WO2020156139A1 - 电机、定子组件及其绕组支架 - Google Patents

电机、定子组件及其绕组支架 Download PDF

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Publication number
WO2020156139A1
WO2020156139A1 PCT/CN2020/071928 CN2020071928W WO2020156139A1 WO 2020156139 A1 WO2020156139 A1 WO 2020156139A1 CN 2020071928 W CN2020071928 W CN 2020071928W WO 2020156139 A1 WO2020156139 A1 WO 2020156139A1
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WO
WIPO (PCT)
Prior art keywords
housing
gear tooth
shell
protrusion
winding support
Prior art date
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PCT/CN2020/071928
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English (en)
French (fr)
Inventor
张建生
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佛山市启正电气有限公司
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Application filed by 佛山市启正电气有限公司 filed Critical 佛山市启正电气有限公司
Publication of WO2020156139A1 publication Critical patent/WO2020156139A1/zh

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    • 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
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/525—Annular coils, e.g. for cores of the claw-pole type
    • 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
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Definitions

  • the invention relates to the technical field of motors, and in particular to a motor, a stator assembly and a winding support thereof.
  • the brushless DC motor includes a main shaft, a stator assembly and a rotor assembly.
  • the stator assembly is the stationary part of the motor, including the stator core, winding support and stator windings.
  • the main function of the stator assembly is to generate a rotating magnetic field.
  • the movement of the conductor in the magnetic field, or the conductor is static but has a magnetic field that changes with time, or both situations occur at the same time, which can cause the relative cutting of the magnetic induction line and the conductor.
  • a conductor According to the law of electromagnetic induction, a conductor generates an induced electromotive force.
  • a winding support applied to a stator assembly of a motor comprising: a first insulating sheet and a second insulating sheet, the first insulating sheet is provided with a first casing and extends outward along the radial direction of the first casing A plurality of first gear tooth accommodating shells, the second insulating sheet is provided with a second shell and a plurality of second gear tooth accommodating shells extending radially outward of the second shell, the first The insulating sheet and the second insulating sheet are combined to form a accommodating cavity for accommodating the stator core, the first gear tooth accommodating shell is provided with a first protrusion on one side away from the accommodating cavity, and the second gear tooth A second protrusion is provided on the side of the containing shell away from the containing cavity.
  • the stator core When the above-mentioned winding support is applied to the stator assembly, the stator core is installed in the accommodating cavity formed by the first insulating sheet and the second insulating sheet, wherein the gear part of the stator core is located in the first gear housing shell and the second gear housing.
  • the teeth are accommodated between the shells.
  • the coil winding is wound on the outside of the first gear tooth housing shell and the second gear tooth housing shell. Since the first gear tooth housing shell is provided with a first protrusion and the second gear tooth housing shell is provided with a second protrusion, the winding
  • the coil windings provided on the first gear tooth receiving shell and the second gear tooth receiving shell are oval rather than rectangular.
  • the elliptical coil winding is energized to reduce the magnetic resistance of the coil, resulting in a stronger magnetic field and a more concentrated magnetic pole direction, which more effectively converts electrical energy into driving the rotation of the rotor Torque and high energy utilization.
  • the rounded transition between the first protrusion and the first gear tooth receiving shell close to the first protrusion, and/or, the second protrusion and the The rounded transition between the second gear tooth receiving shells of the second protrusion.
  • the rounded transition between the first protrusion and the first gear tooth accommodating shell close to the first protrusion, and/or the second protrusion The rounded corner transition between the second gear tooth receiving shells of the second protrusion.
  • both the first housing and the second housing are provided with shaft mounting holes for mounting the main shaft.
  • the first housing is provided with a baffle close to the first gear tooth accommodating shell, and the baffle is provided with a plurality of bayonet ports, and the number of the bayonet ports is the same as that of the first gear housing.
  • the number of gear tooth receiving shells is corresponding, and the bayonet and the first gear tooth receiving shells are alternately arranged.
