WO2018039873A1 - Wheel hub for electric bicycle - Google Patents

Wheel hub for electric bicycle Download PDF

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Publication number
WO2018039873A1
WO2018039873A1 PCT/CN2016/097176 CN2016097176W WO2018039873A1 WO 2018039873 A1 WO2018039873 A1 WO 2018039873A1 CN 2016097176 W CN2016097176 W CN 2016097176W WO 2018039873 A1 WO2018039873 A1 WO 2018039873A1
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WO
WIPO (PCT)
Prior art keywords
flywheel
hub
controller
electric bicycle
main shaft
Prior art date
Application number
PCT/CN2016/097176
Other languages
French (fr)
Chinese (zh)
Inventor
唐明喜
陈世伟
Original Assignee
深圳一哥智行科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳一哥智行科技有限公司 filed Critical 深圳一哥智行科技有限公司
Priority to PCT/CN2016/097176 priority Critical patent/WO2018039873A1/en
Priority to CN201680013511.4A priority patent/CN107466279A/en
Publication of WO2018039873A1 publication Critical patent/WO2018039873A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/80—Accessories, e.g. power sources; Arrangements thereof
    • B62M6/90—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel

Definitions

  • the present invention relates to the field of electric bicycles, and more particularly to an electric bicycle hub.
  • the existing electric bicycles have both pedaling and electric power-assisting functions.
  • the traditional electric power-assisting function requires the installation of Hall in the center axle.
  • the sensor detects whether the electric bicycle is in a stepping state or a coasting state, and then the controller controls the output current of the motor to adjust the rotation speed of the motor.
  • the structure is cumbersome, not simple, and is inconvenient to be installed, disassembled and repaired, and is prone to failure.
  • an electric bicycle hub including a main shaft, a hub shell, a flywheel, a motor, a battery and a controller disposed in the hub housing, and an inner wall of the hub shell adjacent to the flywheel
  • an inductive switch the inductive switch and the controller are electrically connected and fixed on the inner wall of the hub shell to rotate around the main shaft, and the inductive head of the inductive switch passes through the inner wall of the hub shell to point to the flywheel, and the inductive switch can detect whether the flywheel is rotating or not.
  • the controller and the battery are electrically connected.
  • the inductive switch is a vortex proximity switch or a Hall gear sensor.
  • the flywheel is mounted on the main shaft through a flywheel seat
  • the flywheel seat comprises a foreign and a flywheel sleeve
  • the foreign and the flywheel sleeve are connected by two or more torsion forces
  • the foreign and the hub The housing is fixedly connected
  • the flywheel sleeve is connected to the main shaft through a bearing, and the torque is gripped with a sensor capable of detecting torque deformation.
  • the torsion claw comprises two or more strip-shaped cylinders, and the surface of the strip-shaped cylinder is provided with a sloped surface, and the angle between the inclined surface and the surface of the strip-shaped cylinder is greater than 15 °; the inclined surface is inclined with respect to an angle between the surfaces of the strip-shaped cylinders, and the sensor is disposed on the inclined surface.
  • the battery is divided into five groups and arranged in a regular pentagonal shape in the hub shell; each battery group comprises four batteries, and the batteries are arranged in two horizontal directions and two longitudinal directions;
  • the string 2 is connected in a way, and the battery specification is 18650.
  • the battery is fixedly mounted in the hub housing by a plastic housing, and the controller is fixedly mounted on the plastic housing.
  • the motor adopts an inner rotor and an outer stator structure, and the outer stator is fixed on the inner wall of the hub shell and can rotate together with the hub shell; the inner rotor is fixed with a sun wheel and a sun wheel which are sleeved on the main shaft.
  • a Hall sensor is mounted on the controller to detect the angular position of the inner rotor.
  • the planet carrier comprises a support ring and a fixed ring, the support ring and the fixed ring are connected by a support arm, the planetary gear strut is fixedly connected with the support ring, and the fixed ring is fixedly connected with the main shaft.
  • the planetary support further includes an auxiliary support ring, the auxiliary support ring and the support ring are respectively disposed on two sides of the fixed ring, the planetary gear support is fixedly connected to the auxiliary support ring and the support ring, respectively, and the planetary gear is located on the auxiliary support Between the ring and the support ring.
  • the invention can realize self-work, does not need to link external components, has simple structure, is convenient to install, is not easy to malfunction, and has low cost.
  • the controller controls the motor to be turned off and on according to the signal transmitted by the inductive switch.
