WO2019228454A1 - Stator assembly and motor - Google Patents

Abstract

A stator assembly (1) and a motor. The stator assembly (1) is provided with a plurality of stator slots (100). A first span (233) is from an r-th layer to an a-th layer of an i-th slot; a second span (234) is from the a-th layer of the i-th slot to the a-th layer of an (i-5)th slot; a third span (235) is from the a-th layer of the (i-5)th slot to the r-th layer of a (i-11)th slot; a fourth span (243) is from the r-th layer of an n-th slot to the a-th layer of an (n-6)th slot; a fifth span (244) is from the a-th layer of the (n-6)th slot to the r-th layer of an (n-12)th slot; a sixth span (333) is from the r-th layer of an i'-th slot to the a-th layer of the i'-th slot; a seventh span (334) is from the a-th layer of the i'-th slot to the a-th layer of an (i'-7)th slot; an eighth span (335) is from the a-th layer of the (i'-7)th slot to the r-th layer of an (i'-13)th slot.

Description

Stator assembly and motor

Cross-reference to related applications

This application claims the priority of Chinese Patent Application No. “201810550257.2” filed by BYD Co., Ltd. on May 31, 2018 with the invention name “Stator Assembly and Motor”.

Technical field

The present application relates to the technical field of motors, and in particular, to a stator assembly and a motor.

Background technique

In the related art, the armature connection method of the rotating electrical machine adopts a wave winding method, that is, a wave from the outermost layer to the innermost layer, and then a reverse wave to the outermost layer. This armature connection method and implementation method, whether from the analysis of manufacturing process or from the perspective of mass manufacturers, there are too many types of flat wire armatures to be produced, and both ends of the axial line need to be welded, and there are many solder joints. In addition, after the flat line is offline, it is difficult to accurately fix it, resulting in high production costs and difficult manufacturing processes. From the perspective of electrical connection, the wave winding method has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easily broken down, resulting in a short circuit and causing the motor to fail.

Summary of the Invention

This application is intended to solve at least one of the technical problems in the related technology. For this reason, this application proposes a stator assembly, which has the advantages of simple structure and high reliability.

The present application also proposes a motor having a stator assembly as described above.

This application also proposes a stator assembly, which has the advantages of simple structure and high reliability.

According to the stator assembly in the embodiment of the present application, the stator assembly is suitable for a z-slot pole 2p pole m-phase motor, and the number of slots per pole and phase of each phase is q = z / m / (2p), and the number of parallel branches is a A≤q, the stator assembly includes a stator core and a stator winding, the stator core has a plurality of stator slots, and the plurality of stator slots are distributed in a circumferential direction of the stator core, and In the circumferential direction of the iron core, the plurality of stator slots are respectively a first slot, a second slot, ..., an i-th slot, ..., an n-th slot, ..., and each of the stator slots has r slots. Layers, the r slot layers are from the radially inner side to the outer side of the stator core, and are the a-th layer, the b-th layer, ..., the j-th layer, ..., the r-th layer; The first winding of each phase includes a first winding portion and a plurality of second winding portions. A starting section of the first winding is configured by one of the second winding portions. The termination section is configured by another said second winding portion, and one end of said first winding portion is connected to a corresponding one of said second winding portions, said first winding The other end of the branch is connected to the corresponding second winding part; in the first winding part, the i-th slot and the r-th layer are the starting end of the first winding part and the (i-11) th slot The r-th layer is the terminating end of the first winding portion, and the first winding portion includes a first span segment, a second span segment, and a third span segment, from the i-th slot to the i-th slot The first layer is the first span segment, and in the first span segment, the winding reciprocates between the i-th slot and the (i-6) -th slot and is radially outward from the stator core. To the radial inner side; from the i-th slot a layer to the (i-5) slot a layer is the second span; from the (i-5) slot a layer to the (i- 11) The r-th layer of the slot is the third span segment, and in the third span segment, the winding reciprocates between the (i-5) th slot and the (i-11) th slot and moves from the stator iron The core is wound from the radially inner side to the radially outer side; in the second winding part, the n-th slot and the r-th layer are the starting ends of the second winding part, and the (n-12) -th slot and the r-th layer are The terminating end of the second winding portion, the second winding portion includes a fourth span segment and a fifth span segment, starting from the nth slot and the rth Layer to the (n-6) th slot, the a-th layer is the fourth step, and the winding reciprocates between the nth slot and the (n-6) th slot in the fourth step, and The stator core is wound from the radially outer side to the radially inner side; from the (n-6) th slot a layer to the (n-12) th slot r layer is the fifth span segment, where In the fifth span, the winding reciprocates between the (n-6) th slot and the (n-12) th slot and is wound from the radially inner side to the radially outer side of the stator core, wherein the first The starting slot of the winding of one path is the stator slot opposite to the circumference of the i-th slot. The outermost layer of the starting slot of the winding of the first path is connected to the first lead-out wire, and the ending slot of the winding of the first path and There are six stator slots between the starting slot of the first winding, and the second outer layer of the ending slot of the winding of the first winding is connected to the first star point line; the second winding of each phase of the stator winding The winding includes a third winding portion and a plurality of fourth winding portions. The start section of the second winding is configured by one of the fourth winding sections, and the ending section of the second winding is formed by one. The fourth winding portion is configured such that one end of the third winding portion is in phase with The corresponding one of the fourth winding portions is connected, and the other end of the third winding portion is connected to the corresponding other of the fourth winding portions; in the third winding portion, the i'th slot and the r-th layer are The starting end of the third winding part, the (i'-13) th slot, the r-th layer is the ending end of the third winding part, and the third winding part includes a sixth span segment and a seventh span segment And the eighth span, from the i'th slot to the r'th layer to the i 'slot to the a'th layer is the sixth span, and in the sixth span, the winding is in the i' slot and The (i'-6) th slot is reciprocated and wound from the radially outer side to the radial inner side of the stator core; from the i'th slot a layer to the (i'-7) th slot a layer is The seventh step; from the (i'-7) th slot a layer to the (i'-13) th slot r layer is the eighth step, within the eighth step , The winding reciprocates between the (i'-7) th slot and the (i'-13) th slot and is wound from the radially inner side to the radially outer side of the stator core; within the fourth winding portion , The r'th layer of the n'th slot is the starting end of the fourth winding part, and the rth layer of the (n'-12) th slot is the The terminating end of the four winding section, the fourth winding section includes the ninth and tenth spans, from the n'th slot to the (n'-6) th slot and the a layer is the first A nine-span jump segment, in which the winding reciprocates between the n'th slot and the (n'-6) th slot and is wound from a radially outer side to a radially inner side of the stator core Line; from the (n'-6) th slot a layer to the (n'-12) th slot r layer is the tenth span, and in the tenth span, the winding is at the ( n'-6) slot and (n'-12) slot are reciprocated and wound from the radial inner side to the radial outer side of the stator core, wherein the starting slot of the second winding is the first The stator grooves on the circumference of the slot i ′ are opposite to each other. The outermost layer of the starting slot of the second winding is connected to the second lead-out wire, and the ending slot of the second winding is connected to the start of the second winding. There are four stator slots between the starting slots, and the second outer layer of the ending slot of the second winding winding is connected to the second star point line.

