WO2013131223A1 - 一种低齿槽转矩电机定子及其装配方法 - Google Patents

一种低齿槽转矩电机定子及其装配方法 Download PDF

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Publication number
WO2013131223A1
WO2013131223A1 PCT/CN2012/001461 CN2012001461W WO2013131223A1 WO 2013131223 A1 WO2013131223 A1 WO 2013131223A1 CN 2012001461 W CN2012001461 W CN 2012001461W WO 2013131223 A1 WO2013131223 A1 WO 2013131223A1
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WIPO (PCT)
Prior art keywords
stator
unit
cogging torque
torque motor
slot
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PCT/CN2012/001461
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English (en)
French (fr)
Inventor
张咏玉
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常州亚通杰威电机有限公司
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Publication of WO2013131223A1 publication Critical patent/WO2013131223A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • H02K1/146Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148Sectional cores
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06Magnetic cores, or permanent magnets characterised by their skew

Definitions

  • the invention relates to a low cogging torque motor stator, and to an assembly method of the low cogging torque motor stator, belonging to the field of a DC brushless permanent magnet motor.
  • DC brushless permanent magnet motors Compared with induction motors, DC brushless permanent magnet motors have good controllability, as well as large starting torque, low speed direct drive, high power factor and density, but their cogging torque is always DC.
  • the inherent disadvantage of the brush permanent magnet motor is that the cogging torque is a torque generated in the circumferential direction by the interaction between the permanent magnet magnetic field and the tooth gap of the armature core in the case where the armature winding is not energized. Cogging torque often becomes the basic cause of motor vibration, noise and limit to improve control accuracy. Especially when the cogging torque frequency is consistent with the mechanical resonance frequency of the stator or rotor, the vibration and noise generated by the cogging torque will be amplification.
  • the Chinese patent of CN201781395U discloses a DC-brushless motor stator and rotor device with low cogging torque, which is composed of a stator core, a stator pole, a magnetic tile, a rotor shaft and a rotor, and a stator rotor is opened in the middle of the stator core.
  • the inner hole has at least three or more slots formed around the inner hole, each of the slots forming a stator pole, and the width of each two adjacent stator poles is unequal.
  • the technical problem to be solved by the present invention is to provide a low cogging torque motor stator and an assembly method thereof, which can greatly reduce the cogging torque while satisfying the basic performance of the motor.
  • the technical solution of the present invention is:
  • a low cogging torque motor stator includes a stator core and a stator coil, wherein: a stator core has an inner circumference integrally extending a plurality of stator teeth spaced apart from each other, and a stator shoe is provided at the end of the stator tooth, and each adjacent stator tooth Forming a stator slot, the stator coil is disposed in the stator slot, and one side of each of the two pole shoes is provided with one or more than one step, and the step corresponds to a step on the adjacent pole piece Fit, form a notched slot.
  • the twists of the corresponding mating steps are not equal.
  • the stator core is provided with an insulating skeleton, and the stator coil is placed in the stator slot by inserting a stator coil on the stator teeth through an insulating skeleton.
  • the insulating frame of the present invention is used to ensure insulation between the stator coil and the stator core.
  • the insulating skeleton of the present invention may comprise an upper insulating skeleton and a lower insulating skeleton, and of course, insulation may be performed by other means.
  • the stator core is formed by stacking stator strips, and the inner circumference of the stator strip integrally extends out of a plurality of stator teeth spaced apart, and the stator teeth are provided with pole pieces at the ends, and the steps are different.
  • the pole piece width of the pole piece is formed by lamination.
  • the stator comprises a plurality of stator units, and the stator unit and the stator unit are formed by splicing, and the stator unit is provided with splicing on both sides. structure.
  • the splicing structure is such that one side of the designated subunit is provided with a splicing spliced with its adjacent stator unit, and the other side is provided with a groove spliced with its adjacent stator unit.
  • the stator unit comprises a stator core unit and a stator coil unit, and the inner circumference of the stator core unit integrally extends one or a plurality of stator teeth distributed at intervals, and the stator teeth end are provided with pole pieces, and each adjacent stator A stator slot is formed between the teeth, and the stator coil unit is placed in the stator slot.
  • the splicing structure is a protrusion provided on one side of the designated sub-core unit and spliced with an adjacent stator core unit, and the other side is provided with a groove spliced with the adjacent stator core unit.
  • the stator core unit is provided with an insulating skeleton unit, and the stator coil unit is disposed in the stator slot by inserting the stator coil unit on the stator teeth through the insulating skeleton unit.
