CN103879505B - Electric bicycle motor - Google Patents
Electric bicycle motor Download PDFInfo
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- CN103879505B CN103879505B CN201410046902.9A CN201410046902A CN103879505B CN 103879505 B CN103879505 B CN 103879505B CN 201410046902 A CN201410046902 A CN 201410046902A CN 103879505 B CN103879505 B CN 103879505B
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Abstract
The invention discloses a kind of electric bicycle motor, it comprises the motor connection pipe be fixedly located in bicycle five-pipe, the casing be connected as a single entity with described motor connection pipe and support, the axis in described motor connection pipe is assemblied in by bearing rotary, be sheathed on the chain wheel on axis, and to be enclosed within axis and the axle sleeve of circumferential deformation can be produced when it is subject to circumferential twisting resistance, one end of described axle sleeve is relative with axis fixing, the other end of axle sleeve is relative with chain wheel fixing, the tube wall of described axle sleeve along the circumferential direction offers non-closed otch, the side of this otch is fixed with moment sensing magnet steel, opposite side is fixed with the torque sensor corresponding with described moment sensing magnet steel, the torque signals output line of described torque sensor is connected with electric machine controller through an outgoing line device.This electric bicycle electric machine structure of the present invention is simple, the light and handy and stable performance of profile.
Description
Technical field
The present invention relates to a kind of electric bicycle motor, this motor can be arranged on ordinary bicycle.
Background technology
The shortcomings such as existing electric bicycle motor ubiquity complex structure, profile are huge.The pig-tail wire of the moment sensor also had is that to draw casing by current colector outside, and current colector adopts the frame mode of slip ring and carbon brush or other contact part dynamic Contacts, contact part or can produce cliding friction between carbon brush and slip ring during use.Because be point cantact between contact part and slip ring, area of contact is very little, and pressure is comparatively large, and therefore after long-time use, slip ring is easy to be scratched.And be difficult to ensure the contact stabilization between contact part and slip ring, this directly affects the stability of the moment sensing signal that moment sensor sends.
Summary of the invention
The present invention seeks to: for the problems referred to above, provide that a kind of structure is simple, the light and handy and electric bicycle motor of stable performance of profile.
Technical scheme of the present invention is: a kind of electric bicycle motor, it comprises the motor connection pipe be fixedly located in bicycle five-pipe, the casing be connected as a single entity with described motor connection pipe and support, the axis in described motor connection pipe is assemblied in by bearing rotary, be sheathed on the chain wheel on axis, and to be enclosed within axis and the axle sleeve of circumferential deformation can be produced when it is subject to circumferential twisting resistance, one end of described axle sleeve is relative with axis fixing, the other end of axle sleeve is relative with chain wheel fixing, the tube wall of described axle sleeve along the circumferential direction offers non-closed otch, the side of this otch is fixed with moment sensing magnet steel, opposite side is fixed with the torque sensor corresponding with described moment sensing magnet steel, the torque signals output line of described torque sensor is connected with electric machine controller through an outgoing line device.
As preferably, described outgoing line device is by contact bonded to each other and can the dynamic slide of relative sliding and quiet slide form, wherein dynamic slide and described axle sleeve are fixed, quiet slide and described support are fixed, the torque signals output line of described torque sensor is connected with dynamic slide, and described quiet slide is connected by torque signals pig-tail wire with between described electric machine controller.
As preferably, the torque signals output line of described torque sensor and the torque signals pig-tail wire between described quiet slide and electric machine controller respectively have two; Described dynamic slide is made up of the dynamic slide inner ring be connected as a single entity and dynamic slide outer shroud, described quiet slide is made up of the quiet slide inner ring be connected as a single entity and quiet slide outer shroud, wherein dynamic slide inner ring and the moving contact of quiet slide inner ring, dynamic slide outer shroud and the moving contact of quiet slide outer shroud; Two described torque signals output lines are connected with dynamic slide outer shroud with described dynamic slide inner ring respectively, and two described torque signals pig-tail wires are connected with quiet slide outer shroud with quiet slide inner ring respectively.
