WO2017028356A1 - 一种直流无刷电机 - Google Patents

一种直流无刷电机 Download PDF

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Publication number
WO2017028356A1
WO2017028356A1 PCT/CN2015/090111 CN2015090111W WO2017028356A1 WO 2017028356 A1 WO2017028356 A1 WO 2017028356A1 CN 2015090111 W CN2015090111 W CN 2015090111W WO 2017028356 A1 WO2017028356 A1 WO 2017028356A1
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Prior art keywords
stator
rear end
plastic
casing sleeve
brushless
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PCT/CN2015/090111
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English (en)
French (fr)
Inventor
唐松发
邬拥华
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中山大洋电机股份有限公司
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Priority to US15/368,509 priority Critical patent/US10468933B2/en
Publication of WO2017028356A1 publication Critical patent/WO2017028356A1/zh

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    • 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

Definitions

  • the utility model relates to a direct current brushless motor, belonging to the technical field of motors.
  • the conventional brushless DC motor includes a rotating shaft A1, a rotor assembly A2, a stator assembly A3, a casing A4, a front end cover A5, a rear end cover A6, a motor controller A7, and a plurality of screws A8.
  • the rotor assembly A2 is mounted on the rotating shaft A1, and the stator assembly A3 and the casing A4 are mounted together and nested outside the rotor assembly A2, and the front end cover A5 and the rear end cover A6 are respectively mounted on both ends of the casing A4 by screws A8.
  • the motor controller A7 is mounted on the rear end cover A6 by the screw A8.
  • the installation of the existing brushless DC motor is troublesome. First, the front end cover and the rear end cover are respectively installed on the two ends of the casing by screws, and then the motor controller is installed on the rear end cover by screws, and the assembly efficiency is low. The material and labor costs required are relatively high.
  • the existing DC plastic motor includes a rotating shaft, a rotor assembly, a plastic stator and an end cover.
  • the rotor assembly is mounted on the rotating shaft, and the plastic sealing stator is nested outside the rotor assembly.
  • the outer wall surface of the plastic sealing stator is very smooth, the hoop body is usually used.
  • the method of tightly sealing the stator realizes the installation of the DC plastic-sealed motor, but the installation method has low reliability and the structure is not strong, and the installation may be loose or even fall off during long-term use.
  • the purpose of the utility model is to provide a DC brushless motor, which has a simple and firm structure and ensures reliability.
  • a DC brushless motor includes a motor body and a motor controller, wherein the motor controller includes a control The box and the control circuit board, the motor body is a plastic body, comprising a rotating shaft, a rotor assembly, a plastic sealing stator, a front end cover and a rear end cover, the rotor assembly is mounted on the rotating shaft, the plastic sealing stator is nested outside the rotor assembly, and the front end cover is installed at the front end cover On the front end portion of the molded stator, an organic casing sleeve is set on the outside of the plastic stator, and the rear end of the casing sleeve extends axially from the rear end portion of the plastic stator, and the control box is installed at the rear end portion of the casing sleeve Forming a cavity between the control box and the casing sleeve, the rear end cover and the control circuit board are mounted in the cavity, and a bayonet opening is formed on the front end portion of the casing sleeve,
  • the plastic-sealed stator comprises a stator core, an end insulation, a coil winding and a plastic-clad outer casing, the end insulation is mounted on the end surface of the stator core, the coil winding is wound on the end insulation, and the plastic-sealed casing insulates the stator core and the end
  • the coil winding and the front end cover are integrally connected.
  • the outer surface of the stator core is bare, and the casing sleeve is sleeved outside the molded stator and is in contact with the exposed outer surface of the stator core.
  • the bump being disposed on the first stop, the casing sleeve being sleeved outside the plastic stator and the front end of the casing sleeve and the first A stop.
  • control box mounted on the rear end of the casing sleeve and engaging the rear end of the casing sleeve with the second stop.
  • the above is provided with a card slot on the top of the control box, and a card block is arranged on the rear end portion of the casing sleeve, and the card block is nested inside the card slot.