  • the inductive switch senses the rotation of the flywheel relative to the hub shell, sends an electrical signal to the controller, the controller controls the motor to be turned off, the motor does not work; in the stepped state, the flywheel does not rotate relative to the hub shell, The inductive switch has no electric signal, and the controller controls the motor to open and operate to achieve the boost, effectively preventing the risk of the flying car.
  • the electric bicycle hub of the invention has a small overall volume, compact structure and large output torque.
  • the deformation is generated.
  • the torque sensor feeds back the signal to the controller, and the controller transmits the torque value to the control instrument to facilitate the controller to accurately control the shift.
  • the battery is divided into five groups in a pentagon arrangement in the hub shell, which can be rotated together with the hub.
  • Figure 1 is a cross-sectional view showing the overall structure of a preferred embodiment of the present invention.
  • FIG. 2 is a cross-sectional structural view of a flywheel base in a preferred embodiment of the present invention
  • FIG. 3 is a front elevational view showing the structure of a flywheel base in a preferred embodiment of the present invention.
  • Figure 4 is a schematic cross-sectional view of the K-K of Figure 3;
  • Figure 5 is a front elevational view showing the plastic housing of the battery in a preferred embodiment of the present invention.
  • Figure 6 is a front elevational view showing the planetary carrier in a preferred embodiment of the present invention.
  • Figure 7 is a cross-sectional view showing the structure taken along line A-A of Figure 6;
  • an electric bicycle hub includes a main shaft 1, a hub housing 2, a flywheel 3, a motor 9 provided in the hub housing, a battery 4 and a controller 5, and an inner wall of the hub housing 2 adjacent to the flywheel 3.
  • An inductive switch 6 is disposed, and the inductive switch 6 and the controller 5 are electrically connected and fixed on the inner wall of the hub shell 2 to rotate around the main shaft 1.
  • the inductive head of the inductive switch 6 passes through the inner wall of the hub shell 2 and is directed to the flywheel 3, and is sensed.
  • the switch 6 is capable of detecting whether the flywheel 3 is rotating, and the controller 5 and the battery 4 are electrically connected.
  • the inductive switch 6 senses the rotation of the flywheel 3 relative to the hub housing 2, sends an electrical signal to the controller 5, the controller 5 controls the motor 9 to close, the motor 9 does not work; in the stepped state, the flywheel 3 is opposite to the hub The housing 2 does not rotate, the induction switch 6 emits no electric signal, and the controller 5 controls the motor 9 to open and operate to realize the assist, effectively preventing the risk of the flying vehicle.
  • the inductive switch 6 is a vortex proximity switch or a Hall gear sensor.
  • the flywheel 3 is mounted on the main shaft 1 via a flywheel base 7, the flywheel mount 7 includes a foreign 71 and a flywheel sleeve 72, and two or more torques are passed between the foreign 71 and the flywheel sleeve 72.
  • the 73 is connected, the foreign 71 is fixedly connected to the hub shell 2, the flywheel sleeve 72 is connected to the main shaft 1 through a bearing, and the torque grip 73 is provided with a sensor 8 for detecting torque deformation.
  • the torsion claw 73 includes two or more strip-shaped cylinders, and the surface of the strip-shaped cylinder is provided with a sloped surface 731, and the angle between the sloped surface 731 and the surface of the strip-shaped cylinder is greater than 15°;
  • the angle 731 is inclined with respect to the angle between the surfaces of the strip cylinders, and the sensor 8 is disposed on the slope 731.
  • the battery 4 is divided into 5 groups and arranged in a regular pentagonal shape in the hub shell; each battery 4 includes 4 batteries 41, and the battery core 41 is arranged in two horizontal directions and two longitudinal directions; The cells 41 are connected in a series of 10 strings, and the cell size is 18650.
  • the battery 4 is fixedly mounted in the hub housing 2 through the plastic housing 10, and the controller 5 is fixedly mounted on the plastic housing 10.
  • the motor 9 adopts an inner rotor 11 and an outer stator 12 structure.
  • the outer stator 12 is fixed on the inner wall of the hub shell 2 and can rotate together with the hub shell 2; the inner rotor 11 is fixed on the inner rotor 11
  • the sun gear 13 is fitted over the main shaft 1, and the sun gear 13 is meshed with a planetary gear 14 that meshes with a hub inner ring gear 21 fixed to the hub housing 2, and the planetary gear 14 is mounted on the planetary gear strut 15 by bearings.
  • the planet gear strut 15 is fixed to the planet carrier 16, the planet carrier 16 is fixed to the main shaft 1, and the inner rotor 11 is mounted on the main shaft by bearings.
  • the overall size of the structure is small, the structure is compact, the output torque is large, the working efficiency is high, and the working mode is adapted to transmission control requirements such as large speed ratio deceleration, automatic adjustment differential speed and speed increase regulation.
