WO2016206199A1 - 一种外转子电机 - Google Patents

一种外转子电机 Download PDF

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Publication number
WO2016206199A1
WO2016206199A1 PCT/CN2015/090117 CN2015090117W WO2016206199A1 WO 2016206199 A1 WO2016206199 A1 WO 2016206199A1 CN 2015090117 W CN2015090117 W CN 2015090117W WO 2016206199 A1 WO2016206199 A1 WO 2016206199A1
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WO
WIPO (PCT)
Prior art keywords
outer rotor
arms
sleeve seat
rotor motor
stator
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Ceased
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PCT/CN2015/090117
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English (en)
French (fr)
Inventor
何锦豪
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Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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 Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Publication of WO2016206199A1 publication Critical patent/WO2016206199A1/zh
Priority to US15/838,300 priority Critical patent/US10680486B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • 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
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
    • 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
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the utility model relates to an outer rotor motor, belonging to the technical field of motors.
  • the existing outer rotor motor comprises a rotating shaft, a stator and an outer rotor, and the outer rotor is sleeved outside the stator, wherein the stator comprises a sleeve seat and a wound stator sleeved outside the sleeve seat, but the stator structure is relatively low in strength and used The process is prone to problems and the reliability is poor.
  • some manufacturers have separately molded the wound stator and then put it on the outside of the sleeve or integrally molded the wound stator and the sleeve.
  • the effect of the improved scheme is still not ideal.
  • the structural strength is still insufficient, and the outer surface of the wound stator after injection molding is smooth, difficult to install, the installation is easy to fall off, the reliability is low, and the installation and use requirements of the customer cannot be satisfied.
  • the purpose of the utility model is to provide an outer rotor motor which has the advantages of simple structure, large structural strength and high reliability.
  • An outer rotor motor comprising a rotating shaft, a plastic-sealed stator and an outer rotor, the outer rotor is sleeved on the outside of the plastic-sealed stator, the plastic-sealed stator comprises a sleeve seat, a stator core, an end insulation, a coil winding and a plastic body, and the end portion
  • the insulation is mounted on the end surface of the stator core, the coil winding is wound on the end insulation, the sleeve seat is disposed in the shaft hole in the middle of the stator core, and the sleeve body, the stator core and the end portion are formed by the plastic sealing body
  • the insulation and the coil winding are integrally connected, and a bearing chamber is respectively arranged at two ends of the sleeve seat, and a bearing is installed in the bearing chamber, the rotating shaft is located inside the sleeve seat and the two ends are respectively supported on the bearing, and one end of the rotating shaft is s
  • a positioning hole is defined in the outer end of the arm, and a bolt is nested in the positioning hole.