  • a plurality of mounting brackets are mounted on the outside of the casing sleeve.
  • the above also includes a plurality of screws, the rear end cover is mounted on the rear end portion of the plastic stator by screws, and the control box and the rear end cover are mounted together by screws.
  • the organic shell sleeve is set on the outer side of the plastic stator, and the bayonet is opened on the front end portion of the casing sleeve, and the outer wall surface of the plastic stator is provided with a bump, and the bump is nested inside the bayonet, and the structure thereof Simple, the casing is installed firmly, it is not easy to rotate, and the reliability is guaranteed;
  • the casing sleeve is set outside the plastic sealing stator and is in contact with the exposed outer surface of the stator core, and the interference fit between the two, the casing sleeve and the plastic sealing stator are firmly combined, and are not easy to loose or loose. Reliability is guaranteed.
  • a card slot is arranged on the top of the control box, and a card block is arranged on the rear end portion of the casing sleeve, and the card block is nested inside the card slot, and the card slot is matched with the card block, thereby further improving the preventing machine The effect of shell rotation;
  • FIG. 1 is a perspective view of a conventional DC brushless motor
  • Figure 3 is a perspective view of a DC brushless motor in the embodiment
  • Figure 4 is an exploded view of a DC brushless motor in the embodiment
  • Figure 5 is a plan view of a DC brushless motor in the embodiment
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is a perspective view of the motor body in the embodiment.
  • Figure 8 is a perspective view of the motor controller in the embodiment.
  • Embodiment 1 As shown in FIG. 3 to FIG. 8 , this embodiment is a DC brushless motor including a motor body 1 and a motor controller 2 , wherein the motor controller 2 includes a control box 21 and a control circuit board 22 , and a motor
  • the body 1 is a plastic body including a rotating shaft 11, a rotor assembly 12, a molded stator 13, a front end cover 14, and a rear end cover 15.
  • the rotor assembly 12 is mounted on the rotating shaft 11, and the plastic sealing stator 13 is nested outside the rotor assembly 12, and the front end cover 14 is mounted on the front end portion of the molded stator 13 and is provided with an outer casing sleeve 3 outside the plastic molded stator 13.
  • the rear end of the casing sleeve 3 extends axially from the rear end portion of the molded stator 13, and the control box 21 is mounted. Mounted on the rear end portion of the casing sleeve 3 and forming a cavity 10 between the control box 21 and the casing sleeve 3, the rear end cover 15 and the control circuit board 22 are mounted inside the cavity 10, A latching opening 31 is defined in the front end portion of the casing sleeve 3, and a bump 1300 is disposed on the outer wall surface of the plastic sealing stator 13, and the bump 1300 is nested inside the bayonet 31.
  • the molded stator 13 includes a stator core 131, an end insulation 132, a coil winding 133, and a molded casing 134.
  • the end insulation 132 is mounted on the end surface of the stator core 131, and the coil winding 133 is wound around the end insulation 132.
  • the molded casing 134 integrally connects the stator core 131, the end insulation 132, the coil winding 133, and the front end cover 14.
  • the outer side surface of the stator core 131 is bare, and the casing sleeve 3 is fitted outside the molded stator 13 and is in contact with the exposed outer surface of the stator core 131.
  • a first stop 1301 is disposed on the outer wall surface of the molded stator 13 , and the protrusion 1300 is disposed on the first stop 1301 , and the casing sleeve 3 is disposed outside the molded stator 13 and the casing sleeve 3 is The front end portion cooperates with the first stop 1301.
  • a second port 210 is provided on the top of the control box 21, and the control box 21 is mounted on the rear end portion of the casing sleeve 3 and the rear end portion of the casing sleeve 3 is engaged with the second port 210.
  • a card slot 211 is disposed on the top of the control box 21, and a card block 32 is disposed on the rear end portion of the casing sleeve 3, and the card block 32 is nested inside the card slot 211.
  • a plurality of mounting brackets 4 are mounted outside the casing sleeve 3, and the mounting brackets 4 may be welded and mounted outside the casing sleeve 3. Also included are a plurality of screws, the rear end cover 15 is mounted on the rear end portion of the molded stator 13 by screws, and the control box 21 and the rear end cover 15 are mounted together by screws.