  • a Hall sensor is mounted on the controller 5, and the angular position of the inner rotor 11 can be detected.
  • the planetary carrier 16 includes a support ring 161 and a fixed ring 162.
  • the support ring 161 and the fixed ring 162 are connected by a support arm 163.
  • the planetary gear strut 15 is fixedly connected with the support ring 161, and the fixed ring 162 is fixedly connected with the main shaft 1.
  • the planetary carrier 16 further includes an auxiliary support ring 164.
  • the auxiliary support ring 164 and the support ring 161 are disposed on two sides of the fixed ring 162.
  • the planetary gear support 15 is fixedly coupled to the auxiliary support ring 164 and the support ring 161, respectively. Located between the auxiliary support ring 164 and the support ring 161.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Disclosed is a wheel hub for an electric bicycle, the wheel hub comprising a main shaft, a wheel hub housing, and a flywheel, and an electric motor, a battery and a controller arranged inside the wheel hub housing, wherein an inner wall of the wheel hub housing adjacent to the flywheel is provided with a sensing switch, the sensing switch and the controller are electrically connected to each other and are fixed on the inner wall of the wheel hub housing to rotate around the main shaft, a sensing head of the sensing switch passes through the inner wall of the wheel hub housing to point to the flywheel, the sensing switch can detect whether the flywheel rotates, and the controller is electrically connected to the battery. The present invention has a simple structure. According to a signal transmitted by the sensing switch, the controller controls the electric motor to turn same off and on: in a gliding state, the sensing switch senses that the flywheel rotates relative to the wheel hub housing and sends an electrical signal to the controller, then the controller controls the electric motor to turn off same, so that the electric motor is not in operation; and in a pedalling state, the flywheel does not rotate relative to the wheel hub housing, the sensing switch does not send the electrical signal, the controller controls the electric motor to turn on same to operate, so as to realise power assisting, and the risk of a rapid increase in rotation speed is effectively prevented.

Description

一种电动自行车轮毂Electric bicycle wheel 技术领域Technical field
本发明涉及电动自行车领域，尤其涉及一种电动自行车轮毂。The present invention relates to the field of electric bicycles, and more particularly to an electric bicycle hub.
背景技术Background technique
随着人们环保意识的的增强，具有高效节能的电动自行车越来越受到人们的青睐，现有的电动自行车兼具踩踏骑行及电动助力功能，传统的电动助力功能需要在中轴安装霍尔传感器，以检测电动自行车是踩踏状态还是滑行状态，进而由控制器控制电机的输出电流，调整电机的转速，此种结构繁琐，不简洁，不方便安装拆卸维修，容易出故障。With the enhancement of people's environmental awareness, electric bicycles with high efficiency and energy saving are more and more popular. The existing electric bicycles have both pedaling and electric power-assisting functions. The traditional electric power-assisting function requires the installation of Hall in the center axle. The sensor detects whether the electric bicycle is in a stepping state or a coasting state, and then the controller controls the output current of the motor to adjust the rotation speed of the motor. The structure is cumbersome, not simple, and is inconvenient to be installed, disassembled and repaired, and is prone to failure.
技术问题technical problem
本发明的目的在于为克服现有技术的缺陷，而提供一种电动自行车轮毂。It is an object of the present invention to provide an electric bicycle hub that overcomes the deficiencies of the prior art.
问题的解决方案Problem solution
技术解决方案Technical solution
为实现上述目的，本发明采用以下技术方案：一种电动自行车轮毂，包括主轴、轮毂壳体、飞轮、设于轮毂壳体内的电机、电池和控制器，与飞轮临近的轮毂壳体内壁上设有一感应开关，所述感应开关和控制器电连接并固定在轮毂壳体的内壁上围着主轴转动，感应开关的感应头穿过轮毂壳体内壁指向飞轮，感应开关能够检测到飞轮是否转动，所述控制器和电池电连接。In order to achieve the above object, the present invention adopts the following technical solution: an electric bicycle hub including a main shaft, a hub shell, a flywheel, a motor, a battery and a controller disposed in the hub housing, and an inner wall of the hub shell adjacent to the flywheel There is an inductive switch, the inductive switch and the controller are electrically connected and fixed on the inner wall of the hub shell to rotate around the main shaft, and the inductive head of the inductive switch passes through the inner wall of the hub shell to point to the flywheel, and the inductive switch can detect whether the flywheel is rotating or not. The controller and the battery are electrically connected.
优选地，所述感应开关为涡流式接近开关或者霍尔齿轮传感器。Preferably, the inductive switch is a vortex proximity switch or a Hall gear sensor.
