WO2010124534A1 - Stator structure for three-phase motor - Google Patents

Stator structure for three-phase motor Download PDF

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Publication number
WO2010124534A1
WO2010124534A1 PCT/CN2010/070359 CN2010070359W WO2010124534A1 WO 2010124534 A1 WO2010124534 A1 WO 2010124534A1 CN 2010070359 W CN2010070359 W CN 2010070359W WO 2010124534 A1 WO2010124534 A1 WO 2010124534A1
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WO
WIPO (PCT)
Prior art keywords
winding
phase
wire
phase motor
core
Prior art date
Application number
PCT/CN2010/070359
Other languages
French (fr)
Chinese (zh)
Inventor
张旭
Original Assignee
中山大洋电机制造有限公司
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Filing date
Publication date
Application filed by 中山大洋电机制造有限公司 filed Critical 中山大洋电机制造有限公司
Publication of WO2010124534A1 publication Critical patent/WO2010124534A1/en

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Classifications

    • 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
    • H02K1/148—Sectional cores
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors 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
    • 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
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles

Definitions

  • the utility model relates to a stator structure of a three-phase motor.
  • stator cores in the stator structure of the traditional three-phase motor are integrally formed. In this way, the stator core must use a dedicated winding machine for winding. For small and medium-sized motor companies, it needs to be added. Winding machine equipment is undoubtedly a cost burden.
  • stator cores formed by iron core single-piece forming or chain forming the following disadvantages exist: 1) The iron core is not independently wound around a phase winding, three-phase motor The three-phase windings are not completely separated, the phase windings are close, the phase-to-phase insulation effect is not ideal, the winding is difficult and the efficiency is low, the torque pulsation is large, which will cause large structural noise and reduce the three-phase motor. 2) The end insulation of the stator core and the wire is not provided. The wire winding between the teeth is confusing, which may even cause a short circuit, damage the winding and finally burn the three-phase motor.
  • the wiring method of the traditional three-phase coil winding is that the wire ends of the three-phase coil winding are welded or clamped with the terminal package, and the wiring is prone to error, and the general control circuit board is Separated, the structure is not compact enough; 4) The yoke of the core unit is not provided with the clamping structure when winding, and the installation and positioning are inconvenient and inaccurate when winding Winding increase the difficulty.
  • the object of the present invention is to provide a three-phase motor stator structure, each of which has a single phase winding around a phase winding, and each phase winding is completely separated, and the phase-to-phase insulation effect is very good, and It is equipped with a fixed stator core and a special end insulation for the wire, which reduces the torque ripple of the three-phase motor, reduces the structural noise, and improves the working efficiency of the three-phase motor.
  • a three-phase motor stator structure comprising a stator core, a wire winding and an end insulation, the wire winding wound on a tooth portion of the stator core, the stator core passing through three sides of the core Groove and convex
  • the stages are combined with each other, and each core unit is wound around a phase winding.
  • Each of the iron cores described above is provided with an end insulation, each of the iron cores protruding three teeth and winding around a phase winding, the winding direction of the first teeth and the winding of the third teeth The direction is the same, but opposite to the second tooth.
  • the mechanical angle ⁇ 1 formed between the adjacent two tooth portions of each of the iron core monomers described above is equal, and the mechanical angle ⁇ 2 formed between the adjacent two core cores is equal, ⁇ 1 ⁇ ⁇ 2 .
  • Each of the core units described above has two notches on the side wall of the yoke.
  • the end insulation described above may be integrally molded, or may be formed by insulation fastening of the upper and lower ends, and each core unit may occupy a mechanical angle of 120 degrees.
  • the upper end of the end insulation is provided with a wire passing mechanism, and the wire passing mechanism comprises a wire groove and a wire baffle disposed on a side of the wire groove, and the wire end of each phase wire winding is from one tooth Along the line groove, it is fixed by the line baffle to the next tooth.