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

Abstract

一种直流无刷电机，包括电机本体（1）和电机控制器（2），其中电机控制器（2）包括控制盒（21）和控制线路板（22），电机本体（1）是一塑封体，包括转轴（11）、转子组件（12）、塑封定子（13）、前端盖（14）和后端盖（15），转子组件（12）安装在转轴（11）上，塑封定子（13）嵌套在转子组件（12）外面，前端盖（14）安装在塑封定子（13）的前端部上，在塑封定子（13）外面套装有机壳套筒（3），机壳套筒（3）的后端从塑封定子（13）的后端部上沿轴向延伸，控制盒（21）安装在机壳套筒（3）的后端部上并且在控制盒（21）与机壳套筒（3）之间形成空腔（10），后端盖（15）和控制线路板（22）安装在所述的空腔（10）里面，在机壳套筒（3）的前端部上开设有卡口（31），在塑封定子（13）的外壁面上设置有凸块（1300），凸块（1300）嵌套在卡口（31）里面，其结构简单、牢固，可靠性得到保证。

Description

一种直流无刷电机 技术领域：
本实用新型涉及一种直流无刷电机，属于电机技术领域。
背景技术：
如图1和图2所示，现有的直流无刷电机包括转轴A1、转子组件A2、定子组件A3、机壳A4、前端盖A5、后端盖A6、电机控制器A7和若干螺钉A8，转子组件A2安装在转轴A1上，定子组件A3和机壳A4安装在一起并嵌套在转子组件A2外面，通过螺钉A8把前端盖A5和后端盖A6分别安装在机壳A4的两端，并且通过螺钉A8把电机控制器A7安装在后端盖A6上。现有直流无刷电机的安装较为麻烦，首先需要通过螺钉把前端盖和后端盖分别安装在机壳的两端，接着又需要通过螺钉把电机控制器安装在后端盖上，装配效率低，需要的物料成本和人力成本相对较高。
而现有的直流塑封电机包括转轴、转子组件、塑封定子和端盖，转子组件安装在转轴上，塑封定子嵌套在转子组件外面，但是由于塑封定子的外壁面十分光滑，通常采用箍体抱紧塑封定子的方法实现直流塑封电机的安装，但是这种安装方式可靠性较低，结构不牢固，在长期使用的过程中，安装会出现松脱甚至发生脱落的危险。
针对上述电机存在的安装困难、可靠性低的问题，现有厂家推出在塑封定子外面套装机壳，通过机壳把电机安装在负载上的创新技术方案，但是这种电机依然存在机壳容易转动、松脱的问题，可靠性依然达不到客户安全使用的要求。
发明内容：
本实用新型的目的是提供一种直流无刷电机，其结构简单、牢固，可靠性得到保证。
本实用新型的目的是通过下述技术方案予以实现的。
一种直流无刷电机，包括电机本体和电机控制器，其中电机控制器包括控 制盒和控制线路板，电机本体是一塑封体，包括转轴、转子组件、塑封定子、前端盖和后端盖，转子组件安装在转轴上，塑封定子嵌套在转子组件外面，前端盖安装在塑封定子的前端部上，在塑封定子外面套装有机壳套筒，机壳套筒的后端从塑封定子的后端部上沿轴向延伸，控制盒安装在机壳套筒的后端部上并且在控制盒与机壳套筒之间形成空腔，后端盖和控制线路板安装在所述的空腔里面，在机壳套筒的前端部上开设有卡口，在塑封定子的外壁面上设置有凸块，凸块嵌套在卡口里面。
上述塑封定子包括定子铁芯、端部绝缘、线圈绕组和塑封外壳，端部绝缘安装在定子铁芯的端面上，线圈绕组卷绕于端部绝缘上，塑封外壳把定子铁芯、端部绝缘、线圈绕组和前端盖连结成一体。
上述定子铁芯的外侧表面是裸露的，机壳套筒套装在塑封定子外面并且与定子铁芯裸露的外侧表面接触。
上述在塑封定子的外壁面上设置有第一止口，所述的凸块设置在第一止口上，机壳套筒套装在塑封定子外面并且使机壳套筒的前端部与所述的第一止口配合。
上述在控制盒的顶部上设置有第二止口，控制盒安装在机壳套筒的后端部上并且使机壳套筒的后端部与第二止口配合。
