WO2019033696A1 - 一种Halbach型阵列永磁盘式无铁芯空心轴电机 - Google Patents

一种Halbach型阵列永磁盘式无铁芯空心轴电机 Download PDF

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WO2019033696A1
WO2019033696A1 PCT/CN2018/072539 CN2018072539W WO2019033696A1 WO 2019033696 A1 WO2019033696 A1 WO 2019033696A1 CN 2018072539 W CN2018072539 W CN 2018072539W WO 2019033696 A1 WO2019033696 A1 WO 2019033696A1
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disk
shaft
rotor disk
coil
magnet
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PCT/CN2018/072539
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English (en)
French (fr)
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田佳龙
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田佳龙
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2798—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the stator face a rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator

Definitions

  • the invention relates to a motor, in particular to a Halbach type array permanent disk type iron coreless hollow shaft motor.
  • Disc permanent magnet synchronous motor is a new type of motor developed in recent years.
  • a high magnetic permeability silicon steel sheet is laminated to form a core and a core.
  • the existence often leads to many problems.
  • the quality of the motor is high because of the existence of the iron core.
  • the weight of the iron core accounts for about 60% of the total mass of the motor, and the volume is huge.
  • the existence of the core causes eddy current loss and hysteresis loss. Reducing the efficiency of the motor by more than 20% of the total motor loss:
  • Pulsation reduces the efficiency of the motor in steady state operation. Eventually, it caused problems such as large size, heavy weight, large loss, and large vibration noise.
  • a Halbach type array permanent disk type iron coreless hollow shaft motor comprising a rotor disk, a coil and a shaft, wherein the shaft is provided with a coil one, A bearing 1 and a bearing 2 are symmetrically disposed on both sides of the coil.
  • the outer side of the bearing is connected to the rotor disk.
  • the outer side of the bearing is connected to the rotor disk 2.
  • the rotor disk 1 and the rotor disk 2 are connected to form a closed magnetic field.
  • the rotor disk one, the coil one and the rotor disk two are axially separated;
  • the rotor disk 1 includes a shaft portion 1 and a disk portion.
  • the disk portion has a magnet 1 on the inner side thereof.
  • the rotor disk 2 includes a shaft portion 2 and a disk portion 2, and a magnet 2 is disposed on the inner side of the disk portion.
  • the magnet one, the coil one and the magnet two are axially separated;
  • the permanent magnets 1 and the permanent magnets 2 are respectively composed of a plurality of permanent magnets which are alternately arranged in a Halbach type array.
  • the coils are disposed in the magnetic chamber one.
  • the shaft portion of the rotor disk 1 and the shaft portion of the rotor disk 2 are provided with pulleys, and the disk portion 1 and the outer portion of the disk portion are provided with a blade structure.
  • Halbach type array permanent disk type ironless hollow core motor mounting solution comprising a stator disk, an intermediate disk, a coil and a shaft, and the bearing is provided with bearings 3 and bearings 4 on both sides of the shaft.
  • the radial spacing is correspondingly provided with a coil two and a coil three, between the coil two and the coil three is provided with a magnet four, the top of the magnet is connected with the bottom protruding end of the "T" type intermediate disk, the middle
  • the protruding ends on both sides of the disk are respectively connected with the rotor disk 3 and the rotor disk 4 to form a closed magnetic chamber 2
  • the rotor disk 3 includes a shaft end 3 and a disk end 3
  • the shaft end 3 is connected with the outer side of the bearing.
  • the inner side of the disk end is provided with a magnet 3
  • the rotor disk 4 includes a shaft end 4 and a disk end 4, the shaft end 4 is connected to the outer side of the bearing 4, and the inner side of the disk end is provided with a magnet 5;
  • the permanent magnet 3, the magnet 4 and the magnet 5 are respectively composed of a plurality of permanent magnets which are alternately arranged in a Halbach type array.
  • the magnet three, the coil two and the magnet four are axially spaced apart, and the magnet four, the coil three and the magnet five are axially spaced apart and placed in equal position in the motor to form a double-sided air gap structure.
