WO2018205713A1 - Moteur de type détection de couple de bicyclette électrique et bicyclette électrique - Google Patents

Moteur de type détection de couple de bicyclette électrique et bicyclette électrique Download PDF

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Publication number
WO2018205713A1
WO2018205713A1 PCT/CN2018/077239 CN2018077239W WO2018205713A1 WO 2018205713 A1 WO2018205713 A1 WO 2018205713A1 CN 2018077239 W CN2018077239 W CN 2018077239W WO 2018205713 A1 WO2018205713 A1 WO 2018205713A1
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WO
WIPO (PCT)
Prior art keywords
motor
torque
sensing
speed
electric vehicle
Prior art date
Application number
PCT/CN2018/077239
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English (en)
Chinese (zh)
Inventor
康献兵
Original Assignee
昆山攀登电子科技有限公司
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Filing date
Publication date
Application filed by 昆山攀登电子科技有限公司 filed Critical 昆山攀登电子科技有限公司
Publication of WO2018205713A1 publication Critical patent/WO2018205713A1/fr

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    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/24—Devices for sensing torque, or actuated thereby
    • 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
    • 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 invention relates to the field of electric machines, in particular to an electric vehicle torque induction measuring type electric motor and an electric bicycle.
  • Electric bicycles refer to the use of batteries as auxiliary energy on the basis of ordinary bicycles, and the installation of motor, controller, battery, steering handles and other control components and display instrumentation system of mechatronics personal transport.
  • Objects of the present invention include, for example, an electric vehicle torque sensing measuring type motor that improves the deficiencies of the prior art, is simple in construction and assembly, and can detect torque.
  • It is also an object of the present invention to provide an electric bicycle comprising the above-described electric vehicle torque sensing measuring motor having all of the functions of the electric vehicle torque sensing measuring type motor.
  • An embodiment of the present invention provides an electric vehicle torque induction measuring type motor, comprising a motor shaft rod, a motor stator portion and a motor rotor portion sleeved on the motor shaft rod, and the motor rotor portion is connected with the first a bearing, the outer circumference of the motor shaft sleeve is provided with a torque sensing device, and the torque sensing device includes a fixing portion, a moving portion, a transition portion, and at least one configured to be installed between the fixed portion and the moving portion.
  • the fixing portion Measuring a force sensor of the relative displacement of the fixed portion and the moving portion, the fixing portion being coupled to the motor shaft, the moving portion and the motor rotor portion being connected by the first bearing, the fixing The moving portion is connected to the moving portion, and the motor rotor portion is connected to a load connecting portion, and the load connecting portion is disposed to be connected to an external force device or a member.
  • the force sensor includes a torque sensing Hall mounted on a fixed portion or a moving portion, and a torque sensing magnet mounted on the moving portion or the fixed portion, the torque The sensing Hall and the torque sensing magnet are oppositely arranged.
  • the fixing portion is provided with a torque sensing Hall mounting groove
  • the moving portion is provided with a torque induction magnet mounting slot
  • an opening of the torque sensing Hall mounting slot is opposite to an opening of the torque sensing magnet mounting slot
  • the torque sensing Hall is mounted in the torque sensing Hall mounting slot
  • the torque sensing magnet is mounted in the torque sensing magnet mounting slot.
  • the force sensor is a deformation sensing sensor, and the deformation sensing sensor is disposed at a transition portion of the torque sensing device.
  • the load connecting portion includes a flywheel
  • a stepping speed sensor is disposed between the motor stator portion and the load connecting portion
  • the assisting step speed sensor includes a speed sensing portion and a speed rotating portion
  • the speed The sensing portion is fixedly coupled to the stator portion of the motor
  • the speed rotating portion is made of a ferromagnetic material
  • the speed rotating portion is connected to a relative rotating portion of the flywheel, or the speed rotating portion is a sprocket of a flywheel.
  • the speed rotating portion includes a speed sensing disk and a speed sensing magnet, the speed sensing disk is connected to an end surface of the fly wheel, and the speed sensing magnet is mounted on the speed sensing disk.
  • the speed sensing portion is a speed sensing Hall
  • the moving portion, the fixing portion or the transition portion is further provided with a speed sensing Hall mounting slot, and the speed sensing Hall is located at the speed sensing The Hall is installed in the slot.
  • the load connecting portion includes a load connecting portion fixing portion, a load connecting portion relative rotating portion and a ratchet structure
  • the load connecting portion fixing portion is configured to be connected to the motor end cover
  • the load connecting portion is opposite to the rotating portion And being connected to the external force mechanism
  • the ratchet structure is respectively connected to the load connecting portion fixing portion and the load connecting portion relative to the rotating portion and located at the load connecting portion fixing portion and the load connecting portion relative rotating portion between.
