a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 11 th slot of the stator core is a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 12 th slot of the stator core is a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 10 th slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 2 nd slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 11 th slot of the stator core are a whole pitch, in the first embodiment, the pitch between two welding ends connected to one end of the phase winding located outside the axial slot of the stator core is a full pitch, and further details are not described herein, with reference to fig. 5A to 5D.

For example, as shown in fig. 6A to 6D, in the second embodiment, when the pitch between the two slot interiors of one first conductor of the conductor set 500 of the phase winding is a long pitch and the pitch between the two slot interiors of two second conductors of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected at one end outside the axial slot of the stator core is a full pitch.

With reference to fig. 6A to 6D, specifically, in the second embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot on the 2 nd layer and the 12 th slot on the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the second embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot on the 2 nd layer and the 10 th slot on the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a short pitch (in the second embodiment, the short pitch is 8), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 3 rd slot on the 2 nd layer and the 11 th slot on the 1 st layer of the stator core, the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the second embodiment, the short pitch is 8); the two slot interiors of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 1 st slot on the 4 th layer and the 12 th slot on the 3 rd layer of the stator core, i.e., the pitch between the two slot interiors of the first conductor is long pitch (in the second embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 2 nd slot on the 4 th layer and the 10 th slot on the 3 rd layer of the stator core, i.e., the pitch between the two slot interiors of the first second conductor is short pitch (in the second embodiment, the short pitch is 8), the two slot interiors of the second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 3 rd slot on the 4 th layer and the 11 th slot on the 3 rd layer of the stator core, the pitch between the two slot interiors of the second conductor set 500 of the U-phase winding is short pitch (in the second embodiment, the short pitch is 8); the two slot interiors of the first conductor of the third conductor set 500 of the U-phase winding are located in the 1 st slot on the 6 th layer and the 12 th slot on the 5 th layer of the stator core, respectively, i.e., the pitch between the two slot interiors of the first conductor is long pitch (in the second embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the third conductor set 500 of the U-phase winding are located in the 2 nd slot on the 6 th layer and the 10 th slot on the 5 th layer of the stator core, respectively, the pitch between the two slot interiors of the first second conductor is short pitch (in the second embodiment, the short pitch is 8), the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding are located in the 3 rd slot on the 6 th layer and the 11 th slot on the 5 th layer of the stator core, respectively, the pitch between the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding is short pitch (in the second embodiment, the short pitch is 8); the pitch between two welding ends which are positioned at one end 25 outside the axial slot of the stator core and connected in the U-phase winding is a whole pitch; that is, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core is a whole pitch (in the second embodiment, the whole pitch is 9), the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 11 nd slot in the radial direction of the stator core is a whole pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 3 rd slot in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 4 th slot in the radial direction of the stator core are a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 3 rd layer and the 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 4 th layer and the 11 th slot of the stator core is a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 3 rd layer and the 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 4 th layer and the 12 th slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 5 th layer and the 1 st slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 6 th layer and the 10 th slot of the stator core are a whole pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 5 th layer and the 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 6 th layer and the 11 th slot of the stator core and the whole pitch is a whole pitch, in a second embodiment, the pitch between two welding ends connected to one end of the phase winding located outside the axial slot of the stator core is a full pitch, which is not further described herein, with reference to fig. 6A to 6D.

For example, as shown in fig. 7A to 7D, in the third embodiment, when the pitch between the two slot interiors of the two first conductors of the conductor set 500 of the phase winding is a long pitch and the pitch between the two slot interiors of the one second conductor of the conductor set 500 of the phase winding is a short pitch, the pitch between the two welding terminals connected to the one end 25 of the stator core located axially outside the slot is a short pitch.

With reference to fig. 7A to 7D, specifically, in the third embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 54 th slot of the stator core layer 2 and the 11 th slot of the layer 1, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot of the stator core layer 2 and the 12 th slot of the layer 1, that is, the pitch between the two slot interiors of the second first conductor is a long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the stator core layer 2 and the 10 th slot of the layer 1, the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the third embodiment, the short pitch is 8); the two slot interiors of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 54 th slot on the 4 th layer and the 11 th slot on the 3 rd layer of the stator core (in the third embodiment, the long pitch is 11), i.e., the pitch between the two slot interiors of the first conductor of the second conductor set 500 of the U-phase winding is long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second conductor set 500 of the U-phase winding are respectively located in the 1 st slot on the 4 th layer and the 12 rd slot on the 3 rd layer of the stator core, i.e., the pitch between the two slot interiors of the second first conductor is long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second conductor set 500 of the U-phase winding are respectively located in the 2 nd slot on the 4 th layer and the 10 th layer of the stator core, the pitch between the two slot interiors of the second conductor set 500 of the U-phase winding is short pitch (in the third embodiment, the short pitch is 8); the two slot interiors of the first conductor of the third conductor set 500 of the U-phase winding are respectively located in the 54 th slot at the 6 th layer and the 11 th slot at the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the first conductor is a long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second first conductor of the third conductor set 500 of the U-phase winding are respectively located in the 1 st slot at the 6 th layer and the 12 th slot at the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the second first conductor is a long pitch (in the third embodiment, the long pitch is 11), the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding are respectively located in the 2 nd slot at the 6 th layer and the 10 th slot at the 5 th layer of the stator core, the pitch between the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding is a short pitch (in the third embodiment, the short pitch is 8); the pitch between two welding ends which are positioned at one end 25 outside the axial slot of the stator core and connected in the U-phase winding is a short pitch; that is, the pitch between the welding ends corresponding to the inside of the slots of the conductor located at the 1 st radial layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located at the 2 nd radial layer of the stator core is a short pitch (in the third embodiment, the short pitch is 8), the pitch between the welding ends corresponding to the inside of the slots of the conductor located at the 1 st radial layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located at the 10 nd radial layer of the stator core is a short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor located at the 1 st radial layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located at the 11 nd radial layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located at the 3 rd radial layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located at the 4 th radial layer of the stator core and the 9 th radial layer of the stator core is a short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 3 rd layer and the 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 4 th layer and the 10 th slot of the stator core is short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 3 rd layer and the 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 4 th layer and the 11 th slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 5 th layer and the 1 st slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 6 th layer and the 9 th slot of the stator core are short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor of the radial 5 th layer and the 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor of the radial 6 th layer and the 10 th slot of the stator core and the short pitch is short pitch, in a third embodiment, the pitch between two welding ends connected to one end of the phase winding located outside the axial slot of the stator core is a short pitch, which is not further described herein, with reference to fig. 5A to 5D.

