WO2020029752A1 - 一种轮毂电机驱动装置 - Google Patents

一种轮毂电机驱动装置 Download PDF

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Publication number
WO2020029752A1
WO2020029752A1 PCT/CN2019/095938 CN2019095938W WO2020029752A1 WO 2020029752 A1 WO2020029752 A1 WO 2020029752A1 CN 2019095938 W CN2019095938 W CN 2019095938W WO 2020029752 A1 WO2020029752 A1 WO 2020029752A1
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Prior art keywords
wheel
shaft
motor
wheel motor
sleeve
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PCT/CN2019/095938
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English (en)
French (fr)
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郭成武
姚志刚
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郭成武
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Publication of WO2020029752A1 publication Critical patent/WO2020029752A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the utility model belongs to an electric vehicle driving device, and particularly relates to a wheel hub motor driving device.
  • the purpose of the utility model is to propose a technical solution for a wheel hub motor driving device, to optimize the mounting structure of the wheel hub motor on the wheel shaft, and to optimize the driving performance of the wheel hub motor.
  • a wheel hub motor driving device including a wheel hub motor; the wheel hub motor is provided with a central shaft sleeve, and the wheel hub motor is mounted on a wheel shaft of the vehicle through the center shaft sleeve
  • the stator of the in-wheel motor is fixed on the central sleeve, and the central sleeve is provided with an inner hole communicating with the central sleeve and a wire outlet hole of the stator.
  • the wheel shaft is a stepped shaft, and a shaft shoulder of the step shaft vacates a threading hole of the central sleeve, the wheel shaft is a hollow shaft, and the shaft shoulder of the wheel shaft is provided with a threading hole.
  • the lead wires of the in-wheel motor are led out from the hollow wheel shaft through the wire outlet hole and the threading hole.
  • the inner diameter of the central sleeve is 110 mm.
  • the in-wheel motor is provided with a rotating housing.
  • An inner connecting disk is provided on the wheel shaft located inside the in-wheel motor, and the inner connecting disk is mounted on the wheel shaft through an inner bearing.
  • An outer connection is provided on the wheel shaft outside the in-wheel motor The outer connecting disk is mounted on the wheel shaft through an outer bearing; the inner connecting disk and the outer connecting disk are connected to the shell of the hub motor, and the inner connecting disk and the outer connecting disk rotate with the outer shell of the hub motor. .
  • the wheel shaft is a stepped shaft, and the wheel shaft is provided with a front end shaft having a diameter smaller than the inner diameter of the central shaft sleeve; the outer connecting disk is provided with an outer bearing sleeve, and the outer connecting disk is connected through the outer bearing sleeve A front end shaft of the wheel shaft, the outer bearing sleeve and the outer bearing are radially inserted into an inner hole of the central shaft sleeve.
  • the inner connecting disc is provided with a brake disc.
  • the outer connecting disc is provided with a wheel bolt for mounting a wheel.
  • the in-wheel motor is a permanent magnet synchronous motor.
  • the in-wheel motor includes a housing, a permanent magnet yoke, a front cover, and a rear cover.
  • the stator is provided with windings.
  • the in-wheel motor is a voltage-regulated and frequency-regulated rare-earth permanent magnet synchronous motor.
  • the in-wheel motor has an input voltage of 60 volts to 450 volts and an input frequency of 20 to 110 hertz.
  • the output power of the in-wheel motor is 5 kW to 20 kilowatt. .
  • the beneficial effect of the utility model is that the wheel hub motor provided with a central shaft sleeve can be conveniently installed and dismounted on the wheel axle, which facilitates the maintenance operation of the vehicle, the driving performance of the wheel hub motor is improved, and its output power and torque are improved. And the speed is closer to the driving state of the vehicle, which can improve the driving efficiency.
  • FIG. 1 is a structural diagram of the present invention
  • FIG. 2 is a structural diagram of a wheel hub motor of the present invention
  • FIG. 3 is an exploded view of the hub motor of the present invention.
  • an in-wheel motor driving device includes an in-wheel motor; the in-wheel motor is provided with a center sleeve 10, and the in-wheel motor is mounted on the wheel axle 20 of the vehicle through the center sleeve,
  • the stator 30 of the in-wheel motor is fixed on the central shaft sleeve, and the central shaft sleeve is provided with an inner hole communicating with the central shaft sleeve and a wire outlet hole 11 of the stator.
