WO2023108913A1 - 定子总成、电机及助力自行车 - Google Patents

定子总成、电机及助力自行车 Download PDF

Info

Publication number
WO2023108913A1
WO2023108913A1 PCT/CN2022/079079 CN2022079079W WO2023108913A1 WO 2023108913 A1 WO2023108913 A1 WO 2023108913A1 CN 2022079079 W CN2022079079 W CN 2022079079W WO 2023108913 A1 WO2023108913 A1 WO 2023108913A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
stator assembly
main body
stator
assembly
Prior art date
Application number
PCT/CN2022/079079
Other languages
English (en)
French (fr)
Inventor
左亚军
王洪晓
周倩云
刘海量
Original Assignee
广东威灵电机制造有限公司
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
Priority claimed from CN202111544682.9A external-priority patent/CN114362404A/zh
Priority claimed from CN202123194439.7U external-priority patent/CN216625419U/zh
Application filed by 广东威灵电机制造有限公司 filed Critical 广东威灵电机制造有限公司
Publication of WO2023108913A1 publication Critical patent/WO2023108913A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • 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
    • 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 disclosure relates to the technical field of motors, in particular to a stator assembly, a motor and a power-assisted bicycle.
  • the stator assembly includes a busbar assembly and a stator assembly.
  • the stator assembly uses a segmented stator core, the individual segmented stator cores are wound separately and then spliced into a stator assembly. At this time, the stator assembly has more terminals.
  • the bus bar assembly needs to be equipped with more bus bar layers to obtain a sufficient number of bus bar connection terminals. However, this will increase the difficulty of the injection molding process of the bus bar assembly and reduce the efficiency of injection molding, thereby increasing the manufacturing cost of the bus bar.
  • the present disclosure aims to solve one of the technical problems existing in the related art at least to a certain extent. For this reason, the present disclosure proposes a stator assembly, which can reduce the number of layers of bus bars, thereby reducing the axial height of the stator assembly, while simplifying the structure and manufacturing process of the bus bar assembly, and improving the convenience of manufacture.
  • the present disclosure also provides a motor with the above stator assembly.
  • the present disclosure further provides an assist bicycle with the above-mentioned motor.
  • the stator assembly is provided with a plurality of segmented stator cores, and segmented stator windings wound on the segmented stator cores, each of the segmented stator windings has two terminals;
  • a bus bar assembly is installed on one end of the stator assembly along the axial direction, the bus bar assembly is provided with multi-layer bus bars, and the bus bars have a plurality of connecting parts;
  • stator assembly is also provided with a bridge connecting piece, and the bridge connecting piece is connected to each of the terminals of at least two of the segmented stator windings, and the connection part is connected to the rest of the stator assembly.
  • the terminals are connected in one-to-one correspondence.
  • the number of connecting parts of the bus bar assembly used to connect the terminals can be reduced, thereby reducing the number of layers of bus bars of the bus bar assembly and reducing the number of bus bar assemblies.
  • the axial dimension of the stator assembly is further reduced, and the number of layers of the bus bar and the number of connecting parts are reduced, so that the structure and manufacturing process of the bus bar assembly can be simplified, thereby improving the manufacturing efficiency of the bus bar assembly Convenience is beneficial to reduce the overall manufacturing cost of the stator assembly.
  • the bridge connecting piece is connected to each of the terminals of the two segmented stator windings of adjacent slots in the same phase.
  • the bridge connector is provided with a bridge portion and a welding portion connected to two ends of the bridge portion, and the welding portion is welded to the terminal.
  • the bridge portion and the welding portion are integrally formed.
  • the winding wires of the segmented stator windings have a square or waist-circular cross section.
  • the busbar assembly is provided with a clamping terminal, and the busbar assembly is clamped to the stator assembly through the clamping terminal.
  • the bus bar assembly further includes an annular support frame, and the bus bar includes a first bus bar, a second bus bar and a third bus bar;
  • the first bus bar is provided with a first main body embedded in the annular support frame, the first main body extends along the circumference of the annular support frame and has a first opening;
  • the second bus bar is provided with a second main body embedded in the annular support frame, the second main body extends along the circumferential direction of the annular support frame and has a second opening;
  • the third bus bar is provided with a third main body and a fourth main body embedded in the annular support frame and electrically connected, the fourth main body and the third main body are arranged along the annular support frame There is a gap in the axial direction;
  • first main body part and the second main body part are arranged at intervals along the axial direction of the annular support frame, and the first opening and the second opening are arranged staggered along the circumferential direction of the annular support frame , the third body part is located at the first opening, and the fourth body part is located at the second opening.
  • the height of the gap along the axial direction of the annular support frame is h, and the h satisfies: h ⁇ 0.3mm.
  • the third bus bar is further provided with a bent portion, and two ends of the bent portion are connected to the third main body and the fourth main body respectively.
  • the bus bar assembly fixes the first bus bar, the second bus bar, and the third bus bar through an injection molding process, and between adjacent bus bars Form an insulating layer.
  • the motor according to the embodiment of the second aspect of the present disclosure includes the stator assembly of the embodiment of the first aspect of the present disclosure.
  • the stator assembly connects the terminals of some segmented stator windings through bridge connectors, thereby reducing the number of connecting parts of the bus bar assembly used to connect the terminals , thereby reducing the number of layers of the bus bar of the bus bar assembly, which is conducive to reducing the axial height of the stator assembly, is conducive to reducing the axial size and volume of the motor, and improves the compatibility and adaptability of the motor and the whole machine.
  • the number of poles of the motor is 2p
  • the number of slots is Z
  • the number of poles and the number of slots satisfy:
  • 2.
