WO2017193513A1 - 双轴伸外转子电机及应用其的风机 - Google Patents

双轴伸外转子电机及应用其的风机 Download PDF

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Publication number
WO2017193513A1
WO2017193513A1 PCT/CN2016/098491 CN2016098491W WO2017193513A1 WO 2017193513 A1 WO2017193513 A1 WO 2017193513A1 CN 2016098491 W CN2016098491 W CN 2016098491W WO 2017193513 A1 WO2017193513 A1 WO 2017193513A1
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WIPO (PCT)
Prior art keywords
mounting
bearing
bearing chamber
outer rotor
end plate
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PCT/CN2016/098491
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English (en)
French (fr)
Inventor
曾崇生
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中山大洋电机股份有限公司
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Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2017193513A1 publication Critical patent/WO2017193513A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof

Definitions

  • the utility model relates to a double shaft extension outer rotor motor and a fan using the same.
  • the double-shaft extension outer rotor motor for driving the wind wheel has the structure shown in FIG. 1 and includes a stator assembly A1, a rotor assembly A2, a mounting shaft A3, a mounting leg A4, a bearing housing A5 and a bearing A6, and a rotor assembly A2.
  • the rotor casing A21 and the permanent magnet A22 are included.
  • the rotor casing A21 includes a cylindrical side wall (not shown) and an end plate A23 at one end of the side wall.
  • the inner wall surface of the side wall of the rotor casing A21 is mounted with a permanent magnet A22.
  • the outer side of the A21 protrudes circumferentially from the mounting foot A4 (or the mounting ring), and the bearing housing A5 is disposed in the middle of the end plate A23 of the rotor housing A21.
  • the two bearings A6 are installed in the bearing housing A5, and the central part of the mounting shaft A3 is set on the bearing A6.
  • the mounting plate in the middle of the wheel is mounted with the mounting foot A4, and there are certain problems in the design: 1) Since the rotor housing A21 is supported on the mounting shaft A3 through the bearing housing A5 on the end plate A23 at one end, the bearing housing A5 is supported by The two spaced bearings A6 are supported on the mounting shaft A3.
  • the mounting surface of the mounting arm A4 of the rotor housing A21 is not located between the two bearings A6, resulting in a problem of unbalanced force, affecting bearing life and affecting the motor. Life and smooth operation. 2)
  • the wind wheel transmits the force to the two bearings A6 through the mounting foot A4, the cylindrical side wall, the end plate A23, and the bearing seat A5, and the bearing seat A5 is located at one side of the end plate A23 of the rotor casing, so that the force is not Equilibrium, affecting the service life of the bearing;
  • the axial dimension of the whole motor is too large, which affects the air intake of the fan; 4)
  • the heat dissipation structure of the motor is not good, and the heat dissipation effect is poor.
  • the purpose of the utility model is to provide a double-shaft extension outer rotor motor and a fan using the same, and the force distribution is more balanced, thereby effectively ensuring bearing operation, reducing noise and prolonging service life.
  • a dual-shaft extended outer rotor motor comprising a stator assembly, an outer rotor assembly and a mounting shaft, the stator assembly is mounted and fixed on a middle portion of the mounting shaft, and the outer rotor assembly is disposed outside the stator assembly to be rotatable around the mounting shaft Rotating, the two ends of the mounting shaft respectively extend from the ends of the stator assembly and the rotor assembly, the outer rotor assembly including a rotor housing, a bearing, and a permanent magnet, the rotor housing including a cylindrical side wall and an end at one end of the side wall a plate, wherein a permanent magnet is mounted on an inner wall surface of the side wall of the rotor casing, a plurality of mounting legs are circumferentially protruded outside the rotor casing, and a plurality of mounting feet are on the same mounting surface, and a bearing seat is disposed in the middle of the end plate of the rotor casing, and the bearing seat is disposed on the bearing seat a bearing chamber and
  • the mounting faces of the plurality of mounting feet described above are coincident with the end plates, and the first bearing chamber and the second bearing chamber are respectively located at two sides of the end plates.
