WO2025194331A1 - 电机定子及电机 - Google Patents

电机定子及电机

Info

Publication number
WO2025194331A1
WO2025194331A1 PCT/CN2024/082379 CN2024082379W WO2025194331A1 WO 2025194331 A1 WO2025194331 A1 WO 2025194331A1 CN 2024082379 W CN2024082379 W CN 2024082379W WO 2025194331 A1 WO2025194331 A1 WO 2025194331A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor stator
section
conductor
busbar
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/082379
Other languages
English (en)
French (fr)
Inventor
刘磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202480070030.1A priority Critical patent/CN122207188A/zh
Priority to PCT/CN2024/082379 priority patent/WO2025194331A1/zh
Publication of WO2025194331A1 publication Critical patent/WO2025194331A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the present application relates to the structure of windings and busbars of a motor stator, and more particularly to a motor stator and a motor including the motor stator.
  • an electric motor In pure electric vehicles or hybrid electric vehicles, an electric motor is usually used as a power source to drive the vehicle.
  • the winding can be electrically connected to the power supply through a busbar, thereby realizing a desired circuit topology (such as a triangle topology or a Y-shaped topology).
  • the motor stator can include a power busbar and a neutral busbar, and the different conductor connection parts of the winding are welded together with the power busbar or the neutral busbar to achieve electrical connection.
  • the busbar structure of the existing motor stator makes the axial length of the motor stator longer, which has a relatively adverse effect on the installation and layout of the drive structure in which two motors are arranged side by side in the axial direction.
  • the three-phase busbars of the busbar have a partially radially stacked structure.
  • the winding can realize an electrical circuit with a predetermined topological structure.
  • the winding realizes an electrical circuit with a symmetrical magnetic circuit layout through the busbars arranged axially outside the ends of the winding.
  • the winding realizes an electrical circuit with a predetermined topological structure through the three-phase lead busbars and the neutral busbar arranged axially outside the welding ends of the winding.
  • the wire connection portion of the winding extends linearly from the protruding portion toward the axial outside for a certain length
  • the electrical connection portion of the busbar and the wire connection portion of the winding are overlapped and welded in the axial direction to achieve electrical connection
  • the entire structure of the busbar is located at the protruding portion of the winding.
  • the busbar structure needs to be spaced apart from the axially outer end of the protruding portion of the winding, thereby further increasing the axial length of the motor stator.
  • This application is made in view of the above-mentioned state of the prior art.
  • One object of this application is to provide a motor stator that can reduce the space occupied by the busbar structure and reduce the overall axial size.
  • Another object of this application is to provide a motor including the above-mentioned motor stator.
  • the present application provides a motor stator as follows, comprising:
  • a winding mounted on the core and forming an electrical circuit including one or more branches, the winding including a protruding portion extending axially outward from the core, the protruding portion having a plurality of connecting portions formed by connecting different conductors to each other, a portion of the plurality of connecting portions serving as first conductor connecting portions, the branches corresponding to the plurality of first conductor connecting portions, and the plurality of first conductor connecting portions being spaced apart from each other; and
  • each of the power busbars is connected to the first conductor connection portion for the same phase power supply of all the branches to achieve electrical connection, the axial outer end surfaces of all the power busbars are flush with each other, and a partial structure of at least one power busbar is positioned radially outside the protruding portion and overlaps with the protruding portion in the axial direction.
  • the power bus includes a first electrical connection portion and a first common section fixed to each other, the first electrical connection portion is connected to the corresponding first conductor connection portion, and all the first electrical connection portions of the same power bus are connected to the first common section.
  • the first common section includes a first circumferential connecting section extending along the circumference of the motor stator, and at least one of the first common sections of at least one of the power bus bars is connected to the first common section.
  • the first circumferential connecting segment of the segments is positioned radially outside the protruding portion and is arranged to overlap with the protruding portion in the axial direction.
  • the first common section also includes a first intermediate connecting section, the first electrical connection portion is connected to the corresponding first circumferential connecting section via the first intermediate connecting section, and different first circumferential connecting sections of the same first common section are connected via the first intermediate connecting section.
  • another part of the plurality of connection portions is used as a second conductor connection portion, the branch corresponds to a plurality of the second conductor connection portions, and the plurality of the second conductor connection portions are spaced apart from each other and from the first conductor connection portion.
  • the motor stator also includes a neutral bus, which is connected to all the second conductor connection parts to achieve electrical connection.
  • the axial outer end surface of the neutral bus is flush with the axial outer end surface of the power bus.
  • Part of the structure of the neutral bus is positioned radially outside the protruding part and overlaps with the protruding part in the axial direction.
  • the neutral bus includes a second electrical connection part and a second common section fixed to each other, the second electrical connection part is connected to the corresponding second conductor connection part, and all the second electrical connection parts are connected to the second common section.
  • the second common segment includes a second circumferential connecting segment extending along the circumference of the motor stator, and at least one of the second circumferential connecting segments is positioned radially outside the protruding portion and overlaps with the protruding portion in the axial direction.
  • the second common section further includes a second intermediate connecting section, the second electrical connection portion is connected to the corresponding second circumferential connecting section via the second intermediate connecting section, and different second circumferential connecting sections are connected via the second intermediate connecting section.
  • the axially outermost portion of the power busbar and the axially outermost portion of the neutral busbar are formed into a flat structure in the axial direction, and the An axially outermost portion of the power busbar and an axially outermost portion of the neutral busbar are spaced apart from an axially outer end portion of the protruding portion.
  • the axial outer end surfaces of the multiple connecting parts are flush with each other.
  • the present application also provides the following motor, comprising the motor stator described in any one of the above technical solutions.
  • the present application provides a motor stator and a motor.
  • the motor stator of the present application includes an iron core, a winding and a plurality of power buses.
  • the winding is installed on the iron core, and the winding forms an electrical circuit including one or more branches.
  • the winding includes a protruding portion extending axially outward from the iron core, and the axially outer end of the winding has a plurality of connection portions formed by different conductors connected to each other.
  • a part of the multiple connection portions is also used as a first conductor connection portion, each branch corresponds to a plurality of first conductor connection portions, and the plurality of first conductor connection portions are spaced apart from each other.
  • a partial structure of at least one power bus of the winding is positioned radially outside the protruding portion of the winding, and is arranged to overlap with the protruding portion in the axial direction.