上述在控制盒的顶部上设置有卡槽，在机壳套筒的后端部上设置有卡块，卡块嵌套在卡槽里面。
上述在机壳套筒外面安装有若干个安装支架。
上述还包括有若干螺钉，通过螺钉把后端盖安装在塑封定子的后端部上，并且通过螺钉把控制盒与后端盖安装在一起。
本实用新型与现有技术相比，具有如下效果：
1)在塑封定子外面套装有机壳套筒，在机壳套筒的前端部上开设有卡口，在塑封定子的外壁面上设置有凸块，凸块嵌套在卡口里面，其结构简单，机壳的安装牢固，不容易产生转动，可靠性得到保证；
2)机壳套筒套装在塑封定子外面并且与定子铁芯裸露的外侧表面接触，两者之间为过盈配合，机壳套筒与塑封定子之间结合牢固，不易松脱或者产生松动，可靠性得到保证。
3)在控制盒的顶部上设置有卡槽，在机壳套筒的后端部上设置有卡块，卡块嵌套在卡槽里面，通过卡槽与卡块配合，可以进一步提高防止机壳转动的效果；
4)根据需要在机壳套筒外壁焊接各种安装支架，以满足不同的安装需求，并且由于是通过焊接安装在机壳套筒的外壁上，因此无需更改塑封定子的模具，使得方便安装，并且有效控制了生产成本。
附图说明：
图1是现有直流无刷电机的立体图；
图2是现有直流无刷电机的爆炸图；
图3是实施例中直流无刷电机的立体图；
图4是实施例中直流无刷电机的爆炸图；
图5是实施例中直流无刷电机的俯视图；
图6是图5中A-A线剖视图；
图7是实施例中电机本体的立体图；
图8是实施例中电机控制器的立体图。
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。
实施例一：如图3至图8所示，本实施例是一种直流无刷电机，包括电机本体1和电机控制器2，其中电机控制器2包括控制盒21和控制线路板22，电机本体1是一塑封体，包括转轴11、转子组件12、塑封定子13、前端盖14和后端盖15，转子组件12安装在转轴11上，塑封定子13嵌套在转子组件12外面，前端盖14安装在塑封定子13的前端部上，在塑封定子13外面套装有机壳套筒3，机壳套筒3的后端从塑封定子13的后端部上沿轴向延伸，控制盒21安 装在机壳套筒3的后端部上并且在控制盒21与机壳套筒3之间形成空腔10，后端盖15和控制线路板22安装在所述的空腔10里面，在机壳套筒3的前端部上开设有卡口31，在塑封定子13的外壁面上设置有凸块1300，凸块1300嵌套在卡口31里面。所述的塑封定子13包括定子铁芯131、端部绝缘132、线圈绕组133和塑封外壳134，端部绝缘132安装在定子铁芯131的端面上，线圈绕组133卷绕于端部绝缘132上，塑封外壳134把定子铁芯131、端部绝缘132、线圈绕组133和前端盖14连结成一体。定子铁芯131的外侧表面是裸露的，机壳套筒3套装在塑封定子13外面并且与定子铁芯131裸露的外侧表面接触。在塑封定子13的外壁面上设置有第一止口1301，所述的凸块1300设置在第一止口1301上，机壳套筒3套装在塑封定子13外面并且使机壳套筒3的前端部与所述的第一止口1301配合。在控制盒21的顶部上设置有第二止口210，控制盒21安装在机壳套筒3的后端部上并且使机壳套筒3的后端部与第二止口210配合。在控制盒21的顶部上设置有卡槽211，在机壳套筒3的后端部上设置有卡块32，卡块32嵌套在卡槽211里面。在机壳套筒3外面安装有若干个安装支架4，安装支架4可以是焊接安装在机壳套筒3的外面的。还包括有若干螺钉，通过螺钉把后端盖15安装在塑封定子13的后端部上，并且通过螺钉把控制盒21与后端盖15安装在一起。
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明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，都包含在本发明的保护范围之内。