  • the first bearing chamber and the second bearing chamber described above are symmetrically disposed on both sides of the end plate.
  • the stator assembly described above comprises a stator core and a coil winding, a plurality of teeth are arranged outside the stator core, a central hole and a through hole are formed in the middle, and the mounting shaft is inserted in the center hole, and a through hole is formed at one side of the center hole.
  • the radius of the through hole is larger than the radius of the center hole to form a cavity between the mounting shaft and the inner wall of the through hole, and a part of the bearing seat on one side of the end plate is embedded in the cavity.
  • the end plate described above is provided with a plurality of ventilation holes, and the ventilation holes are distributed along the circumferential direction.
  • the above-mentioned end plate is provided with a plurality of reinforcing ribs, and a plurality of reinforcing ribs are circumferentially distributed around the first bearing outer circumference.
  • the mounting shaft described above is mounted with a baffle on one side of the stator assembly and opposite the end plate.
  • a plurality of heat dissipation holes are circumferentially disposed on the baffle plate.
  • the outer edge of the baffle plate described above is provided with an inclined portion inclined toward the rotor casing, and the baffle is provided with an outlet port.
  • the side wall of the rotor casing described above is embedded with a magnetically conductive yoke portion, and the permanent magnet is mounted on the yoke portion.
  • a fan comprises a volute, a wind wheel, a motor and a motor bracket, an air inlet is formed at both ends of the volute, an air outlet formed on a side wall of the volute, and a motor bracket is arranged at the position of the air inlet, wherein:
  • the motor is the outer rotor motor according to any one of claims 1 to 9, wherein the outer end of the motor bracket is mounted on the volute, and the inner end of the motor bracket is mounted at one end of the support shaft, the wind wheel is located inside the volute, and the middle of the wind wheel is installed.
  • the plate is mounted for attachment to a plurality of mounting feet on the outer edge of the rotor housing.
  • a plurality of mounting legs extend circumferentially on the outer side of the rotor casing, a plurality of mounting feet are on the same mounting surface, and a bearing seat is arranged in the middle of the end plate of the rotor casing, and the mounting faces of the plurality of mounting feet are located in the first bearing chamber and the second bearing chamber Between, the force distribution is more uniform, which is beneficial to ensure bearing operation, reduce noise and extend the service life of the motor.
  • the mounting surface on which the plurality of mounting feet are located coincides with the end plate, the first bearing chamber and the second bearing chamber are respectively located at two sides of the end plate, and the first bearing chamber and the second bearing chamber are symmetrically disposed on both sides of the end plate.
  • the end plate and the second bearing chamber are respectively located on both sides of the end plate, which is more favorable for the force distribution to be more uniform, which is beneficial to ensure bearing operation, reduce noise and prolong the service life of the motor.
  • a central hole and a through hole are formed in the middle of the stator core, and the mounting shaft is inserted into the center hole, and one side of the center hole is a through hole, and the radius of the through hole is larger than the radius of the center hole so as to be in the inner wall of the mounting shaft and the through hole A cavity is formed therebetween, and a part of the bearing seat on one side of the end plate is embedded in the cavity; the motor is flattened and the volume is reduced.
  • a plurality of ventilation holes are arranged on the end plate, the ventilation holes are distributed along the circumferential direction, and the mounting shaft is mounted with a baffle.
  • the baffle is located on one side of the stator assembly and opposite to the end plate, and the baffle is arranged in the circumferential direction. The vents; this creates an axial flow of air that dissipates the stator assembly.
  • a plurality of reinforcing ribs are arranged on the end plate, and a plurality of reinforcing ribs are circumferentially spaced around the first bearing outer circumference.
  • the reinforcing ribs are equivalent to the structural strength of the reinforced end plates, and are also equivalent to a set of wind blades, which generate axial air blowing. The effect is that the airflow flows from the vents on the baffle through the stator assembly and finally out of the vents on the end plates.
