WO2021120431A1 - 一种导体独立驱动且紧凑结构的高速游标电机 - Google Patents

一种导体独立驱动且紧凑结构的高速游标电机 Download PDF

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WO2021120431A1
WO2021120431A1 PCT/CN2020/079725 CN2020079725W WO2021120431A1 WO 2021120431 A1 WO2021120431 A1 WO 2021120431A1 CN 2020079725 W CN2020079725 W CN 2020079725W WO 2021120431 A1 WO2021120431 A1 WO 2021120431A1
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stator
conductor
rotor
motor
compact structure
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PCT/CN2020/079725
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English (en)
French (fr)
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贾少锋
梁泳涛
梁得亮
刘进军
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西安交通大学
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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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • 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
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings

Definitions

  • the invention belongs to the field of motors, and specifically relates to a high-speed vernier motor with a compact structure that is independently driven by a conductor.
  • high-speed motors have become a research hotspot in the field of motors.
  • high-speed motors do not require transmission mechanisms or speed change devices, and can be directly connected to high-speed loads or prime movers. They have the advantages of high power density, small size, high efficiency, high reliability, and low operating costs.
  • the typical number of pole pairs of a high-speed motor is 1 or 2, which brings an obvious disadvantage, that is, the end of the motor will be very long, which increases the useless volume of the motor.
  • some technicians have proposed special winding structures such as back-wound and toroidal windings. Although the end length of the motor is reduced, half of the coils do not participate in the electromagnetic energy conversion, and the waste is still serious.
  • VRM Vernier Reluctance Motor
  • the purpose of the present invention is to overcome the shortcomings of the traditional high-speed motor topology winding utilization rate is not high, and propose a new high-speed motor topology structure, that is, a high-speed vernier motor independently driven by each slot conductor.
  • a new high-speed motor topology structure that is, a high-speed vernier motor independently driven by each slot conductor.
  • each slot conductor of the rotor is driven independently, it can realize any current waveform drive including direct current and harmonics, thereby increasing the power density of the motor.
  • a high-speed vernier motor with independent conductor drive and compact structure including stator and rotor;
  • the rotor includes a rotor core
  • the stator includes a stator core and a stator conductor
  • the rotor core and the stator core are both salient pole structures, and the grooves between the protrusions of the adjacent stator cores Is provided with a stator conductor;
  • stator conductor extend out of both sides of the stator core, one end of the stator conductor is connected to the drive plate, and the currents of all the stator conductors are individually controlled; the other end of the stator conductor is connected to the shorting plate to form a short circuit.
  • the expression of the current of each phase of the stator conductor is:
  • I ac is the effective value of the AC component
  • I dc is the average value of the DC component
  • w e is the electrical angle frequency
  • ⁇ is the initial phase angle
  • I n is the harmonic current.
  • the shorting board is a ring-shaped structure, or a structure where a spoke-shaped conductor is merged into a ring.
  • stator fundamental magnetic conductor alternating current component generated momentum pole pair number P a satisfy the relationship:
  • N r is the number of rotor modulation teeth
  • P dc is the number of pole pairs of the fundamental magnetomotive force generated by the direct current component of the stator conductor.
  • the drive board is connected to the inverter, and the stator conductors of each phase are directly supplied with power through the drive board and controlled individually.
  • stator conductor is arranged in the middle of the groove between adjacent stator cores.
  • the rotor core has an inner convex structure
  • the stator core has an outer convex structure
  • the stator conductor has a rectangular parallelepiped structure.
  • the groove has a fan-shaped structure.
  • the rotor core and the stator core of the present invention are both salient pole structures, and each stator slot is inserted with a stator conductor, and the stator conductor in each slot of the stator core is a phase, so that
  • the stator conductor of the motor adopts independent control of each phase, the current waveform of each phase is arbitrary, and the principle of magnetic field modulation is used to obtain high torque capacity.
  • Both the rotor core and the stator core are of salient pole structure, which is robust and suitable for high-speed operation.
  • the stator conductor of the motor adopts independent control of each phase, and the phase current waveform is arbitrary, which improves the fault tolerance in the event of a fault.
  • the end of the stator is short-circuited with an end ring, which greatly reduces the end space, further reduces the volume of the system, and improves the power density of the motor. Therefore, the new motor system has the advantages of high torque density, low cost, small size, compact structure, strong fault tolerance and suitable for high-speed operation.
  • the present invention adopts the end ring to short-circuit the end, which greatly reduces the end space, and has the obvious advantages of low cost, high torque density, small volume, compact structure and strong fault tolerance. .
  • Figure 1 is a schematic cross-sectional view of the present invention
  • Figure 2 is a schematic side view of the present invention
  • FIG. 3 is a schematic diagram of the driving board in the present invention.
  • Figure 4 is a schematic diagram of the short circuit board in the present invention.
