WO2022170755A1 - 一种电机定子冲片及应用其的电机 - Google Patents

一种电机定子冲片及应用其的电机 Download PDF

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Publication number
WO2022170755A1
WO2022170755A1 PCT/CN2021/115560 CN2021115560W WO2022170755A1 WO 2022170755 A1 WO2022170755 A1 WO 2022170755A1 CN 2021115560 W CN2021115560 W CN 2021115560W WO 2022170755 A1 WO2022170755 A1 WO 2022170755A1
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WIPO (PCT)
Prior art keywords
stator
rotor
tooth
range
motor
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PCT/CN2021/115560
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English (en)
French (fr)
Inventor
张善儿
梁三增
战会军
贾洪雨
董岷
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中山大洋电机股份有限公司
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Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Priority to MX2023009310A priority Critical patent/MX2023009310A/es
Publication of WO2022170755A1 publication Critical patent/WO2022170755A1/zh
Priority to US18/231,755 priority patent/US20230387733A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/12—Asynchronous induction motors for multi-phase current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the utility model relates to a stator punching piece of a motor and a motor using the same.
  • a stator through hole is arranged in the middle of the traditional stator punching piece, and the stator punching piece includes an annular yoke and a number of stator teeth that protrude inward from the annular yoke and are evenly distributed.
  • Wire slot, the stator tooth includes a vertical tooth root and a pole shoe located at the end of the tooth root. The thickness of the pole shoe is too thin.
  • the rotor core of the current motor is formed by stacking several rotor punching pieces. There are several rotor slots evenly distributed on the periphery of the rotor punching piece. Conductors are installed in the rotor slot. The coordination between the wire slot and the conductor of the rotor punching piece is unreasonable, and the following problems generally exist:
  • the purpose of the utility model is to provide a motor stator punching piece with simple structure, good manufacturability, ensuring magnetic circuit balance and moderate magnetic flux density, which can improve the working efficiency of the motor, reduce the noise of the motor, and prolong the service life of the motor.
  • the motor to which it is applied is to provide a motor stator punching piece with simple structure, good manufacturability, ensuring magnetic circuit balance and moderate magnetic flux density, which can improve the working efficiency of the motor, reduce the noise of the motor, and prolong the service life of the motor.
  • the first object of the present utility model is to provide a motor stator punch, the center hole is arranged in the middle of the stator punch, and the stator punch includes an annular yoke and a plurality of stator teeth that protrude from the inner side of the annular yoke and are evenly distributed , a wire slot is formed between two adjacent stator teeth;
  • the stator teeth include a vertical tooth root and a pole shoe at the end of the tooth root, and the outer diameter D1 of the stator punch is 61.75mm to 68.25mm mm
  • the inner diameter D2 of the central hole is in the range of 31.6mm to 35mm
  • the groove bottoms of the grooving grooves are evenly distributed along the circumference and are tangent to a circle
  • the diameter D3 of the tangent circle is in the range of 54.72mm to 60.48mm
  • the tooth width L1 of the stator teeth is in the range of 4.75mm to 5.25mm
  • the thickness H1 of the pole shoe is in
  • the tooth width L1 of the stator teeth is 5 mm, and the thickness H1 of the pole shoe is in the range of 1.5 mm to 2.25 mm.
  • the minimum thickness H2 of the annular yoke is in the range of 3.5mm to 3.9mm.
  • the outer diameter D1 of the stator punch is 65mm
  • the inner diameter D2 of the central hole is 33.3mm
  • the diameter D3 of the tangent circle is 57.6mm
  • the thickness H1 of the pole shoe is 2.15mm
  • the minimum thickness H2 of the annular yoke is is 3.7mm.
  • the slot bottom of the wire insertion slot includes a circular arc segment and a straight line segment tangent to both ends of the circular arc segment respectively, and the straight line segment is perpendicular to the tooth edges of the tooth roots of adjacent stator tooth parts.
  • the second object of the present utility model is to provide a motor including a rotating shaft, a rotor assembly, a stator assembly and a casing assembly.
  • the rotor assembly is installed on the rotating shaft, the stator assembly is nested and installed in the casing assembly, and the rotor assembly is sleeved on the stator assembly.