  • the stator core unit is formed by laminating a stator punching unit, and the stator punching unit integrally extends one or a plurality of stator teeth spaced apart at an inner circumference, and the stator teeth end is provided with a pole piece,
  • the steps are formed by lamination of stator die units having different pole shoe widths.
  • stator strips having different pole shoe widths into stator cores having one or more steps on both side sides, the steps corresponding to the steps on the adjacent pole pieces, Forming a notched slot;
  • a method for assembling a stator of a low cogging torque motor wherein: the operation steps are:
  • stator die units having different pole shoe widths into stator core units having one or more steps on both side faces, the steps corresponding to the steps on the adjacent pole pieces Cooperating to form a notched slot;
  • the step of adding before the step (2) is: installing an insulating skeleton on the stator core, and winding the stator coil on the stator teeth through the insulating skeleton to dispose the stator coil in the stator slot.
  • the step of adding before the step (2) is: installing an insulating skeleton unit on the stator core unit; and inserting the stator coil unit on the stator teeth by the insulating skeleton unit to dispose the stator coil unit in the stator slot.
  • the steps are matched with the steps on the adjacent pole pieces to form a notched slot, without affecting the motor
  • the cogging torque is greatly eliminated, and the cogging torque can be reduced by at least 20% compared with the conventional motor
  • stator unit spliced stator not only greatly facilitates the winding process, but also the slot coil fullness ratio of the stator coil can reach 90% or more; in addition, the stator unit spliced stator structure enables the stator slot to realize small slot.
  • the design is close to the effect of the existing slotless motor stator in eliminating the cogging effect, but the manufacturing process is simple and the manufacturing cost is low compared with the existing slotless motor stator, which is very suitable for production. Promote the application.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • Figure 2 is a partially exploded perspective view of Figure 1;
  • FIG 3 is a schematic view showing the structure of the stator core of Figure 1;
  • Figure 4 is a schematic structural view of the stator unit of Figure 2;
  • FIG. 5 is a schematic structural view of the stator core unit of Figure 4.
  • Figure 6 is a schematic view showing the structure of A in Figure 2;
  • Figure 7 is a schematic view showing the structure of B in Figure 2;
  • Figure 8 is a schematic view showing the structure of C in Figure 3;
  • stator core 100 stator coil 200, insulating bobbin 300, stator teeth 110, pole piece 120, stator slot 130, step 121, notch 131, stator punch 111, 111-1, 111-2, stator
  • a stator of a low-cogging torque motor includes a stator core 100 and a stator coil 200.
  • the stator core 100 integrally extends a plurality of stator teeth 110 spaced apart from each other at an inner circumference of the stator core 100.
  • the stator shoe 120 has a stator slot 130 formed between each adjacent stator tooth 110.
  • the stator coil 200 is disposed in the stator slot 130.
  • One side of each of the pole pieces 120 is provided with a step 121. 121 is matched with the step 121 on the adjacent pole piece 120 to form a notch 131 having a bent shape.
  • Embodiment 2 A stator of a low-cogging torque motor, comprising a stator core 100 and a stator coil 200, wherein: each of the side faces of each of the pole pieces 120 is provided with two spaced-apart steps 121, The step 121 is matched with the step 121 on the adjacent pole piece 120 to form a notched slot 131, and the rest is the same as in the first embodiment.
  • Embodiment 3 a stator of a low-cogging torque motor, comprising a stator core 100 and a stator coil 200, wherein: each of the side faces of each of the pole pieces 120 is provided with three spaced-apart steps 121, The step 121 is matched with the step 121 on the adjacent pole piece 120 to form a notched slot 131, and the rest is the same as in the first embodiment.
  • Embodiment 4 a stator of a low-cogging torque motor, comprising a stator core 100 and a stator coil 200, wherein: each of the side faces of each of the pole pieces 120 is provided with four spaced-apart steps 121, The step 121 is matched with the step 121 on the adjacent pole piece 120 to form a notched slot 131, and the rest is the same as in the first embodiment.
  • Embodiment 6 A stator of a low cogging torque motor, wherein: the heights of the corresponding mating steps 121 are not equal, and the rest are the same as any one of Embodiments 1-5.
  • Embodiment 7 a stator of a low cogging torque motor, wherein: the stator core 100 is provided with an insulating frame 300, and the stator coil 200 is placed in the stator slot 130 by a stator frame 200 is wound around the stator teeth 110, and the rest are the same as in any of the embodiments 1-6.
  • Embodiment 8 is a stator of a low-cogging torque motor, wherein: the stator core 100 is formed by laminating a stator punch 111, and a plurality of stator teeth 110 are spaced apart from each other at an inner circumference of the stator punch 111.