  • the axle is a stepped shaft, and the shoulder 21 of the stepped shaft is free of the threading hole of the central shaft sleeve, the axle is a hollow shaft, and the axle shoulder of the axle is provided with a threading hole 22.
  • the lead wire 12 of the in-wheel motor is led out from the hollow wheel shaft through the wire outlet hole and the threading hole.
  • the inner diameter D of the central sleeve is 110 mm.
  • the in-wheel motor is provided with a rotating casing 40.
  • An inner connecting disk 50 is provided on the wheel shaft located inside the in-wheel motor.
  • the inner connecting disk is mounted on the wheel shaft through an inner bearing 52.
  • An outer connection is provided on the wheel shaft located outside the in-wheel motor.
  • Disc 60, the outer connecting disc is mounted on the wheel axle through an outer bearing 62; the inner connecting disc and the outer connecting disc are mounted on the wheel axle through a bearing, the inner connecting disc and the outer connecting disc are connected with the hub motor
  • the shell is connected, and the inner connecting disc and the outer connecting disc rotate with the shell of the hub motor.
  • the wheel shaft is a stepped shaft, and the wheel shaft is provided with a front shaft 23 having a diameter smaller than the inner diameter of the central shaft sleeve; the outer connecting disk is provided with an outer bearing sleeve 63, and the outer connecting disk is connected to the outer shaft through the outer bearing sleeve.
  • the front end shaft of the wheel shaft, the outer bearing sleeve and the outer bearing are radially inserted into the inner hole of the central sleeve.
  • the inner connecting disc is provided with a brake disc 51.
  • the outer connecting disc is provided with a wheel bolt 61 for mounting a wheel.
  • the in-wheel motor is a permanent magnet synchronous motor.
  • the in-wheel motor includes a housing 40, a permanent magnet yoke 41, a front end cover 42, and a rear end cover 43, and the stator is provided with a winding 31.
  • the in-wheel motor is a voltage-regulated and frequency-regulated rare-earth permanent magnet synchronous motor.
  • the input voltage of the in-wheel motor is 60 volts to 450 volts, the input frequency is 20 to 110 hertz, and the output power of the in-wheel motor is 5 to 20 kilowatts.
  • a hub motor is a permanent magnet synchronous motor.
  • the hub motor includes a central sleeve 10, a stator 30, a housing 40, a permanent magnet yoke 41, a front cover 42, and a rear end. Cover 43.
  • the stator is provided with a winding 31, and the stator is mounted on a central sleeve.
  • the central shaft sleeve is provided with a wire outlet hole 11, and the threading hole communicates with the inner hole of the central shaft sleeve and the through hole of the outer wall.
  • the central shaft sleeve is provided with a key groove 13 for fixed connection with a vehicle wheel axle.
  • the front end cover is mounted on the central sleeve through a bearing 44, and the rear end cover is mounted on the central sleeve through a bearing 45.
  • Both ends of the housing and the permanent magnet yoke are connected to the front cover and the rear cover, respectively.
  • the housing, the permanent magnet yoke, the front cover and the rear cover rotate together.
  • the in-wheel motor of this embodiment is a voltage-regulated and frequency-regulated rare-earth permanent magnet synchronous motor.
  • the applicable voltage of the in-wheel motor is 60 volts to 450 volts
  • the frequency is 20 Hz to 110 Hz
  • the output power is 5 kW to 20 Kilowatt, which adjusts the output power through voltage and frequency according to the driving needs of the vehicle.
  • the motor uses rare earth permanent magnets and multi-level parallel windings to achieve the above functions.
  • Permanent magnet synchronous motor is mainly composed of rotor, end cover and stator.
  • the biggest feature of a permanent magnet synchronous motor is that its stator structure is very similar to the structure of an ordinary induction motor, mainly due to the unique structure that is different from the rotor and other motors. The difference is the unique structure of the rotor, with high-quality permanent magnet poles placed on the rotor.
  • the permanent magnet synchronous motor is the same as the traditional electric excited synchronous motor. The only difference is that the traditional electric excited synchronous motor generates a magnetic field by passing a current into the exciting winding.
  • the permanent magnet synchronous motor is The magnetic field is established by a permanent magnet.