  • the electric vehicle torque sensing measuring motor further includes a control main board and a signal output line, wherein the force sensor and the speed sensing unit are electrically connected to the control board, and the signal output line is electrically connected to the control board.
  • the control board is configured to receive a torque signal of the force sensor and a speed signal of the speed sensing portion and perform data processing, and output the processed signal via the signal output line.
  • the motor shaft has an outlet hole, and the signal output line is configured to pass through the outlet hole and extend to an outer side of the electric vehicle torque induction measuring motor.
  • the rotor portion of the motor includes a rotor magnetic steel portion, a motor housing and a motor end cover, the rotor magnetic steel portion is connected to the motor housing, and the motor end cover is connected to the motor housing and the A rotor magnetic steel portion is located inside the motor casing, the first bearing is coupled to the motor end cover, and the load connection portion is coupled to the motor end cover.
  • a second bearing groove is disposed inside the rotor portion of the motor, and the second bearing is installed in the second bearing groove.
  • a inner side of the motor end cover is provided with a first bearing groove, and the first bearing is installed in the first bearing groove.
  • the motor shaft bar has a stator mounting portion, a torque sensing device mounting portion and a second bearing mounting portion, and the outer circumference of the stator mounting portion is sleeved with the motor stator portion, and the torque sensing device mounting portion
  • the torque sensing device is sleeved on the outer circumference
  • the second bearing is sleeved on the outer circumference of the second bearing mounting portion, and the second bearing is configured to be connected to the motor housing.
  • stator mounting portion and the torque sensing device mounting portion form a first stepped surface
  • stator mounting portion and the second bearing mounting portion form a second stepped surface
  • An embodiment of the present invention also provides an electric bicycle comprising the above-mentioned electric vehicle torque induction measuring type motor having all the functions of the electric vehicle torque sensing measuring type motor.
  • Advantages of the electric vehicle torque sensing measuring motor of the present invention include, for example:
  • the torque measuring device In addition to integrating the torque measuring device in the motor, it also integrates a speed measuring device, which can simultaneously sense the torque signal and speed signal of the pedal, solves the single torque safety hazard, and greatly improves the comfort and safety of riding.
  • the whole vehicle outlet is simple, and the maintenance and replacement is more convenient.
  • 1 is a schematic view showing the assembly of an electric vehicle torque sensing measuring motor
  • Figure 2 is a schematic view of another angle of Figure 1;
  • FIG. 3 is a schematic exploded view of an electric vehicle torque sensing measuring motor
  • Figure 4 is a schematic view of another angle of Figure 3;
  • Figure 5 is an enlarged schematic view showing a portion of the structure of Figure 3;
  • Figure 6 is a schematic view of the assembly of Figure 5;
  • Figure 7 is an enlarged schematic view showing a portion of the structure of Figure 5;
  • Figure 8 is a schematic exploded view of the load connecting portion and the speed rotating portion
  • Figure 9 is a schematic view of the assembly of Figure 8.
  • Fig. 10 is a working principle diagram of an electric vehicle torque induction measuring type motor.
  • Icon 1-motor shaft stick; 11-stator mounting part; 12-torque sensing device mounting part; 13-outlet hole; 14-second bearing mounting part; 2-motor stator part; 20-motor rotor part; 3-motor Housing; 31-second bearing groove; 32-rotor magnetic steel part; 4-motor end cover; 41-first bearing groove; 5-first bearing; 6-torque sensing device; 61-fixing portion; 62-moving portion ; 63-transition; 64-torque induction Hall mounting slot; 65-torque induction magnet mounting slot; 66-speed sensing Hall mounting slot; 67-torque sensing Hall; 68-torque induction magnet; 69-speed induction 7-second bearing; 8-load connection; 80-foot plate; 801-chain; 81-flywheel; 82-speed induction disk; 83-speed induction magnet; 9-control board; 10-signal output line .
  • connection should be understood broadly, and may be fixed connection, for example, or may be The connection is disassembled or connected integrally; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the present embodiment provides an electric vehicle torque induction measuring motor, which comprises a motor shaft rod 1 , a motor stator portion 2 and a motor rotor portion 20 which are sleeved on the motor shaft rod 1 and a motor.
  • the rotor portion 20 includes a rotor magnet portion 32, a motor casing 3, and a motor end cover 4.
  • the motor rotor portion 20 can also be other structures, such as a gear structure, a ratchet.
  • the rotor magnet portion 32 is directly connected to the motor casing 3 or connected by other structures, such as a gear structure.
  • the motor shaft 1 has a stator mounting portion 11, a torque sensing device mounting portion 12, an outlet hole 13 and a second bearing mounting portion 14.
  • the stator mounting portion 11 and the torque sensing device mounting portion 12 form a first stepped surface
  • the stator mounting portion 11 and the second bearing mounting portion 14 form a second stepped surface
