CN202661208U - Torque sensor of electric bicycle - Google Patents
Torque sensor of electric bicycle Download PDFInfo
- Publication number
- CN202661208U CN202661208U CN 201220345315 CN201220345315U CN202661208U CN 202661208 U CN202661208 U CN 202661208U CN 201220345315 CN201220345315 CN 201220345315 CN 201220345315 U CN201220345315 U CN 201220345315U CN 202661208 U CN202661208 U CN 202661208U
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- passive components
- driving part
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- ring
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Abstract
The utility model discloses a torque sensor of an electric bicycle. Driving parts and driven parts in the torque sensor are elastically connected in the circumferential direction and can relatively rotate within a certain angle. A magnetic assembly is fixedly arranged on the driving parts and can synchronously move with the driving parts. A sensing assembly is fixedly arranged on the driven parts and can synchronously move with the driven parts. The magnetic assembly comprises multiple pairs of S-N magnetic poles which are annularly arranged, each S or N magnetic pole is adjacent to one opposite magnetic pole, and one ends of the magnetic poles face the annular center. The sensing assembly can cut magnetic force lines generated by the magnetic poles in the motion process, produce eddy electric signals and output the electric signals, and the electric signals are sensed by the sensor so that the rotating speed of a motor is finally controlled by a controller. The traditional structure adopting a driving magnetic ring and a driven magnetic ring is changed, the structure of the torque sensor is simplified, and the signals are reliable and practical.
Description
Technical field
The utility model relates to a kind of sensor, relates in particular to a kind of torque sensor for electric bicycle.
Background technology
Electric bicycle in the market generally is equipped with torque sensor, is used for converting the power that the bicyclist is applied on riding to electric signal that electric bicycle controller can be identified, with the output power of control motor, realizes the power-assisted effect.The working method of present common torque sensor is: manpower scrunches foot-operated, driving gear disc crank, sensor disk and five-way axle center rotates relative to vehicle frame, and the relative vehicle frame of sensor probe maintains static, when the sensor disk is rotated, the magnetic field that magnetic pole in the disk can change, this changing magnetic field is constantly given the sensor probe signal, sensor probe passes to controller for electric vehicle after resulting signal is processed, and then controller control motor rotarily drives electric bicycle and travels.
Two parts of present common torque sensor most critical be the magnetic assembly and can with the Hall element of magnetic assembly induction, wherein the magnetic assembly generally comprises the active magnetic assembly that is installed on the gear disc crank wheel disc, with the passive magnetic assembly that is installed on the gear disc crank fluted disc, active magnetic assembly and passive magnetic assembly can relatively rotate, work as the master, thereby after passive magnetic assembly relatively rotates the magnetic field that forms between the two is changed, the magnetic field size that then is applied on the Hall element will change, thereby the moment electric signal that Hall element is produced changes, and controller is according to the size of the moment electric signal control output power of motor that changes with foot-operated rotation.But in actual use, current electric bicycle moment sensor still exists the defectives such as complex structure, reaction be unreliable.
The utility model content
In order to overcome above-mentioned technological deficiency, the utility model provides a kind of electric bicycle moment sensor, and the moment electric signal when this torque sensor is ridden for detection of the electric bicycle manpower is simple in structure, reliable and practical.
The utility model in order to solve the problems of the technologies described above the technical scheme that adopts is:
A kind of electric bicycle moment sensor, comprise the driving part that can centered by five-way middle axle, rotate, be arranged in parallel with driving part and the passive components of axial restraint, described driving part is connected with described passive components circumferencial direction elasticity and can relatively rotates certain angle, it is characterized in that: also comprise a magnetic assembly and an inductive component, described magnetic assembly is fixedly arranged on the described driving part and can be synchronized with the movement with driving part; Described inductive component is fixedly arranged on the described passive components and can be synchronized with the movement with passive components; Described magnetic assembly comprises arrange ringwise some to the S-N pole pair, wherein each S level or the adjacent magnetic pole of N level are opposite pole, and an end of described magnetic pole is towards described annular center, and inductive component can cut the magnetic line of force that described pole pair produces in motion process.