  • the end insulation described above has two through holes communicating with the upper and lower ends, and the through holes correspond to the notches on the yoke portion of the core unit, and the external pins are inserted from the upper end of the through hole and pass through the slot.
  • the lower end of the hole is pierced, it is soldered on the PCB board, and the three-phase coil winding is connected by the wiring of the PCB board, and the connection manner of the three-phase coil winding is changed by changing the wiring manner of the PCB board.
  • the lower end of the end insulation described above is provided with a positioning post and a recess for receiving the rotor position sensing device, and the positioning post is inserted into the positioning hole of the PCB board to fix the PCB board.
  • the stator core is formed by the iron core single assembly method, which is convenient for winding, and can manually replace the winding machine to wind the stator core, thereby reducing the winding cost.
  • Each core unit is wound into a phase independently of a phase winding, each winding is completely separated, the phase-to-phase insulation effect is very good, and the end insulation is fixed for the fixed stator core and the wire.
  • the installation position is accurate, the winding is convenient, the torque ripple of the three-phase motor is reduced, the structural noise is reduced, and the working efficiency of the three-phase motor is improved; 3) the external pin is inserted and worn from the upper end of the end insulated through hole The notch on the yoke portion of the iron core is pierced from the lower end of the through hole and soldered on the PCB. It is not necessary to adjust the winding method of the three-phase winding and the three-phase winding is changed only by changing the wiring mode of the PCB. Winding connection method, Reduced work costs.
  • Figure 1 is a schematic view of the structure of the stator of the present invention.
  • Figure 2 is a plan view of Figure 1.
  • FIG. 3 is a schematic diagram of the wire passing through the winding of the iron core of the present invention.
  • Figure 4 is a structural view of the iron core of the present invention.
  • Figure 5 is a schematic view showing the installation of the iron core unit insulated from the upper and lower ends.
  • Figure 6 is a perspective view of the upper end insulation of the present invention.
  • Figure 7 is a plan view of Figure 6.
  • Figure 8 is a perspective view of the lower end portion of the present invention.
  • Figure 9 is an overall view of the application of the stator structure.
  • Figure 10 is a schematic diagram of the explosion of Figure 9.
  • Figure 1 1 is a half cross-sectional view of Figure 10.
  • Figure 12 is a schematic illustration of the PCB of Figure 9.
  • FIG. 4 a stator structure of a three-phase motor comprising a stator core 1, a winding 2 and an end insulation 3, and the winding 2 is wound around the teeth of the stator core 1.
  • the stator core 1 is formed by three metal cores 4 through the groove 5 and the boss 6 on the side thereof, and each core unit 4 is wound around a phase winding 2, each iron The core unit 4 occupies a mechanical angle of 120 degrees.
  • Each of the core units 4 is provided with an end insulation 3, and each of the core units 4 protrudes 3 teeth and wraps around a phase winding 2, and the winding direction of the first teeth and the winding of the third teeth
  • the lines are in the same direction but opposite to the second teeth.
  • the mechanical angle ⁇ 1 formed between the adjacent two teeth of each core unit 4 is equal, and the mechanical angle ⁇ 2 formed between the adjacent two core units 4 is equal, ⁇ 1 ⁇ ⁇ 2.
  • two notches 7 are formed in the side wall of the yoke of each of the core units 4.
  • the end insulation 3 can be integrally molded. As can be seen from Fig. 5, the upper end portion 31 and the lower end portion can also be used. Insulation 32 is two-part fastening.
  • the upper end insulation 31 is provided with a wire passing mechanism, and the wire passing mechanism includes a wire groove 8 and a wire fence 9 disposed on the side of the wire groove 8
  • a baffle column 10 is disposed at one end of the plate 9.
  • the wire end of each phase winding 2 is wound from the first tooth portion in a clockwise or counterclockwise direction and fixed by the baffle column 10, and is fixed by the wire baffle 9 along the line groove 8 to reach the second line.