As preferably, described dynamic slide is provided with velocity response magnet steel, described support is provided with the speed sensor corresponding with described velocity response magnet steel.
As preferably, described velocity response magnet steel has 20, roundedly on described dynamic slide is uniformly distributed.
As preferably, also comprise and be located at stators and rotators in motor casing and the motor shaft tooth fixing with rotor, described motor shaft tooth is in transmission connection by gear reduction and described chain wheel.
As preferably, described gear reduction comprises and the intermeshing nylon gear of described motor shaft tooth, the miniature gears be coaxially connected with nylon gear and big gear wheel intermeshing with described miniature gears, and described big gear wheel and chain wheel are fixed.
As preferably, the first unilateral bearing is provided with between described big gear wheel and axle sleeve, described first unilateral bearing comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, and wherein outside race and described big gear wheel are fixed, and bearing inner ring and sleeve end are fixed.
As preferably, the second unilateral bearing is provided with between described miniature gears and nylon gear, described second unilateral bearing comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, and wherein outside race and described nylon gear are fixed, and bearing inner ring and miniature gears are fixed.
Advantage of the present invention is:
1, this Electrical Bicycle of the present invention is out of shape by stressed rear generation of the axle sleeve be installed between axis and chain wheel, and then the relative position of moment sensing magnet steel and torque sensor is changed, and then induce axis Moment size, moment transmission puts in place, because be the structure of integral type, so can not exist moment more weak time induced signal shakiness defect, but high sensitivity and the high precision of induced signal can be guaranteed all the time.
2, the outgoing line device in the present invention adopts the dynamic slide of contact bonded to each other and quiet slide carriage structure, dynamic slide and quiet slide contact owing to can remain to fit tightly in the process relatively rotated, area of contact is larger, pressure is less, so conduction is reliable, stable signal transmission, frictional loss is also little.
3, this Electrical Bicycle of the present invention can detect moment and the speed of axis simultaneously, thus after the rotating speed size enabling electric machine controller consider axis and moment size, controls the operational factor of motor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the integral structure schematic diagram of electric bicycle motor in the embodiment of the present invention;
Fig. 2 is the local structure schematic diagram of electric bicycle motor in inventive embodiments;
Fig. 3 is the sectional structure schematic diagram of inventive embodiments bottom bracket axle;
Fig. 4 is the planar structure schematic diagram of embodiment of the present invention bottom bracket axle;
Wherein: 1-axis, 2-chain wheel, 3-axle sleeve, 301-otch, 4-moment sensing magnet steel, 5-torque sensor, 6-moves slide, 601-moves slide inner ring, 602-moves slide outer shroud, the quiet slide of 7-, 701-moves slide inner ring, the quiet slide outer shroud of 702-, 8-bearing, 9-torque signals output line, 10-torque signals pig-tail wire, 11-casing, 12-stator, 13-rotor, 14-motor shaft tooth, 15-nylon gear, 16-miniature gears, 17-big gear wheel, 18-first unilateral bearing, 19-second unilateral bearing, 20-support, 21-velocity response magnet steel, 22-speed sensor, 23-spline, 24-motor connection pipe, 25-jam nut, 26-electric machine controller, 27-brace panel, 28-adapter plate.
Detailed description of the invention
Fig. 1 ~ Fig. 4 illustrates a specific embodiment of this electric bicycle motor of the present invention, and it comprises casing 11, support 20 and motor connection pipe 24, and casing 11 and support 20 are all connected as a single entity with motor connection pipe 24.Motor connection pipe 24 one end is shaped with outside thread, during assembling, motor connection pipe 24 is located in bicycle five-pipe (not shown in FIG.), and make the thread end of motor connection pipe 24 stretch out outside Five-way tube, then on the outside thread of motor connection pipe 24, lock jam nut 25, thus motor connection pipe 24 and bicycle five-pipe are tightly fixed together.In order to ensure the Joint strenght between casing 11 and Five-way tube, this example at casing 11, be connected with one piece of brace panel 27 between motor connection pipe 24 and Five-way tube, this brace panel 27 one end is by screw locking on casing 11, and the other end to be enclosed within motor connection pipe 24 and to be tightly pressed in Five-way tube end by described jam nut 25.