  • the power-assisted bicycle according to the embodiment of the third aspect of the present disclosure includes the motor of the embodiment of the second aspect of the present disclosure.
  • Fig. 1 is a three-dimensional structural schematic diagram of a stator assembly of some embodiments of the present disclosure
  • Fig. 2 is a schematic diagram of an exploded structure of the stator assembly of Fig. 1;
  • Fig. 3 is a schematic perspective view of a stator assembly in some embodiments of the present disclosure.
  • Fig. 4 is a schematic perspective view of a bridge connector in some embodiments of the present disclosure.
  • Fig. 5 is a schematic perspective view of a busbar assembly in some embodiments of the present disclosure.
  • Fig. 6 is a schematic top view of the bus bar assembly in Fig. 5;
  • Fig. 7 is a schematic sectional view of A-A of Fig. 6;
  • Figure 8 is an enlarged view of B in Figure 7;
  • FIG. 9 is a schematic diagram of the assembly of bus bars according to some embodiments of the present disclosure.
  • Fig. 10 is a schematic perspective view of a third bus bar in some embodiments of the present disclosure.
  • the bus bar assembly 100 The bus bar assembly 100 ; the first bus bar 110 ; the first body part 111 ; the first connection part 112 ; the first opening 113 ; the third bus bar 130; the third main body 131; the fourth main body 132; the bending part 133; the third connecting part 134; the gap 135; the ring support frame 140; terminal 160;
  • Stator assembly 200 segmented stator core 210 ; segmented stator winding 220 ; terminal 221 ; bridge connector 230 ; bridge portion 231 ; welding portion 232 .
  • orientation descriptions such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the drawings, and only In order to facilitate the description of the present disclosure and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present disclosure.
  • the stator assembly includes a busbar assembly and a stator assembly.
  • the stator assembly uses a segmented stator core, the individual segmented stator cores are wound separately and then spliced into a stator assembly. At this time, the stator assembly has more terminals.
  • the bus bar assembly needs to be equipped with more bus bar layers to obtain a sufficient number of bus bar connection terminals. However, this will increase the difficulty of the injection molding process of the bus bar assembly and reduce the efficiency of injection molding, thereby increasing the manufacturing cost of the bus bar.
  • the present disclosure proposes a stator assembly, which can reduce the number of layers of bus bars, reduce the axial dimension of the bus bar assembly, and further reduce the axial height of the stator assembly , and at the same time, the structure and manufacturing process of the busbar assembly can be simplified, and the convenience of manufacturing can be improved.
  • a stator assembly provided by an embodiment of the first aspect of the present disclosure includes a stator assembly 200 and a bus bar assembly 100 , and the bus bar assembly 100 is installed and connected to one end of the stator assembly 200 along the axial direction.
  • the stator assembly 200 is provided with a plurality of segmented stator cores 210, and the plurality of segmented stator cores 210 are arranged in an annular distribution, and each segmented stator core 210 is wound with a subsection
  • the block stator windings 220 each have two terminals 221 .
  • the bus bar assembly 100 is provided with multiple layers of bus bars, and each bus bar has a plurality of connection portions for connecting the terminals 221 of the segmented stator windings 220 .
  • the connecting portion of the same bus bar is used to connect some of the terminals 221 of the segmented stator windings 220 that need to be connected together, so that the part of the terminals 221 can be electrically connected, thereby realizing the current converging function.
  • the stator assembly 200 further includes a bridge connector 230 , and the bridge connector 230 may be made of copper or aluminum or other conductive materials.
  • the bridge connector 230 is connected to each terminal 221 of at least two segmented stator windings 220 by means of welding or bonding, and the connection part is connected to the remaining terminals 221 of the stator assembly 200 in a one-to-one correspondence.
  • the bridge connector 230 can connect the terminals 221 where the two segmented stator windings 220 need to be connected together, so that the number of connecting parts can be reduced, thereby reducing the number of bus bars.
  • the bridge connecting piece 230 can also connect the terminals 221 where three or more segmented stator windings 220 need to be connected together.
  • the number of bridge connectors 230 can be set in multiples as required, so that more terminals 221 that need to be connected together can be connected, thereby reducing the number of connecting parts.
  • the number of connection parts of the bus bar assembly 100 used to connect the terminals 221 can be reduced, thereby reducing the bus bar of the bus bar assembly 100.
  • the number of layers reduces the axial dimension of the bus bar assembly 100, thereby reducing the axial height of the stator assembly.
  • the number of connecting parts is reduced, thereby greatly simplifying the structural complexity of the bus bar assembly 100 , reducing the difficulty of the overmolding process of the bus bar assembly 100, improving the manufacturing efficiency of the bus bar assembly 100, and helping to reduce the overall manufacturing cost of the stator assembly.
  • the bridge connector 230 is connected to the terminals 221 of the two segmented stator windings 220 of adjacent slots in the same phase that need to be connected together, so that The length of the bridge connector 230 is not too long, which facilitates the connection between the bridge connector 230 and the terminal 221 , and can reduce the impact of the bridge connector 230 on other components.
  • the structure of the bridge connecting piece 230 is relatively simple, which facilitates the processing and manufacturing of the bridge connecting piece 230 .
  • the present disclosure uses bridge connectors 230 to connect between adjacent slots of the same phase of the three-phase winding, so that the number of bus bar layers is reduced from 4 to 3, and the bus bar The number of connecting parts is reduced from the original 24 to 12, thereby effectively reducing the number of bus bar layers and the number of connecting parts of the bus bar assembly 100 .
  • the bridge connector 230 is provided with a bridge portion 231 and a welding portion 232, and the bridge portion 231 is a long strip conductor with a certain arc, so that It is convenient to avoid other terminals 221 that do not need to be connected with the bridge connector 230 .