  • FIG. 1 is a schematic structural view of a conventional biaxial extension outer rotor motor
  • Figure 2 is a perspective view of an angle of the present invention
  • Figure 3 is a perspective view of another angle of the present invention.
  • Figure 4 is a front view of the utility model
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 6 is an exploded perspective view of the present invention.
  • Figure 7 is a plan view of the rotor assembly of the present invention.
  • Figure 8 is a cross-sectional view taken along line B-B of Figure 7;
  • Figure 9 is a perspective view of the stator core of the stator assembly of the present invention.
  • Figure 10 is a perspective view showing the assembly of the stator core and the rotating shaft of the present invention.
  • Figure 11 is a perspective view of a fan in the embodiment
  • Figure 12 is a front elevational view of a fan in the embodiment
  • Figure 13 is a cross-sectional view taken along line C-C of Figure 10;
  • Embodiment 1 As shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8, this embodiment is a biaxial extension outer rotor motor, including a stator assembly 1, an outer rotor assembly 2, and an installation.
  • the shaft 3, the stator assembly 1 is fixedly mounted on the middle of the mounting shaft 3, and the outer rotor assembly 2 is fitted outside the stator assembly 1 to be rotatable about the mounting shaft 3.
  • the two ends of the mounting shaft 3 are respectively from the stator assembly 1 and the outer rotor assembly 2.
  • the outer rotor assembly 2 includes a rotor housing and a permanent magnet 25, the rotor housing including a cylindrical side wall 21 and an end plate 22 at one end of the side wall, wherein the inner wall surface of the rotor housing side wall 21 is mounted
  • the permanent magnet 25 has a plurality of mounting legs 23 extending circumferentially on the outer side of the rotor casing, a plurality of mounting legs 23 are on the same mounting surface, a bearing seat 24 is disposed in the middle of the end plate 22 of the rotor casing, and a first bearing chamber 241 and a first bearing chamber 24 are disposed on the bearing housing 24
  • the second bearing chamber 242 is axially spaced apart from the first bearing chamber 241 and the second bearing chamber 242.
  • the first bearing chamber 241 and the second bearing chamber 242 are internally mounted with a bearing 4, and the central portion of the mounting shaft 3 is mounted in the first bearing chamber 241. And the bearing 4 of the second bearing chamber 242, a plurality of mounting feet 2
  • the mounting surface 100 in which it is located is located between the first bearing chamber 241 and the second bearing chamber 242.
  • a magnetically conductive yoke is embedded in the side wall of the rotor casing, and the permanent magnet 25 is mounted on the yoke.
  • the mounting surface 100 at which the plurality of mounting feet 23 are located coincides with the end plate 22, and the first bearing chamber 241 and the second bearing chamber 242 are respectively located on both sides of the end plate 22.
  • the most ideal situation is the first The bearing chamber 241 and the second bearing chamber 242 are symmetrically disposed on both sides of the end plate 22.
  • the stator assembly 1 includes a stator core 10 and coil windings, and a plurality of teeth are arranged outside the stator core 10, and a center hole 11 and a through hole 12 are formed in the middle, and the shaft 3 is mounted.
  • a through hole 12 Inserted in the central hole 11 , on one side of the central hole 11 is a through hole 12 having a radius larger than the radius of the central hole 11 to form a cavity 13 between the mounting shaft 3 and the inner wall of the through hole 12 at the end
  • a part of the bearing housing 24 on one side of the plate 22 is embedded in the cavity 13, which flattens the motor and reduces the volume of the motor.
  • a plurality of venting holes 222 are defined in the end plate 22.
  • the venting holes 222 are circumferentially spaced apart.
  • the end plates 22 are provided with a plurality of reinforcing ribs 221, and the plurality of reinforcing ribs 221 are circumferentially spaced around the periphery of the first bearing chamber 241.
  • a baffle 5 is mounted on the mounting shaft 3, and the baffle 5 is located on one side of the stator assembly 1 and opposed to the end plate 22.
