WO2015180329A1 - 一种电机端盖及其应用的塑封电机 - Google Patents

一种电机端盖及其应用的塑封电机 Download PDF

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Publication number
WO2015180329A1
WO2015180329A1 PCT/CN2014/087346 CN2014087346W WO2015180329A1 WO 2015180329 A1 WO2015180329 A1 WO 2015180329A1 CN 2014087346 W CN2014087346 W CN 2014087346W WO 2015180329 A1 WO2015180329 A1 WO 2015180329A1
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Prior art keywords
end cover
annular flange
motor
bearing chamber
plastic
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PCT/CN2014/087346
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English (en)
French (fr)
Inventor
潘明攀
丁小勇
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Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Publication of WO2015180329A1 publication Critical patent/WO2015180329A1/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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields

Definitions

  • the utility model relates to a motor end cover and a plastic sealing motor thereof.
  • the existing motor end cover includes a bearing chamber in the middle of the motor end cover, and the bearing chamber is used for mounting the bearing, but the motor end cover lacks a design of anti-axis current, and the shaft is easily formed between the motor end cover, the bearing and the rotating shaft. Current and shaft current can seriously affect the service life of bearings and motors. There are safety hazards in use and low reliability.
  • the utility model aims to provide a motor end cover and a plastic sealing motor thereof, which is simple in structure, effectively prevents the generation of the shaft current, prolongs the service life of the bearing and the motor, and the end cover and the insulating layer are integrated into one body, which is firm and reliable.
  • the plastic sealing motor has the advantages of simple structure, high reliability and long service life.
  • a motor end cover is provided with a bearing chamber in the middle of the end cover, wherein: a plurality of through holes are formed in the outer circumference of the bearing and the end cover, and an insulating sleeve is nested in the inner wall of the bearing chamber, and the insulating sleeve is An annular flange is extended outwardly from the opening of the end portion, and the annular flange is closely attached to the inner side surface of the end cover.
  • a plurality of protrusions are protruded on the annular flange, and the protrusion is nested inside the through hole.
  • the end portion of the above-mentioned protruding post protrudes outwardly from the annular flange, and the bottom surface of the annular flange is pressed against the outer side surface of the end cover, and the end cover is made of a metal material.
  • the insulating sleeve and the annular flange described above are integrally injection molded on the end cap.
  • the number of through holes described above is five, and the through holes are evenly arranged circumferentially on the periphery of the bearing chamber.
  • a plastic-sealed motor includes a rotating shaft, a rotor assembly, a plastic-sealed stator, a front end cover and a rear end cover.
  • the rotor assembly is mounted on the rotating shaft, and the plastic-sealed stator is nested outside the rotor assembly.
  • the plastic-sealed stator includes a stator core, an end insulation, and a coil winding.
  • a plastic sealed casing the end insulation is mounted on the end face of the stator core, the coil winding is wound on the end insulation, and the plastic casing is wrapped around the stator core, the end insulation, the coil winding and the rear end cover, and the front end cover is mounted on
  • the end of the plastic case is provided with a bearing between the front end cover and the rear end cover a bearing is mounted in the bearing chamber, and the rotating shaft is supported on the bearing of the two end covers, and is characterized in that: a plurality of through holes are formed in the outer circumference of the bearing and the front end cover, and an insulating sleeve is nested in the inner wall of the bearing chamber.
  • the annular flange Extending the annular flange at the opening of the end of the insulating sleeve, the annular flange is closely attached to the inner side surface of the front end cover, and a plurality of protruding columns are protruded on the annular flange, and the protruding column is nested inside the through hole.
  • the end portion of the above-mentioned protruding post protrudes outwardly from the annular flange, and the bottom surface of the annular flange is pressed against the outer side surface of the front end cover, and the front end cover is made of a metal material.
  • the insulating sleeve and the annular flange described above are integrally injection molded on the front end cover.
  • the number of through holes described above is five, and the through holes are evenly arranged circumferentially on the periphery of the bearing chamber.
  • the utility model has the following effects: 1) an insulating sleeve is nested in the inner wall of the bearing chamber, and a circular flange is extended outwardly at the opening of the end portion of the insulating sleeve, and the annular flange is closely attached. On the inner side surface of the end cover, a plurality of protruding columns are protruded on the annular flange, and the protruding column is nested inside the through hole.