For example, as shown in fig. 8A to 8D, in the fourth embodiment, when the pitch between the inside of two slots of one first conductor of the conductor set of the phase winding is a long pitch and the pitch between the inside of two slots of two second conductors of the conductor set of the phase winding is a full pitch, the pitch between two welding terminals connected at one end of the stator core axially outside the slots is a short pitch.

With reference to fig. 8A to 8D, specifically, in the fourth embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 54 th slot of the stator core layer 2 and the 12 th slot of the layer 1, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the fourth embodiment, the long pitch is 12), the two slot interiors of the first second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot of the stator core layer 2 and the 10 th slot of the layer 1, that is, the pitch between the two slot interiors of the first conductor is a full pitch (in the fourth embodiment, the full pitch is 9), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the stator core layer 2 and the 11 th slot of the layer 1, the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a full pitch (in the fourth embodiment, the overall pitch is 9); the two slot interiors of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 54 th slot and the 12 rd slot on the 4 th layer of the stator core and the 12 th slot on the 3 rd layer of the stator core, i.e., the pitch between the two slot interiors of the first conductor is a long pitch (in the fourth embodiment, the long pitch is 12), the two slot interiors of the first second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 1 st slot and the 10 th slot on the 4 th layer of the stator core, i.e., the pitch between the two slot interiors of the first second conductor is a full pitch (in the fourth embodiment, the full pitch is 9), the two slot interiors of the second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 2 nd slot and the 11 th slot on the 4 rd layer of the stator core, the pitch between the two slot interiors of the second conductor set 500 of the U-phase winding is a full pitch (in the fourth embodiment, the overall pitch is 9); the two slot interiors of the first conductor of the third conductor set 500 of the U-phase winding are respectively located in the 54 th slot at the 6 th layer and the 12 th slot at the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the first conductor is a long pitch (in the fourth embodiment, the long pitch is 12), the two slot interiors of the first second conductor of the third conductor set 500 of the U-phase winding are respectively located in the 1 st slot at the 6 th layer and the 10 th slot at the 5 th layer of the stator core, i.e., the pitch between the two slot interiors of the first second conductor is a full pitch (in the fourth embodiment, the full pitch is 9), the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding are respectively located in the 2 nd slot at the 6 th layer and the 11 th slot at the 5 th layer of the stator core, the pitch between the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding is a full pitch (in the fourth embodiment, the overall pitch is 9); the pitch between two welding ends which are positioned at one end 25 outside the axial slot of the stator core and connected in the U-phase winding is a short pitch; that is, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st radial slot of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 2 nd radial slot of the stator core is a short pitch (in the fourth embodiment, the short pitch is 8), the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st radial slot of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 10 nd radial slot of the stator core is a short pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st radial slot of the stator core and the 11 nd radial slot of the stator core is a short pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 3 rd radial slot of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 4 th radial slot of the stator core is a short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 10 th slot of the stator core is short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 11 th slot of the stator core is short pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 1 st slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 10 th slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 2 th slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 10 th slot of the stator core are short pitch, in a fourth embodiment, the pitch between two welding ends connected to one end of the phase winding outside the axial slot of the stator core is a short pitch, and further details are not described herein, with reference to fig. 5A to 5D.

For example, as shown in fig. 9A to 9D, in the fifth embodiment, when the pitch between the inside of the two slots of the two first conductors of the conductor set of the phase winding is a full pitch and the pitch between the inside of the two slots of the one second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected at the axially outer ends of the slots of the stator core is a long pitch.