  • the two ends of the elongated conductor are bent towards the terminal 221 to be connected, and two welding parts 232 are provided and connected to the two ends of the bridge part 231 respectively, so that the welding part 232 can be easily connected to the terminal 221 welding fixed.
  • the bridge portion 231 and the welding portion 232 can be manufactured in an integrated manner.
  • the bridge portion 231 and the welding portion 232 can be integrally made of copper through stamping and bending processes, so that the welding portion The connection strength between 232 and the bridge portion 231 is better, and the processing is also more convenient.
  • the bridge portion 231 and the welding portion 232 can also be manufactured separately and then welded together.
  • the winding wire of the stator winding is usually a round wire.
  • a large gap is formed between the round wire and the round wire, resulting in a relatively low slot fill rate of the winding.
  • the stator assembly 200 adopts integral iron core, and when round wire is used for winding, the slot full rate is usually only about 55%.
  • the segmented stator winding 220 is wound with a wire whose cross section is rectangular, square, or waist-circular in the embodiment of the present disclosure, for example Using flat wires for winding can greatly reduce the gap between the windings and improve the slot filling rate of the winding.
  • the slot filling rate can be increased to about 77%, so that the motor can be further improved without increasing the volume of the motor. power density and performance.
  • a bus bar assembly 100 provided by an embodiment of the present disclosure is installed at one end of the stator assembly 200 along the axial direction.
  • the bus bar assembly 100 can be provided with structures such as snap-in terminals 160, and the stator assembly 200 is provided with corresponding fastening positions, so that the bus bar assembly 100 can be snapped into the snap-in positions by the snap-in terminals 160 and installed on The end of the stator assembly 200 is relatively convenient to install and disassemble.
  • the bus bar assembly 100 includes an annular support frame 140, a first bus bar 110, a second bus bar 120 and a third bus bar 130, and of course the bus bar assembly 100 may also include other bus bars .
  • the annular support frame 140 is made of insulating material, which can fix and support the first bus bar 110 , the second bus bar 120 and the third bus bar 130 and isolate adjacent bus bars.
  • the annular support frame 140 is an overmolded part.
  • the first bus bar 110, the second bus bar 120, the third bus bar 130 and other bus bars are overmolded and fixed through the injection molding process, and at the same time, the adjacent bus bars An insulating layer is formed between the bus bars, so that the overall structure of the bus bar assembly 100 is more stable, and the adjacent bus bars have good insulation performance.
  • the first bus bar 110 , the second bus bar 120 and the third bus bar 130 are all made of copper bars or other materials with good electrical conductivity, and can play the role of bus flow.
  • the bus bar assembly 100 usually also includes a three-phase connection terminal 150, which is installed on the upper end of the ring support frame 140.
  • the three-phase connection terminal 150 has three connection terminals, and one end of the three connection terminals is respectively connected to three
  • the bus bars are connected one by one, and the other ends of the three connection terminals are connected to the power supply to supply power to the three-phase windings.
  • the first bus bar 110 is a flat plate structure, which includes a first body part 111 and a first connection part 112, the first body part 111 is embedded in the ring support frame 140 and along the ring support frame 140
  • the circumferential extension of the first body portion 111 is arranged so that the first body portion 111 is approximately in a semi-circular structure, and at this time, a first opening 113 is formed between two ends of the first body portion 111 along the circumferential direction.
  • the first connecting part 112 is connected to the outer peripheral wall of the first main body part 111.
  • the first connecting part 112 is used to connect the terminals 221 of the segmented stator windings 220 of the stator assembly 200 that need to be connected together, and through the first main part 111 to make The part of the terminal 221 is electrically connected to realize the current converging function.
  • the structure of the second bus bar 120 may be the same as or similar to that of the first bus bar 110 , which includes a second main body portion 121 and a second connecting portion 122 , and the second main body portion 121 is embedded in the ring support frame 140 The center and extend along the circumferential direction of the annular support frame 140 , so that the second main body portion 121 is roughly in the shape of a semi-circular ring. At this time, a second opening 123 is formed between two ends of the second main body portion 121 along the circumferential direction.
  • the second connecting part 122 is connected to the outer peripheral wall of the second main body part 121, and the second connecting part 122 is used to connect the terminal 221 of another part of the stator winding 220 of the stator assembly 200 that needs to be connected together, and passes through the second main part 121 This part of the terminal 221 is electrically connected, so as to realize the confluence function.
  • the third bus bar 130 includes a third body portion 131, a fourth body portion 132 and a third connection portion 134 electrically connected, and the third body portion 131 and the fourth body portion 132 are supported along a ring
  • the frame 140 is arranged circumferentially and embedded in the annular support frame 140, and the third main body portion 131 and the fourth main body portion 132 have a gap 135 in the axial direction of the annular support frame 140, so that the third bus bar 130 can span the Between busbars of different layers.
  • the third connecting portion 134 may be provided in multiples, part of the third connecting portion 134 is connected to the outer peripheral wall of the third main body portion 131, part of the third connecting portion 134 is connected to the outer peripheral wall of the fourth main body portion 132, and the third connecting portion 134
  • the terminal 221 used to connect another part of the segmented stator winding 220 of the stator assembly 200 needs to be connected together, and this part of the terminal 221 is electrically connected through the third main body 131 and the fourth main body 132 , so as to realize the current converging function.
  • the first bus bar 110 and the second bus bar 120 are arranged at intervals along the axial direction of the annular support frame 140 , and at the same time, they are rotated and staggered along the circumferential direction of the annular support frame 140 , so that the first opening 113 and the second opening 123 are arranged staggered along the circumferential direction of the annular support frame 140, the third main body part 131 is arranged in the first opening 113, and the fourth main body part 132 is arranged in the second opening 123, that is, the third main body part 131 and
