WO2021077595A1 - 72-groove 6-layer flat copper wire hybrid winding structure and electric motor applying the winding structure - Google Patents

72-groove 6-layer flat copper wire hybrid winding structure and electric motor applying the winding structure Download PDF

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WO2021077595A1
WO2021077595A1 PCT/CN2019/127442 CN2019127442W WO2021077595A1 WO 2021077595 A1 WO2021077595 A1 WO 2021077595A1 CN 2019127442 W CN2019127442 W CN 2019127442W WO 2021077595 A1 WO2021077595 A1 WO 2021077595A1
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winding
winding structure
slot
layer
copper wire
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PCT/CN2019/127442
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French (fr)
Chinese (zh)
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王丽
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浙江龙芯电驱动科技有限公司
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    • 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
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

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  • the invention relates to a motor winding structure and a motor using the winding structure, in particular to a 72-slot 6-layer flat copper wire mixed winding structure and a motor using the winding structure.
  • the difference between the flat wire motor and the round wire motor is the copper wire forming method.
  • the flat wire is beneficial to the improvement of the slot full rate of the motor.
  • the slot full rate of the round wire motor is about 40%, while the slot full rate of the flat wire motor can reach More than 60%.
  • the improvement of the slot full rate means that more copper wires can be filled under the premise of the same space. The lower the resistance of the motor, the lower the copper loss under the same current.
  • the contact area between the copper conductors in the flat wire motor slot is larger, and the thermal conductivity is better.
  • the double-layer wave winding structure includes components distributed in different layers.
  • the inductance values of the components in different layers are different.
  • the smallest coil unit itself is not self-balanced. It is impossible to change the series-parallel connection between the smallest coil units. To realize the power change of multiple power levels.
  • the purpose of the present invention is to provide a 72-slot 6-layer flat copper wire hybrid winding structure and a motor using the winding structure. Aiming at the shortcomings of the prior art, the structure layout of the special-shaped wire at the winding end is greatly simplified, and the end of the winding structure is reduced. The size of the space.
  • a 72-slot 6-layer flat copper wire hybrid winding structure which is characterized in that it comprises a three-phase hybrid winding structure distributed in at least 6 winding layers, and each phase of the hybrid winding structure is composed of two winding branches.
  • the winding branches are composed of a plurality of winding elements evenly distributed in each winding layer, and adjacent winding elements are alternately distributed in the same slot and adjacent slots.
  • the lead ends of each of the winding branches are located in the innermost winding layer.
  • the lead ends of each of the winding branches are located in the outermost winding layer.
  • the lead-out terminal of the winding branch is located in the innermost winding layer or the outermost winding layer.
  • the pitches of the lead ends of the winding branches are not equal.
  • each winding branch is a U-shaped wire.
  • the pitches of the welding ends of the winding branches are equal.
  • the three-phase hybrid winding structure is distributed in 72-slot 8-pole windings or 72-slot 12-pole windings.
  • the motor includes the rectangular copper wire hybrid winding structure as described in any one of the above.
  • the 72-slot 6-layer flat copper wire hybrid winding structure of the present invention and the motor using the winding structure are easy to realize automatic wire insertion, easy to connect, simplify the connection process, and greatly simplify the design of the special-shaped wire at the end of the winding.
  • the structure layout reduces the space size occupied by the end of the winding structure, and achieves the purpose of the present invention.
  • Figure 1 is an expanded schematic diagram of the three-phase winding of the 72-slot, 6-layer, 8-pole flat copper wire hybrid winding structure of the present invention
  • FIG. 2 is a schematic diagram of the connection of the 72-slot 6-layer 8-pole flat copper wire hybrid winding structure of the present invention
  • FIG. 3 is an expanded schematic diagram of the three-phase winding of the 72-slot 6-layer 12-pole flat copper wire hybrid winding structure of the present invention.
  • FIG. 4 is a schematic diagram of the connection of the 72-slot 6-layer 12-pole flat copper wire hybrid winding structure of the present invention.
  • the 72-slot 6-layer rectangular copper wire hybrid winding structure of the present invention includes a three-phase hybrid winding structure distributed in at least six winding layers, and each phase hybrid winding structure includes a plurality of winding units It consists of 2 winding branches.