  • the advantages of permanent magnet synchronous motors include:
  • the permanent-magnet synchronous variable-frequency speed-regulating motor is convenient for directly driving a load, and a gearbox with low reliability is omitted.
  • the power of a permanent magnet motor of the same volume and weight can be increased by about 30%.
  • a hub motor driving device includes a hub motor, and the hub motor is the hub motor according to the first embodiment.
  • the in-wheel motor is provided with a central shaft sleeve 10.
  • the in-wheel motor is mounted on an axle 20 of a vehicle.
  • the axle is mounted on the frame 70.
  • the wheel shaft is a stepped shaft and includes a motor shaft 24 and a front shaft 23.
  • the in-wheel motor is mounted on the axle motor shaft 24 of the vehicle through a central sleeve, and the central sleeve is fixedly connected to the motor shaft through a key.
  • the diameter D1 of the front shaft 23 is smaller than the diameter D of the motor shaft, that is, smaller than the inner diameter D of the central sleeve of the hub motor.
  • the shaft is provided with a shoulder 21, the shaft is a hollow shaft, and the shaft shoulder is provided with a threading hole 22.
  • the shoulder 21 of the stepped shaft is located in the inner hole of the center sleeve, and the threading hole of the center sleeve is vacated (that is, the outlet hole 11 of the hub motor is not closed).
  • the wire 12 of the hub motor is routed from the outlet hole 11 and the outlet hole 22 The hollow axle is led out.
  • the in-wheel motor is provided with a rotating casing 40, and an inner connecting disk 50 is provided on a wheel shaft located inside the in-wheel motor.
  • the inner connecting disk is mounted on the wheel shaft through an inner bearing 52.
  • An outer connecting disk 60 is provided on a wheel shaft located outside the hub motor, and the outer connecting disk is mounted on the wheel shaft through an outer bearing 62.
  • the inner connecting disk and the outer connecting disk are connected to the front cover, the rear cover and the housing of the hub motor through bolts 46, and the inner connecting disk and the outer connecting disk rotate with the outer shell of the hub motor.
  • the outer connecting disk is provided with an outer bearing sleeve 63.
  • the outer connecting disk is connected to the front end shaft of the wheel shaft through the outer bearing sleeve, and the outer bearing sleeve and the outer bearing are radially inserted into the inner hole of the central shaft sleeve. This makes the installation structure of the in-wheel motor more compact in the axial direction.
  • the inner connecting disc is provided with a brake disc 51.
  • the outer land is provided with a wheel bolt 61 for mounting a wheel.
  • the wheel is fixed on the outer connecting plate by a wheel bolt 61 and rotates with the hub motor.
  • This embodiment adopts a hub motor provided with a central sleeve, which can be easily mounted and disassembled on the wheel shaft, which facilitates the maintenance operation of the vehicle.
  • the hub motor uses a voltage-regulated frequency-regulated rare-earth permanent magnet synchronous motor.
  • the motor uses a rare-earth permanent magnet and multi-level parallel windings.
  • the output power can be adjusted by voltage and frequency according to demand.
  • the drive performance of the hub motor is good.
  • the torque and speed are closer to the driving state of the vehicle, which can improve the driving efficiency. Due to the harsh working environment of the hub motor, high temperature and jitter during normal operation, it will also face harsh environments such as wading and driving, which will cause large motor losses and easy damage.
  • the structure of the inner connecting disk and the outer connecting disk is adopted in this embodiment.
  • the inner connecting disk and the outer connecting disk have the function of protecting the hub motor, and the load of the wheel is passed through the inner connecting disk and the outer connecting disk.