  • 1-rotor 1-rotor; 2-air gap; 3-stator; 4-stator conductor; 5-stator core; 6-rotor core; 7-shorting plate; 8-drive plate.
  • a layer/element when referred to as being "on" another layer/element, the layer/element may be directly on the other layer/element, or there may be an intermediate layer/element between them. element.
  • the layer/element may be located "under” the other layer/element when the orientation is reversed.
  • a high-speed vernier motor with a compact structure and an independent conductor drive of the present invention includes a stator 3 and a rotor 1. There is an air gap 2 between the rotor 1 and the stator 3, and the rotor 1 includes a rotor core 6.
  • the stator 3 includes a stator core 5 and a stator conductor 4; the rotor core 6 and the stator core 5 are both salient pole structures, and stator conductors 4 are provided in the grooves between adjacent stator cores 5, and each stator Insert a wire into the 3 slot and connect it through the end ring at one end.
  • the stator conductor 4 in each slot of the stator core 5 is one phase, and the other end of the stator conductor 4 is directly connected to the modular drive circuit.
  • the current of each phase is individually controlled, and any current including but not limited to the fundamental wave can be passed as needed. Waveform.
  • the motor is designed to integrate the motor and the drive system, the system is small in size, and the power density is high; independent control of the current in each slot is used to improve the fault tolerance in the event of a fault.
  • the stator 3 adopts a half-squirrel-cage winding structure, half is short-circuited, and the other half is directly connected to the driver, which reduces the defects of the traditional high-speed motor topology that the end is too long and the power density of the motor.
  • the motor core uses the double salient pole structure of the switched reluctance motor for reference, so that the proposed motor inherits the advantages of the switched reluctance motor, such as high reliability, low cost, and convenient heat dissipation.
  • the rotor 1 has a salient pole structure, which is robust and suitable for ultra-high-speed operation.
  • I ac is the effective value of the AC component
  • I dc is the average value of the DC component
  • w e is the electrical angle frequency
  • ⁇ is the initial phase angle
  • I n is the harmonic current. Injecting harmonic currents into the phase currents can improve the torque waveform and reduce vibration and noise levels.
  • stator conductor 4 extend out of the stator core 5, one end of the stator conductor 4 is connected to the drive plate 8, and the other end of the stator conductor 4 is connected to the drive plate 8. Since the current of each slot conductor is zero, it is short-circuited with a conductive end ring similar to an asynchronous motor, and the current is driven by The board 8 enters and flows out from the short circuit board 7 to form a short circuit.
  • the shorting board 7 can be in an annular shape as a whole, or it can be merged into a small circle by a spoke-shaped conductor.
  • Torque generation is similar to that of a vernier motor, that is, the static magnetomotive force generated by the DC component is modulated by the rotor 1 to form a rotating magnetic field.
  • the rotor 1 modulates the number of teeth N r , the number of slots in the stator 3 N s , and the DC component of the current flowing through the stator conductor 4
  • the present invention includes a stator 3 and a rotor 1. There is an air gap 2 between the rotor 1 and the stator 3.
  • the rotor 1 includes a rotor core 6, and the stator 3 includes a stator core 5 and a stator conductor 4;
  • the rotor core 6 and the stator core 5 are both salient pole structures.
  • the stator core 5 is provided with stator conductors 4 in the grooves.
  • the stator conductor 4 in each slot of the stator core 5 is a phase, and the current of each phase is Independent control, can pass in any current waveform including but not limited to the fundamental wave as needed.
  • One of the simpler feasible measures is the DC bias current.
  • I ac is the effective value of the AC component
  • I dc is the average value of the DC component
  • w e is the electrical angle frequency
  • ⁇ is the initial phase angle
  • I n is the harmonic current.
  • Injecting harmonic currents into the phase currents can improve the torque waveform and reduce vibration and noise levels.
  • both ends of the stator conductor 4 extend out of the stator core 5, one end of the stator conductor 4 is connected to the drive plate 8, and the other end is a conductive end ring similar to an asynchronous motor because the current of each slot conductor is zero.
  • the short circuit When the short circuit is performed, the current enters from the drive board 8 and flows out from the short circuit board 7 to form a short circuit.
  • the shorting board 7 can be in an annular shape as a whole, or it can be merged into a small circle by a spoke-shaped conductor.
  • the inverter is used to directly supply power to the conductors of each phase through the drive board 8 and individually controlled.
  • the invention realizes the integration of the motor and the driver from the topological structure.
  • One end of the stator conductor 4 is directly powered by an inverter.
  • the motor stator 3 proposes an innovative structure that adopts independent control of each phase and the current is a DC bias current, which enhances the isolation of magnetism, electricity and heat.
  • the end adopts a short end ring. Connection, greatly reducing the end space, making the motor and the controller highly integrated, further reducing the volume of the system, and increasing the power density of the motor.
  • the motor is based on the principle of magnetic field modulation, which can achieve higher torque density.
  • the rotor 1 is a salient pole structure, which is robust and suitable for ultra-high-speed operation. Therefore, the new motor system has the advantages of high torque density, low cost, small size, compact structure, strong fault tolerance and suitable for high-speed operation.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