  • the winding units on each winding branch are distributed in 6 pairs of poles, and the number of winding units distributed under each pole is different.
  • the number of winding units of a winding branch under 8 poles is distributed as: 9, 6, 6, 6, 9, 12, 12, 12, and the other winding branch corresponds to the winding under the pole
  • the number of units is distributed as: 9, 12, 12, 12, 9, 6, 6, 6.
  • the two winding branches are distributed evenly and symmetrically in different winding layers.
  • each winding branch includes a U-shaped lead wire end and a welding end.
  • the pitches of the welding ends of each winding branch are equal, which facilitates automatic wire insertion.
  • the lead ends of each winding branch are arranged on the outermost winding layer and separated by a slot, which is convenient for connection and simplifies the connection process.
  • the lead ends of the two winding branches can be arranged on the first winding layer of the first and third slots (as shown in Figure 1 U1 and U2 are branch lead marks), which greatly simplifies the winding
  • the structural layout of the end special-shaped wire reduces the size of the space occupied by the end of the winding structure.
  • FIG. 1 it is a schematic diagram of the connection of the winding structure of this embodiment, taking U-phase stacked windings as an example (V and W phases are similar to U phases, and will not be repeated here):
  • the U-phase 1 branch winding includes a winding branch formed by 72 unit windings in series.
  • One branch of the winding winds in from the U1 position in Figure 1, and finally outputs from the X1 position to the three-phase center point.
  • the slot numbers of a branch connected in series are: 1 ⁇ 10 ⁇ 19 ⁇ 10 ⁇ 20 ⁇ 29 ⁇ 38 ⁇ 29 ⁇ 39 ⁇ 48 ⁇ 57 ⁇ 48 ⁇ 57 ⁇ 66 ⁇ 3 ⁇ 66 ⁇ 2 ⁇ 11 ⁇ 20 ⁇ 11 ⁇ 19 ⁇ 28 ⁇ 37 ⁇ 28.
  • the slot number that another branch passes through in series is: 3 ⁇ 12 ⁇ 21 ⁇ 12 ⁇ 21 ⁇ 30 ⁇ 39 ⁇ 30 ⁇ 38 ⁇ 47 ⁇ 56 ⁇ 47 ⁇ 56 ⁇ 47 ⁇ 37 ⁇ 46 ⁇ 55 ⁇ 46 ⁇ 55 ⁇ 64 ⁇ 1 ⁇ 64 ⁇ 56 ⁇ 65 ⁇ 2 ⁇ 65.
  • Each branch winding element is connected in series through a mixed connection form, and each branch is balanced.
  • FIG. 3 an expanded view of a 72-slot 12-pole 6-layer rectangular copper wire winding structure, which includes a three-phase mixed winding structure distributed in at least six winding layers.
  • the hybrid winding structure of each phase includes 2 winding branches composed of 6 winding units.
  • the 6 winding units are distributed under 6 pairs of poles in a one-to-one correspondence.
  • Each winding unit has 6 windings, which are connected in series through a hybrid connection.
  • Each winding branch runs through all the slot numbers of the corresponding phase, and at the same time, a sub-pole winding is distributed in different parity layers in adjacent slots.
  • adjacent winding elements are separated by a winding layer.
  • Each winding branch includes a U-shaped lead wire end and a welding end.
  • the pitches of the welding ends of each winding branch are equal, which facilitates automatic wire insertion.
  • the lead-out ends of each winding branch are arranged in the outermost winding layer and distributed in adjacent slots, which is convenient for connection and simplifies the connection process.
  • the star point line ends of each winding branch are arranged on the outermost winding layer and distributed in adjacent slots, which is convenient for connection and simplifies the connection process.
  • the lead-out ends of the two winding branches can be arranged on the first winding layer of the first and second slots respectively (as shown in Figure 3, U1 and U2 are branch lead-out lines identification), which greatly simplifies the winding
  • the structural layout of the end special-shaped wire reduces the size of the space occupied by the end of the winding structure.
  • FIG. 4 a schematic diagram of the connection of the winding structure of this embodiment, taking a U-phase stacked winding as an example (the V and W phases are similar to the U phase, and will not be repeated here):
  • the U-phase 1 branch winding includes a winding branch formed by 6 unit windings in series.
