CN107054542A - Wheel hub motor with torque sensing function and the electric bicycle using the motor - Google Patents
Wheel hub motor with torque sensing function and the electric bicycle using the motor Download PDFInfo
- Publication number
- CN107054542A CN107054542A CN201710003179.XA CN201710003179A CN107054542A CN 107054542 A CN107054542 A CN 107054542A CN 201710003179 A CN201710003179 A CN 201710003179A CN 107054542 A CN107054542 A CN 107054542A
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- Prior art keywords
- wheel hub
- core
- torque
- dynamic
- sensing function
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Classifications
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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
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of wheel hub motor with torque sensing function, it includes：Wheel hub, is contained in the motor core in the wheel hub, and is coaxially fixed with the wheel hub, for the propeller shaft sleeve of Flywheel；The propeller shaft sleeve includes：Coaxially arranged jacket and inner sleeve, and be connected between the jacket and inner sleeve and circumferentially spaced distribution some dowels；The overcoat and the wheel hub fastening, the flywheel connecting structure being provided with for being fastenedly connected flywheel is put in described, put in described and torque inductive magnetic steel is fixedly installed, signal output plate is fixedly installed in outer put, and the Hall element corresponding with the torque inductive magnetic steel is provided with the signal output plate.
Description
Technical field
The present invention relates to electric bicycle field, and in particular to a kind of electric bicycle and its wheel hub motor.
Background technology
Electric bicycle due to its it is brisk laborsaving and pollution-free the features such as, just increasingly promoted the use in countries in the world.Tradition
Electric bicycle all with handle come speed governing, also useful speed sensing device carrys out the so-called intelligent of the power output of controlled motor
The characteristics of electric bicycle, this kind of Intelligent electric bicycle is that level land is ridden very easily, but upward slope is caused high effort for.Using power
Then just in contrast, the power output very little of motor, can allow people to feel to the electric bicycle of square sensing device when level land is ridden
Feel easily very power saving again of riding, and exportable larger electric current makes climbing become very laborsaving when going up a slope, and is a kind of real energy
People is allowed to experience the electric bicycle of the natural fusion of people and machine.
Bicycle middle shaft position is used in the moment sensor of existing electric bicycle more, or on chain wheel, either
With on built-in motor, also have precedent of the moment sensing on wheel hub motor in early days at home, but because designing unreasonable, property
Can be unstable, using effect is barely satisfactory without popularizing.
The content of the invention
The present invention seeks to：In view of the above-mentioned problems, a kind of wheel hub motor with torque sensing function is provided, while providing one
Plant the electric bicycle using this wheel hub motor.
The technical scheme is that：
A kind of wheel hub motor with torque sensing function, including：
Wheel hub,
The motor core in the wheel hub is contained in, and
Coaxially fixed with the wheel hub, for the propeller shaft sleeve of Flywheel；
The propeller shaft sleeve includes：
Coaxially arranged jacket and inner sleeve, and
Be connected between the jacket and inner sleeve and circumferentially spaced distribution some dowels；
The overcoat and the wheel hub fastening, the interior flywheel being provided with for being fastenedly connected flywheel that puts connect knot
Torque inductive magnetic steel is fixedly installed in structure, interior put, and signal output plate is fixedly installed in outer put, on the signal output plate
It is provided with the Hall element corresponding with the torque inductive magnetic steel.
Put in described and be provided with two torque inductive magnetic steels altogether, and this two torque inductive magnetic steels are tight side by side
Arrangement is suffered, while the opposite polarity of this two torque inductive magnetic steel radially-outer surfaces.
The torque inductive magnetic steel and the signal output plate are arranged between adjacent two dowels.