  • the head of the bolt is fixed in the positioning hole by the molding body, and the screw portion of the bolt is exposed from the top surface of the molding body.
  • the above-mentioned two arms are provided with arcuate flanges on the outer wall surface of the sleeve seat, and the arcuate flanges connect the adjacent two arms together.
  • the above-mentioned ribs are provided on the top surface of each arm.
  • the above-mentioned ribs are also provided on the bottom surface of each arm.
  • the number of the above-mentioned arms is four, and the four arms are evenly arranged in the circumferential direction.
  • One end of the rotating shaft protrudes from the middle of the sleeve seat and is connected with the outer rotor, and then extends outward from the middle of the outer rotor to form a shaft extending end for connection with the load.
  • a positioning hole is formed in the outer end of the arm, and a bolt is nested in the positioning hole, and the head of the bolt is fixed in the positioning hole by the molding body, and the screw portion of the bolt is exposed from the top surface of the molding body.
  • the ribs are arranged on the top surface and/or the bottom surface of each arm, and the structure is simple, which effectively increases the structural strength and improves the reliability.
  • Figure 1 is a perspective view of an outer rotor motor in the embodiment
  • Figure 2 is an exploded view of the outer rotor motor in the embodiment
  • Figure 3 is a schematic structural view of an outer rotor motor in the embodiment
  • Figure 4 is a perspective view of the molded stator in the embodiment.
  • Embodiment 1 As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the embodiment is an outer rotor motor comprising a rotating shaft 1 , a molded stator 2 and an outer rotor 3 , and the outer rotor 3 is sleeved on the plastic stator 2 .
  • the molded stator 2 includes a sleeve seat 21, a stator core 22, an end insulation 23, a coil winding 24, and a molding body 25.
  • the end insulation 23 is mounted on the end surface of the stator core 22, and the coil winding 24 is wound.
  • the sleeve seat 21 is disposed in a shaft hole in the middle of the stator core 22, and the molding body 25 connects the sleeve seat 21, the stator core 22, the end insulation 23 and the coil winding 24
  • a bearing chamber 210 is respectively disposed at two ends of the sleeve seat 21, and a bearing 4 is mounted in the bearing chamber 210.
  • the rotating shaft 1 is located inside the sleeve seat 21 and the two ends are respectively supported on the bearing 4, and the rotating shaft 1 is respectively One end protrudes from the middle of the sleeve seat 21 and is connected with the outer rotor 3, and then extends outward from the middle of the outer rotor 3 to form a shaft extending end 11 for connection with a load, and a plurality of branches are protruded outward on the top of the sleeve seat 21.
  • the arm 211 is provided with a positioning hole 2110 at an outer end of the arm 211, and is nested in the positioning hole 2110.
  • the head of the bolt 5 is fitted in the positioning holes 2110 25 inside, the bolt screw portion 5 exposed from the top surface 211 of the plastic body 25 of plastic material.
  • arcuate flanges 212 are provided, and the arcuate flanges 212 connect the adjacent two arms 211 together.
  • a rib 2111 is provided on the top surface of each of the arms 211.
  • a rib 2111 is also provided on the bottom surface of each arm 211.
  • the number of the arms 211 is four, and the four arms 211 are evenly arranged in the circumferential direction.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