  • One branch of the winding is wound from the position of U1 in Figure 1.
  • the slot number of a unit winding is: 1 ⁇ 7 ⁇ 14 ⁇ 8, the other 5 units are symmetrically distributed in series, and finally output from the X1 position to the three-phase center point.
  • An electrode for a new energy automobile includes the 72-slot 6-layer flat copper wire hybrid winding structure of the present invention.
  • the automobile motor has high power density and small size, and is easy to realize the miniaturization of the automobile.

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

Abstract

A 72-groove 6-layer flat copper wire hybrid winding structure and an electric motor applying the winding structure, comprising a three-phase hybrid winding structure distributed in at least six winding layers. Each phase of the hybrid winding structure is constituted by two winding branches. The winding branches are constituted by multiple winding elements evenly distributed in the winding layers and are provided as adjacent winding elements being alternately distributed in a same groove and adjacent grooves. Compared with the prior art, the implementation of automated wire insertion is facilitated, connection is convenient, a wire connecting process is simplified, the structural layout of irregularly-shaped wires at an end part of the winding is greatly simplified, and the footprint of the end part of the winding structure is reduced.

Description

一种72槽6层扁铜线混合绕组结构以及应用该绕组结构的电机A 72-slot 6-layer flat copper wire mixed winding structure and a motor using the winding structure 技术领域Technical field
本发明涉及一种电机绕组结构以及应用该绕组结构的电机，特别涉及一种72槽6层扁铜线混合绕组结构以及应用该绕组结构的电机。The invention relates to a motor winding structure and a motor using the winding structure, in particular to a 72-slot 6-layer flat copper wire mixed winding structure and a motor using the winding structure.
背景技术Background technique
从长远来看，小型化、高速化将是新能源汽车电机的主要发展趋势，而小型化必然要求电机功率密度有大幅度提升；高功率密度带来的是对电机散热要求的提升，使用油冷却方式可以明显改善电机的散热，尤其应用在扁铜线绕组的电机上。In the long run, miniaturization and high speed will be the main development trend of new energy automobile motors, and miniaturization will inevitably require a significant increase in motor power density; high power density brings about an increase in the heat dissipation requirements of the motor, and the use of oil The cooling method can significantly improve the heat dissipation of the motor, especially for motors with flat copper wire windings.
扁线电机与圆线电机的区别在于铜线的成形方式，扁线有利于电机槽满率的提升，一般圆线电机的槽满率为40％左右，而扁线电机的槽满率能达到60％以上。槽满率的提升意味着在空间不变的前提下，可以填充更多的铜线，电机的电阻越低，相同电流下，铜损耗越低。对比圆线电机，扁线电机槽内的铜导体之间接触面积大，热导性能更好。The difference between the flat wire motor and the round wire motor is the copper wire forming method. The flat wire is beneficial to the improvement of the slot full rate of the motor. Generally, the slot full rate of the round wire motor is about 40%, while the slot full rate of the flat wire motor can reach More than 60%. The improvement of the slot full rate means that more copper wires can be filled under the premise of the same space. The lower the resistance of the motor, the lower the copper loss under the same current. Compared with the round wire motor, the contact area between the copper conductors in the flat wire motor slot is larger, and the thermal conductivity is better.
现有的一种扁铜线波绕组电枢绕组，在每槽导体层数为4，6，8…且并联支路为偶数时，由于最小线圈单元的相邻元件是分布在同一层的，双层波绕组结构包括分别分布在不同层的元件，位于不同层中的元件的电感值是不同的，最小线圈单元自身内部是非自平衡的，无法通过改变各最小线圈单元之间的串并联方式来实现多功率等级的功率更改。An existing rectangular copper wire wave winding armature winding, when the number of conductor layers per slot is 4, 6, 8... and the parallel branches are even, since the adjacent elements of the smallest coil unit are distributed on the same layer, The double-layer wave winding structure includes components distributed in different layers. The inductance values of the components in different layers are different. The smallest coil unit itself is not self-balanced. It is impossible to change the series-parallel connection between the smallest coil units. To realize the power change of multiple power levels.