  • the wire end of the wire winding 2 is wound around the second tooth portion in a counterclockwise or clockwise direction, and is fixed by the baffle column 10 and then wound to reach the third tooth portion, and the wire end of the wire winding 2 is clockwise or reversed.
  • the hour hand direction is fixed by the wire fence 9 through the wire groove 8 and wound around the third tooth portion.
  • the end insulation 3 has two through holes 11 communicating with the upper and lower ends, and the through holes 11 correspond to the notches 7 on the yoke portion of the core unit 4.
  • the lower end insulation 32 is provided with a hollow sleeve 15 which is fitted into the through hole 11 of the end insulation 3 and communicates the upper end insulation 31 and the lower end insulation 32.
  • the lower end insulation 32 is further provided with a positioning post 13 and a recess 14 for receiving the rotor position sensing device 20, and the positioning post 13 is inserted into the positioning hole 18 on the PCB board 16, and the PCB board 16 is fixed.
  • the pins of the rotor position sensing device 20 are soldered to the solder joints 19 on the PCB board 16.
  • the external pin 12 is inserted from the upper end of the through hole 11 of the end insulation 3 and passed through the notch 7 on the yoke portion of the core unit 4, and is passed through the lower end of the through hole 11 and then fixed to the soldering hole 17 soldered on the PCB board 16, There is no need to adjust the winding mode of the three-phase winding and the winding, and the connection mode of the three-phase winding is directly changed by changing the wiring mode of the PCB.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A stator structure for a three-phase motor comprises a stator core (1), coil windings (2) and an end insulation (3). The coil windings (2) are wound on the teeth of the stator core (1). The stator core (1) is composed of three core single bodies (4) which are put together by their lateral grooves (5) and bosses (6). Each core single body (4) is wound with one phase of the coil windings. Each core single body (4) occupies a mechanical angle of 120 degree. The phase to phase insulation effect of the stator structure is improved. The torque ripple and the structure noise of the three-phase motor are reduced by providing the end insulation for fixing the stator core and for a special purpose of threading.

Description

一种三相电机定子结构 技术领域 ：  Three-phase motor stator structure Technical field:
本实用新型涉及一种三相电机定子结构。  The utility model relates to a stator structure of a three-phase motor.
背景技术 ： Background technique :
传统三相电机定子结构中的定子铁芯大多数采用一体成型方式， 采用这种 方式的定子铁芯， 在绕线时就必需使用专用的绕线机， 对于中小型电机公司而 言， 需增添绕线专用机设备， 无疑是一项成本负担。  Most of the stator cores in the stator structure of the traditional three-phase motor are integrally formed. In this way, the stator core must use a dedicated winding machine for winding. For small and medium-sized motor companies, it needs to be added. Winding machine equipment is undoubtedly a cost burden.
虽然近几年来陆续出现了一些采用铁芯单体拼合方式成型或者链条式成型 的定子铁芯， 但是还存在如下缺点： 1 )铁芯单体不是独立绕一相线圏绕组， 三 相电机的三相线圏绕组也没有被完全隔开， 相间绕组距离较近， 相间绝缘效果 不够理想， 绕线困难效率低， 转距脉动较大， 会造成较大的结构噪音， 降低了 三相电机的工作效率； 2 )而且也没有设置固定定子铁芯及过线专用的端部绝缘， 齿部间的线圏绕组过线比较混乱， 甚至会造成短路， 损坏线圏绕组， 最终烧毁 三相电机； 3 )传统三相线圏绕组的接线方法， 例如星形接法和三角形接法， 是 三相线圏绕组的线头焊接起来或者与端子包夹起来， 接线时容易出错， 一般与 控制线路板是分离的， 结构不够紧凑； 4 )铁芯单体的轭部没有设置绕线时的装 夹结构， 绕线时安装定位不方便和不精确， 增加绕线难度。  Although in recent years there have been some stator cores formed by iron core single-piece forming or chain forming, the following disadvantages exist: 1) The iron core is not independently wound around a phase winding, three-phase motor The three-phase windings are not completely separated, the phase windings are close, the phase-to-phase insulation effect is not ideal, the winding is difficult and the efficiency is low, the torque pulsation is large, which will cause large structural noise and reduce the three-phase motor. 2) The end insulation of the stator core and the wire is not provided. The wire winding between the teeth is confusing, which may even cause a short circuit, damage the winding and finally burn the three-phase motor. 3) The wiring method of the traditional three-phase coil winding, such as the star connection method and the delta connection method, is that the wire ends of the three-phase coil winding are welded or clamped with the terminal package, and the wiring is prone to error, and the general control circuit board is Separated, the structure is not compact enough; 4) The yoke of the core unit is not provided with the clamping structure when winding, and the installation and positioning are inconvenient and inaccurate when winding Winding increase the difficulty.
