WO2011012079A1 - 一种电机 - Google Patents

一种电机 Download PDF

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Publication number
WO2011012079A1
WO2011012079A1 PCT/CN2010/075542 CN2010075542W WO2011012079A1 WO 2011012079 A1 WO2011012079 A1 WO 2011012079A1 CN 2010075542 W CN2010075542 W CN 2010075542W WO 2011012079 A1 WO2011012079 A1 WO 2011012079A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
end cover
stator
groove
rotor
Prior art date
Application number
PCT/CN2010/075542
Other languages
English (en)
French (fr)
Inventor
卢平
陈福成
Original Assignee
中山大洋电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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 WO2011012079A1 publication Critical patent/WO2011012079A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the utility model relates to a motor.
  • the contact surface between the end cover and the stator core is mostly flat, so when assembling, the positioning of each component Poor performance, relative movement will occur, assembly difficulties will reduce production efficiency, and the concentricity of the front and rear end covers and the inner circle of the stator core cannot be guaranteed to meet the design requirements, causing the motor to run due to uneven magnetic tension, resulting in the mechanical machinery of the motor The loss is large, the electromagnetic noise is large, and the overall performance of the motor is reduced; 3)
  • the structural design of the front cover and the rear cover is unreasonable, the heat dissipation is poor, and the installation is inconvenient.
  • the purpose of the utility model is to provide a motor with simple structure, easy assembly, good heat dissipation, accurate positioning among components, accurate and stable speed measurement, and reasonable layout.
  • a motor including a stator, a rotor, a front end cover and a back end cover.
  • the rotor is installed in the stator.
  • the stator is composed of a stator iron core and stator windings.
  • the stator windings are embedded in the slots of the stator iron core.
  • the rotating shaft on the rotor The two ends are respectively installed in the bearing housings of the front end cover and the rear end cover through bearings.
  • the bearing seat is located in the center of the ring-shaped cover and is connected by connecting ribs.
  • a first heat dissipation hole is formed between the connecting ribs.
  • Four support legs extend axially from the edge of the ring-shaped cover.
  • a second heat dissipation hole is formed between the supporting legs, and a groove is opened in the bottom surface of the groove.
  • the front end cover, the stator core and the rear end cover are connected in series through the screws and nuts in the groove. It protrudes from the bearing seat of the rear end cover, and is equipped with a magnetic ring on the protruding end of the rotating shaft.
  • a cover is arranged on the outside of the rotating shaft.
  • a speed measuring circuit board is installed in the outer cover. The speed measuring circuit board is equipped with Hall elements. The component is located next to the magnetic ring, and the outer cover has an opening for the signal line to lead out.
  • a pulley is installed on the end of the rotating shaft that extends out of the front end cover as described above.
  • the end edge of the stator core described above is provided with four positions corresponding to the support legs
  • the top of the support foot is embedded in the groove, and the inner side of the top of the support foot is provided with an arc surface to match the arc surface of the inner wall of the groove.
  • Both ends of the rotor core of the aforementioned rotor are equipped with fans, and the rotor core and the fan are integrally cast.
  • the above-mentioned front end cover is provided with mounting lugs on both sides, a plurality of mounting holes are provided on the surface of the mounting lug, and the mounting lug is connected to one of the supporting legs through a reinforcing rib.
  • the above-mentioned outer cover is provided with a flange at the top opening, and the outer cover is installed in the bearing seat of the rear end cover by screws.
  • the shape of the stator core described above is square, rounded at four corners, its side length L is in the range of 100mm ⁇ 110mm, the inner diameter D is in the range of 65mm ⁇ 75mm, and the number of cogging slots It is 2 4 , the diameter range of the arc surface of the inner wall of the groove is: 110 nm to 1 U nm, and the tooth groove shape is a flat-bottomed U-shaped groove.
  • a connecting plate can be provided between the two supporting legs of the front end cover mentioned above.
  • the end surface of the connecting plate is provided with a through hole and a cylinder with a screw hole in the middle.
  • bosses and screw holes that are matched with the through holes and the cylinders, and the bosses are embedded in the through holes. Screws can be passed through the screw holes and screw holes to lock the terminal on the connecting plate.
  • the terminal of the machine can also be inserted into one side of the groove through the slot key on the end face, and fastened on one end face of the stator
  • the aforementioned front end cover and rear end cover are all casted from aluminum or aluminum alloy materials.