  • the first main body 111 is located on the same floor, and the fourth main body 132 and the second main body 121 are located on the same floor, so that the third bus bar 130 can make full use of the idle space of the first bus bar 110 and the second bus bar 120, so that To reduce the total number of layers of bus bars, since the bus bars of adjacent layers are separated by the insulating layer 141 formed by the ring support frame 140, every time a
  • the third bus bar 130 can also be provided with a plurality of fourth main body parts 132 according to needs, and the plurality of fourth main body parts 132 are sequentially arranged at intervals along the axial direction of the annular support frame 140 , and along the circumference of the annular support frame 140 Staggered settings, so that each fourth main body 132 can be arranged at the opening of the corresponding bus bar, so that the third bus bar 130 can span more layers of bus bars, make full use of the idle space of other bus bars, thereby reducing Axial dimensions of the busbar assembly 100 .
  • the same-phase windings of the three-phase windings need to use bus bars for bridge connection, and the same-phase bridge connection bus bars of the related three-phase windings usually use straight copper bars, that is, adopt the above-mentioned first or second
  • the second bus bar 120 requires three layers of copper bars to realize the bridge connection, but if the bridge connection bus bar of a certain phase winding adopts the above-mentioned third bus bar 130, only two layers of copper bars are needed.
  • the number of the first bus bar 110 and the second bus bar 120 can be set to two or more, and the number of the third bus bar 130 can also be set to two or more, so that the number of bus bars can be reduced. More axial dimensions of assembly 100.
  • the insulating layer 141 is used to insulate and isolate the bus bars of adjacent layers.
  • the thickness of the insulating layer 141 is generally It needs to be thicker.
  • the height of the gap 135 between the third main body portion 131 and the fourth main body portion 132 along the axial direction of the annular support frame 140 is h, and h satisfies the following relationship: h ⁇ 0.3mm. Therefore, the height of the gap 135 is sufficiently high.
  • the insulating layer 141 is formed by injecting insulating material into the gap 135. At this time, the insulating layer 141 can be made to have a sufficient thickness, so that the third bus bar 130 and the phase Adjacent bus bars have better insulation performance, which is beneficial to improve the insulation and withstand voltage performance of the bus bar assembly 100 .
  • the third bus bar 130 is also provided with a bent portion 133 , and the bent portion 133 is arranged along the axial extension of the annular support frame 140 , or the bent portion 133 is arranged along the axis of the annular support frame 140 .
  • the axial direction of the axis is extended at an included angle, and the included angle is not greater than 90°, so that the third bus bar 130 is in a Z shape.
  • the bent portion 133 can extend from the bus bar of the next layer to the bus bar of the upper layer, Thus, both ends of the bent portion 133 can be respectively connected to the third main body portion 131 and the fourth main body portion 132 located on adjacent layers.
  • the bending portion 133 , the third main body portion 131 and the fourth main body portion 132 can be integrally formed.
  • the copper plate can be formed into the bent part 133, the third main part 131 and the fourth main part 132 integrally by stamping, so that the bent part 133, the third main part 131 The connection strength with the fourth main body part 132 is better, and the processing is more convenient.
  • the bending part 133, the third main body part 131 and the fourth main body part 132 can also be made separately, and then the bending part 133, the third main body part 131 and the fourth main body part 132 are connected to each other by welding or the like.
  • the third bus bar 130 may also connect the fourth body part 132 and the third body part 131 through wires, so as to realize the electrical connection between the fourth body part 132 and the third body part 131 .
  • wires For example, two ends of the copper wire are welded to the fourth main body 132 and the third main body 131 respectively, so as to electrically connect the third main body 131 and the fourth main body 132 located on adjacent layers.
  • the stator assembly adopts the above-mentioned bus bar assembly 100, and the bus bar assembly 100 is configured by arranging the third body part 131 of the third bus bar 130 in the first opening 113 of the first bus bar 110, and setting the third main body part 131 of the third bus bar 130
  • the fourth main body part 132 is arranged in the second opening 123 of the second bus bar 120, so that the idle space of the first bus bar 110 and the second bus bar 120 can be effectively used, and the number of layers of the bus bar can be further reduced, which is beneficial to further reduce the
  • the axial dimension of the bus bar assembly 100 further reduces the axial height of the stator assembly.
  • the embodiment of the second aspect of the present disclosure provides a motor, which includes the stator assembly of the embodiment of the first aspect of the present disclosure.
  • the stator assembly connects the terminals 221 of part of the segmented stator winding 220 through the bridge connector 230, so that the number of busbar components used to connect the terminals 221 can be reduced. 100, thereby reducing the number of layers of the bus bars of the bus bar assembly 100, thereby reducing the axial dimension of the bus bar assembly 100, thereby reducing the axial height of the stator assembly, which is beneficial to reducing the axial dimension of the motor and
  • the volume makes the structure of the motor more compact, thereby improving the compatibility and adaptability of the motor and the whole machine.
  • the number of poles of the motor is 2p
  • the number of slots is Z
  • the number of poles and the number of slots satisfy the following formula:
  • 2.
  • the embodiment of the fourth aspect of the present disclosure provides an assist bicycle, which includes the motor of the embodiment of the second aspect of the present disclosure.
  • the power-assisted bicycle includes the motor of the embodiment of the second aspect of the present disclosure, it also has all the beneficial effects of the motor of the embodiment of the second aspect of the present disclosure, which will not be repeated here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