发明内容 ： Summary of the invention:
本实用新型的目的是提供一种三相电机定子结构， 它的每个铁芯单体绕一 相线圏绕组独立成一相， 每相线圏绕组被完全隔开， 相间绝缘效果非常理想， 并且设置有固定定子铁芯及过线专用的端部绝缘， 降低了三相电机的转矩脉动， 减小了结构噪音， 提高了三相电机的工作效率。  The object of the present invention is to provide a three-phase motor stator structure, each of which has a single phase winding around a phase winding, and each phase winding is completely separated, and the phase-to-phase insulation effect is very good, and It is equipped with a fixed stator core and a special end insulation for the wire, which reduces the torque ripple of the three-phase motor, reduces the structural noise, and improves the working efficiency of the three-phase motor.
本实用新型的目的是通过下述技术方案予以实现的。  The object of the present invention is achieved by the following technical solutions.
一种三相电机定子结构， 包括定子铁芯、 线圏绕组和端部绝缘， 线圏绕组 缠绕在定子铁芯的齿部上， 该定子铁芯由 3个铁芯单体通过其侧部的凹槽和凸 台相互拼合成型， 每个铁芯单体绕一相线圏绕组。 A three-phase motor stator structure comprising a stator core, a wire winding and an end insulation, the wire winding wound on a tooth portion of the stator core, the stator core passing through three sides of the core Groove and convex The stages are combined with each other, and each core unit is wound around a phase winding.
上述所述的每个铁芯单体上设置端部绝缘， 每个铁芯单体凸出 3个齿部并 绕一相线圏绕组， 第一齿的绕线方向与第三齿的绕线方向相同， 但与第二齿相 反。  Each of the iron cores described above is provided with an end insulation, each of the iron cores protruding three teeth and winding around a phase winding, the winding direction of the first teeth and the winding of the third teeth The direction is the same, but opposite to the second tooth.
上述所述的每个铁芯单体的相邻两个齿部之间形成的机械角度 Θ 1相等，相 邻两个铁芯单体之间形成的机械角度 Θ 2相等， θ 1 < Θ 2。  The mechanical angle Θ 1 formed between the adjacent two tooth portions of each of the iron core monomers described above is equal, and the mechanical angle Θ 2 formed between the adjacent two core cores is equal, θ 1 < Θ 2 .
上述所述的每个铁芯单体的轭部侧壁上都开有两个槽口。  Each of the core units described above has two notches on the side wall of the yoke.
上述所述的端部绝缘可以整体注塑， 或者由上、 下端部绝缘扣接成型， 每 个铁芯单体占 120度机械角度。  The end insulation described above may be integrally molded, or may be formed by insulation fastening of the upper and lower ends, and each core unit may occupy a mechanical angle of 120 degrees.
上述所述的端部绝缘的上端设有过线机构， 过线机构包括过线凹槽和设置 在过线凹槽侧边的过线挡板， 每一相线圏绕组的线头从一个齿部沿着过线凹槽 通过过线挡板固定到达下一个齿部。  The upper end of the end insulation is provided with a wire passing mechanism, and the wire passing mechanism comprises a wire groove and a wire baffle disposed on a side of the wire groove, and the wire end of each phase wire winding is from one tooth Along the line groove, it is fixed by the line baffle to the next tooth.