With reference to fig. 9A to 9D, specifically, in the fifth embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the 2 nd layer of the stator core and the 11 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 3 rd slot of the 2 nd layer of the stator core and the 12 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 4 th slot of the 2 nd layer of the stator core and the 10 th slot of the 1 st layer of the stator core, the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the fifth embodiment, the short pitch is 6); the two slots of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 4 th layer, the 2 nd slot and the 3 rd layer, the 11 th slot of the stator core, that is, the pitch between the two slot interiors of the first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second first conductor of the second conductor group 500 of the U-phase winding are respectively located in the 4 rd layer 3 rd slot and the 3 rd layer 12 th slot of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second conductor group 500 of the U-phase winding are respectively located in the 4 th slot and the 10 th slot of the 4 rd layer of the stator core, and the pitch between the two slot interiors of the second conductor group 500 of the U-phase winding is a short pitch (in the fifth embodiment, the short pitch is 6); the two slots of the first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the 6 th layer and the 11 th slot of the 5 th layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 6 rd layer, the 3 rd slot and the 5 th layer, the 12 th slot of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a full pitch (in the fifth embodiment, the full pitch is 9), the two slot interiors of the second conductor of the third conductor group 500 of the U-phase winding are respectively located in the 6 th-layer 4 th slot and the 5 th-layer 10 th slot of the stator core, and the pitch between the two slot interiors of the second conductor of the third conductor group 500 of the U-phase winding is a short pitch (in the fifth embodiment, the short pitch is 6); the pitch between two welding ends which are positioned outside the axial slot 25 of the stator core and connected in the U-phase winding is a long pitch; that is, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 11 nd slot in the radial direction of the stator core is a long pitch (in the fifth embodiment, the long pitch is 10), the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 12 nd slot in the radial direction of the stator core is a long pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located at the 13 rd slot in the radial direction of the 2 nd slot in the radial direction of the stator core is a long pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located at the 1 st slot in the radial direction of the 1 st slot and the welding ends corresponding to the inside of the slot of the conductor located at the 4 th slot in the radial direction of the stator core is a long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 12 th slot of the stator core is long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 13 th slot of the stator core is long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 1 st slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 12 th slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 2 th slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 12 th slot of the stator core are long pitch, in the fifth embodiment, the pitch between two welding ends connected to one end of the phase winding located outside the axial slot of the stator core is a long pitch, and further details are not described herein, with reference to fig. 9A to 9D.

Illustratively, in the sixth embodiment, when the pitch between the two slot interiors of one first conductor of the conductor group of the phase winding is a long pitch and the pitch between the two slot interiors of two second conductors of the conductor group of the phase winding is a short pitch, the pitch between the two weld terminals connected at the axially outer end of the slot of the stator core is a long pitch.

Specifically, in the sixth embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the 2 nd layer and the 12 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the sixth embodiment, the long pitch is 10), the two slot interiors of the first second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 3 rd slot of the 2 nd layer and the 10 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first second conductor is a short pitch (in the sixth embodiment, the short pitch is 7), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 4 th slot of the 2 nd layer and the 11 th slot of the 1 st layer of the stator core, the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the sixth embodiment, the short pitch is 7); the two slot interiors of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 4 nd layer 2 nd slot and the 3 rd layer 12 th slot of the stator core, i.e., the pitch between the two slot interiors of the first conductor is long pitch (in the sixth embodiment, the long pitch is 10), the two slot interiors of the first second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 4 th layer 3 rd slot and the 3 rd layer 10 th slot of the stator core, i.e., the pitch between the two slot interiors of the first second conductor is short pitch (in the sixth embodiment, the short pitch is 7), the two slot interiors of the second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 4 th layer 4 th slot and the 3 rd layer 11 th slot of the stator core, the pitch between the two slot interiors of the second conductor set 500 of the U-phase winding is short pitch (in the sixth embodiment, the short pitch is 7); the two inside slots of the first conductor of the third conductor set 500 of the U-phase winding are located in the 6 nd and 5 th slots of the stator core, respectively, i.e., the pitch between the two inside slots of the first conductor is a long pitch (in the sixth embodiment, the long pitch is 10), the two inside slots of the first second conductor of the third conductor set 500 of the U-phase winding are located in the 6 rd and 5 th slots of the stator core, respectively, the 3 rd and 5 th slots 10, i.e., the pitch between the two inside slots of the first second conductor is a short pitch (in the sixth embodiment, the short pitch is 7), the two inside slots of the second conductor of the third conductor set 500 of the U-phase winding are located in the 6 th and 5 th slots 4 th slots, respectively, the 11 th slots of the stator core, respectively, the pitch between the two inside slots of the second conductor of the third conductor set 500 of the U-phase winding is a short pitch (in the sixth embodiment, the short pitch is 7); the pitch between two welding ends which are positioned at one end 25 outside the axial slot of the stator core and connected in the U-phase winding is a long pitch; that is, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 11 nd slot in the 2 nd slot in the radial direction of the stator core is long pitch (in the sixth embodiment, the long pitch is 10), the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 2 nd slot in the radial direction of the stator core is long pitch, the pitch between the welding ends corresponding to the inside of the slot of the conductor located in the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 3 rd slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slot of the conductor located in the 4 th slot in the radial direction of the stator core are long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 12 th slot of the stator core is long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 3 rd layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 4 th layer and 13 th slot of the stator core is long pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 1 st slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 12 th slot of the stator core and the pitch between the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 5 th layer and 2 th slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor positioned in the radial 6 th layer and 12 th slot of the stator core are long pitch, in a sixth embodiment, the pitch between two welding ends connected to one end of the phase winding located outside the axial slot of the stator core is a long pitch, and details are not further described herein.

Illustratively, as shown in fig. 11A to 11D, in the eighth embodiment, when the pitch between the inside of two slots of two first conductors of the conductor set 500 located at the 3 rd and 4 th layers in the radial direction of the stator core in the phase winding is 11, the pitch between the inside of two slots of one second conductor of the conductor set located at the 3 rd and 4 th layers in the radial direction of the stator core in the phase winding is 8, the pitch between the inside of two slots of two first conductors of the conductor set located at the remaining layers in the radial direction of the stator core in the phase winding is 10, the pitch between the inside of two slots of one second conductor of the conductor set located at the remaining layers in the radial direction of the stator core in the phase winding is 7, the pitch between the connecting weld terminals located at the 3 rd and 4 th layers in the radial direction of the stator core is a short pitch, the pitch between the connecting weld terminals located at the remaining layers in the radial direction of the stator core is a full pitch, where M is 4Y +2, y is an integer of 1 or more, M is 6 in this embodiment, and Y is 1.