  • the poles 120 are provided at the ends of the stator teeth 110, and the steps 121 are formed by laminating the stator punches 111-1 and 111-2 having different pole shoe widths, and the rest are the same as those in the embodiments 1-7.
  • Embodiment 9 is a low cogging torque motor stator, wherein: the stator comprises a plurality of stator units, and the stator unit and the stator unit are formed by splicing, and the stator unit is provided with a splicing structure on both sides thereof,
  • the splicing structure is such that one side of the designated sub-unit is provided with a protrusion 113 spliced with its adjacent stator unit, and the other side is provided with a groove 112 spliced with its adjacent stator unit, and the rest is the same as any of the embodiments 1-8.
  • Embodiment 10 A stator of a low cogging torque motor, wherein: the stator unit comprises a stator core unit 100a and a stator coil unit 200a, and a stator tooth 110 is integrally extended on an inner circumference of the stator core unit 100a, and the stator A pole piece 120 is disposed at the end of the tooth 110, a stator slot 130 is formed between each adjacent stator tooth 110, and the stator coil unit 200a is placed in the stator slot 130, and the rest is the same as in Embodiment 9.
  • the stator unit comprises a stator core unit 100a and a stator coil unit 200a
  • a stator tooth 110 is integrally extended on an inner circumference of the stator core unit 100a
  • the stator A pole piece 120 is disposed at the end of the tooth 110
  • a stator slot 130 is formed between each adjacent stator tooth 110
  • the stator coil unit 200a is placed in the stator slot 130, and the rest is the same as in Embodiment 9.
  • Embodiment 11 A stator of a low-cogging torque motor, wherein: the stator core unit 100a integrally extends two circumferentially distributed stator teeth 110, and the rest are the same as Embodiment 10.
  • Embodiment 12 A low-cogging torque motor stator, wherein: the splicing structure is a designated sub-core unit 100a-side having a protrusion 113 spliced with an adjacent stator core unit 100a, and the other side is provided There are grooves 112 spliced with adjacent stator core units 100a, and the rest are the same as in Embodiment 10 or Embodiment 11.
  • Embodiment 13 is a low cogging torque motor stator, wherein: the stator core unit 100a is provided with an insulating skeleton unit 300a, and the stator coil unit 200a is placed in the stator slot 130 through an insulating skeleton unit. The stator coil unit 200a is wound around the stator teeth 110, and the rest is the same as in Embodiment 10 or Embodiment 11 or Embodiment 12.
  • Embodiment 14 is a low cogging torque motor stator, wherein: the stator core unit 100a is laminated by a stator punching unit 111a, and one stator tooth 110 is integrally extended on an inner circumference of the stator punching unit 111a.
  • the end of the stator tooth 110 is provided with a pole piece 120, and the step 121 is formed by laminating the stator die units ll la-l, 111a-2 having different pole shoe widths, and the rest are the same as those in the embodiment 10-13. Any of the embodiments.
  • Embodiment 15 A stator of a low cogging torque motor, wherein: the stator chip unit 111a integrally extends two spaced apart stator teeth 110 on the inner circumference thereof, and the rest are the same as in the embodiment 14.
  • Embodiment 16 A method for assembling a stator of a low cogging torque motor, wherein: the operation steps are:
  • a stator core 111 having different pole shoe widths is laminated to a stator core 100 having one or more than a plurality of steps 121 on both side sides, the step 121 and its adjacent pole piece 120 The step 121 correspondingly cooperates to form a notch 131 of a curved shape;
  • stator coil 200 is placed in the stator slot 130 to complete the stator assembly.
  • the rest are the same as any of the embodiments 1-15.
  • Embodiment 17 A method for assembling a stator of a low cogging torque motor, wherein: the operation steps are:
  • a stator core unit 111a having different pole shoe widths is laminated to a stator core unit 100a having one or more steps on both side sides, the step 121 and its adjacent pole piece 120
  • the upper step 121 is matched to form a notched slot 131;
  • Embodiment 18 A method for assembling a stator of a low cogging torque motor, wherein: adding step before step (2): mounting an insulating frame 300 on the stator core 100, and winding the stator coil 200 through the insulating frame 300 The stator coil 200 is disposed in the stator slot 130 on the stator teeth 110, and the rest is the same as in the embodiment 16.
  • Embodiment 19 A method for assembling a stator of a low cogging torque motor, wherein: adding step before step (2): mounting an insulating bobbin unit 300a on the stator core unit 100a, and stator coils passing through the insulating bobbin unit 300a The unit 200a is embedded around the stator teeth 110 to dispose the stator coil unit 200a within the stator slot 130. The rest are the same as in the embodiment 17.