  • the bearing is transmitted to the wheel shaft, which avoids bearing the weight of the vehicle body between the stator and the rotor of the in-wheel motor, and prevents the motor from being damaged by the vibration generated by the vehicle. If necessary, you can also add coolant to the motor to prevent the motor from overheating.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

一种轮毂电机驱动装置，包括轮毂电机；轮毂电机设有中心轴套（10），轮毂电机通过中心轴套（10）安装在车辆的轮轴（20）上，轮毂电机的定子（30）固定在中心轴套（10）上，中心轴套（10）设有连通中心轴套（10）的内孔与定子（30）的出线孔（11），轮毂电机是永磁同步电机。采用设有中心轴套（10）的轮毂电机，可方便地在轮轴（20）上进行安装和拆卸，方便了车辆的维护操作，轮毂电机的驱动性能得到了改进，其输出功率、扭矩及转速更接近于车辆的行驶状态，可提高驱动效率。

Description

一种轮毂电机驱动装置 技术领域
本实用新型属于电动汽车驱动装置，尤其涉及一种轮毂电机驱动装置。
背景技术
目前的电动汽车多采用轮毂电机驱动车轮，多数轮毂电机的驱动装置将轮毂电机的定子与轮轴做成一体结构，给轮毂电机的安装和维修带来不便。另外，驱动车轮的轮毂电机转速较高，需要减速器配套，增加了结构的复杂性。
发明内容
本实用新型的目的是提出一种轮毂电机驱动装置的技术方案，优化轮毂电机在轮轴上的安装结构，并优化轮毂电机的驱动性能。
为了实现上述目的，本实用新型的技术方案是：一种轮毂电机驱动装置，包括轮毂电机；所述轮毂电机设有中心轴套，所述轮毂电机通过所述中心轴套安装在车辆的轮轴上，所述轮毂电机的定子固定在所述中心轴套上，所述中心轴套设有连通所述中心轴套的内孔与定子的出线孔。
更进一步，所述轮轴是阶梯轴，所述阶梯轴的轴肩空出所述中心轴套的穿线孔，所述轮轴是空心轴，轮轴的所述轴肩设有穿线孔。
更进一步，所述轮毂电机的导线通过所述出线孔和穿线孔从所述空心的轮轴引出。
更进一步，所述中心轴套的内径为110mm。
更进一步，轮毂电机设有转动的外壳，在位于轮毂电机内侧的轮轴上设有内连接盘，内连接盘通过内轴承安装在所述轮轴上；在位于轮毂电机外侧的轮轴上设有外连接盘，外连接盘通过外轴承安装在所述轮轴上；所述内连接盘和外连接盘与所述轮毂电机的外壳连接，所述内连接盘和外连接盘随所述轮毂电机的外壳转动。
更进一步，所述轮轴是阶梯轴，所述轮轴设有直径小于所述中心轴套内径的前端轴；所述外连接盘设有外轴承套，所述外连接盘通过所述外轴承套连接所述轮轴的前端轴，所述外轴承套和所述外轴承在径向嵌入所述中心轴套的内孔。
更进一步，所述内连接盘设有刹车盘。
更进一步，所述外连接盘设有用于安装车轮的车轮螺栓。
更进一步，所述轮毂电机是永磁同步电机，所述轮毂电机包括外壳、永磁体磁轭、前端盖、后端盖，所述定子设有绕组。
更进一步，所述轮毂电机是调压调频稀土永磁同步电机，述轮毂电机输入电压为60伏～450伏，输入频率为20赫兹～110赫兹，所述轮毂电机的输出功率为5千瓦～20千瓦。。
本实用新型的有益效果是：采用设有中心轴套的轮毂电机，可方便地在轮轴上进行安装和拆卸，方便了车辆的维护操作，轮毂电机的驱动性能得了的改进，其输出功率、扭矩及转速更接近于车辆的行驶状态，可提高驱动效率。
下面结合附图和实施例对本实用新型进行详细描述。
附图说明
图1是本实用新型结构图；
图2是本实用新型轮毂电机结构图；
图3是本实用新型轮毂电机分解图。
具体实施方式