With reference to fig. 11A to 11D, specifically, in the eighth embodiment, two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd layer 1 st slot and the 1 st layer 11 th slot of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the eighth embodiment, the long pitch is 10), two slot interiors of the second first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd layer 2 nd slot and the 1 st layer 12 th slot of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a long pitch (in the eighth embodiment, the long pitch is 10), two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 3 rd slot and the 1 st layer 10 th slot of the stator core, and the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the eighth embodiment, the short pitch is 7); the two slots of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 54 th slot of the 4 th layer and the 11 th slot of the 3 rd layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the eighth embodiment, the long pitch is 11), the two slot interiors of the second first conductor of the second conductor group 500 of the U-phase winding are respectively located in the 1 st slot on the 4 th layer and the 12 th slot on the 3 rd layer of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a long pitch (in the eighth embodiment, the long pitch is 11), the two slot interiors of the second conductor group 500 of the U-phase winding are respectively located in the 2 nd slot on the 4 th layer and the 10 th slot on the 3 rd layer of the stator core, and the pitch between the two slot interiors of the second conductor of the third conductor group 500 of the U-phase winding is a short pitch (in the eighth embodiment, the short pitch is 8); the two slots of the first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 54 th slot of the 6 th layer and the 10 th slot of the 5 th layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the eighth embodiment, the long pitch is 10), the two slot interiors of the second first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 1 st slot on the 6 th layer and the 11 th slot on the 5 th layer of the stator core, that is, the pitch between the two inside slots of the second first conductor is a long pitch (in the eighth embodiment, the long pitch is 10), the two inside slots of the second conductor of the third conductor set 500 of the U-phase winding are located in the 2 nd slot of the 6 th layer and the 9 th slot of the 5 th layer of the stator core, respectively, and the pitch between the two inside slots of the second conductor of the third conductor set 500 of the U-phase winding is a short pitch (in the eighth embodiment, the short pitch is 7); the pitch between the welding ends connected in the radial 3 rd and 4 th layers of the stator core at one end 25 outside the axial slot of the stator core in the U-phase winding is a short pitch, the pitch between the two welding ends connected in the radial 1 st and 2 nd layers and the 5 th and 6 th layers of the stator core is a whole pitch, that is, the pitch between the welding ends connected in the slot of the conductor located in the radial 2 nd layer 10 th slot of the stator core at the corresponding welding end in the slot of the conductor located in the radial 1 st layer 1 st slot of the stator core is a whole pitch (in this embodiment, the whole pitch is 9), the pitch between the welding ends connected in the slot of the conductor located in the radial 2 nd layer 2 nd slot of the stator core at the corresponding welding end connected in the slot of the conductor located in the radial 2 nd layer 11 th slot of the stator core is a whole pitch, the welding ends connected in the slot of the conductor located in the radial 1 st layer 3 rd slot of the stator core at the corresponding in the slot of the radial 2 nd layer 12 nd slot of the stator core at the corresponding to the short pitch The pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 1 st slot of the stator core is a full pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 9 th slot of the stator core is a short pitch (here, the short pitch is 8), the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 2 nd slot of the stator core is a short pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 10 th slot of the stator core is a short pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 3 rd slot of the stator core is a short pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 11 th slot of the stator core is a full pitch (in this embodiment, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 5 th layer 54 th slot of the stator core is a full pitch) and the corresponding to the inside of the slot of the conductor located in the radial 6 th layer 9 th slot of the stator core is a full pitch (this embodiment) In the embodiment eight, the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the 5 th layer and the 1 st slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the 6 th layer and the 10 th slot in the radial direction of the stator core is the whole pitch, and the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the 5 th layer and the 2 nd slot in the radial direction of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the 6 th layer and the 11 th slot in the radial direction of the stator core is the whole pitch, with reference to fig. 11A to 11D, the pitch between the connecting welding ends in the radial 3 rd and 4 th layers of the stator core at one end 25 outside the axial slot of the stator core in the phase winding is a short pitch, and the pitch between the connecting welding ends in the radial 1 st and 2 nd, 5 th and 6 th layers of the stator core is a whole pitch, which is not further described herein.

Exemplarily, in the seventh embodiment, when the pitch between the two inside slots of one first conductor of the conductor set 500 located at the radial 3 rd and 4 th layers of the stator core in the phase winding is 12, the pitch between the two inside slots of two second conductors of the conductor set 500 located at the radial 3 rd and 4 th layers of the stator core in the phase winding is 9, the pitch between the two inside slots of one first conductor of the conductor set 500 located at the radial remaining layers of the stator core in the phase winding is 11, and the pitch between the two inside slots of two second conductors of the conductor set located at the radial remaining layers of the stator core in the phase winding 500 is 8, the pitch between the connecting welding terminals located at the radial 3 rd and 4 th layers of the stator core is a short pitch, the pitch between the connecting welding terminals located at the radial remaining layers of the stator core is a whole pitch, where M is 4Y +2, Y is an integer greater than or equal to 1, m is 6 in this example and Y is 1.