  • the structure is simple, effectively preventing the generation of the shaft current, prolonging the service life of the bearing and the motor, and the end cover It is integrated with the insulating layer and is firm and reliable.
  • the end of the protruding post protrudes outwardly from the annular flange, and the bottom surface of the annular flange is pressed against the outer side surface of the end cover.
  • the structure is simple, the installation is firm and reliable;
  • the insulating sleeve The cylinder and the annular flange are integrally injection-molded on the end cover, the production process is simple, the cost is low, and the mass production is convenient;
  • the plastic-sealed motor has a simple structure, high reliability and long service life.
  • Figure 1 is a perspective view of the end cap of the present invention
  • Figure 2 is an exploded view of the end cap of the present invention
  • Figure 3 is a plan view of the end cap of the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a perspective view of the plastic-sealed motor of the present invention.
  • Figure 6 is an exploded view of the plastic motor of the present invention.
  • Figure 7 is a plan view of the plastic-sealed motor of the present invention.
  • Figure 8 is a cross-sectional view taken along line B-B of Figure 7;
  • Embodiment 1 As shown in FIG. 1 to FIG. 4 , the utility model is a motor end cover.
  • a bearing chamber 11 is arranged in the middle of the end cover 1 , and a plurality of through holes 12 are formed on the outer periphery of the bearing chamber 11 and the end cover 1 .
  • An insulating sleeve 2 is nested in the inner wall of the bearing chamber 11, and an annular flange 21 is extended outwardly at the opening of the end of the insulating sleeve 2, and the annular flange 21 is in close contact with the inner side surface of the end cover 1,
  • a plurality of protrusions 22 are protruded from the annular flange 21, and the protrusions 22 are nested inside the through holes 12.
  • the end of the boss 22 projects outwardly from the annular flange 23, and the bottom surface of the annular flange 23 is pressed against the outer side surface of the end cover 1, and the end cover 1 is made of a metal material.
  • the insulating sleeve 2 and the annular flange 21 are integrally injection molded on the end cap 1.
  • the number of the through holes 12 is five, and the through holes 12 are uniformly arranged circumferentially on the outer periphery of the bearing chamber 11.
  • the principle of the utility model is: an insulating sleeve 2 is nested on the inner wall of the bearing chamber 11, and an annular flange 21 is extended outwardly at the opening of the end of the insulating sleeve 2, and the annular flange 21 is closely attached to the end cover 1
  • a plurality of protrusions 22 are protruded on the annular flange 21, and the protrusions 22 are nested inside the through hole 12.
  • the structure is simple, effectively preventing the generation of the shaft current, prolonging the service life of the bearing and the motor, and the end.
  • the cover and the insulation layer are integrated into one body, which is firm and reliable.
  • Embodiment 2 As shown in FIG. 2, FIG. 5, FIG. 6, FIG. 7 and FIG. 8, the utility model is a plastic sealing motor, comprising a rotating shaft 3, a rotor assembly 4, a plastic sealing stator 5, a front end cover 6 and a rear end cover 7.
  • the rotor assembly 4 is mounted on the rotating shaft 3, and the plastic sealing stator 5 is nested outside the rotor assembly 4.
  • the plastic sealing stator 5 includes a stator core 51, an end insulation 52, a coil winding 53 and a plastic casing 54, and the end insulation 52 is mounted on the stator.
  • the coil winding 53 is wound around the end insulation 52, and the plastic case 54 is wrapped around the stator core 51, the end insulation 52, the coil winding 53 and the rear end cover 7, and the front end cover 6 is mounted on the plastic seal
  • a bearing chamber 11 is disposed between the front end cover 6 and the rear end cover 7, and a bearing 8 is mounted inside the bearing chamber 11, and the rotating shaft 3 is supported on the bearing 8 of the both end covers, at the periphery of the bearing chamber 11.
  • a plurality of through holes 12 are formed in the front end cover 6, and an insulating sleeve 2 is nested on the inner wall of the bearing chamber 11, and an annular flange 21 is extended outwardly at the opening of the end portion of the insulating sleeve 2, and the annular flange 21 is tightly closed.
  • the end of the boss 22 projects outwardly from the annular flange 23, and the bottom surface of the annular flange 23 is pressed against the outer side surface of the front end cover 6, and the front end cover 6 is made of a metal material.
  • the insulating sleeve 2 and the annular flange 21 are integrally injection molded on the front end cover 6 Up.
  • the number of the through holes 12 is five, and the through holes 12 are uniformly arranged circumferentially on the outer periphery of the bearing chamber 11.
  • the principle of the utility model is that an insulating sleeve 2 is nested in the inner wall of the bearing chamber 11, and an annular flange 21 is extended outwardly at the opening of the end of the insulating sleeve 2, and the annular flange 21 is closely attached to the front end cover 6.
  • a plurality of protrusions 22 are protruded on the annular flange 21, and the protrusions 22 are nested inside the through holes 12.
  • the plastic sealing motor has a simple structure, high reliability and long service life.