  • a plurality of heat dissipation holes 51 are provided on the shutter 5 in the circumferential direction.
  • the outer edge of the baffle 5 is provided with an inclined portion 42 which is inclined toward the rotor casing, and the baffle 5 is provided with an outlet port 53, and the lead wire of the stator assembly 1 passes through the outlet port 53.
  • the side wall 21 of the rotor casing is embedded with a magnetically permeable yoke 211, the permanent magnet 25 is mounted on the yoke, the rotor casing is a side aluminum die casting, and the magnetic yoke portion 211 is embedded in the side wall of the rotor casing during die casting. 21 inside.
  • Embodiment 2 The second embodiment of the present invention is a fan, as shown in FIG. 11, FIG. 12 and FIG. 13, including a volute 6, a wind wheel 7, a motor and a motor bracket 8, and the two ends of the volute 6 are formed.
  • the tuyere, the air outlet formed on the side wall of the volute 6, is provided with a motor bracket 8 at the position of the air inlet, the outer end of the motor bracket 8 is mounted on the volute 6, and the inner end of the motor bracket 8 is mounted with one end supporting the mounting shaft 3, the wind
  • the wheel 4 is located inside the volute 6, and the mounting plate 9 in the middle of the rotor 7 is mounted and connected to a plurality of mounting legs 23 on the outside of the rotor casing 2.
  • the motor adopts the outer rotor motor described in the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种双轴伸外转子电机及应用其的风机,包括定子组件(1)、外转子组件(2)和安装轴(3),转子外壳包括筒状的侧壁(21)和位于侧壁(21)一端的端板(22),在转子外壳外侧沿周向伸出若干安装脚(23),若干安装脚(23)处于同一安装面(100),转子外壳的端板(22)中间设置有轴承座(24),轴承座(24)上设置第一轴承室(241)和第二轴承室(242),安装轴(3)中部安装在第一轴承室(241)和第二轴承室(242)的轴承(4)上,若干安装脚(23)所处的安装面(100)位于第一轴承室(241)和第二轴承室(242)之间,蜗壳(6)里面的风轮(7)中间的安装板(9)与转子外壳(2)外侧的若干安装脚(23)安装连接,它受力分布更加均衡,有效保证轴承运转,减少噪音,延长使用寿命。