上述所述的端部绝缘开有两个连通上、 下端的通孔， 通孔与铁芯单体轭部 上的槽口相对应， 外用插针从通孔上端插入并穿过槽口从通孔下端穿出后焊接 在 PCB板上， 通过 PCB板的布线将三相线圏绕组连接起来， 通过改变 PCB板的 布线方式来改变三相线圏绕组的连接方式。  The end insulation described above has two through holes communicating with the upper and lower ends, and the through holes correspond to the notches on the yoke portion of the core unit, and the external pins are inserted from the upper end of the through hole and pass through the slot. After the lower end of the hole is pierced, it is soldered on the PCB board, and the three-phase coil winding is connected by the wiring of the PCB board, and the connection manner of the three-phase coil winding is changed by changing the wiring manner of the PCB board.
上述所述的端部绝缘的下端设有定位立柱和安放转子位置感应器件用的凹 槽， 定位立柱插入 PCB板上的定位孔， 固定 PCB板。  The lower end of the end insulation described above is provided with a positioning post and a recess for receiving the rotor position sensing device, and the positioning post is inserted into the positioning hole of the PCB board to fix the PCB board.
本实用新型与现有技术相比具有如下优点： 1 )定子铁芯采用铁芯单体拼合 方式成型， 便于绕线， 可人工替代绕线机对定子铁芯进行绕线， 降低了绕线成 本； 2 )每个铁芯单体绕一相线圏绕组独立成一相， 每相线圏绕组被完全隔开， 相间绝缘效果非常理想， 并且设置有固定定子铁芯及过线专用的端部绝缘， 安 装定位准确， 绕线方便， 降低了三相电机的转矩脉动， 减小了结构噪音， 提高 了三相电机的工作效率； 3 )外用插针从端部绝缘的通孔上端插入并穿过铁芯单 体轭部上的槽口从通孔下端穿出后焊接在 PCB板上， 无需调整三相线圏绕组的 绕线方式， 只通过改变 PCB板的布线方式直接改变三相线圏绕组的连接方式， 降低了工作成本。 Compared with the prior art, the utility model has the following advantages: 1) The stator core is formed by the iron core single assembly method, which is convenient for winding, and can manually replace the winding machine to wind the stator core, thereby reducing the winding cost. 2) Each core unit is wound into a phase independently of a phase winding, each winding is completely separated, the phase-to-phase insulation effect is very good, and the end insulation is fixed for the fixed stator core and the wire. The installation position is accurate, the winding is convenient, the torque ripple of the three-phase motor is reduced, the structural noise is reduced, and the working efficiency of the three-phase motor is improved; 3) the external pin is inserted and worn from the upper end of the end insulated through hole The notch on the yoke portion of the iron core is pierced from the lower end of the through hole and soldered on the PCB. It is not necessary to adjust the winding method of the three-phase winding and the three-phase winding is changed only by changing the wiring mode of the PCB. Winding connection method, Reduced work costs.
附图说明： BRIEF DESCRIPTION OF THE DRAWINGS:
图 1 是本实用新型的定子结构示意图。  Figure 1 is a schematic view of the structure of the stator of the present invention.
图 2 是图 1的俯视图。  Figure 2 is a plan view of Figure 1.
图 3 是本实用新型的铁芯单体绕线圏绕组的过线示意图。  FIG. 3 is a schematic diagram of the wire passing through the winding of the iron core of the present invention.
图 4 是本实用新型的铁芯单体结构图。  Figure 4 is a structural view of the iron core of the present invention.
图 5 是铁芯单体与上、 下端部绝缘的安装示意图。  Figure 5 is a schematic view showing the installation of the iron core unit insulated from the upper and lower ends.
图 6 是本实用新型的上端部绝缘立体图。  Figure 6 is a perspective view of the upper end insulation of the present invention.
