[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2023000539A1 - 一种用于电动助力车的扭力传感器 - Google Patents

一种用于电动助力车的扭力传感器 Download PDF

Info

Publication number
WO2023000539A1
WO2023000539A1 PCT/CN2021/127906 CN2021127906W WO2023000539A1 WO 2023000539 A1 WO2023000539 A1 WO 2023000539A1 CN 2021127906 W CN2021127906 W CN 2021127906W WO 2023000539 A1 WO2023000539 A1 WO 2023000539A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
magnetic
torque
torsion
torque sensor
Prior art date
Application number
PCT/CN2021/127906
Other languages
English (en)
French (fr)
Inventor
张斌
柯韦圣
黄泽鹏
Original Assignee
珠海市钧兴机电有限公司
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 珠海市钧兴机电有限公司 filed Critical 珠海市钧兴机电有限公司
Publication of WO2023000539A1 publication Critical patent/WO2023000539A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
    • G01L1/127—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using inductive means
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • 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
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the invention relates to the technical field of electric bicycles, in particular to a torque sensor for electric bicycles.
  • a sensor (English name: transducer/sensor) is a detection device that can feel the measured information, and can transform the sensed information into an electrical signal or other required form of information output according to a certain rule, so as to meet the information requirements. transmission, processing, storage, display, recording and control requirements.
  • An electric moped also known as a power-assisted bicycle, is a new type of two-wheeled vehicle, which belongs to a type of bicycle. It uses a battery as an auxiliary power source, is equipped with a motor, and has a power auxiliary system, which can realize the integration of human riding and motor-assisted driving. new means of transportation.
  • the torque sensor is the core component of the electric power assist system of the power-assisted bicycle to understand the intention of the rider. Due to the existence of the torque sensor, the motor output power of the electric bicycle can be adjusted according to the measured torque during the riding process to improve the riding comfort. .
  • the common structure is to paste the strain gauge on the center shaft or the bushing connected to the center shaft. Signal, and then control the output power of the motor, such a structure has the problems of insufficient detection accuracy, difficult installation, low stability and reliability.
  • the present invention provides a torque sensor for electric bicycles, which is installed on the central shaft, including: a torque sleeve, which can rotate with the central shaft, and one end is fixedly connected with the central shaft, The other end is connected to the output part; the magnetic conductive element is arranged on the outer surface of the torque sleeve, and the magnetic conductive element can rotate and deform with the torque sleeve; the bracket assembly is sleeved on the torque sleeve On, the bracket assembly is provided with a coil assembly and a circuit board, the coil assembly is electrically connected to the circuit board, the coil assembly is located on the bracket assembly to cover the part of the magnetic conduction element, the bracket assembly There is also a magnetic isolation sleeve; a magnetic isolation gasket, which is arranged on the bracket assembly in the area between the coil assembly and the circuit board; it also includes a speed magnetic ring and a magnet for inducing the speed.
  • the magnetic conduction element is in the shape of a thin sleeve and is attached to the outer surface of the torque sleeve.
  • an isolation layer is also provided between the torque sleeve and the magnetic conduction element.
  • the perforations are obliquely arranged on the outer surface of the magnetic permeable element, and the angle between two groups of the perforations in the length direction thereof is 75° to 105°.
  • a support cover is further included, the support cover is sleeved on the central shaft and can rotate relative to the central shaft, and one end of the bracket assembly is fixedly connected with the support cover.
  • the present invention mainly has the following beneficial effects: the torque sensor of the present invention changes the magnetic flux through the deformation of the magnetic conduction element as the torque sleeve rotates, and the detection component detects the change of the magnetic flux to measure the change of the torque, thereby improving the detection accuracy; and
  • the torque sensor of the present invention changes the magnetic flux through the deformation of the magnetic conduction element as the torque sleeve rotates, and the detection component detects the change of the magnetic flux to measure the change of the torque, thereby improving the detection accuracy; and
  • only the force on the central axis is required to cause the deformation of the magnetic conduction element to measure the change of the torsion force, so that the static and dynamic torsion forces can be detected, and the working performance is more stable and reliable.
  • Fig. 1 is the assembly schematic diagram of the magnetic flux type torque sensor of the embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a magnetic flux torque sensor according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of a magnetic flux torque sensor according to an embodiment of the present invention.