Specifically, in the seventh embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot on the 2 nd layer and the 12 th slot on the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the seventh embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot on the 2 nd layer and the 10 th slot on the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first second conductor is a long pitch (in the seventh embodiment, the short pitch is 8), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 3 rd slot on the 2 nd layer and the 11 th slot on the 1 st layer of the stator core, the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the seventh embodiment, the short pitch is 8); the two inside slots of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 54 th slot of the 4 th layer and the 12 th slot of the 3 rd layer of the stator core (in the seventh embodiment, the long pitch is 12), the two inside slots of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 1 st slot of the 4 th layer and the 10 th slot of the 3 rd layer of the stator core (in the seventh embodiment, the long pitch is 12), the pitch between the two inside slots of the first conductor is the full pitch (in the seventh embodiment, the full pitch is 9), the two inside slots of the second conductor of the second conductor set 500 of the U-phase winding are respectively located in the 2 nd slot of the 4 th layer and the 11 th slot of the 3 rd layer of the stator core, the pitch between the two inside slots of the second conductor of the first conductor set 500 of the U-phase winding is the short pitch (in the seventh embodiment, the whole pitch is 9); the two slot interiors of the first conductor of the third conductor set 500 of the U-phase winding are located in the 54 th slot at the 6 th layer and the 11 th slot at the 5 th layer of the stator core, respectively, i.e., the pitch between the two slot interiors of the first conductor is a long pitch (in the seventh embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the third conductor set 500 of the U-phase winding are located in the 1 st slot at the 6 th layer and the 9 th slot at the 5 th layer of the stator core, respectively, the pitch between the two slot interiors of the first second conductor is a long pitch (in the seventh embodiment, the short pitch is 8), the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding are located in the 2 nd slot at the 6 th layer and the 10 th slot at the 5 th layer of the stator core, respectively, the pitch between the two slot interiors of the second conductor of the third conductor set 500 of the U-phase winding is a short pitch (in the seventh embodiment, the short pitch is 8); the pitch between the welding ends connected in the radial 3 rd and 4 th layers of the stator core at one end 25 outside the axial slot of the stator core in the U-phase winding is a short pitch, the pitch between two welding ends connected in the radial 1 st and 2 nd layers and the 5 th and 6 th layers of the stator core is a whole pitch, that is, the pitch between the welding ends connected in the slot of the conductor located in the radial 9 th layer of the stator core and corresponding to the welding end connected in the slot of the conductor located in the radial 2 nd layer of the stator core in the radial 1 st layer of the 54 th slot of the stator core is a whole pitch (in the seventh embodiment, the whole pitch is 9), the pitch between the welding ends connected in the slot of the conductor located in the radial 1 st layer of the stator core and corresponding to the welding end connected in the slot of the conductor located in the radial 2 nd layer of the stator core is a whole pitch, and the welding ends connected in the slot of the conductor located in the radial 1 st layer of the stator core and corresponding to the slot connected in the slot of the slot located in the radial 2 nd layer of the stator core in the radial 11 nd layer of the stator core The pitch between the welding terminals of (1) the stator core radial direction layer 1 slot conductor is a regular pitch, the pitch between the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 4 slot 9 of the stator core radial direction layer is a long pitch (here, a short pitch 8), the pitch between the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 3 slot 2 of the stator core radial direction layer 3 and the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 4 slot 10 of the stator core radial direction layer is a short pitch 8, the pitch between the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 3 slot 3 of the stator core radial direction layer 11 of the stator core radial direction layer 4 slot conductor is a short pitch 8, the pitch between the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 5 slot 54 of the stator core radial direction layer is a whole pitch (in this embodiment, the welding terminals corresponding to the inside of the slot connecting the conductor of the radial layer 6 slot 9 of the stator core radial direction layer is a whole pitch (in this embodiment) In the seventh embodiment, the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer of the stator core and the conductor located in the radial 6 th layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer of the stator core and the conductor located in the radial 10 th layer of the stator core is a full pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 6 th layer of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 11 th layer of the stator core is a full pitch, in the phase winding, the pitch between the welding ends located in the radial 3 rd layer and the radial 4 th layer of the stator core is a short pitch, and the pitch between the two welding ends located in the radial 1 st layer and the radial 2 nd layer of the stator core and the radial 5 th layer and the radial 6 th layer is a full pitch, which will not be further described herein.

In the ninth embodiment, for example, when the pitch between the two inside slots of the two first conductors of the conductor set 500 located at the 3 rd and 4 th radial layers of the stator core in the phase winding is 9, the pitch between the inside of two slots of one second conductor of the conductor set 500 located at the radial 3 rd and 4 th layers of the stator core in the phase winding is 6, the pitch between the inside of the two slots of the two first conductors of the conductor set 500 located at the radially remaining layer of the stator core in this phase winding is 10, when the pitch between the inside of two slots of one second conductor of the conductor set 500 located at the radially remaining layer of the stator core in the phase winding is 7, the pitch between the welding ends connected in the radial 3 rd layer and the radial 4 th layer of the stator core is a long pitch, the pitch between the two welding ends connected in the radial other layers of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer larger than or equal to 1.

