WO2015143853A1 - 一种直流无刷外转子电机及其应用的鼓风机 - Google Patents

一种直流无刷外转子电机及其应用的鼓风机 Download PDF

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Publication number
WO2015143853A1
WO2015143853A1 PCT/CN2014/087339 CN2014087339W WO2015143853A1 WO 2015143853 A1 WO2015143853 A1 WO 2015143853A1 CN 2014087339 W CN2014087339 W CN 2014087339W WO 2015143853 A1 WO2015143853 A1 WO 2015143853A1
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Prior art keywords
end cover
outer casing
rotor motor
outer rotor
stator assembly
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PCT/CN2014/087339
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English (en)
French (fr)
Inventor
唐松发
曾崇生
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中山大洋电机制造有限公司
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Publication of WO2015143853A1 publication Critical patent/WO2015143853A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

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  • the utility model relates to a direct current brushless outer rotor motor and a blower thereof.
  • the existing DC brushless outer rotor motor comprises a rotating shaft, a stator assembly, a casing, a plurality of permanent magnets, a front end cover and a rear end cover.
  • the stator assembly is fixed on the rotating shaft
  • the outer casing is set outside the stator assembly
  • a plurality of permanent magnets are located outside the stator assembly.
  • mounted on the inner side wall surface of the outer casing the front end cover and the rear end cover are respectively installed at two ends of the outer casing, and the rotating shaft is supported on the bearings of the front end cover and the rear end cover, but the outer rotor motor has high cost, troublesome installation, outer casing and end
  • the coaxiality of the cover is difficult to guarantee and it is easy to affect the normal operation of the motor.
  • the purpose of the utility model is to provide a DC brushless outer rotor motor and a blower thereof, the outer rotor motor has a simple structure and convenient installation, the coaxiality of the motor casing and the end cover is ensured, and the cost is low and the processing is easy.
  • the blower has the advantages of simple structure, convenient installation, low cost and reliable operation.
  • a DC brushless outer rotor motor comprises a rotating shaft, a stator assembly, a casing, a plurality of permanent magnets, a front end cover and a rear end cover, the stator assembly is fixed on the rotating shaft, the outer casing is set outside the stator assembly, and the plurality of permanent magnets are located outside the stator assembly And mounted on the inner side wall surface of the outer casing, the front end cover and the rear end cover are respectively mounted on the two ends of the outer casing, and the rotating shaft is supported on the bearings of the front end cover and the rear end cover, wherein the front end cover and the outer casing are integrally die-cast.
  • the end cap end portion described above protrudes downwardly from the annular projection, and the annular projection projects into the outer casing and abuts against the inner wall surface of the outer casing.
  • the outer side of the annular protrusion protrudes outwardly from a plurality of blocks, and the inner side wall surface of the outer casing is die-cast and encloses the block.
  • the end face of the annular protrusion described above protrudes downwardly from a plurality of positioning blocks, and a permanent magnet is disposed between each adjacent two positioning blocks.
  • the mounting screws described above pass through the front end cover and are screwed into the positioning block to mount the front end cover on the end of the outer casing.
  • a plurality of glue tanks are provided on the top surfaces of the front end cover and the rear end cover described above.
  • the outer casing described above is provided with a mounting flange.
  • the plurality of permanent magnets described above are adhered to the inner wall surface of the outer casing by glue.
  • a shaft hole is opened in the middle of the rotating shaft, and a lead wire of the stator assembly protrudes outward from the middle of the shaft hole.
  • the utility model relates to a blower, which comprises a fan volute, a DC brushless outer rotor motor, a centrifugal wind wheel and a plurality of bracket assemblies, a cavity is opened in the middle of the fan volute, an air inlet is opened on both ends of the fan volute, and a side is opened on the side of the fan volute
  • the air outlet, the air inlet and the air outlet are both connected to the cavity
  • the DC brushless outer rotor motor comprises a rotating shaft, a stator assembly, a casing, a plurality of permanent magnets, a front end cover and a rear end cover, and the stator assembly is fixedly mounted on the rotating shaft.
  • the outer casing is sleeved outside the stator assembly, a plurality of permanent magnets are located outside the stator assembly and are mounted on the inner side wall surface of the outer casing, and the front end cover and the rear end cover are respectively mounted at the two ends of the outer casing, and the rotating shaft is supported on the bearings of the front end cover and the rear end cover and The end cover protrudes outwardly, and a centrifugal wind wheel is nested outside the outer casing.