According to the stator assembly of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slots can be balanced and the slot moment angle can be suppressed. The phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the internal circulation of the stator winding can be suppressed, and the effect of low temperature rise can be suppressed. In addition, while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Greatly suppresses vibration and noise during motor operation. In addition, the stator winding adopts a stacked winding method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make both the first lead-out line and the first star point line be arranged at the welding end of the stator assembly, and the welding end can be fully utilized. Height, which can improve the space utilization of the stator assembly. In addition, this wiring method can facilitate the user to adjust the winding, and can effectively avoid the situation of circulating current during the winding adjustment, thereby improving the reliability of the stator assembly.

According to some embodiments of the present application, i = i'-1; n = n'-1.

According to some embodiments of the present application, the stator winding includes a plurality of conductor segments, and each of the conductor segments includes a bent portion and a first in-slot portion and a second in-slot portion respectively connected to the bent portion, The inner portion of the first slot and the second slot portion of the plurality of conductor segments located adjacent to each other are welded at a welding end.

In some embodiments of the present application, the conductor segment includes a first-type conductor segment, a second-type conductor segment, and a third-type conductor segment, and the inner portion of the first slot of the first-type conductor segment and the The pitch between the second slot inner portions is (y-1) the stator slots, and the pitch between the first slot inner portion and the second slot inner portion of the second type of conductor segment Are y stator slots, and a pitch between the first slot inner portion and the second slot inner portion of the third type of conductor segment is (y + 1) the stator slots, where y Is an integer and y = z / 2p.

In some examples of the present application, the first type of conductor segment is located within the second span segment, and the first slot portion of the first type conductor segment is located at an innermost layer of one of the stator slots. The inner portion of the second slot of the first type of conductor segment is located at the innermost layer of the other stator slot.

In some examples of the present application, the second type of conductor segment is located in the first and third jump segments, the fourth and fifth jump segments, In the sixth and eighth spans, and in the ninth and tenth spans; the second type of conductor segment includes conductor segments of the same layer and different layers A conductor segment of the same slot, the inner portion of the first slot is located at the outermost layer of one of the stator slots, the inner portion of the second slot is located at the outermost layer of the other stator slot, or The inner portion of the first slot of the conductor segment of the same layer is located at the innermost layer of one of the stator slots, and the inner portion of the second slot is located at the innermost layer of the other stator slot; The inner portion of the first slot of the conductor segment is located at the middle slot layer of one of the stator slots, and the inner portion of the second slot is located at the middle slot layer of the other stator slot, and the different layers span.

In some examples of the present application, the third-type conductor segment is located in the seventh span segment, and the first slot portion of the third-type conductor segment is located at an innermost layer of one of the stator slots, The second slot portion of the third type of conductor segment is located at the innermost layer of the other stator slot.

A motor according to an embodiment of the present application includes the stator assembly as described above.

According to the motor of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slots can be balanced and the potential of the slot moment angle can be suppressed. The phase angle is different, so that the potential balance between circuit windings can be achieved, the internal circulation of the stator windings can be suppressed, and the effect of low temperature rise can be suppressed. In addition, while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Amplify vibration and noise during motor operation. In addition, the stator winding adopts a stacked winding method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make both the first lead-out line and the first star point line be arranged at the welding end of the stator assembly, and the welding end can be fully utilized. Height, which can improve the space utilization of the stator assembly. In addition, this wiring method can facilitate the user to adjust the winding, and can effectively avoid the situation of circulating current during the winding adjustment process, thereby improving the reliability of the stator assembly and effectively preventing the failure of the motor.

According to the stator assembly of the embodiment of the present application, the stator assembly is suitable for a z-slot 2p-pole and m-phase motor, and the number of slots per pole and phase of each phase is q = z / m / (2p), and the number of parallel branches is a, a≤q, the stator assembly includes a stator core and a stator winding, the stator core has 48 stator slots, and a plurality of the stator slots are distributed along a circumferential direction of the stator core, In the circumferential direction of the core, the plurality of stator slots are respectively the first slot, the second slot, ..., and the 48th slot. Each of the stator slots has 6 slot layers, and the 6 slot layers are formed from The directions from the radially inner side to the outer side of the stator core are layer a, layer b, ..., and layer f, respectively; the first winding of each phase of the stator winding includes a first winding portion and a plurality of layers. A second winding part, the start section of the first winding is configured by one of the second winding sections, the end section of the first winding is configured by one of the second winding sections, the One end of the first winding portion is connected to a corresponding one of the second winding portions, and the other end of the first winding portion is connected to a corresponding another. The two winding sections are connected; in the first winding section, the 25th slot and the f-th layer are the starting ends of the first winding section, and the 14th slot and the f-th layer are the end ends of the first winding section, the The first winding part includes a first span segment, a second span segment, and a third span segment. The first span segment is from the 25th slot, the f-th layer to the 25th slot, the a-th layer, and In a span, the winding reciprocates between the 25th slot and the 19th slot and is wound from the radial outer side to the radial inner side of the stator core; from the 25th slot a layer to the 20th slot a The layer is the second span; from the 20th slot, the a-th layer to the 14th slot, the f-th layer is the third jump, in which the windings are in the 20th slot and the 14th The slots are wound back and forth from the radially inner side to the radially outer side of the stator core; in the second winding portion, the first slot and the f-th layer are the starting ends of the second winding portion, and the 37th The slot f layer is the terminating end of the second winding portion, and the second winding portion includes a fourth span segment and a fifth span segment, from the 37th slot, the fth layer to the 43rd slot, the ath layer The fourth span In the segment, the winding reciprocates between the 1st slot and the 43rd slot and is wound from the radially outer side to the radially inner side of the stator core; from the 43rd slot a layer to the 37th slot f layer The fifth jump segment, in which the winding reciprocates between the 43rd slot and the 37th slot and is wound from the radially inner side to the radially outer side of the stator core; The starting slot of the winding of the first route is the stator slot opposite to the circumference of the 25th slot. The outermost layer of the starting slot of the winding of the first route is connected to the first lead-out wire, and the termination of the winding of the first route is There are six stator slots between the slot and the starting slot of the first winding, and the second outer layer of the ending slot of the first winding is connected to the first star point line; The two-way winding includes a third winding portion and a plurality of fourth winding portions. The starting section of the second winding is configured by one of the fourth winding portions, and the ending section of the second winding is formed by One of the fourth winding portions is configured such that one end of the third winding portion is connected to a corresponding one of the fourth winding portions, and the other end of the third winding portion is connected to The other fourth winding part should be connected; in the third winding part, the 26th slot and the fth layer are the starting ends of the third winding part, and the 13th slot and the fth layer are the third winding The terminating part of the third winding part includes the sixth span, the seventh span, and the eighth span. The sixth span is from the 26th slot, the f-th layer to the 26th slot, the a-th layer. In the sixth step, the winding reciprocates between the 26th slot and the 20th slot and is wound from the radially outer side to the radially inner side of the stator core; from the 26th slot to the a Layer to slot 19 and layer a is the seventh span; from slot 19 to layer 13 to slot 13 and f is the eighth span, and in the eighth span, The winding is reciprocated between the 19th slot and the 13th slot and is wound from the radially inner side to the radially outer side of the stator core; in the fourth winding portion, the second slot, the f-th layer is the first slot. The starting end of the four winding part, the 38th slot and the f-th layer are the ending ends of the fourth winding part, and the fourth winding part includes the ninth and tenth spans, starting from the second slot and the fth layer To the 44th slot, the a layer is the ninth In the ninth span, the winding reciprocates between the second slot and the 44th slot and is wound from the radial outer side to the radial inner side of the stator core; from the 44th slot to the a The layer to the 38th slot and the fth layer are the tenth span, in which the winding reciprocates between the 44th slot and the 38th slot and from the radial direction of the stator core. Inside to radial outside winding; wherein the starting slot of the second winding is the stator slot opposite to the circumference of the second slot, and the outermost layer of the starting slot of the second winding is connected to the second lead-out wire There are four stator slots between the end slot of the second winding and the start slot of the second winding, and the second outer point of the second slot winding termination slot is connected to the second star point. line.