一种外转子电机，包括转轴（1）、塑封定子（2）和外转子（3），外转子（3）套设于塑封定子（2）外面，塑封定子（2）包括套筒座（21）、定子铁芯（22）、端部绝缘（23）、线圈绕组（24）和塑封体（25），在套筒座（21）的顶部上往外侧伸出若干个支臂（211），在支臂（211）的外侧端部上安装有螺栓（5），塑封体（25）包裹在支臂（211）的外面并且使螺栓（5）的螺杆部从塑封体（25）的顶面上露出，该结构简单，结构强度大，可靠性高。

Description

一种外转子电机 技术领域：
本实用新型涉及一种外转子电机，属于电机技术领域。
背景技术：
现有的外转子电机包括转轴、定子和外转子，外转子套设于定子外面，其中定子包括套筒座和套装在套筒座外面的绕线定子，但是该定子结构强度相对较低，使用过程中容易出现问题、可靠性较差。为解决该问题，现有部分厂家把绕线定子单独注塑后再套装在套筒座的外面或者把绕线定子与套筒座两者整体注塑，但是该改进方案的效果依旧不理想，定子的结构强度依然不足，并且注塑后的绕线定子外表面光滑，难于安装，安装容易脱落、可靠性低，不能满足客户的安装、使用要求。
发明内容：
本实用新型的目的是提供一种外转子电机，该结构简单，结构强度大，可靠性高。
本实用新型的目的是通过下述技术方案予以实现的。
一种外转子电机，包括转轴、塑封定子和外转子，外转子套设于塑封定子外面，所述的塑封定子包括套筒座、定子铁芯、端部绝缘、线圈绕组和塑封体，端部绝缘安装在定子铁芯的端面上，线圈绕组绕制于端部绝缘上，套筒座设置于定子铁芯中间的轴孔内，塑封体把所述的套筒座、定子铁芯、端部绝缘和线圈绕组连结成一体，在套筒座两端分别开设有轴承室，在轴承室里面安装有轴承，转轴位于套筒座里面并且两端分别支承在所述的轴承上，转轴一端从套筒座中间伸出与外转子连接在一起，在套筒座的顶部上往外侧伸出若干个支臂，在支臂的外侧端部上安装有螺栓，塑封体包裹在所述的支臂的外面并且使螺栓的螺杆部从塑封体的顶面上露出。
上述在支臂的外侧端部上开设有定位孔，在定位孔里面嵌套安装有螺栓，螺栓的头部被塑封体固定在定位孔里面，螺栓的螺杆部从塑封体的顶面上露出。
上述在相邻的2个支臂之间、套筒座的外壁面上设置有弧形凸边，弧形凸边把相邻的2个支臂连接在一起。
上述在每个支臂的顶面上设置有加强筋。
上述在每个支臂的底面上也设置有加强筋。
上述支臂的数量是4个，4个支臂沿周向均匀排布。
上述转轴一端从套筒座中间伸出与外转子连接在一起后从外转子中间往外延伸形成轴伸端用于与负载连接。
本实用新型与现有技术相比，具有如下效果：
1)在套筒座的顶部上往外侧伸出若干个支臂，在支臂的外侧端部上安装有螺栓，塑封体包裹在所述的支臂的外面并且使螺栓的螺杆部从塑封体的顶面上露出，结构简单，有效增加套筒座与塑封体之间的结合力，增加其结构强度，同时通过螺栓可以方便安装外转子电机，使用方便、可靠性高；
2)支臂的外侧端部上开设有定位孔，在定位孔里面嵌套安装有螺栓，螺栓的头部被塑封体固定在定位孔里面，螺栓的螺杆部从塑封体的顶面上露出，结构简单，安装方便、牢靠；
3)在相邻的2个支臂之间、套筒座的外壁面上设置有弧形凸边，弧形凸边把相邻的2个支臂连接在一起，结构简单，有效增加结构强度，提高其可靠性。
4)在每个支臂的顶面和/或底面上设置有加强筋，结构简单，有效增加结构强度，提高其可靠性。
附图说明：
图1是实施例中外转子电机的立体图；
图2是实施例中外转子电机的分解图；
图3是实施例中外转子电机的结构示意图；
图4是实施例中塑封定子的立体图。
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1、图2、图3和图4所示，本实施例是一种外转子电机，包括转轴1、塑封定子2和外转子3，外转子3套设于塑封定子2外面，所述的塑封定子2包括套筒座21、定子铁芯22、端部绝缘23、线圈绕组24和塑封体25，端部绝缘23安装在定子铁芯22的端面上，线圈绕组24绕制于端部绝缘23上，套筒座21设置于定子铁芯22中间的轴孔内，塑封体25把所述的套筒座21、定子铁芯22、端部绝缘23和线圈绕组24连结成一体，在套筒座21两端分别开设有轴承室210，在轴承室210里面安装有轴承4，转轴1位于套筒座21里面并且两端分别支承在所述的轴承4上，转轴1一端从套筒座21中间伸出与外转子3连接在一起后从外转子3中间往外延伸形成轴伸端11用于与负载连接，在套筒座21的顶部上往外侧伸出若干个支臂211，在支臂211的外侧端部上开设有定位孔2110，在定位孔2110里面嵌套安装有螺栓5，塑封体25包裹在所述的支臂211的外面，螺栓5的头部被塑封体25固定在定位孔2110里面，螺栓5的螺杆部从塑封体25的顶面上露出。在相邻的2个支臂211之间、套筒座21的外壁面上设置有弧形凸边212，弧形凸边212把相邻的2个支臂211连接在一起。在每个支臂211的顶面上设置有加强筋2111。在每个支臂211的底面上也设置有加强筋2111。支臂211的数量是4个，4个支臂211沿周向均匀排布。
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 (7)