  • the DC brushless outer rotor motor and the centrifugal wind wheel are located inside the cavity, and bracket assemblies are respectively installed at the two ends of the rotating shaft, and the bracket assembly is installed at the periphery of the air inlet.
  • the fan volute is characterized in that the front end cover and the outer casing are integrally die-cast
  • the end of the front end cover protrudes downwardly from the annular protrusion, the annular protrusion extends into the outer casing and abuts against the inner side wall surface of the outer casing, and a plurality of blocks protrude outwardly from the outer side of the annular protrusion, and the inner side wall surface of the outer casing is die-cast and wraps the card
  • the block has a simple structure and the front end cover and the outer casing are firmly and reliably matched;
  • the mounting screw passes through the front end cover and is screwed into the positioning block to mount the front end cover on the end of the outer casing.
  • FIG. 1 is a perspective view of a DC brushless outer rotor motor of the present invention
  • FIG. 2 is an exploded view of the brushless outer rotor motor of the present invention
  • Figure 3 is a top view of the brushless outer rotor motor of the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a partial enlarged view of B-B in Figure 4.
  • Figure 6 is a front view of the brushless outer rotor motor of the present invention.
  • Figure 7 is a cross-sectional view taken along line C-C of Figure 6;
  • Figure 8 is a perspective view of the air blower of the present invention.
  • Figure 9 is an exploded view of the blower of the present invention.
  • Embodiment 1 As shown in FIG. 1 to FIG. 7 , the utility model relates to a DC brushless outer rotor motor, comprising a rotating shaft 1, a stator assembly 2, a casing 3, a plurality of permanent magnets 4, a front end cover 5 and a rear end cover 6.
  • the stator assembly 2 is mounted and fixed on the rotating shaft 1.
  • the outer casing 3 is sleeved outside the stator assembly 2.
  • a plurality of permanent magnets 4 are located outside the stator assembly 2 and mounted on the inner side wall surface of the outer casing 3.
  • the front end cover 5 and the rear end cover 6 are respectively mounted on At both ends of the outer casing 3, the rotating shaft 1 is supported on bearings of the front end cover 5 and the rear end cover 6, and the front end cover 5 and the outer casing 3 are integrally die-cast.
  • the end of the front end cover 5 projects downwardly from the annular projection 51, and the annular projection 51 projects into the outer casing 3 and abuts against the inner side wall surface of the outer casing 3.
  • a plurality of blocks 511 project outward from the outer side of the annular projection 51, and the inner side wall surface of the outer casing 3 is die-cast and encloses the block 511.
  • the end surface of the annular protrusion 51 protrudes downwardly from a plurality of positioning blocks 512, and a permanent magnet 4 is disposed between each adjacent two positioning blocks 512.
  • the mounting screw 7 passes through the front end cover 5 and is screwed into the positioning block 512 to mount the front end cover 5 on the end of the outer casing 3.
  • a plurality of glue grooves 61 are provided on the top surfaces of the front end cover 5 and the rear end cover 6.
  • the outer casing 3 is provided with a mounting flange 31 on the outside.
  • a plurality of permanent magnets 4 are adhered to the inner wall surface of the outer casing 3 by glue.
  • a shaft hole 11 is opened in the middle of the rotating shaft 1, and a lead wire 21 of the stator assembly 2 projects outward from the middle of the shaft hole 11.
  • the principle of the utility model is that the front end cover 5 and the outer casing 3 are integrally die-cast and have a simple structure.
  • the processing is easy, the cost is low, the coaxiality of the front end cover 5 and the outer casing 3 is ensured, and the motor operation is more reliable.
  • Embodiment 2 As shown in FIG. 1 to FIG. 9 , the utility model relates to a blower, which comprises a fan volute 8 , a DC brushless outer rotor motor, a centrifugal wind wheel 9 and a plurality of bracket assemblies 10 , and the fan volute 8 is opened in the middle. There is a cavity 80, an air inlet 81 is formed at both end faces of the fan volute 8, and an air outlet 82 is opened on one side of the fan volute 8.
  • the air inlet 81 and the air outlet 82 are both connected to the cavity 80, and the DC brushless
  • the rotor motor comprises a rotating shaft 1, a stator assembly 2, a casing 3, a plurality of permanent magnets 4, a front end cover 5 and a rear end cover 6.