According to the stator assembly of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slots can be balanced and the slot moment angle can be suppressed. The phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the internal circulation of the stator winding can be suppressed, and the effect of low temperature rise can be suppressed. In addition, while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. Greatly suppresses vibration and noise during motor operation. In addition, the stator winding adopts a stacked winding method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make both the first lead-out line and the first star point line be arranged at the welding end of the stator assembly, and the welding end can be fully utilized. Height, which can improve the space utilization of the stator assembly. In addition, this wiring method can facilitate the user to adjust the winding, and can effectively avoid the situation of circulating current during the winding adjustment, thereby improving the reliability of the stator assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of a first winding of a stator assembly according to an embodiment of the present application;

FIG. 2 is an enlarged view of the structure at A in FIG. 1; FIG.

3 is an enlarged view of the structure at B in FIG. 1;

4 is a winding schematic diagram of a first winding of a stator assembly according to an embodiment of the present application;

5 is a schematic diagram of a second winding of a stator assembly according to an embodiment of the present application;

6 is an enlarged view of the structure at C in FIG. 5;

7 is an enlarged view of a structure at D in FIG. 5;

8 is a winding schematic diagram of a second winding of a stator assembly according to an embodiment of the present application;

9 is a schematic structural diagram of a stator core of a stator assembly according to an embodiment of the present application;

10 is a schematic structural diagram of a stator assembly according to an embodiment of the present application;

11 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

12 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

13 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

14 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

15 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

16 is a schematic structural diagram of a second type of conductor segment of a stator assembly according to an embodiment of the present application;

17 is a schematic structural diagram of a first type of conductor segment of a stator assembly according to an embodiment of the present application;

18 is a schematic structural diagram of a third type of conductor segment of a stator assembly according to an embodiment of the present application.

Reference signs:

Stator assembly 1,

Stator core 10, stator slot 100, slot layer 101,

Stator winding 20,

The first winding 200, the first winding 210, the first lead 211, the first winding 220, the first star point line 221,

A first winding portion 230, a start end 231 of the first winding portion, and a termination end 232 of the first winding portion,

The first span 233, the second span 234, the third span 235,

The second winding portion 240, the start end 241 of the second winding portion, the end end 242 of the second winding portion,

Fourth step 243, fifth step 244,

The second route winding 300, the second route winding start section 310, the second outgoing line 311, the second route winding end section 320, and the second star point line 321,

The third winding section 330, the start end 331 of the third winding section, the end end 332 of the third winding section, the sixth span 333, the seventh span 334, the eighth span 335,

The fourth winding portion 340, the starting end 341 of the fourth winding portion, the ending end 342 of the fourth winding portion, the ninth span 343, the tenth span 344,

Conductor section 400, bent portion 401, first slot inner portion 402, second slot inner portion 403,

The first type of conductor segment 410,

Second type conductor segment 420, first type conductor segment 421, second type conductor segment 422, third type conductor segment 423, fourth type conductor segment 424,

The third type of conductor segment 430.

Detailed ways

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear "," left "," right "," vertical "," horizontal "," top "," bottom "," inside "," outside "," clockwise "," counterclockwise "," axial ", The directions or positional relationships indicated by “radial” and “circumferential” are based on the positional or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the device or element referred to. It must have a specific orientation and be constructed and operated in a specific orientation, so it cannot be understood as a limitation on this application. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "a plurality" means two or more.

In the description of this application, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense, unless explicitly stated and limited otherwise. For example, they may be fixed connections or removable. Connection, or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

According to the stator assembly 1 in the embodiment of the present application, the stator assembly 1 is suitable for a z-slot pole 2p-pole m-phase motor, and the number of slots per phase per pole is q = z / m / (2p), and the number of parallel branches is a , A≤q. What needs to be explained here is that z is the number of stator slots, m is the number of phases, and 2p is the number of poles. For example, z can be 24, 48, 72, etc., the number of phases m can be three-phase, two-phase, or single-phase, and the number of pole pairs p can be eight-pole, four-pole, etc., which can be set according to the specific applicable motor.

As shown in FIGS. 9 to 10, the stator assembly 1 includes a stator core 10 and a stator winding 20. The stator core 10 has a plurality of stator slots 100, and the plurality of stator slots 100 are distributed along a circumferential direction of the stator core 10. In the circumferential direction of the stator core 10, the plurality of stator slots 100 are respectively the first slot, the second slot, ..., the i-th slot, ..., the n-th slot, ..., and each stator slot 100 has r slots. The layers 101 and r slot layers 101 are respectively the a-th layer, the b-th layer, ..., the j-th layer, ..., and the r-th direction from the radially inner side to the outer side of the stator core 10.