图 7 是图 6的俯视图。  Figure 7 is a plan view of Figure 6.
图 8 是本实用新型的下端部绝缘立体图。  Figure 8 is a perspective view of the lower end portion of the present invention.
图 9 是定子结构的应用整体图。  Figure 9 is an overall view of the application of the stator structure.
图 1 0 是图 9的爆炸示意图。  Figure 10 is a schematic diagram of the explosion of Figure 9.
图 1 1 是图 1 0的半剖视图。  Figure 1 1 is a half cross-sectional view of Figure 10.
图 12 是图 9中 PCB的示意图。  Figure 12 is a schematic illustration of the PCB of Figure 9.
具体实施方式： detailed description:
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。  The present invention will be further described in detail below through the specific embodiments and the accompanying drawings.
由图 1、 图 2、 图 3、 图 4可知， 一种三相电机定子结构， 包括定子铁芯 1、 线圏绕组 2和端部绝缘 3 , 线圏绕组 2缠绕在定子铁芯 1的齿部上， 该定子铁芯 1由 3个铁芯单体 4通过其侧部的凹槽 5和凸台 6相互拼合成型，每个铁芯单体 4绕一相线圏绕组 2 , 每个铁芯单体 4占 120度机械角度。  1, FIG. 2, FIG. 3, FIG. 4, a stator structure of a three-phase motor comprising a stator core 1, a winding 2 and an end insulation 3, and the winding 2 is wound around the teeth of the stator core 1. In the upper part, the stator core 1 is formed by three metal cores 4 through the groove 5 and the boss 6 on the side thereof, and each core unit 4 is wound around a phase winding 2, each iron The core unit 4 occupies a mechanical angle of 120 degrees.
其中每个铁芯单体 4上设置端部绝缘 3 ,每个铁芯单体 4凸出 3个齿部并绕 一相线圏绕组 2 ,第一齿的绕线方向与第三齿的绕线方向相同，但与第二齿相反。 每个铁芯单体 4的相邻两个齿部之间形成的机械角度 θ 1相等，相邻两个铁芯单 体 4之间形成的机械角度 Θ 2相等， Θ 1 < Θ 2。 如图 4所示， 每个铁芯单体 4的 轭部侧壁上都开有两个槽口 7。  Each of the core units 4 is provided with an end insulation 3, and each of the core units 4 protrudes 3 teeth and wraps around a phase winding 2, and the winding direction of the first teeth and the winding of the third teeth The lines are in the same direction but opposite to the second teeth. The mechanical angle θ 1 formed between the adjacent two teeth of each core unit 4 is equal, and the mechanical angle Θ 2 formed between the adjacent two core units 4 is equal, Θ 1 < Θ 2. As shown in Fig. 4, two notches 7 are formed in the side wall of the yoke of each of the core units 4.
端部绝缘 3可以整体注塑， 由图 5可知， 也可以由上端部绝缘 31和下端部 绝缘 32两部分扣接成型。 The end insulation 3 can be integrally molded. As can be seen from Fig. 5, the upper end portion 31 and the lower end portion can also be used. Insulation 32 is two-part fastening.