Rotated by bearing 8 in described motor connection pipe 24 and be equipped with axis 1, on this axis 1, cover has chain wheel 2, during practical application, is provided with driving chain between this chain wheel 2 and bicycle rear chain drum.On described axis 1, also cover has an axle sleeve 3, can produce circumferential deformation when this axle sleeve 3 is subject to circumferential twisting resistance.One end of axle sleeve 3 is relative with axis 1 fixing by spline 23, and the other end is relative with chain wheel 2 fixing.The tube wall of described axle sleeve 3 along the circumferential direction offers non-closed otch 301, the side of this otch 301 is fixed with moment sensing magnet steel 4, opposite side is fixed with the torque sensor 5 corresponding with described moment sensing magnet steel, this torque sensor 5 is Hall torque sensor, is provided with Hall element in it.The torque signals output line 9 of described torque sensor 5 is connected with electric machine controller 26 through an outgoing line device.During practical application, at axis 1 two ends, crank need be installed, crank be installed foot-operated.
When cycling person tramp with one's feet dynamic pedal drive axis 1 rotate time, the twisting resistance that axis 1 is subject to passes to axle sleeve 3 left end in FIG by spline 23, circumferential torsional deflection is there is in axle sleeve 3 after being subject to twisting resistance, thus the relative position between described moment sensing magnet steel 4 and torque sensor 5 is changed, and then make torque sensor 5 sense this torque signals and this torque signals is passed to electric machine controller 26 by outgoing line device, then process the operational factor of rear adjustment motor by electric machine controller 26.It is larger that bicyclist steps on foot-operated strength, and the twisting resistance that axle sleeve 3 is subject to is larger, and the deflection of axle sleeve 3 is larger, and the torque signals that torque sensor 5 senses is larger).
Described outgoing line device in the present embodiment have employed one structure very cleverly, it by contact bonded to each other and can the dynamic slide 6 of relative sliding and quiet slide 7 form, wherein dynamic slide 6 is fixedly connected on described axle sleeve 3 end by adapter plate 28, quiet slide 7 is fixed with described support 20, the torque signals output line of described torque sensor 5 is connected with dynamic slide 6, and described quiet slide 7 is connected by torque signals pig-tail wire 10 with between described electric machine controller.
When axle sleeve 3 rotates, the dynamic slide 6 fixing with axle sleeve 3 will rotate with axle sleeve 3, quiet slide 7 be then fixed on support 20 with cycle frame geo-stationary, dynamicly like this relatively rotate between slide 6 and quiet slide 7 and remain laminating contact, thus the torque signals that torque sensor 5 is sensed successively through torque signals output line 9, dynamic slide 6, quiet slide 7 and torque signals pig-tail wire 10 is stable flows to electric machine controller 26.Owing to being face contact between dynamic slide 6 and quiet slide 7, area of contact is comparatively large, and pressure is less, so conduction is reliable, stable signal transmission, frictional loss is also little.
In the present embodiment, the torque signals output line 9 of described torque sensor 5 and the torque signals pig-tail wire 10 between described quiet slide 7 and electric machine controller are respectively two.Accordingly, described dynamic slide 6 and quiet slide 7 have been arranged respectively to following structure by this example: dynamic slide 6 is made up of the dynamic slide inner ring 601 be connected as a single entity and dynamic slide outer shroud 602, described quiet slide 7 is made up of the quiet slide inner ring 701 be connected as a single entity and quiet slide outer shroud 702, wherein dynamic slide inner ring 601 and the moving contact of quiet slide inner ring 701, dynamic slide outer shroud 602 and the moving contact of quiet slide outer shroud 702.Two described torque signals output lines 9 are connected with dynamic slide outer shroud 602 with described dynamic slide inner ring 601 respectively, and two described torque signals pig-tail wires 10 are connected with quiet slide outer shroud 702 with quiet slide inner ring 701 respectively.