  • the stator assembly includes a stator iron core, end insulation and coil windings, and the stator iron core is formed by laminating a number of stator punching sheets;
  • the rotor assembly includes a rotor iron core, which is formed by laminating a number of rotor punching sheets, and the rotor There is a shaft hole in the middle of the punching piece, which can accommodate the rotating shaft.
  • stator punching piece is a kind of motor stator punching piece as mentioned above, the number of the wire insertion slot of the stator punching piece is 8, the number of the wire insertion slot of the stator punching piece is the same as that of the rotor punching piece of the rotor punching piece.
  • the ratio is in the range of 8:13 to 8:24.
  • the ratio of the number of wire insertion grooves of the stator blanks to the number of rotor grooves of the rotor blanks is 8:15.
  • the diameter D4 of the rotor punching piece is in the range of 31.6 mm to 35 mm
  • the diameter D5 of the shaft hole is in the range of 7.6 mm to 8.4 mm
  • the tooth width L2 of the rotor teeth is in the range of 2.328 mm to 2.573 mm.
  • the diameter D4 of the rotor punching piece is 33.3 mm
  • the diameter D5 of the shaft hole is 8 mm
  • the tooth width L2 of the rotor tooth portion is 2.45 mm.
  • a motor stator punch a center hole is arranged in the middle of the stator punch, the stator punch includes an annular yoke and a stator tooth, and a wire slot is formed between two adjacent stator teeth; the stator tooth includes a vertical The tooth root part and the pole shoe part located at the end of the tooth root part, the outer diameter D1 of the stator punch is in the range of 61.75mm to 68.25mm, the inner diameter D2 of the center hole is in the range of 31.6mm to 35mm.
  • the groove bottoms are evenly distributed along the circumference and are tangent to a circle, the diameter D3 of the tangent circle is in the range of 54.72mm to 60.48mm, the tooth width L1 of the stator teeth is in the range of 4.75mm to 5.25mm, and the thickness of the pole shoe H1 is in the range of 0.3*L1 to 0.45*L1, the number of stator teeth is 8, and the number of wire insertion slots is 8.
  • the structure is simple and the manufacturability is good.
  • the size structure of the stator core is optimized, and the poles are thickened.
  • the thickness of the shoe part makes the magnetic flux density distribution of each part of the stator core more uniform and reduces the local magnetic saturation phenomenon, thereby improving the working efficiency of the motor and prolonging the service life of the motor.
  • a motor comprising a rotor assembly and a stator assembly, the rotor assembly is sleeved inside the stator assembly;
  • the stator assembly includes a stator iron core, end insulation and coil windings, and the stator iron core is formed by laminating a plurality of stator punching sheets;
  • the rotor The component includes a rotor iron core, which is formed by laminating a number of rotor punching pieces. Several rotor slots are evenly distributed on the edge of the rotor punching piece. Conductors are installed in the rotor slots, and the wire slot of the stator punching pieces is installed.
  • the number is 8, and the ratio of the number of grooves of the stator punch to the number of rotor grooves of the rotor is in the range of 8:13 to 8:24.
  • the structure is simple, and the grooves of the stator punch and the rotor are The ratio of the rotor slots of the punching sheet is reasonable, which can improve the working efficiency of the motor, reduce the noise of the motor, and prolong the service life of the motor. , the number of winding machines across slots is reduced by half, which can improve production efficiency and reduce motor costs on the original basis.
  • Fig. 1 is the structural representation of the stator punch sheet provided for the first embodiment of the present utility model
  • Fig. 2 is the enlarged structural representation of A part provided for Fig. 1;
  • Embodiment 3 is a schematic diagram of the internal mechanism of the motor provided by Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a rotor punch provided by Embodiment 2 of the present utility model
  • FIG. 5 is a schematic structural diagram of the installation and cooperation of the stator punch and the rotor punch provided by the second embodiment of the present utility model.
  • the present embodiment provides a motor stator punch.
  • a central hole is provided in the middle of the stator punch 1 .
  • the stator punch 1 includes an annular yoke 11 and an inner surface extending from the annular yoke 11 .
  • the outer diameter D1 of the stator punch 1 is in the range of 61.75mm to 68.25mm
  • the inner diameter D2 of the central hole is in the range of 31.6mm to 35mm
  • the groove bottoms of the wire insertion grooves 2 are evenly distributed along the circumference and are in line with a circle.