一种定子总成、电机及助力自行车，其中定子总成包括定子组件(200)和汇流排组件(100)，定子组件(200)设有多个分块定子铁芯(210)，以及绕设于分块定子铁芯(210)的分块定子绕组(220)，每个分块定子绕组(220)具有两个接线端(221)，汇流排组件(100)安装于定子组件(200)沿轴向的一端，汇流排组件(100)设有多层汇流条，汇流条具有多个连接部，其中，定子组件(200)还设有过桥连接件(230)，过桥连接件(230)连接至少两个分块定子绕组(220)的各一接线端(221)，连接部与定子组件(200)其余的接线端(221)一一对应连接。

Description

定子总成、电机及助力自行车
相关申请的交叉引用
本申请要求于2021年12月16日提交的申请号为202111544682.9、名称为“定子总成、电机及助力自行车”，以及于2021年12月16日提交的申请号为202123194439.7、名称为“定子总成、电机及助力自行车”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及电机技术领域，特别涉及一种定子总成、电机及助力自行车。
背景技术
相关技术中，定子总成包括汇流排组件和定子组件，定子组件采用分块定子铁芯时，单个分块定子铁芯分别绕线再拼接成定子组件，此时定子组件的接线端比较多，导致汇流排组件需要设置较多的汇流条层数以获得足够数量的汇流条连接端子，然而这会增加汇流排组件的注塑工艺难度和降低注塑的效率，从而增加汇流排的工艺制造成本。此外，由于相邻层的汇流条之间设置有绝缘层，因此每增加一层汇流条的同时会增加一层绝缘层，使得汇流排组件的轴向尺寸比较大，进而使得定子总成的轴向高度较高，造成电机的轴向尺寸增加和体积增大，影响了电机和整机的兼容适配性。
发明内容
本公开旨在至少在一定程度上解决相关技术中存在的技术问题之一。为此，本公开提出一种定子总成，其能够减少汇流条的层数，进而降低定子总成的轴向高度，同时能够简化汇流排组件的结构和制作工艺，提高制作的便利性。
本公开还提供一种具有上述定子总成的电机。
本公开另外还提供一种具有上述电机的助力自行车。
根据本公开第一方面实施例的定子总成，包括：
定子组件，设有多个分块定子铁芯，以及绕设于所述分块定子铁芯的分块定子绕组，每个所述分块定子绕组具有两个接线端；
汇流排组件，安装于所述定子组件沿轴向的一端，所述汇流排组件设有多层汇流条，所述汇流条具有多个连接部；
其中，所述定子组件还设有过桥连接件，所述过桥连接件连接至少两个所述分块定子绕组的各一所述接线端，所述连接部与所述定子组件其余的所述接线端一一对应连接。
根据本公开第一方面实施例的定子总成，至少具有如下有益效果：
由于部分分块定子绕组的接线端通过过桥连接件进行连接，从而能够减少用于连接接线端的汇流排组件的连接部的数量，进而减少汇流排组件的汇流条的层数，降低汇流排组件的轴向尺寸，进而降低定子总成的轴向高度，同时由于汇流条的层数减少，连接部的数量减少，使得汇流排组件的结构和制作工艺能够得到简化，从而提高汇流排组件制作的便利性，有利于降低定子总成总体的制造成本。
根据本公开的一些实施例，所述过桥连接件连接于同相相邻槽的两个所述分块定子绕组的各一所述接线端。
根据本公开的一些实施例，所述过桥连接件设有过桥部和连接于所述过桥部两端的焊 接部，所述焊接部与所述接线端焊接。
根据本公开的一些实施例，所述过桥部与所述焊接部一体成型。
根据本公开的一些实施例，所述分块定子绕组的绕线的横截面为方形或腰圆形。
根据本公开的一些实施例，所述汇流排组件设有卡接端子，所述汇流排组件通过所述卡接端子卡接于所述定子组件。
根据本公开的一些实施例，所述汇流排组件还包括环形支撑架，所述汇流条包括第一汇流条、第二汇流条和第三汇流条；
所述第一汇流条设有内嵌于所述环形支撑架的第一主体部，所述第一主体部沿所述环形支撑架的周向延伸并具有第一开口；
所述第二汇流条设有内嵌于所述环形支撑架的第二主体部，所述第二主体部沿所述环形支撑架的周向延伸并具有第二开口；
所述第三汇流条设有内嵌于所述环形支撑架并电性连接的第三主体部和第四主体部，所述第四主体部与所述第三主体部沿所述环形支撑架的轴向具有间隙；
其中，所述第一主体部与所述第二主体部沿所述环形支撑架的轴向间隔设置，且所述第一开口与所述第二开口沿所述环形支撑架的周向错开设置，所述第三主体部位于所述第一开口，所述第四主体部位于所述第二开口。
根据本公开的一些实施例，所述间隙沿所述环形支撑架的轴向的高度为h，所述h满足：h≥0.3mm。
根据本公开的一些实施例，所述第三汇流条还设有折弯部，所述折弯部的两端分别连接所述第三主体部和所述第四主体部。
根据本公开的一些实施例，所述汇流排组件通过注塑工艺将所述第一汇流条、所述第二汇流条和所述第三汇流条包塑固定，并在相邻的汇流条之间形成绝缘层。
根据本公开第二方面实施例的电机，包括本公开第一方面实施例的定子总成。
根据本公开第二方面实施例的电机，至少具有如下有益效果：
该电机由于采用本公开第一方面实施例的定子总成，定子总成通过过桥连接件连接部分分块定子绕组的接线端，从而能够减少用于连接接线端的汇流排组件的连接部的数量，进而减少汇流排组件的汇流条的层数，从而有利于降低定子总成的轴向高度，有利于降低电机的轴向尺寸和体积，提高电机和整机的兼容适配性。
根据本公开的一些实施例，所述电机的极数为2p，槽数为Z，所述极数与所述槽数满足：|Z-2p|＝2。
根据本公开第三方面实施例的助力自行车，包括本公开第二方面实施例的电机。
根据本公开第三方面实施例的助力自行车，至少具有如下有益效果：
由于采用上述的电机，有利于降低助力自行车的体积，提高助力自行车的性能。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
图1是本公开一些实施例的定子总成的立体结构示意图；
图2是图1的定子总成的分解结构示意图；
图3是本公开一些实施例的定子组件的立体结构示意图；
图4是本公开一些实施例的过桥连接件的立体结构示意图；
图5是本公开一些实施例的汇流排组件的立体结构示意图；
图6是图5的汇流排组件的俯视示意图；
图7是图6的A-A剖视示意图；
图8是图7中的B处放大图；
图9是本公开一些实施例的汇流条的装配示意图；
图10是本公开一些实施例的第三汇流条的立体结构示意图。
附图标记：
汇流排组件100；第一汇流条110；第一主体部111；第一连接部112；第一开口113；第二汇流条120；第二主体部121；第二连接部122；第二开口123；第三汇流条130；第三主体部131；第四主体部132；折弯部133；第三连接部134；间隙135；环形支撑架140；绝缘层141；三相连接端子150；卡接端子160；
定子组件200；分块定子铁芯210；分块定子绕组220；接线端221；过桥连接件230；过桥部231；焊接部232。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