  • one of the first housing and the second housing is provided with a convex portion, and the other is provided with a groove corresponding to the convex portion, and the convex portion can be locked Held in the groove.
  • the first housing and the second housing are provided with a limiting ring on one side close to the receiving cavity, and the limiting ring separates the receiving cavity so that the stator The core is located outside the limiting ring.
  • one of the first housing and the second housing is provided with a limiting ring on a side close to the receiving cavity, and the limiting ring separates the receiving cavity so that The stator core is located outside the limiting ring.
  • a stator assembly comprising a stator core, a coil winding and the above-mentioned winding support, the stator core is installed in the containing cavity, and the coil winding is wound around the first gear tooth containing shell and the second The gear teeth are accommodated on the shell.
  • the stator core is installed in the accommodating cavity formed by the first insulating sheet and the second insulating sheet, and the coil windings are wound around the first gear tooth accommodating shell and the second gear tooth accommodating shell. Since the first gear tooth receiving shell is provided with a first protrusion and the second gear tooth receiving shell is provided with a second protrusion, the coil windings arranged on the first gear tooth receiving shell and the second gear tooth receiving shell are elliptical Shape, not rectangle.
  • the elliptical coil winding is energized to reduce the magnetic resistance of the coil, resulting in a stronger magnetic field and a more concentrated magnetic pole direction, which more effectively converts electrical energy into driving the rotation of the rotor Torque and high energy utilization.
  • a motor includes the above-mentioned stator assembly.
  • the first gear tooth receiving shell is provided with a first protrusion and the second gear tooth receiving shell is provided with a second protrusion, it is wound around the first gear tooth receiving shell and the second gear tooth receiving shell.
  • the coil winding is oval rather than rectangular.
  • the right-handed spiral rule also known as the Ampere's rule two
  • the magnetic field intensity is greater and the magnetic pole direction is more concentrated, and the electric energy is more effectively converted into the rotating torque for driving the rotor. Energy utilization The rate is high.
  • Fig. 1 is a schematic structural diagram of the stator assembly in an embodiment of the present invention
  • Figure 2 is an exploded view of Figure 1;
  • FIG. 3 is a schematic diagram of the structure of the first insulating sheet in FIG. 1;
  • FIG. 4 is another perspective view of the first insulating sheet in FIG. 3;
  • FIG. 5 is a schematic diagram of the structure of the second insulating sheet in FIG. 1;
  • FIG. 6 is another perspective view of the second insulating sheet in FIG. 5;
  • Figure 7 is a cross-sectional view of Figure 1;
  • FIG. 8 is a schematic diagram of the structure of the stator core in FIG. 1.
  • Fig. 1 is a schematic structural diagram of the stator assembly in an embodiment of the present invention.
  • the stator assembly includes a stator core 300, a coil winding 400 and a winding support.
  • a winding support applied to a stator assembly of a motor includes: a first insulating sheet 100 and a second insulating sheet 200.
  • the first insulating sheet 100 is provided with a first housing 110 and a plurality of first gear tooth accommodating shells 120 extending outward in the radial direction of the first housing 110.
  • the second insulating sheet 200 is provided with a second housing 210 and A plurality of second gear accommodating shells 220 extending radially outward of the second housing 210, the first insulating sheet 100 and the second insulating sheet 200 are combined to form an accommodating cavity 103 for accommodating the stator core 300.
  • the stator core 300 includes a yoke portion 310 and a gear tooth portion 320.
  • the yoke part 310 is located between the first housing 110 and the second housing 210
  • the gear tooth part 320 is located between the first gear tooth receiving shell 120 and the second gear tooth receiving shell 220.
  • the first gear tooth receiving shell 120 is provided with a first protrusion 121 on the side away from the receiving cavity 103
  • the second gear tooth receiving shell 220 is provided with a second protrusion 221 on the side away from the receiving cavity 103.