优选地，所述飞轮通过飞轮座安设于主轴上，所述飞轮座包括外国和飞轮套，所述外国和飞轮套之间通过两个或两个以上的扭力抓连接，所述外国与轮毂壳体固定连接，所述飞轮套通过轴承与主轴连接，所述扭力抓上安设有可以检测扭力变形的传感器。Preferably, the flywheel is mounted on the main shaft through a flywheel seat, the flywheel seat comprises a foreign and a flywheel sleeve, and the foreign and the flywheel sleeve are connected by two or more torsion forces, the foreign and the hub The housing is fixedly connected, and the flywheel sleeve is connected to the main shaft through a bearing, and the torque is gripped with a sensor capable of detecting torque deformation.
优选地，所述扭力爪包括两个或两个以上的条形柱体，所述条形柱体的表面上设斜面，所述斜面相对于条形柱体的表面之间的夹角大于15°；所述斜面相对于条形柱体的表面之间的夹角倾斜方向一致，所述传感器设于所述斜面上。 Preferably, the torsion claw comprises two or more strip-shaped cylinders, and the surface of the strip-shaped cylinder is provided with a sloped surface, and the angle between the inclined surface and the surface of the strip-shaped cylinder is greater than 15 °; the inclined surface is inclined with respect to an angle between the surfaces of the strip-shaped cylinders, and the sensor is disposed on the inclined surface.
优选地，所述电池分5组，呈正五边形均匀排列在轮毂壳体内；每组电池包括4个电芯，所述电芯按照2个横向、2个纵向排列；所述电芯按照10串2并的方式连接，电芯规格为18650。Preferably, the battery is divided into five groups and arranged in a regular pentagonal shape in the hub shell; each battery group comprises four batteries, and the batteries are arranged in two horizontal directions and two longitudinal directions; The string 2 is connected in a way, and the battery specification is 18650.
优选地，所述电池通过塑胶外壳固定安装在轮毂壳体内，所述控制器固定安装在塑胶外壳上。Preferably, the battery is fixedly mounted in the hub housing by a plastic housing, and the controller is fixedly mounted on the plastic housing.
优选地，所述电机采用内转子、外定子结构，所述外定子固定在轮毂壳体内壁上并可随轮毂外壳一同旋转；所述内转子上固定有套在主轴上的太阳轮，太阳轮啮合有行星齿轮，所述行星齿轮与固定在轮毂壳体上的轮毂内齿圈啮合，行星齿轮通过轴承安装在行星齿轮支柱上，所述行星齿轮支柱固定在行星支架上，行星支架固定在主轴上，所述内转子通过轴承安装在主轴上。Preferably, the motor adopts an inner rotor and an outer stator structure, and the outer stator is fixed on the inner wall of the hub shell and can rotate together with the hub shell; the inner rotor is fixed with a sun wheel and a sun wheel which are sleeved on the main shaft. Engaging a planetary gear that meshes with a hub ring gear fixed to the hub housing, the planetary gear being mounted on the planet gear strut by a bearing fixed to the planet carrier, the planet carrier being fixed to the spindle Upper, the inner rotor is mounted on the main shaft through a bearing.
优选地，所述控制器上安装有霍尔传感器，能够检测内转子的角度位置。Preferably, a Hall sensor is mounted on the controller to detect the angular position of the inner rotor.
优选地，所述行星支架包括支撑圈和固定圈，所述支撑圈和固定圈由支撑臂连接，所述行星齿轮支柱与支撑圈固定连接，所述固定圈与主轴固定连接。Preferably, the planet carrier comprises a support ring and a fixed ring, the support ring and the fixed ring are connected by a support arm, the planetary gear strut is fixedly connected with the support ring, and the fixed ring is fixedly connected with the main shaft.
优选地，所述行星支架还包括辅助支撑圈，所述辅助支撑圈和支撑圈分设于固定圈的两侧，所述行星齿轮支柱分别与辅助支撑圈和支撑圈固定连接，行星齿轮位于辅助支撑圈和支撑圈之间。Preferably, the planetary support further includes an auxiliary support ring, the auxiliary support ring and the support ring are respectively disposed on two sides of the fixed ring, the planetary gear support is fixedly connected to the auxiliary support ring and the support ring, respectively, and the planetary gear is located on the auxiliary support Between the ring and the support ring.
发明的有益效果Advantageous effects of the invention
有益效果Beneficial effect
本发明与现有技术相比的有益效果是：The beneficial effects of the present invention compared to the prior art are:
1)本发明的能够实现自工作，不需要链接外部部件，结构简单，安装方便，不容易出故障，成本低。1) The invention can realize self-work, does not need to link external components, has simple structure, is convenient to install, is not easy to malfunction, and has low cost.