本发明公开了一种导体独立驱动且紧凑结构的高速游标电机，包括定子和转子；所述转子与定子间具有气隙，转子包括转子铁芯，定子包括定子铁芯和定子导体；转子铁芯和定子铁芯均为凸极结构，相邻定子铁芯凸起之间的凹槽中设置有定子导体；所述定子导体的两端伸出定子铁芯两侧，定子导体一端连接驱动板，所有的定子导体各相电流单独控制；定子导体另一端连接短接板形成短接回路。定子端部采用端环短接，大幅减小端部空间，进一步减少了系统体积，提高了电机的功率密度。因此新型电机系统具有转矩密度高、成本低、体积小、结构紧凑、容错能力强、适合高速运行的优点。

Description

一种导体独立驱动且紧凑结构的高速游标电机 技术领域
本发明属于电机领域，具体涉及一种导体独立驱动且紧凑结构的高速游标电机。
背景技术
近年来，高速电机成为电机领域研究的热点。与传统电机相比，高速电机无需传动机构或变速装置，可直接与高速负载或原动机相连，具有功率密度高、体积小、效率高、可靠性高、运行成本低的优点。然而，在高速电机的运行中，为了降低电流的基波频率，典型的高速电机极对数为1或2，带来一个明显的缺点，即电机的端部会很长，增加电机的无用体积，限制了系统的功率密度。对此，部分技术人员提出了背绕式和环形绕组等特殊绕组结构，虽然降低了电机的端部长度，但是有一半的线圈并不参与电磁能量转换，浪费依然严重。
同时，以游标电机为代表的磁场调制类电机在国内外电机领域受到较多的研究和关注。游标磁阻电机(VRM)的转子和定子均为凸极结构，结构简单，适合高速运行。游标电机遵循磁场调制原理，具有转矩密度高的特点。因此，开发新拓扑，使得VRM适用于高速运行，兼具转矩密度、功率密度高、体积小、效率高、可靠性高、运行成本低的优点，具有重要意义。
发明内容
本发明的目的在于克服传统高速电机拓扑绕组利用率不高的不足，提出一种新型的高速电机拓扑结构，即一种各槽导体独立驱动的高速游标电机。不同于传统的交流电机，由于转子各槽导体独立驱动，因此可以实现包含直流量及谐波的 任意电流波形驱动，从而提高电机的功率密度。
为了达到上述目的，本发明采用如下技术方案：
一种导体独立驱动且紧凑结构的高速游标电机，包括定子和转子；
所述转子与定子间具有气隙，转子包括转子铁芯，定子包括定子铁芯和定子导体；转子铁芯和定子铁芯均为凸极结构，相邻定子铁芯凸起之间的凹槽中设置有定子导体；
所述定子导体的两端伸出定子铁芯两侧，定子导体一端连接驱动板，所有的定子导体各相电流单独控制；定子导体另一端连接短接板形成短接回路。
优选的，所述定子导体的各相的电流的表达式为：
Figure PCTCN2020079725-appb-000001
其中，I ac为交流分量的有效值，I dc为直流分量平均值，w e为电角频率，θ为初相角，I n为谐波电流。
优选的，所述短接板为圆环状结构，或为通过辐条状的导体汇合到一个圆环的结构。
优选的，所述定子导体电流的交流分量产生的基波磁动势的极对数P a满足关系：
P a＝|N r±P dc|
其中，N r为转子调制齿数，P dc为定子导体所通电流的直流分量产生的基波磁动势的极对数。
优选的，所述驱动板与逆变器连接，通过驱动板直接给各相定子导体供电并单独控制。
优选的，所述定子导体设置在相邻定子铁芯之间的凹槽中部。
优选的，所述转子铁芯为内凸结构，定子铁芯为外凸结构。
优选的，所述定子导体为长方体结构。
优选的，所述凹槽为扇形结构。
与现有技术相比，具有以下优点：
与现有技术相比，本发明的转子铁芯和定子铁芯均为凸极结构，每个定子槽内插入一根定子导体，定子铁芯的每个槽中的定子导体为一相，使电机定子导体采用各相独立控制，各相电流波形任意，利用磁场调制原理获得高转矩能力。转子铁芯和定子铁芯均为凸极结构，鲁棒性强，适合高速运行。电机定子导体采用各相独立控制，相电流波形任意，提高故障时的容错能力。定子端部采用端环短接，大幅减小端部空间，进一步减少了系统体积，提高了电机的功率密度。因此新型电机系统具有转矩密度高、成本低、体积小、结构紧凑、容错能力强、适合高速运行的优点。
进一步的，本发明与现有的高速电机相比，端部采用端环短接，大幅减小端部空间，具有成本低、转矩密度高、体积小、结构紧凑、容错能力强的显著优点。
附图说明
图1为本发明的剖面示意图；
图2为本发明的侧面示意图；
图3为本发明中驱动板示意图；
图4为本发明中短接板示意图。
其中，1-转子；2-气隙；3-定子；4-定子导体；5-定子铁芯；6-转子铁芯；7-短接板；8-驱动板。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，不是全部的实施例，而并非要限制本发明公开的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要的混淆本发明公开的概念。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