  • the stator core 300 is installed in the receiving cavity 103 formed by the first insulating sheet 100 and the second insulating sheet 200, and the coil winding 400 is wound around the first gear tooth receiving shell 120 and the second Outside of the gear tooth receiving shell 220, since the first gear tooth receiving shell 120 is provided with a first protrusion 121, and the second gear tooth receiving shell 220 is provided with a second protrusion 221, it is arranged around the first gear tooth receiving shell 120.
  • the upper and lower ends of the coil winding 400 on the second gear tooth receiving shell 220 are convex, and are roughly oval rather than rectangular.
  • the elliptical coil winding 400 is energized to reduce the magnetic resistance of the coil and increase the magnetic flux, which more effectively converts electrical energy into rotational torque for driving the rotor, and has high energy utilization.
  • the material of the first insulating sheet 100 and the second insulating sheet 200 may be a plastic material, a resin material or other insulating materials.
  • the winding support is matched with the stator core 300 made of silicon steel sheet, and electrical insulation is realized between the main shaft of the motor and the stator core 300, thereby improving the safety of the motor operation.
  • the arrangement of the first protrusion 121 and the second protrusion 221 prevents the coil winding 400 from being scraped off by the sharp edges on the first gear tooth receiving shell 120 and the second gear tooth receiving shell 220 when winding, which improves the installation The safety and safety of use.
  • the stator core 300 is installed in the accommodating cavity 103, and the coil winding 400 is wound around the first gear tooth accommodating shell 120 and the second gear tooth accommodating shell 220. After the elliptical coil winding 400 is energized, the electric energy is more effectively converted into the rotating torque for driving the rotor, and the energy utilization rate is high.
  • the rounded transition between the first protrusion 121 and the first gear tooth receiving shell 120 close to the first protrusion 121, and/or, the second protrusion 221 is close to the second protrusion
  • the rounded corners transition between the second gear accommodating shell 220 of the ridge 221. In this way, when the coil winding 400 is wound, the sharp edges on the first gear tooth receiving shell 120 and the second gear tooth receiving shell 220 will not be scratched.
  • the rounded corner 101 transitions between the first protrusion 121 and the first gear housing 120 close to the first protrusion 121, and/or, the second protrusion 221 and the second protrusion near the The rounded corner 101 transitions between the second gear tooth receiving shells 220 of 221.
  • the R fillet 101 transitions, so that the first gear tooth housing shell 120 and the second gear tooth housing shell 220 are closed to form a racetrack-shaped contour, and the coil winding 400 is wound and arranged in a racetrack shape. After the coil winding 400 is energized, it is more effective The electric energy is converted into the rotating torque for driving the rotor, and the energy utilization rate is high.
  • the R fillet 101 is a fillet of a circular arc tangent to two intersecting straight lines.
  • the middle of the first housing 110 and the second housing 210 are provided with a shaft mounting hole 102 for installing the main shaft, so that when the motor is assembled, the main shaft of the motor is inserted into the shaft for installation.
  • the main shaft and the stator assembly are fixedly connected.
  • the first housing 110 is provided with a baffle 111 near the first gear tooth housing 120, and the baffle 111 is provided with a plurality of bayonet openings 112, the number of bayonet openings 112 Corresponding to the number of the first gear accommodating shells 120, the bayonet 112 and the first gear accommodating shells 120 are arranged alternately.
  • the outlet end of the coil winding 400 can be clamped in the bayonet 112, which is beneficial for wiring.
  • one of the first housing 110 and the second housing 210 is provided with a convex portion 113, and the other is provided with a groove 211 corresponding to the convex portion 113,
  • the protrusion 113 can be clamped in the groove 211. 4 and 6, it can be seen that when the first insulating sheet 100 and the second insulating sheet 200 are connected, they are snapped into the groove 211 by means of the convex portion 113 to achieve rapid alignment and fixation, and during the use of the motor Among them, the cooperation of the convex portion 113 and the groove portion 211 makes the structure of the winding support more stable.
  • the groove portions 211 and the convex portions 113 correspond one-to-one, and the convex portions 113 are evenly distributed along the circumferential direction of the receiving cavity 103.