如图1、图2、图3，一种轮毂电机驱动装置，包括轮毂电机；所述轮毂电机设有中心轴套10，所述轮毂电机通过所述中心轴套安装在车辆的轮轴20上，所述轮毂电机的定子30固定在所述中心轴套上，所述中心轴套设有连通所述中心轴套的内孔与定子的出线孔11。
所述轮轴是阶梯轴，所述阶梯轴的轴肩21空出所述中心轴套的穿线孔，所述轮轴是空心轴，轮轴的所述轴肩设有穿线孔22。
所述轮毂电机的导线12通过所述出线孔和穿线孔从所述空心的轮轴引出。
所述中心轴套的内径D为110mm。
轮毂电机设有转动的外壳40，在位于轮毂电机内侧的轮轴上设有内连接盘50，内连接盘通过内轴承52安装在所述轮轴上；在位于轮毂电机外侧的轮轴上设有外连接盘60，外连接盘通过外轴承62安装在所述轮轴上；所述内连接盘和外连接盘通过轴承安装在所述轮轴上，所述内连接盘和外连接盘与所述轮毂电机的外壳连接，所述内连接盘和外连接盘随所述轮毂电机的外壳转动。
所述轮轴是阶梯轴，所述轮轴设有直径小于所述中心轴套内径的前端轴23；所述外连接盘设有外轴承套63，所述外连接盘通过所述外轴承套连接所述轮轴的前端轴，所述外轴承套和所述外轴承在径向嵌入所述中心轴套的内孔。
所述内连接盘设有刹车盘51。
所述外连接盘设有用于安装车轮的车轮螺栓61。
所述轮毂电机是永磁同步电机，所述轮毂电机包括外壳40、永磁体磁轭41、前端盖42、后端盖43，所述定子设有绕组31。
所述轮毂电机是调压调频稀土永磁同步电机，述轮毂电机输入电压为60伏～450伏，输入频率为20赫兹～110赫兹，所述轮毂电机的输出功率为5千瓦～20千瓦。
实施例一：
如图2、图3，一种轮毂电机，本实施例的轮毂电机是永磁同步电机，轮毂电机包括中心轴套10、定子30、外壳40、永磁体磁轭41、前端盖42、后端盖43。定子设有绕组31，定子安装在中心轴套上。
中心轴套设有出线孔11，穿线孔连通中心轴套内孔与外壁的通孔。中心轴套设有用于与车辆轮轴固定连接的键槽13。
前端盖通过轴承44安装在中心轴套上，后端盖通过轴承45安装在中心轴套上。
外壳和永磁体磁轭的两端分别连接前端盖和后端盖，外壳、永磁体磁轭、前端盖和后端盖一同转动。
本实施例的轮毂电机是调压调频稀土永磁同步电机，为适合电动汽车的驱动特性，轮毂电机的适用的电压为60伏～450伏，频率20赫兹～110赫兹，输出功率5千瓦～20千瓦，根据车辆行驶需求通过电压和频率来调节输出功率。电机采用稀土永磁和多级数并绕组实现上述功能。
永磁同步电机主要是由转子、端盖、及定子等各部件组成的。一般来说，永磁同步电机的最大的特点是它的定子结构与普通的感应电机的结构非常相似，主要是区别于转子的独特的结构与其它电机形成了差别，和常用的异步电机的最大不同则是转子的独特的结构，在转子上放有高质量的永磁体磁极。
从基本原理来讲：永磁同步电机与传统电励磁同步电机是一样的，其唯一区别为传统的电励磁同步电机是通过在励磁绕组中通入电流来产生磁场的，而永磁同步电机是通过永磁体来建立磁场的。永磁同步电机优点包括：
效率高、更省电，其效率要高于异步电机20％以上。
功率因数高。其功率因数可以调节，甚至可以设计成功率因数等于1，使电机电流小，电机定子铜耗降低，更节能；
可靠性高。永磁同步变频调速电机便于实现直接驱动负载，省去可靠性不高的减速箱。
体积小，功率密度大。同体积、同重量的永磁电机功率可提高30％左右。
实施例二：
如图1、图2、图3，一种轮毂电机驱动装置，包括轮毂电机，轮毂电机是实施例一所述的轮毂电机。轮毂电机设有中心轴套10。轮毂电机安装在车辆的轮轴20上。
轮轴安装在车架70上。轮轴是阶梯轴，包括电机轴24和前端轴23。轮毂电机通过中心轴套安装在车辆的轮轴电机轴24上，中心轴套通过键与电机轴固定连接。前端轴23的直径D1小于电机轴的直径D，即也小于轮毂电机的中心轴套内径D，轮轴设有轴肩21，轮轴是空心轴，轮轴的轴肩处设有穿线孔22。
阶梯轴的轴肩21位于中心轴套的内孔之内，空出中心轴套的穿线孔(即不封闭轮毂电机的出线孔11)，轮毂电机的导线12通过出线孔11和出线孔22从所述空心的轮轴引出。