  • the winding uses the connection portion of the protruding portion as the conductor connection portion connected to the power bus, no additional conductor connection portion extending axially outward from the protruding portion is provided, thereby avoiding the situation where the axial dimension of the motor stator becomes larger due to the provision of the additional conductor connection portion, that is, the axial dimension of the motor stator can be reduced.
  • part of the structure of the busbar is provided radially outside the protruding portion of the winding, rather than all of it being provided axially outside the protruding portion, the axial dimension occupied by the busbar structure can be reduced.
  • part of the structure of the busbar is provided radially outside the protruding portion of the winding, when the busbar structure is relatively complex and different parts need to be arranged overlappingly with each other, they do not need to be arranged overlappingly axially outside the protruding portion of the winding, but can be arranged overlappingly radially outside the protruding portion, thereby not increasing the axial space occupied by the busbar structure, thereby making the axial dimension of the motor stator smaller.
  • FIG1 is a perspective schematic diagram showing a stator of a motor according to an embodiment of the present application.
  • FIG. 2 is another schematic perspective view showing the stator of the motor in FIG. 1 .
  • FIG. 3 is a schematic top view of the motor stator in FIG. 1 .
  • FIG. 4 is an enlarged schematic diagram showing a partial structure of the motor stator in FIG. 1 .
  • FIG. 5 is an enlarged schematic diagram showing another partial structure of the motor stator in FIG. 1 .
  • axial, radial and circumferential refer to the axial, radial and circumferential directions of the motor stator (iron core), respectively.
  • “Axially outer” refers to the side axially away from the center plane of the axial dimension of the motor stator iron core
  • “axially inner” refers to the side axially close to the center plane of the axial dimension of the motor stator iron core
  • “radially outer” refers to the side radially away from the central axis of the motor stator
  • radially inner refers to the side radially close to the central axis of the motor stator. That side of the line.
  • each part of the busbar can be formed into a flat plate shape or a strip shape with a rectangular cross-section.
  • being flat in the axial direction means that the axial size of each part of the busbar is small, while the radial size and the circumferential size can be set to be large.
  • two parts overlapping in the axial direction means that the two parts at least partially overlap in the axial direction, that is, the two parts are formed into a structure that blocks each other when viewed along a radial direction perpendicular to the axial direction.
  • the motor stator includes an assembled iron core 1, a winding 2, and multiple busbars (a power busbar 3 and a neutral busbar 4).
  • the winding 2 is fixedly mounted to the iron core 1, and the multiple busbars 3 and 4 are fixedly mounted to the winding 2 and connected to the winding 2 to achieve electrical connection.
  • the core 1 can be formed by stacking silicon steel sheets. As shown in Figures 1 to 5, the core 1 is formed with multiple slots spaced evenly along the circumferential direction C.
  • the conductors of the winding 2 e.g., flat wire
  • the conductors of the winding 2 also extend axially outward from both axial ends of the core 1, resulting in the winding 2 having protruding portions 2e located on both axial sides of the core 1.
  • the winding 2 is formed by connecting multiple hairpins, and the ends of different hairpins can be welded together.
  • one protruding portion 2e of the winding 2 has multiple connecting portions 2c formed by connecting different hairpins (i.e., different conductors), and the axially outer end surfaces of all the connecting portions 2c are flush with each other (including approximately flush).
  • Some of these connecting portions 2c serve as first conductor connecting portions 2c1 (in this embodiment, there are six first conductor connecting portions 2c1), and others serve as second conductor connecting portions 2c2 (in this embodiment, there are six second conductor connecting portions 2c2).
  • the winding 2 has a first conductor connection portion 2c1 and a second conductor connection portion 2c2 for connecting to a plurality of busbars 3 and 4.
  • the first conductor connection portion 2c1 and the second conductor connection portion 2c2 belong to the extended portion.
  • the output portion 2e is part of the structure itself and serves as the connection point for the winding 2 to connect to the busbars 3 and 4 for electrical connection.
  • These conductor connecting portions 2c1 and 2c2 are relatively concentrated and spaced apart from each other within a predetermined area in the circumferential direction C, thereby facilitating the installation of the busbars 3 and 4.
  • the three radially inner first conductor connecting portions 2c1 are evenly spaced apart from each other in the circumferential direction C
  • the three radially outer first conductor connecting portions 2c1 are evenly spaced apart from each other in the circumferential direction C.
  • Different first conductor connecting portions 2c1 are located at different circumferential positions, and each first conductor connecting portion 2c1 may have the same axial dimension.
  • the three radially inner second conductor connecting portions 2c2 are evenly spaced apart from each other in the circumferential direction C, and the three radially outer second conductor connecting portions 2c2 are evenly spaced apart from each other in the circumferential direction C.
  • Different second conductor connecting portions 2c2 are located at different circumferential positions.
  • the winding 2 forms an electrical circuit with two parallel branches, and each branch is formed into a Y-shaped topology structure using busbars 3 and 4. The two branches correspond to different first conductor connection parts 2c1 and second conductor connection parts 2c2 respectively.
  • each busbar 3, 4 can be made by secondary molding, so that each busbar 3, 4 can have a core made of a conductive material (such as a metal material) and an insulating portion wrapped around the outside of the core. It can be understood that the core of the busbar 3, 4 is exposed at the connection portion where it is necessary to achieve electrical connection with the first conductor connection portion 2c1 and the second conductor.
  • the multiple busbars 3, 4 include three power busbars 3 and one neutral busbar 4.
  • the three power busbars 3 can be used to electrically connect to the three-phase power supply respectively, and each power busbar 3 is electrically connected to the first conductor connection portion 2c1 of the two branches for the same phase power supply.
  • the neutral busbar 4 can be used to electrically connect to the ground wire, and the neutral busbar 4 is electrically connected to all the second conductor connection portions 2c2.
  • the power bus 3 includes a first power bus 3a, a second power bus 3b and a third power bus 3c arranged separately from each other, wherein after being installed in place, the first power bus 3a can correspond to U of the three-phase AC power supply, the second power bus 3b can correspond to V of the three-phase AC power supply, and the third power bus 3c can correspond to W of the three-phase AC power supply.
  • the power bus 3 (first power bus 3a) includes a first electrical connection portion 31, a first common section 32, and a first pin portion 33, which are integrally formed.
  • the two first electrical connection portions 31 can be electrically connected to the corresponding first conductor connection portions 2c1, for example, by welding.