  • the shaft end 3 of the rotor disk 3 and the shaft end 4 of the rotor disk 4 are provided with a pulley, and the disk end 3 and the disk end are provided with a fan blade structure on the outer side.
  • the present invention has the following advantages:
  • the motor developed by the invention can be made into a coreless motor without using silicon steel sheets, and the weight of the motor can be greatly reduced, the efficiency can be improved, and the vibration and noise are greatly reduced and the structure is compact.
  • the motor has a series of advantages such as no torque fluctuation, light weight and high efficiency, it is suitable for some special applications, especially suitable for wind power, hydropower and wind and solar hybrid systems.
  • the motor developed by the invention can be used as a generator or as a motor.
  • FIG. 1 is a cross-sectional view showing a Halbach type array permanent disk type ironless hollow core motor according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a Halbach type array permanent disk type iron coreless hollow shaft motor according to a second embodiment of the present invention.
  • FIG 3 is a schematic view showing the radial direction magnetic field direction of the Halbach type array permanent disk type ironless hollow shaft motor of the present invention.
  • FIG. 4 is a schematic view showing the axial direction magnetic field direction of the Halbach type array permanent disk type ironless hollow shaft motor of the present invention.
  • a Halbach type array permanent disk type iron coreless hollow shaft motor comprising a rotor disk, a coil and a shaft 8, wherein the shaft 8 is provided with a coil 5, and the coil 5 is symmetric on both sides.
  • a bearing 6 and a bearing 2 are provided. The outer side of the bearing 6 is connected to the rotor disk 1 . The outer side of the bearing 2 and the rotor disk 2 are connected. The rotor disk 1 and the rotor disk 2 are connected to form a a closed magnetic chamber 21, the rotor disk-1, the coil one 5 and the rotor disk 2 are axially separated;
  • the rotor disk 1 includes a shaft portion 1a and a disk portion 1b, and a magnet 3 is disposed inside the disk portion 1b.
  • the rotor disk 2 includes a shaft portion 2a and a disk portion 2b. a magnet 2 is disposed inside the portion 2b, and the magnet 3, the coil 5, and the magnet 2 are axially separated;
  • the permanent magnets -3 and the permanent magnets 2 are respectively composed of a plurality of permanent magnets which are alternately arranged in a Halbach type array.
  • the coils 5 are disposed in the magnetic chamber 21.
  • the shaft portion 1a of the rotor disk 1 and the shaft portion 2a of the rotor disk 2 are provided with pulleys, the disk portion 1b and the disk portion 2 (2b).
  • the outer side is provided with a fan blade structure.
  • a Halbach type array permanent disk type ironless hollow core motor comprising a stator disc, an intermediate disc, a coil and a shaft, wherein: the shaft 15 is provided with bearings 38 and bearings 49 on both sides thereof. A coil two 16 and a coil three 17 are disposed on the shaft 15 in a radial interval, and a magnet four 13 is disposed between the coil two 16 and the coil three 17, and the magnet has a top portion and a "T" type intermediate disk 11 The bottom projecting end is connected, and the projecting ends of the intermediate disk 11 are respectively connected with the rotor disk 3 and the rotor disk 4 to form a closed magnetic chamber 20, and the rotor disk 3 9 includes a shaft end 3a and a disk end three 9b, the shaft end three 9a is connected to the outer side of the bearing three 18, the inner side of the disk end three 9b is provided with a magnet three 12, the rotor disk four 10 includes a shaft end four 10a and a disk end four 10b, The shaft end four 10a is connected to the shaft
  • the permanent magnets three 12, the magnets four 13 and the magnets five 14 are respectively composed of a plurality of permanent magnets which are alternately arranged in a Halbach type array.
  • the magnet three 12, the coil two 16 and the magnet four 13 are axially spaced apart, and the magnet four 13, the coil three 17 and the magnet five 14 are axially separated, and in the motor Placed in the middle to form a double-sided air gap structure.
  • the shaft end 3a of the rotor disk 3 and the shaft end 4a of the rotor disk 4 are provided with pulleys, and the disk end 3b and the disk end 4b are disposed outside.