在本公开的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本公开的描述中，除非另有明确的限定，设置、安装、连接、装配、配合等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本公开中的具体含义。
相关技术中，定子总成包括汇流排组件和定子组件，定子组件采用分块定子铁芯时，单个分块定子铁芯分别绕线再拼接成定子组件，此时定子组件的接线端比较多，导致汇流排组件需要设置较多的汇流条层数以获得足够数量的汇流条连接端子，然而这会增加汇流排组件的注塑工艺难度和降低注塑的效率，从而增加汇流排的工艺制造成本。此外，由于相邻层的汇流条之间设置有绝缘层，因此每增加一层汇流条的同时会增加一层绝缘层，使得汇流排组件的轴向尺寸比较大，进而使得定子总成的轴向高度较高，造成电机的轴向尺寸增加和体积增大，影响了电机和整机的兼容适配性。
为了至少在一定程度上解决上述的至少一个技术问题，本公开提出一种定子总成，其能够减少汇流条的层数，降低汇流排组件的轴向尺寸，进而降低定子总成的轴向高度，同时能够简化汇流排组件的结构和制作工艺，提高制作的便利性。
参照图1至图2，本公开第一方面实施例提供的一种定子总成，包括定子组件200和汇流排组件100，汇流排组件100安装连接于定子组件200沿轴向的一端。
参照图2和图3，具体的，定子组件200设置有多个分块定子铁芯210，多个分块定子铁芯210呈环形分布设置，每个分块定子铁芯210上绕设有分块定子绕组220，每个分块定子绕组220具有两个接线端221。
参照图5，汇流排组件100设置有多层汇流条，每个汇流条均具有多个连接部，连接部用于连接分块定子绕组220的接线端221。同一个汇流条的连接部用于连接部分分块定子绕组220需要连接在一起的接线端221，使得该部分接线端221能够电性连接，从而实现汇流功能。
参照图1至图3，其中，定子组件200还包括过桥连接件230，过桥连接件230可以由铜材或铝材或是其他导电材料制成。过桥连接件230通过焊接或者粘接等方式连接至少两个分块定子绕组220的各一接线端221，连接部与定子组件200其余的接线端221一一对应连接。比如，过桥连接件230可以将两个分块定子绕组220需要连接于一起的接线端221进行连接，从而能够减少连接部的数量，进而减少汇流条的数量。当然，可以理解的是，过桥连接件230还可以将三个或者更多个分块定子绕组220需要连接于一起的接线端221进行连接。具体的，过桥连接件230的数量可以根据需要设置多个，从而可以将更多需要连接于一起的接线端221进行连接，进而能够减少更多数量的连接部。
由于部分分块定子绕组220的接线端221通过过桥连接件230进行连接，从而能够减少用于连接接线端221的汇流排组件100的连接部的数量，进而减少汇流排组件100的汇流条的层数，降低汇流排组件100的轴向尺寸，进而降低定子总成的轴向高度，同时由于汇流条的层数减少，连接部的数量减少，从而大大简化了汇流排组件100的结构复杂性，降低了汇流排组件100包塑工艺的难度，提升了汇流排组件100的制造效率，有利于降低定子总成总体的制造成本。
参照图3，可以理解的是，在本公开的一些实施例中，过桥连接件230连接于同相相邻槽的两个分块定子绕组220的各一需要连接于一起的接线端221，从而使得过桥连接件230的长度不至于过长，方便过桥连接件230与接线端221的连接，同时能够减少过桥连接件230对其他部件的影响。另外，由于一个过桥连接件230只连接两个接线端221，使得过桥连接件230的结构较为简单，方便过桥连接件230的加工制作。
具体的，以12槽的定子总成为例，本公开在三相绕组的同相相邻槽之间采用过桥连接件230进行连接，从而使得汇流条层数由4层减少至3层，汇流条的连接部的数量由原来的24个减少到12个，从而有效减少了汇流排组件100的汇流条的层数和连接部的数量。
参照图4，可以理解的是，在本公开的一些实施例中，过桥连接件230设置有过桥部231和焊接部232，过桥部231为具有一定弧度的长条状导体，从而可以方便避让其他不需与过桥连接件230连接的接线端221。具体的，长条状导体的两端朝向需要连接的接线端221弯折，焊接部232设置有两个并分别连接于过桥部231的两端，从而使得焊接部232能够方便地与接线端221焊接固定。
可以理解的是，过桥部231与焊接部232可以采用一体成型的方式制作，比如，可以将铜材通过冲压折弯等工艺，一体制成过桥部231和焊接部232，从而使得焊接部232与过桥部231的连接强度更好，同时加工也更方便。当然，需要说明的是，过桥部231和焊接部232也可以单独制作，然后再焊接于一体。
可以理解的是，相关技术中，定子绕组的绕线通常为圆线，绕线时，圆线与圆线之间形成有较大的空隙，造成绕线的槽满率比较低，当定子组件200采用整体铁芯，并采用圆 线进行绕线时，槽满率通常只有55％左右。参照图2和图3，为此，本公开实施例在采用分块定子铁芯210的基础上，同时分块定子绕组220采用横截面为长方形或正方形或腰圆形的线进行绕线，例如采用扁线进行绕线，从而可以大大降低绕线之间的空隙，提高绕线的槽满率，槽满率可以提升至77％左右，从而在不增加电机体积的条件下，能够进一步提升电机的功率密度和性能。
参照图1、图5和图6，本公开实施例提供的一种汇流排组件100，安装于定子组件200沿轴向的一端。具体的，汇流排组件100可以通过设置有卡接端子160等结构，定子组件200设置有相应的扣接位，从而使得汇流排组件100能够通过卡接端子160卡扣于扣接位而安装于定子组件200的端部，安装和拆卸均比较方便。
参照图5和图9，具体的，汇流排组件100包括环形支撑架140、第一汇流条110、第二汇流条120和第三汇流条130，当然汇流排组件100还可以包括其他的汇流条。环形支撑架140由绝缘材料制成，其能够对第一汇流条110、第二汇流条120和第三汇流条130起到固定支撑以及隔离相邻汇流条的作用。环形支撑架140为包塑件，制作环形支撑架140时，通过注塑工艺将第一汇流条110、第二汇流条120和第三汇流条130以及其他的汇流条包塑固定，同时使得相邻的汇流条之间形成有绝缘层，从而使得汇流排组件100的整体结构更为稳固，而且使得相邻的汇流条之间具有良好的绝缘性能。
第一汇流条110、第二汇流条120和第三汇流条130均由铜排或者其他导电良好的材料制成，能够起到汇流的作用。当然，汇流排组件100通常还包括三相连接端子150，三相连接端子150安装于环形支撑架140的上端，三相连接端子150具有三个连接端子，三个连接端子的一端分别与三个汇流条一一对应连接，三个连接端子的另一端与电源连接，对三相绕组进行供电。
参照图9，具体的，第一汇流条110为平板结构，其包括第一主体部111和第一连接部112，第一主体部111内嵌于环形支撑架140中并沿着环形支撑架140的周向延伸设置，使得第一主体部111大致呈半圆环结构，此时第一主体部111沿周向的两端之间形成有第一开口113。第一连接部112连接于第一主体部111的外周壁，第一连接部112用于连接定子组件200部分分块定子绕组220需要连接在一起的接线端221，并通过第一主体部111使得该部分接线端221电性连接，从而实现汇流功能。