  • the diameter D3 of the tangent circle is in the range of 54.72mm to 60.48mm
  • the tooth width L1 of the stator tooth portion 12 is in the range of 4.75mm to 5.25mmmm
  • the thickness H1 of the pole shoe portion 122 is in the range of 0.3*L1 to 0.45* In the range of L1, the number of stator teeth 12 is 8, and the number of wire insertion slots 2 is 8.
  • the structure is simple and the manufacturability is good.
  • the size and structure of the stator core 51 are optimized, and the thickness of the pole shoe 122 is thickened. , so that the magnetic flux density distribution of each part of the stator core 51 is more uniform, and the local magnetic saturation phenomenon is reduced, thereby improving the working efficiency of the motor and prolonging the service life of the motor.
  • the tooth width L1 of the stator tooth portion 12 is 5 mm, and the thickness H1 of the pole shoe portion 122 is in the range of 1.5 mm to 2.25 mm.
  • the minimum thickness H2 of the annular yoke 11 is in the range of 3.5 mm to 3.9 mm.
  • the outer diameter D1 of the stator punch 1 is 65 mm
  • the inner diameter D2 of the central hole is 33.3 mm
  • the diameter D3 of the tangent circle is 57.6 mm
  • the thickness H1 of the pole shoe 122 is 2.15 mm
  • the thickness of the annular yoke 11 is 2.15 mm.
  • the minimum thickness H2 is 3.7mm.
  • the slot bottom of the insert slot 2 includes a circular arc segment 21 and a straight line segment 22 tangent to both ends of the circular arc segment 21.
  • the straight segment 22 is perpendicular to the tooth edge 1211 of the tooth root portion 121 of the adjacent stator tooth portion 12, which is convenient for Winding.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • this embodiment provides a motor including a rotating shaft 3 , a rotor assembly 4 , a stator assembly 5 and a housing assembly 6 .
  • the rotor assembly 4 is installed on the rotating shaft 3 , and the stator assembly 5 is nested and installed Inside the housing assembly 6, the rotor assembly 4 is sleeved inside the stator assembly 5;
  • the stator assembly 5 includes a stator core 51, end insulation 52 and coil windings 53, and the stator core 51 is formed by laminating a plurality of stator punching sheets 1;
  • the rotor assembly 4 includes a rotor iron core.
  • the rotor iron core is formed by stacking a plurality of rotor punching pieces 7.
  • the rotor punching piece 7 is provided with a shaft hole 71 that can accommodate the rotating shaft 3 to pass through.
  • a shaft hole 71 that can accommodate the rotating shaft 3 to pass through.
  • the conductors 8 are installed in the rotor slots 72, a rotor tooth 73 is formed between two adjacent rotor slots 72, and the stator punch 1 is a motor described in the first embodiment.
  • the number of slot 2 of stator punch 1 is 8, and the ratio of the number of slot 2 of stator punch 1 to the number of rotor slots 72 of rotor punch 7 is 8:13 to 8: 24, the structure is simple, and the matching ratio of the slot 2 of the stator punch 1 and the rotor slot 72 of the rotor punch 7 is reasonable, which can improve the working efficiency of the motor, reduce the noise of the motor, and prolong the service life of the motor.
  • the number of wire grooves 2 is 8.
  • the processing technology of using 8 wire insertion grooves 2 is relatively simple.
  • the number of cross grooves of the winding machine is reduced by half, which can improve the production efficiency and reduce the cost of the motor on the original basis.
  • the ratio of the number of the wire insertion slots 2 of the stator punch 1 to the number of the rotor slots 72 of the rotor punch 7 is 8:15, the design is reasonable, and the relationship between the wire insertion slots 2 of the stator core 51 and the rotor core is optimized.
  • the matching ratio of the rotor slots 72 ensures that the magnetic flux density distribution of the stator punch 1 and the rotor punch 7 in different cycles is uniform, reduces the local magnetic saturation phenomenon, reduces the motor noise, thereby improving the working efficiency of the motor and prolonging the use of the motor life.