  • the utility model has the following effects: 1) The outer cover is locked on the outside of the bearing seat of the rear end cover by screws, and the speed measuring circuit board with Hall element and the magnetic ring are installed in the outer cover.
  • the structure is compact, the sealing performance is good, and it is waterproof and dustproof.
  • the internal temperature rise of the motor has little effect on the magnetic ring, and the magnetic field fluctuation is relatively stable, which ensures that the Hall element can detect the accurate magnetic field signal with high detection accuracy;
  • the inner arc surface of the top of the support foot and the stator core The arc surfaces of the inner walls of the grooves are positioned and fitted, and the positioning is accurate, which facilitates rapid assembly.
  • the structure layout is reasonable, the structure cost is low, and the heat dissipation performance is very good; 4) Both ends of the rotor core are equipped with fans, The rotor core and the fan are integrally cast and formed, with a stable structure and good heat dissipation performance; 5) The supporting legs are recessed inward, which is convenient and fast for screw installation and disassembly, and reduces the structure cost; 6) The installation method of the motor terminal Various styles, simple installation and stable structure.
  • Fig. 1 is a perspective view of the utility model when no connection terminals are installed.
  • Fig. 2 is a perspective view of Fig. 1 from another angle.
  • Figure 3 is an exploded view of Figure 1.
  • Fig. 4 is a cross-sectional view of Fig. 1.
  • Figure 5 is a perspective view of the front end cover of the present invention.
  • Fig. 6 is an end view of Fig. 5.
  • Figure 7 is a perspective view of the rear end cover of the present invention.
  • Fig. 8 is an end view of Fig. 7.
  • Figure 9 is a perspective view of the stator core of the present invention.
  • Fig. 10 is a schematic plan view of Fig. 9.
  • Figure 11 is a schematic diagram of the structure of the speed measuring circuit board of the present invention.
  • Figure 12 is a schematic diagram of the structure of the outer cover of the present utility model.
  • Figure 13 is a schematic diagram of the structure of the connection terminal in the present utility model.
  • Figure 14 is the first perspective view of the utility model after the terminal is installed.
  • Figure 15 is the second perspective view of the utility model after the terminal is installed.
  • a motor includes a stator 1, a rotor 2, and a front end cover 3 And the rear cover 4, where: the rotor 2 is installed in the stator 1, the stator 1 is composed of a stator core 11 and a stator winding 12, the stator winding 12 is embedded in the slot 31 of the stator core 11, and the rotating shaft 22 on the rotor 2 The two ends are respectively installed in the bearing seats 51, 52 of the front end cover 3 and the rear end cover 4 through bearings.
  • the front end cover 3 and the rear end cover 4 are supported by the bearing seats 51, 52, the connecting ribs 6, the annular cover 7 and
  • the leg 8 is composed of the shaft 7 and the seats 51, 52 located in the center of the ring-shaped cover 7 and connected by the connecting ribs 6.
  • the first radiating holes 19 are formed between the connecting ribs 6 and extend axially from the edge of the ring-shaped cover 7
  • Four supporting legs 8 are formed, a second heat dissipation hole 29 is formed between the supporting legs 8, a groove 9 is opened in the supporting leg 8, and a through hole 10 is opened on the bottom surface of the groove 9 through the screw 13 and the nut in the groove 9 14
  • the front end cover 3, the stator core 11 and the rear end cover 4 are connected in series, the tail of the rotating shaft 22 protrudes from the bearing seat 52 of the rear end cover 4, and a magnetic ring 15 is installed at the protruding end of the rotating shaft 22.
  • An outer cover 16 is provided on the outside of the outer cover 16, and a speed measuring circuit board 17 is installed inside the outer cover 16.
  • the speed measuring circuit board 17 is provided with a Hall element 18, which is located beside the magnetic ring 15. Opening 20.