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

Abstract

一种电机端盖及其应用的塑封电机，在端盖（1）中间设置有轴承室（11），在轴承室外围、端盖上开始有若干通孔（12），在轴承室的内壁嵌套安装有绝缘套筒（2），在绝缘套筒端部的开口处往外延伸出环形翻边（21），环形翻边紧贴在端盖的内侧面上，在环形翻边上伸出若干凸柱（22），凸柱嵌套在通孔（12）里面，应用该电机端盖的塑封电机还包括转轴（3）、转子组件（4）、塑封定子（5）、前端盖（6）和后端盖（7），该电机端盖及其应用的塑封电机结构简单，有效防止轴电流的产生，延长轴承和电机的使用寿命，且端盖和绝缘层结合成一体，牢固可靠。

Description

一种电机端盖及其应用的塑封电机 技术领域：
本实用新型涉及一种电机端盖及其应用的塑封电机。
背景技术：
现有的电机端盖包括在电机端盖中间开设有轴承室，轴承室用于安装轴承，但是这种电机端盖缺少防轴电流的设计，在电机端盖、轴承和转轴之间容易形成轴电流，轴电流会严重影响轴承和电机的使用寿命，在使用过程中存在安全隐患，可靠性较低。
发明内容：
本实用新型的目的是提供一种电机端盖及其应用的塑封电机，该结构简单，有效防止轴电流的产生，延长轴承和电机的使用寿命，而且端盖和绝缘层结合成一体，牢固可靠，该塑封电机结构简单，可靠性高，使用寿命长。
本实用新型的目的是通过下述技术方案予以实现的。
一种电机端盖，在端盖中间设置有轴承室，其特征在于：在轴承室外围、端盖上开始有若干通孔，在轴承室的内壁嵌套安装有绝缘套筒，在绝缘套筒端部的开口处往外延伸出环形翻边，环形翻边紧贴在端盖的内侧面上，在环形翻边上伸出若干凸柱，凸柱嵌套在通孔里面。
上述所述的凸柱的端部往外伸出环形凸边，环形凸边的底面压紧在端盖的外侧面上，端盖是采用金属材料制成的。
上述所述的绝缘套筒和环形翻边是一体注塑安装在端盖上的。
上述所述的通孔的数量是5个，通孔周向均匀排布在轴承室的外围。
一种塑封电机，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，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，线圈绕组卷绕在端部绝缘上，塑封外壳包裹在定子铁芯、端部绝缘、线圈绕组和后端盖外面，前端盖安装在塑封外壳的端部，在前端盖和后端盖中间都设置有轴承 室，在轴承室里面安装有轴承，转轴支承在两端盖的轴承上，其特征在于：在轴承室外围、前端盖上开始有若干通孔，在轴承室的内壁嵌套安装有绝缘套筒，在绝缘套筒端部的开口处往外延伸出环形翻边，环形翻边紧贴在前端盖的内侧面上，在环形翻边上伸出若干凸柱，凸柱嵌套在通孔里面。
上述所述的凸柱的端部往外伸出环形凸边，环形凸边的底面压紧在前端盖的外侧面上，前端盖是采用金属材料制成的。
上述所述的绝缘套筒和环形翻边是一体注塑安装在前端盖上的。
上述所述的通孔的数量是5个，通孔周向均匀排布在轴承室的外围。