  • One first electrical connection portion 31 is connected to the radially outer first conductor connection portion 2c1, and the other first electrical connection portion 31 is connected to the radially inner first conductor connection portion 2c1.
  • the two first electrical connection portions 31 are connected to both ends of the first common section 32.
  • the first common section 32 includes two first circumferential connection segments 321 (a radially inner first circumferential connection segment 321 and a radially outer first circumferential connection segment 321) and three first intermediate connection segments 322.
  • the first circumferential connection segments 321 extend along the circumferential direction C (including extending substantially along the circumferential direction C).
  • the radially inner first electrical connection portion 31 is connected to the radially inner first circumferential connection segment 321 via a first intermediate connection segment 322 extending along the radial direction R (including substantially along the radial direction R).
  • the radially inner first circumferential connection segment 321 is connected to the radially outer first circumferential connection segment 321 via another first intermediate connection segment 322 extending along the radial direction R (including substantially along the radial direction R).
  • the radially outer first circumferential connection segment 321 is connected to the radially outer first electrical connection portion 31 via yet another first intermediate connection segment 322 extending along the radial direction R (including substantially along the radial direction R).
  • the first pin portion 33 is disposed on the radially outer first circumferential connection segment 321 and extends radially outward.
  • the second power bus 3b and the third power bus 3c may have the same or similar structural features as the first power bus 3a, but the number, specific size and specific bending shape of each structural feature may be different.
  • the second power bus 3b and the third power bus 3c may have the same number of first circumferential connecting segments 321, but their radial positions and extension lengths may be different.
  • the second power bus 3b and the third power bus 3c may have different number, extension direction and extension length of the first intermediate connecting segments 322.
  • the axially outermost portions of all power busbars 3 are formed to be flat in the axial direction A (e.g., the axial thickness may be 2.5 mm). In other words, the axially outermost portions of all power busbars 3 are arranged in the same layer. Furthermore, the axially outer end surfaces of all power busbars 3 are flush with one another (rather than being staggered in the axial direction A), and when viewed along the axial direction A, the axially outermost portions of all power busbars 3 are completely staggered, thereby further reducing the axial dimension occupied by the busbar structure.
  • the neutral busbar 4 is electrically connected to all second conductor connection portions 2c2.
  • the neutral busbar 4 includes a second electrical connection portion 41, a second common section 42, and a second pin portion 43, which are integrally formed.
  • the three second electrical connection portions 41 are electrically connected to the three second conductor connection portions 2c2 located radially outward, for example, by welding.
  • the three second electrical connection portions 41 are electrically connected to the three second conductor connection portions 2c2 located radially inward, for example, by welding. Different second electrical connection portions 41 are connected to different second conductor connection portions 2c2.
  • the second common section 42 includes two second circumferential connection segments 421 (a second circumferential connection segment 421 located radially inward and a second circumferential connection segment 421 located radially outward) and a plurality of second intermediate connection segments 422.
  • the second circumferential connection segments 421 extend along the circumferential direction C (including extending substantially along the circumferential direction C).
  • the second electrical connection portion 41 located on the radial inner side is connected to the second circumferential connection segment 421 located on the radial inner side via a second intermediate connection segment 422 extending along the radial direction R (including substantially along the radial direction R), and the second circumferential connection segment 421 located on the radial inner side is connected to the second circumferential connection segment 421 located on the radial outer side via a second intermediate connection segment 422 extending along the radial direction R (including substantially along the radial direction R) and then bending toward the axial inner side to extend along the axial direction A.
  • the intermediate connecting section 422 is connected, and the second circumferential connecting section 421 located on the radial outside is connected to the second electrical connecting portion 41 located on the radial outside via the second intermediate connecting section 422 extending along the radial direction R (including approximately along the radial direction R). Furthermore, the second pin portion 43 is arranged on the second circumferential connecting section 421 located on the radial outside and extends toward the radial outside.
  • the second pin portion 43 and the first pin portions 41 of the three power buses 3 are arranged more densely in an area with a smaller circumferential range in a manner spaced apart from each other, so as to facilitate connection with an external power supply.
  • the second intermediate connecting segment 422 of the neutral busbar 4 which connects the two second circumferential connecting segments 421, extends along the radial direction R (including substantially along the radial direction R) and then bends axially inward to extend along the axial direction A
  • one of the second circumferential connecting segments 421 of the neutral busbar 4 is positioned radially outward of the protruding portion 2e and overlaps with the protruding portion 2e in the axial direction A, thereby further reducing the axial dimension of the busbar structure.
  • the axially outermost portion of the neutral busbar 4 is flattened in the axial direction A (e.g., having an axial thickness of 2.5 mm).
  • the axially outer end surface of the neutral busbar 4 is flush with the axially outer end surfaces of all the power busbars 3, and when viewed along the axial direction A, the axially outermost portions of the neutral busbar 4 and all the power busbars 3 are completely offset from each other, further reducing the axial dimension of the busbar structure.
  • the axially outermost parts of the power bus 3 and the axially outermost parts of the neutral bus 4 are spaced apart from the axially outer ends of the protruding parts 2e (for example, the spacing distance can be 6 mm).
  • the first circumferential connection segment 321 of the third power busbar 3c located radially outside the protruding portion 2e and the second circumferential connection segment 421 of the neutral busbar 4 located radially outside the protruding portion 2e can be flat in the radial direction R, staggered in the axial direction A, and overlap in the radial direction R (at least partially overlap when viewed along the axial direction A).
  • the second electrical connection portion 41 connected to the second circumferential connection segment 421 of the neutral busbar 4 located radially outside the protruding portion 2e can extend axially outward from the second intermediate connection segment 422, and the second electrical connection portion 41 connected to the second circumferential connection segment 421 of the neutral busbar 4 located radially inside the protruding portion 2e can extend axially outward.
  • the connecting portion 41 may extend axially inward from the second middle connecting section 422 .
  • the winding 2 uses the connection portion 2c of the extension portion 2e as the conductor connection portion 2c1, 2c2 connected to the power bus 3, no additional conductor connection portion extending axially outward from the extension portion 2e is provided.
  • This avoids the axial increase in the motor stator's size due to the provision of additional conductor connection portions, thereby reducing the axial size of the motor stator (for example, by approximately 7.5 mm).
  • part of the busbar structure is arranged radially outward of the extension portion 2e of the winding 2, rather than entirely therein, the axial size occupied by the busbar structure can be reduced.