参照图9，第二汇流条120的结构可以与第一汇流条110的结构相同或者类似，其包括第二主体部121和第二连接部122，第二主体部121内嵌于环形支撑架140中并沿着环形支撑架140的周向延伸设置，使得第二主体部121大致呈半圆环结构，此时第二主体部121沿周向的两端之间形成有第二开口123。第二连接部122连接于第二主体部121的外周壁，第二连接部122用于连接定子组件200另一部分分块定子绕组220需要连接在一起的接线端221，并通过第二主体部121使得该部分接线端221电性连接，从而实现汇流功能。
参照图9和图10，第三汇流条130包括电性连接的第三主体部131、第四主体部132和第三连接部134，第三主体部131和第四主体部132沿着环形支撑架140的周向设置并内嵌于环形支撑架140中，且第三主体部131和第四主体部132在环形支撑架140的轴向上具有间隙135，使得第三汇流条130能够跨越于不同层的汇流条之间。第三连接部134可以设有多个，部分第三连接部134连接于第三主体部131的外周壁，部分第三连接部134连接于第四主体部132的外周壁，第三连接部134用于连接定子组件200又一部分分块定 子绕组220需要连接在一起的接线端221，并通过第三主体部131和第四主体部132使得该部分接线端221电性连接，从而实现汇流功能。
参照图9，其中，第一汇流条110和第二汇流条120沿着环形支撑架140的轴向间隔设置，同时两者沿着环形支撑架140的周向旋转错开设置，使得第一开口113和第二开口123沿着环形支撑架140的周向错开设置，第三主体部131设置于第一开口113内，第四主体部132设置于第二开口123内，即第三主体部131和第一主体部111位于同一层，第四主体部132和第二主体部121位于同一层，使得第三汇流条130可以充分利用第一汇流条110和第二汇流条120的闲置空间，从而可以减少汇流条的总层数，由于相邻层的汇流条之间通过环形支撑架140构成的绝缘层141进行隔离，因此每减少一层汇流条，汇流排组件100还同时减少一层绝缘层141，从而可以有效降低汇流排组件100的轴向高度，进而降低定子总成的轴向高度。
可以理解的是，第三汇流条130还可以根据需要设置多个第四主体部132，多个第四主体部132沿环形支撑架140的轴向依次间隔设置，并沿环形支撑架140的周向错开设置，使得每个第四主体部132可以设置于相应的汇流条的开口处，从而使得第三汇流条130可以跨越更多层的汇流条，充分利用其它汇流条的闲置空间，从而降低汇流排组件100的轴向尺寸。
具体的，三相绕组的同相绕组之间需要采用汇流条进行过桥连接，而相关的三相绕组的同相过桥连接汇流条通常采用平直结构的铜排，即采用上述的第一或第二汇流条120，此时需要三层铜排才能实现过桥连接，但若其中的某相绕组的过桥连接汇流条采用上述的第三汇流条130时，则只需两层铜排即可实现三相绕组的同相绕组之间的过桥连接，从而减少了铜排层数，每减少一层铜排厚度T1的同时会减少一层绝缘层厚度T2，因此使得汇流排组件100的轴向高度能够降低T，T＝T1+T2，从而可以有效缩减定子总成的高度，使得电机结构更为紧凑，有效缩小了电机体积，提升了电机适配性。
需要说明的是，在一些实施例中，第一汇流条110和第二汇流条120的数量可以设置为两条或以上，第三汇流条130也可以设置两条或以上，从而可以降低汇流排组件100更多的轴向尺寸。
参照图7和图8，需要说明的是，相邻层的汇流条之间通过绝缘层141进行绝缘隔离，为了使得相邻层的汇流条之间的绝缘性能更好，绝缘层141的厚度通常需要设置得比较厚。为此，在本公开的一些实施例中，第三主体部131和第四主体部132沿环形支撑架140的轴向的间隙135高度为h，h满足以下关系：h≥0.3mm。从而使得间隙135高度足够高，制作汇流排组件100时，通过将绝缘材料注入间隙135内而形成绝缘层141，此时能够使得绝缘层141具有足够的厚度，从而使得第三汇流条130与相邻的汇流条之间具有较好的绝缘性能，有利于提升汇流排组件100的绝缘耐压性能。
参照图10，可以理解的是，第三汇流条130还设置有折弯部133，折弯部133沿着环形支撑架140的轴向延伸设置，或者折弯部133沿着与环形支撑架140的轴向呈夹角的方向延伸设置，夹角不大于90°，使得第三汇流条130呈Z形状，此时折弯部133能够由下一层的汇流条延伸至上一层的汇流条，从而使得折弯部133的两端能够分别连接位于相邻层的第三主体部131和第四主体部132。
参照图10，需要说明的是，折弯部133、第三主体部131和第四主体部132可以采用一体成型制成。比如，制作第三汇流条130时，可以将铜板采用冲压成型的方式一体制成 折弯部133、第三主体部131和第四主体部132，从而使得折弯部133、第三主体部131和第四主体部132之间的连接强度更好，同时加工更为方便。当然，也可以将折弯部133、第三主体部131和第四主体部132分别单独制作，然后再通过焊接等方式将折弯部133、第三主体部131和第四主体部132连接于一体。
需要说明的是，第三汇流条130也可以通过导线将第四主体部132和第三主体部131连接，从而实现第四主体部132与第三主体部131的电性连接。比如，将铜线的两端分别焊接于第四主体部132和第三主体部131，从而将位于相邻层的第三主体部131和第四主体部132电性连接。
定子总成采用上述的汇流排组件100，该汇流排组件100通过将第三汇流条130的第三主体部131设于第一汇流条110的第一开口113，以及将第三汇流条130的第四主体部132设于第二汇流条120的第二开口123，从而可以有效利用第一汇流条110和第二汇流条120的闲置空间，进一步减少汇流条的层数，从而有利于进一步降低汇流排组件100的轴向尺寸，进而降低定子总成的轴向高度。
本公开第二方面实施例提供了一种电机，该电机包括本公开第一方面实施例的定子总成。
该电机由于采用本公开第一方面实施例的定子总成，定子总成通过过桥连接件230连接部分分块定子绕组220的接线端221，从而能够减少用于连接接线端221的汇流排组件100的连接部的数量，进而减少汇流排组件100的汇流条的层数，从而降低汇流排组件100的轴向尺寸，进而降低定子总成的轴向高度，有利于降低电机的轴向尺寸和体积，使得电机结构更为紧凑，从而提高电机和整机的兼容适配性。
需要说明的是，为提高电机的效率，在本公开的一些实施例中，电机的极数为2p，槽数为Z，极数与槽数满足以下公式：|Z-2p|＝2。当电机的极数和槽数满足上述公式时，电机的基波绕组系数能够取得较高值，各低次谐波绕组系数取得较低值，因此能够在提高电机磁负荷的同时，有利于降低谐波磁场产生的噪音及谐波损耗，有利于提高电机的效率。
本公开第四方面实施例提供了一种助力自行车，其包括本公开第二方面实施例的电机。
由于该助力自行车包括本公开第二方面实施例的电机，因此也具有本公开第二方面实施例的电机的全部有益效果，在此不再一一赘述。
上面结合附图对本公开实施例作了详细说明，但是本公开不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本公开宗旨的前提下作出各种变化。