  • a pulley 24 is installed on the end of the rotating shaft 22 protruding from the front end cover 3; four grooves 23 corresponding to the positions of the supporting feet 8 are provided on the edge of the stator core 11, and the top of the supporting feet 8 is embedded in the groove 23, A circular arc surface 81 is provided on the inner side of the top of the supporting leg 8 to match the circular arc surface 231 of the inner wall of the groove 23; both ends of the rotor core 21 of the rotor 2 are provided with a fan 30, and the rotor core 21 and the fan 30 are formed by casting; Mounting lugs 25 are provided on both sides of the front end cover 3, a plurality of mounting holes 26 are provided on the surface of the mounting lugs 25, and the mounting lugs 25 are connected to one of the supporting feet 8 through reinforcing ribs 27; Side 28, install the outer cover 16 in the bearing seat 52 of the rear end cover 4 by screws; the stator core
  • the shape of 11 is square, rounded at four corners, its side length L is in the range of
  • the screw holes 322 and the boss 321 are embedded in the through holes 821, and screws can be passed through the screw holes 322 and the screw holes 822 to lock the terminal 32 on the connecting plate 82; the front cover 3, the rear cover 4 and the fan 30 are all made of Casting of aluminum or aluminum alloy material.
  • a motor includes a stator 1, a rotor 2, a front end cover 3, and a rear end cover 4.
  • the rotor 2 is installed in the stator 1, and the stator 1 is composed of a stator core 11 and a stator winding 12
  • the stator winding 12 is embedded in the slot 31 of the stator core 11, the two ends of the shaft 22 on the rotor 2 are installed in the bearing seats 51, 52 of the front end cover 3 and the rear end cover 4 through bearings, and the front end cover 3 and
  • the rear end cover 4 is composed of bearing seats 51, 52, connecting ribs 6, a ring-shaped cover body 7, and a supporting leg 8.
  • the shaft 7 seats 51, 52 are located in the center of the ring-shaped cover body 7 and are connected by connecting ribs 6, and the connecting ribs
  • a first heat dissipation hole 19 is formed between the strips 6, four supporting legs 8 extend axially from the edge of the ring-shaped cover 7, and a second heat dissipation hole 29 is formed between the supporting legs 8, and the supporting legs 8 are opened inwardly.