  • the permanent magnets are alternately arranged in a Halbach type array, and the Halbach type permanent magnet array can obtain a better magnetic field space.
  • the magnetic field strength of the Halbach type permanent magnet array is different, which can reduce the magnetic flux leakage of the motor. Gap magnetic density.
  • the Halbach type array permanent disk type iron coreless hollow shaft motor developed by the invention can be used as a generator or as an electric motor.
  • the magnets 3 and 2 when used as a generator, the magnets 3 and 2 generate a closed magnetic field, and the shaft portion 1a of the rotor disk 1 and the shaft portion 2a of the rotor disk 2 serve as a shaft to drive the rotor disk 1 and the rotor disk 2 2 rotation, that is, the magnetic field rotates, the shaft 8 of the motor is fixed, the coil 5 is connected with the shaft 8 and is fixed, and the magnetic induction line is continuously cut in the rotating magnetic field to generate an electromotive force, and the coil 5 is closed with the outside. Loop, output current.
  • the coil 5 When used as a motor, the coil 5 is connected to the external commutation circuit and generates a magnetic field. When the magnetic field generated by the magnet 3 and the magnet 2 is opposite to the direction, a magnetic repulsive force is generated, which can push the rotor disk 1 and the rotor disk 2 When the rotation occurs, when the coil 5 is parallel and in the same direction as the magnetic field generated by the magnet 3 and the magnet 2, the magnetic repulsion at this time is the smallest, the commutation circuit changes the current in the coil 5, and the magnetic repulsion increases after the commutation. The rotor disk 1 and the rotor disk 2 are continuously rotated, and the rotor disk 1 and the rotor disk 2 are continuously powered by the shaft portion 1a and the shaft portion 2a.
  • shaft portion three 9a of rotor disk three 9 and shaft portion four 10a of rotor disk four 10 act as a shaft to drive the rotor disk