  1. 一种外转子电机，包括转轴(1)、塑封定子(2)和外转子(3)，外转子(3)套设于塑封定子(2)外面，所述的塑封定子(2)包括套筒座(21)、定子铁芯(22)、端部绝缘(23)、线圈绕组(24)和塑封体(25)，端部绝缘(23)安装在定子铁芯(22)的端面上，线圈绕组(24)绕制于端部绝缘(23)上，套筒座(21)设置于定子铁芯(22)中间的轴孔内，塑封体(25)把所述的套筒座(21)、定子铁芯(22)、端部绝缘(23)和线圈绕组(24)连结成一体，在套筒座(21)两端分别开设有轴承室(210)，在轴承室(210)里面安装有轴承(4)，转轴(1)位于套筒座(21)里面并且两端分别支承在所述的轴承(4)上，转轴(1)一端从套筒座(21)中间伸出与外转子(3)连接在一起，其特征在于：在套筒座(21)的顶部上往外侧伸出若干个支臂(211)，在支臂(211)的外侧端部上安装有螺栓(5)，塑封体(25)包裹在所述的支臂(211)的外面并且使螺栓(5)的螺杆部从塑封体(25)的顶面上露出。
  2. 根据权利要求1所述的一种外转子电机，其特征在于：在支臂(211)的外侧端部上开设有定位孔(2110)，在定位孔(2110)里面嵌套安装有螺栓(5)，螺栓(5)的头部被塑封体(25)固定在定位孔(2110)里面，螺栓(5)的螺杆部从塑封体(25)的顶面上露出。
  3. 根据权利要求2所述的一种外转子电机，其特征在于：在相邻的2个支臂(211)之间、套筒座(21)的外壁面上设置有弧形凸边(212)，弧形凸边(212)把相邻的2个支臂(211)连接在一起。
  4. 根据权利要求1或2或3所述的一种外转子电机，其特征在于：在每个支臂(211)的顶面上设置有加强筋(2111)。
  5. 根据权利要求4所述的一种外转子电机，其特征在于：在每个支臂(211)的底面上也设置有加强筋(2111)。
  6. 根据权利要求1或2或3所述的一种外转子电机，其特征在于：支臂(211)的数量是4个，4个支臂(211)沿周向均匀排布。
  7. 根据权利要求1或2或3所述的一种外转子电机，其特征在于：转轴(1)一端从套筒座(21)中间伸出与外转子(3)连接在一起后从外转子(3)中间往外延伸形成轴伸端(11)用于与负载连接。
PCT/CN2015/090117 2015-06-23 2015-09-21 一种外转子电机 Ceased WO2016206199A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/838,300 US10680486B2 (en) 2015-06-23 2017-12-11 External rotor motor

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CN201520435728.7 2015-06-23
CN201520435728.7U CN204732978U (zh) 2015-06-23 2015-06-23 一种外转子电机

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PCT/CN2016/075893 Continuation-In-Part WO2017005002A1 (zh) 2015-06-23 2016-03-08 一种用于安装定子组件的套筒座及其应用的外转子电机

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PCT/CN2016/075893 Continuation-In-Part WO2017005002A1 (zh) 2015-06-23 2016-03-08 一种用于安装定子组件的套筒座及其应用的外转子电机
US15/838,300 Continuation-In-Part US10680486B2 (en) 2015-06-23 2017-12-11 External rotor motor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107579617A (zh) * 2017-08-31 2018-01-12 新乡市巨能合成材料有限公司 一种真空泵电机挡板
CN114047464A (zh) * 2021-11-24 2022-02-15 江苏莫安迪科技股份有限公司 一种外转子永磁体磁极检测装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107171465B (zh) * 2016-03-07 2020-09-08 德昌电机(深圳)有限公司 定子及具有该定子的电机
CN108768051A (zh) * 2018-07-04 2018-11-06 合肥市通得力电气制造有限公司 一种用于外转子电机的轴承支架结构

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Publication number Priority date Publication date Assignee Title
CN1115918A (zh) * 1994-03-17 1996-01-31 富士电机株式会社 旋转式电动机
JP2001204156A (ja) * 2000-01-19 2001-07-27 Nidec Shibaura Corp 回路内蔵アウターロータ形モータ
CN101615817A (zh) * 2008-06-26 2009-12-30 中山大洋电机股份有限公司 一种外转子电机
CN203554165U (zh) * 2013-09-18 2014-04-16 中山大洋电机制造有限公司 一种塑封电机的安装结构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1115918A (zh) * 1994-03-17 1996-01-31 富士电机株式会社 旋转式电动机
JP2001204156A (ja) * 2000-01-19 2001-07-27 Nidec Shibaura Corp 回路内蔵アウターロータ形モータ
CN101615817A (zh) * 2008-06-26 2009-12-30 中山大洋电机股份有限公司 一种外转子电机
CN203554165U (zh) * 2013-09-18 2014-04-16 中山大洋电机制造有限公司 一种塑封电机的安装结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107579617A (zh) * 2017-08-31 2018-01-12 新乡市巨能合成材料有限公司 一种真空泵电机挡板
CN114047464A (zh) * 2021-11-24 2022-02-15 江苏莫安迪科技股份有限公司 一种外转子永磁体磁极检测装置

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