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Abstract

一种低齿槽转矩电机定子,包括定子铁芯(100)和定子线圈(200),其中定子铁芯(100)内圆周一体延伸出间隔分布的多个定子齿(110),定子齿(110)末端设有极靴(120),各相邻定子齿(110)之间形成定子槽(130),定子线圈(200)置于定子槽(130)内,每个极靴(120)两侧侧面均设有1个或多个台阶(121),台阶(121)与其相邻极靴(120)上的台阶(121)对应配合,形成Z字形的槽口(131)。还公开了一种低齿槽转矩电机定子的装配方法。该定子在满足电机基本性能的同时,降低了齿槽转矩。

Description

说 明 书
~一种低齿槽转矩电机定子及其装配方法
技术领域
本发明涉及一种低齿槽转矩电机定子,还涉及该低齿槽转矩电机定子的装配 方法, 属于直流无刷永磁电机领域。
背景技术
与感应电机相比,直流无刷永磁电机具有很好的可控制性,以及大起动转矩, 低速直接驱动, 高功率因素和密度等特点,但其齿槽转矩较大一直是直流无刷永 磁电机固有的不足, 齿槽转矩是在电枢绕组不通电的情况下, 由永磁体磁场与电 枢铁芯的齿槽相互作用而在圆周方向上产生的转矩。齿槽转矩常常成为引起电机 振动、噪声和限制提高控制精度的基本原因,特别是当齿槽转矩频率与定子或转 子的机械共振频率一致时, 齿槽转矩产生的振动和噪声将被放大。传统已有较多 关于降低齿槽转矩的方法, 主要由分数槽法、 减小槽口宽度、 增大气隙磁密、 改 善气隙磁场分布、斜槽、斜极或磁极分段错位等, 虽然这些方法对降低齿槽转矩 均有一定的效果, 但由于这些均为改变电磁或尺寸参数, 降低齿槽转矩的效果有 限, 不能满足实际要求。
目前也有多项关于降低齿槽转矩的技术公开, 如授权公告号为
CN201781395U 的中国专利公开了一种低齿槽转矩的直流无刷电机定、 转子装 置, 由定子铁芯、 定子磁极、 磁瓦、 转子轴和转子构成, 定子铁芯的中间开有装 置转子的内孔, 在该内孔的周围开有至少三个以上的齿槽, 每个齿槽形成一个定 子磁极, 每两个相邻的定子磁极的宽度不等。此方法虽然在消除齿槽转矩上有一 定效果,但制造工艺复杂, 且由于其复杂的结构导致电机基本性能很难满足实际 要求。
因此,寻求一种低齿槽转矩电机一直是直流无刷永磁电机领域急待解决的技 术难题。 发明内容
本发明要解决的技术问题是提供一种低齿槽转矩电机定子及其装配方法, 满足电机基本性能的同时, 大大降低齿槽转矩。 本发明的技术方案为:
一种低齿槽转矩电机定子, 包括定子铁芯、 定子线圈, 其中: 定子铁芯内圆 周一体延伸出间隔分布的多个定子齿, 定子齿末端设有极靴, 各相邻定子齿之间 形成定子槽, 定子线圈置于定子槽内, 所述的每个极靴两侧侧面均设有 1个或 1 个以上的若干个台阶, 所述的台阶与其相邻极靴上的台阶对应配合,形成弯折形 状的槽口。
优选地, 所述的对应配合的台阶的髙度不相等。
优选地,所述的定子铁芯上设有绝缘骨架,所述的定子线圈置于定子槽内是 通过绝缘骨架将定子线圈嵌绕在定子齿上得到的。本发明所述的绝缘骨架用于确 保定子线圈与定子铁芯之间的绝缘。为了提高绝缘效果, 本发明所述的绝缘骨架 可包括上绝缘骨架和下绝缘骨架组成, 当然可采用其他方式进行绝缘。
优选地,所述的定子铁芯由定子冲片叠压而成, 定子冲片内圆周一体延伸出 间隔分布的多个定子齿, 定子齿末端设有极靴,所述的台阶是由具有不同极靴宽 度的定子冲片叠压后形成的。
优选地, 为了简化定子线圈绕线工艺, 同时提交定子线圈的槽满率, 所述的 定子包括若干个定子单元, 定子单元与定子单元之间通过拼接而成, 定子单元两 侧均设有拼接结构。优选地, 为了使定子单元之间配合稳定, 所述的拼接结构是 指定子单元一侧设有与其相邻定子单元拼接的凸起,另一侧设有与其相邻定子单 元拼接的凹槽。
优选地, 所述的定子单元包括定子铁芯单元、定子线圈单元, 定子铁芯单元 内圆周一体延伸出 1个或间隔分布的多个定子齿, 定子齿末端设有极靴, 各相邻 定子齿之间形成定子槽, 定子线圈单元置于定子槽内。优选地, 所述的拼接结构 是指定子铁芯单元一侧设有与相邻定子铁芯单元拼接的凸起,另一侧设有与相邻 定子铁芯单元拼接的凹槽。 优选地, 所述的定子铁芯单元上设有绝缘骨架单元, 所述的定子线圈单元置于定子槽内是通过绝缘骨架单元将定子线圈单元嵌绕在 定子齿上得到的。
优选地,所述的定子铁芯单元由定子冲片单元叠压而成, 定子冲片单元内圆 周一体延伸出 1个或间隔分布的多个定子齿, 定子齿末端设有极靴, 所述的台阶 是由具有不同极靴宽度的定子冲片单元叠压后形成的。 一种低齿槽转矩电机定子的装配方法, 其中: 其操作步骤为:
( 1 ) 将具有不同极靴宽度的定子冲片叠压成两侧侧面具有 1个或 1个以上 的若干个台阶的定子铁芯,所述的台阶与其相邻极靴上的台阶对应配合, 形成弯 折形状的槽口;
(2) 将定子线圈设置在定子槽内, 完成定子装配。
优选地, 一种低齿槽转矩电机定子的装配方法, 其中: 其操作步骤为:
( 1 ) 将具有不同极靴宽度的定子冲片单元叠压成两侧侧面具有 1个或 1个 以上的若干个台阶的定子铁芯单元,所述的台阶与其相邻极靴上的台阶对应配 合, 形成弯折形状的槽口;
(2) 将定子线圈单元设置在定子槽内得到定子单元;
(3) 将定子单元与定子单元进行拼接得到定子, 完成定子装配。
优选地, 在第 (2) 步骤前增加步骤: 在定子铁芯上安装绝缘骨架, 通过绝 缘骨架将定子线圈嵌绕在定子齿上实现将定子线圈设置在定子槽内。
优选地, 在第(2)步骤前增加步骤: 在定子铁芯单元上安装绝缘骨架单元; 通过绝缘骨架单元将定子线圈单元嵌绕在定子齿上实现将定子线圈单元设置在 定子槽内。
本发明具有以下优点:
1.通过在极靴两侧侧面均设有 1个或 1个以上的若干个台阶,所述的台阶与 其相邻极靴上的台阶对应配合,形成弯折形状的槽口,在不影响电机基本性能的 同时, 大大了消除了齿槽转矩, 与常规的电机相比, 齿槽转矩至少可降低 20%;
2. 采用定子单元拼接式的定子, 不仅极大方便了绕线工序, 同时定子线圈 的槽满率可达到 90%或以上;此外定子单元拼接式的定子结构使得定子槽口可以 实现小槽口设计, 在消除齿槽效果上接近于现有的无槽口电机定子的效果,但相 对于现有的无槽口电机定子, 本发明的制造工艺简单, 制造成本低, 非常适合在 生产中进行推广应用。
附图说明
附图 1是本发明一种实施例的结构示意图;
附图 2是附图 1的部分分解结构示意图;
附图 3是附图 1的定子铁芯结构示意图; 附图 4是附图 2中定子单元的结构示意图;
附图 5是附图 4中定子铁芯单元的结构示意图;
附图 6是附图 2中 A处结构示意图;
附图 7是附图 2中 B处结构示意图;
附图 8是附图 3中 C处结构示意图;
附图标记: 定子铁芯 100、 定子线圈 200、绝缘骨架 300、 定子齿 110、极靴 120、 定子槽 130、 台阶 121、 槽口 131、 定子冲片 111、 111-1、 111-2、 定子铁芯单元 100a, 定子线圈单元 200a、 绝缘骨架单元 300a、 定子冲片单元 llla、 l lla-l、 Il ia- 2、 凹槽 112、 凸起 113。 具体实施方式
实施例 1、 一种低齿槽转矩电机定子, 包括定子铁芯 100、 定子线圈 200, 其中: 定子铁芯 100内圆周一体延伸出间隔分布的多个定子齿 110, 定子齿 110 末端设有极靴 120, 各相邻定子齿 110之间形成定子槽 130, 定子线圈 200置于 定子槽 130内, 所述的每个极靴 120两侧侧面均设有 1个台阶 121, 所述的台阶 121与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131。
实施例 2、 一种低齿槽转矩电机定子, 包括定子铁芯 100、 定子线圈 200, 其中: 所述的每个极靴 120两侧侧面均设有 2个间隔分布的台阶 121, 所述的台 阶 121与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131, 其 余同实施例 1。
实施例 3、 一种低齿槽转矩电机定子, 包括定子铁芯 100、 定子线圈 200, 其中: 所述的每个极靴 120两侧侧面均设有 3个间隔分布的台阶 121 , 所述的台 阶 121与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131, 其 余同实施例 1。
实施例 4、 一种低齿槽转矩电机定子, 包括定子铁芯 100、 定子线圈 200, 其中: 所述的每个极靴 120两侧侧面均设有 4个间隔分布的台阶 121, 所述的台 阶 121与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131, 其 余同实施例 1。
实施例 5、 一种低齿槽转矩电机定子, 包括定子铁芯 100、 定子线圈 200, 其中: 所述的每个极靴 120两侧侧面均设有 5个间隔分布的台阶 121, 所述的台 阶 121与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131, 其 余同实施例 1。