Claims (8)

  1. 一种直流无刷电机，包括电机本体(1)和电机控制器(2)，其中电机控制器(2)包括控制盒(21)和控制线路板(22)，电机本体(1)是一塑封体，包括转轴(11)、转子组件(12)、塑封定子(13)、前端盖(14)和后端盖(15)，转子组件(12)安装在转轴(11)上，塑封定子(13)嵌套在转子组件(12)外面，前端盖(14)安装在塑封定子(13)的前端部上，在塑封定子(13)外面套装有机壳套筒(3)，机壳套筒(3)的后端从塑封定子(13)的后端部上沿轴向延伸，控制盒(21)安装在机壳套筒(3)的后端部上并且在控制盒(21)与机壳套筒(3)之间形成空腔(10)，后端盖(15)和控制线路板(22)安装在所述的空腔(10)里面，其特征在于：在机壳套筒(3)的前端部上开设有卡口(31)，在塑封定子(13)的外壁面上设置有凸块(1300)，凸块(1300)嵌套在卡口(31)里面。
  2. 根据权利要求1所述的一种直流无刷电机，其特征在于：所述的塑封定子(13)包括定子铁芯(131)、端部绝缘(132)、线圈绕组(133)和塑封外壳(134)，端部绝缘(132)安装在定子铁芯(131)的端面上，线圈绕组(133)卷绕于端部绝缘(132)上，塑封外壳(134)把定子铁芯(131)、端部绝缘(132)、线圈绕组(133)和前端盖(14)连结成一体。
  3. 根据权利要求2所述的一种直流无刷电机，其特征在于：定子铁芯(131)的外侧表面是裸露的，机壳套筒(3)套装在塑封定子(13)外面并且与定子铁芯(131)裸露的外侧表面接触。
  4. 根据权利要求1或2或3所述的一种直流无刷电机，其特征在于：在塑封定子(13)的外壁面上设置有第一止口(1301)，所述的凸块(1300)设置在第一止口(1301)上，机壳套筒(3)套装在塑封定子(13)外面并且使机壳套筒(3)的前端部与所述的第一止口(1301)配合。
  5. 根据权利要求4所述的一种直流无刷电机，其特征在于：在控制盒(21)的顶部上设置有第二止口(210)，控制盒(21)安装在机壳套筒(3)的后端部 上并且使机壳套筒(3)的后端部与第二止口(210)配合。
  6. 根据权利要求1或2或3所述的一种直流无刷电机，其特征在于：在控制盒(21)的顶部上设置有卡槽(211)，在机壳套筒(3)的后端部上设置有卡块(32)，卡块(32)嵌套在卡槽(211)里面。
  7. 根据权利要求1或2或3所述的一种直流无刷电机，其特征在于：在机壳套筒(3)外面安装有若干个安装支架(4)。
  8. 根据权利要求1或2或3所述的一种直流无刷电机，其特征在于：还包括有若干螺钉，通过螺钉把后端盖(15)安装在塑封定子(13)的后端部上，并且通过螺钉把控制盒(21)与后端盖(15)安装在一起。
PCT/CN2015/090111 2015-03-31 2015-09-21 一种直流无刷电机 WO2017028356A1 (zh)

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CN110190721A (zh) * 2019-05-05 2019-08-30 深圳南方德尔汽车电子有限公司 一种双定子无刷电机

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