As shown in FIG. 4, each phase of the first winding 200 of the stator winding 20 includes a first winding portion 230 and a plurality of second winding portions 240. A starting section 210 of the first winding includes a second winding portion 240. It is configured that the termination section 220 of the first winding is configured by another second winding portion 240, one end of the first winding portion 230 is connected to the corresponding one of the second winding portions 240, and the other end of the first winding portion 230 is connected to A corresponding other second winding portion 240 is connected. In the first winding portion 230, the i-th slot and the r-th layer are the starting end 231 of the first winding portion, and the (i-11) th slot and the r-th layer are the ending end 232 of the first winding portion.

As shown in FIG. 4, the first winding part 230 includes a first span segment 233, a second span segment 234, and a third span segment 235, and the first layer from the i-th slot to the i-th slot is the first layer. In the jump segment 233, in the first jump segment 233, the winding reciprocates between the i-th slot and the (i-6) -th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The second span segment 234 is from the i-th slot and the a-th layer to the (i-5) -th slot and the a-th layer. From the (i-5) th slot a to the (i-11) th slot r is the third jump segment 235. In the third jump segment 235, the winding is in the (i-5) th slot and The (i-11) th slot is reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.

As shown in FIG. 4, in the second winding portion 240, the n-th slot and the r-th layer are the starting end 241 of the second winding portion, and the (n-12) slot r-layer is the end-end 242 of the second winding portion. The second winding portion 240 includes a fourth span segment 243 and a fifth span segment 244. The fourth span segment 243 is the nth slot from the r-th layer to the (n-6) th slot and the a-th layer. In the jump segment 243, the winding reciprocates between the nth slot and the (n-6) th slot and is wound from the radially outer side to the radially inner side of the stator core 10. From the (n-6) th slot a to the (n-12) th slot the rth layer is the fifth jump segment 244. In the fifth jump segment 244, the winding is between the (n-6) th slot and The (n-12) th slot is reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.

As shown in FIGS. 1-4, the starting slot of the first winding 200 is the stator slot 100 whose circumference is opposite to the i-th slot, and the outermost layer of the starting slot of the first winding 200 is connected to the first lead 211. There are six stator slots 100 between the ending slot of the first winding 200 and the starting slot of the first winding 200. The second outer layer of the ending slot of the first winding 200 is connected to the first star point line 221. .

It should be noted that in the process of counting the number of slots, when a certain slot needs to be determined, the i-th slot can be used as the starting point. When it is necessary to count to the "i-\ + *" slot, where i and * When the time is "-", the number of "*" slots is counted in a counterclockwise direction as shown in Fig. 9, and when "+" between i and *, the number of "*" slots is counted in a clockwise direction as shown in FIG. . For example, when you need to count to the "i-11" slot, where "-" is between i and 11, then count "11" slots counterclockwise as shown in Figure 9; for another example, when you need to count When the "i + 1" th slot is reached, where "+" is between i and 1, the number of "1" slots is counted in the counterclockwise direction shown in FIG.

Similarly, in the process of counting the number of slots, you need to determine the slot, starting with the nth slot, when you need to count to the "n-\ + *" slot, where between n and * is When "-", the number of "*" slots is counted in the counterclockwise direction shown in Fig. 9, and when "+" is provided between n and *, the number of "*" slots is counted in the clockwise direction shown in FIG. For example, when you need to count to the "n-6th" slot, where "-" is between n and 6, then count "6" slots counterclockwise as shown in Figure 9; for another example, when you need to count When the "n + 7" th slot is reached, where "+" is between n and 7, the number of "7" slots is counted in the counterclockwise direction shown in FIG.

As shown in FIG. 5, each phase of the second winding 300 of the stator winding 20 includes a third winding portion 330 and a plurality of fourth winding portions 340. The starting section 310 of the second winding includes a fourth winding portion 340. The end section 320 of the second winding is formed by a fourth winding portion 340. One end of the third winding portion 330 is connected to a corresponding one of the fourth winding portions 340, and the other end of the third winding portion 330 is connected to the corresponding another fourth winding portion 340.

As shown in FIG. 5, in the third winding portion 330, the i'th slot and the r-th layer are the starting end 331 of the third winding portion, and the (i'-13) slot r-layer is the end of the third winding portion. 332, the third winding section 330 includes a sixth jump segment 333, a seventh jump segment 334, and an eighth jump segment 335, and the sixth jump from the i'th slot to the r'th layer to the i'th slot Segment 333, in the sixth span segment 333, the winding reciprocates between the i'th slot and the (i'-6) th slot and is wound from the radially outer side to the radially inner side of the stator core 10. A seventh span 334 is from the i'th slot a layer to the (i'-7) th slot a layer. From the (i'-7) th slot a to the (i'-13) th slot r is the eighth span 335. In the eighth span 335, the winding is at the (i'-7) ) Slot and (i'-13) slot are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.

As shown in FIG. 5, in the fourth winding portion 340, the n'th slot and the r-th layer are the starting end 341 of the fourth winding portion, and the (n'-12) slot r-th layer is the end of the fourth winding portion. 342, the fourth winding portion 340 includes a ninth span 343 and a tenth span 344, and the nth slot from the r'th layer to the (n'-6) th slot a layer is the ninth span 343, In the ninth span segment 343, the winding is reciprocated between the n'th slot and the (n'-6) th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The tenth span 344 from the (n'-6) th slot a to the (n'-12) th slot r is the tenth span 344, and the winding is at the (n'-6th) ) Slot and (n′-12) th slot are reciprocated and wound from the radially inner side to the radially outer side of the stator core 10.

As shown in FIG. 5 to FIG. 8, the starting slot of the second winding 300 is the stator slot 100 whose circumference is opposite to the i ′ slot, and the outermost layer of the starting slot of the second winding 300 is connected to the second lead-out wire. 311, there are four stator slots 100 between the ending slot of the second winding 300 and the starting slot of the second winding 300, and the second outer point of the ending slot of the second winding 300 is connected to the second star point line 321.

It should be noted that, in the process of counting the number of slots, when determining a certain slot, the i-th slot can be used as the starting point. When it is necessary to count to the "i '-\ + *" slot, where i' and When "-" between "*", the number of "*" slots in the counterclockwise direction shown in Fig. 9 and "+" between i 'and *, the number of "*" in the clockwise direction shown in FIG. 9 "Slot. For example, when you need to count to the "i'-7" slot, where "-" is between i 'and 7, then count "7" slots counterclockwise as shown in Figure 9; for another example, when When it is necessary to count to the "i '+ 1" slot, where "+" is between i' and 1, the number of "1" slots is counted in the counterclockwise direction shown in FIG.