2)本发明根据感应开关所传送的信号，控制器控制电机关闭和打2) According to the invention, the controller controls the motor to be turned off and on according to the signal transmitted by the inductive switch.
开：在滑行状态，感应开关感应到飞轮相对于轮毂壳体的转动，发送电信号给控制器，控制器控制电机关闭，电机不工作；在踩踏状态，飞轮相对于轮毂壳体的不转动，感应开关无电信号发出，控制器控制电机打开运转，实现助力，有效的防止了飞车的风险。On: in the sliding state, the inductive switch senses the rotation of the flywheel relative to the hub shell, sends an electrical signal to the controller, the controller controls the motor to be turned off, the motor does not work; in the stepped state, the flywheel does not rotate relative to the hub shell, The inductive switch has no electric signal, and the controller controls the motor to open and operate to achieve the boost, effectively preventing the risk of the flying car.
3)本发明电动自行车轮毂整体体积较小，结构紧凑、输出扭矩大、3) The electric bicycle hub of the invention has a small overall volume, compact structure and large output torque.
工作效率高，工作方式适应诸如大速比减速、自动调整差速及增调速等传输控 制要求。High work efficiency, working mode adapts to transmission control such as large speed ratio deceleration, automatic adjustment of differential speed and increased speed regulation System requirements.
4)消费者在骑行过程中，骑行者在踩踏驱动轮毂壳体时扭力爪会产4) During the riding process, the rider will produce the torque claw when stepping on the drive hub housing.
生变形，当扭力爪产生变形时扭力传感器将信号反馈给控制器，控制器再将扭矩值传输到控制仪表上，方便控制器精准的控制变速。The deformation is generated. When the torque claw is deformed, the torque sensor feeds back the signal to the controller, and the controller transmits the torque value to the control instrument to facilitate the controller to accurately control the shift.
5)电池分五组在轮毂壳体内成五边形排列上，跟着轮毂一起转动可5) The battery is divided into five groups in a pentagon arrangement in the hub shell, which can be rotated together with the hub.
以形成良好的动平衡。To form a good dynamic balance.
对附图的简要说明Brief description of the drawing
附图说明DRAWINGS
图1为本发明优选实施例的整体结构剖视示意图；Figure 1 is a cross-sectional view showing the overall structure of a preferred embodiment of the present invention;
图2为本发明优选实施例中飞轮座的剖结构示意图；2 is a cross-sectional structural view of a flywheel base in a preferred embodiment of the present invention;
图3为本发明优选实施例中飞轮座的正视结构示意图；3 is a front elevational view showing the structure of a flywheel base in a preferred embodiment of the present invention;
图4为图3的K-K剖视结构示意图；Figure 4 is a schematic cross-sectional view of the K-K of Figure 3;
图5为本发明优选实施例中安放电池的塑胶外壳的正视结构示意图；Figure 5 is a front elevational view showing the plastic housing of the battery in a preferred embodiment of the present invention;
图6为本发明优选实施例中行星支架的正视结构示意图；Figure 6 is a front elevational view showing the planetary carrier in a preferred embodiment of the present invention;
图7为图6的A-A剖视结构示意图。Figure 7 is a cross-sectional view showing the structure taken along line A-A of Figure 6;
实施该发明的最佳实施例BEST MODE FOR CARRYING OUT THE INVENTION
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
为了更充分理解本发明的技术内容，下面结合具体实施例对本发明的技术方案进一步介绍和说明。In order to more fully understand the technical content of the present invention, the technical solutions of the present invention will be further described and illustrated in conjunction with the specific embodiments.