The further technical scheme of the utility model is:
Described inductive component can cut the magnetic line of force of described pole pair generation in motion process structure is: described magnetic assembly comprises an annular ring, and annular ring is along circumferentially offering groove, and even interval is installed with some pole pairs in the described groove; Described inductive component comprises a circular orientation circle, and described circular orientation circle is to extending to form flange towards driving part one side, radially inwardly is provided with on the described flange with described pole pair to conduct electricity one to one sensing chip; Annular ring is movably set in the described circular orientation circle with one heart, and described conduction sensing chip is positioned at the outer ring of described pole pair.
Described driving part is connected with described passive components circumferencial direction elasticity and the structure that can relatively rotate certain angle is: on the described passive components along circumferentially evenly offering several spring mounting holes, described driving part is provided with the installation projection corresponding with described spring mounting hole, described installation projection stretch into spring mounting hole an end and and the other end of spring mounting hole between be provided with spring; Along circumferentially being laid with several boss one, offer the perforate corresponding with described boss one on the described passive components on the described driving part, described boss one be located in the corresponding aperture and in a circumferential direction relative sliding cooperate; Together the circle spacing arranges for described installation projection and described boss.
Offer internal thread hole on the described boss one, be provided with block piece, described block piece is by stub end and have externally threaded microcephaly end and form, the little head end of described block piece wore perforate and was threaded with internal thread hole on the described boss one, and described block piece stub end cross sectional dimensions is greater than described bore size.
The structure that described magnetic assembly is fixedly arranged on the described driving part is: described driving part comprises driving gear disc and the toggle-action lever that is integral structure, offer on the described driving gear disc can with the axis pilot hole of five-way middle axle assembling, the hole wall of described axis pilot hole extends to form clamping ring towards chain one side, described clamping ring extends radially outwardly and forms boss two, and described magnetic assembly be able to be arranged on the described boss two.
The structure that described inductive component is fixedly arranged on the described passive components is: be provided with and can drive the sprocket ring that chain rotates, described sprocket ring is fixedly connected with described passive components, described sprocket ring inner ring radial inward forms some projections, described circular orientation circle is provided with groove towards chain one side surface respective protrusions place, and described projection be able to be equipped in the described groove and compress described groove.
Described sprocket ring with the structure that described passive components is fixedly connected with is: the edge circumferentially offers some through holes one on the described sprocket ring, on the described passive components along circumferentially and be positioned at place, spring mounting hole outer ring and offer through hole two, be provided with the web member group, described sprocket ring is fixedly connected with by described web member group with described passive components.
Described web member group comprises inserting rivet and sleeve, and described collet head is located between described sprocket ring and the described passive components and corresponding through hole one and through hole two, described slotting rivet was worn through hole one, sleeve and through hole two and is locked together.Described driving part (8) is gear disc crank.
Useful technique effect of the present utility model is: the driving part in this torque sensor is connected with passive components elasticity and can relatively rotates, and the magnetic assembly is fixedly arranged on the driving part and can be synchronized with the movement with driving part; Inductive component is fixedly arranged on the passive components and can be synchronized with the movement with passive components; And inductive component can cut described magnetic assembly and produce the magnetic line of force in motion process, produces the eddy current electric signal and outwards exports, and by the sensor sensing electric signal, realizes that at last controller is to the control of motor speed again.This structural change adopt mode main, passive pair of magnet ring in the traditional structure, simplified the structure of torque sensor, and signal is reliable and practical.