Similarly, in the process of counting the number of slots, you can determine the slot, starting with the n 'slot, when you need to count to the "n'-\ + *" slot, where n 'and * When the number is "-", the number of slots is "*" in the counterclockwise direction shown in FIG. 9; when the number between n 'and * is "+", the number of numbers is "*" in the clockwise direction shown in FIG. Slots. For example, when you need to count to the "n'-12" slot, where "-" is between n 'and 12, then count "12" slots in the counterclockwise direction shown in Figure 9; for another example, when When it is necessary to count to the "n '+ 7" slot, where "+" is provided between n' and 7, the number of "7" slots is counted in the counterclockwise direction shown in FIG.

According to the stator assembly 1 of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slot 100 can be balanced and the slot moment can be suppressed. The potentials of the angles are different from each other, so that the potentials between the circuit windings can be balanced, the circulating current in the stator winding 20 can be suppressed, and the effect of low temperature rise can be suppressed. Moreover, while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. , Which can greatly suppress the vibration and noise during motor operation. Moreover, the stator winding 20 adopts a stacking wiring method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make the first lead-out wire 211 and the first star point line 221 both be arranged at the welding end of the stator assembly 1, so that By making full use of the height of the welding end, the space utilization of the stator assembly 1 can be improved. In addition, this wiring method can facilitate the user to adjust the winding, can effectively avoid the situation of circulating current during the winding adjustment process, and can improve the reliability of the stator assembly 1.

Comparing FIG. 4 and FIG. 8, according to some embodiments of the present application, i = i'-1 and n = n'-1. It can be understood that the i-th slot is adjacent to the i'-th slot, and the n-th slot is adjacent to the n'-th slot. Therefore, the setting of the first winding 200 and the second winding 300 of each phase can be made more compact and reasonable, the winding structure of the stator winding 20 can be optimized, and the working performance of the stator winding 20 can be improved.

As shown in FIGS. 1 to 3, 5 to 7, and 10 to 18, according to some embodiments of the present application, the stator winding 20 includes a plurality of conductor segments 400, and each conductor segment 400 includes a bent portion 401 and The first in-slot portion 402 and the second in-slot portion 403 connected to the bent portion 401, respectively. The first and second in- slot portions 402 and 403 of the plurality of conductor segments 400 located on adjacent layers are welded at the welding ends. connection. The conductor segment 400 has a simple setting structure, a convenient forming process, few required equipment, and easy mass production, and the welding end can be located on the same side of the stator core 10 to facilitate welding. As shown in FIGS. 1 and 5, the bent portion 401 of the conductor segment 400 is located on the left side of the stator core 10 (as shown on the left side of FIG. 1 and FIG. 5), and the soldered ends of the conductor segment 400 are located on the stator iron. The right side of the core 10 (the right side shown in Figs. 1 and 5).

As shown in FIGS. 1-3, 5-7, and 10-18, in some embodiments of the present application, the conductor segment 400 includes a first-type conductor segment 410, a second-type conductor segment 420, and a third-type conductor segment. Conductor segment 430, the pitch between the first slot inner portion 402 and the second slot inner portion 403 of the first type conductor segment 410 is (y-1) stator slots 100, and the first slot of the second type conductor segment 420 The pitch between the inner portion 402 and the second slot inner portion 403 is y stator slots 100, and the pitch between the first slot inner portion 402 and the second slot inner portion 403 of the third type conductor segment 430 is (y +1) stator slots 100, where y is an integer and y = z / 2p. For example, y can be 6. As a result, winding can be achieved through the first type of conductor segment 410, the second type of conductor segment 420, and the third type of conductor segment 430. The type of conductor segment 400 is small, the forming process is convenient, the required equipment is small, and mass production is easy.

As shown in FIG. 3 and FIG. 4, in some examples of the present application, the first type conductor segment 410 is located in the second span segment 234, and the first type conductor segment 402 in the first slot portion 402 is located in a stator slot 100 The innermost layer of the first type conductor segment 410 is located in the innermost layer of the other stator slot 100.

As shown in FIG. 1 to FIG. 8, in some examples of the present application, the second type of conductor segment 420 is located within the first and third jump segments 233 and 235, and the fourth and fifth jump segments 243 and 243. Within segment 244, within sixth and eighth spans 333 and 335, and within ninth and tenth spans 343 and 344. The second type of conductor segment 420 includes a conductor segment 400 of the same layer and a conductor segment 400 of a different layer. The first slot inner portion 402 of the same layer conductor segment 400 is located at the outermost layer of a stator slot 100, and the second slot inner portion 403 Located in the outermost layer of another stator slot 100, or the first slot inner portion 402 of the conductor segment 400 on the same layer is located in the innermost layer of one stator slot 100, and the second slot inner portion 403 is located in the innermost portion of the other stator slot 100 Floor. The first slot inner portion 402 of the conductor segment 400 of the different layer is located at the middle slot layer 101 of one stator slot 100, and the second slot inner portion 403 is located at the middle slot layer 101 of the other stator slot 100, and the different layers span.

For example, as shown in FIGS. 1 to 8, the second type of conductor segment 420 may include a first type of conductor segment 421, a second type of conductor segment 422, a third type of conductor segment 423, and a fourth type of conductor segment 424. The conductor segment 421 and the fourth conductor segment 424 are both conductor segments 400 of the same layer. The first slot inner portion 402 of the first conductor segment 421 is located at the innermost layer of a stator slot 100, and the second slot inner portion 403 is located at the other layer. The innermost layer of one stator slot 100, the first slot inner portion 402 of the fourth conductor segment 424 is located at the outermost layer of one stator slot 100, and the second slot inner portion 403 is located at the outermost layer of the other stator slot 100. The two types of conductor segments 422 and the third type of conductor segments 423 are conductor segments 400 of different layers. The first conductor portion 402 of the second conductor segment 422 is located at the b-th layer of the stator slot 100 and the second conductor portion 403 It is located at the c level of the other stator slot 100. The first in-slot portion 402 of the fourth conductor segment 424 is located at the d-th layer of one stator slot 100, and the second slot portion 403 is at the e-th layer of the other stator slot 100. .

As shown in FIG. 7 to FIG. 8, in some examples of the present application, the third type conductor segment 430 is located in the seventh span segment 334, and the first slot inner portion 402 of the third type conductor segment 430 is located in a stator slot 100. The innermost layer, the second in-slot portion 403 of the third type of conductor segment 430 is located at the innermost layer of the other stator slot 100.

A motor according to an embodiment of the present application includes the stator assembly 1 as described above.