如图1所示，一种电动自行车轮毂，包括主轴1、轮毂壳体2、飞轮3、设于轮毂壳体内的电机9、电池4和控制器5，与飞轮3临近的轮毂壳体2内壁上设有一感应开关6，感应开关6和控制器5电连接并固定在轮毂壳体2的内壁上围着主轴1转动，感应开关6的感应头穿过轮毂壳体2内壁指向飞轮3，感应开关6能够检测到飞轮3是否转动，控制器5和电池4电连接。在滑行状态，感应开关6感应到飞轮3相对于轮毂壳体2的转动，发送电信号给控制器5，控制器5控制电机9关闭，电机9不工作；在踩踏状态，飞轮3相对于轮毂壳体2的不转动，感应开关6无电信号发出，控制器5控制电机9打开运转，实现助力，有效的防止了飞车的风险。As shown in FIG. 1, an electric bicycle hub includes a main shaft 1, a hub housing 2, a flywheel 3, a motor 9 provided in the hub housing, a battery 4 and a controller 5, and an inner wall of the hub housing 2 adjacent to the flywheel 3. An inductive switch 6 is disposed, and the inductive switch 6 and the controller 5 are electrically connected and fixed on the inner wall of the hub shell 2 to rotate around the main shaft 1. The inductive head of the inductive switch 6 passes through the inner wall of the hub shell 2 and is directed to the flywheel 3, and is sensed. The switch 6 is capable of detecting whether the flywheel 3 is rotating, and the controller 5 and the battery 4 are electrically connected. In the sliding state, the inductive switch 6 senses the rotation of the flywheel 3 relative to the hub housing 2, sends an electrical signal to the controller 5, the controller 5 controls the motor 9 to close, the motor 9 does not work; in the stepped state, the flywheel 3 is opposite to the hub The housing 2 does not rotate, the induction switch 6 emits no electric signal, and the controller 5 controls the motor 9 to open and operate to realize the assist, effectively preventing the risk of the flying vehicle.
在上述方案中，感应开关6为涡流式接近开关或者霍尔齿轮传感器。 In the above solution, the inductive switch 6 is a vortex proximity switch or a Hall gear sensor.
如图1至图4所示，飞轮3通过飞轮座7安设于主轴1上，飞轮座7包括外国71和飞轮套72，外国71和飞轮套72之间通过两个或两个以上的扭力抓73连接，外国71与轮毂壳体2固定连接，飞轮套72通过轴承与主轴1连接，扭力抓73上安设有可以检测扭力变形的传感器8。As shown in FIGS. 1 to 4, the flywheel 3 is mounted on the main shaft 1 via a flywheel base 7, the flywheel mount 7 includes a foreign 71 and a flywheel sleeve 72, and two or more torques are passed between the foreign 71 and the flywheel sleeve 72. The 73 is connected, the foreign 71 is fixedly connected to the hub shell 2, the flywheel sleeve 72 is connected to the main shaft 1 through a bearing, and the torque grip 73 is provided with a sensor 8 for detecting torque deformation.
具体的，扭力爪73包括两个或两个以上的条形柱体，条形柱体的表面上设斜面731，斜面731相对于条形柱体的表面之间的夹角大于15°；斜面731相对于条形柱体的表面之间的夹角倾斜方向一致，传感器8设于斜面731上。控制器13接收到传感器8时，电机9才开始工作，传感器8和感应开关6实现双重控制。Specifically, the torsion claw 73 includes two or more strip-shaped cylinders, and the surface of the strip-shaped cylinder is provided with a sloped surface 731, and the angle between the sloped surface 731 and the surface of the strip-shaped cylinder is greater than 15°; The angle 731 is inclined with respect to the angle between the surfaces of the strip cylinders, and the sensor 8 is disposed on the slope 731. When the controller 13 receives the sensor 8, the motor 9 starts to work, and the sensor 8 and the inductive switch 6 achieve dual control.
如图1、图5所示，电池4分5组，呈正五边形均匀排列在轮毂壳体内；每组电池4包括4个电芯41，电芯41按照2个横向、2个纵向排列；电芯41按照10串2并的方式连接，电芯规格为18650。As shown in FIG. 1 and FIG. 5, the battery 4 is divided into 5 groups and arranged in a regular pentagonal shape in the hub shell; each battery 4 includes 4 batteries 41, and the battery core 41 is arranged in two horizontal directions and two longitudinal directions; The cells 41 are connected in a series of 10 strings, and the cell size is 18650.
具体的，电池4通过塑胶外壳10固定安装在轮毂壳体2内，控制器5固定安装在塑胶外壳10上。Specifically, the battery 4 is fixedly mounted in the hub housing 2 through the plastic housing 10, and the controller 5 is fixedly mounted on the plastic housing 10.
如图1、图6和图7所示，电机9采用内转子11、外定子12结构，外定子12固定在轮毂壳体2内壁上并可随轮毂外壳2一同旋转；内转子11上固定有套在主轴1上的太阳轮13，太阳轮13啮合有行星齿轮14，行星齿轮14与固定在轮毂壳体2上的轮毂内齿圈21啮合，行星齿轮14通过轴承安装在行星齿轮支柱15上，行星齿轮支柱15固定在行星支架16上，行星支架16固定在主轴1上，内转子11通过轴承安装在主轴上。此种结构整体体积较小，结构紧凑、输出扭矩大、工作效率高，工作方式适应诸如大速比减速、自动调整差速及增调速等传输控制要求As shown in FIG. 1 , FIG. 6 and FIG. 7 , the motor 9 adopts an inner rotor 11 and an outer stator 12 structure. The outer stator 12 is fixed on the inner wall of the hub shell 2 and can rotate together with the hub shell 2; the inner rotor 11 is fixed on the inner rotor 11 The sun gear 13 is fitted over the main shaft 1, and the sun gear 13 is meshed with a planetary gear 14 that meshes with a hub inner ring gear 21 fixed to the hub housing 2, and the planetary gear 14 is mounted on the planetary gear strut 15 by bearings. The planet gear strut 15 is fixed to the planet carrier 16, the planet carrier 16 is fixed to the main shaft 1, and the inner rotor 11 is mounted on the main shaft by bearings. The overall size of the structure is small, the structure is compact, the output torque is large, the working efficiency is high, and the working mode is adapted to transmission control requirements such as large speed ratio deceleration, automatic adjustment differential speed and speed increase regulation.