  • the number of the convex portion 113 and the groove portion 211 is three. It can be understood that, in other embodiments, the number of convex portions 113 and groove portions 211 is not limited to this.
  • the yoke part 310 of the stator core 300 is located between the first housing 110 and the second housing 210, and the gear part 320 of the stator core 300 is located at the first gear housing 120 and the second gear tooth. Between the housing 220. In fact, the stator core 300 is to strengthen the magnetic field of the coil winding 400. The yoke part 310 of the stator core 300 is located outside the coil winding 400 and has little strengthening effect on the magnetic field. The volume of the traditional yoke part 310 is full The cavity formed by the first housing 110 and the second housing 210 has a larger volume and more consumables.
  • the first housing 110 and the second housing 210 are provided with a limit ring 104 on the side close to the containing cavity 103.
  • the limit ring 104 separates the accommodating cavity 103 so that the stator core 300 is located outside the limiting ring 104.
  • the yoke portion 310 of the stator core 300 is only located between the stop ring 104 and the first gear tooth receiving shell 120 and the second gear tooth receiving shell 220, and the volume of the yoke portion 310 is greatly reduced.
  • the diameter of the hole in the middle of the yoke part 310 is greatly increased, and the material is greatly saved. The saved material can be used to process the stator core 300 of smaller specifications.
  • the winding bracket is matched with the stator core 300 made of silicon steel sheet in FIG. 8.
  • the stator core 300 made of silicon steel sheet hollowed out in the middle can reduce the amount of silicon steel sheet material, reduce iron loss, improve electromagnetic conversion efficiency, and improve energy utilization rate.
  • the stop ring 104 plays a role in positioning and restricting the installation of the yoke part 310.
  • one of the first housing 110 and the second housing 210 is provided with a limiting ring 104 on a side close to the receiving cavity 103, and the limiting ring 104 separates the receiving cavity 103 so as to make the stator shape
  • the core 300 is located outside the limit ring 104.
  • a motor includes the above-mentioned stator assembly.
  • the first gear tooth accommodating shell 120 is provided with a first protrusion 121 and the second gear tooth accommodating shell 220 is provided with a second protrusion 221, it is arranged around the first gear tooth accommodating shell 120 and the second gear tooth
  • the coil winding 400 on the accommodating shell 220 is oval rather than rectangular. According to the right-hand spiral rule (also known as Ampere's rule two), after the elliptical coil winding 400 is energized, the generated magnetic field is stronger and the direction of the magnetic poles is more concentrated, which more effectively converts electrical energy into rotational torque that drives the rotor. High utilization rate.
  • the motor further includes a rotor and a main shaft.
  • the main shaft is inserted into the shaft mounting hole 102 and is fixedly connected to the stator assembly.
  • the rotor is sleeved outside the stator assembly, and there is a gap between the rotor and the stator assembly.