  • the stator assembly 2 is mounted and fixed on the rotating shaft 1, and the outer casing 3 is fitted outside the stator assembly 2, and a plurality of permanent magnets 4 are arranged.
  • the front end cover 5 and the rear end cover 6 are respectively mounted at both ends of the outer casing 3, and the rotating shaft 1 is supported on the bearings of the front end cover 5 and the rear end cover 6, and both ends are covered.
  • a centrifugal wind wheel 9 is nested outside the outer casing 3, and the direct current brushless outer rotor motor and the centrifugal wind wheel 9 are located inside the cavity 80, and the bracket assembly 10 is respectively mounted on both ends of the rotating shaft 1, and the bracket assembly 10 is installed.
  • the front end cover 5 and the outer casing 3 are Integrated die-casting.
  • the principle of the utility model is that the front end cover 5 and the outer casing 3 are integrally die-casted, the structure is simple, the processing is easy, the cost is low, the coaxiality of the front end cover 5 and the outer casing 3 is ensured, and the motor operation is more reliable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种直流无刷外转子电机及其应用的鼓风机，包括转轴(1)、定子组件(2)、外壳(3)、若干永磁体(4)、前端盖(5)和后端盖(6)，定子组件(2)安装固定在转轴(1)上，外壳(3)套装在定子组件(2)外，若干永磁体(4)位于定子组件(2)外侧并安装在外壳(3)的内侧壁面上，前端盖(5)和后端盖(6)分别安装在外壳(3)两端，转轴(1)支承在前端盖(5)和后端盖(6)的轴承上，前端盖(5)和外壳(3)是一体压铸成型的。该直流无刷外转子电机结构简单，安装方便，电机外壳与端盖的同轴度得到保证，而且成本低、加工容易。

Description

一种直流无刷外转子电机及其应用的鼓风机 技术领域：
本实用新型涉及一种直流无刷外转子电机及其应用的鼓风机。
背景技术：
现有的直流无刷外转子电机包括转轴、定子组件、外壳、若干永磁体、前端盖和后端盖，定子组件安装固定在转轴上，外壳套装在定子组件外，若干永磁体位于定子组件外侧并安装在外壳的内侧壁面上，前端盖和后端盖分别安装在外壳两端，转轴支承在前端盖和后端盖的轴承上，但是该外转子电机成本较高，安装麻烦，外壳与端盖的同轴度难以保证，容易影响电机的正常运行。
发明内容：
本实用新型的目的是提供一种直流无刷外转子电机及其应用的鼓风机，该外转子电机结构简单，安装方便，电机外壳与端盖的同轴度得到保证，而且成本低、加工容易。
该鼓风机结构简单、安装方便，成本低，运行可靠。
本实用新型的目的是通过下述技术方案予以实现的。
一种直流无刷外转子电机，包括转轴、定子组件、外壳、若干永磁体、前端盖和后端盖，定子组件安装固定在转轴上，外壳套装在定子组件外，若干永磁体位于定子组件外侧并安装在外壳的内侧壁面上，前端盖和后端盖分别安装在外壳两端，转轴支承在前端盖和后端盖的轴承上，其特征在于：前端盖和外壳是一体压铸成型的。