具体的，控制器5上安装有霍尔传感器，能够检测内转子11的角度位置。Specifically, a Hall sensor is mounted on the controller 5, and the angular position of the inner rotor 11 can be detected.
具体的，行星支架16包括支撑圈161和固定圈162，支撑圈161和固定圈162由支撑臂163连接，行星齿轮支柱15与支撑圈161固定连接，固定圈162与主轴1固定连接。Specifically, the planetary carrier 16 includes a support ring 161 and a fixed ring 162. The support ring 161 and the fixed ring 162 are connected by a support arm 163. The planetary gear strut 15 is fixedly connected with the support ring 161, and the fixed ring 162 is fixedly connected with the main shaft 1.
具体的，行星支架16还包括辅助支撑圈164，辅助支撑圈164和支撑圈161分设于固定圈162的两侧，行星齿轮支柱15分别与辅助支撑圈164和支撑圈161固定连接，行星齿轮14位于辅助支撑圈164和支撑圈161之间。Specifically, the planetary carrier 16 further includes an auxiliary support ring 164. The auxiliary support ring 164 and the support ring 161 are disposed on two sides of the fixed ring 162. The planetary gear support 15 is fixedly coupled to the auxiliary support ring 164 and the support ring 161, respectively. Located between the auxiliary support ring 164 and the support ring 161.
以上所述仅以实施例来进一步说明本发明的技术内容，以便于读者更容易理解 ，但不代表本发明的实施方式仅限于此，其中各部件的局部结构、连接方式可以根据实际情况有所调整，任何依本发明所做的技术延伸或再创造，均受本发明的保护。 The above description of the technical content of the present invention will be further described by way of example only, so that the reader can understand more easily. However, the embodiments of the present invention are not limited thereto, and the partial structure and connection manner of each component may be adjusted according to actual conditions, and any technology extending or re-creating according to the present invention is protected by the present invention.

Claims (10)

  1. 一种电动自行车轮毂，包括主轴、轮毂壳体、飞轮、设于轮毂壳体内的电机、电池和控制器，其特征在于，与飞轮临近的轮毂壳体内壁上设有一感应开关，所述感应开关和控制器电连接并固定在轮毂壳体的内壁上围着主轴转动，感应开关的感应头穿过轮毂壳体内壁指向飞轮，感应开关能够检测到飞轮是否转动，所述控制器和电池电连接。An electric bicycle hub includes a main shaft, a hub housing, a flywheel, a motor disposed in the hub housing, a battery, and a controller, wherein an inductive switch is disposed on an inner wall of the hub housing adjacent to the flywheel, the inductive switch The controller is electrically connected and fixed to the inner wall of the hub shell and rotates around the main shaft. The induction head of the induction switch passes through the inner wall of the hub shell and is directed to the flywheel. The inductive switch can detect whether the flywheel is rotating. The controller and the battery are electrically connected. .
  2. 根据权利要求1所述电动自行车轮毂，其特征在于，所述感应开关为涡流式接近开关或者霍尔齿轮传感器。The electric bicycle hub according to claim 1, wherein said inductive switch is a vortex proximity switch or a Hall gear sensor.
  3. 根据权利要求1或2任一所述电动自行车轮毂，其特征在于，所述飞轮通过飞轮座安设于主轴上，所述飞轮座包括外国和飞轮套，所述外国和飞轮套之间通过两个或两个以上的扭力抓连接，所述外国与轮毂壳体固定连接，所述飞轮套通过轴承与主轴连接，所述扭力抓上安设有可以检测扭力变形的传感器。The electric bicycle hub according to any one of claims 1 or 2, wherein the flywheel is mounted on the main shaft via a flywheel seat, the flywheel base includes a foreign and a flywheel sleeve, and the foreign and flywheel sleeves pass between two One or more torques are used for the connection, the foreign country is fixedly connected with the hub shell, and the flywheel sleeve is connected to the main shaft through a bearing, and the torque grip is provided with a sensor capable of detecting the torsional deformation.