Specifically, in the ninth embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 54 th slot of the 2 nd layer and the 10 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the ninth embodiment, the long pitch is 10), the two slot interiors of the second first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot of the 2 nd layer and the 11 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a long pitch (in the ninth embodiment, the long pitch is 10), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the 2 nd layer and the 9 th slot of the 1 st layer of the stator core, the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the ninth embodiment, the short pitch is 7); the two slots of the first conductor of the second conductor set 500 of the U-phase winding are respectively located in the 1 st slot on the 4 th layer and the 10 th slot on the 3 rd layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a full pitch (in the ninth embodiment, the full pitch is 9), the two slot interiors of the second first conductor of the second conductor group 500 of the U-phase winding are respectively located in the 4 th layer, the 2 nd slot and the 3 rd layer, the 11 th slot of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a full pitch (in the ninth embodiment, the full pitch is 9), the two slot interiors of the second conductor group 500 of the U-phase winding are respectively located in the 4 rd layer 3 rd slot and the 3 rd layer 9 th slot of the stator core, and the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the ninth embodiment, the short pitch is 6); the two slots of the first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 1 st slot of the 6 th layer and the 11 th slot of the 5 th layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the ninth embodiment, the long pitch is 10), the two slot interiors of the second first conductor of the third conductor group 500 of the U-phase winding are respectively located in the 2 nd slot at the 6 th layer and the 12 th slot at the 5 th layer of the stator core, that is, the pitch between the two slot interiors of the second first conductor is a long pitch (in the ninth embodiment, the long pitch is 10), the two slot interiors of the second conductor of the third conductor group 500 of the U-phase winding are respectively located in the 3 rd slot at the 6 th layer and the 10 th slot at the 5 th layer of the stator core, and the pitch between the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the ninth embodiment, the short pitch is 7); the pitch between the welding ends connected in the radial 3 rd and 4 th layers of the stator core at one end 25 outside the axial slot of the stator core in the U-phase winding is long pitch, the pitch between the two welding ends connected in the radial 1 st and 2 nd layers and the 5 th and 6 th layers of the stator core is whole pitch, that is, the pitch between the welding ends connected in the slot of the conductor located in the radial 9 th layer of the stator core at the corresponding welding end in the slot of the conductor located in the radial 1 st layer 54 th slot of the stator core is whole pitch (in this embodiment, the whole pitch is 9), the pitch between the welding ends connected in the slot of the conductor located in the radial 1 st layer 1 st slot of the stator core and the welding ends connected in the slot of the conductor located in the radial 2 nd layer 10 th slot of the stator core is whole pitch, the welding ends connected in the slot of the conductor located in the radial 1 st layer 2 nd slot of the stator core and the slot of the conductor located in the radial 2 nd layer 11 th slot of the stator core correspond to each other welding ends connected in the slot The pitch between the welding terminals of (1) the conductor located at the radial 5 th layer of the stator core is the whole pitch (in the stator core radial direction, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located at the radial 3 rd layer 54 th slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located at the radial 4 th layer 10 th slot of the stator core is the long pitch (in the ninth embodiment, the long pitch is 10), the pitch between the welding terminals corresponding to the inside of the slot of the conductor located at the radial 3 rd layer 1 st slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located at the radial 4 th layer 11 th slot of the stator core is the long pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located at the radial 3 rd layer 2 nd slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located at the radial 4 th layer 12 th slot of the stator core is the long pitch, and the pitch between the welding terminals corresponding to the inside of the slot of the conductor located at the radial 5 th layer 1 st slot of the stator core and the welding terminals corresponding to the slot of the radial layer 10 th slot of the stator core is the whole pitch (in the stator core radial direction) In this ninth embodiment, the full pitch is 9), the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 6 th layer and 11 th slot of the stator core is the full pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 6 th layer and 12 th slot of the stator core is the full pitch, in the ninth embodiment, the pitch between the connecting welding ends located in the radial 3 rd layer and 4 th layer of the stator core and the pitch between the two connecting welding ends located in the radial 1 st layer and 2 nd layer, and 5 th layer and 6 th layer of the stator core in the phase winding are the full pitch, which will not be further described herein.

Illustratively, in the tenth embodiment, when the pitch between the two slot interiors of one first conductor of the conductor sets located at the 3 rd and 4 th layers in the radial direction of the stator core in the phase winding is 10, the pitch between the two slot interiors of two second conductors of the conductor sets located at the 3 rd and 4 th layers in the radial direction of the stator core in the phase winding is 7, the pitch between the two slot interiors of one first conductor of the conductor sets located at the remaining layers in the radial direction of the stator core in the phase winding is 11, and the pitch between the two slot interiors of two second conductors of the conductor sets located at the remaining layers in the radial direction of the stator core in the phase winding is 8, the pitch between the connecting welding terminals located at the 3 rd and 4 th layers in the radial direction of the stator core is a long pitch, the pitch between the connecting welding terminals located at the remaining layers in the radial direction of the stator core is a full pitch, where M is 4Y +2, Y is an integer greater than or equal to 1, m is 6 in this example and Y is 1.