According to the motor of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slot 100 can be balanced and the slot moment angle can be suppressed. The phase angle of the potential is different, so that the potential balance between the circuit windings can be achieved, the circulating current in the stator winding 20 can be suppressed, and the effect of low temperature rise can be suppressed. Moreover, while suppressing the circulating current, the harmonic electromagnetic excitation generated by the circulating current can also be suppressed. Can greatly suppress the vibration and noise during motor operation. Moreover, the stator winding 20 adopts a stacking wiring method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make the first lead-out wire 211 and the first star point line 221 both be arranged at the welding end of the stator assembly 1, so that By making full use of the height of the welding end, the space utilization of the stator assembly 1 can be improved. In addition, this wiring method can facilitate the user to adjust the winding, can effectively avoid the situation of circulating current during the winding adjustment process, thereby improving the reliability of the stator assembly 1 and effectively preventing the motor from failing.

According to the stator assembly 1 in the embodiment of the present application, the stator assembly 1 is suitable for a z-slot 2p-pole and m-phase motor, and the number of slots per pole and phase of each phase is q = z / m / (2p), and the number of parallel branches is a. a≤q.

As shown in FIGS. 1, 4-5, and 8-9, the stator assembly 1 includes a stator core 10 and a stator winding 20. The stator core 10 has 48 stator slots 100, and multiple stator slots 100 extend along the stator iron. The core 10 is distributed in the circumferential direction. In the circumferential direction of the stator core 10, the plurality of stator slots 100 are the first slot, the second slot, ..., the 48th slot, and each of the stator slots 100 has six slots. The slot layers 101 and the six slot layers 101 are respectively the a-th layer, the b-th layer, ..., and the f-th direction from the radially inner side to the outer side of the stator core 10.

As shown in FIG. 4, each phase of the first winding 200 of the stator winding 20 includes a first winding portion 230 and a plurality of second winding portions 240. For example, each phase of the first winding 200 of the stator winding 20 includes one first winding portion 230 and three second winding portions 240. The start section 210 of the first winding is configured by a second winding section 240, and the end section 220 of the first winding is configured by a second winding section 240. One end of the first winding section 230 and a corresponding one The second winding portion 240 is connected, and the other end of the first winding portion 230 is connected to the corresponding another second winding portion 240.

As shown in FIG. 4, in the first winding portion 230, the 25th slot and the f-th layer are the starting end 231 of the first winding portion, the 14th slot and the f-th layer are the end 232 of the first winding portion, and the first winding portion 230 includes a first jump segment 233, a second jump segment 234, and a third jump segment 235. From the 25th slot, the f-th layer to the 25th slot, the a-th layer is the first jump segment 233. In the segment 233, the winding reciprocates between the 25th slot and the 19th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The second span segment 234 is from the 25th slot a layer to the 20th slot a layer. From the 20th slot, the ath layer to the 14th slot, the fth layer is the third jump segment 235. In the third jump segment 235, the winding reciprocates between the 20th slot and the 14th slot and runs from the stator core 10 From the radial inside to the radial outside.

As shown in FIG. 4, in the second winding portion 240, the first slot f layer is the starting end 241 of the second winding portion, the 37th slot f layer is the end end 242 of the second winding portion, and the second winding portion 240 includes a fourth jump segment 243 and a fifth jump segment 244. The fourth jump segment 243 is from the 1st slot, the f-th layer to the 43th slot, the a-th layer. In the fourth jump segment 243, the winding is at The first slot and the 43rd slot are reciprocated and wound from the radially outer side to the radially inner side of the stator core 10. From the 43rd slot, the a-th layer to the 37th slot, the f-th layer is the fifth span section 244. In the fifth span section 244, the winding reciprocates between the 43rd slot and the 37th slot and runs from the stator core 10 From the radial inside to the radial outside.

The starting slot of the first winding 200 is the stator slot 100 whose circumference is opposite to the 25th slot, and the outermost layer of the starting slot of the first winding 200 is connected to the first lead-out wire 211. For example, the stator slot 100 whose circumference is opposite to the 25th slot is the first slot, and the f-th layer of the first slot has a first lead-out wire. There are six stator slots 100 between the ending slot of the first winding 200 and the starting slot of the first winding 200. The second outer layer of the ending slot of the first winding 200 is connected to the first star point line 221. For example, the eighth slot outer layer has a first star point line 221.

As shown in FIG. 8, each phase of the second winding 300 of the stator winding 20 includes a third winding portion 330 and a plurality of fourth winding portions 340. The starting section 310 of the second winding includes a fourth winding portion 340. The end section 320 of the second winding is formed by a fourth winding portion 340. One end of the third winding portion 330 is connected to a corresponding one of the fourth winding portions 340, and the other end of the third winding portion 330 is connected to the corresponding another fourth winding portion 340.

As shown in FIG. 8, in the third winding portion 330, the 26th slot and the f-th layer are the starting end 331 of the third winding portion, the 13th slot and the f-th layer are the terminating end 332 of the third winding portion, and the third winding portion 330 includes a sixth jump segment 333, a seventh jump segment 334, and an eighth jump segment 335. The sixth jump segment 333 is from the 26th slot, the f-th floor to the 26th slot, the a-th floor, and the sixth jump In the segment 333, the winding reciprocates between the 26th slot and the 20th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The seventh span 334 is from the 26th layer a to the 19th slot a. From the 19th slot, the ath layer to the 13th slot, the fth layer is the eighth span segment 335. In the eighth span segment 335, the winding reciprocates between the 19th slot and the 13th slot and runs from the stator core 10 From the radial inside to the radial outside.

As shown in FIG. 8, in the fourth winding portion 340, the second slot f layer is the start end 341 of the fourth winding portion, the 38th slot f layer is the end end 342 of the fourth winding portion, and the fourth winding portion 340 includes the ninth jump segment 343 and the tenth jump segment 344. The ninth jump segment 343 is from the second slot, the f-th layer to the 44th slot, the a-th layer. The second slot and the 44th slot are reciprocated and wound from the radially outer side to the radially inner side of the stator core 10. From the 44th slot to the 38th slot and the fth layer is the tenth span segment 344. In the tenth span segment 344, the winding reciprocates between the 44th and 38th slots and runs from the stator core 10 From the radial inside to the radial outside. The starting slot of the second winding 300 is the stator slot 100 opposite to the circumference of the second slot.

The outermost layer of the starting slot of the second winding 300 is connected to the second lead-out wire 311. There are four stator slots 100 between the ending slot of the second winding 300 and the starting slot of the second winding 300. The second outer layer of the termination slot of the two-way winding 300 is connected to the second star point line 321. For example, as shown in FIG. 8, the f-th layer in the second slot has a second lead-out line 311, and the seventh outer layer has a second star-dotted line 321.