  • the three 9 and the rotor disk four 10 rotate, that is, the magnetic field rotates, the shaft 2 of the motor is fixed, the coil two 16, the coil three 17 and the shaft two 15 are connected, fixed, and the magnetic line is continuously cut in the rotating magnetic field.
  • the electromotive force is generated, and the coils 26 and 36 are formed into a closed loop with the outside to output a current.
  • the coil two 16 and the coil three 17 are connected to the external commutation circuit and generate a magnetic field.
  • the magnet four 13, and the magnet five 14 the rotor disk 3 and 9 can be pushed.
  • the rotor disk 4 rotates.
  • the commutation circuit changes the current in the coil 5, and the magnetic repulsion force increases after the commutation, and continues to push the rotor disk 3 9 and The rotor disk 4 is rotated, and the rotor disk 3 and the rotor disk 4 10 continuously output power through the shaft portion 3a and the shaft portion 10a.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Linear Motors (AREA)

Abstract

一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括定子盘、转子盘（9,10）、永磁体（12,13,14）和轴（15），所述轴（15）上沿径向对称设有定子盘一与定子盘二，所述定子盘一与定子盘二中间设有中间转子盘，所述中间转子盘顶部与外侧转子盘连接，所述外侧转子盘两侧内壁与对应的定子盘之间对称设有至少两个永磁体（12,14），所述永磁体（12,14）一侧分别与外侧转子盘内壁连接，另一侧与对应定子盘沿轴向相隔。该电机重量小、效率高、振动小、噪声低、结构紧凑，适合一些要求比较特殊的应用场合，特别适合用于风力、水力发电和风光互补系统，且该电机既可以当做发电机使用也可以当做电动机使用。

Description

一种Halbach型阵列永磁盘式无铁芯空心轴电机 技术领域
本发明涉及一种电机，具体是指一种Halbach型阵列永磁盘式无铁芯空心轴电机。
背景技术
盘式永磁同步电机是近几年发展起来的一种新型电机，但盘式永磁同步电机中为了减小磁路的磁阻，选用高磁导率的硅钢片叠压制成铁心，铁芯的存在往往会导致很多问题，比如：电机质量因为存在铁心而居高不下，铁心重量约占电机总质量的60％左右，而且体积庞大；铁心的存在会引起涡流损耗和磁滞损耗，这些损耗占电机总损耗的20％以上，降低了电机的效率：另外，对于将电枢绕组嵌放在铁心槽内的有齿槽电机来说，在电机运行时，齿槽效应将使电机的转矩产生脉动，降低了电机稳态运行时的功效。最终导致了体积大、重量大、损耗大、震动噪声大等问题。
发明内容
为解决上述技术问题，本发明提供的技术方案为：一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括转子盘、线圈和轴一，所述轴一上设有线圈一，所述线圈一两侧对称设有轴承一和轴承二，所述轴承一外侧和转子盘一连接，所述轴承二外侧和转子盘二连接，所述转子盘一和转子盘二相连构成一个封闭的磁室一，所述转子盘一、线圈一和转子盘二沿轴向相隔；
所述转子盘一包括轴部一和磁盘部一，所述磁盘部一内侧设有磁铁一，所述转子盘二包括轴部二和磁盘部二，所述磁盘部二内侧设有磁铁二，所述磁铁一、线圈一和磁铁二沿轴向相隔；
所述永磁体一与永磁体二分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
作为改进，所述线圈一设置于磁室一内。
作为改进，所述所述转子盘一的轴部一和转子盘二的轴部二上设有皮带轮，所述磁盘部一和磁盘部二外侧设有扇叶结构。