Description

双轴伸外转子电机及应用其的风机 技术领域:
本实用新型涉及双轴伸外转子电机及应用其的风机。
背景技术:
目前,用来驱动风轮的双轴伸外转子电机,其结构如图1所示,包括定子组件A1、转子组件A2、安装轴A3、安装脚A4、轴承座A5和轴承A6,转子组件A2包括转子外壳A21和永磁体A22,转子外壳A21包括筒状的侧壁(没有标示)和位于侧壁一端的端板A23,其中转子外壳A21侧壁的内壁面安装有永磁体A22,在转子外壳A21外侧沿周向伸出安装脚A4(或者安装环),在转子外壳A21的端板A23中间设置轴承座A5,在轴承座A5里面间隔安装两轴承A6,安装轴A3中部套装在轴承A6上,风轮中部的安装板与安装脚A4安装在一起,其设计上都存在一定问题:1)由于转子外壳A21通过一端的端板A23上的轴承座A5支撑在安装轴A3上,由于轴承座A5靠两个间隔的轴承A6支承载安装轴A3上,转子外壳A21的安装脚A4所处的安装面不位于两轴承A6中间,导致存在受力不均衡的问题,影响轴承寿命,从而影响电机的工作寿命和平稳运行。2)风轮通过安装脚A4、筒状的侧壁、端板A23、轴承座A5将力传递到两个轴承A6,轴承座A5位于转子外壳的端板A23的一侧,使到受力不均衡,影响轴承的使用寿命;3)整个电机的轴向尺寸过大,影响风机的进风;4)电机的散热结构不佳,散热效果差。
发明内容:
本实用新型的目的是提供一种双轴伸外转子电机及应用其的风机,其受力分布更加均衡,有效保证轴承运转,减少噪音,延长使用寿命。
本实用新型的目的是通过下述技术方案予以实现的:
一种双轴伸外转子电机,包括定子组件、外转子组件和安装轴,定子组件安装固定在安装轴的中部上,外转子组件套装在定子组件外面可以绕安装轴旋 转,安装轴的两端分别从定子组件和转子组件的端部延伸出来,所述的外转子组件包括转子外壳、轴承、永磁体,转子外壳包括筒状的侧壁和位于侧壁一端的端板,其中转子外壳侧壁的内壁面安装有永磁体,在转子外壳外侧沿周向伸出若干安装脚,若干安装脚处于同一安装面,转子外壳的端板中间设置有轴承座,轴承座上设置第一轴承室和第二轴承室,第一轴承室和第二轴承室轴向间隔开来,第一轴承室和第二轴承室里面安装轴承,安装轴中部安装在第一轴承室和第二轴承室的轴承上,其特征在于:若干安装脚所处的安装面位于第一轴承室和第二轴承室之间。
上述所述的若干安装脚处在的安装面与端板重合,第一轴承室和第二轴承室分别位于端板两侧。
上述所述的第一轴承室和第二轴承室对称地设置在端板两侧。
上述所述的定子组件包括定子铁芯和线圈绕组,定子铁芯外侧设置若干个齿,中间形成中心孔和通孔,安装轴插装在中心孔里面,在中心孔的一侧是通孔,通孔的半径大于中心孔半径,以便在安装轴与通孔内壁之间形成空腔,位于端板一侧的部分轴承座嵌入空腔里面。
上述所述的端板上设置若干个通风孔,通风孔沿周向间隔分布。
上述所述的端板上设置若干个加强筋,若干加强筋绕第一轴承室外围周向间隔分布。
上述所述的安装轴安装有挡板,挡板位于定子组件的一侧且与端板的相对。
上述所述的挡板上沿周向设置若干个散热孔。
上述所述的挡板的外缘设置有向转子外壳方向倾斜的倾斜部,挡板上设置有出线口。
上述所述的转子外壳的侧壁里面镶嵌有导磁的轭部,永磁体安装在轭部上。
一种风机,包括蜗壳、风轮、电机和电机支架,蜗壳两端形成进风口,在蜗壳的侧壁形成的出风口,在进风口的位置设置电机支架,其特征在于:所述 的电机是权利要求1至9任何一项所述外转子电机,电机支架外端安装在蜗壳上,电机支架内端安装支承安装轴的一端,风轮位于蜗壳里面,风轮中间的安装板与转子外壳外侧沿的若干安装脚安装连接。
本实用新型与现有技术相比,具有如下效果:
1)在转子外壳外侧沿周向伸出若干安装脚,若干安装脚处于同一安装面,转子外壳的端板中间设置有轴承座,若干安装脚所处的安装面位于第一轴承室和第二轴承室之间,使到受力分布更加均匀,有利于保证轴承运转,减少噪音,延长电机使用寿命。