According to the stator assembly 1 of the embodiment of the present application, during the winding process, by setting the pitches of multiple span segments to be different from the pitches of other span segments, the potential vector of the stator slot 100 can be balanced and the slot moment can be suppressed. The potentials of the angles are different from each other, so that the potentials between the circuit windings can be balanced, the circulating current in the stator winding 20 can be suppressed, and the effect of low temperature rise can be suppressed. Moreover, while suppressing the circulating current, it can also suppress the harmonic electromagnetic excitation generated by the circulating current. , Which can greatly suppress the vibration and noise during motor operation. Moreover, the stator winding 20 adopts a stacking wiring method, and the arrangement is simple and convenient to implement. Moreover, this wiring method can make the first lead-out wire 211 and the first star point line 221 both be arranged at the welding end of the stator assembly 1, so that By making full use of the height of the welding end, the space utilization of the stator assembly 1 can be improved. In addition, this wiring method can facilitate the user to adjust the winding, can effectively avoid the situation of circulating current during the winding adjustment process, and can improve the reliability of the stator assembly 1.

In the description of this specification, the descriptions with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like mean specific features described in conjunction with the embodiments or examples , Structure, materials, or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Those skilled in the art can interpret the above within the scope of the present application. Embodiments are subject to change, modification, substitution, and modification.

Claims (9)

1. A stator assembly is suitable for a z-slot pole 2p pole m-phase motor. The number of slots per pole per phase is q = z / m / (2p), the number of parallel branches is a, and a≤q The stator assembly includes a stator core and a stator winding. The stator core has a plurality of stator slots. The plurality of stator slots are distributed along a circumferential direction of the stator core. In the direction, the plurality of stator slots are respectively a first slot, a second slot, ..., an i-th slot, ..., an n-th slot, ..., and each of the stator slots has r slot layers and r slots. The slot layers are the a-th layer, the b-th layer, ..., the j-th layer, ..., the r-th layer in the directions from the radially inner side to the outer side of the stator core;

   It is characterized in that the first winding of each phase of the stator winding includes a first winding portion and a plurality of second winding portions, and a starting section of the first winding is configured by one of the second winding portions. The termination section of the first winding is configured by another of the second winding portions. One end of the first winding portion is connected to a corresponding one of the second winding portions. The other end is connected to the corresponding another said second winding part;

   In the first winding portion, the i-th slot and the r-th layer are the starting end of the first winding portion, and the (i-11) slot r-layer is the end of the first winding portion, and the first A winding part includes a first span segment, a second span segment, and a third span segment. The i-th slot from the r-th layer to the i-th slot a-layer is the first jump segment. In the span, the winding reciprocates between the i-th slot and the (i-6) -th slot and is wound from the radially outer side to the radially inner side of the stator core; from the i-th slot to the a-th layer i-5) slot a layer is the second span; from the (i-5) slot a to the (i-11) slot r is the third span. In the three-span jump, the winding reciprocates between the (i-5) th slot and the (i-11) th slot and is wound from the radially inner side to the radially outer side of the stator core;

   In the second winding portion, the n-th slot and the r-th layer are the starting end of the second winding portion, and the (n-12) slot r-layer is the end of the second winding portion, and the first The second winding part includes a fourth span and a fifth span. The fourth span is from the nth slot to the rth layer to the (n-6) th slot to the ath layer. In the segment, the winding reciprocates between the nth slot and the (n-6) th slot and is wound from the radial outer side to the radial inner side of the stator core; from the (n-6) th slot a layer to The (n-12) th slot, the r-th layer is the fifth span, and in the fifth span, the winding reciprocates between the (n-6) th slot and the (n-12) th slot. And winding from the radially inner side to the radially outer side of the stator core,

   The starting slot of the winding of the first route is the stator slot opposite to the circumference of the ith slot. The outermost layer of the starting slot of the winding of the first route is connected to the first lead-out wire, and the winding of the first route is There are six stator slots between the termination slot of the first winding and the starting slot of the first winding, and the second outer layer of the ending slot of the first winding is connected to the first star point line;

   The second winding of each phase of the stator winding includes a third winding portion and a plurality of fourth winding portions. A starting section of the second winding is configured by one of the fourth winding portions, and the first The terminating section of the two-way winding is constructed by one of the fourth winding portions; one end of the third winding portion is connected to a corresponding one of the fourth winding portions, and the other end of the third winding portion is connected to the corresponding one. Another said fourth winding part is connected;

   In the third winding part, the i'th slot and the r-th layer are the starting end of the third winding part, and the (i'-13) slot r-th layer is the end of the third winding part, so The third winding part includes a sixth span segment, a seventh span segment, and an eighth span segment. The sixth span segment is from the i'th slot to the rth layer to the i'th slot to the ath layer. In the sixth span, the winding reciprocates between the i'th slot and the (i'-6) th slot and is wound from the radially outer side to the radially inner side of the stator core; from the i'th Slot a to (i'-7) slot a is the seventh span; from (i'-7) slot a to r (i'-13) slot r is In the eighth span, in the eighth span, the winding reciprocates between the (i'-7) th slot and the (i'-13) th slot and passes from the diameter of the stator core. Winding inward to radially outer;

   In the fourth winding part, the n'th slot and the r-th layer are the starting end of the fourth winding part, and the (n'-12) slot r-th layer is the end of the fourth winding part, so The fourth winding part includes a ninth span and a tenth span, and the nth slot from the r'th layer to the (n'-6) th slot a layer is the ninth jump segment. In the ninth span, the winding reciprocates between the n'th slot and the (n'-6) th slot and is wound from the radially outer side to the radially inner side of the stator core; from the (n'- 6) The slot a layer to the (n'-12) slot r layer are the tenth span, and in the tenth span, the winding is between the (n'-6) th slot and the first (n'-12) The windings are reciprocated between the slots from the radially inner side to the radially outer side of the stator core, wherein the starting slot of the second winding is the stator with the circumference of the i'th slot opposite to the stator. Slot, the outermost layer of the starting slot of the second winding is connected to the second lead-out wire, and there are four stators between the ending slot of the second winding and the starting slot of the second winding The second outer layer of the termination groove of the second winding winding is connected to the second star point line.
2. The stator assembly according to claim 1, wherein i = i'-1; n = n'-1.
3. The stator assembly according to claim 1 or 2, wherein the stator winding includes a plurality of conductor segments, and each of the conductor segments includes a bent portion and a first slot respectively connected to the bent portion. A part and a second in-slot part, the first in-slot part and the second in-slot part of the plurality of conductor segments located on adjacent layers are welded connected at a welding end.
4. The stator assembly according to claim 3, wherein the conductor segment comprises a first type conductor segment, a second type conductor segment, and a third type conductor segment, and the first slot of the first type conductor segment The pitch between the inner part and the second slot inner part is (y-1) the stator slots, the first slot inner part and the second slot inner part of the second type of conductor segment The pitch between them is y of the stator slots, and the pitch between the inner portion of the first slot and the second slot of the third type of conductor segment is (y + 1) Stator slots, where y is an integer and y = z / 2p.
5. The stator assembly according to claim 4, wherein the first type of conductor segment is located in the second span segment, and the first slot portion of the first type of conductor segment is located in one of the one The innermost layer of the stator slot, the inner portion of the second slot of the first type of conductor segment is located at the innermost layer of the other stator slot.
6. The stator assembly according to claim 4, wherein the second type of conductor segment is located within the first and third span segments, the fourth and fourth segment segments, and the first and second segment segments. Within the five-span, the sixth and eighth spans, and the ninth and tenth spans;