在附图中示出了根据本发明公开实施例的各种结构示意图。这些图并非是按比例绘制的，其中为了清楚表达的目的，放大了某些细节，并且可能省略了某些细节。图中所示出的各种区域、层的形状及它们之间的相对大小、位置关系仅是示例性的，实际中可能由于制造公差或技术限制而有所偏差，并且本领域技术人员根据实际所需可以另外设计具有不同形状、大小、相对位置的区域/层。
本发明公开的上下文中，当将一层/元件称作位于另一层/元件“上”时，该层/元件可以直接位于该另一层/元件上，或者它们之间可以存在居中层/元件。另外，如果在一种朝向中一层/元件位于另一层/元件“上”，那么当调转朝向时，该层/元件可以位于该另一层/元件“下”。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元， 而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
下面结合附图对本发明做进一步详细描述：
如图1和图2所示，本发明一种导体独立驱动且紧凑结构的高速游标电机，包括定子3和转子1，转子1与定子3间具有气隙2，转子1包括转子铁芯6，定子3包括定子铁芯5和定子导体4；转子铁芯6和定子铁芯5均为凸极结构，相邻定子铁芯5之间的凹槽中均设置有定子导体4，在每个定子3槽内插入一根导线，并通过一端的端环连接。定子铁芯5的每个槽中的定子导体4为一相，定子导体4的另一端直接连接模块化驱动电路，各相电流单独控制，可根据需要通入包含但不限于基波的任意电流波形。
与此同时，为了达到上述目的，电机设计为电机与驱动系统一体化集成，系统体积小，功率密度高；采用各槽电流独立控制，提高故障时的容错能力。定子3采用半鼠笼绕组结构，一半短接，一半直接与驱动器相连，降低传统高速电机拓扑端部太长，降低电机功率密度的缺陷。
为了达到上述目的，电机铁芯借鉴了开关磁阻电机的双凸极结构，使所提出的电机继承了开关磁阻电机高可靠性、低成本、散热方便等优点。同时转子1为凸极结构，鲁棒性强，适合超高速运行。
各相的电流的表达式为：
Figure PCTCN2020079725-appb-000002
其中，I ac为交流分量的有效值，I dc为直流分量平均值，w e为电角频率，θ为初相角，I n为谐波电流。相电流中注入谐波电流可以改善转矩波形，降低振动和噪声水平。
定子导体4的两端伸出定子铁芯5，定子导体4的一端连接驱动板8，另一端由于各槽导体电流为零，因此用类似于异步电机的导电端环进行短接，电流由驱动板8进入，从短接板7流出形成短接回路。
如图3所示，短接板7整体可呈圆环状，也可以通过辐条状的导体汇合到一个小圆。
转矩产生与游标电机类似，即将直流分量产生的静止磁动势通过转子1调制形成旋转磁场，转子1调制齿数N r、定子3槽数N s、定子导体4所通电流的直流分量产生的基波磁动势的极对数P dc、导体电流的交流分量产生的基波磁动势的极对数P a满足关系：P a＝|N r±P dc|。
实施例
参见图1和图2，本发明包括定子3和转子1，转子1与定子3间具有气隙2，转子1包括转子铁芯6，定子3包括定子铁芯5和定子导体4；
转子铁芯6和定子铁芯5均为凸极结构，定子铁芯5的凹槽中均设置有定子导体4，定子铁芯5的每个槽中的定子导体4为一相，各相电流单独控制，可根据需要通入包含但不限于基波的任意电流波形，其中一种较为简单的可行措施为直流偏置电流。
各相的电流的表达式为：
Figure PCTCN2020079725-appb-000003
其中，I ac为交流分量的有效值，I dc为直流分量平均值，w e为电角频率，θ为初相角，I n为谐波电流。
相电流中注入谐波电流可以改善转矩波形，降低振动和噪声水平。
参见图3和图4，定子导体4的两端伸出定子铁芯5，定子导体4的一端连 接驱动板8，另一端由于各槽导体电流为零，因此用类似于异步电机的导电端环进行短接，电流由驱动板8进入，从短接板7流出形成短接回路。短接板7整体可呈圆环状，也可以通过辐条状的导体汇合到一个小圆。当进行驱动时，用逆变器通过驱动板8直接给各相导体供电并单独控制。
参见图1，转子1调制齿数N r、定子3槽数N s、永磁体极对数P m、定子导体44所通电流的直流分量产生的基波磁动势的极对数P dc、导体电流的交流分量产生的基波磁动势的极对数P a满足关系：P a＝|N r±P dc|。
本发明从拓扑结构上，实现了电机与驱动器集成化。定子导体4的一端用逆变器直接供电，电机定子3提出了采用各相独立控制，且电流为直流偏置电流的创新结构，增强了磁、电和热的隔离，端部采用端环短接，大幅减小端部空间，使得电机与控制器高度集成，进一步减少了系统体积，提高了电机的功率密度。电机基于磁场调制原理，可实现较高的转矩密度。转子1为凸极结构，鲁棒性强，适合超高速运行。因此新型电机系统具有转矩密度高、成本低、体积小、结构紧凑、容错能力强、适合高速运行的优点。
以上内容仅为说明本发明的技术思想，不能以此限定本发明的保护范围，凡是按照本发明提出的技术思想，在技术方案基础上所做的任何改动，均落入本发明权利要求书的保护范围之内。