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

Abstract

一种电机、定子组件及其绕组支架。该绕组支架包括：第一绝缘片（100）和第二绝缘片（200），第一绝缘片（100）设有第一壳体（110）和沿第一壳体（110）的径向向外延长的多个第一轮齿容纳壳（120），第二绝缘片（200）设有第二壳体（210）和沿第二壳体（210）的径向向外延长的多个第二轮齿容纳壳（220），第一轮齿容纳壳（120）设有第一凸起（121），第二轮齿容纳壳（220）设有第二凸起（221），线圈绕组（400）通电后电磁转矩增大，能量利用率高。此外，该绕组支架匹配硅钢片材质的定子型芯（300）使用，定子型芯（300）的中间挖空，能够减少硅钢片材料用量，降低铁损，提高电磁转换效率，进而提高能量利用率。该可绝缘材质的绕组支架匹配硅钢片材质的定子型芯（300）使用，使得电机的主轴和定子型芯（300）之间电气绝缘，提高电机运行的安全性。

Description

电机、定子组件及其绕组支架 技术领域
本发明涉及电机技术领域，特别是涉及一种电机、定子组件及其绕组支架。
背景技术
电机是指依据电磁感应定律实现电能转换或传递的一种电磁装置。无刷直流电机包括主轴、定子组件和转子组件。定子组件是电机中静止不动的部分，包括定子铁芯、绕组支架和定子绕组。定子组件的主要作用是产生旋转磁场。导体在磁场中运动，或者导体静止但有着随时间变化的磁场，或者两种情况同时发生，都可以造成磁感线与导体的相对切割。按照电磁感应定律，导体会产生感应电动势。
然而，传统的电机存在着能量利用率低的问题。
发明内容
基于此，有必要针对能量效率低的问题，提供一种电机、定子组件及其绕组支架，
一种绕组支架，应用于电机的定子组件，包括：第一绝缘片和第二绝缘片，所述第一绝缘片设有第一壳体和沿所述第一壳体的径向向外延长的多个第一轮齿容纳壳，所述第二绝缘片设有第二壳体和沿所述第二壳体的径向向外延长的多个第二轮齿容纳壳，所述第一绝缘片和所述第二绝缘片合拢形成用于容纳定子型芯的容纳腔，所述第一轮齿容纳壳远离所述容纳腔的一侧设有第一凸起， 所述第二轮齿容纳壳远离所述容纳腔的一侧设有第二凸起。
上述绕组支架应用到定子组件时，定子型芯安装在第一绝缘片和第二绝缘片合拢后形成的容纳腔，其中，定子型芯的轮齿部位于第一轮齿容纳壳和第二轮齿容纳壳之间。线圈绕组绕设在第一轮齿容纳壳和第二轮齿容纳壳的外部，由于第一轮齿容纳壳设有第一凸起，第二轮齿容纳壳设有第二凸起，所以绕设在第一轮齿容纳壳和第二轮齿容纳壳上的线圈绕组呈椭圆形，而非矩形。根据右手螺旋定则(又称安培定则二)，呈椭圆形的线圈绕组通电后降低线圈磁阻，产生的磁场强度更大、磁极方向更集中，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
在其中一个实施例中，所述第一凸起和靠近所述第一凸起的所述第一轮齿容纳壳之间圆角过渡，和/或，所述第二凸起和靠近所述第二凸起的所述第二轮齿容纳壳之间圆角过渡。
在其中一个实施例中，所述第一凸起和靠近所述第一凸起的所述第一轮齿容纳壳之间R圆角过渡，和/或，所述第二凸起和靠近所述第二凸起的所述第二轮齿容纳壳之间R圆角过渡。
在其中一个实施例中，所述第一壳体和所述第二壳体的中部均设有用于安装主轴的轴安装孔。
在其中一个实施例中，所述第一壳体靠近所述第一轮齿容纳壳处设有挡板，所述挡板设有多个卡口，所述卡口的数量与所述第一轮齿容纳壳的数量相应，所述卡口与所述第一轮齿容纳壳交错设置。
在其中一个实施例中，所述第一壳体和所述第二壳体中的一个设有凸部，另一个设有用于与所述凸部相对应的槽部，所述凸部可卡持于所述槽部内。
在其中一个实施例中，所述第一壳体和所述第二壳体靠近所述容纳腔的一 侧均设有限位环，所述限位环分隔所述容纳腔，以使所述定子型芯位于所述限位环的外侧。