In addition, this example is provided with velocity response magnet steel 21 on described dynamic slide 6, and described support 20 is provided with the speed sensor 22 corresponding with described velocity response magnet steel 21, and this speed sensor 5 is hall speed sensor, is provided with Hall element in it.When axis 1 drives axle sleeve 3 and dynamic slide 6 rotates, described velocity response magnet steel 21 rotates thereupon, and the speed sensor 22 be fixed on support 20 keeps static, thus make speed sensor 22 induce the rotating speed of axis 1, reach and detect the object that pin steps on speed signal.
In the present embodiment, described velocity response magnet steel 21 has 20, and these 20 velocity response magnet steel 21 are rounded on described dynamic slide 6 is uniformly distributed.Dynamic slide 6 often rotates a circle, just can export the impulse singla of 20 to speed sensor 22.
This electric bicycle motor of the present embodiment also comprises is located at stator 12 in casing 11 and rotor 13 and the motor shaft tooth 14 fixing with rotor 13, and described motor shaft tooth 14 is in transmission connection by gear reduction and described chain wheel 2.After electrical power runs, rotor 13 drive motor axle tooth 14 rotates, and motor shaft tooth 14 is rotated by gear reduction band movable chain wheel 2, and then drives bicycle to move ahead.
This example adopts internal rotor outer stator structure.
Described gear reduction can adopt various version well-known to those skilled in the art, gear reduction in the present embodiment adopts double reduction structure, its detailed construction is as follows: it comprise with the intermeshing nylon gear of described motor shaft tooth 14 15, with the coaxial miniature gears 16 that is connected of nylon gear 15 and big gear wheel 17 intermeshing with described miniature gears 16, described big gear wheel 17 is fixed with chain wheel 2.Motor shaft tooth 14 and nylon gear 15 form the first order and slow down, and the two adopts helical teeth transmission; Form the second stage with the coaxial miniature gears 16 be connected of nylon gear 15 and the big gear wheel 17 be connected with chain wheel 2 to slow down, the two adopts straight-tooth transmission.This product, by two-stage gear reduction, directly drives endless chain transmission for bicycle after the rotating speed of 3600-4500rpm is dropped to 100-125rpm." little " and " greatly " in the said miniature gears of the present invention and big gear wheel is comparatively speaking.
Axis 1 not transfer during in order to ensure that rotor 13 drives chain wheel 2 to rotate, this example has installed the first unilateral bearing 18 between axle sleeve 3 and big gear wheel 17, this first unilateral bearing 18 comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, wherein outside race and described big gear wheel 17 are fixed, and bearing inner ring and axle sleeve 3 end winding support.Visible, chain wheel 2 is not be connected directly between on axis 1, and make to be connected with axis 1 by big gear wheel 17, first unilateral bearing 18 and axle sleeve 3.When electrical power drives rotor 13 to rotate, inner ring and the outer ring of the first unilateral bearing 18 are in released state, can relatively rotate, and axle sleeve 3 and axis 1 would not follow pedal to rotate.And when manpower is ridden, as long as riding speed exceedes electrically operated speed (when pure manpower is ridden, electric drive speed is zero), the Internal and external cycle of the first unilateral bearing 1 will be in the state (one-way locking) of conjunction, can normally as ordinary bicycle ride equally.
For alleviating resistance when manpower is ridden, this example is also provided with the second unilateral bearing 19 between described miniature gears 16 and nylon gear 15, described second unilateral bearing 19 comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, wherein outside race and described nylon gear 15 are fixed, and bearing inner ring and miniature gears 16 are fixed.When manpower is ridden, chain wheel 2 can rotate with miniature gears 16 by big gear wheel, and at this moment the Internal and external cycle of the second unilateral bearing 19 is in released state, and nylon gear 15 and rotor 13 can not be driven to rotate, thus it is lighter to guarantee to ride; And when electrical power runs, as long as electrically operated speed exceedes the speed that manpower is ridden, the second unilateral bearing 19 will be in the state of conjunction, thus ensure that electrical drive power can pass to chain wheel 2.And this example is also provided with the ball bearing of main shaft (in figure do not mark) coaxially arranged with the second unilateral bearing 19 between miniature gears 16 and nylon gear 15, thus be that the second unilateral bearing 19 shares a part of diametral load.