2)若干安装脚处在的安装面与端板重合,第一轴承室和第二轴承室分别位于端板两侧,且第一轴承室和第二轴承室对称地设置在端板两侧,端板作为受力的关键部件,将第一轴承室和第二轴承室分别位于端板两侧,有利于受力分布更加均匀,有利于保证轴承运转,减少噪音,延长电机使用寿命。
3)定子铁芯中间形成中心孔和通孔,安装轴插装在中心孔里面,在中心孔的一侧是通孔,通孔的半径大于中心孔半径,以便在安装轴与通孔内壁之间形成空腔,使端板一侧的部分轴承座嵌入空腔里面;使电机扁平化,缩小体积。
4)端板上设置若干个通风孔,通风孔沿周向间隔分布,安装轴安装有挡板,挡板位于定子组件的一侧且与端板的相对,挡板上沿周向设置若干个散热孔;这样可以形成轴向的气流,对定子组件进行散热。
5)端板上设置若干个加强筋,若干加强筋绕第一轴承室外围周向间隔分布,加强筋除了具有加固端板的结构强度外,还相当于一组风叶,产生轴向吹风的效果,使气流从挡板上的散热孔流经定子组件,最后从端板上的通风孔流出。
附图说明:
图1是现有的双轴伸外转子电机的结构示意图;
图2是本实用新型的一个角度的立体图;
图3是本实用新型的另一个角度的立体图;
图4是本实用新型的主视图;
图5是图4的A-A剖视图;
图6是本实用新型的立体分解图;
图7是本实用新型的转子组件的俯视图;
图8是图7的B-B的剖视图;
图9是本实用新型的定子组件中定子铁芯的立体图;
图10是本实用新型的定子铁芯与转轴的装配立体图;
图11是实施例中一种风机的立体示意图;
图12是实施例中一种风机的主视图;
图13是图10的C-C的剖视图;
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2、图3、图4、图5、图6、图7和图8所示,本实施例是双轴伸外转子电机,包括定子组件1、外转子组件2和安装轴3,定子组件1安装固定在安装轴3的中部上,外转子组件2套装在定子组件1外面可以绕安装轴3旋转,安装轴3的两端分别从定子组件1和外转子组件2的端部延伸出来,所述的外转子组件2包括转子外壳和永磁体25,转子外壳包括筒状的侧壁21和位于侧壁一端的端板22,其中转子外壳侧壁21的内壁面安装有永磁体25,在转子外壳外侧沿周向伸出若干安装脚23,若干安装脚23处于同一安装面,转子外壳的端板22中间设置有轴承座24,轴承座24上设置第一轴承室241和第二轴承室242,第一轴承室241和第二轴承室242轴向间隔开来,第一轴承室241和第二轴承室242里面安装有轴承4,安装轴3中部安装在第一轴承室241和第二轴承室242的轴承4上,若干安装脚23所处的安装面100位于第一轴承室241和第二轴承室242之间。转子外壳的侧壁里面镶嵌有导磁的轭部,永磁体25安装在轭部上。若干安装脚23处在的安装面100与端板22重合,第一轴承室241和第二轴承室242分别位于端板22两侧。当然,最理想的状况是第一 轴承室241和第二轴承室242对称地设置在端板22两侧。
如图5、图9和图10所示,所述的定子组件1包括定子铁芯10和线圈绕组,定子铁芯10外侧设置若干个齿,中间形成中心孔11和通孔12,安装轴3插装在中心孔11里面,在中心孔11的一侧是通孔12,通孔12的半径大于中心孔11半径,以便在安装轴3与通孔12内壁之间形成空腔13,位于端板22一侧的部分轴承座24嵌入空腔13里面,使电机扁平化,缩小电机体积。
端板22上设置若干个通风孔222,通风孔222沿周向间隔分布,端板22上设置若干个加强筋221,若干加强筋221绕第一轴承室241外围周向间隔分布。在安装轴3安装有挡板5,挡板5位于定子组件1的一侧且与端板22相对。
挡板5上沿周向设置若干个散热孔51。
挡板5的外缘设置有向转子外壳方向倾斜的倾斜部42,挡板5上设置有出线口53,定子组件1的引出线从出线口53穿过。
转子外壳的侧壁21里面镶嵌有导磁的轭部211,永磁体25安装在轭部上,转子外壳是一侧铝压铸件,导磁的轭部211在压铸时嵌入到转子外壳的侧壁21里面。