  • Slot 9, the bottom surface of the groove 9 is provided with a through hole 10, and the front end cover 3, the stator core 11 and the rear end cover 4 are connected in series through the screw 13 and the nut 14 in the groove 9.
  • the tail of the rotating shaft 22 is from the rear end cover 4
  • the bearing housing 52 extends and is in A magnetic ring 15 is installed at the protruding end of the rotating shaft 22, an outer cover 16 is arranged on the outside of the rotating shaft 22, a speed measuring circuit board 17 is installed inside the outer cover 16, and a Hall element 18 is provided on the speed measuring circuit board 17, and the Hall element 18 is located in the magnetic ring
  • the outer cover 16 is provided with an opening 20 through which signal lines can be led out.
  • a pulley 24 is installed on the end of the rotating shaft 22 protruding from the front end cover 3; four grooves 23 corresponding to the positions of the supporting feet 8 are provided on the edge of the stator core 11, and the top of the supporting feet 8 is embedded in the groove 23, A circular arc surface 81 is provided on the inner side of the top of the supporting leg 8 to match the circular arc surface 231 of the inner wall of the groove 23; both ends of the rotor core 21 of the rotor 2 are provided with a fan 30, and the rotor core 21 and the fan 30 are formed by casting; Mounting lugs 25 are provided on both sides of the front end cover 3, a plurality of mounting holes 26 are provided on the surface of the mounting lugs 25, and the mounting lugs 25 are connected to one of the supporting feet 8 through reinforcing ribs 27; On side 28, install the outer cover 16 in the bearing seat 52 of the rear cover 4 by screws; the shape of the stator core 11 is square, rounded at four corners, and its side length L is in the range: 100
  • stator core 11 15 that two corresponding end surfaces of the stator core 11 are provided with grooves 111, and the terminal 32 of the motor can be inserted into one side of the groove 111 through the slot key 323 on the end surface, and fastened to One end surface of the stator core 11; the front end cover 3, the rear end cover 4 and the fan 30 are all casted from aluminum or aluminum alloy materials.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)