因此，特别需要一种72槽6层扁铜线混合绕组结构以及应用该绕组结构的电机，以解决上述现有存在的问题。Therefore, there is a special need for a 72-slot 6-layer rectangular copper wire hybrid winding structure and a motor using the winding structure to solve the aforementioned existing problems.
发明概述Summary of the invention
技术问题technical problem
问题的解决方案The solution to the problem
技术解决方案Technical solutions
本发明的目的在于提供一种72槽6层扁铜线混合绕组结构以及应用该绕组结构的电机，针对现有技术的不足，大大简化绕组端部异形线的结构布局，减少绕组结构端部占据的空间尺寸。The purpose of the present invention is to provide a 72-slot 6-layer flat copper wire hybrid winding structure and a motor using the winding structure. Aiming at the shortcomings of the prior art, the structure layout of the special-shaped wire at the winding end is greatly simplified, and the end of the winding structure is reduced. The size of the space.
本发明所解决的技术问题可以采用以下技术方案来实现：The technical problem solved by the present invention can be realized by adopting the following technical solutions:
一种72槽6层扁铜线混合绕组结构，其特征在于，包括分布在至少6层绕组层中的三相混合绕组结构，每相所述混合绕组结构由2条绕组支路构成，所述绕组支路由均匀分布在各绕组层的多个绕组元件构成，且形成相邻绕组元件交替地分布在同一个槽和相邻槽中。A 72-slot 6-layer flat copper wire hybrid winding structure, which is characterized in that it comprises a three-phase hybrid winding structure distributed in at least 6 winding layers, and each phase of the hybrid winding structure is composed of two winding branches. The winding branches are composed of a plurality of winding elements evenly distributed in each winding layer, and adjacent winding elements are alternately distributed in the same slot and adjacent slots.
在本发明的一个实施例中，各所述绕组支路的引出线端均位于最内层的绕组层。In an embodiment of the present invention, the lead ends of each of the winding branches are located in the innermost winding layer.
在本发明的一个实施例中，各所述绕组支路的引出线端均位于最外层的绕组层。In an embodiment of the present invention, the lead ends of each of the winding branches are located in the outermost winding layer.
在本发明的一个实施例中，所述绕组支路的引出线端位于最内层的绕组层或者最外层的绕组层。In an embodiment of the present invention, the lead-out terminal of the winding branch is located in the innermost winding layer or the outermost winding layer.
在本发明的一个实施例中，各所述绕组支路的引出线端的节距不相等。In an embodiment of the present invention, the pitches of the lead ends of the winding branches are not equal.
在本发明的一个实施例中，各所述绕组支路的引出线端为U型线。In an embodiment of the present invention, the lead end of each winding branch is a U-shaped wire.
在本发明的一个实施例中，各所述绕组支路的焊接端的节距相等。In an embodiment of the present invention, the pitches of the welding ends of the winding branches are equal.
在本发明的一个实施例中，所述三相混合绕组结构分布在72槽8极或72槽12极的绕组中。In an embodiment of the present invention, the three-phase hybrid winding structure is distributed in 72-slot 8-pole windings or 72-slot 12-pole windings.
在本发明的一个实施例中，所述电机包括如上述任一项所述的扁铜线混合绕组结构。In an embodiment of the present invention, the motor includes the rectangular copper wire hybrid winding structure as described in any one of the above.
本发明的72槽6层扁铜线混合绕组结构以及应用该绕组结构的电机，与现有技术相比，便于实现自动化插线，便于连接，简化连接线工艺，大大简化绕组端部异形线的结构布局，减少绕组结构端部占据的空间尺寸，实现本发明的目的。Compared with the prior art, the 72-slot 6-layer flat copper wire hybrid winding structure of the present invention and the motor using the winding structure are easy to realize automatic wire insertion, easy to connect, simplify the connection process, and greatly simplify the design of the special-shaped wire at the end of the winding. The structure layout reduces the space size occupied by the end of the winding structure, and achieves the purpose of the present invention.
本发明的特点可参阅本案图式及以下较好实施方式的详细说明而获得清楚地了解。The characteristics of the present invention can be clearly understood by referring to the scheme of the present case and the detailed description of the following preferred embodiments.