  • part of the busbar structure is arranged radially outward of the extension portion 2e of the winding 2
  • the busbar structure is relatively complex and different portions need to be arranged overlappingly, they do not need to be arranged axially outward of the extension portion 2e of the winding 2. Instead, they can be arranged radially outward of the extension portion 2e, thereby avoiding the axial increase in the motor stator's size.
  • This application also provides a motor including the above-described motor stator.
  • the motor may include a housing, a motor stator, and a motor rotor, which are assembled together.
  • the motor stator and motor rotor are mounted within the housing, with the motor rotor located radially inward of the motor stator with an air gap between them. It will be appreciated that in the above-described motor, portions of busbars 3 and 4 are disposed in the space between the protruding portion 2ee of the stator winding 2 and the housing.
  • connection means between the busbar and the first conductor connection portion 2c1 and the second conductor connection portion 2c2 can be welded to achieve a fixed connection to each other to achieve electrical connection.
  • first conductor connection portion 2c1 and the second conductor connection portion 2c2 can be bent to extend along the radial direction R
  • the electrical connection portions 31 and 41 of the busbars 3 and 4 can be bent to extend along the radial direction R. Extending in the radial direction R.
  • the axial dimension of the entire motor stator can be further reduced, and even if the welding length between the busbars 3, 4 and the conductor connecting portions 2c1, 2c2 in the radial direction R is increased to improve the connection strength, the axial dimension of the motor stator will not be increased.
  • the electrical circuit formed by the winding 2 has two parallel branches of a Y-shaped topology structure, but the present application is not limited to this.
  • the electrical circuit formed by the winding 2 may have only one branch of a Y-shaped topology structure, or the electrical circuit formed by the winding 2 may have one or more branches of a triangle topology structure.
  • different numbers of power buses 3 and neutral buses 4 can be set according to the topology of the electrical circuit and the number of phases of the external power supply.
  • the winding 2 of the present application is not limited to being formed by a card-issuing unit, but can be other types of windings.
  • busbars 3 and 4 of the present application have a relatively simple structure while achieving the same function, making manufacturing and assembly relatively simple, thereby reducing corresponding costs and also reducing the weight of the motor stator.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