  • the outer periphery of the stator mounting portion 11 is sleeved with the motor stator portion 2, and the torque sensing
  • the outer circumference of the device mounting portion 12 is sleeved with a torque sensing device 6.
  • the outer circumference of the torque sensing device 6 is sleeved with a first bearing 5, the first bearing 5 is connected to the motor end cover 4, and the inner end of the motor end cover 4 is provided with a first bearing.
  • the groove 41, the first bearing 5 is mounted in the first bearing groove 41.
  • a second bearing 7 is sleeved on the outer circumference of the second bearing mounting portion 14, and a second bearing groove 31 is provided inside the motor housing 3, and the second bearing 7 is mounted in the second bearing groove 31.
  • the torque sensing device 6 includes a fixing portion 61, a moving portion 62, a transition portion 63, and at least one force disposed between the fixed portion 61 and the moving portion 62 to sense the relative displacement of the fixed portion 61 and the moving portion 62. sensor.
  • the fixing portion 61 is connected to the motor shaft 1 and the moving portion 62 is connected to the motor rotor portion 20 via the first bearing 5. Specifically, the moving portion 62 is connected to the inner circumference of the first bearing 5, and the fixing portion 61 and the moving portion 62 pass. The transition portion 63 is connected.
  • the force sensor includes a torque sensing Hall 67 and a torque sensing magnet 68.
  • the fixing portion 61 is provided with a torque sensing Hall mounting groove 64
  • a torque sensing Hall mounting groove 64 is provided with a torque sensing Hall 67
  • the moving portion 62 is provided with a torque sensing.
  • the magnet mounting groove 65 is provided with a torque induction magnet 68 in the torque induction magnet mounting groove 65
  • the torque sensing Hall 67 is disposed opposite to the torque sensing magnet 68.
  • the torque sensing Hall 67 may be disposed on the moving portion 62, and the torque sensing magnet 68 may be disposed on the fixed portion 61 as long as the torque sensing Hall 67 and the torque sensing magnet 68 are relatively moved.
  • the force sensor may also be a deformation sensing sensor that is mounted on the transition portion 63. The generated moment is detected by detecting the deformation of the transition portion 63.
  • a control current I is applied across the semiconductor wafer, and a uniform magnetic field having a magnetic induction intensity B is applied in the vertical direction of the sheet, and a potential difference is generated in a direction perpendicular to the current and the magnetic field.
  • Hall voltage of uH is applied across the semiconductor wafer, and a uniform magnetic field having a magnetic induction intensity B is applied in the vertical direction of the sheet, and a potential difference is generated in a direction perpendicular to the current and the magnetic field.
  • the Hall voltage changes with the change of the magnetic field strength.
  • the magnetic field detected by the force sensor changes, thereby converting the strength of the magnetic field into the level of the voltage, thereby outputting an electric signal, and by signal processing, the corresponding generated torque can be generated. Detected.
  • the motor end cover 4 is connected to the load connecting portion 8
  • the load connecting portion 8 is connected to an external force device or component
  • the load connecting portion 8 drives the motor rotor portion 20 to rotate
  • the load connecting portion 8 is a flywheel.
  • the assisting step speed sensor is divided into a speed sensing portion and a speed rotating portion
  • the speed sensing portion is fixed to the motor stator portion 2
  • the speed rotating portion Made of ferromagnetic material
  • the speed rotating portion is connected to the relative rotating portion of the flywheel directly or through other structures, or the speed rotating portion is a sprocket of the flywheel.
  • the speed rotating portion includes a speed sensing disk 82 and a speed sensing magnet 83.
  • the speed sensing disk 82 is connected to the end surface of the flywheel 81, and the speed sensing magnet 83 is mounted on the speed sensing disk 82.
  • the speed sensing portion is a speed sensing Hall 69
  • the moving portion 62 is further provided with a speed sensing Hall mounting groove 66
  • the speed sensing Hall mounting groove 66 is provided with a speed sensing Hall 69.
  • the speed sensing portion may be other electromagnetic or capacitive sensing elements.
  • the speed sensing Hall mounting groove 66 may also be disposed on the fixed portion 61 or the transition portion 63.
  • the electric vehicle torque induction measuring motor further includes a control main board 9 and a signal output line 10, the force sensor and the speed sensing unit are electrically connected to the control main board 9, and the signal output line 10 is electrically connected with the control main board 9, and the signal output is
  • the wire 10 extends through the outlet opening 13 to the outside of the electric vehicle torque sensing measuring motor.
  • the torque signal and the speed signal sensed by the torque sensing Hall 67 and the speed sensing Hall 69 are received by the control board and processed for data, and then output through the signal output line 10.
  • the load connecting portion 8 includes a load connecting portion fixing portion, a load connecting portion relative rotating portion, and a ratchet structure, the load connecting portion fixing portion is disposed to be coupled to the motor end cover 4, and the load connecting portion is disposed to be coupled to the external force mechanism with respect to the rotating portion, the ratchet