结合图 3、 图 6、 图 7可知， 上端部绝缘 31设有过线机构， 过线机构包括 过线凹槽 8和设置在过线凹槽 8侧边的过线挡板 9 ,过线挡板 9一端设置有挡板 立柱 10。 每一相线圏绕组 2的线头沿顺时针或者逆时针方向从第一个齿部绕过 由挡板立柱 10固定再绕，通过过线挡板 9固定沿着过线凹槽 8到达第二个齿部， 线圏绕组 2的线头以逆时针或者顺时针方向绕第二个齿部， 由挡板立柱 10固定 再绕到达第三个齿部，线圏绕组 2的线头以顺时针或者逆时针方向由过线挡板 9 固定通过过线凹槽 8再绕第三个齿部。  3, 6, and 7, the upper end insulation 31 is provided with a wire passing mechanism, and the wire passing mechanism includes a wire groove 8 and a wire fence 9 disposed on the side of the wire groove 8 A baffle column 10 is disposed at one end of the plate 9. The wire end of each phase winding 2 is wound from the first tooth portion in a clockwise or counterclockwise direction and fixed by the baffle column 10, and is fixed by the wire baffle 9 along the line groove 8 to reach the second line. For the tooth portion, the wire end of the wire winding 2 is wound around the second tooth portion in a counterclockwise or clockwise direction, and is fixed by the baffle column 10 and then wound to reach the third tooth portion, and the wire end of the wire winding 2 is clockwise or reversed. The hour hand direction is fixed by the wire fence 9 through the wire groove 8 and wound around the third tooth portion.
结合图 6、 图 7、 图 8可知， 端部绝缘 3开有两个连通上、 下端的通孔 11 , 通孔 11与铁芯单体 4轭部上的槽口 7相对应。下端部绝缘 32设有空心套管 15 , 空心套管 15嵌入端部绝缘 3的通孔 11 ,连通了上端部绝缘 31和下端部绝缘 32。  As can be seen from Fig. 6, Fig. 7, and Fig. 8, the end insulation 3 has two through holes 11 communicating with the upper and lower ends, and the through holes 11 correspond to the notches 7 on the yoke portion of the core unit 4. The lower end insulation 32 is provided with a hollow sleeve 15 which is fitted into the through hole 11 of the end insulation 3 and communicates the upper end insulation 31 and the lower end insulation 32.
结合图 8至图 12可知， 下端部绝缘 32还设有定位立柱 1 3和安放转子位置 感应器件 20用的凹槽 14 , 定位立柱 1 3插入 PCB板 16上的定位孔 18 , 固定 PCB 板 16 , 转子位置感应器件 20的管脚焊接在 PCB板 16上的焊接点 19。 外用插针 12从端部绝缘 3的通孔 11上端插入并穿过铁芯单体 4轭部上的槽口 7从通孔 11下端穿出后焊接在 PCB板 16上的焊接孔 17固定， 无需调整三相线圏绕组的 绕线方式， 只通过改变 PCB板的布线方式直接改变三相线圏绕组的连接方式。  8 to 12, the lower end insulation 32 is further provided with a positioning post 13 and a recess 14 for receiving the rotor position sensing device 20, and the positioning post 13 is inserted into the positioning hole 18 on the PCB board 16, and the PCB board 16 is fixed. The pins of the rotor position sensing device 20 are soldered to the solder joints 19 on the PCB board 16. The external pin 12 is inserted from the upper end of the through hole 11 of the end insulation 3 and passed through the notch 7 on the yoke portion of the core unit 4, and is passed through the lower end of the through hole 11 and then fixed to the soldering hole 17 soldered on the PCB board 16, There is no need to adjust the winding mode of the three-phase winding and the winding, and the connection mode of the three-phase winding is directly changed by changing the wiring mode of the PCB.
上述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、 筒化， 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。  The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention. All equivalent replacement methods are included in the scope of protection of the present invention.

Claims

权 利 要 求 Rights request
1、 一种三相电机定子结构， 包括定子铁芯、 线圏绕组和端部绝缘， 线圏绕 组缠绕在定子铁芯的齿部上， 其特征在于： 该定子铁芯由 3个铁芯单体通过其 侧部的凹槽和凸台相互拼合成型， 每个铁芯单体绕一相线圏绕组。 1. A three-phase motor stator structure comprising a stator core, a winding and an end insulation, wherein the winding is wound on a tooth of the stator core, wherein: the stator core is composed of three iron cores The body is combined with each other by a groove and a boss at the side thereof, and each core unit is wound around a phase winding.