   The second type of conductor segment includes conductor segments of the same layer and conductor segments of different layers, and the inner portion of the first slot of the conductor segments of the same layer is located at the outermost layer of one of the stator slots, and the second The inner portion of the slot is located at the outermost layer of another of the stator slots, or the first inner portion of the conductor segment of the same layer is located at the innermost layer of one of the stator slots, and the inner portion of the second slot is located The innermost layer of another stator slot; the inner portion of the first slot of the conductor segment of the different layer is located at the middle slot layer of one of the stator slots, and the inner portion of the second slot is located at the other stator The middle groove layer of the groove, and the different layers span.
7. The stator assembly according to claim 4, wherein the third type of conductor segment is located in the seventh span segment, and the first slot portion of the third type of conductor segment is located in one of the stators. The innermost layer of the slot, and the inner portion of the second slot of the third type of conductor segment is located at the innermost layer of the other stator slot.
8. A motor, comprising a stator assembly according to any one of claims 1-7.
9. A stator assembly suitable for a z-slot 2p-pole and m-phase motor. The number of slots per pole and phase is q = z / m / (2p), the number of parallel branches is a, and a≤q. The stator assembly includes a stator core and a stator winding. The stator core has 48 stator slots. A plurality of the stator slots are distributed in a circumferential direction of the stator core. In the direction, the plurality of stator slots are respectively the first slot, the second slot, ..., and the 48th slot. Each of the stator slots has 6 slot layers, and the 6 slot layers are separated from the stator iron. The directions from the radially inner side to the outer side of the core are layer a, layer b, ..., layer f, respectively;

   It is characterized in that the first winding of each phase of the stator winding includes a first winding portion and a plurality of second winding portions, and a starting section of the first winding is configured by one of the second winding portions. The termination section of the first winding is configured by one of the second winding portions, one end of the first winding portion is connected to a corresponding one of the second winding portions, and the other of the first winding portion is One end is connected to the corresponding another said second winding part;

   In the first winding part, the 25th slot and the f-th layer are the starting end of the first winding part, and the 14th slot and the f-th layer are the end ends of the first winding part, and the first winding part includes The first span, the second span, and the third span, from the 25th slot, the f-th layer to the 25th slot, the a-th layer are the first jump sections, within the first jump section , The winding reciprocates between the 25th slot and the 19th slot and is wound from the radial outer side to the radial inner side of the stator core; from the 25th slot a layer to the 20th slot a layer is the first Two-span jump; from the 20th slot a layer to the 14th slot f layer is the third jump section, in which the winding reciprocates between the 20th slot and the 14th slot and Winding from the radially inner side to the radially outer side of the stator core;

   In the second winding part, the first slot and the f-th layer are the starting end of the second winding part, the 37th slot and the f-th layer are the end ends of the second winding part, and the second winding part includes The fourth and fifth spans are from the 1st slot, the f-th layer to the 43th slot, and the a-th layer are the fourth jump section. In the fourth jump section, the winding is at the first step. Slot and 43rd slot are reciprocated and wound from the radial outer side to the radial inner side of the stator core; from the 43rd slot a layer to the 37th slot f layer is the fifth span segment, in In the fifth span, the winding reciprocates between the 43rd slot and the 37th slot and is wound from the radially inner side to the radially outer side of the stator core;

   The starting slot of the winding of the first route is the stator slot opposite to the circumference of the 25th slot. The outermost layer of the starting slot of the winding of the first route is connected to the first lead-out wire, and the winding of the first route is There are six stator slots between the termination slot of the first winding and the starting slot of the first winding, and the second outer layer of the ending slot of the first winding is connected to the first star point line;

   The second winding of each phase of the stator winding includes a third winding portion and a plurality of fourth winding portions. A starting section of the second winding is configured by one of the fourth winding portions, and the first The terminating section of the two-way winding is constructed by one of the fourth winding portions; one end of the third winding portion is connected to a corresponding one of the fourth winding portions, and the other end of the third winding portion is connected to the corresponding one. Another said fourth winding part is connected;

   In the third winding portion, the 26th slot and the f-th layer are the starting end of the third winding portion, and the 13th slot and the f-th layer are the terminating end of the third winding portion. The third winding portion includes The sixth, seventh, and eighth spans are from the 26th slot, the f-th layer to the 26th slot, the a-th layer, as the sixth jump section, and within the sixth jump section , The winding reciprocates between the 26th slot and the 20th slot and is wound from the radial outer side to the radial inner side of the stator core; from the 26th slot a layer to the 19th slot the a layer is the first Seven-span jump; from slot 19th layer a to slot 13th layer f is the eighth step, in which the winding is between slot 19 and slot 13 Reciprocating and winding from a radially inner side to a radially outer side of the stator core;

   In the fourth winding portion, the second slot f layer is the starting end of the fourth winding portion, the 38th slot f layer is the ending end of the fourth winding portion, and the fourth winding portion includes The ninth and tenth jumps are from the second slot, the f-th layer to the 44th slot, and the a-th layer are the ninth jump. In the ninth jump, the winding is at the second The winding is reciprocated between the slot and the 44th slot and is wound from the radial outer side to the radial inner side of the stator core; from the 44th slot, the a-th layer to the 38th slot, the f-th layer is the tenth span, In the tenth span, the winding reciprocates between the 44th slot and the 38th slot and is wound from the radially inner side to the radially outer side of the stator core;

   The starting slot of the winding of the second route is the stator slot opposite to the circumference of the second slot. The outermost layer of the starting slot of the winding of the second route is connected to the second lead-out wire, and the winding of the second route is There are four stator slots between the termination slot of the second winding and the starting slot of the second winding, and the second outer layer of the ending slot of the second winding is connected to the second star point line.

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