Description

一种电机 技术领域 ：
本实用新型涉及一种电机。
背景技术 ：
目前， 一般的洗衣机电机存在如下缺点： 1 )测速器设置在电机 内部， 需要增加电机内部的体积， 从而增加了设计成本； 电机内部温 升较高， 对磁块或磁环的影响较大， 磁场波动不稳定， 带霍尔元件的 测速器不能检测到准确的磁场信号， 检测精确度低； 2 )端盖与定子 铁芯的接触面多为平面形状， 因此在装配时， 各组件的定位性差， 会 发生相对移动， 装配困难， 降低生产效率， 且无法保证前、 后端盖与 定子铁芯内圓的同心度达到设计要求，使电机在运行时因磁拉力不均 匀， 导致电机的机械损耗大， 电磁噪音大， 降低了电机的整体性能； 3 )前端盖和后端盖的结构设计不合理， 散热差， 安装不方便。
发明内容：
本实用新型的目的是提供一种电机， 它结构筒单， 装配容易、 散 热较好， 各组件之间定位准确， 测速准确稳定， 布局合理。
本实用新型的目的是通过下述技术方案予以实现的。
一种电机， 包括定子、 转子、 前端盖和后端盖， 其中： 转子安装 在定子里面， 定子由定子铁芯和定子绕组组成， 定子绕组嵌入到定子 铁芯的齿槽里面，转子上的转轴两端分别通过轴承安装在前端盖和后 端盖的轴承座里面， 前端盖和后端盖由轴承座、 连接筋条、 环状盖体 和支撑脚组成， 轴承座位于环状盖体中央并用连接筋条连接起来， 连 接筋条之间形成第一散热孔，从环状盖体的边缘处轴向伸出四根支撑 脚， 支撑脚之间形成第二散热孔， 支撑脚往内开出凹槽， 凹槽底面开 有通孔， 通过凹槽里面的螺釘、 螺母将前端盖、 定子铁芯和后端盖串 联连接起来， 转轴尾部从后端盖的轴承座伸出， 并在转轴的伸出端安 装有磁环， 在转轴的外面设置有外罩， 外罩里面安装有测速线路板， 测速线路板上设有霍尔元件， 霍尔元件位于磁环旁边， 外罩上开有可 供信号线引出的开口。
上述所述的伸出前端盖的转轴端部上安装皮带轮。
上述所述的定子铁芯的端部边缘设置四个与支撑脚位置对应的
W槽， 支撑脚的顶部嵌入到 槽里面， 支撑脚顶部内侧设置圓弧面和 凹槽的内壁圓弧面相配合。
上述所述的转子的转子铁芯两端都设有风扇，转子铁芯与风扇一 体铸造成型。
上述所述的前端盖的两侧设置有安装凸耳，安装凸耳表面上设置 多个安装孔， 安装凸耳通过加强筋与其中一个支撑脚连接起来。
上述所述的外罩顶部开口处设置翻边，通过螺釘将外罩安装在后 端盖的轴承座里面。
上述所述的定子铁芯的形状为方形， 在四个角进行倒圓角， 它的 边长 L长度范围是： 1 00mm ~ 1 1 0mm, 内径 D尺寸范围为： 65mm ~ 75mm, 齿槽数为 24 , 凹槽的内壁圓弧面的直径范围： 1 1 0匪 〜 1 U匪， 齿槽 形状是平底的 U型槽。 在上述所述的前端盖的其中两个支撑脚之间可设一连接板，连接 板端面上设有通孔和中间开有螺孔的柱体，电机的接线端子的壳体一 端面上开有分别与通孔、 柱体相配合的凸台、 螺釘孔， 凸台嵌入通孔 里面， 可用螺釘穿过螺釘孔和螺孔将接线端子锁紧在连接板上。 机的接线端子也可以通过其端面上的槽键嵌入到凹槽一侧内，紧固在 定子铁芯的其中一端面上。
上述所述的前端盖、 后端盖都是由铝或铝合金材料铸造成型的。 本实用新型具有如下效果： 1 )外罩通过螺釘锁紧在后端盖的轴 承座外面， 带霍尔元件的测速线路板和磁环都安装在外罩内， 结构紧 凑， 密封性能好， 防水防尘， 电机内部温升对磁环的影响很小， 磁场 波动较稳定， 确保了霍尔元件能够检测到准确的磁场信号，检测精度 较高； 2 ) 支撑脚顶部的内侧圓弧面与定子铁芯的 槽的内壁圓弧面 定位相嵌配合， 定位准确， 方便了快速装配， 各组件间不会发生相对 移动， 装配筒单方便， 提高了生产效率， 且确保了前端盖、 后端盖与 定子所在圓的同心度达到设计要求，使电机在运行时不会因偏心而产 生磁拉力， 电机运行平稳， 机械损耗小， 电磁噪音小， 提高了电机的 整体性能； 3 )前端盖或者后端盖的连接筋体之间设有第一散热孔， 支撑脚之间形成第二散热孔， 结构布局合理， 结构成本较低， 散热性 能非常好； 4 )转子铁芯的两端都设有风扇， 转子铁芯与风扇一体铸 造成型， 结构稳固， 散热性能好； 5 ) 支撑脚往内开出凹槽， 螺釘安 装、 拆卸方便快速， 且降低了结构成本； 6 ) 电机的接线端子安装方 式多样， 安装筒单方便， 结构稳固。
附图说明：
图 1 是本实用新型中未安装接线端子时的立体图。
图 2 是图 1的另一角度的立体图。
图 3 是图 1的爆炸图。
图 4 是图 1的剖视图。
图 5 是本实用新型中前端盖的立体图。
图 6 是图 5的端面视图。
图 7 是本实用新型中后端盖的立体图。
图 8 是图 7的端面视图。
图 9 是本实用新型中定子铁芯的立体图。
图 10 是图 9的平面示意图。
图 11 是本实用新型中测速线路板的结构示意图。