  • the diameter D4 of the rotor punching piece 7 is in the range of 31.6mm to 35mm
  • the diameter D5 of the shaft hole 71 is in the range of 7.6mm to 8.4mm
  • the tooth width L2 of the rotor tooth portion 73 is in the range of 2.328mm to 2.573mm, which optimizes the rotor
  • the size structure of the punching piece 7 makes the magnetic flux density distribution of each part of the rotor punching piece 7 more uniform and reduces the local magnetic saturation phenomenon, thereby improving the working efficiency of the motor and prolonging the service life of the motor.
  • the diameter D4 of the rotor punching piece 7 is 33.3 mm
  • the diameter D5 of the shaft hole 71 is 8 mm
  • the tooth width L2 of the rotor tooth portion 73 is 2.45 mm.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

本实用新型公开了一种电机定子冲片及应用其的电机，定子冲片中间设置有中心孔，定子冲片包括环形轭部和定子齿部，相邻两个定子齿部之间形成嵌线槽；定子齿部包括齿根部和位于齿根部端部的极靴部，定子冲片的外圆直径D1为61.75mm至68.25mm的范围，中心孔的内径D2为31.6mm至35mm的范围，嵌线槽的槽底沿圆周均布并且与一圆相切，该相切圆的直径D3为54.72mm至60.48mm的范围，定子齿部的齿宽L1为4.75mm至5.25mm的范围，极靴部的厚度H1为0.3*L1至0.45*L1的范围，定子齿部的数量是8个，嵌线槽的数量是8个，该结构简单、工艺性好，优化了定子铁芯的尺寸结构，加厚极靴部的厚度，使定子铁芯各部分的磁通密度分布更加均匀、减少局部磁饱和现象，从而提高电机的工作效率、延长电机的使用寿命。

Description

一种电机定子冲片及应用其的电机 技术领域：
本实用新型涉及一种电机定子冲片及应用其的电机。
背景技术：
在世界能效升级的背景下，小功率负载如抽气扇、排气扇电机提出需要满足能源之星及低噪音的双重要求。为达到此目的，风机整机设计上需要降低电机的转动速度来达到降低风机噪音，电机的设计上需要同步配合增加电机极数来达到电机的转速下降，噪音降低，电机的额定点效率提升的目的。而定子冲片及转子冲片的参数优化设计对于电机整体的性能优化有重要的作用。
目前，传统的定子冲片中间设置有定子通孔，定子冲片包括环形轭部和从环形轭部往内伸出且均匀分布的若干个定子齿部，相邻两个定子齿部之间形成嵌线槽，定子齿部包括竖直的齿根部和位于齿根部的端部位置的极靴部，该极靴部的厚度过薄，经过磁路计算分析，现有的定子冲片结构存在一些不足：
1)定子冲片环形轭部和定子齿部的磁密分布差异较大，铁磁利用率低，造成电机效率下降；
2)定子冲片的利用率不高，造成成本升高，同时局部磁通密度过饱、温度升高、电机噪音大，降低电机效率。
目前的电机的转子铁芯由若干转子冲片叠压而成，在转子冲片的边缘上周向均匀分布有若干个转子槽，转子槽里面安装导电体，但是目前的电机定子冲片的嵌线槽与转子冲片的导电体的配合不合理，普遍存在如下几个问题：