Specifically, in the tenth embodiment, the two slot interiors of the first conductor of the first conductor group 500 of the U-phase winding are respectively located in the 54 th slot of the 2 nd layer and the 11 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first conductor is a long pitch (in the tenth embodiment, the long pitch is 11), the two slot interiors of the first second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 1 st slot of the 2 nd layer and the 9 th slot of the 1 st layer of the stator core, that is, the pitch between the two slot interiors of the first second conductor is a short pitch (in the tenth embodiment, the short pitch is 8), the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding are respectively located in the 2 nd slot of the 2 nd layer and the 10 th slot of the 1 st layer of the stator core, the two slot interiors of the second conductor of the first conductor group 500 of the U-phase winding is a short pitch (in the tenth embodiment, the short pitch is 8); the two inside slots of the first conductor of the second conductor set 500 of the U-phase winding are located in the 4 th and 3 rd slots of the stator core, respectively, i.e., the pitch between the two inside slots of the first conductor is long pitch (in the tenth embodiment, the long pitch is 10), the two inside slots of the first second conductor of the second conductor set 500 of the U-phase winding are located in the 4 th and 3 rd slots of the stator core, respectively, i.e., the pitch between the two inside slots of the first second conductor is short pitch (in the tenth embodiment, the pitch is 7), the two inside slots of the second conductor of the second conductor set 500 of the U-phase winding are located in the 4 th and 3 rd slots of the stator core, respectively, the pitch between the two inside slots of the second conductor set 500 of the U-phase winding is short pitch (in the tenth embodiment, the short pitch is 7); the pitch between the welding ends connected in the radial 3 rd and 4 th layers of the stator core at one end 25 outside the axial slot of the stator core in the U-phase winding is a long pitch, the pitch between the two welding ends connected in the radial 1 st and 2 nd layers, and the 5 th and 6 th layers of the stator core is a whole pitch, that is, the pitch between the welding ends connected in the slot of the conductor located in the radial 9 th layer of the stator core at the corresponding welding end in the slot of the conductor located in the radial 1 st layer 54 th slot of the stator core is a whole pitch (in the tenth embodiment, the whole pitch is 9), the pitch between the welding ends connected in the slot of the conductor located in the radial 1 st layer 1 st slot of the stator core and the welding ends connected in the slot of the conductor located in the radial 2 nd layer 10 th slot of the stator core is a whole pitch, and the welding ends connected in the slot of the conductor located in the radial 1 st layer 2 nd slot of the stator core and the welding ends connected in the slot of the radial 11 th layer of the stator core is a corresponding to the slot The pitch between the welding terminals is a full pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 54 th slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 10 th slot of the stator core is a long pitch (in the tenth embodiment, the long pitch is 10), the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 1 st slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 11 th slot of the stator core is a long pitch, the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 3 rd layer 2 nd slot of the stator core and the welding terminals corresponding to the inside of the slot of the conductor located in the radial 4 th layer 12 th slot of the stator core is a long pitch, and the pitch between the welding terminals corresponding to the inside of the slot of the conductor located in the radial 5 th layer 1 st slot of the stator core and the welding terminals corresponding to the inside of the slot of the radial 6 th layer 10 th slot of the stator core is a full pitch (in this embodiment, the present invention In a tenth embodiment, the full pitch is 9), the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer and 2 nd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 6 th layer and 11 th slot of the stator core is the full pitch, the pitch between the welding ends corresponding to the inside of the slots of the conductor located in the radial 5 th layer and 3 rd slot of the stator core and the welding ends corresponding to the inside of the slots of the conductor located in the radial 6 th layer and 12 th slot of the stator core is the full pitch, in a tenth embodiment, the pitch between the connecting welding ends located in the radial 3 rd layer and 4 th layer of the stator core and the end 25 located in the axial slot of the stator core in the phase winding is the long pitch, and the pitch between the two connecting welding ends located in the radial 1 st layer and 2 nd layer, 5 th layer and 6 th layer of the stator core is the full pitch, which will not be further described herein.

The embodiment also provides a motor, which comprises the motor stator and a motor adopting the motor stator.

The pole pitch is the number of phases of each winding multiplied by the number of magnetic poles of each group of phase conductors, the coil with the pitch larger than the pole pitch is a long-pitch coil, the coil group with the pitch equal to the pole pitch is a full-pitch coil group, and the coil with the pitch smaller than the pole pitch is a short-pitch coil; specifically, each winding includes 3 sets of phase conductors, the number of slots per phase per pole is 2, and then the pole pitch is 2 × 3 or 6.

The utility model discloses in every utmost point every looks slot number the stator slot number/motor pole number/looks number, the pole distance the stator slot number/motor pole number every utmost point every looks slot number the looks number, the quantity in groove is not limited only 48 grooves, can also be the groove of other quantity, for example: the number of slots of each phase of each pole is 2, the corresponding slot poles of the three-phase motor are matched with a 6-pole 36 slot, a 8-pole 48 slot, a 10-pole 60 slot, a 12-pole 72 slot, a 16-pole 96 slot and the like, and the pole distance is 6; the number of slots of each phase of each pole is 3, and the corresponding three-phase motor slot poles are matched with a 6-pole 54 slot, an 8-pole 72 slot, a 10-pole 90 slot, a 12-pole 108 slot, a 16-pole 144 slot and the like, which are not limited one by one.

The embodiment of the utility model provides a motor includes the motor stator in above-mentioned embodiment, consequently the embodiment of the utility model provides a motor also possesses the beneficial effect that the above-mentioned embodiment described, no longer gives unnecessary details here.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the connection may be mechanical or electrical, may be direct, may be indirect via an intermediate medium (bus connection), or may be communication between the two components. The above-described meaning of what is specifically intended in the present invention can be understood in specific instances by those of ordinary skill in the art. Finally, it should be noted that the above description is only a preferred embodiment of the present invention and the technical principles applied.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An electric machine stator comprising:

a stator core having an annular shape and having a plurality of slots uniformly arranged in a proportion of three slots provided for each pole and phase in a circumferential direction;

and

a stator winding having a plurality of phase windings mounted to a plurality of slots of the stator core;

the method is characterized in that: 3X branch windings in each phase winding are sequentially connected in parallel along the circumferential direction of the stator core, wherein X is an integer greater than or equal to 1;

the stator winding includes: a plurality of conductor groups arranged in sequence along a circumferential direction of the stator core;

each of the conductor sets includes: a first conductor and two second conductors, a first conductor of the conductor set surrounding two second conductors of the conductor set;

or, each of the conductor sets includes: two first conductors and one second conductor of the conductor set, the two first conductors of the conductor set surrounding the one second conductor of the conductor set;

each conductor of the conductor set includes: for insertion inside two slots in different slots, each conductor of the conductor set further comprising: one end of the stator core positioned outside the axial slots is connected with two welding ends inside the two slots;

the phase winding further includes: and the outgoing line is positioned on the radial outermost layer of the stator core and/or positioned on the radial innermost layer of the stator core and positioned at the non-welding end of the stator winding.