Claims (9)

  1. 一种导体独立驱动且紧凑结构的高速游标电机，其特征在于，包括定子(3)和转子(1)；
    所述转子(1)与定子(3)间具有气隙(2)，转子(1)包括转子铁芯(6)，定子(3)包括定子铁芯(5)和定子导体(4)；转子铁芯(6)和定子铁芯(5)均为凸极结构，相邻定子铁芯(5)凸起之间的凹槽中设置有定子导体(4)；
    所述定子导体(4)的两端伸出定子铁芯(5)两侧，定子导体(4)一端连接驱动板(8)，所有的定子导体(4)各相电流单独控制；定子导体(4)另一端连接短接板(7)形成短接回路。
  2. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述定子导体(4)的各相的电流的表达式为：
    Figure PCTCN2020079725-appb-100001
    其中，I ac为交流分量的有效值，I dc为直流分量平均值，w e为电角频率，θ为初相角，I n为谐波电流。
  3. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述短接板(7)为圆环状结构，或为通过辐条状的导体汇合到一个圆环的结构。
  4. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述定子导体(4)电流的交流分量产生的基波磁动势的极对数P a满足关系：
    P a＝|N r±P dc|
    其中，N r为转子调制齿数，P dc为定子导体所通电流的直流分量产生的基波磁动势的极对数。
  5. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述驱动板(8)与逆变器连接，通过驱动板(8)直接给各相定子导体(4)供电并单独控制。
  6. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述定子导体(4)设置在相邻定子铁芯(5)之间的凹槽中部。
  7. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述转子铁芯(6)为内凸结构，定子铁芯(5)为外凸结构。
  8. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述定子导体(4)为长方体结构。
  9. 根据权利要求1所述的导体独立驱动且紧凑结构的高速游标电机，其特征在于，所述凹槽为扇形结构。
PCT/CN2020/079725 2019-12-17 2020-03-17 一种导体独立驱动且紧凑结构的高速游标电机 WO2021120431A1 (zh)

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