本发明另一方面提供一种Halbach型阵列永磁盘式无铁芯空心轴电机安装方案，包括定子盘、中间盘、线圈和轴，所述轴两侧设有轴承三与轴承四，所述轴上沿径向间隔对应设有线圈二和线圈三，所述线圈二和线圈三之间设有磁铁四，所述磁铁四顶部与“T”型中间盘的底部伸出端连接，所述中间盘两侧伸出端分别与转子盘三和转子盘四相连构成一个封闭的磁室二，所述转子盘三包括轴端三和磁盘端三，所述轴端三与轴承三外侧连接，所述磁盘端三内侧设有磁铁三，所述转子盘四包括轴端四和磁盘端四，所述轴端四与轴承四外侧连接，所述磁盘端四内侧设有磁铁五；
所述永磁体三、磁铁四和磁铁五分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
作为改进，所述磁铁三、线圈二和磁铁四沿轴向相隔，所述磁铁四、线圈三和磁铁五沿轴向相隔，且 在电机中对等放置，构成双侧气隙结构。
作为改进，所述转子盘三的轴端三和转子盘四的轴端四上设有皮带轮，所述磁盘端三和磁盘端四外侧设有扇叶结构。
采用以上结构后，本发明具有如下优点：
1、本发明研制的电机，不用硅钢片而制成无铁芯电机，不但电机重量可以大幅度下降、效率也可提高，而且振动、噪声大大降低且结构紧凑。
2、由于该电机具有无转矩波动、重量轻、效率高等一系列优点，适合一些要求比较特殊的应用场合，特别适合用于风力、水力发电和风光互补系统。
3、由于转子没有铁芯不存在齿槽效应，因此在微风情况下就可启动，更加提高了该电机的使用效果。
4、本发明研制的电机，既可以当做发电机使用，也可以当做电动机使用。
附图说明
图1是本发明第一实施例提供的Halbach型阵列永磁盘式无铁芯空心轴电机的截面图。
图2是本发明第二实施例提供的Halbach型阵列永磁盘式无铁芯空心轴电机的截面图。
图3是本发明Halbach型阵列永磁盘式无铁芯空心轴电机径向截面磁场方向示意图。
图4是本发明Halbach型阵列永磁盘式无铁芯空心轴电机轴向截面磁场方向示意图。
具体实施方式
结合附图1，一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括转子盘、线圈和轴一8，所述轴一8上设有线圈一5，所述线圈一5两侧对称设有轴承一6和轴承二7，所述轴承一6外侧和转子盘一1连接，所述轴承二7外侧和转子盘二2连接，所述转子盘一1和转子盘二2相连构成一个封闭的磁室一21，所述转子盘一1、线圈一5和转子盘二2沿轴向相隔；
所述转子盘一1包括轴部一1a和磁盘部一1b，所述磁盘部一1b内侧设有磁铁一3，所述转子盘二2包括轴部二2a和磁盘部二2b，所述磁盘部二2b内侧设有磁铁二4，所述磁铁一3、线圈一5和磁铁二4沿轴向相隔；
所述永磁体一3与永磁体二4分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
作为本实施例较佳实施方案的是，所述线圈一5设置于磁室一21内。
作为本实施例较佳实施方案的是，所述转子盘一1的轴部一1a和转子盘二2的轴部二2a上设有皮带轮，所述磁盘部一1b和磁盘部二(2b)外侧设有扇叶结构。
结合图2，一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括定子盘、中间盘、线圈和轴，其特征在于：所述轴15两侧设有轴承三18与轴承四19，所述轴15上沿径向间隔对应设有线圈二16和线圈三17，所述线圈二16和线圈三17之间设有磁铁四13，所述磁铁四顶部与“T”型中间盘11的底部伸出端连接，所述中间盘11两侧伸出端分别与转子盘三9和转子盘四10相连构成一个封闭的磁室二20，所 述转子盘三9包括轴端三9a和磁盘端三9b，所述轴端三9a与轴承三18外侧连接，所述磁盘端三9b内侧设有磁铁三12，所述转子盘四10包括轴端四10a和磁盘端四10b，所述轴端四10a与轴承四19外侧连接，所述磁盘端四10b内侧设有磁铁五14；
所述永磁体三12、磁铁四13和磁铁五14分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
作为本实施例较佳实施方案的是，所述磁铁三12、线圈二16和磁铁四13沿轴向相隔，所述磁铁四13、线圈三17和磁铁五14沿轴向相隔，且在电机中对等放置，构成双侧气隙结构。
作为本实施例较佳实施方案的是，所述转子盘三9的轴端三9a和转子盘四10的轴端四10a上设有皮带轮，所述磁盘端三9b和磁盘端四10b外侧设有扇叶结构。
本发明在具体实施时，永磁体依次交替排列设置成Halbach型阵列，Halbach型永磁体阵列，能够获得较好的磁场空间，Halbach型永磁体阵列两侧磁场强度不同，能减少电机漏磁提高气隙磁密。本发明研制的一种Halbach型阵列永磁盘式无铁芯空心轴电机，既可以当做发电机使用也可以当做电动机使用。
结合图1，当作为发电机使用时，磁铁一3和磁铁二4产生闭合磁场，转子盘1的轴部一1a和转子盘二2的轴部二2a作为轴带动转子盘1和转子盘二2转动，即磁场旋转，电机的轴一8固定不动，线圈一5与轴一8连接，固定不动，在旋转的磁场中不断切割磁感线，产生电动势，线圈一5与外部形成闭合回路，输出电流。