一种电机定子，包括铁芯(1)、绕组(2)和多个电源汇流排(3)。绕组(2)包括从铁芯(1)朝向轴向外侧伸出的伸出部分(2e)，伸出部分(2e)具有不同导体彼此相连形成的多个连接部(2c)，多个连接部(2c)中的一部分连接部(2c)用作第一导体连接部(2c1)。每个电源汇流排(3)与绕组(2)形成的电气回路的所有支路的用于同一相电源的第一导体连接部(2c1)相连以实现电连接，所有的电源汇流排(3)的轴向外侧端面彼此平齐。至少一个电源汇流排(3)的部分结构被定位在伸出部分(2e)的径向外侧且与伸出部分(2e)在轴向(A)上重叠布置。由此能够减小电机定子的轴向尺寸。还提供了一种包括上述电机定子的电机。

Description

电机定子及电机 技术领域
本申请涉及电机定子的绕组和汇流排的结构，更具体地涉及一种电机定子及包括该电机定子的电机。
背景技术
在纯电动车辆或者混合动力车辆中，通常采用电机作为动力源来驱动车辆行驶。在电机定子中，绕组可以通过汇流排与电源实现电连接，从而实现期望的电路拓扑结构(例如三角形拓扑结构或者Y形拓扑结构)。在典型示例中，电机定子可以包括电源汇流排和中性汇流排，绕组的不同的导体连接部与电源汇流排或中性汇流排焊接在一起实现电连接，但是现有的电机定子的汇流排结构使得电机定子的轴向长度较长，尤其对在轴向上并排布置双电机的驱动结构的安装和布局产生较为不利的影响。
例如，在公布号为CN 115912741 A，名称为“定子组件、电机及电驱系统”的中国发明专利申请中，汇流排的三相母排具有在径向上部分层叠的构造，通过三相母排以及中性母排，绕组能实现具有预定的拓扑结构的电气回路。在公告号为CN 212784949 U，名称为“一种电机定子及电机”的中国实用新型专利中，通过设置在绕组的端部的轴向外侧的汇流排，绕组实现了具有对称磁路布局的电气回路。在公告号为CN 213782983 U，名称为“扁线发卡定子结构及电机”的中国实用新型专利中，通过设置在绕组的焊接端的轴向外侧的三相引出线汇流排和中性线汇流排，绕组实现了具有预定拓扑结构的电气回路。
在以上专利技术所代表的技术方案中，绕组的导线连接部从伸出部分朝向轴向外侧直线状地延伸一定长度，汇流排的电连接部与绕组的导线连接部在轴向上重叠焊接以实现电连接，并且汇流排的全部结构位于绕组的伸出部 分的轴向外侧。此外，为了具有足够的安全距离，汇流排结构与绕组的伸出部分的轴向外侧端之间需要间隔开，由此进一步导致电机定子的轴向长度变大。
发明内容
鉴于上述现有技术的状态而做出本申请。本申请的一个目的在于提供一种电机定子，其能够减小汇流排结构所占用的空间并且减小整体的轴向尺寸。本申请的另一个目的在于提供一种包括上述电机定子的电机。
为了实现上述目的，本申请采用如下的技术方案。
本申请提供了一种如下的电机定子，包括：
铁芯；
绕组，其安装于所述铁芯且形成包括一个或多个支路的电气回路，所述绕组包括从所述铁芯朝向轴向外侧伸出的伸出部分，所述伸出部分具有不同导体彼此相连形成的多个连接部，所述多个连接部中的一部分连接部用作第一导体连接部，所述支路对应多个所述第一导体连接部并且多个所述第一导体连接部彼此间隔开；以及
多个电源汇流排，每个所述电源汇流排与所有的所述支路的用于同一相电源的所述第一导体连接部相连以实现电连接，所有的所述电源汇流排的轴向外侧端面彼此平齐，至少一个所述电源汇流排的部分结构被定位在所述伸出部分的径向外侧且与所述伸出部分在所述轴向上重叠布置。
在一种可选的方案中，所述电源汇流排包括彼此固定的第一电连接部和第一公共段，所述第一电连接部与对应的所述第一导体连接部相连，同一所述电源汇流排的所有的所述第一电连接部与所述第一公共段相连。
在另一种可选的方案中，所述第一公共段包括沿着所述电机定子的周向延伸的第一周向连接段，至少一个所述电源汇流排的至少一个所述第一公共 段的所述第一周向连接段被定位在所述伸出部分的径向外侧且与所述伸出部分在所述轴向上重叠布置。
在另一种可选的方案中，所述第一公共段还包括第一中间连接段，所述第一电连接部经由所述第一中间连接段与对应的所述第一周向连接段相连，同一所述第一公共段的不同的所述第一周向连接段经由所述第一中间连接段相连。
在另一种可选的方案中，所述多个连接部中的另一部分连接部用作第二导体连接部，所述支路对应多个所述第二导体连接部，并且多个所述第二导体连接部彼此间隔开且与所述第一导体连接部间隔开，
所述电机定子还包括一个中性汇流排，所述中性汇流排与所有的所述第二导体连接部相连以实现电连接，所述中性汇流排的轴向外侧端面与所述电源汇流排的轴向外侧端面彼此平齐，所述中性汇流排的部分结构被定位在所述伸出部分的径向外侧且与所述伸出部分在所述轴向上重叠布置，所述中性汇流排包括彼此固定的第二电连接部和第二公共段，所述第二电连接部与对应的所述第二导体连接部相连，所有的所述第二电连接部与所述第二公共段相连。
在另一种可选的方案中，所述第二公共段包括沿着所述电机定子的周向延伸的第二周向连接段，至少一个所述第二周向连接段被定位在所述伸出部分的径向外侧且与所述伸出部分在所述轴向上重叠布置。
在另一种可选的方案中，所述第二公共段还包括第二中间连接段，所述第二电连接部经由所述第二中间连接段与对应的所述第二周向连接段相连，不同的所述第二周向连接段经由所述第二中间连接段相连。
在另一种可选的方案中，所述电源汇流排的轴向最外侧的部分和所述中性汇流排的轴向最外侧的部分被形成为在所述轴向上扁平的构造，并且所述 电源汇流排的轴向最外侧的部分和所述中性汇流排的轴向最外侧的部分与所述伸出部分的轴向外侧端部彼此间隔开。
在另一种可选的方案中，所述多个连接部的轴向外侧端面彼此平齐。
本申请还提供了一种如下的电机，包括以上技术方案中任意一项技术方案所述的电机定子。
通过采用上述技术方案，本申请提供了一种电机定子及电机。在本申请的电机定子中，包括铁芯、绕组和多个电源汇流排。绕组安装于铁芯，并且绕组形成包括一个或多个支路的电气回路。绕组包括从铁芯朝向轴向外侧伸出的伸出部分，绕组的轴向外侧端部具有不同导体彼此相连形成的多个连接部。进一步地，多个连接部中的一部分连接部还用作第一导体连接部，每个支路对应多个第一导体连接部并且多个第一导体连接部彼此间隔开。此外，绕组的至少一个电源汇流排的部分结构被定位在绕组的伸出部分的径向外侧，并且与伸出部分在轴向上重叠布置。
这样，一方面，由于绕组以伸出部分的连接部作为与电源汇流排相连导体连接部，不再设置从伸出部分朝向轴向外侧延伸的附加的导体连接部，因而能够避免由于设置附加的导体连接部所导致的电机定子的轴向尺寸变大的情况，也就是说能够减小电机定子的轴向尺寸。另一方面，由于汇流排的部分结构设置在绕组的伸出部分的径向外侧，而非全部设置在伸出部分轴向外侧，因而能够减小汇流排结构所占用的轴向尺寸。而且，由于汇流排的部分结构设置在绕组的伸出部分的径向外侧，因而在汇流排结构较为复杂且不同部分需要彼此重叠布置的情况下，无需在绕组的伸出部分的轴向外侧重叠布置，而可以在伸出部分的径向外侧重叠布置，由此不会增大汇流排结构所占用的轴向空间，进而使得电机定子的轴向尺寸较小。