轮毂电机设有转动的外壳40，在位于轮毂电机内侧的轮轴上设有内连接盘50，内连接盘通过内轴承52安装在所述轮轴上。在位于轮毂电机外侧的轮轴上设有外连接盘60，外连接盘通过外轴承62安装在所述轮轴上。内连接盘和外连接盘通过螺栓46与轮毂电机的前端盖、后端盖和外壳连接，内连接盘和外连接盘随轮毂电机的外壳转动。
外连接盘设有外轴承套63，外连接盘通过外轴承套连接轮轴的前端轴，外轴承套和外轴承在径向嵌入中心轴套的内孔。这样使轮毂电机的安装结构在轴向更为紧凑。
内连接盘设有刹车盘51。
外连接盘设有用于安装车轮的车轮螺栓61。车轮通过车轮螺栓61固定在外连接盘上，随轮毂电机转动。
本实施例采用设有中心轴套的轮毂电机，可方便地在轮轴上进行安装和拆卸，方便了车辆的维护操作。另一方面轮毂电机采用调压调频稀土永磁同步电机，电机采用稀土永磁和多级数并绕组，可根据需求通过电压和频率来调节输出功率，轮毂电机的驱动性能良好，其输出功率、扭矩及转速更接近于车辆的行驶状态，可提高驱动效率。由于轮毂电机的工作环境恶劣，正常工作时温度高，抖动大，还会面临涉水行驶等恶劣环境，使电机损耗大，容易损坏。为了解决这这些技术难题，本实施例中采用了内连接盘和外连接盘的结构，内连接盘和外连接盘具有保护轮毂电机的作用，将车轮的载荷通过内连接盘和外连接盘的轴承传递到轮轴上，避免了轮毂电机的定子和转子之间承受车体的重量，防止车辆行驶产生的抖动损伤电机。必要时还可以是在电机内加入冷却液，防止电机过热。

Claims (10)

  1. 一种轮毂电机驱动装置，包括轮毂电机；其特征在于，所述轮毂电机设有中心轴套，所述轮毂电机通过所述中心轴套安装在车辆的轮轴上，所述轮毂电机的定子固定在所述中心轴套上，所述中心轴套设有连通所述中心轴套的内孔与定子的出线孔。
  2. 根据权利要求1所述的一种轮毂电机驱动装置，其特征在于，所述轮轴是阶梯轴，所述阶梯轴的轴肩空出所述中心轴套的穿线孔，所述轮轴是空心轴，轮轴的所述轴肩设有穿线孔。
  3. 根据权利要求2所述的一种轮毂电机驱动装置，其特征在于，所述轮毂电机的导线通过所述出线孔和穿线孔从所述空心的轮轴引出。
  4. 根据权利要求1所述的一种轮毂电机驱动装置，其特征在于，所述中心轴套的内径为110mm。
  5. 根据权利要求1所述的一种轮毂电机驱动装置，其特征在于，
    轮毂电机设有转动的外壳，在位于轮毂电机内侧的轮轴上设有内连接盘，内连接盘通过内轴承安装在所述轮轴上；在位于轮毂电机外侧的轮轴上设有外连接盘，外连接盘通过外轴承安装在所述轮轴上；所述内连接盘和外连接盘与所述轮毂电机的外壳连接，所述内连接盘和外连接盘随所述轮毂电机的外壳转动。
  6. 根据权利要求5所述的一种轮毂电机驱动装置，其特征在于，所述轮轴是阶梯轴，所述轮轴设有直径小于所述中心轴套内径的前端轴；所述外连接盘设有外轴承套，所述外连接盘通过所述外轴承套连接所述轮轴的前端轴，所述外轴承套和所述外轴承在径向嵌入所述中心轴套的内孔。
  7. 根据权利要求5所述的一种轮毂电机驱动装置，其特征在于，所述内连接盘设有刹车盘。
  8. 根据权利要求5所述的一种轮毂电机驱动装置，其特征在于，所述外连接盘设有用于安装车轮的车轮螺栓。
  9. 根据权利要求1所述的一种轮毂电机驱动装置，其特征在于，所述轮毂电机是永磁同步电机，所述轮毂电机包括外壳、永磁体磁轭、前端盖、后端盖，所述定子设有绕组。
  10. 根据权利要求9所述的一种轮毂电机驱动装置，其特征在于，所述轮毂电机是调压调频稀土永磁同步电机，述轮毂电机输入电压为60伏～450伏，输入频率为20赫兹～110赫兹，所述轮毂电机的输出功率为5千瓦～20千瓦。
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JP2018001776A (ja) * 2016-06-27 2018-01-11 Ntn株式会社 インホイールモータ駆動装置
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