  • Fig. 4 is a schematic structural diagram of a magnetic permeable element according to an embodiment of the present invention.
  • a torque sensor for an electric bicycle the torque sensor is installed on the central shaft 100, which includes a torque sleeve 200 with one end fixed on the central shaft 100, and the torque sleeve 200 is provided with There is a magnetically conductive element 201, which can be sleeved or attached or embedded on the outer surface of the torque sleeve 200, and the magnetically conductive element 201 can rotate and deform with the torque sleeve 200, specifically Yes, the central shaft 100 is directly or indirectly connected to the pedal, one end of the torque sleeve 200 is splined to the central shaft 100 and rotates with the central shaft 100, and the other end of the torque sleeve 200 is connected to the output part 300, which needs to be explained Notably, in this embodiment, the output part 300 may be a shaft part or a tooth part, and the torque sleeve 200 and the output part 300 may be connected by a one-way device 301, which may be
  • the bracket assembly 202 After the circuit board 204 receives the electric signal, it is processed and converted to measure the change of the torque, so as to improve the detection accuracy of the torque sensor; the bracket assembly 202 is also provided with There is a magnetic isolation sleeve 207, the purpose of which is to prevent the magnetic field from dispersing and thus affecting the circuit board 204. Further, the area between the coil assembly 203 and the circuit board 204 on the bracket assembly 202 is also provided with a magnetic isolation sleeve.
  • the gasket 208, the coil assembly 203 and/or the magnetic element 201 of this embodiment is located in the area enclosed by the magnetic isolation sleeve 207 and the magnetic isolation gasket 208, which blocks the internal and external magnetic fields of the coil assembly 203 and ensures that the torque sensor detection stability and reliability;
  • the torque sensor also includes a speed magnetic ring 209 and an inductive element for inducting the speed magnetic ring 209, the speed magnetic ring 209 is fixedly installed on the central shaft 100 and follows the central shaft 100 rotations, the inductive element is arranged on the side of the circuit board 204 close to the speed magnetic ring 209, the inductive element can be a Hall IC, and the rotation rate of the central shaft 100 can be accurately measured or Cadence.
  • the magnetic conduction element 201 is in the shape of a thin sleeve and is attached to the outer surface of the torque sleeve 200 .
  • the torque sleeve 200 transmits torque, so that the torque sleeve 200 is slightly deformed, and the magnetic conductive element 201 is also rotated with the torque sleeve 200 and deformed, so that the change of magnetic flux is sensed by the coil assembly 203, and then passed through the circuit
  • the plate 204 processes the change to obtain the change of the torque.
  • the sleeve-shaped magnetic conductive element 201 is attached to the outer surface of the torque sleeve 200, which is easy to assemble, and the magnetic conductive element 201 can accurately follow the torque.
  • the sleeve 200 is rotated and deformed, which improves the detection accuracy of the torque sensor.
  • the purpose is to isolate the residual magnetism generated by the torque sleeve 200 after the alternating torque, so as to ensure that the change of the magnetic flux generated by the magnetic permeable element 201 is not affected by the torque sleeve 200 or the outside world.
  • the perforations 206 are formed on the outer surface of the magnetic permeable element 201.
  • the perforations 206 may be circular, rectangular, oval or waist-shaped.
  • the perforations 206 has two groups and is symmetrically distributed on the outer surface of the magnetic conduction element 201.
  • the two groups of perforations 206 are arranged obliquely and at a certain angle.
  • the angle between the two groups of perforations 206 in its length direction is 75° to 105°. The reason is that the deformation of the magnetic permeable element 201 along with the torque sleeve 200 can be enhanced to produce a greater change in magnetic flux, further improving the accuracy of the torque sensor.
  • the torque sensor further includes a support cover 400 , the support cover 400 is sleeved on the central shaft 100 and can rotate relative to the central shaft 100 , and one end of the bracket assembly 202 It is fixedly connected with the support cover 400, specifically, the support cover 400 can be connected to the central shaft 100 through the bearing 211, and one end of the bracket assembly 202 can be fixed on the support cover 400 through a threaded connection, the purpose of which is to support
  • the component 202, the coil component 203 and the circuit board 204 can be designed and assembled as a whole component, and then the whole component is put on the torque sleeve 200 through the support cover 400, which is convenient for overall disassembly and maintenance.
  • magnetic permeable element 201 described in all the above embodiments can be made of high magnetic permeability materials, such as iron or iron alloy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Power Steering Mechanism (AREA)