上述所述的前端盖端部往下伸出环形凸起，环形凸起伸入到外壳里面并紧贴外壳的内侧壁面。
上述所述的环形凸起外侧往外伸出若干卡块，外壳的内侧壁面压铸并包裹住卡块。
上述所述的环形凸起的端面往下伸出若干定位块，每相邻的两定位块之间都设置有永磁体。
上述所述的安装螺钉穿过前端盖并拧进定位块里面从而把前端盖安装在外壳的端部上。
上述所述的前端盖和后端盖的顶面上都设有若干胶泥槽。
上述所述的外壳外面套装有安装法兰。
上述所述的若干永磁体是通过胶水粘贴在外壳的内侧壁面上。
上述所述的转轴中间开设有轴孔，定子组件的引出线从轴孔中间往外伸出。
一种鼓风机，包括风机蜗壳、直流无刷外转子电机、离心风轮和若干支架组件，风机蜗壳中间开设有空腔，在风机蜗壳两端面开设进风口，在风机蜗壳一侧面开设出风口，进风口和出风口均与空腔连通，所述的直流无刷外转子电机包括转轴、定子组件、外壳、若干永磁体、前端盖和后端盖，定子组件安装固定在转轴上，外壳套装在定子组件外，若干永磁体位于定子组件外侧并安装在外壳的内侧壁面上，前端盖和后端盖分别安装在外壳两端，转轴支承在前端盖和后端盖的轴承上并两端盖往外伸出，在外壳外面嵌套安装有离心风轮，直流无刷外转子电机和离心风轮位于空腔里面，在转轴两端分别安装有支架组件，支架组件安装在进风口外围的风机蜗壳上，其特征在于：前端盖和外壳是一体压铸成型的
本实用新型与现有技术相比，具有如下效果：
1)前端盖和外壳是一体压铸成型的，结构简单，加工容易，成本低，前端盖和外壳的同轴度得到保证，使电机运行更加可靠；
2)前端盖端部往下伸出环形凸起，环形凸起伸入到外壳里面并紧贴外壳的内侧壁面，环形凸起外侧往外伸出若干卡块，外壳的内侧壁面压铸并包裹住卡块，结构简单，前端盖和外壳的配合牢固可靠；
3)环形凸起的端面往下伸出若干定位块，每相邻的两定位块之间都设置有永磁体，永磁体的定位安装更加方便、准确，提高操作效率；
4)安装螺钉穿过前端盖并拧进定位块里面从而把前端盖安装在外壳的端部上，结构简单，安装方便牢固。
附图说明：
图1是本实用新型直流无刷外转子电机的立体图；
图2是本实用新型直流无刷外转子电机的分解图；
图3是本实用新型直流无刷外转子电机的上视图；
图4是图3中A-A剖视图；
图5是图4中B-B局部放大图；
图6是本实用新型直流无刷外转子电机的前视图；
图7是图6中C-C剖视图；
图8是本实用新型鼓风机的立体图；
图9是本实用新型鼓风机的分解图。
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7所示，本实用新型是一种直流无刷外转子电机，包括转轴1、定子组件2、外壳3、若干永磁体4、前端盖5和后端盖6，定子组件2安装固定在转轴1上，外壳3套装在定子组件2外，若干永磁体4位于定子组件2外侧并安装在外壳3的内侧壁面上，前端盖5和后端盖6分别安装在外壳3两端，转轴1支承在前端盖5和后端盖6的轴承上，前端盖5和外壳3是一体压铸成型的。前端盖5端部往下伸出环形凸起51，环形凸起51伸入到外壳3里面并紧贴外壳3的内侧壁面。环形凸起51外侧往外伸出若干卡块511，外壳3的内侧壁面压铸并包裹住卡块511。环形凸起51的端面往下伸出若干定位块512，每相邻的两定位块512之间都设置有永磁体4。安装螺钉7穿过前端盖5并拧进定位块512里面从而把前端盖5安装在外壳3的端部上。前端盖5和后端盖6的顶面上都设有若干胶泥槽61。外壳3外面套装有安装法兰31。若干永磁体4是通过胶水粘贴在外壳3的内侧壁面上。转轴1中间开设有轴孔11，定子组件2的引出线21从轴孔11中间往外伸出。
本实用新型的原理是：前端盖5和外壳3是一体压铸成型的，结构简单， 加工容易，成本低，前端盖5和外壳3的同轴度得到保证，使电机运行更加可靠。
实施例二：如图1至图9所示，本实用新型是一种鼓风机，包括风机蜗壳8、直流无刷外转子电机、离心风轮9和若干支架组件10，风机蜗壳8中间开设有空腔80，在风机蜗壳8两端面开设进风口81，在风机蜗壳8一侧面开设出风口82，进风口81和出风口82均与空腔80连通，所述的直流无刷外转子电机包括转轴1、定子组件2、外壳3、若干永磁体4、前端盖5和后端盖6，定子组件2安装固定在转轴1上，外壳3套装在定子组件2外，若干永磁体4位于定子组件2外侧并安装在外壳3的内侧壁面上，前端盖5和后端盖6分别安装在外壳3两端，转轴1支承在前端盖5和后端盖6的轴承上并两端盖往外伸出，在外壳3外面嵌套安装有离心风轮9，直流无刷外转子电机和离心风轮9位于空腔80里面，在转轴1两端分别安装有支架组件10，支架组件10安装在进风口81外围的风机蜗壳8上，前端盖5和外壳3是一体压铸成型的。