发明的有益效果The beneficial effects of the invention
对附图的简要说明Brief description of the drawings
附图说明Description of the drawings
图1为本发明的72槽6层8极扁铜线混合绕组结构的三相绕组展开示意图；Figure 1 is an expanded schematic diagram of the three-phase winding of the 72-slot, 6-layer, 8-pole flat copper wire hybrid winding structure of the present invention;
图2为本发明的72槽6层8极扁铜线混合绕组结构的连接示意图；2 is a schematic diagram of the connection of the 72-slot 6-layer 8-pole flat copper wire hybrid winding structure of the present invention;
图3为本发明的72槽6层12极扁铜线混合绕组结构的三相绕组展开示意图；3 is an expanded schematic diagram of the three-phase winding of the 72-slot 6-layer 12-pole flat copper wire hybrid winding structure of the present invention;
图4为本发明的72槽6层12极扁铜线混合绕组结构的连接示意图。4 is a schematic diagram of the connection of the 72-slot 6-layer 12-pole flat copper wire hybrid winding structure of the present invention.
发明实施例Invention embodiment
本发明的实施方式Embodiments of the present invention
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。In order to make it easy to understand the technical means, creative features, objectives and effects achieved by the present invention, the present invention will be further explained below in conjunction with specific drawings.
实施例1Example 1
如图1和图2所示，本发明的72槽6层扁铜线混合绕组结构，包括分布在至少六层绕组层中的三相混合绕组结构，每相混合绕组结构包括由多个绕组单元组成的2条绕组支路。每条绕组支路上的绕组单元分布在6对极中，每个极下分布的绕组单元数有差异。一条绕组支路在8个极下的绕组单元数分布为：9个，6个，6个，6个，9个，12个，12个，12个，另外一条绕组支路对应极下的绕组单元数分布为：9个，12个，12个，12个，9个，6个，6个，6个。2条绕组支路在不同的绕组层形成均匀对称分布。As shown in Figures 1 and 2, the 72-slot 6-layer rectangular copper wire hybrid winding structure of the present invention includes a three-phase hybrid winding structure distributed in at least six winding layers, and each phase hybrid winding structure includes a plurality of winding units It consists of 2 winding branches. The winding units on each winding branch are distributed in 6 pairs of poles, and the number of winding units distributed under each pole is different. The number of winding units of a winding branch under 8 poles is distributed as: 9, 6, 6, 6, 9, 12, 12, 12, and the other winding branch corresponds to the winding under the pole The number of units is distributed as: 9, 12, 12, 12, 9, 6, 6, 6. The two winding branches are distributed evenly and symmetrically in different winding layers.
本实施例中，相邻的绕组元件有共用同一个槽，也有相隔一个槽，交替连接成一条完整的绕组支路。每条绕组支路包括U型的引出线端和焊接端。各绕组支路的焊接端的节距相等，便于实现自动化插线。各绕组支路的引出线端布置在最外层的绕组层且相隔1个槽，便于连接，简化连接线工艺。In this embodiment, the adjacent winding elements share the same slot, and some are separated by a slot, which are alternately connected to form a complete winding branch. Each winding branch includes a U-shaped lead wire end and a welding end. The pitches of the welding ends of each winding branch are equal, which facilitates automatic wire insertion. The lead ends of each winding branch are arranged on the outermost winding layer and separated by a slot, which is convenient for connection and simplifies the connection process.
例如，可以将2条绕组支路的引出线端分别布置在第1槽和第3槽的第一层绕组层(如图1所示U1和U2为支路引出线标识)，这样大大简化绕组端部异形线的结构布局，减少绕组结构端部占据的空间尺寸。For example, the lead ends of the two winding branches can be arranged on the first winding layer of the first and third slots (as shown in Figure 1 U1 and U2 are branch lead marks), which greatly simplifies the winding The structural layout of the end special-shaped wire reduces the size of the space occupied by the end of the winding structure.