Abstract

一种用于电动助力车的扭力传感器，包括：扭力套筒(200)，可随中轴(100)转动，一端与中轴(100)固定连接，另一端与输出部(300)连接；导磁元件(201)，设置在扭力套筒(200)的外表面，导磁元件(201)可随扭力套筒(200)转动并发生形变；支架组件(202)，套设在扭力套筒(200)上，支架组件(202)上设置有线圈组件(203)和电路板(204)，线圈组件(203)和电路板(204)电连接，线圈组件(203)位于支架组件(202)上遮盖导磁元件(201)的部分；导磁元件(201)随扭力套筒(200)转动而发生形变，从而改变磁通量，检测组件检测磁通量的变化大小从而测得扭力的变化，提高检测精度；并且只需要中轴(100)受力使得导磁元件(201)发生形变即可测得扭力变化，因而能够检测静态和动态扭力，工作性能更加稳定可靠。

Description

一种用于电动助力车的扭力传感器 技术领域
本发明涉及电动助力车技术领域，特别是一种用于电动助力车的扭力传感器。
背景技术
传感器(英文名称：transducer/sensor)是一种检测装置，能感受到被测量的信息，并能将感受到的信息，按一定规律变换成为电信号或其他所需形式的信息输出，以满足信息的传输、处理、存储、显示、记录和控制等要求。
电动助力车，又称助力自行车，是一种新型二轮车辆，属于自行车的一种，以电池作为辅助动力来源，安有电机,并具备动力辅助系统，能实现人力骑行和电机助动一体化的新型交通工具。扭力传感器是助力自行车电动助力系统理解骑行者意图的核心部件，由于扭力传感器的存在使得在骑行过程中，能够根据所测得的扭力来调整电动自行车的电机输出功率，提高骑乘的舒适度。
目前，助力自行车越来越多地采用中轴安装扭力传感器，常用的结构是在中轴或中轴连接的套管上粘贴应变片，通过应变片感应踩踏的扭力大小，通过信号处理后输出电压信号，进而控制电机的输出功率，这样的结构存在着检测精度不足，安装不易以及稳定性、可靠性低的问题。
发明内容
为解决现有技术中存在的上述问题，本发明提供了一种用于电动助力车的扭力传感器，安装在中轴上，包括：扭力套筒，可随中轴转动，一端与中轴固定连接，另一端与输出部连接；导磁元件，设置在所述扭力套筒的外表面，所述导磁元件可随所述扭力套筒转动并发生形变；支架组件，套 设在所述扭力套筒上，所述支架组件上设置有线圈组件和电路板，所述线圈组件和所述电路板电连接，所述线圈组件位于所述支架组件上遮盖所述导磁元件的部分，所述支架组件上还套设有隔磁套筒；隔磁垫片，设置在所述支架组件上位于所述线圈组件和所述电路板之间的区域；还包括速度磁环和用于感应所述速度磁环的感应元件，所述速度磁环固定安装与所述中轴上，所述感应元件设置于所述电路板上。
进一步的，所述导磁元件呈套筒薄片状并且附于所述扭力套筒的外表面。
进一步的，所述扭力套筒与所述导磁元件之间还设置有隔离层。
进一步的，所述导磁元件的外表面形成有若干个穿孔。
进一步的，所述穿孔有两组，两组所述穿孔对称分布。
进一步的，所述穿孔倾斜设置在所述导磁元件的外表面，并且两组所述穿孔在其长度方向的夹角为75°至105°。
进一步的，还包括支撑盖，所述支撑盖套设在所述中轴上并且可相对中轴转动，所述支架组件的一端与所述支撑盖固定连接。
本发明主要具有以下有益效果：本发明的扭力传感器通过到导磁元件随扭力套筒转动而发生形变，从而改变磁通量，检测组件检测磁通量的变化大小从而测得扭力的变化，提高检测精度；并且本发明中只需要中轴受力使得导磁元件发生形变即可测得扭力变化，因而能够检测静态和动态扭力，工作性能更加稳定可靠。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明实施例的磁通式扭力传感器的装配示意图；
图2是本发明实施例的磁通式扭力传感器的结构示意图；
图3是本发明实施例的磁通式扭力传感器的剖面示意图；
图4是本发明实施例的导磁元件的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