本实用新型与现有技术相比，具有如下效果：1)在轴承室的内壁嵌套安装有绝缘套筒，在绝缘套筒端部的开口处往外延伸出环形翻边，环形翻边紧贴在端盖的内侧面上，在环形翻边上伸出若干凸柱，凸柱嵌套在通孔里面，该结构简单，有效防止轴电流的产生，延长轴承和电机的使用寿命，而且端盖和绝缘层结合成一体，牢固可靠；2)凸柱的端部往外伸出环形凸边，环形凸边的底面压紧在端盖的外侧面上，结构简单，安装牢固可靠；3)绝缘套筒和环形翻边是一体注塑安装在端盖上的，生产工艺简单，成本低，便于批量生产；4)该塑封电机结构简单，可靠性高，使用寿命长。
附图说明：
图1是本实用新型端盖的立体图；
图2是本实用新型端盖的分解图；
图3是本实用新型端盖的俯视图；
图4是图3中A-A剖视图；
图5是本实用新型塑封电机的立体图；
图6是本实用新型塑封电机的分解图；
图7是本实用新型塑封电机的俯视图；
图8是图7中B-B剖视图。
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至图4所示，本实用新型是一种电机端盖，在端盖1中间设置有轴承室11，在轴承室11外围、端盖1上开始有若干通孔12，在轴承室11的内壁嵌套安装有绝缘套筒2，在绝缘套筒2端部的开口处往外延伸出环形翻边21，环形翻边21紧贴在端盖1的内侧面上，在环形翻边21上伸出若干凸柱22，凸柱22嵌套在通孔12里面。凸柱22的端部往外伸出环形凸边23，环形凸边23的底面压紧在端盖1的外侧面上，端盖1是采用金属材料制成的。绝缘套筒2和环形翻边21是一体注塑安装在端盖1上的。通孔12的数量是5个，通孔12周向均匀排布在轴承室11的外围。
本实用新型的原理是：在轴承室11的内壁嵌套安装有绝缘套筒2，在绝缘套筒2端部的开口处往外延伸出环形翻边21，环形翻边21紧贴在端盖1的内侧面上，在环形翻边21上伸出若干凸柱22，凸柱22嵌套在通孔12里面，该结构简单，有效防止轴电流的产生，延长轴承和电机的使用寿命，而且端盖和绝缘层结合成一体，牢固可靠。
实施例二：如图2、图5、图6、图7和图8所示，本实用是一种塑封电机，包括转轴3、转子组件4、塑封定子5、前端盖6和后端盖7，转子组件4安装在转轴3上，塑封定子5嵌套在转子组件4外面，塑封定子5包括定子铁芯51、端部绝缘52、线圈绕组53和塑封外壳54，端部绝缘52安装在定子铁芯51的端面上，线圈绕组53卷绕在端部绝缘52上，塑封外壳54包裹在定子铁芯51、端部绝缘52、线圈绕组53和后端盖7外面，前端盖6安装在塑封外壳54的端部，在前端盖6和后端盖7中间都设置有轴承室11，在轴承室11里面安装有轴承8，转轴3支承在两端盖的轴承8上，在轴承室11外围、前端盖6上开始有若干通孔12，在轴承室11的内壁嵌套安装有绝缘套筒2，在绝缘套筒2端部的开口处往外延伸出环形翻边21，环形翻边21紧贴在前端盖6的内侧面上，在环形翻边21上伸出若干凸柱22，凸柱22嵌套在通孔12里面。凸柱22的端部往外伸出环形凸边23，环形凸边23的底面压紧在前端盖6的外侧面上，前端盖6是采用金属材料制成的。绝缘套筒2和环形翻边21是一体注塑安装在前端盖6 上的。通孔12的数量是5个，通孔12周向均匀排布在轴承室11的外围。