实施例 6、 一种低齿槽转矩电机定子, 其中: 所述的对应配合的台阶 121的 高度不相等, 其余同实施例 1-5中的任意一种实施例。
实施例 7、 一种低齿槽转矩电机定子, 其中: 所述的定子铁芯 100上设有绝 缘骨架 300, 所述的定子线圈 200置于定子槽 130内是通过绝缘骨架 300将定子 线圈 200嵌绕在定子齿 110上得到的, 其余同实施例 1-6中的任意一种实施例。
实施例 8、 一种低齿槽转矩电机定子, 其中: 所述的定子铁芯 100由定子冲 片 111叠压而成, 定子冲片 111内圆周一体延伸出间隔分布的多个定子齿 110, 定子齿 110末端设有极靴 120, 所述的台阶 121是由具有不同极靴宽度的定子冲 片 111-1、 111-2叠压后形成的, 其余同实施例 1-7中的任意一种实施例。
实施例 9、 一种低齿槽转矩电机定子, 其中: 所述的定子包括若干个定子单 元, 定子单元与定子单元之间通过拼接而成, 定子单元两侧均设有拼接结构, 所 述的拼接结构是指定子单元一侧设有与其相邻定子单元拼接的凸起 113, 另一侧 设有与其相邻定子单元拼接的凹槽 112,其余同实施例 1-8中的任意一种实施例。
实施例 10、 一种低齿槽转矩电机定子, 其中: 所述的定子单元包括定子铁 芯单元 100a、定子线圈单元 200a, 定子铁芯单元 100a内圆周一体延伸出 1个定 子齿 110,定子齿 110末端设有极靴 120,各相邻定子齿 110之间形成定子槽 130, 定子线圈单元 200a置于定子槽 130内, 其余同实施例 9。
实施例 11、 一种低齿槽转矩电机定子, 其中: 所述的定子铁芯单元 100a内 圆周一体延伸出 2个间隔分布的定子齿 110, 其余同实施例 10。
实施例 12、 一种低齿槽转矩电机定子, 其中: 所述的拼接结构是指定子铁 芯单元 100a—侧设有与相邻定子铁芯单元 100a拼接的凸起 113, 另一侧设有与 相邻定子铁芯单元 100a拼接的凹槽 112, 其余同实施例 10或实施例 11。
实施例 13、 一种低齿槽转矩电机定子, 其中: 所述的定子铁芯单元 100a上 设有绝缘骨架单元 300a, 所述的定子线圈单元 200a置于定子槽 130内是通过绝 缘骨架单元 300a将定子线圈单元 200a嵌绕在定子齿 110上得到的,其余同实施 例 10或实施例 11或实施例 12。 实施例 14、 一种低齿槽转矩电机定子, 其中: 所述的定子铁芯单元 100a由 定子冲片单元 111a叠压而成,定子冲片单元 111a内圆周一体延伸出 1个定子齿 110, 定子齿 110末端设有极靴 120, 所述的台阶 121是由具有不同极靴宽度的 定子冲片单元 l l la-l、 111a- 2叠压后形成的, 其余同实施例 10-13中的任意一 种实施例。
实施例 15、 一种低齿槽转矩电机定子, 其中: 所述的定子冲片单元 111a内 圆周一体延伸出 2个间隔分布的定子齿 110, 其余同实施例 14。
实施例 16、 一种低齿槽转矩电机定子的装配方法, 其中: 其操作步骤为:
( 1 ) 将具有不同极靴宽度的定子冲片 111叠压成两侧侧面具有 1个或 1个 以上的若干个台阶 121的定子铁芯 100, 所述的台阶 121与其相邻极靴 120上的 台阶 121对应配合, 形成弯折形状的槽口 131;
(2) 将定子线圈 200设置在定子槽 130内, 完成定子装配。 其余同实施例 1-15中的任意一种实施例。
实施例 17、 一种低齿槽转矩电机定子的装配方法, 其中: 其操作步骤为:
( 1 )将具有不同极靴宽度的定子冲片单元 111a叠压成两侧侧面具有 1个或 1 个以上的若干个台阶的定子铁芯单元 100a, 所述的台阶 121 与其相邻极靴 120上的台阶 121对应配合, 形成弯折形状的槽口 131 ;
(2) 将定子线圈单元 200a设置在定子槽 130内得到定子单元;
(3) 将定子单元与定子单元进行拼接得到定子, 完成定子装配。 其余同实 施例 16。
实施例 18、 一种低齿槽转矩电机定子的装配方法, 其中: 在第 (2) 步骤前 增加步骤: 在定子铁芯 100上安装绝缘骨架 300, 通过绝缘骨架 300将定子线圈 200嵌绕在定子齿 110上实现将定子线圈 200设置在定子槽 130内, 其余同实施 例 16。
实施例 19、 一种低齿槽转矩电机定子的装配方法, 其中: 在第 (2) 步骤前 增加步骤: 在定子铁芯单元 100a上安装绝缘骨架单元 300a, 通过绝缘骨架单元 300a将定子线圈单元 200a嵌绕在定子齿 110上实现将定子线圈单元 200a设置 在定子槽 130内。 其余同实施例 17。