Also include the dynamic seat and stationary seat coaxially arranged with the propeller shaft sleeve, wherein dynamic seat is fixed on propeller shaft sleeve, move
Vice-side winding is fixed with seat；Stationary seat is movably connected on dynamic seat and can rotated around the axis of dynamic seat, fixed on stationary seat
There are primary side winding and signal receiver board, the former and deputy side winding collectively constitutes an isolating transformer, wherein primary side winding and signal
Exchange electric generator that receiver board is provided with electrical connection, and signal receiver board is provided with lead-out wire, and vice-side winding then with signal
Output board is electrically connected.The vice-side winding by the annular being arranged on the dynamic seat dynamic magnetic core and be fixed on the dynamic magnetic core
In moving winding constitute, the primary side winding by the annular being arranged on the stationary seat magnetostatic core and to be fixed on this magnetostatic
Dead line circle in core is constituted；The dynamic magnetic core and magnetostatic core laminating contact and can relatively rotate, and with the moving winding and quiet
Coil together constitutes with isolating transformer；The dead line circle is equivalent to the primary coil of isolating transformer, and it is received with the signal
The exchange electric generator electrical connection set on plate；And moving winding is equivalent to the secondary coil of isolating transformer, itself and the signal
Output board is electrically connected.
The axial cross section of the dynamic magnetic core and magnetostatic core is in C fonts, and the two is bonded to each other and constituting one has mouth word
The loop configuration of type axial cross section, moving winding and the dead line circle is housed in by having that the dynamic magnetic core and magnetostatic core are constituted
In the loop configuration of hollow axial cross section.
Slip film is pasted with the laminating contact surface of the dynamic magnetic core and magnetostatic core.
The dynamic magnetic core and the magnetostatic core are FERRITE CORE.
It is provided with the stationary seat for being relatively fixed in motor stator, with prevent that the stationary seat is made to circumferentially rotate 3
Buckle.
A kind of electric bicycle, includes the electric bicycle hub motor of structure.
It is an advantage of the invention that：
1st, this electric bicycle hub motor that the present invention is provided, it is by the propeller shaft sleeve specially designed and located at it
On magnet steel and Hall element measure the torque that people's pedal power is put on crank, sensitivity of measurement is high；While the present invention is again
Specially devise a kind of former and deputy winding to be divided into stationary seat, move the isolating transformer on seat to export the torque signals measured, utilize
The transformer principle, is dexterously solved the problem of rotating signal convert to static signal, and stable signal transmission is good, greatly
The big service behaviour and measurement accuracy for improving entirety of the invention.
2nd, this electric bicycle hub motor that the present invention is provided, during specific works, moves seat with chain wheel and drive shaft
The rotation of set and rotate, and stationary seat then due to 3 buckles effect will not transfer, hence in so that being connect with the signal that stationary seat is mutually fixed
The lead-out wire received on plate can be remained stationary as, and solve the problem of the electric signal of the electric signal convert to static by rotating.
3rd, this electric bicycle hub motor that provides of the present invention, its electric machine controller according to foot pedal and can lead to
Cross crank, sprocket wheel, chain, flywheel and be delivered to the torque size of wheel hub and carry out the operational factor of controlled motor, so as to perfectly realize
The process of man-machine harmony
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the explosive view of wheel hub motor in the embodiment of the present invention；
Fig. 2 is the stereogram of moment sensing part in this wheel hub motor of the embodiment of the present invention；
Fig. 3 is the front view of moment sensing part in this wheel hub motor of the embodiment of the present invention；
Wherein：Outside 1- wheel hubs, 1a- hub shells, 1b- wheel hub right end caps, 1c- wheel hub left end caps, 2- propeller shaft sleeves, 2a-
Set, 2b- inner sleeves, 2c- dowels, 3- torque inductive magnetic steels, 4- signal output plates, 5- moves seat, 6- stationary seats, 7- signal receiver boards,
8- lead-out wires, 9- Hall elements, 10- moves magnetic core, 11- moving windings, the magnetostatic cores of 12-, 13- dead line circles, 14- slip films.
Embodiment
Fig. 1~Fig. 3 shows a preferred embodiment of this wheel hub motor with torque sensing function of the present invention, its
Including wheel hub 1, motor core and propeller shaft sleeve 2, wherein motor core is arranged at hub interior, and propeller shaft sleeve 2 and wheel hub 1 are coaxial
It is fixed.