在其中一个实施例中，所述第一壳体和所述第二壳体中的一个在靠近所述容纳腔的一侧设有限位环，所述限位环分隔所述容纳腔，以使所述定子型芯位于所述限位环的外侧。
一种定子组件，包括定子型芯、线圈绕组和上述绕组支架，所述定子型芯安装于所述容纳腔内，所述线圈绕组绕设在所述第一轮齿容纳壳和所述第二轮齿容纳壳上。
上述定子组件，定子型芯安装在第一绝缘片和第二绝缘片合拢后形成的容纳腔，线圈绕组绕设在第一轮齿容纳壳和第二轮齿容纳壳的外部。由于第一轮齿容纳壳设有第一凸起，第二轮齿容纳壳设有第二凸起，所以绕设在第一轮齿容纳壳和第二轮齿容纳壳上的线圈绕组呈椭圆形，而非矩形。根据右手螺旋定则(又称安培定则二)，呈椭圆形的线圈绕组通电后降低线圈磁阻，产生的磁场强度更大、磁极方向更集中，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
一种电机，包括上述定子组件。
上述电机中，由于第一轮齿容纳壳设有第一凸起，第二轮齿容纳壳设有第二凸起，所以绕设在第一轮齿容纳壳和第二轮齿容纳壳上的线圈绕组呈椭圆形，而非矩形。根据右手螺旋定则(又称安培定则二)，呈椭圆形的线圈绕组通电后，产生的磁场强度更大、磁极方向更集中，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
附图说明
图1为本发明一实施例中所述定子组件的结构示意图；
图2为图1的爆炸图；
图3为图1中所述第一绝缘片的结构示意图；
图4为图3中所述第一绝缘片的另一视角图；
图5为图1中所述第二绝缘片的结构示意图；
图6为图5中所述第二绝缘片的另一视角图；
图7为图1的剖视图；
图8为图1中所述定子型芯的结构示意图。
附图标记说明
100、第一绝缘片，101、R圆角，102、轴安装孔，103、容纳腔，104、限位环，110、第一壳体，111、挡板，112、卡口，113、凸部，120、第一轮齿容纳壳，121、第一凸起，200、第二绝缘片，210、第二壳体，211、槽部，220、第二轮齿容纳壳，221、第二凸起，300、定子型芯，310、磁轭部，320、轮齿部，400、线圈绕组。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元 件，它可以是直接连接到另一个元件或者可能同时存在居中元件。相反，当元件被称作“直接在”另一元件“上”时，不存在中间元件。本发明中所述“第一”、“第二”不代表具体的数量及顺序，仅仅是用于名称的区分。
图1为本发明一实施例中所述定子组件的结构示意图。结合图1和图2，该定子组件包括定子型芯300、线圈绕组400和绕组支架。
具体地，结合图3至图7，一种绕组支架，应用于电机的定子组件，包括：第一绝缘片100和第二绝缘片200。第一绝缘片100设有第一壳体110和沿第一壳体110的径向向外延长的多个第一轮齿容纳壳120，第二绝缘片200设有第二壳体210和沿第二壳体210的径向向外延长的多个第二轮齿容纳壳220，第一绝缘片100和第二绝缘片200合拢形成用于容纳定子型芯300的容纳腔103。其中，定子型芯300包括磁轭部310和轮齿部320。磁轭部310位于第一壳体110和第二壳体210之间，轮齿部320位于第一轮齿容纳壳120和第二轮齿容纳壳220之间。第一轮齿容纳壳120远离容纳腔103的一侧设有第一凸起121，第二轮齿容纳壳220远离容纳腔103的一侧设有第二凸起221。
上述绕组支架应用到定子组件时，定子型芯300安装在第一绝缘片100和第二绝缘片200合拢后形成的容纳腔103，线圈绕组400绕设在第一轮齿容纳壳120和第二轮齿容纳壳220的外部，由于第一轮齿容纳壳120设有第一凸起121，第二轮齿容纳壳220设有第二凸起221，所以绕设在第一轮齿容纳壳120和第二轮齿容纳壳220上的线圈绕组400上下两端凸起，大致呈椭圆形，而非矩形。根据右手螺旋定则(又称安培定则二)，呈椭圆形的线圈绕组400通电后降低线圈磁阻，磁通量增大，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