2、 根据权利要求 1所述的一种三相电机定子结构， 其特征在于： 每个铁芯 单体上设置端部绝缘， 每个铁芯单体凸出 3个齿部并绕一相线圏绕组， 第一齿 的绕线方向与第三齿的绕线方向相同， 但与第二齿相反。  2. The stator structure of a three-phase motor according to claim 1, wherein: each of the cores is provided with an end insulation, and each of the cores protrudes from three teeth and surrounds a phase line. In the winding, the winding direction of the first tooth is the same as the winding direction of the third tooth, but opposite to the second tooth.
3、 根据权利要求 1或 2所述的一种三相电机定子结构， 其特征在于： 每个 铁芯单体的相邻两个齿部之间形成的机械角度 Θ 1相等，相邻两个铁芯单体之间 形成的机械角度 Θ 2相等， Θ 1 < Θ 2。  3. A three-phase motor stator structure according to claim 1 or 2, wherein: the mechanical angle Θ 1 formed between adjacent two tooth portions of each core unit is equal, adjacent to two The mechanical angle Θ 2 formed between the iron cores is equal, Θ 1 < Θ 2.
4、 根据权利要求 1或 2所述的一种三相电机定子结构， 其特征在于： 每个 铁芯单体的轭部侧壁上都开有两个槽口。  4. A three-phase motor stator structure according to claim 1 or 2, wherein: each of the core unit has two notches on the side wall of the yoke.
5、 根据权利要求 1所述的一种三相电机定子结构， 其特征在于： 端部绝缘 可以整体注塑，或者由上下端部绝缘扣接成型，每个铁芯单体占 120度机械角度。  5. A three-phase motor stator structure according to claim 1, wherein: the end insulation can be integrally molded, or can be formed by insulation fastening at the upper and lower ends, each core unit occupying a mechanical angle of 120 degrees.
6、 根据权利要求 1或 5所述的一种三相电机定子结构， 其特征在于： 端部 绝缘的上端设有过线机构， 过线机构包括过线 槽和设置在过线 槽侧边的过 线挡板， 每一相线圏绕组的线头从一个齿部通过过线挡板固定沿着过线凹槽到 达下一个齿部。  The stator structure of a three-phase motor according to claim 1 or 5, wherein: the upper end of the end insulation is provided with a wire passing mechanism, and the wire passing mechanism comprises a wire passing groove and a side of the wire groove Through the wire baffle, the wire end of each phase wire winding is fixed from one tooth portion through the wire baffle along the wire groove to the next tooth portion.
7、 根据权利要求 1或 5所述的一种三相电机定子结构， 其特征在于： 端部 绝缘开有两个连通上、 下端的通孔， 通孔与铁芯单体轭部上的槽口相对应， 外 用插针从通孔上端插入并穿过槽口从通孔下端穿出后焊接在 PCB板上，通过 PCB 板的布线将三相线圏绕组连接起来， 通过改变 PCB板的布线方式来改变三相线 圏绕组的连接方式。  7. A three-phase motor stator structure according to claim 1 or 5, wherein: the end portion is insulated with two through holes communicating the upper and lower ends, and the through hole and the slot on the core yoke portion Corresponding to the mouth, the external pin is inserted from the upper end of the through hole and passed through the slot from the lower end of the through hole and then soldered on the PCB. The three-phase winding is connected by the wiring of the PCB, and the wiring of the PCB is changed. The way to change the connection of the three-phase windings.
8、 根据权利要求 1或 5所述的一种三相电机定子结构， 其特征在于： 端部 绝缘的下端设有定位立柱和安放转子位置感应器件用的凹槽，定位立柱插入 PCB 板上的定位孔， 固定 PCB板。  8. A three-phase motor stator structure according to claim 1 or 5, wherein: the lower end of the end insulation is provided with a positioning post and a recess for receiving the rotor position sensing device, and the positioning post is inserted into the PCB board. Position the hole and fix the PCB board.
PCT/CN2010/070359 2009-04-29 2010-01-26 Stator structure for three-phase motor WO2010124534A1 (en)

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