During practical application, wheel hub 1 is arranged on the trailing wheel of bicycle, and it is rotatably connected on cycle frame, bicycle
Flywheel be coaxially fixed on propeller shaft sleeve 2.Wheel hub 1 is by six by the hub shell 1a and wheel hub right end cap 1b in Fig. 1
Formed by screw lock is fixed together.Under electric model, motor core is powered and drives wheel hub 1 to rotate, and then with motor-car
Move ahead；Under manpower ride mode, bicyclist is rotated by trampling crank by chain-driving chain wheel, and chain wheel passes through driving again
Axle sleeve 2 drives wheel hub 1 to rotate, and then drives vehicle forward.
The present embodiment it is critical that the propeller shaft sleeve 2 include overcoat 2a, inner sleeve 2b and dowel 2c, wherein, overcoat
2a and inner sleeve 2b are coaxially arranged, and overcoat 2a is fastened by the wheel hub right end cap 1b of three screws and wheel hub 1, is set on the inner sleeve 2b
It is equipped with the flywheel connecting structure (such as screw thread) for being fastenedly connected flywheel, dowel 2c at least two, the present embodiment, which has altogether, to be set
Three have been put, and has been uniformly distributed.Wherein, moment inductive magnetic steel 3 is fixedly installed on the inner sleeve 2b, and it is fixed on overcoat 2a
It is provided with and the Hall member corresponding with the torque inductive magnetic steel 3 is provided with signal output plate 4, and the signal output plate 4
Part 9.Signal output plate 4 is connected by signal transmitting apparatus with the control of motor.
In practical application, when people steps on bicycle pedals and by chain band flywheel turns, flywheel drives fasten therewith again
Inner sleeve 2b rotate, inner sleeve 2b passes through dowel 2c and drives overcoat 2a to rotate again.In inner sleeve 2b torsional moment is transmitted to overcoat 2a
During, circumferential torsional deformation can occur for dowel 2c, and make it that circumferential misalignment occurs for inner sleeve 2b and overcoat 2b, so power
The relative position of square inductive magnetic steel 3 and Hall element 9 changes, and Hall element 9 senses that magnetic field changes.Chain wheel by
Torsional moment it is bigger, Hall element 9 sense magnetic variation signal it is stronger, so bicyclist couple can be induced by Hall element 9
Foot-operated pedal force size, and then adjust by electric machine controller the power output of the motor.
In order to improve induction sensitivity of the Hall element 9 to magnetic field, the present embodiment is provided with altogether on the inner sleeve 2b
Two torque inductive magnetic steels 3, this two torque inductive magnetic steels 3 adjacent arrangement, and this two torque inductive magnetic steels 3 side by side
The opposite polarity of radially-outer surface, forms a magnetic field positive by bearing so between this two two torque inductive magnetic steels 3
Linear change area.And above-mentioned Hall element 9 is linear hall element (also referred to as linear Hall integrated circuit), linear Hall member
The sensitive surface of part faces this two torque inductive magnetic steels 3.
In addition, the arrangement to above-mentioned signal output plate 4 and torque inductive magnetic steel 3, and reduce the wheel hub as far as possible for convenience
The profile of motor, the present embodiment by the torque inductive magnetic steel 3 and signal output plate 4 be arranged in adjacent two dowel 2c it
Between space.
Above-mentioned signal transmitting apparatus uses this structure type：It includes the dynamic seat 5 coaxially arranged with the propeller shaft sleeve 2
With stationary seat 6, it is working of plastics to move seat 5 and stationary seat 6.Wherein move seat 5 to be fixed on propeller shaft sleeve 2, vice-side winding is fixed with thereon.
Stationary seat 6 is movably connected on dynamic seat 5 and can rotated around the axis of dynamic seat 5, and primary side winding and signal are fixed with stationary seat 6
Receiver board 7.The former and deputy side winding collectively constitutes an isolating transformer, and wherein primary side winding is provided with signal receiver board 7
Exchange electric generator electrical connection, and signal receiver board 7 provided with three lead-out wires 8 (be respectively power supply+, power supply-, signal goes out),
This 3 lead-out wires are connected with controller, and vice-side winding is then electrically connected with signal output plate 4.