图 12 是本实用新型中外罩的结构示意图。
图 1 3 是本实用新型中接线端子的结构示意图。
图 14 是本实用新型安装接线端子后的第一种立体图。
图 15 是本实用新型安装接线端子后的第二种立体图。
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。
具体实施例 1
如图 1至图 12所示， 一种电机， 包括定子 1、 转子 2、 前端盖 3 和后端盖 4, 其中： 转子 2安装在定子 1里面， 定子 1由定子铁芯 11 和定子绕组 12组成，定子绕组 12嵌入到定子铁芯 11的齿槽 31里面， 转子 2上的转轴 22两端分别通过轴承安装在前端盖 3和后端盖 4的 轴承座 51, 52里面， 前端盖 3和后端盖 4由轴承座 51, 52、 连接筋 条 6、 环状盖体 7和支撑脚 8组成， 轴 7 座 51, 52位于环状盖体 7 中央并用连接筋条 6连接起来， 连接筋条 6之间形成第一散热孔 19, 从环状盖体 7的边缘处轴向伸出四根支撑脚 8, 支撑脚 8之间形成第 二散热孔 29, 支撑脚 8往内开出凹槽 9, 凹槽 9底面开有通孔 10, 通过凹槽 9里面的螺釘 13、 螺母 14将前端盖 3、 定子铁芯 11和后端 盖 4串联连接起来， 转轴 22尾部从后端盖 4的轴承座 52伸出， 并在 转轴 22的伸出端安装有磁环 15 , 在转轴 22的外面设置有外罩 16, 外罩 16里面安装测速线路板 17,测速线路板 17上设有霍尔元件 18, 霍尔元件 18位于磁环 15旁边， 外罩 16上开有可供信号线引出的开 口 20。
其中伸出前端盖 3的转轴 22端部上安装皮带轮 24;定子铁芯 11 的端部边缘设置四个与支撑脚 8位置对应的凹槽 23, 支撑脚 8的顶 部嵌入到凹槽 23里面， 支撑脚 8顶部内侧设置圓弧面 81和凹槽 23 的内壁圓弧面 231相配合；转子 2的转子铁芯 21两端都设有风扇 30, 转子铁芯 21与风扇 30—体铸造成型；前端盖 3的两侧设置有安装凸 耳 25, 安装凸耳 25表面上设置多个安装孔 26, 安装凸耳 25通过加 强筋 27与其中一个支撑脚 8连接起来；外罩 16顶部开口处设置翻边 28，通过螺釘将外罩 16安装在后端盖 4的轴承座 52里面； 定子铁芯 11的形状为方形， 在四个角进行倒圓角， 它的边长 L长度范围是： 100mm ~ 110mm, 内径 D尺寸范围为： 65mm ~ 75mm, 齿槽数为 24 , 凹 槽 23的内壁圓弧面 231的直径范围： 110 112mm, 齿槽 31形状是 平底的 U型槽； 在前端盖 3的其中两个支撑脚 8之间可设一连接板 82 , 连接板 82端面上设有通孔 821和中间开有螺孔 822的柱体 823 , 结合图 13、 图 14可知， 电机的接线端子 32的壳体一端面上开有分 别与通孔 821、 柱体 823相配合的凸台 321、 螺釘孔 322 , 凸台 321 嵌入通孔 821里面，可用螺釘穿过螺釘孔 322和螺孔 822将接线端子 32锁紧在连接板 82上； 前端盖 3、后端盖 4和风扇 30都是由铝或铝 合金材料铸造成型的。
具体实施例 2
如图 1至图 12所示， 一种电机， 包括定子 1、 转子 2、 前端盖 3 和后端盖 4 , 其中： 转子 2安装在定子 1里面， 定子 1由定子铁芯 11 和定子绕组 12组成，定子绕组 12嵌入到定子铁芯 11的齿槽 31里面， 转子 2上的转轴 22两端分别通过轴承安装在前端盖 3和后端盖 4的 轴承座 51 , 52里面， 前端盖 3和后端盖 4由轴承座 51 , 52、 连接筋 条 6、 环状盖体 7和支撑脚 8组成， 轴 7 座 51 , 52位于环状盖体 7 中央并用连接筋条 6连接起来， 连接筋条 6之间形成第一散热孔 19 , 从环状盖体 7的边缘处轴向伸出四根支撑脚 8 , 支撑脚 8之间形成第 二散热孔 29 , 支撑脚 8往内开出凹槽 9 , 凹槽 9底面开有通孔 10 , 通过凹槽 9里面的螺釘 13、 螺母 14将前端盖 3、 定子铁芯 11和后端 盖 4串联连接起来， 转轴 22尾部从后端盖 4的轴承座 52伸出， 并在 转轴 22的伸出端安装有磁环 15 , 在转轴 22的外面设置有外罩 16, 外罩 16里面安装测速线路板 17,测速线路板 17上设有霍尔元件 18, 霍尔元件 18位于磁环 15旁边， 外罩 16上开有可供信号线引出的开 口 20。
其中伸出前端盖 3的转轴 22端部上安装皮带轮 24;定子铁芯 11 的端部边缘设置四个与支撑脚 8位置对应的凹槽 23, 支撑脚 8的顶 部嵌入到凹槽 23里面， 支撑脚 8顶部内侧设置圓弧面 81和凹槽 23 的内壁圓弧面 231相配合；转子 2的转子铁芯 21两端都设有风扇 30, 转子铁芯 21与风扇 30—体铸造成型；前端盖 3的两侧设置有安装凸 耳 25, 安装凸耳 25表面上设置多个安装孔 26, 安装凸耳 25通过加 强筋 27与其中一个支撑脚 8连接起来；外罩 16顶部开口处设置翻边 28，通过螺釘将外罩 16安装在后端盖 4的轴承座 52里面； 定子铁芯 11的形状为方形， 在四个角进行倒圓角， 它的边长 L长度范围是： 100mm ~ 110mm, 内径 D尺寸范围为： 65mm~ 75mm, 齿槽数为 24, 凹 槽 23的内壁圓弧面 231的直径范围： 110匪〜 112mm, 齿槽 31形状是 平底的 U型槽； 结合图 13、 图 15可知， 在定子铁芯 11的其中两个 相对应的端面上设有凹槽 111, 电机的接线端子 32可以通过其端面 上的槽键 323嵌入到凹槽 111一侧内， 紧固在定子铁芯 11的其中一 端面上； 前端盖 3、 后端盖 4和风扇 30都是由铝或铝合金材料铸造 成型的。