  4. 根据权利要求3所述电动自行车轮毂，其特征在于，所述扭力爪包括两个或两个以上的条形柱体，所述条形柱体的表面上设斜面，所述斜面相对于条形柱体的表面之间的夹角大于15°；所述斜面相对于条形柱体的表面之间的夹角倾斜方向一致，所述传感器设于所述斜面上。The electric bicycle hub according to claim 3, wherein said torsion claw comprises two or more strip-shaped cylinders, and said strip-shaped cylinder has a slope on a surface thereof, said slope being opposite to a strip The angle between the surfaces of the cylinders is greater than 15°; the inclined surfaces are inclined with respect to the angle between the surfaces of the strip cylinders, and the sensor is disposed on the inclined surface.
  5. 根据权利要求1或2任一所述电动自行车轮毂，其特征在于，所述电池分5组，呈正五边形均匀排列在轮毂壳体内；每组电池包括4个电芯，所述电芯按照2个横向、2个纵向排列；所述电芯按照10串2并的方式连接，电芯规格为18650。The electric bicycle hub according to any one of claims 1 to 2, wherein the battery is divided into five groups and arranged in a regular pentagonal shape in the hub casing; each battery group comprises four batteries, and the battery core is 2 horizontal and 2 longitudinally arranged; the cells are connected in a series of 10 strings and 2, and the cell size is 18650.
  6. 根据权利要求5所述电动自行车轮毂，其特征在于，所述电池通过塑胶外壳固定安装在轮毂壳体内，所述控制器固定安装在塑胶外壳上。The electric bicycle hub according to claim 5, wherein said battery is fixedly mounted in the hub casing by a plastic casing, and said controller is fixedly mounted on the plastic casing.
  7. 根据权利要求1或2任一所述电动自行车轮毂，其特征在于，所述电机采用内转子、外定子结构，所述外定子固定在轮毂壳体内壁 上并可随轮毂外壳一同旋转；所述内转子上固定有套在主轴上的太阳轮，太阳轮啮合有行星齿轮，所述行星齿轮与固定在轮毂壳体上的轮毂内齿圈啮合，行星齿轮通过轴承安装在行星齿轮支柱上，所述行星齿轮支柱固定在行星支架上，行星支架固定在主轴上，所述内转子通过轴承安装在主轴上。The electric bicycle hub according to any one of claims 1 or 2, wherein said motor is an inner rotor and an outer stator structure, said outer stator being fixed to an inner wall of the hub shell And can rotate together with the hub shell; the inner rotor is fixed with a sun wheel sleeved on the main shaft, the sun gear meshes with a planetary gear, and the planetary gear meshes with a ring gear of the hub fixed on the hub shell, the planet The gear is mounted on the planet gear strut by a bearing that is fixed to the planet carrier, the planet carrier is fixed to the main shaft, and the inner rotor is mounted on the main shaft by bearings.
  8. 根据权利要求7所述电动自行车轮毂，其特征在于，所述控制器上安装有霍尔传感器，能够检测内转子的角度位置。The electric bicycle hub according to claim 7, wherein said controller is provided with a Hall sensor capable of detecting an angular position of the inner rotor.
  9. 根据权利要求7所述电动自行车轮毂，其特征在于，所述行星支架包括支撑圈和固定圈，所述支撑圈和固定圈由支撑臂连接，所述行星齿轮支柱与支撑圈固定连接，所述固定圈与主轴固定连接。The electric bicycle hub according to claim 7, wherein the planetary support comprises a support ring and a fixed ring, the support ring and the fixed ring are connected by a support arm, and the planetary gear support is fixedly connected with the support ring, The retaining ring is fixedly connected to the spindle.
  10. 根据权利要求9所述电动自行车轮毂，其特征在于，所述行星支架还包括辅助支撑圈，所述辅助支撑圈和支撑圈分设于固定圈的两侧，所述行星齿轮支柱分别与辅助支撑圈和支撑圈固定连接，行星齿轮位于辅助支撑圈和支撑圈之间。 The electric bicycle hub according to claim 9, wherein the planetary support further comprises an auxiliary support ring, the auxiliary support ring and the support ring are disposed on two sides of the fixed ring, and the planetary gear support and the auxiliary support ring respectively Fixedly connected to the support ring, the planetary gear is located between the auxiliary support ring and the support ring.
PCT/CN2016/097176 2016-08-29 2016-08-29 Wheel hub for electric bicycle WO2018039873A1 (en)

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