So-called " stationary seat ", refers to that it is not rotated in practical application with wheel hub, but is kept with cycle frame
Geo-stationary.Realized specifically by following structure type：3 buckles are provided with stationary seat 6, buckle 6a is coaxially stuck in
On the stator core of motor, so as to serve the purpose for preventing stationary seat 6 from rotating.
In this example, the vice-side winding by the annular being arranged on the dynamic seat 5 dynamic magnetic core 10 and be fixed on this
Moving winding 11 in dynamic magnetic core 10 is constituted.The primary side winding by the magnetostatic core 12 for the annular being arranged on the stationary seat 6 with
And the dead line circle 13 being fixed in the magnetostatic core 12 is constituted.Dynamic magnetic core 10 and magnetostatic core 12 laminating is contacted and relative can turned
It is dynamic, and together constitute with isolating transformer with the moving winding 11 and dead line circle 13.Original of the dead line circle 13 equivalent to isolating transformer
Sideline is enclosed, and it is electrically connected with the electric generator that exchanges set on signal receiver board 7.Pair of the moving winding 11 equivalent to isolating transformer
Sideline is enclosed, and it is electrically connected with signal output plate 4.The dynamic magnetic core 10 and magnetostatic core 12 are FERRITE CORE.
The axial cross section of the dynamic magnetic core 10 and magnetostatic core 12 is in C fonts (having an opening surface), and the two is bonded to each other
And a loop configuration with hollow axial cross section is constituted, the moving winding 11 and dead line circle 13 are housed in by moving magnetic core
10 and magnetostatic core 12 constitute the loop configuration with hollow axial cross section in.
Because the dynamic magnetic core 10 and magnetostatic core 12 can produce sliding friction because of relatively rotating in actual applications,
In order to avoid dynamic magnetic core 10 and magnetostatic core 12 reduce the service life of the two because directly contacting friction, this example is in the dynamic He of magnetic core 10
Slip film 14 is pasted with the laminating contact surface of magnetostatic core 12, the slip film 14 has two panels, a piece of to be attached on dynamic magnetic core 10, separately
A piece of to be attached on magnetostatic core 12, so that magnetostatic core 12 is not directly contacted with, the tool of slip film 14 has good wearability.
Therefore, the opening surface of dynamic magnetic core 10 and magnetostatic core 12 fits together and constitutes a closing structure, therefore quiet
Coil 13 and moving winding 11 have been in the magnetic circuit of a closure, thus equivalent into an isolating transformer, dead line circle
13 be the equal of primary transformer coil, and moving winding 11 is the equal of then secondary transformer.In practical application, signal
The exchange electric generator installed on receiver board 7 is powered to the primary coil (dead line circle 13) of transformer, so that dead line circle 13
Obtain a certain size alternating current, due to isolating transformer secondary coil (moving winding 11) connect be variable load, so
The electric current of its primary side side can change with the change of secondary side variable load, and the change of this electric current is passed through into signal receiver board
7 progress processing is converted into voltage output and completes the detection to propeller shaft sleeve Moment size.
Because the present embodiment is in specific works, dynamic seat is rotated with the rotation of chain wheel and propeller shaft sleeve, and stationary seat is then
Under the positioning of 3 buckles will not transfer, hence in so that the lead-out wire on the signal receiver board 7 mutually fixed with stationary seat can be kept
It is motionless, solve the problem of the electric signal of the electric signal convert to static by rotating.
It is by glue or two-sided glue sticking between the dynamic magnetic core and dynamic seat in this example.It is fixed to be formed on magnetostatic core
Position breach, forms corresponding locating piece on stationary seat, locating notch is engaged with locating piece, so that it is guaranteed that install positioning with
Prevent magnetostatic core from being circumferentially rotated relative to stationary seat, elastomer, such as stage clip or waveform bullet are provided between stationary seat and motor stator
Reed, it is to ensure that magnetostatic core is close together all the time with dynamic magnetic core that it, which is acted on,.
Above-mentioned dynamic seat 5 and stationary seat 6 is working of plastics, and signal output plate 4 and signal receiver board 7 are PCB plates.