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。

Claims

权利要求
1、 一种电机， 包括定子（ 1 )、 转子（ 2 )、 前端盖（ 3 )和后端盖 (4), 其中： 转子（2 )安装在定子（1 )里面， 定子（1 ) 由定子铁 芯（ 11 )和定子绕组（ 12 )组成，定子绕组（ 12 )嵌入到定子铁芯（ 11 ) 的齿槽（ 31 )里面， 转子（ 2 )上的转轴（ 22 ) 两端分别通过轴承安 装在前端盖（ 3 )和后端盖（ 4 )的轴承座（51, 52 )里面， 其特征在 于： 前端盖（ 3 )和后端盖（ 4 ) 由轴承座（51, 52 )、 连接筋条（ 6 )、 环状盖体（ 7 )和支撑脚（ 8 )组成， 轴承座（51, 52)位于环状盖体
(7) 中央并用连接筋条（6)连接起来， 连接筋条（6)之间形成第 一散热孔（ 19 ), 从环状盖体（ 7 )的边缘处轴向伸出四根支撑脚（ 8 )， 支撑脚（8 )之间形成第二散热孔（29), 支撑脚（8 )往内开出凹槽
(9), 凹槽（ 9 )底面开有通孔（10),通过凹槽（9)里面的螺釘（13)、 螺母（ I4 )将前端盖（ 3 )、 定子铁芯 （ 11 )和后端盖（ 4 ) 串联连接 起来， 转轴（ 22 )尾部从后端盖（ 4 ) 的轴承座（ 52 )伸出， 并在转 轴（ 22 ) 的伸出端安装有磁环 （ I5 ) , 在转轴（ 22 ) 的外面设置有 外罩（16),外罩（16)里面安装有测速线路板（17),测速线路板（17) 上设有霍尔元件（ 18 ), 霍尔元件（ 18 )位于磁环（ 15 ) 旁边， 外罩
( 16)上开有可供信号线引出的开口 （20)。
2、 根据权利要求 1所述的一种电机， 其特征在于： 伸出前端盖 ( 3 ) 的转轴（ 22 )端部上安装皮带轮（ 24 )。
3、 根据权利要求 1或 2所述的一种电机， 其特征在于： 定子铁 芯 （ 11 ) 的端部边缘设置四个与支撑脚（ 8 )位置对应的凹槽（ 23 ), 支撑脚（ 8 )的顶部嵌入到凹槽（ 23 )里面， 支撑脚（ 8 )顶部内侧设 置圓弧面 （si )和凹槽（23) 的内壁圓弧面 （ I )相配合。
4、 根据权利要求 1所述的一种电机， 其特征在于： 转子（2)的 转子铁芯（ )两端都设有风扇 （ 30 ), 转子铁芯（ 21 )与风扇 （ 30 ) 一体铸造成型。
5、 根据权利要求 3所述的一种电机， 其特征在于： 前端盖（3) 的两侧设置有安装凸耳（25), 安装凸耳（25)表面上设置多个安装 孔（ 26 ), 安装凸耳（ 25 )通过加强筋 （ 27 )与其中一个支撑脚（ 8 ) 连接起来。
6、 根据权利要求 1所述的一种电机， 其特征在于： 外罩（16) 顶部开口处设置翻边（ 28 )，通过螺釘将外罩（ 16 )安装在后端盖（ 4 ) 的轴7 座（52)里面。
7、 根据权利要求 3所述的一种电机，其特征在于：定子铁芯（ 11 ) 的形状为方形， 在四个角进行倒圓角， 它的边长 L长度范围是： 100mm ~ 110mm, 内径 D尺寸范围为： 65mm~75mm, 齿槽数为 24, 凹 槽（23) 的内壁圓弧面 （231 ) 的直径范围： 110mm ~ 112mm, 所述的 齿槽（ 31 )形状是平底的 U型槽。
8、 根据权利要求 1或 5所述的一种电机， 其特征在于： 在前端 盖（ 3 )的其中两个支撑脚（ 8 )之间可设一连接板 ( 82 ), 连接板（ 82 ) 端面上设有通孔（821 )和中间开有螺孔（ 822 )的柱体（ 823 ), 电机 的接线端子（ 32 )的壳体一端面上开有分别与通孔（ 821 )、柱体（ 823 ) 相配合的凸台 （321)、 螺釘孔（ 322 ), 凸台 （321 )嵌入通孔（821 ) 里面， 可用螺釘穿过螺釘孔（ 322 )和螺孔（ 822 )将接线端子（ 32 ) 锁紧在连接板（82 )上。
9、 根据权利要求 1或 7所述的一种电机， 其特征在于： 在定子 铁芯（ 11 )的其中两个相对应的端面上设有凹槽（ 111 ), 电机的接线 端子（ 32 )也可以通过其端面上的槽键 ( 323 )嵌入到凹槽（ 111 )一 侧内， 紧固在定子铁芯 （11 ) 的其中一端面上。
10、 根据权利要求 1所述的一种电机，其特征在于：前端盖（ 3 )、 后端盖 （4 )都是由铝或铝合金材料铸造成型的。
PCT/CN2010/075542 2009-07-31 2010-07-29 一种电机 WO2011012079A1 (zh)

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