1)定子铁芯的嵌线槽与转子铁芯的转子槽的配合比不合理，造成电机工作效率低下、降低电机寿命；
2)定子冲片和转子冲片在不同周期下的磁通密度分布不均，影响电机的效率和电磁噪音，降低电机寿命。
发明内容：
本实用新型的目的是提供一种该结构简单、工艺性好、保证磁路平衡、磁通密度适中，可提高电机的工作效率、减小电机噪音、延长电机的使用寿命的电机定子冲片及应用其的电机。
本实用新型的目的是通过下述技术方案予以实现的。
本实用新型的第一个目的是提供一种电机定子冲片，定子冲片中间设置有中心孔，定子冲片包括环形轭部和从环形轭部内侧面伸出且均匀分布的若干个定子齿部，相邻两个定子齿部之间形成嵌线槽；定子齿部包括竖直的齿根部和位于齿根部的端部位置的极靴部，定子冲片的外圆直径D1为61.75mm至68.25mm的范围，中心孔的内径D2为31.6mm至35mm的范围，嵌线槽的槽底沿圆周均布并且与一圆相切，该相切圆的直径D3为54.72mm至60.48mm的范围，定子齿部的齿宽L1为4.75mm至5.25mm的范围，极靴部的厚度H1为0.3*L1至0.45*L1的范围，定子齿部的数量是8个，嵌线槽的数量是8个。
优选地，定子齿部的齿宽L1为5mm，极靴部的厚度H1为1.5mm至2.25mm的范围。
优选地，环形轭部的最小厚度H2为3.5mm至3.9mm的范围。
优选地，定子冲片的外圆直径D1为65mm，中心孔的内径D2为33.3mm，相切圆的直径D3为57.6mm，极靴部的厚度H1为2.15mm，环形轭部的最小厚度H2为3.7mm。
优选地，嵌线槽的槽底包括圆弧段和分别相切于圆弧段两端的直线段，该直线段与相邻定子齿部的齿根部的齿边垂直设置。
本实用新型的第二个目的是提供一种电机，包括转轴、转子组件、定子组件以及外壳组件，转子组件安装在转轴上，定子组件嵌套安装在外壳组件里面，转子组件套设于定子组件里面；定子组件包括定子铁芯、端部绝缘和线圈绕组，定子铁芯由若干定子冲片叠压而成；转子组件包括转子铁芯，转子铁芯由若干 转子冲片叠压而成，转子冲片中间设有可容转轴穿过的轴孔，在转子冲片的边缘上周向均匀分布有若干个转子槽，转子槽里面安装导电体，相邻两个转子槽之间形成一转子齿部，所述定子冲片如上述所述的一种电机定子冲片，定子冲片的嵌线槽的数量是8个，定子冲片的嵌线槽的数目与转子冲片的转子槽的数目之比为8：13至8：24的范围。
优选地，定子冲片的嵌线槽的数目与转子冲片的转子槽的数目之比是8：15。
优选地，转子冲片的直径D4为31.6mm至35mm的范围，轴孔的直径D5为7.6mm至8.4mm的范围，转子齿部的齿宽L2为2.328mm至2.573mm的范围。
优选地，转子冲片的直径D4为33.3mm，轴孔的直径D5为8mm，转子齿部的齿宽L2为2.45mm。
本实用新型与现有技术相比，具有如下效果：
1)一种电机定子冲片，定子冲片中间设置有中心孔，定子冲片包括环形轭部和定子齿部，相邻两个定子齿部之间形成嵌线槽；定子齿部包括竖直的齿根部和位于齿根部的端部位置的极靴部，定子冲片的外圆直径D1为61.75mm至68.25mm的范围，中心孔的内径D2为31.6mm至35mm的范围，嵌线槽的槽底沿圆周均布并且与一圆相切，该相切圆的直径D3为54.72mm至60.48mm的范围，定子齿部的齿宽L1为4.75mm至5.25mm的范围，极靴部的厚度H1为0.3*L1至0.45*L1的范围，定子齿部的数量是8个，嵌线槽的数量是8个，该结构简单、工艺性好，优化了定子铁芯的尺寸结构，加厚极靴部的厚度，使定子铁芯各部分的磁通密度分布更加均匀、减少局部磁饱和现象，从而提高电机的工作效率、延长电机的使用寿命。
2)一种电机，包括转子组件和定子组件，转子组件套设于定子组件里面；定子组件包括定子铁芯、端部绝缘和线圈绕组，定子铁芯由若干定子冲片叠压而成；转子组件包括转子铁芯，转子铁芯由若干转子冲片叠压而成，在转子冲片的边缘上周向均匀分布有若干个转子槽，转子槽里面安装导电体，定子冲片 的嵌线槽的数量是8个，定子冲片的嵌线槽的数目与转子冲片的转子槽的数目之比为8：13至8：24的范围，该结构简单，定子冲片的嵌线槽与转子冲片的转子槽的配合比合理，可以提高电机的工作效率，减小电机噪音，延长电机的使用寿命，嵌线槽的数量是8个，采用8个嵌线槽冲片的加工工艺相对简单，绕线机跨槽个数减少一半，可以提高生产效率，电机成本可在原来的基础得到下降。