如图1所示，为本实施例的绕组结构的连接示意图，以U相叠绕组为例(V、W相 与U相类似，在此不再赘述)：As shown in Figure 1, it is a schematic diagram of the connection of the winding structure of this embodiment, taking U-phase stacked windings as an example (V and W phases are similar to U phases, and will not be repeated here):
U相1支路绕组包括由72个单元绕组串联形成的绕组支路，该绕组1条支路从图1中U1位置处绕进去，最后从X1位置处输出至三相中心点。1条支路串联连接经过的槽号为：1→10→19→10→20→29→38→29→39→48→57→48→57→66→3→66→2→11→20→11→19→28→37→28。另外一条支路串联经过的槽号为：3→12→21→12→21→30→39→30→38→47→56→47→56→47→37→46→55→46→55→64→1→64→56→65→2→65。各条支流绕组元件通过混合连接形式串联起来，并使得各条支路达到平衡。The U-phase 1 branch winding includes a winding branch formed by 72 unit windings in series. One branch of the winding winds in from the U1 position in Figure 1, and finally outputs from the X1 position to the three-phase center point. The slot numbers of a branch connected in series are: 1→10→19→10→20→29→38→29→39→48→57→48→57→66→3→66→2→11→20→ 11→19→28→37→28. The slot number that another branch passes through in series is: 3→12→21→12→21→30→39→30→38→47→56→47→56→47→37→46→55→46→55→64 →1→64→56→65→2→65. Each branch winding element is connected in series through a mixed connection form, and each branch is balanced.
实施例2Example 2
如图3所示，一种72槽12极6层扁铜线绕组结构的展开图，包括分布在至少六层绕组层中的三相混合绕组结构。每相混合绕组结构包括由6个绕组单元组成的2条绕组支路。6个绕组单元一一对应分布在6对极下。每个绕组单元有6个绕组，通过混合连接方式串联在一起。每条绕组支路贯串了对应相的所有槽号，同时一个极下绕组分布在相邻槽内的不同奇偶层。As shown in Fig. 3, an expanded view of a 72-slot 12-pole 6-layer rectangular copper wire winding structure, which includes a three-phase mixed winding structure distributed in at least six winding layers. The hybrid winding structure of each phase includes 2 winding branches composed of 6 winding units. The 6 winding units are distributed under 6 pairs of poles in a one-to-one correspondence. Each winding unit has 6 windings, which are connected in series through a hybrid connection. Each winding branch runs through all the slot numbers of the corresponding phase, and at the same time, a sub-pole winding is distributed in different parity layers in adjacent slots.
本实施例中，相邻的绕组元件之间相隔一个绕组层。每条绕组支路包括U型的引出线端和焊接端。各绕组支路的焊接端的节距相等，便于实现自动化插线。各绕组支路的引出线端布置在最外层的绕组层且分布在相邻槽，便于连接，简化连接线工艺。各绕组支路的星点线端布置在最外层的绕组层且分布在相邻槽，便于连接，简化连接线工艺。In this embodiment, adjacent winding elements are separated by a winding layer. Each winding branch includes a U-shaped lead wire end and a welding end. The pitches of the welding ends of each winding branch are equal, which facilitates automatic wire insertion. The lead-out ends of each winding branch are arranged in the outermost winding layer and distributed in adjacent slots, which is convenient for connection and simplifies the connection process. The star point line ends of each winding branch are arranged on the outermost winding layer and distributed in adjacent slots, which is convenient for connection and simplifies the connection process.
例如，可以将2条绕组支路的引出线端分别布置在第1槽和第2槽的第一层绕组层(如图3所示U1和U2为支路引出线标识)，这样大大简化绕组端部异形线的结构布局，减少绕组结构端部占据的空间尺寸。For example, the lead-out ends of the two winding branches can be arranged on the first winding layer of the first and second slots respectively (as shown in Figure 3, U1 and U2 are branch lead-out lines identification), which greatly simplifies the winding The structural layout of the end special-shaped wire reduces the size of the space occupied by the end of the winding structure.
如图4所示，为本实施例的绕组结构的连接示意图，以U相叠绕组为例(V、W相与U相类似，在此不再赘述)：As shown in Fig. 4, a schematic diagram of the connection of the winding structure of this embodiment, taking a U-phase stacked winding as an example (the V and W phases are similar to the U phase, and will not be repeated here):
U相1支路绕组包括由6个单元绕组串联形成的绕组支路，该绕组1条支路从图1中U1位置处绕进去，1个单元绕组贯串的槽号为：1→7→14→8，另外5个单元对称分布方式串联，最后从X1位置处输出至三相中心点。The U-phase 1 branch winding includes a winding branch formed by 6 unit windings in series. One branch of the winding is wound from the position of U1 in Figure 1. The slot number of a unit winding is: 1→7→14 →8, the other 5 units are symmetrically distributed in series, and finally output from the X1 position to the three-phase center point.