Certainly, above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (8)
1. an electric bicycle motor, it is characterized in that: it comprises the motor connection pipe (24) be fixedly located in bicycle five-pipe, the casing (11) be connected as a single entity with described motor connection pipe (24) and support (20), the axis (1) be assemblied in described motor connection pipe (24) is rotated by bearing (8), be sheathed on the chain wheel (2) on axis (1), and it is upper and can produce the axle sleeve (3) of circumferential deformation when it is subject to circumferential twisting resistance to be enclosed within axis (1), one end of described axle sleeve (3) is relative fixing with axis (1), the other end of axle sleeve (3) is relative fixing with chain wheel (2), the tube wall of described axle sleeve (3) along the circumferential direction offers non-closed otch (301), the side of this otch (301) is fixed with moment sensing magnet steel (4), opposite side is fixed with the torque sensor (5) corresponding with described moment sensing magnet steel, the torque signals output line (9) of described torque sensor (5) is connected with electric machine controller (26) through an outgoing line device,
Described outgoing line device is by contact bonded to each other and can the dynamic slide (6) of relative sliding and quiet slide (7) form, wherein dynamic slide (6) is fixed with described axle sleeve (3), quiet slide (7) is fixed with described support (20), the torque signals output line of described torque sensor (5) is connected with dynamic slide (6), and described quiet slide (7) is connected by torque signals pig-tail wire (10) with between described electric machine controller.
2. electric bicycle motor according to claim 1, is characterized in that: the torque signals output line (9) of described torque sensor (5) and the torque signals pig-tail wire (10) between described quiet slide (7) and electric machine controller respectively have two; Described dynamic slide (6) is made up of the dynamic slide inner ring (601) be connected as a single entity and dynamic slide outer shroud (602), described quiet slide (7) is made up of the quiet slide inner ring (701) be connected as a single entity and quiet slide outer shroud (702), wherein dynamic slide inner ring (601) and the moving contact of quiet slide inner ring (701), dynamic slide outer shroud (602) and the moving contact of quiet slide outer shroud (702); Two described torque signals output lines (9) are connected with dynamic slide outer shroud (602) with described dynamic slide inner ring (601) respectively, and two described torque signals pig-tail wires (10) are connected with quiet slide outer shroud (702) with quiet slide inner ring (701) respectively.
3. electric bicycle motor according to claim 1, it is characterized in that: described dynamic slide (6) is provided with velocity response magnet steel (21), described support (20) is provided with the speed sensor (22) corresponding with described velocity response magnet steel (21).
4. electric bicycle motor according to claim 3, is characterized in that: described velocity response magnet steel (21) has 20, goes up rounded being uniformly distributed described dynamic slide (6).
5. electric bicycle motor according to claim 1, it is characterized in that: also comprise and be located at stator (12) in motor casing (11) and rotor (13) and the motor shaft tooth (14) fixing with rotor (13), described motor shaft tooth (14) is in transmission connection by gear reduction and described chain wheel (2).
6. electric bicycle motor according to claim 5, it is characterized in that: described gear reduction comprise with the intermeshing nylon gear of described motor shaft tooth (14) (15), with the coaxial miniature gears (16) that is connected of nylon gear (15) and with described miniature gears (16) intermeshing big gear wheel (17), described big gear wheel (17) is fixed with chain wheel (2).
7. electric bicycle motor according to claim 6, it is characterized in that: between described big gear wheel (17) and axle sleeve (3), be provided with the first unilateral bearing (18), described first unilateral bearing (18) comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, wherein outside race and described big gear wheel (17) are fixed, and bearing inner ring and axle sleeve (3) end winding support.