3)本实用新型的其它优点在实施例部分展开详细描述。
附图说明：
图1是为本实用新型实施例一提供的定子冲片的结构示意图；
图2是为图1提供的A部分的放大结构示意图；
图3是为本实用新型实施例二提供的电机内部机构示意图；
图4是为本实用新型实施例二提供的转子冲片的结构示意图；
图5是为本实用新型实施例二提供的定子冲片和转子冲片安装配合的结构示意图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一：
如图1和图2所示，本实施例提供的是一种电机定子冲片，定子冲片1中间设置有中心孔，定子冲片1包括环形轭部11和从环形轭部11内侧面伸出且均匀分布的若干个定子齿部12，相邻两个定子齿部12之间形成嵌线槽2；定子齿部12包括竖直的齿根部121和位于齿根部121的端部位置的极靴部122，定子冲片1的外圆直径D1为61.75mm至68.25mm的范围，中心孔的内径D2为31.6mm至35mm的范围，嵌线槽2的槽底沿圆周均布并且与一圆相切，该相切圆的直径D3为54.72mm至60.48mm的范围，定子齿部12的齿宽L1为4.75mm至5.25mmmm 的范围，极靴部122的厚度H1为0.3*L1至0.45*L1的范围，定子齿部12的数量是8个，嵌线槽2的数量是8个，该结构简单、工艺性好，优化了定子铁芯51的尺寸结构，加厚极靴部122的厚度，使定子铁芯51各部分的磁通密度分布更加均匀、减少局部磁饱和现象，从而提高电机的工作效率、延长电机的使用寿命。
优选地，定子齿部12的齿宽L1为5mm，极靴部122的厚度H1为1.5mm至2.25mm的范围。
优选地，环形轭部11的最小厚度H2为3.5mm至3.9mm的范围。
具体地，定子冲片1的外圆直径D1为65mm，中心孔的内径D2为33.3mm，相切圆的直径D3为57.6mm，极靴部122的厚度H1为2.15mm，环形轭部11的最小厚度H2为3.7mm。
嵌线槽2的槽底包括圆弧段21和分别相切于圆弧段21两端的直线段22，该直线段22与相邻定子齿部12的齿根部121的齿边1211垂直设置，方便绕线。
实施例二：
如图3至图5所示，本实施例提供的是一种电机，包括转轴3、转子组件4、定子组件5以及外壳组件6，转子组件4安装在转轴3上，定子组件5嵌套安装在外壳组件6里面，转子组件4套设于定子组件5里面；定子组件5包括定子铁芯51、端部绝缘52和线圈绕组53，定子铁芯51由若干定子冲片1叠压而成；转子组件4包括转子铁芯，转子铁芯由若干转子冲片7叠压而成，转子冲片7中间设有可容转轴3穿过的轴孔71，在转子冲片7的边缘上周向均匀分布有若干个转子槽72，转子槽72里面安装导电体8，相邻两个转子槽72之间形成一转子齿部73，所述定子冲片1如实施例一所述的一种电机定子冲片，定子冲片1的嵌线槽2的数量是8个，定子冲片1的嵌线槽2的数目与转子冲片7的转子槽72的数目之比为8：13至8：24的范围，该结构简单，定子冲片1的嵌线槽2与转子冲片7的转子槽72的配合比合理，可以提高电机的工作效率，减小电 机噪音，延长电机的使用寿命，嵌线槽2的数量是8个，采用8个嵌线槽2冲片的加工工艺相对简单，绕线机跨槽个数减少一半，可以提高生产效率，电机成本可在原来的基础得到下降。
优选地，定子冲片1的嵌线槽2的数目与转子冲片7的转子槽72的数目之比是8：15，设计合理，优化定子铁芯51的嵌线槽2与转子铁芯的转子槽72的配合比，保证定子冲片1和转子冲片7在不同周期下的磁通密度分布均匀，减少局部磁饱和现象，减小电机噪音，从而提高电机的工作效率、延长电机的使用寿命。