当作为电动机使用时，线圈一5连接外部换向电路并产生磁场，当磁铁一3和磁铁二4产生的磁场与其方向相反时，会产生磁斥力，可推动转子盘一1和转子盘二2发生旋转，当线圈一5与磁铁一3和磁铁二4产生的磁场方向平行且同向时，此时的磁斥力最小，换向电路改变线圈一5中的电流，换向后磁斥力增大，继续推动转子盘一1和转子盘二2发生旋转，转子盘一1和转子盘二2通过轴部一1a和轴部二2a不断输出动力。
结合图2，当作为发电机使用时，磁铁三12、磁铁四13和磁铁五14产生闭合磁场，转子盘三9的轴部三9a和转子盘四10的轴部四10a作为轴带动转子盘三9和转子盘四10转动，即磁场旋转，电机的轴二15固定不动，线圈二16、线圈三17与轴二15连接，固定不动，在旋转的磁场中不断切割磁感线，产生电动势，线圈二16、线圈三17与外部形成闭合回路，输出电流。
当作为电动机使用时，线圈二16、线圈三17连接外部换向电路并产生磁场，当其与磁铁三9、磁铁四13、磁铁五14产生的磁场方向相反时，可推动转子盘三9和转子盘四10发生旋转，当两磁场方向平行且同向时，此时的磁斥力最小，换向电路改变线圈一5中的电流，换向后磁斥力增大，继续推动转子盘三9和转子盘四10发生旋转，转子盘三9和转子盘四10通过轴部三9a和轴部四10a不断输出动力。
以上对本发明及其实施方式进行了描述，这种描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此，本发明的电机可以做成单盘或多盘式，可根据需要做成相应的内转子 外定子式结构或是外转子内定子式结构，转子上可直接安装轮胎、皮带轮或联轴器等进行动力传动；总而言之如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。

Claims (6)

  1. 一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括转子盘、线圈和轴一，其特征在于：所述轴一(8)上设有线圈一(5)，所述线圈一(5)两侧对称设有轴承一(6)和轴承二(7)，所述轴承一(6)外侧和转子盘一(1)连接，所述轴承二(7)外侧和转子盘二(2)连接，所述转子盘一(1)和转子盘二(2)相连构成一个封闭的磁室一(21)，所述转子盘一(1)、线圈一(5)和转子盘二(2)沿轴向相隔；
    所述转子盘一(1)包括轴部一(1a)和磁盘部一(1b)，所述磁盘部一(1b)内侧设有磁铁一(3)，所述转子盘二(2)包括轴部二(2a)和磁盘部二(2b)，所述磁盘部二(2b)内侧设有磁铁二(4)，所述磁铁一(3)、线圈一(5)和磁铁二(4)沿轴向相隔；
    所述永磁体一(3)与永磁体二(4)分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
  2. 根据权利要求1所述的一种Halbach型阵列永磁盘式无铁芯空心轴电机，其特征在于：所述线圈一(5)设置于磁室一(21)内。
  3. 根据权利要求1所述的一种Halbach型阵列永磁盘式无铁芯空心轴电机，其特征在于：所述转子盘一(1)的轴部一(1a)和转子盘二(2)的轴部二(2a)上设有皮带轮，所述磁盘部一(1b)和磁盘部二(2b)外侧设有扇叶结构。
  4. 一种Halbach型阵列永磁盘式无铁芯空心轴电机，包括定子盘、中间盘、线圈和轴，其特征在于：所述轴(15)两侧设有轴承三(18)与轴承四(19)，所述轴(15)上沿径向间隔对应设有线圈二(16)和线圈三(17)，所述线圈二(16)和线圈三(17)之间设有磁铁四(13)，所述磁铁四顶部与“T”型中间盘(11)的底部伸出端连接，所述中间盘(11)两侧伸出端分别与转子盘三(9)和转子盘四(10)相连构成一个封闭的磁室二(20)，所述转子盘三(9)包括轴端三(9a)和磁盘端三(9b)，所述轴端三(9a)与轴承三(18)外侧连接，所述磁盘端三(9b)内侧设有磁铁三(12)，所述转子盘四(10)包括轴端四(10a)和磁盘端四(10b)，所述轴端四(10a)与轴承四(19)外侧连接，所述磁盘端四(10b)内侧设有磁铁五(14)；
    所述永磁体三(12)、磁铁四(13)和磁铁五(14)分别由若干个依次交替排列设置成Halbach型阵列的永磁体构成。
  5. 根据权利要求4所述的一种Halbach型阵列永磁盘式无铁芯空心轴电机，其特征在于：所述磁铁三(12)、线圈二(16)和磁铁四(13)沿轴向相隔，所述磁铁四(13)、线圈三(17)和磁铁五(14)沿轴向相隔，且在电机中对等放置，构成双侧气隙结构。
  6. 根据权利要求4所述的一种Halbach型阵列永磁盘式无铁芯空心轴电机，其特征在于：所述转子盘三(9)的轴端三(9a)和转子盘四(10)的轴端四(10a)上设有皮带轮，所述磁盘端三(9b)和磁盘端四(10b)外侧设有扇叶结构。
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