参照图1至图3所示的一种用于电动助力车的扭力传感器，该扭力传感器安装在中轴100上，其包括一端固定在中轴100上的扭力套筒200，扭力套筒200上设置有导磁元件201，所述导磁元件201可以是套接或贴覆或嵌设于扭力套筒200的外表面，并且所述导磁元件201可以随扭力套筒200转动并发生形变，具体的，中轴100通过直接或间接的方式连接踏板，扭力套筒200的一端通过花键与中轴100连接并且随中轴100转动，扭力套筒200的另一端连接有输出部300，需要说明的是，本实施例中，所述输出部300可以是轴类零件或齿类零件，并且扭力套筒200与输出部300之间可以通过单向装置301连接，该单向装置301可以是棘爪或单向离合器，该单向离合器可以采用行业内常用的结构，本技术方案中不再赘述；所述扭力套筒200上套接有支架组件202，支架组件202上设置有线圈组件203和电路板204，所述线圈组件203和所述电路板204电连接，并且所述线圈组件203设置在支架组件202上遮盖导磁元件201的部分，即线圈组件203能够感应到导磁元件201发生形变引起的磁通量变化并形成电信号而传输到电路板204中，电路板204接收电信号后经处理转化后测得扭力的变化，提高该扭力传感器的检测精度；所述支架组件202上还设置有隔磁套筒207，其目的在于避免磁场散从而影响到电路板204，进一步的，所述支架组件202上位于所述线圈组件203和所述电路板204之间的区域还设置有隔磁垫片208，本实施例的线圈组件203和/或导磁元件201位于隔磁套筒207和隔磁垫片208围合形成的区域内，阻隔线圈组件203的内外部磁场，保证该扭力传感器的检测稳定性和可靠性；该扭力传感器还包 括速度磁环209和用于感应所述速度磁环209的感应元件，所述速度磁环209固定安装在所述中轴100上并且随中轴100转动，所述感应元件设置于电路板204上靠近速度磁环209的一面，该感应元件可以是霍尔IC，通过感应元件与速度磁环209配合能够准确测得中轴100的转动速率或踏频。
在一些实施例中，参照图4所示，所述导磁元件201呈套筒薄片状并且附于所述扭力套筒200的外表面，中轴100驱使输出部300转动时，通过扭力套筒200传递扭力，从而使得扭力套筒200产生微小的变形，而导磁元件201也随扭力套筒200转动并产生形变，从而因此磁通量的变化，通过线圈组件203感应到该磁通量变化，进而通过电路板204将该变化处理后得出扭力的变化，本实施例中，通过套筒状的导磁元件201贴在扭力套筒200的外表面，具有易于组装、导磁元件201能够精确地随扭力套筒200转动而发生形变，提升该扭力传感器的检测精度。
在一些实施例中，参照图3所示，所述扭力套筒200与所述导磁元件201之间还设置有隔离层，具体的，该隔离层可以是在扭力套筒200的外表面镀铜等，其目的在于隔离扭力套筒200经过交变力矩后产生的残留磁性，从而保证导磁元件201产生的磁通量变化不受扭力套筒200或外界影响。
在一些实施例中，参照图4所示，所述导磁元件201的外表面形成有若干个穿孔206，该穿孔206可以是圆形、矩形、椭圆形或腰形，进一步的，所述穿孔206有两组且对称分布在导磁元件201的外表面，该两组穿孔206倾斜设置且呈一定的夹角，两组穿孔206在其长度方向的夹角为75°至105°，其目的在于可增强导磁元件201随扭力套筒200而发生形变而产生更大的磁通量变化，进一步提升该扭力传感器的精确性。
在一些实施例中，参照图1与图3所示，该扭力传感器还包括有支撑盖400，所述支撑盖400套设在中轴100上并且可相对中轴100转动，支架组件202的一端与所述支撑盖400固定连接，具体的，所述支撑盖400可以 通过轴承211连接在中轴100上，而支架组件202的一端则可以通过螺纹连接固定在支撑盖400上，其目的在于支架组件202、线圈组件203和电路板204可以作为整个部件设计和组装后，再将该整体部件通过支撑盖400套装于扭力套筒200上，方便整体拆装和维护。
需要说明的是，上述所有实施例所述的导磁元件201可以采用高磁导率的材料制成，如铁或铁合金等。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (7)