本发明并不局限于上述具体的实施例,它还有很多变化或改型,如台阶或定 子齿个数的变化等, 都不脱离本发明的实质精神和范围,均属于本发明的保护范 围。

Claims

权 利 要 求 书
1、 一种低齿槽转矩电机定子, 包括定子铁芯 (100)、 定子线圈 (200), 其 特征在于: 定子铁芯 (100) 内圆周一体延伸出间隔分布的多个定子齿 (110), 定子齿(110)末端设有极靴(120),各相邻定子齿(110)之间形成定子槽(130), 定子线圈 (200) 置于定子槽 (130) 内, 所述的每个极靴 (120) 两侧侧面均设 有 1个或 1个以上的若干个台阶(121 ),所述的台阶(121 )与其相邻极靴(120) 上的台阶 (121 ) 对应配合, 形成弯折形状的槽口 (131 )。
2、 如权利要求 1所述的一种低齿槽转矩电机定子, 其特征在于: 所述的对 应配合的台阶 (121 ) 的高度不相等。
3、 如权利要求 1或 2所述的一种低齿槽转矩电机定子, 其特征在于: 所述 的定子铁芯(100)上设有绝缘骨架(300), 所述的定子线圈 (200)置于定子槽
( 130) 内是通过绝缘骨架(300)将定子线圈 (200)嵌绕在定子齿(110)上得 到的。
4、 如权利要求 1或 2所述的一种低齿槽转矩电机定子, 其特征在于: 所述 的定子铁芯 (100) 由定子冲片 (111 ) 叠压而成, 定子冲片 (111 ) 内圆周一体 延伸出间隔分布的多个定子齿 (110), 定子齿 (110) 末端设有极靴 (120), 所 述的台阶 (121 ) 是由具有不同极靴宽度的定子冲片 (111-1、 111-2) 叠压后形 成的。
5、 如权利要求 1或 2所述的一种低齿槽转矩电机定子, 其特征在于: 所述 的定子包括若干个定子单元,定子单元与定子单元之间通过拼接而成,定子单元 两侧均设有拼接结构。
6、 如权利要求 5所述的一种低齿槽转矩电机定子, 其特征在于: 所述的定 子单元包括定子铁芯单元(100a)、定子线圈单元(200a), 定子铁芯单元(100a) 内圆周一体延伸出 1个或间隔分布的多个定子齿 (110), 定子齿 (110) 末端设 有极靴(120),各相邻定子齿(110)之间形成定子槽(130),定子线圈单元(200a) 置于定子槽 (130) 内。
7、 如权利要求 6所述的一种低齿槽转矩电机定子, 其特征在于: 所述的定 子铁芯单元 (100a) 由定子冲片单元 (111a) 叠压而成, 定子冲片单元 (111a) 内圆周一体延伸出 1个或间隔分布的多个定子齿 (110), 定子齿 (110) 末端设 有极靴(120),所述的台阶(121 )是由具有不同极靴宽度的定子冲片单元(ma-l、 111a- 2) 叠压后形成的。
8、 一种如权利要求 1-7任意所述的低齿槽转矩电机定子的装配方法, 其特 征在于: 其操作步骤为:
( 1 )将具有不同极靴宽度的定子冲片 (111 )叠压成两侧侧面具有 1个或 1 个以上的若干个台阶(121 ) 的定子铁芯(100), 所述的台阶(121 ) 与其相邻极 靴 (120) 上的台阶 (121 ) 对应配合, 形成弯折形状的槽口 (131 );
(2) 将定子线圈 (200) 设置在定子槽 (130) 内, 完成定子装配。
9、 如权利要求 8所述的低齿槽转矩电机定子的装配方法, 其特征在于: 其 操作步骤为:
( 1 ) 将具有不同极靴宽度的定子冲片单元 (111a) 叠压成两侧侧面具有 1 个或 1个以上的若干个台阶的定子铁芯单元(100a), 所述的台阶(121 )与其 相邻极靴 (120) 上的台阶 (121 ) 对应配合, 形成弯折形状的槽口 (131 );
(2) 将定子线圈单元 (200a) 设置在定子槽 (130) 内得到定子单元;
(3) 将定子单元与定子单元进行拼接得到定子, 完成定子装配。
10、如权利要求 8所述的低齿槽转矩电机定子的装配方法, 其特征在于: 在 第 (2)步骤前增加步骤: 在定子铁芯(100)上安装绝缘骨架(300), 通过绝缘 骨架 (300) 将定子线圈 (200) 嵌绕在定子齿 (110) 上实现将定子线圈 (200) 设置在定子槽 (130) 内。