此外，第一绝缘片100和第二绝缘片200的材质可选为塑料材质、树脂材 质或其他可绝缘材质。该绕组支架匹配硅钢片材质的定子型芯300使用，电机的主轴和定子型芯300之间实现电气绝缘，从而提高电机运行的安全性。并且，第一凸起121和第二凸起221的设置使得线圈绕组400绕线时不会被第一轮齿容纳壳120和第二轮齿容纳壳220上的尖锐棱边刮断，提高安装的安全性和使用的安全性。
相应地，结合图1和图7，上述定子组件中，定子型芯300安装于容纳腔103内，线圈绕组400绕设在第一轮齿容纳壳120和第二轮齿容纳壳220上，呈椭圆形的线圈绕组400通电后，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
具体地，结合图3至图6，第一凸起121和靠近第一凸起121的第一轮齿容纳壳120之间圆角过渡，和/或，第二凸起221和靠近第二凸起221的第二轮齿容纳壳220之间圆角过渡。如此，线圈绕组400绕线时更加不会被第一轮齿容纳壳120和第二轮齿容纳壳220上的尖锐棱边刮断。
进一步地，结合图1，第一凸起121和靠近第一凸起121的第一轮齿容纳壳120之间R圆角101过渡，和/或，第二凸起221和靠近第二凸起221的第二轮齿容纳壳220之间R圆角101过渡。R圆角101过渡，使得第一轮齿容纳壳120和第二轮齿容纳壳220合拢后呈跑道型轮廓，则线圈绕组400绕设后呈跑道型布置，线圈绕组400通电后，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。其中，R圆角101是与两条相交直线相切的圆弧的圆角。
在其中一个实施例中，结合图1，第一壳体110和第二壳体210的中部均设有用于安装主轴的轴安装孔102，便于电机组装时，电机的主轴插设到该轴安装孔102中，从而主轴和定子组件固定连接。
在其中一个实施例中，结合图1和图3，第一壳体110靠近第一轮齿容纳壳 120处设有挡板111，挡板111设有多个卡口112，卡口112的数量与第一轮齿容纳壳120的数量相应，卡口112与第一轮齿容纳壳120交错设置。每一个线圈绕组400绕设在第一轮齿容纳壳120和第二轮齿容纳壳220后，该线圈绕组400的出线端可卡设在该卡口112内，有利于布线。
在其中一个实施例中，结合图3至图7，第一壳体110和第二壳体210中的一个设有凸部113，另一个设有用于与凸部113相对应的槽部211，凸部113可卡持于槽部211内。其中，从图4和图6可以得出，该第一绝缘片100和第二绝缘片200连接时，借助凸部113卡入槽部211中，实现快速对位和固定，并且在电机使用过程中，凸部113和槽部211的配合作用，使得绕组支架的结构更加稳定。
具体地，凸部113为多个，槽部211与凸部113一一对应，凸部113沿容纳腔103的周向均匀分布。其中，从图4和图6可以得出，凸部113和槽部211的数量为3个。可以理解，在其他实施例中，凸部113和槽部211的数量不限于此。
前述提到，定子型芯300的磁轭部310位于第一壳体110和第二壳体210之间，定子型芯300的轮齿部320位于第一轮齿容纳壳120和第二轮齿容纳壳220之间。实际上，定子型芯300是为了加强线圈绕组400的磁场，定子型芯300的磁轭部310位于线圈绕组400外部，对磁场的加强作用很小，而传统的磁轭部310体积占满第一壳体110和第二壳体210形成的腔体中，体积较大，耗材较多。
在本实施例中，结合图1、图4、图6、图7和图8，第一壳体110和第二壳体210靠近容纳腔103的一侧均设有限位环104，限位环104分隔容纳腔103，以使定子型芯300位于限位环104的外侧。如此，定子型芯300的磁轭部310 仅仅位于限位环104和第一轮齿容纳壳120及第二轮齿容纳壳220之间，磁轭部310的体积大大减小。磁轭部310中部的孔的直径大大增加，材料大大节省，节省的材料可以用来加工更小规格的定子型芯300。该绕组支架配合图8中的硅钢片制成的定子型芯300，中间挖空的硅钢片材质的定子型芯300能够减少硅钢片材料用量，降低铁损，提高电磁转换效率，进而提高能量利用率。并且，限位环104对磁轭部310的安装起到定位、限位的作用。