Description of drawings
Fig. 1 is blast structural drawing of the present utility model;
Fig. 2 is the wheel disc assembly drawing of the utility model structure;
Wherein: 1-web member group; 11-is to inserting rivet; The 12-sleeve;
The 2-sprocket ring; 21-through hole one; The 22-projection;
The 3-inductive component; 31-circular orientation circle; The 32-groove;
4-magnetic assembly; The 41-annular ring;
The 5-passive components; The 51-spring mounting hole; The 52-perforate; 53-through hole two;
The 6-spring;
The 7-block piece;
The 8-driving part; 81-installs projection; 82-boss one; The 83-driving gear disc; 831-axis pilot hole; 832-boss two; The 84-toggle-action lever;
9-is foot-operated.
Embodiment
In conjunction with Fig. 1 and Fig. 2 the utility model is described in further detail.
A kind of electric bicycle moment sensor, comprise the driving part 8 that can centered by five-way middle axle, rotate, be arranged in parallel with driving part 8 and the passive components 5 of axial restraint, described driving part 8 is connected with described passive components 5 circumferencial direction elasticity and can relatively rotates certain angle, also comprise a magnetic assembly 4 and an inductive component 3, described magnetic assembly 4 is fixedly arranged on the described driving part 8 and can be synchronized with the movement with driving part 8; Described inductive component 3 is fixedly arranged on the described passive components 5 and can be synchronized with the movement with passive components 5; Described magnetic assembly 4 comprises arrange ringwise some to the S-N pole pair, wherein each S level or the adjacent magnetic pole of N level are opposite pole, and an end of described magnetic pole is towards described annular center, and inductive component 3 can cut the magnetic line of force that described pole pair produces in motion process.
Described inductive component 3 can cut the magnetic line of force of described pole pair generation in motion process structure is: described magnetic assembly 4 comprises an annular ring 41, annular ring 41 is along circumferentially offering groove, even interval is installed with some pole pairs in the described groove, and the quantity optimum of pole pair is 6 pairs; Described inductive component 3 comprises a circular orientation circle 31, and described circular orientation circle 31 is to extending to form flange towards driving part one side, radially inwardly is provided with on the described flange with described pole pair to conduct electricity one to one sensing chip; Annular ring 41 is movably set in the described circular orientation circle 31 with one heart, and described conduction sensing chip is positioned at the outer ring of described pole pair.When the conduction sensing chip was positioned at the pole pair outer ring, when driving part 8 and passive components 5 relatively rotated, described conduction sensing chip carried out the cutting of the magnetic line of force just in the magnetic line of force scope that pole pair produces.The opening part of described groove is provided with gland bonnet, and the sealing lid adopts alumina based material to be prepared from, and can effectively realize electromagnetic screen.
Described driving part 8 is connected with described passive components 5 circumferencial direction elasticity and the structure that can relatively rotate certain angle is: on the described passive components 5 along circumferentially evenly offering several spring mounting holes 51, described driving part 8 is provided with the installation projection 81 corresponding with described spring mounting hole 51, described installation projection 81 stretch into spring mounting hole 51 an end and and the other end of spring mounting hole 51 between be provided with spring 6; Along circumferentially being laid with several boss 1, offer the perforate 52 corresponding with described boss 1 on the described passive components 5 on the described driving part 8, described boss 1 be located in the corresponding aperture 52 and in a circumferential direction relative sliding cooperate; Described installation projection 81 is arranged with the circle spacing with described boss 1.
Offer internal thread hole on the described boss 1, be provided with block piece 7, described block piece 7 is by stub end and have externally threaded microcephaly end and form, described block piece 7 little head ends wore perforate 52 and were threaded with internal thread hole on the described boss 1, and described block piece 7 stub end cross sectional dimensions are greater than described perforate 52 sizes, and the stub end of block piece 7 can prevent from throwing off when passive components 5 is connected with driving part 8 elasticity.
The structure that described magnetic assembly 4 is fixedly arranged on the described driving part 8 is: described driving part 8 comprises driving gear disc 83 and the toggle-action lever 84 that is integral structure, offer on the described driving gear disc 83 can with the axis pilot hole 831 of five-way middle axle assembling, the hole wall of described axis pilot hole 831 extends to form clamping ring towards chain one side, described clamping ring extends radially outwardly and forms boss 2 832, and described magnetic assembly 4 be able to be arranged on the described boss 2 832.