附图说明
图1是示出了根据本申请的一实施例的电机定子的立体示意图。
图2是示出了图1中的电机定子的另一立体示意图。
图3是示出了图1中的电机定子的俯视示意图。
图4是示出了图1中的电机定子的局部结构的放大示意图。
图5是示出了图1中的电机定子的另一局部结构的放大示意图。
附图标记说明
1铁芯；
2绕组；2e伸出部分；2c连接部；2c1第一导体连接部；2c2第二导
体连接部；
3电源汇流排；3a第一电源汇流排；3b第二电源汇流排；3c第三电
源汇流排；31第一电连接部；32第一公共段；321第一周向连接段；322第一中间连接段；33第一引脚部；
4中性汇流排；41第二电连接部；42第二公共段；421第二周向连接
段；422第二中间连接段；43第二引脚部；
A轴向；R径向；C周向。
具体实施方式
以下将结合说明书附图详细说明本申请的具体实施例。应当理解，这些具体的说明仅用于示教本领域技术人员如何实施本申请，而不用于穷举本申请的所有可行的方式，也不用于限制本申请的范围。
在本申请中，如无特殊说明，“轴向”、“径向”和“周向”分别是指电机定子(铁芯)的轴向、径向和周向。“轴向外侧”是指沿着轴向远离电机定子的铁芯的轴向尺寸中心面的那侧，“轴向内侧”是指沿着轴向接近电机定子的铁芯的轴向尺寸中心面的那侧，“径向外侧”是指沿着径向远离电机定子的中心轴线的那侧，“径向内侧”是指沿着径向接近电机定子的中心轴 线的那侧。
在本申请中，汇流排的各部分可以形成为横截面形状为长方形的平板形状或条形形状。此外，在具有上述结构的情况下，在轴向上扁平是指汇流排的各部分的轴向尺寸较小，而径向尺寸和周向尺寸可以被设置成较大。
在本申请中，两部分在轴向上重叠是指这两部分在轴向上至少部分地重叠，也就是说沿着与轴向垂直的径向观察时这两部分形成为彼此遮挡的构造。
以下结合说明书附图说明根据本申请的一实施例的电机定子。
如图1和图5所示，电机定子包括组装在一起的铁芯1、绕组2和多个汇流排(电源汇流排3和中性汇流排4)。绕组2固定安装于铁芯1，多个汇流排3、4固定安装于绕组2且与绕组2相连以实现电连接。
在本实施例中，铁芯1可以通过硅钢片层叠而成。如图1至图5所示，铁芯1形成有沿着周向C间隔开地均匀分布的多个槽。绕组2的导体(例如扁线)分别插入对应的槽中且在每个槽中在径向R上分层布置，绕组2的导体还从铁芯1的轴向两端朝向轴向外侧伸出，由此绕组2具有位于铁芯1的轴向两侧的伸出部分2e。进一步地，在本实施例中，绕组2由多个发卡单元相连形成，不同的发卡单元的端部可以通过彼此焊接连接在一起。由此，绕组2的一个伸出部分2e具有不同发卡单元(也就是不同导体)彼此相连形成的多个连接部2c，并且所有的连接部2c的轴向外侧端面彼此平齐(包括大致平齐的情况)。这些连接部2c中的一部分连接部2c用作第一导体连接部2c1(在本实施例中具有六个第一导体连接部2c1)，另一部分连接部2c用作第二导体连接部2c2(在本实施例中具有六个第二导体连接部2c2)。这样，在位于轴向一侧的伸出部分2e中，绕组2具有用于与多个汇流排3、4相连的第一导体连接部2c1和第二导体连接部2c2，第一导体连接部2c1和第二导体连接部2c2属于伸 出部分2e本身结构的一部分，并且用作绕组2与汇流排3、4相连以实现电连接的连接部位。这些导体连接部2c1、2c2在周向C上较为集中地设置在预定区域内且彼此分隔开，从而便于汇流排3、4的安装。在上述预定区域内，三个位于径向内侧的第一导体连接部2c1在周向C上彼此间隔开地均匀布置，三个位于径向外侧的第一导体连接部2c1在周向C上彼此间隔开地均匀布置，不同的第一导体连接部2c1位于不同的周向位置，并且每个第一导体连接部2c1可以具有相同的轴向尺寸。在上述预定区域内，三个位于径向内侧的第二导体连接部2c2在周向C上彼此间隔开地均匀布置，三个位于径向外侧的第二导体连接部2c2在周向C上彼此间隔开地均匀布置，不同的第二导体连接部2c2位于不同的周向位置。此外，在本实施例中，绕组2形成具有两个并联的支路的电气回路，利用汇流排3、4使得每个支路形成为具有Y形拓扑结构，两个支路分别对应不同的第一导体连接部2c1和第二导体连接部2c2。
在本实施例中，每个汇流排3、4可以通过二次成型制成，由此每个汇流排3、4可以具有由导电材料(例如金属材料)制成的芯部以及在芯部外侧包覆的绝缘部。可以理解，在需要与第一导体连接部2c1和第二导体实现电连接的连接部处，汇流排3、4的芯部露出。如图1至图5所示，多个汇流排3、4包括三个电源汇流排3和一个中性汇流排4。三个电源汇流排3可以用于与三相电源分别电连接，每个电源汇流排3与两个支路的用于同一相电源的第一导体连接部2c1电连接。中性汇流排4可以用于与地线电连接，中性汇流排4与所有的第二导体连接部2c2电连接。
如图1至图5所示，电源汇流排3包括彼此分隔开布置的第一电源汇流排3a、第二电源汇流排3b和第三电源汇流排3c，其中在安装到位之后第一电源汇流排3a可以与三相交流电源的U相对应，第二电源汇流排3b可以与三相交流电源的V相对应，第三电源汇流排3c可以与三相交流电源的W相对应。
下面以第一电源汇流排3a为例说明电源汇流排3的结构特征，不同的电源汇流排3的各结构特征对应的尺寸和形状可以适应性调整。如图1至图5所示，电源汇流排3(第一电源汇流排3a)包括形成为一体的第一电连接部31、第一公共段32和第一引脚部33。两个第一电连接部31与对应的第一导体连接部2c1例如可以通过焊接彼此相连以实现电连接，其中一个第一电连接部31与位于径向外侧的一个第一导体连接部2c1相连，另一个第一电连接部31与位于径向内侧的一个第一导体连接部2c1相连。而且，两个第一电连接部31与第一公共段32的两端相连。第一公共段32包括两个第一周向连接段321(位于径向内侧的第一周向连接段321和位于径向外侧的第一周向连接段321)和三个第一中间连接段322，第一周向连接段321沿着周向C延伸(包括大致沿着周向C延伸的情况)。位于径向内侧的第一电连接部31与位于径向内侧的第一周向连接段321经由沿着径向R(包括大致沿着径向R)延伸的一个第一中间连接段322相连，位于径向内侧的第一周向连接段321与位于径向外侧的第一周向连接段321经由沿着径向R(包括大致沿着径向R)延伸的另一个第一中间连接段322相连，位于径向外侧的第一周向连接段321与位于径向外侧的第一电连接部31经由沿着径向R(包括大致沿着径向R)延伸的又一个第一中间连接段322相连。第一引脚部33设置于位于径向外侧的第一周向连接段321且朝向径向外侧伸出。