本实用新型的原理是：在轴承室11的内壁嵌套安装有绝缘套筒2，在绝缘套筒2端部的开口处往外延伸出环形翻边21，环形翻边21紧贴在前端盖6的内侧面上，在环形翻边21上伸出若干凸柱22，凸柱22嵌套在通孔12里面，该塑封电机结构简单，可靠性高，使用寿命长。
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. 一种电机端盖，在端盖(1)中间设置有轴承室(11)，其特征在于：在轴承室(11)外围、端盖(1)上开始有若干通孔(12)，在轴承室(11)的内壁嵌套安装有绝缘套筒(2)，在绝缘套筒(2)端部的开口处往外延伸出环形翻边(21)，环形翻边(21)紧贴在端盖(1)的内侧面上，在环形翻边(21)上伸出若干凸柱(22)，凸柱(22)嵌套在通孔(12)里面。
  2. 根据权利要求1所述的一种电机端盖，其特征在于：凸柱(22)的端部往外伸出环形凸边(23)，环形凸边(23)的底面压紧在端盖(1)的外侧面上，端盖(1)是采用金属材料制成的。
  3. 根据权利要求1或2所述的一种电机端盖，其特征在于：绝缘套筒(2)和环形翻边(21)是一体注塑安装在端盖(1)上的。
  4. 根据权利要求3所述的一种电机端盖，其特征在于：通孔(12)的数量是5个，通孔(12)周向均匀排布在轴承室(11)的外围。
  5. 一种塑封电机，包括转轴(3)、转子组件(4)、塑封定子(5)、前端盖(6)和后端盖(7)，转子组件(4)安装在转轴(3)上，塑封定子(5)嵌套在转子组件(4)外面，塑封定子(5)包括定子铁芯(51)、端部绝缘(52)、线圈绕组(53)和塑封外壳(54)，端部绝缘(52)安装在定子铁芯(51)的端面上，线圈绕组(53)卷绕在端部绝缘(52)上，塑封外壳(54)包裹在定子铁芯(51)、端部绝缘(52)、线圈绕组(53)和后端盖(7)外面，前端盖(6)安装在塑封外壳(54)的端部，在前端盖(6)和后端盖(7)中间都设置有轴承室(11)，在轴承室(11)里面安装有轴承(8)，转轴(3)支承在两端盖的轴承(8)上，其特征在于：在轴承室(11)外围、前端盖(6)上开始有若干通孔(12)，在轴承室(11)的内壁嵌套安装有绝缘套筒(2)，在绝缘套筒(2)端部的开口处往外延伸出环形翻边(21)，环形翻边(21)紧贴在前端盖(6)的内侧面上，在环形翻边(21)上伸出若干凸柱(22)，凸柱(22)嵌套在通孔(12)里面。
  6. 根据权利要求5所述的一种塑封电机，其特征在于：凸柱(22)的端部往外伸出环形凸边(23)，环形凸边(23)的底面压紧在前端盖(6)的外侧面上，前端盖(6)是采用金属材料制成的。
  7. 根据权利要求5或6所述的一种塑封电机，其特征在于：绝缘套筒(2)和环形翻边(21)是一体注塑安装在前端盖(6)上的。
  8. 根据权利要求7所述的一种塑封电机，其特征在于：通孔(12)的数量是5个，通孔(12)周向均匀排布在轴承室(11)的外围。
PCT/CN2014/087346 2014-05-28 2014-09-24 一种电机端盖及其应用的塑封电机 Ceased WO2015180329A1 (zh)

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