8. electric bicycle motor according to claim 6, it is characterized in that: between described miniature gears (16) and nylon gear (15), be provided with the second unilateral bearing (19), described second unilateral bearing (19) comprises bearing inner ring and the outside race with this bearing inner ring one-way locking, wherein outside race and described nylon gear (15) are fixed, and bearing inner ring and miniature gears (16) are fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410046902.9A CN103879505B (en) | 2014-02-11 | 2014-02-11 | Electric bicycle motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410046902.9A CN103879505B (en) | 2014-02-11 | 2014-02-11 | Electric bicycle motor |
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| CN103879505A CN103879505A (en) | 2014-06-25 |
| CN103879505B true CN103879505B (en) | 2016-04-20 |
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| CN201410046902.9A Active CN103879505B (en) | 2014-02-11 | 2014-02-11 | Electric bicycle motor |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879506B (en) * | 2014-02-11 | 2016-01-20 | 苏州工业园区同盛车业有限公司 | Electrical bicycle middle shaft moment sensor |
| CN104260818A (en) * | 2014-09-25 | 2015-01-07 | 苏州工业园区同盛车业有限公司 | Middle-mounted motor of electric bicycle and moment sensing device |
| CN104276251B (en) * | 2014-10-31 | 2017-05-03 | 太仓市荣驰电机有限公司 | Torque sensing system for middle shaft of electric vehicle |
| CN106143777A (en) * | 2015-04-22 | 2016-11-23 | 苏州赛诺伊电动科技有限公司 | A kind of Moped Scooter built-in motor and moment measuring device thereof |
| WO2016205974A1 (en) * | 2015-06-25 | 2016-12-29 | 太仓市荣驰电机有限公司 | Electric bicycle having integrated battery and motor |
| CN105896831A (en) * | 2016-05-19 | 2016-08-24 | 北京轻客智能科技有限责任公司 | Torsion induction motor |
| CN110015375A (en) * | 2019-04-28 | 2019-07-16 | 苏州力矩优行智能科技有限公司 | A kind of improved electric vehicle using motor built-in motor |
| CN110525572A (en) * | 2019-06-21 | 2019-12-03 | 卧龙电气驱动集团股份有限公司 | A kind of secondary transmission vehicle using motor built-in motor |
| CN110220620A (en) * | 2019-07-12 | 2019-09-10 | 太仓市悦博电动科技有限公司 | A kind of torsion sensor of built-in motor |
| CN112109840A (en) * | 2020-08-14 | 2020-12-22 | 苏州力矩优行智能科技有限公司 | Middle motor of power-assisted bicycle |
| CN112572683A (en) * | 2020-12-09 | 2021-03-30 | 宁波麦思动力系统有限公司 | Bicycle torque transmission mechanism and system and electric power-assisted bicycle |
| TWI829485B (en) * | 2022-12-23 | 2024-01-11 | 賴士豪 | Torque sensing device for electric assisted bicycle |
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| CN203780726U (en) * | 2014-02-11 | 2014-08-20 | 苏州工业园区同盛车业有限公司 | Built-in motor of electric bicycle |
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| JP3645964B2 (en) * | 1996-05-13 | 2005-05-11 | 本田技研工業株式会社 | Torque transmission device for electrically assisted vehicle |
| DE102007062156A1 (en) * | 2007-12-21 | 2009-06-25 | Schaeffler Kg | Bottom bracket with torque sensors |
| CN201400282Y (en) * | 2009-05-12 | 2010-02-10 | 王新泉 | Electric bicycle with central-shaft motor |
| CN103085932B (en) * | 2013-02-07 | 2015-01-28 | 苏州八方电机科技有限公司 | Electric bicycle center shaft force moment sensing device |
| CN203410587U (en) * | 2013-09-04 | 2014-01-29 | 苏州八方电机科技有限公司 | Five-way tube fixing device for motor of electric bicycle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203780726U (en) * | 2014-02-11 | 2014-08-20 | 苏州工业园区同盛车业有限公司 | Built-in motor of electric bicycle |
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Effective date of registration: 20200527 Address after: 215000 no.1875-8, Tongda Road, Guoxiang street, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Tongsheng Electric Appliance Co., Ltd Address before: 215124, Tongda Road, Jiangsu, Suzhou, 1875-8 Patentee before: Suzhou Industrial Park Tongsheng Bicycle Co.,Ltd. |