转子冲片7的直径D4为31.6mm至35mm的范围，轴孔71的直径D5为7.6mm至8.4mm的范围，转子齿部73的齿宽L2为2.328mm至2.573mm的范围，优化了转子冲片7的尺寸结构，使转子冲片7各部分的磁通密度分布更加均匀、减少局部磁饱和现象，从而提高电机的工作效率、延长电机的使用寿命。
具体地，转子冲片7的直径D4为33.3mm，轴孔71的直径D5为8mm，转子齿部73的齿宽L2为2.45mm。
以上实施例为本实用新型的较佳实施方式，但本实用新型的实施方式不限于此，其他任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本实用新型的保护范围之内。

Claims (9)

  1. 一种电机定子冲片，定子冲片(1)中间设置有中心孔，定子冲片(1)包括环形轭部(11)和从环形轭部(11)内侧面伸出且均匀分布的若干个定子齿部(12)，相邻两个定子齿部(12)之间形成嵌线槽(2)；定子齿部(12)包括竖直的齿根部(121)和位于齿根部(121)的端部位置的极靴部(122)，其特征在于：定子冲片(1)的外圆直径D1为61.75mm至68.25mm的范围，中心孔的内径D2为31.6mm至35mm的范围，嵌线槽(2)的槽底沿圆周均布并且与一圆相切，该相切圆的直径D3为54.72mm至60.48mm的范围，定子齿部(12)的齿宽L1为4.75mm至5.25mm的范围，极靴部(122)的厚度H1为0.3*L1至0.45*L1的范围，定子齿部(12)的数量是8个，嵌线槽(2)的数量是8个。
  2. 根据权利要求1所述的一种电机定子冲片，其特征在于：定子齿部(12)的齿宽L1为5mm，极靴部(122)的厚度H1为1.5mm至2.25mm的范围。
  3. 根据权利要求1或2所述的一种电机定子冲片，其特征在于：环形轭部(11)的最小厚度H2为3.5mm至3.9mm的范围。
  4. 根据权利要求3所述的一种电机定子冲片，其特征在于：定子冲片(1)的外圆直径D1为65mm，中心孔的内径D2为33.3mm，相切圆的直径D3为57.6mm，极靴部(122)的厚度H1为2.15mm，环形轭部(11)的最小厚度H2为3.7mm。
  5. 根据权利要求4所述的一种电机定子冲片，其特征在于：嵌线槽(2)的槽底包括圆弧段(21)和分别相切于圆弧段(21)两端的直线段(22)，该直线段(22)与相邻定子齿部(12)的齿根部(121)的齿边(1211)垂直设置。
  6. 一种电机，包括转轴(3)、转子组件(4)、定子组件(5)以及外壳组件(6)，转子组件(4)安装在转轴(3)上，定子组件(5)嵌套安装在外壳组件(6)里面，转子组件(4)套设于定子组件(5)里面；定子组件(5)包括定子铁芯(51)、端部绝缘(52)和线圈绕组(53)，定子铁芯(51)由若干定子冲片(1)叠压而成；转子组件(4)包括转子铁芯，转子铁芯由若干转子冲片(7)叠压而成，转子冲片(7)中间设有可容转轴(3)穿过的轴孔(71)， 在转子冲片(7)的边缘上周向均匀分布有若干个转子槽(72)，转子槽(72)里面安装导电体(8)，相邻两个转子槽(72)之间形成一转子齿部(73)，其特征在于：所述定子冲片(1)如权利要求1至5任一项所述的一种电机定子冲片，定子冲片(1)的嵌线槽(2)的数量是8个，定子冲片(1)的嵌线槽(2)的数目与转子冲片(7)的转子槽(72)的数目之比为8：13至8：24的范围。
  7. 根据权利要求6所述的一种电机，其特征在于：定子冲片(1)的嵌线槽(2)的数目与转子冲片(7)的转子槽(72)的数目之比是8：15。
  8. 根据权利要求7所述的一种电机，其特征在于：转子冲片(7)的直径D4为31.6mm至35mm的范围，轴孔(71)的直径D5为7.6mm至8.4mm的范围，转子齿部(73)的齿宽L2为2.328mm至2.573mm的范围。
  9. 根据权利要求8所述的一种电机，其特征在于：转子冲片(7)的直径D4为33.3mm，轴孔(71)的直径D5为8mm，转子齿部(73)的齿宽L2为2.45mm。
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