PCT/CN2012/001461 2012-03-03 2012-10-29 一种低齿槽转矩电机定子及其装配方法 WO2013131223A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109412284A (zh) * 2018-11-20 2019-03-01 卧龙电气集团股份有限公司 一种铰链式定子及其成圆方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102545416A (zh) * 2012-03-03 2012-07-04 常州新亚电机有限公司 一种低齿槽转矩电机定子及其装配方法
CN102891546A (zh) * 2012-10-24 2013-01-23 浙江联宜电机股份有限公司 具有不对称齿靴的定子铁芯结构
CN104184287A (zh) * 2013-05-28 2014-12-03 深圳市长锦成电器有限公司 突极式绕线型感应电机及其制造方法
CN106571700A (zh) * 2016-10-26 2017-04-19 珠海格力电器股份有限公司 一种定子铁芯结构、具有其的定子及电机
CN106451985A (zh) * 2016-10-28 2017-02-22 杭州智酷电气科技有限公司 定子结构及无刷直流电机
CN108233562B (zh) * 2016-12-15 2020-04-24 姚常勤 一种电机定子模块、电机定子和径向磁通电机
CN108233556B (zh) * 2016-12-15 2020-03-27 姚常勤 一种具有优化磁路的定子及电机
CN108183563A (zh) * 2017-12-31 2018-06-19 深圳红河马智能数字动力技术有限公司 分体定子铁芯及其绕组的电机
CN111769697B (zh) * 2020-07-08 2022-04-05 东南大学盐城新能源汽车研究院 一种电励磁磁通切换电机转矩脉动和感应电压削弱方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010166810A (ja) * 2010-03-26 2010-07-29 Mitsubishi Electric Corp 回転電機の固定子
JP2010263786A (ja) * 2010-08-23 2010-11-18 Mitsubishi Electric Corp 回転電機の製造方法
CN102545416A (zh) * 2012-03-03 2012-07-04 常州新亚电机有限公司 一种低齿槽转矩电机定子及其装配方法
CN202475049U (zh) * 2012-03-03 2012-10-03 常州新亚电机有限公司 一种低齿槽转矩电机定子

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10145991A (ja) * 1996-11-07 1998-05-29 Shibaura Eng Works Co Ltd モータの固定子およびモータフレーム
EP1624553B1 (en) * 1997-09-08 2012-02-08 Panasonic Corporation Permanent magnet synchronous motor
DE102004047275A1 (de) * 2004-09-24 2006-04-06 Siemens Ag Magnetblock für ein Magnetschwebebahn-System und Verfahren zu seinem Herstellen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010166810A (ja) * 2010-03-26 2010-07-29 Mitsubishi Electric Corp 回転電機の固定子
JP2010263786A (ja) * 2010-08-23 2010-11-18 Mitsubishi Electric Corp 回転電機の製造方法
CN102545416A (zh) * 2012-03-03 2012-07-04 常州新亚电机有限公司 一种低齿槽转矩电机定子及其装配方法
CN202475049U (zh) * 2012-03-03 2012-10-03 常州新亚电机有限公司 一种低齿槽转矩电机定子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109412284A (zh) * 2018-11-20 2019-03-01 卧龙电气集团股份有限公司 一种铰链式定子及其成圆方法

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