Claims (13)

  1. 定子总成，包括：
    定子组件，设有多个分块定子铁芯，以及绕设于所述分块定子铁芯的分块定子绕组，每个所述分块定子绕组具有两个接线端；
    汇流排组件，安装于所述定子组件沿轴向的一端，所述汇流排组件设有多层汇流条，所述汇流条具有多个连接部；
    其中，所述定子组件还设有过桥连接件，所述过桥连接件连接至少两个所述分块定子绕组的各一所述接线端，所述连接部与所述定子组件其余的所述接线端一一对应连接。
  2. 根据权利要求1所述的定子总成，其中所述过桥连接件连接于同相相邻槽的两个所述分块定子绕组的各一所述接线端。
  3. 根据权利要求2所述的定子总成，其中所述过桥连接件设有过桥部和连接于所述过桥部两端的焊接部，所述焊接部与所述接线端焊接。
  4. 根据权利要求3所述的定子总成，其中所述过桥部与所述焊接部一体成型。
  5. 根据权利要求1所述的定子总成，其中所述分块定子绕组的绕线的横截面为方形或腰圆形。
  6. 根据权利要求1所述的定子总成，其中所述汇流排组件还设有卡接端子，所述汇流排组件通过所述卡接端子卡接于所述定子组件。
  7. 根据权利要求1至6任一项所述的定子总成，其中，
    所述汇流排组件还设有环形支撑架，所述汇流条包括第一汇流条、第二汇流条和第三汇流条；
    所述第一汇流条设有内嵌于所述环形支撑架的第一主体部，所述第一主体部沿所述环形支撑架的周向延伸并具有第一开口；
    所述第二汇流条设有内嵌于所述环形支撑架的第二主体部，所述第二主体部沿所述环形支撑架的周向延伸并具有第二开口；
    所述第三汇流条设有内嵌于所述环形支撑架并电性连接的第三主体部和第四主体部，所述第四主体部与所述第三主体部沿所述环形支撑架的轴向具有间隙；
    其中，所述第一主体部与所述第二主体部沿所述环形支撑架的轴向间隔设置，且所述第一开口与所述第二开口沿所述环形支撑架的周向错开设置，所述第三主体部位于所述第一开口，所述第四主体部位于所述第二开口。
  8. 根据权利要求7所述的定子总成，其中所述间隙沿所述环形支撑架的轴向的高度为h，所述h满足：h≥0.3mm。
  9. 根据权利要求7所述的定子总成，其中所述第三汇流条还设有折弯部，所述折弯部的两端分别连接所述第三主体部和所述第四主体部。
  10. 根据权利要求7所述的定子总成，其中所述汇流排组件通过注塑工艺将所述第一汇流条、所述第二汇流条和所述第三汇流条包塑固定，并在相邻的汇流条之间形成绝缘层。
  11. 电机，包括如权利要求1至10任一项所述的定子总成。
  12. 根据权利要求11所述的电机，其中所述电机的极数为2p，槽数为Z，所述极数与所述槽数满足：|Z-2p|＝2。
  13. 助力自行车，包括如权利要求11或12所述的电机。
PCT/CN2022/079079 2021-12-16 2022-03-03 定子总成、电机及助力自行车 WO2023108913A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202111544682.9A CN114362404A (zh) 2021-12-16 2021-12-16 定子总成、电机及助力自行车
CN202123194439.7U CN216625419U (zh) 2021-12-16 2021-12-16 定子总成、电机及助力自行车
CN202111544682.9 2021-12-16
CN202123194439.7 2021-12-16

Publications (1)

Publication Number Publication Date
WO2023108913A1 true WO2023108913A1 (zh) 2023-06-22

Family

ID=86775118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/079079 WO2023108913A1 (zh) 2021-12-16 2022-03-03 定子总成、电机及助力自行车

Country Status (1)

Country Link
WO (1) WO2023108913A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748534A2 (de) * 2005-07-27 2007-01-31 ebm-papst Mulfingen GmbH & Co.KG Stator eines Elektromotors mit Wicklungs-Verschaltungsanordnung
CN110635585A (zh) * 2018-06-21 2019-12-31 西门子歌美飒可再生能源公司 具有柔性电连接的分段定子组件、发电机和具有这种定子组件的风力涡轮机
CN212648673U (zh) * 2020-06-09 2021-03-02 安徽威灵汽车部件有限公司 汇流排、电机、水泵和车辆
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748534A2 (de) * 2005-07-27 2007-01-31 ebm-papst Mulfingen GmbH & Co.KG Stator eines Elektromotors mit Wicklungs-Verschaltungsanordnung
CN110635585A (zh) * 2018-06-21 2019-12-31 西门子歌美飒可再生能源公司 具有柔性电连接的分段定子组件、发电机和具有这种定子组件的风力涡轮机
CN212648673U (zh) * 2020-06-09 2021-03-02 安徽威灵汽车部件有限公司 汇流排、电机、水泵和车辆
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

Similar Documents

Publication Publication Date Title
CN102163885B (zh) 电机及其定子用连接器
WO2007111287A1 (ja) 回転電機用端末モジュールおよび回転電機
JP2001103700A (ja) 電動機のステーター
CN210608719U (zh) 一种车用永磁同步电机扁线定子
CN208479317U (zh) 无刷直流电机、电机定子及其汇流盘
CN112186934B (zh) 一种扁线电机的汇流排以及扁线电机
CN110445280A (zh) 定子端部连接组件及扁线电机
WO2023108913A1 (zh) 定子总成、电机及助力自行车
CN203456955U (zh) 电机定子组件及其应用的电机
CN114362404A (zh) 定子总成、电机及助力自行车
CN218678607U (zh) 一种用于定子绕组的接线端子组件、电机和动力装置
WO2023108919A1 (zh) 汇流排组件、定子总成、电机及助力自行车
CN218868002U (zh) 一种定子绕组、定子及电机
WO2020088148A1 (zh) 一种线圈连接件及线圈组件
CN217282421U (zh) 紧凑型无刷电机
CN113922552B (zh) 一种扁线发卡式定子结构及电机
CN216625419U (zh) 定子总成、电机及助力自行车
WO2023108914A1 (zh) 电机、动力总成及助力自行车
CN210629222U (zh) 定子端部连接组件及扁线电机
CN216699655U (zh) 汇流排组件、定子总成、电机及助力自行车
CN211046580U (zh) 定子铁芯及电机
US11418081B2 (en) Motor stator for compressor, permanent magnet motor, and compressor
CN107086692B (zh) 电机及其定子绝缘组件
CN216625426U (zh) 电机、动力总成及助力自行车
CN114362410A (zh) 汇流排组件、定子总成、电机及助力自行车

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22905684

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022905684

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022905684

Country of ref document: EP

Effective date: 20240620