  1. 一种用于电动助力车的扭力传感器，安装在中轴(100)上，其特征在于，包括：
    扭力套筒(200)，可随中轴(100)转动，一端与中轴(100)固定连接，另一端与输出部(300)连接；
    导磁元件(201)，设置在所述扭力套筒(200)的外表面，所述导磁元件(201)可随所述扭力套筒(200)转动并发生形变；
    支架组件(202)，套设在所述扭力套筒(200)上，所述支架组件(202)上设置有线圈组件(203)和电路板(204)，所述线圈组件(203)和所述电路板(204)电连接，所述线圈组件(203)位于所述支架组件(202)上遮盖所述导磁元件(201)的部分，所述支架组件(202)上还套设有隔磁套筒(207)；
    隔磁垫片(208)，设置在所述支架组件(202)上位于所述线圈组件(203)和所述电路板(204)之间的区域；
    还包括速度磁环(209)和用于感应所述速度磁环(209)的感应元件，所述速度磁环(209)固定安装与所述中轴(100)上，所述感应元件设置于所述电路板(204)上。
  2. 根据权利要求1所述的一种用于电动助力车的扭力传感器，其特征在于，所述导磁元件(201)呈套筒薄片状并且附于所述扭力套筒(200)的外表面。
  3. 根据权利要求1或2所述的一种用于电动助力车的扭力传感器，其特征在于，所述扭力套筒(200)与所述导磁元件(201)之间还设置有隔离层。
  4. 根据权利要求1所述的一种用于电动助力车的扭力传感器，其特征在于，所述导磁元件(201)的外表面形成有若干个穿孔(206)。
  5. 根据权利要求4所述的一种用于电动助力车的扭力传感器，其特征在于，所述穿孔(206)有两组，两组所述穿孔(206)对称分布。
  6. 根据权利要求5所述的一种用于电动助力车的扭力传感器，其特征在于，所述穿孔(206)倾斜设置在所述导磁元件(201)的外表面，并且两组所述穿孔(206)在其长度方向的夹角为75°至105°。
  7. 根据权利要求1所述的一种用于电动助力车的扭力传感器，其特征在于，还包括支撑盖(400)，所述支撑盖(400)套设在所述中轴(100)上并且可相对中轴(100)转动，所述支架组件(202)的一端与所述支撑盖(400)固定连接。
PCT/CN2021/127906 2021-07-22 2021-11-01 一种用于电动助力车的扭力传感器 WO2023000539A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110832603.8 2021-07-22
CN202110832603.8A CN113418637B (zh) 2021-07-22 2021-07-22 一种用于电动助力车的扭力传感器

Publications (1)

Publication Number Publication Date
WO2023000539A1 true WO2023000539A1 (zh) 2023-01-26

Family

ID=77718074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/127906 WO2023000539A1 (zh) 2021-07-22 2021-11-01 一种用于电动助力车的扭力传感器

Country Status (3)