进一步地，第二电源汇流排3b和第三电源汇流排3c可以具有与第一电源汇流排3a相同或相似的结构特征，但是各结构特征的数量、具体尺寸以及具体弯折形状可以不同。例如，与第一电源汇流排3a相比，第二电源汇流排3b和第三电源汇流排3c的第一周向连接段321的数量相同但是所在的径向位置以及延伸长度可以不同，第二电源汇流排3b和第三电源汇流排3c的第一中间连接段322的数量、延伸方向和延伸长度可以不同。此外，第三电源汇流排 3c的部分第一中间连接段322沿着径向R(包括大致沿着径向R)延伸，而另一部分第一中间连接段322朝向轴向内侧弯折以沿着轴向A延伸。进一步地，第三电源汇流排3c的一个第一周向连接段321被定位在伸出部分2e的径向外侧且与伸出部分2e在轴向A上重叠布置，由此能够避免汇流排结构均布置在伸出部分的轴向外侧端的轴向外侧导致电机定子的轴向尺寸过大的情况。
进一步地，如图4和图5所示，所有的电源汇流排3的轴向最外侧的部分被形成为在轴向A上扁平(例如轴向厚度可以为2.5mm)的构造，也就是说所有电源汇流排3的轴向最外侧的部分同层布置。此外，所有的电源汇流排3的轴向外侧端面彼此平齐(而不是在轴向A上错开布置)，并且沿着轴向A观察时所有电源汇流排3的轴向最外侧的部分彼此完全错开，从而进一步减小汇流排结构所占用的轴向尺寸。
如图1至图5所示，中性汇流排4与所有的第二导体连接部2c2相连以实现电连接，中性汇流排4包括形成为一体的第二电连接部41、第二公共段42和第二引脚部43。三个第二电连接部41与位于径向外侧的三个第二导体连接部2c2例如通过焊接彼此相连以实现电连接，三个第二电连接部41与位于径向内侧的三个第二导体连接部2c2例如通过焊接彼此相连以实现电连接，不同的第二电连接部41与不同的第二导体连接部2c2相连。进一步地，第二公共段42包括两个第二周向连接段421(位于径向内侧的第二周向连接段421和位于径向外侧的第二周向连接段421)和多个第二中间连接段422，第二周向连接段421沿着周向C延伸(包括大致沿着周向C延伸的情况)。位于径向内侧的第二电连接部41与位于径向内侧的第二周向连接段421分别经由沿着径向R(包括大致沿着径向R)延伸的第二中间连接段422相连，位于径向内侧的第二周向连接段421与位于径向外侧的第二周向连接段421经由沿着径向R(包括大致沿着径向R)延伸再朝向轴向内侧弯折以沿着轴向A延伸的第二 中间连接段422相连，位于径向外侧的第二周向连接段421与位于径向外侧的第二电连接部41分别经由沿着径向R(包括大致沿着径向R)延伸的第二中间连接段422相连，进一步地，第二引脚部43设置于位于径向外侧的第二周向连接段421且朝向径向外侧伸出，第二引脚部43与三个电源汇流排3的第一引脚部41以彼此间隔开的方式较为密集地布置在周向范围较小的区域内，以便于与外部电源进行连接。
此外，如图1至图5所示，由于中性汇流排4的用于连接两个第二周向连接段421的第二中间连接段422沿着径向R(包括大致沿着径向R)延伸再朝向轴向内侧弯折以沿着轴向A延伸，使得中性汇流排4的一个第二周向连接段421被定位在伸出部分2e的径向外侧且与伸出部分2e在轴向A上重叠布置，由此能够进一步减小汇流排结构所占用的轴向尺寸。进一步地，中性汇流排4的轴向最外侧的部分被形成为在轴向A上扁平(例如轴向厚度可以为2.5mm)的构造。此外，中性汇流排4的轴向外侧端面和所有的电源汇流排3的轴向外侧端面彼此平齐，并且沿着轴向A观察时中性汇流排4和所有的电源汇流排3的轴向最外侧的部分彼此完全错开，从而进一步减小汇流排结构所占用的轴向尺寸。而且，为了具有安全的用电距离，电源汇流排3的轴向最外侧的部分和中性汇流排4的轴向最外侧的部分与伸出部分2e的轴向外侧端部彼此间隔开(例如间隔开的距离可以为6mm)。
参照图2，第三电源汇流排3c的位于伸出部分2e的径向外侧的第一周向连接段321和中性汇流排4的位于伸出部分2e的径向外侧的第二周向连接段421可以在径向R上扁平，在轴向A上错开，并且在径向R上重叠(沿轴向A观察至少部分重叠)。连接到中性汇流排4的位于伸出部分2e的径向外侧的第二周向连接段421的第二电连接部41可以从第二中间连接段422向轴向外侧延伸，连接到中性汇流排4的位于径向内侧的第二周向连接段421的第二电连 接部41可以从第二中间连接段422向轴向内侧延伸。
通过采用上述结构设置，一方面，由于绕组2以伸出部分2e的连接部2c作为与电源汇流排3相连导体连接部2c1、2c2，不再设置从伸出部分2e朝向轴向外侧延伸的附加的导体连接部，因而能够避免由于设置附加的导体连接部所导致的电机定子的轴向尺寸变大的情况，也就是说能够减小电机定子的轴向尺寸(例如可以减小约7.5mm)。另一方面，由于汇流排的部分结构设置在绕组2的伸出部分2e的径向外侧，而非全部设置在伸出部分2e轴向外侧，因而能够减小汇流排的结构所占用的轴向尺寸。而且，由于汇流排的部分结构设置在绕组2的伸出部分2e的径向外侧，因而在汇流排结构较为复杂且不同部分需要彼此重叠布置的情况下，无需在绕组2的伸出部分2e的轴向外侧重叠布置，而可以在伸出部分2e的径向外侧重叠布置，由此避免电机定子的轴向尺寸变大的情况。
应当理解，上述实施例仅是示例性的，不用于限制本申请。本领域技术人员可以在本申请的教导下对上述实施例做出各种变型和改变，而不脱离本申请的范围。进一步地，进行如下补充说明。
i.本申请还提供了包括上述电机定子的电机，电机可以包括组装在一起的壳体、电机定子以及电机转子。电机定子和电机转子安装在壳体的内部，电机转子位于电机定子的径向内侧且两者之间存在气隙。可以理解，在上述电机中，汇流排3、4的部分结构被设置在电机定子的绕组2的伸出部分2ee与壳体之间的空间。
ii.可以理解，汇流排与第一导体连接部2c1和第二导体连接部2c2之间的连接手段可以采用焊接的方式实现彼此固定相连，来实现电连接。此外，在其他可选的示例中，可以使得第一导体连接部2c1和第二导体连接部2c2被弯折成沿着径向R延伸，相应地使得汇流排3、4的电连接部31、41被弯折成沿 着径向R延伸。由此，能够进一步减小整个电机定子的轴向尺寸，即使为了提高连接强度而增大汇流排3、4与导体连接部2c1、2c2之间在径向R上焊接长度，也不会增大电机定子的轴向尺寸。
iii.在以上的具体实施例中说明了，绕组2所形成的电气回路具有两个并联的Y形拓扑结构的支路，但是本申请不限于此。在其他可选的示例中，在本申请的电机定子S中，绕组2所形成的电气回路可以具有仅一个Y形拓扑结构的支路，或者绕组2所形成的电气回路可以具有一个或多个三角形拓扑结构的支路。由此，可以根据电气回路的拓扑结构以及外接电源的相数设置不同数量的电源汇流排3和中性汇流排4。此外，可以理解，本申请的绕组2不限于采用发卡单元形成，而是可以是其他类型的绕组。
iv.可以理解，为了避免汇流排的各部分结构之间发生干涉，现有的汇流排需要具有较为复杂的构造，因而导致制造和组装困难。但是，本申请的汇流排3、4在实现同样功能的情况下具有相对简单的构造，因而使得制造和组装相对简单，由此降低了相应的成本，而且还能够减小电机定子的重量。