  • the structural body is connected to the load connecting portion fixing portion and the load connecting portion to the rotating portion, respectively, and between the load connecting portion fixing portion and the load connecting portion and the rotating portion.
  • the working principle of the invention is that when the bicycle is riding, the user drives the pedal 80 to rotate by the pedal, and the pedal 80 drives the load connection portion 8 to rotate through the chain 801. At this time, the load connection portion is caused by the external force of the chain 801. 8 generates a circumferential pulling force, because the load connecting portion 8 is mounted on the motor end cover 4, so that the motor end cover 4 is displaced, thereby driving the first bearing 5 fixed thereto to generate displacement, thereby driving the torque connected with the first bearing 5
  • the moving portion 62 of the sensing device is displaced relative to the fixed portion 61.
  • the torque sensing Hall 67 senses the displacement of the torque sensing magnet 68 to calculate the moment the user is pedaling.
  • the speed sensing Hall 69 located on the torque sensing device 6 calculates the rotation of the rotating body of the load connecting portion 8 having the ferromagnetic material, and counts the number of teeth of the pedal toothed disc and the flywheel to calculate the human body to the electric motor.
  • the pedal of the car helps to step on the speed.
  • the embodiment provides an electric bicycle including the above-described electric vehicle torque induction measuring type motor.
  • Embodiment 1 For the structure of the electric vehicle torque induction measuring type motor, reference may be made to Embodiment 1, which has all the functions of the electric vehicle torque sensing measuring type motor.
  • FIG. 1 and 2 there are shown structural schematics of two different viewing angles of an electric vehicle torque sensing measuring motor.
  • the electric vehicle torque sensing measuring motor includes a motor shaft rod 1, a motor stator portion 2 and a motor rotor portion 20, and the motor stator portion 2 is sleeved and fixed on the motor shaft rod 1.
  • the motor rotor portion 20 includes a rotor magnet portion 32, a motor casing 3, and a motor end cover 4, and the rotor magnet portion 32 is connected to the motor casing 3, and after the motor end cover 4 is mounted on the motor casing 3, the rotor magnet portion 32 is located The inside of the motor housing 3.
  • a second bearing groove 31 is disposed inside the motor housing 3, and a second bearing 7 is mounted in the second bearing groove 31, and the second bearing 7 is mounted on the motor shaft 1.
  • a control main board 9 and a torque sensing device 6 are also mounted on the motor shaft stick 1, and the torque sensing device 6 is mounted on the motor end cover 4 via the first bearing 5.
  • the motor end cover 4 is provided with a first bearing groove 41, and the first bearing 5 is installed in the first bearing groove 41.
  • the load connection portion 8 is mounted on the motor end cover 4.
  • the motor shaft 1 is provided with a stator mounting portion 11, a torque sensing device mounting portion 12, an outlet hole 13 and a second bearing mounting portion 14.
  • the stator mounting portion 11 is configured to mount the motor stator portion 2; the torque sensing device mounting portion 12 is configured to mount the torque sensing device 6; the outlet hole 13 is configured to pass the signal output line 10, one end of the signal output line 10 and the above-described torque sensing
  • the device 6 is electrically connected to the control board 9, the other end of the signal output line 10 extends to the outside of the motor casing 3, and the second bearing mounting portion 14 is configured to mount the second bearing 7.
  • the torque sensing device 6 includes a fixed portion 61, a transition portion 63, a moving portion 62, a torque sensing Hall 67, a torque sensing magnet 68, and a speed sensing Hall 69.
  • the fixing portion 61 is attached to the torque sensing device mounting portion 12, and the fixing portion 61 is fixed to the motor shaft stick 1.
  • the fixing portion 61 and the moving portion 62 are connected by a transition portion 63.
  • the fixing portion 61 is located at a center position of the moving portion 62.
  • the moving portion 62 is mounted on the motor end cover 4 via the first bearing 5, and the moving portion 62 is rotatably connected to the motor end cover 4. .
  • the fixed portion 61 is provided with a torque sensing Hall mounting groove 64 configured to mount the torque sensing Hall 67
  • the moving portion 62 is provided with a torque sensing magnet configured to mount the torque sensing magnet 68.
  • the groove 65 is mounted, and the openings of the two grooves correspond, so that the torque sensing Hall 67 corresponds to the torque sensing magnet 68.
  • the moving portion 62 is also provided with a speed sensing Hall mounting groove 66 configured to mount the speed sensing Hall 69. Similarly, one end of the signal output line 10 described above is electrically connected to the speed sensing Hall 69.
  • the load connecting portion 8 includes a flywheel 81, a speed sensing disk 82, and a speed sensing magnet 83.
  • the speed sensing magnet 83 is mounted on the speed sensing disk 82, and the speed sensing disk 82 is connected to the end surface of the flywheel 81.
  • the pedal 80 and the load connecting portion 8 are connected by a chain 801, and when the pedal 80 is rotated, the load connecting portion 8 is rotated.
  • the present invention provides an electric vehicle torque induction measuring type motor, which has a simple structure, a simple assembly process, high detection precision, and low cost.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