Country Link
CN (1) CN113418637B (zh)
TW (1) TWI788001B (zh)
WO (1) WO2023000539A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113418637B (zh) * 2021-07-22 2023-05-12 珠海市钧兴机电有限公司 一种用于电动助力车的扭力传感器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015010870A (ja) * 2013-06-27 2015-01-19 ブリヂストンサイクル株式会社 トルクセンサの位置決め構造およびこれを備えた電動アシスト自転車
CN105711727A (zh) * 2016-04-19 2016-06-29 钟德斌 一种采用中轴力矩传感器的自行车助力系统
CN108163128A (zh) * 2018-02-27 2018-06-15 宋文平 一种基于逆磁致伸缩效应的助力自行车双边中轴扭矩传感器
CN208630790U (zh) * 2018-07-02 2019-03-22 常州野人电子科技有限公司 一种电动车动力系统、扭矩测量装置
CN209541960U (zh) * 2019-05-10 2019-10-25 深圳市奥酷曼智能技术有限公司 扭式中轴双边力矩传感器及电动助力车
CN210618364U (zh) * 2019-09-02 2020-05-26 苏州哈工拓普传感控制技术有限公司 一种中置电机内置式电助力自行车力矩传感器
CN111693192A (zh) * 2020-07-17 2020-09-22 珠海市钧兴机电有限公司 一种磁通式扭力传感器
CN112644632A (zh) * 2021-02-25 2021-04-13 宁波巨隆机械股份有限公司 电动助力自行车用双边线性扭矩中轴传感器
CN113418637A (zh) * 2021-07-22 2021-09-21 珠海市钧兴机电有限公司 一种用于电动助力车的扭力传感器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203111433U (zh) * 2013-02-01 2013-08-07 苏州盛亿电机有限公司 电动自行车中轴扭力传感装置
CN203111431U (zh) * 2013-02-04 2013-08-07 苏州盛亿电机有限公司 电动自行车中置电机装置
US9808244B2 (en) * 2013-03-14 2017-11-07 Ethicon Llc Sensor arrangements for absolute positioning system for surgical instruments
CN209356099U (zh) * 2018-12-18 2019-09-06 昆山攀登电子科技有限公司 一种电动自行车双边扭矩速度感应装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015010870A (ja) * 2013-06-27 2015-01-19 ブリヂストンサイクル株式会社 トルクセンサの位置決め構造およびこれを備えた電動アシスト自転車
CN105711727A (zh) * 2016-04-19 2016-06-29 钟德斌 一种采用中轴力矩传感器的自行车助力系统
CN108163128A (zh) * 2018-02-27 2018-06-15 宋文平 一种基于逆磁致伸缩效应的助力自行车双边中轴扭矩传感器
CN208630790U (zh) * 2018-07-02 2019-03-22 常州野人电子科技有限公司 一种电动车动力系统、扭矩测量装置
CN209541960U (zh) * 2019-05-10 2019-10-25 深圳市奥酷曼智能技术有限公司 扭式中轴双边力矩传感器及电动助力车
CN210618364U (zh) * 2019-09-02 2020-05-26 苏州哈工拓普传感控制技术有限公司 一种中置电机内置式电助力自行车力矩传感器
CN111693192A (zh) * 2020-07-17 2020-09-22 珠海市钧兴机电有限公司 一种磁通式扭力传感器
CN112644632A (zh) * 2021-02-25 2021-04-13 宁波巨隆机械股份有限公司 电动助力自行车用双边线性扭矩中轴传感器
CN113418637A (zh) * 2021-07-22 2021-09-21 珠海市钧兴机电有限公司 一种用于电动助力车的扭力传感器

Also Published As

Publication number Publication date
TW202305335A (zh) 2023-02-01
TWI788001B (zh) 2022-12-21
CN113418637B (zh) 2023-05-12
CN113418637A (zh) 2021-09-21

Similar Documents

Publication Publication Date Title
WO2015161545A1 (zh) 一种电动自行车中轴力矩速度传感装置
JP6408150B2 (ja) 電動自転車中心モーター及びそのトルク検知デバイス
CN109178186B (zh) 逆磁致伸缩中轴力矩传感器
CN103085932B (zh) 电动自行车中轴力矩传感装置
WO2023000539A1 (zh) 一种用于电动助力车的扭力传感器
CN110595655B (zh) 一种电动助力车扭矩检测装置及电动助力车
WO2022011831A1 (zh) 一种磁通式扭力传感器
WO2018205713A1 (zh) 一种电动车力矩感应测量式电机及电动自行车
NL2030660B1 (en) Electric Auxiliary Drive for a Bicycle
WO2021063019A1 (zh) 一种助力自行车扭矩传感器及助力自行车
WO2014110933A1 (zh) 具有助力传感和断电功能的轮毂电机
CN108163128A (zh) 一种基于逆磁致伸缩效应的助力自行车双边中轴扭矩传感器
CN203064150U (zh) 电动自行车中轴力矩传感装置
CN111071382A (zh) 一种电动助力自行车动静态结合的力矩传感器
CN212125426U (zh) 一种电动助力自行车动静态结合的力矩传感器
TWI613121B (zh) 使用於助力腳踏車的曲柄傳動機構
WO2015101219A1 (zh) 轮速传感装置及其感应单元及使用该轮速传感装置的车辆
CN209321167U (zh) 一种中轴力矩传感器装置
TWM613146U (zh) 電動助力自行車底托架增加踩踏感裝置
TWM621992U (zh) 電助自行車的扭力感測改良裝置
CN111361682B (zh) 中轴扭力检测传感装置
TWM614076U (zh) 電助自行車的扭力感測裝置
WO2022121117A1 (zh) 一种自行车力矩传动机构、系统及电助力自行车
CN221893209U (zh) 自行车中轴
CN221642623U (zh) 用于助力自行车的动力组件及助力自行车

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21950777

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21950777

Country of ref document: EP

Kind code of ref document: A1