一种新能源汽车的电极，包括上述本发明的72槽6层扁铜线混合绕组结构，该 汽车电机功率密度大、体积小，易于实现汽车的小型化。An electrode for a new energy automobile includes the 72-slot 6-layer flat copper wire hybrid winding structure of the present invention. The automobile motor has high power density and small size, and is easy to realize the miniaturization of the automobile.
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内，本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have Various changes and improvements fall within the scope of the claimed invention, which is defined by the appended claims and their equivalents.

Claims (9)

  1. 一种72槽6层扁铜线混合绕组结构，其特征在于，包括分布在至少6层绕组层中的三相混合绕组结构，每相所述混合绕组结构由2条绕组支路构成，所述绕组支路由均匀分布在各绕组层的多个绕组元件构成，且形成相邻绕组元件交替地分布在同一个槽和相邻槽中。A 72-slot 6-layer flat copper wire hybrid winding structure, which is characterized in that it comprises a three-phase hybrid winding structure distributed in at least 6 winding layers, and each phase of the hybrid winding structure is composed of two winding branches. The winding branches are composed of a plurality of winding elements evenly distributed in each winding layer, and adjacent winding elements are alternately distributed in the same slot and adjacent slots.
  2. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，各所述绕组支路的引出线端均位于最内层的绕组层。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the lead ends of each of the winding branches are located in the innermost winding layer.
  3. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，各所述绕组支路的引出线端均位于最外层的绕组层。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the lead ends of each of the winding branches are located in the outermost winding layer.
  4. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，所述绕组支路的引出线端位于最内层的绕组层或者最外层的绕组层。The 72-slot 6-layer flat copper wire hybrid winding structure according to claim 1, wherein the lead-out end of the winding branch is located in the innermost winding layer or the outermost winding layer.
  5. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，各所述绕组支路的引出线端的节距不相等。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the pitches of the lead ends of the winding branches are not equal.
  6. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，各所述绕组支路的引出线端为U型线。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the lead end of each winding branch is a U-shaped wire.
  7. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，各所述绕组支路的焊接端的节距相等。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the pitches of the welding ends of the winding branches are equal.
  8. 如权利要求1所述的72槽6层扁铜线混合绕组结构，其特征在于，所述三相混合绕组结构分布在72槽8极或72槽12极的绕组中。The 72-slot 6-layer rectangular copper wire hybrid winding structure according to claim 1, wherein the three-phase hybrid winding structure is distributed in 72-slot 8-pole windings or 72-slot 12-pole windings.
  9. 一种电机，其特征在于，所述电机包括如上述任意一项所述72槽6层扁铜线混合绕组结构。A motor, characterized in that the motor includes a 72-slot 6-layer rectangular copper wire hybrid winding structure as described in any one of the above.
PCT/CN2019/127442 2019-10-21 2019-12-23 72-groove 6-layer flat copper wire hybrid winding structure and electric motor applying the winding structure WO2021077595A1 (en)

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CN109327094A (en) * 2018-11-05 2019-02-12 浙江龙芯电驱动科技有限公司 A kind of new-energy automobile of 6 layers of 72 slot or more flat type copper wire lap winding structures and the application winding construction
CN110855044A (en) * 2019-10-21 2020-02-28 浙江龙芯电驱动科技有限公司 3-pair-pole 6-layer flat copper wire winding structure and motor applying same

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US6995492B1 (en) * 2002-07-12 2006-02-07 Denso Corporation Electric rotary machine equipped with stator coil consisting of sequentially connected conductor segments
CN108347115A (en) * 2018-03-30 2018-07-31 华域汽车电动系统有限公司 A kind of improved flat type copper wire wave winding armature winding
CN109120084A (en) * 2018-09-21 2019-01-01 华域汽车电动系统有限公司 A kind of flat type copper wire wave winding armature winding of current balance type
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