L'invention concerne un moteur de type détection de couple de bicyclette électrique et une bicyclette électrique, le moteur de type détection de couple de bicyclette électrique comprenant un arbre de moteur, et une partie de stator de moteur ainsi qu'une partie de rotor de moteur montée sur l'arbre de moteur. Un premier palier est relié à la partie de rotor de moteur, et un dispositif de détection de couple est ajusté sur la périphérie extérieure de l'arbre de moteur. Le dispositif de détection de couple comprend une partie fixe, une partie mobile, une partie de transition et au moins un capteur de force monté entre la partie fixe et la partie mobile, et conçu pour détecter le déplacement relatif de la partie fixe et de la partie mobile. La partie fixe est reliée à l'arbre de moteur, la partie mobile est reliée à la partie de rotor de moteur par l'intermédiaire du premier palier, et la partie fixe est reliée à la partie mobile par l'intermédiaire de la partie de transition. Une partie de liaison de charge est reliée à la partie de rotor de moteur, la partie de liaison de charge étant configurée pour être reliée à un dispositif ou à un composant de force externe. Par intégration d'un dispositif de mesure de couple à l'intérieur du moteur, un signal de couple d'une pédale peut être détecté, ce qui permet d'améliorer le confort de conduite, et d'obtenir une sortie simple et une maintenance ainsi qu'un remplacement pratiques.
PCT/CN2018/077239 2017-05-10 2018-02-26 Moteur de type détection de couple de bicyclette électrique et bicyclette électrique WO2018205713A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710325824.X 2017-05-10
CN201710325824.XA CN106953470B (zh) 2017-05-10 2017-05-10 一种电动车力矩感应测量式电机

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WO2018205713A1 true WO2018205713A1 (fr) 2018-11-15

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WO (1) WO2018205713A1 (fr)

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CN106953470B (zh) * 2017-05-10 2020-04-10 昆山攀登电子科技有限公司 一种电动车力矩感应测量式电机
CN109572916A (zh) * 2019-01-14 2019-04-05 昆山攀登电子科技有限公司 一种电动自行车塔基扭矩速度感应装置
CN112260489B (zh) * 2020-12-23 2021-09-03 北京新能源汽车股份有限公司 电机轴组件、电机总成和车辆

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JP2003083824A (ja) * 2001-09-12 2003-03-19 Kawatetsu Advantech Co Ltd トルク計
CN1799934A (zh) * 2005-01-07 2006-07-12 株式会社明电舍 电动助力式自行车和位置检测用磁铁的磁化方法
CN202393540U (zh) * 2011-09-29 2012-08-22 陆永刚 一种与电机合为一体的电动自行车力矩传感器
CN204736987U (zh) * 2015-02-13 2015-11-04 昆山攀登变频电子科技有限公司 电动车脚助踩速度测量装置
CN106953470A (zh) * 2017-05-10 2017-07-14 昆山攀登电子科技有限公司 一种电动车力矩感应测量式电机

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