实施例二:本实用新型的实施例二是一种风机,如图11、图12、图13所示,包括蜗壳6、风轮7、电机和电机支架8,蜗壳6两端形成进风口,在蜗壳6的侧壁形成的出风口,在进风口的位置设置电机支架8,电机支架8外端安装在蜗壳6上,电机支架8内端安装支承安装轴3的一端,风轮4位于蜗壳6里面,风轮7中间的安装板9与转子外壳2外侧的若干安装脚23安装连接。所述的电机采用实施例一所述的外转子电机。
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 (11)

  1. 双轴伸外转子电机,包括定子组件(1)、外转子组件(2)和安装轴(3),定子组件(1)安装固定在安装轴(3)的中部上,外转子组件(2)套装在定子组件(1)外面可以绕安装轴(3)旋转,安装轴(3)的两端分别从定子组件(1)和外转子组件(2)的端部延伸出来,所述的外转子组件(2)包括转子外壳和永磁体(25),转子外壳包括筒状的侧壁(21)和位于侧壁(21)一端的端板(22),其中转子外壳侧壁(21)的内壁面安装有永磁体(25),在转子外壳外侧沿周向伸出若干安装脚(23),若干安装脚(23)处于同一安装面,转子外壳的端板(22)中间设置有轴承座(24),轴承座(24)上设置第一轴承室(241)和第二轴承室(242),第一轴承室(241)和第二轴承室(242)轴向间隔开来,第一轴承室(241)和第二轴承室(242)里面安装有轴承(4),安装轴(3)中部安装在第一轴承室(241)和第二轴承室(242)的轴承(4)上,其特征在于:若干安装脚(23)所处的安装面位于第一轴承室(241)和第二轴承室(242)之间。
  2. 根据权利要求1所述的双轴伸外转子电机,其特征在于:若干安装脚(23)处在的安装面(100)与端板(22)重合,第一轴承室(241)和第二轴承室(242)分别位于端板(22)两侧。
  3. 根据权利要求2所述的双轴伸外转子电机,其特征在于:第一轴承室(241)和第二轴承室(242)对称地设置在端板(22)两侧。
  4. 根据权利要求1或2或3所述的双轴伸外转子电机,其特征在于:所述的定子组件(1)包括定子铁芯(1)和线圈绕组,定子铁芯(1)外侧设置若干个齿,中间形成中心孔(11)和通孔(12),安装轴(3)插装在中心孔(11)里面,在中心孔(11)的一侧是通孔(12),通孔(12)的半径大于中心孔(11)半径,以便在安装轴(3)与通孔(12)内壁之间形成空腔(13),位于端板(22)一侧的部分轴承座(24)嵌入空腔(13)里面。
  5. 根据权利要求4所述的双轴伸外转子电机,其特征在于:端板(22)上设置若干个通风孔(222),通风孔(222)沿周向间隔分布。
  6. 根据权利要求4所述的双轴伸外转子电机,其特征在于:端板(22)上设置若干个加强筋(221),若干加强筋(221)绕第一轴承室(241)外围周向间隔分布。
  7. 根据权利要求4所述的双轴伸外转子电机,其特征在于:在安装轴(3)安装有挡板(5),挡板(5)位于定子组件(1)的一侧且与端板(22)的相对。
  8. 根据权利要求7所述的双轴伸外转子电机,其特征在于:挡板(5)上沿周向设置若干个散热孔(51)。
  9. 根据权利要求8所述的双轴伸外转子电机,其特征在于:挡板(5)的外缘设置有向转子外壳方向倾斜的倾斜部(52),挡板(5)上设置有出线口(53)。
  10. 根据权利要求1或2或3所述的双轴伸外转子电机,其特征在于:转子外壳的侧壁里面镶嵌有导磁的轭部(211),永磁体(25)安装在轭部(211)上。
  11. 一种风机,包括蜗壳(6)、风轮(7)、电机和电机支架(8),蜗壳(6)两端形成进风口,在蜗壳(6)的侧壁形成的出风口,在进风口的位置设置电机支架(8),其特征在于:所述的电机是权利要求1至9任何一项所述外转子电机,电机支架(8)外端安装在蜗壳(6)上,电机支架(8)内端安装支承安装轴(3)的一端,风轮(7)位于蜗壳(6)里面,风轮(7)中间的安装板(9)与转子外壳外侧沿的若干安装脚(23)安装连接。
PCT/CN2016/098491 2016-05-09 2016-09-08 双轴伸外转子电机及应用其的风机 WO2017193513A1 (zh)

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