Certainly, the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to make people much of that
Solution present disclosure is simultaneously implemented according to this, and it is not intended to limit the scope of the present invention.It is all according to major technique of the present invention
Equivalent transformation or modification that the Spirit Essence of scheme is done, should all be included within the scope of the present invention.
Claims (10)
1. a kind of wheel hub motor with torque sensing function, including：
Wheel hub (1),
The motor core in the wheel hub is contained in, and
Coaxially fixed with the wheel hub, for the propeller shaft sleeve (2) of Flywheel；
Characterized in that, the propeller shaft sleeve (2) includes：
Coaxially arranged overcoat (2a) and inner sleeve (2b), and
Be connected between the overcoat (2a) and inner sleeve (2b) and circumferentially spaced distribution some dowels (2c)；
The overcoat (2a) is fastened with the wheel hub (1), and the flywheel for being fastenedly connected flywheel is provided with the inner sleeve (2b)
It is fixedly installed on attachment structure, the inner sleeve (2b) on torque inductive magnetic steel (3), the overcoat (2a) and signal output is fixedly installed
The Hall element (9) corresponding with the torque inductive magnetic steel (3) is provided with plate (4), the signal output plate (4).
2. the wheel hub motor according to claim 1 with torque sensing function, it is characterised in that one on the inner sleeve (2b)
Two torque inductive magnetic steels (3), and this two torque inductive magnetic steels (3) adjacent arrangement arranged side by side are provided with altogether, while this
The opposite polarity of individual two torque inductive magnetic steels (3) radially-outer surface.
3. the wheel hub motor according to claim 2 with torque sensing function, it is characterised in that the torque inductive magnetic steel
(3) it is arranged in the signal output plate (4) between adjacent two dowels (2c).
4. the wheel hub motor according to claim 1 with torque sensing function, it is characterised in that also including with the driving
Axle sleeve (2) coaxially arranged dynamic seat (5) and stationary seat (6), wherein dynamic seat (5) is fixed on propeller shaft sleeve (2), are fixed with dynamic seat
Vice-side winding；Stationary seat (6) is movably connected on dynamic seat (5) and can rotated around the axis of dynamic seat (5), solid on stationary seat (6)
Surely there are primary side winding and signal receiver board (7), the former and deputy side winding collectively constitutes an isolating transformer, wherein primary side winding
Electrically connected with the electric generator that exchanges that signal receiver board (7) is provided with, and signal receiver board (7) is provided with lead-out wire (8), and it is secondary
Side winding is then electrically connected with signal output plate (4).
5. the wheel hub motor according to claim 4 with torque sensing function, it is characterised in that the vice-side winding is by setting
Moving winding (11) structure put the dynamic magnetic core (10) of the annular on the dynamic seat (5) and be fixed in the dynamic magnetic core (10)
Into, the primary side winding is by the magnetostatic core (12) for the annular being arranged on the stationary seat (6) and is fixed on the magnetostatic core
(12) the dead line circle (13) in is constituted；The dynamic magnetic core (10) and magnetostatic core (12) laminating are contacted and can relatively rotated, and with
The moving winding (11) and dead line circle (13) together constitute with isolating transformer；The dead line circle (13) is equivalent to isolating transformer
Primary coil, it is electrically connected with the electric generator that exchanges set on the signal receiver board (9)；And moving winding (11) equivalent to every
From the secondary coil of transformer, it is electrically connected with the signal output plate (4).
6. the wheel hub motor according to claim 5 with torque sensing function, it is characterised in that the dynamic magnetic core (10) and
The axial cross section of magnetostatic core (12) is in C fonts, and the two is bonded to each other and constitutes an annular with hollow axial cross section
Structure, the moving winding (11) and dead line circle (13) are housed in by having that the dynamic magnetic core (10) and magnetostatic core (12) are constituted
In the loop configuration of hollow axial cross section.
7. the wheel hub motor according to claim 5 with torque sensing function, it is characterised in that in the dynamic magnetic core (10)
Slip film (14) is pasted with the laminating contact surface of magnetostatic core (12).