Claims (10)

  1. 一种电机定子，包括：
    铁芯(1)；
    绕组(2)，其安装于所述铁芯(1)且形成包括一个或多个支路的电气回路，所述绕组(2)包括从所述铁芯(1)朝向轴向外侧伸出的伸出部分(2e)，所述伸出部分(2e)具有不同导体彼此相连形成的多个连接部(2c)，所述多个连接部(2c)中的一部分连接部(2c)用作第一导体连接部(2c1)，所述支路对应多个所述第一导体连接部(2c1)并且多个所述第一导体连接部(2c1)彼此间隔开；以及
    多个电源汇流排(3)，每个所述电源汇流排(3)与所有的所述支路的用于同一相电源的所述第一导体连接部(2c1)相连以实现电连接，所有的所述电源汇流排(3)的轴向外侧端面彼此平齐，至少一个所述电源汇流排(3)的部分结构被定位在所述伸出部分(2e)的径向外侧且与所述伸出部分(2e)在所述轴向(A)上重叠布置。
  2. 根据权利要求1所述的电机定子，其特征在于，所述电源汇流排(3)包括彼此固定的第一电连接部(31)和第一公共段(32)，所述第一电连接部(31)与对应的所述第一导体连接部(2c1)相连，同一所述电源汇流排(3)的所有的所述第一电连接部(31)与所述第一公共段(32)相连。
  3. 根据权利要求2所述的电机定子，其特征在于，所述第一公共段(32)包括沿着所述电机定子的周向延伸的第一周向连接段(321)，至少一个所述电源汇流排(3)的至少一个所述第一公共段(32)的所述第一周向连接段(321)被定位在所述伸出部分(2e)的径向外侧且与所述伸出部分(2e)在所述轴向(A)上重叠布置。
  4. 根据权利要求3所述的电机定子，其特征在于，所述第一公共段(32)还包括第一中间连接段(322)，所述第一电连接部(31)经由所述第一中间 连接段(322)与对应的所述第一周向连接段(321)相连，同一所述第一公共段(32)的不同的所述第一周向连接段(321)经由所述第一中间连接段(322)相连。
  5. 根据权利要求1至4中任一项所述的电机定子，其特征在于，
    所述多个连接部(2c)中的另一部分连接部(2c)用作第二导体连接部(2c2)，所述支路对应多个所述第二导体连接部(2c2)，并且多个所述第二导体连接部(2c2)彼此间隔开且与所述第一导体连接部(2c1)间隔开，
    所述电机定子还包括一个中性汇流排(4)，所述中性汇流排(4)与所有的所述第二导体连接部(2c2)相连以实现电连接，所述中性汇流排(4)的轴向外侧端面与所述电源汇流排(3)的轴向外侧端面彼此平齐，所述中性汇流排(4)的部分结构被定位在所述伸出部分(2e)的径向外侧且与所述伸出部分(2e)在所述轴向(A)上重叠布置。
  6. 根据权利要求5所述的电机定子，其特征在于，所述中性汇流排(4)包括彼此固定的第二电连接部(41)和第二公共段(42)，所述第二电连接部(41)与对应的所述第二导体连接部(2c2)相连，所有的所述第二电连接部(41)与所述第二公共段(42)相连，
    所述第二公共段(42)包括沿着所述电机定子的周向延伸的第二周向连接段(421)，至少一个所述第二周向连接段(421)被定位在所述伸出部分(2e)的径向外侧且与所述伸出部分(2e)在所述轴向(A)上重叠布置。
  7. 根据权利要求6所述的电机定子，其特征在于，所述第二公共段(42)还包括第二中间连接段(422)，所述第二电连接部(41)经由所述第二中间连接段(422)与对应的所述第二周向连接段(421)相连，不同的所述第二周向连接段(421)经由所述第二中间连接段(422)相连。
  8. 根据权利要求5所述的电机定子，其特征在于，所述电源汇流排(3) 的轴向最外侧的部分和所述中性汇流排(4)的轴向最外侧的部分被形成为在所述轴向(A)上扁平的构造，并且所述电源汇流排(3)的轴向最外侧的部分和所述中性汇流排(4)的轴向最外侧的部分与所述伸出部分(2e)的轴向外侧端部彼此间隔开。
  9. 根据权利要求1至8中任一项所述的电机定子，其特征在于，所述多个连接部(2c)的轴向外侧端面彼此平齐。
  10. 一种电机，包括权利要求1至9中任一项所述的电机定子。
PCT/CN2024/082379 2024-03-19 2024-03-19 电机定子及电机 Pending WO2025194331A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112186934A (zh) * 2020-09-30 2021-01-05 恒大恒驰新能源汽车研究院(上海)有限公司 一种扁线电机的汇流排以及扁线电机
CN213782983U (zh) * 2020-11-20 2021-07-23 智新科技股份有限公司 扁线发卡定子结构及电机
CN115250046A (zh) * 2021-04-28 2022-10-28 舍弗勒技术股份两合公司 汇流排和电机
CN115498798A (zh) * 2022-09-02 2022-12-20 华为数字能源技术有限公司 一种电机、动力总成及车辆
CN218526201U (zh) * 2022-09-02 2023-02-24 华为数字能源技术有限公司 一种电机、动力总成及车辆
EP4254745A1 (de) * 2022-03-31 2023-10-04 Valeo eAutomotive Germany GmbH Statorvorrichtung für eine elektrische maschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112186934A (zh) * 2020-09-30 2021-01-05 恒大恒驰新能源汽车研究院(上海)有限公司 一种扁线电机的汇流排以及扁线电机
CN213782983U (zh) * 2020-11-20 2021-07-23 智新科技股份有限公司 扁线发卡定子结构及电机
CN115250046A (zh) * 2021-04-28 2022-10-28 舍弗勒技术股份两合公司 汇流排和电机
EP4254745A1 (de) * 2022-03-31 2023-10-04 Valeo eAutomotive Germany GmbH Statorvorrichtung für eine elektrische maschine
CN115498798A (zh) * 2022-09-02 2022-12-20 华为数字能源技术有限公司 一种电机、动力总成及车辆
CN218526201U (zh) * 2022-09-02 2023-02-24 华为数字能源技术有限公司 一种电机、动力总成及车辆

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