可以理解，在其他实施例中，第一壳体110和第二壳体210中的一个在靠近容纳腔103的一侧设有限位环104，限位环104分隔容纳腔103，以使定子型芯300位于限位环104的外侧。
一种电机，包括上述定子组件。相应地，由于第一轮齿容纳壳120设有第一凸起121，第二轮齿容纳壳220设有第二凸起221，所以绕设在第一轮齿容纳壳120和第二轮齿容纳壳220上的线圈绕组400呈椭圆形，而非矩形。根据右手螺旋定则(又称安培定则二)，呈椭圆形的线圈绕组400通电后，产生的磁场强度更大、磁极方向更集中，更有效地将电能转化为驱动转子的转动力矩，能量利用率高。
具体地，电机还包括转子和主轴，主轴插设在轴安装孔102中，与定子组件固定连接。转子套在定子组件的外部，且与定子组件之间有间隙。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改 进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种绕组支架，应用于电机的定子组件，其特征在于，所述的绕组支架包括：第一绝缘片和第二绝缘片，所述第一绝缘片设有第一壳体和沿所述第一壳体的径向向外延长的多个第一轮齿容纳壳，所述第二绝缘片设有第二壳体和沿所述第二壳体的径向向外延长的多个第二轮齿容纳壳，所述第一绝缘片和所述第二绝缘片合拢形成用于容纳定子型芯的容纳腔，所述第一轮齿容纳壳远离所述容纳腔的一侧设有第一凸起，所述第二轮齿容纳壳远离所述容纳腔的一侧设有第二凸起。
  2. 根据权利要求1所述的绕组支架，其特征在于，所述第一凸起和靠近所述第一凸起的所述第一轮齿容纳壳之间圆角过渡，和/或，所述第二凸起和靠近所述第二凸起的所述第二轮齿容纳壳之间圆角过渡。
  3. 根据权利要求2所述的绕组支架，其特征在于，所述第一凸起和靠近所述第一凸起的所述第一轮齿容纳壳之间R圆角过渡，和/或，所述第二凸起和靠近所述第二凸起的所述第二轮齿容纳壳之间R圆角过渡。
  4. 根据权利要求1所述的绕组支架，其特征在于，所述第一壳体和所述第二壳体的中部均设有用于安装主轴的轴安装孔。
  5. 根据权利要求1所述的绕组支架，其特征在于，所述第一壳体靠近所述第一轮齿容纳壳处设有挡板，所述挡板设有多个卡口，所述卡口的数量与所述第一轮齿容纳壳的数量相应，所述卡口与所述第一轮齿容纳壳交错设置。
  6. 根据权利要求1所述的绕组支架，其特征在于，所述第一壳体和所述第二壳体中的一个设有凸部，另一个设有用于与所述凸部相对应的槽部，所述凸部可卡持于所述槽部内。
  7. 根据权利要求1至6任意一项所述的绕组支架，其特征在于，所述第一壳体和所述第二壳体靠近所述容纳腔的一侧均设有限位环，所述限位环分隔所 述容纳腔，以使所述定子型芯位于所述限位环的外侧。
  8. 根据权利要求1至6任意一项所述的绕组支架，其特征在于，所述第一壳体和所述第二壳体中的一个在靠近所述容纳腔的一侧设有限位环，所述限位环分隔所述容纳腔，以使所述定子型芯位于所述限位环的外侧。
  9. 一种定子组件，其特征在于，包括定子型芯、线圈绕组和如权利要求1至8任意一项所述的绕组支架，所述定子型芯安装于所述容纳腔内，所述线圈绕组绕设在所述第一轮齿容纳壳和所述第二轮齿容纳壳上。
  10. 一种电机，其特征在于，包括权利要求9所述的定子组件。
PCT/CN2020/071928 2019-01-31 2020-01-14 电机、定子组件及其绕组支架 WO2020156139A1 (zh)

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