本实用新型的原理是：前端盖5和外壳3是一体压铸成型的，结构简单，加工容易，成本低，前端盖5和外壳3的同轴度得到保证，使电机运行更加可靠。
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 (10)

  1. 一种直流无刷外转子电机，包括转轴(1)、定子组件(2)、外壳(3)、若干永磁体(4)、前端盖(5)和后端盖(6)，定子组件(2)安装固定在转轴(1)上，外壳(3)套装在定子组件(2)外，若干永磁体(4)位于定子组件(2)外侧并安装在外壳(3)的内侧壁面上，前端盖(5)和后端盖(6)分别安装在外壳(3)两端，转轴(1)支承在前端盖(5)和后端盖(6)的轴承上，其特征在于：前端盖(5)和外壳(3)是一体压铸成型的。
  2. 根据权利要求1所述的一种直流无刷外转子电机，其特征在于：前端盖(5)端部往下伸出环形凸起(51)，环形凸起(51)伸入到外壳(3)里面并紧贴外壳(3)的内侧壁面。
  3. 根据权利要求2所述的一种直流无刷外转子电机，其特征在于：环形凸起(51)外侧往外伸出若干卡块(511)，外壳(3)的内侧壁面压铸并包裹住卡块(511)。
  4. 根据权利要求2或3所述的一种直流无刷外转子电机，其特征在于：环形凸起(51)的端面往下伸出若干定位块(512)，每相邻的两定位块(512)之间都设置有永磁体(4)。
  5. 根据权利要求4所述的一种直流无刷外转子电机，其特征在于：它还包括若干安装螺钉(7)，安装螺钉(7)穿过前端盖(5)并拧进定位块(512)里面从而把前端盖(5)安装在外壳(3)的端部上。
  6. 根据权利要求1或2或3所述的一种直流无刷外转子电机，其特征在于：前端盖(5)和后端盖(6)的顶面上都设有若干胶泥槽(61)。
  7. 根据权利要求1或2或3所述的一种直流无刷外转子电机，其特征在于：外壳(3)外面套装有安装法兰(31)。
  8. 根据权利要求1或2或3所述的一种直流无刷外转子电机，其特征在于：若干永磁体(4)是通过胶水粘贴在外壳(3)的内侧壁面上。
  9. 根据权利要求1或2或3所述的一种直流无刷外转子电机，其特征在于： 转轴(1)中间开设有轴孔(11)，定子组件(2)的引出线(21)从轴孔(11)中间往外伸出。
  10. 一种应用权利要求1至9所述的任何一项一种直流无刷外转子电机的鼓风机，包括风机蜗壳(8)、直流无刷外转子电机、离心风轮(9)和若干支架组件(10)，风机蜗壳(8)中间开设有空腔(80)，在风机蜗壳(8)两端面开设进风口(81)，在风机蜗壳(8)一侧面开设出风口(82)，进风口(81)和出风口(82)均与空腔(80)连通，所述的直流无刷外转子电机包括转轴(1)、定子组件(2)、外壳(3)、若干永磁体(4)、前端盖(5)和后端盖(6)，定子组件(2)安装固定在转轴(1)上，外壳(3)套装在定子组件(2)外，若干永磁体(4)位于定子组件(2)外侧并安装在外壳(3)的内侧壁面上，前端盖(5)和后端盖(6)分别安装在外壳(3)两端，转轴(1)支承在前端盖(5)和后端盖(6)的轴承上并两端盖往外伸出，在外壳(3)外面嵌套安装有离心风轮(9)，直流无刷外转子电机和离心风轮(9)位于空腔(80)里面，在转轴(1)两端分别安装有支架组件(10)，支架组件(10)安装在进风口(81)外围的风机蜗壳(8)上，其特征在于：前端盖(5)和外壳(3)是一体压铸成型的。
PCT/CN2014/087339 2014-03-24 2014-09-24 一种直流无刷外转子电机及其应用的鼓风机 WO2015143853A1 (zh)

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CN104505966A (zh) * 2014-12-30 2015-04-08 深圳市双环全新机电股份有限公司 外转子无刷电动机
CN204733056U (zh) * 2015-06-15 2015-10-28 中山大洋电机股份有限公司 一种直流无刷外转子电机及其应用的风机
CN204835757U (zh) * 2015-07-04 2015-12-02 中山大洋电机股份有限公司 一种外转子电机及应用其的风机
CN204928499U (zh) * 2015-09-29 2015-12-30 佛山市启正电气有限公司 一种便于轴承精准安装的吊扇转子
CN109245372B (zh) * 2018-10-29 2023-10-20 深圳市艺峰马达配件有限公司 一种风扇无刷电机
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