2. The stator according to claim 1, wherein when the pitch between the inside of the two slots of the first conductor of the conductor set of the phase winding is a long pitch and the pitch between the inside of the two slots of the second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two weld terminals connected to each other at the end outside the axial slots of the stator core in the phase winding is a full pitch.

3. The stator according to claim 1, wherein when the pitch between the inside of the two slots of the two first conductors of the conductor set of the phase winding is a long pitch and the pitch between the inside of the two slots of the one second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected to each other at the axially outer ends of the slots of the stator core in the phase winding is a short pitch.

4. The stator according to claim 1, wherein when the pitch between the inside of two slots of one first conductor of the conductor set of the phase winding is a long pitch and the pitch between the inside of two slots of two second conductors of the conductor set of the phase winding is a full pitch, the pitch between two weld terminals connected at one end of the phase winding located axially outside the slots of the stator core is a short pitch.

5. The stator according to claim 1, wherein when the pitch between the inside of the two slots of the first conductors of the conductor set of the phase winding is a full pitch and the pitch between the inside of the two slots of the second conductor of the conductor set of the phase winding is a short pitch, the pitch between the two welding terminals connected to each other at the axially outer ends of the slots of the stator core in the phase winding is a long pitch.

6. The stator according to claim 1, wherein when the pitch between the inside of the two slots of one first conductor of the conductor group of the phase winding is a long pitch and the pitch between the inside of the two slots of the two second conductors of the conductor group of the phase winding is a short pitch, the pitch between the two weld terminals connected at the axially outer ends of the slots of the stator core is a long pitch.

7. The stator for an electric motor according to claim 1, wherein when the pitch between the inside of two slots of two first conductors of the conductor sets positioned at the M/2 th and M/2+1 st layers in the radial direction of the stator core in said phase winding is 11, the pitch between the inside of two slots of one second conductor of the conductor sets positioned at the M/2 th and M/2+1 st layers in the radial direction of the stator core in said phase winding is 8, the pitch between the inside of two slots of two first conductors of the conductor sets positioned at the remaining layers in the radial direction of the stator core in said phase winding is 10, the pitch between the inside of two slots of one second conductor of the conductor sets positioned at the remaining layers in the radial direction of the stator core in said phase winding is 7, the pitch between the connecting welding terminals in the M/2 th and M/2+1 th layers in the radial direction of the stator core is short, and the pitch between two welding ends connected in the radial other layers of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer larger than or equal to 1.

8. The stator for an electric motor according to claim 1, wherein when a pitch between two slot interiors of one first conductor of the conductor sets positioned at the M/2 th and M/2+1 st radial layers of the stator core in said phase winding is 12, a pitch between two slot interiors of two second conductors of the conductor sets positioned at the M/2 th and M/2+1 st radial layers of the stator core in said phase winding is 9, a pitch between two slot interiors of one first conductor of the conductor sets positioned at the remaining radial layers of the stator core in said phase winding is 11, a pitch between two slot interiors of two second conductors of the conductor sets positioned at the remaining radial layers of the stator core in said phase winding is 8, a pitch between connecting welding terminals in the M/2 th and M/2+1 th radial layers of said stator core is short, and the pitch between two welding ends connected in the radial other layers of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer larger than or equal to 1.

9. The stator for an electric motor according to claim 1, wherein when a pitch between two slot interiors of two first conductors of the conductor sets positioned at the M/2 th and M/2+1 st radial layers of the stator core in said phase winding is 9, a pitch between two slot interiors of one second conductor of the conductor sets positioned at the M/2 th and M/2+1 st radial layers of the stator core in said phase winding is 6, a pitch between two slot interiors of two first conductors of the conductor sets positioned at the remaining radial layers of the stator core in said phase winding is 10, a pitch between two slot interiors of one second conductor of the conductor sets positioned at the remaining radial layers of the stator core in said phase winding is 7, a pitch between connecting welding terminals in the M/2 th and M/2+1 th radial layers of said stator core is a long pitch, and the pitch between two welding ends connected in the radial other layers of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer larger than or equal to 1.

10. The stator according to claim 1, wherein when the pitch between the inside of two slots of one first conductor of the conductor set of the M/2 th and M/2+1 st radial layers of the stator core is 10, the pitch between the inside of two slots of two second conductors of the conductor set of the M/2 th and M/2+1 st radial layers of the stator core is 7, the pitch between the inside of two slots of one first conductor of the conductor set of the other radial layers of the stator core is 11, and the pitch between the inside of two slots of two second conductors of the conductor set of the other radial layers of the stator core is 8 in the phase winding, the pitch between the connecting welding terminals in the M/2 th and M/2+1 th radial layers of the stator core is a long pitch, and the pitch between two welding ends connected in the radial other layers of the stator core is a whole pitch, wherein M is 4Y +2, and Y is an integer larger than or equal to 1.

11. An electrical machine comprising an electrical machine stator according to any one of claims 1 to 10.