8. the wheel hub motor according to claim 5 with torque sensing function, it is characterised in that the dynamic magnetic core (10) and
The magnetostatic core (12) is FERRITE CORE.
9. the wheel hub motor according to claim 5 with torque sensing function, it is characterised in that set on the stationary seat (6)
It is equipped with for being relatively fixed in motor stator, 3 buckles circumferentially rotated with preventing the stationary seat (6) from making.
10. a kind of electric bicycle, it is characterised in that including the electric bicycle hub motor as described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003179.XA CN107054542A (en) | 2017-01-03 | 2017-01-03 | Wheel hub motor with torque sensing function and the electric bicycle using the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003179.XA CN107054542A (en) | 2017-01-03 | 2017-01-03 | Wheel hub motor with torque sensing function and the electric bicycle using the motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107054542A true CN107054542A (en) | 2017-08-18 |
Family
ID=59623358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003179.XA Pending CN107054542A (en) | 2017-01-03 | 2017-01-03 | Wheel hub motor with torque sensing function and the electric bicycle using the motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107054542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789643A (en) * | 2019-12-09 | 2020-02-14 | 苏州捷诚科技有限公司 | Central-axis wireless energy signal transmission torque sensor system |
| WO2020147370A1 (en) * | 2019-01-14 | 2020-07-23 | 昆山攀登电子科技有限公司 | Freehub torque and speed sensing device |
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| CN201834167U (en) * | 2010-10-28 | 2011-05-18 | 苏州工业园区同盛车业有限公司 | Electric bicycle torque and speed sensor |
| TWM438446U (en) * | 2012-03-22 | 2012-10-01 | Wei-Ting Lin | Non-contact torque sensing mechanism for power assisting bicycle |
| CN202508256U (en) * | 2011-12-29 | 2012-10-31 | 无锡尚格工业设计有限公司 | Butt joint type torque sensor motor |
| US20130047723A1 (en) * | 2011-08-24 | 2013-02-28 | Tacx B.V. | Input Performance Measurement System for a Bicycle |
| CN206476041U (en) * | 2017-01-03 | 2017-09-08 | 苏州工业园区同盛车业有限公司 | Wheel hub motor with torque sensing function and the electric bicycle using the motor |
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2017
- 2017-01-03 CN CN201710003179.XA patent/CN107054542A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201834167U (en) * | 2010-10-28 | 2011-05-18 | 苏州工业园区同盛车业有限公司 | Electric bicycle torque and speed sensor |
| US20130047723A1 (en) * | 2011-08-24 | 2013-02-28 | Tacx B.V. | Input Performance Measurement System for a Bicycle |
| CN202508256U (en) * | 2011-12-29 | 2012-10-31 | 无锡尚格工业设计有限公司 | Butt joint type torque sensor motor |
| TWM438446U (en) * | 2012-03-22 | 2012-10-01 | Wei-Ting Lin | Non-contact torque sensing mechanism for power assisting bicycle |
| CN206476041U (en) * | 2017-01-03 | 2017-09-08 | 苏州工业园区同盛车业有限公司 | Wheel hub motor with torque sensing function and the electric bicycle using the motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147370A1 (en) * | 2019-01-14 | 2020-07-23 | 昆山攀登电子科技有限公司 | Freehub torque and speed sensing device |
| US12104974B2 (en) | 2019-01-14 | 2024-10-01 | Kclamber Electric Technology Corp | Freehub torque and speed sensing device |
| CN110789643A (en) * | 2019-12-09 | 2020-02-14 | 苏州捷诚科技有限公司 | Central-axis wireless energy signal transmission torque sensor system |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200601 Address after: 215000 no.1875-8, Tongda Road, Guoxiang street, Wuzhong District, Suzhou City, Jiangsu Province Applicant after: Suzhou Tongsheng Electric Appliance Co.,Ltd. Address before: 215124, Tongda Road, Suzhou Industrial Park, Jiangsu, 1875-8 Applicant before: Suzhou Industrial Park Tongsheng Bicycle Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |
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| WD01 | Invention patent application deemed withdrawn after publication |