The structure that described inductive component 3 is fixedly arranged on the described passive components 5 is: be provided with and can drive the sprocket ring 2 that chain rotates, described sprocket ring 2 is fixedly connected with described passive components 5, described sprocket ring 2 inner ring radial inward form some protruding 22, described circular orientation circle 31 is provided with groove 32 towards chain one side surface respective protrusions 22 places, and described protruding 22 be able to be equipped in the described groove 32 and compress described groove 32.Because sprocket ring 2 is fixedly connected with passive components 5, sprocket ring 2 is with the motion campaign of passive components 5, therefore utilize the blocking pressuring action between the circular orientation circle 31 of sprocket ring 2 and inductive component 3, inductive component 3 is positioned on the passive components 5, so that inductive component 3 can be with passive components 5 motions.And magnetic assembly 4 is by being fixedly connected with driving part 8 on the boss 2 832 that is arranged in driving part 8.And be connected by spring 6 elasticity between driving part 8 and the passive components 5, when foot-operated 9 drive driving part 8 rotation, because the compression of spring 6, with the slip effect of boss 1 in perforate 52, passive components 5 does not temporarily rotate, therefore produce angular displacement between magnetic assembly 4 and the inductive component 3, the magnetic line of force that the conduction sensing chip cutting pole pair in the inductive component 3 produces.
Described sprocket ring 2 with the structure that described passive components 5 is fixedly connected with is: the edge circumferentially offers some through holes 1 on the described sprocket ring 2, on the described passive components 5 along circumferentially and be positioned at place, spring mounting hole 51 outer rings and offer through hole 2 53, be provided with web member group 1, described sprocket ring 2 is fixedly connected with by described web member group 1 with described passive components 5.
Described web member group 1 comprises inserting rivet 11 and sleeve 12, described sleeve 12 is located between described sprocket ring 2 and the described passive components 5 and corresponding through hole 1 and through hole 2 53, describedly wears through hole 1, sleeve 12 and through hole 2 53 and is locked together inserting rivet 11.Described driving part 8 is gear disc crank.
Claims (8)
1. electric bicycle moment sensor, comprise the driving part (8) that can centered by five-way middle axle, rotate, be arranged in parallel with driving part (8) and the passive components (5) of axial restraint, described driving part (8) is connected with described passive components (5) circumferencial direction elasticity and can relatively rotates certain angle, it is characterized in that: also comprise a magnetic assembly (4) and an inductive component (3), described magnetic assembly (4) is fixedly arranged on described driving part (8) upward and can be synchronized with the movement with driving part (8); Described inductive component (3) is fixedly arranged on described passive components (5) upward and can be synchronized with the movement with passive components (5); Described magnetic assembly (4) comprises arrange ringwise some to the S-N pole pair, wherein each S level or the adjacent magnetic pole of N level are opposite pole, and an end of described magnetic pole is towards described annular center, and inductive component (3) can cut the magnetic line of force that described pole pair produces in motion process.
2. electric bicycle moment sensor according to claim 1, it is characterized in that: described inductive component (3) can cut the magnetic line of force of described pole pair generation in motion process structure is: described magnetic assembly (4) comprises an annular ring (41), annular ring (41) is along circumferentially offering groove, and even interval is installed with some pole pairs in the described groove; Described inductive component (3) comprises a circular orientation circle (31), and described circular orientation circle (31) is to extending to form flange towards driving part one side, radially inwardly is provided with on the described flange with described pole pair to conduct electricity one to one sensing chip; Annular ring (41) is movably set in the described circular orientation circle (31) with one heart, and described conduction sensing chip is positioned at the outer ring of described pole pair.
3. electric bicycle moment sensor according to claim 1, it is characterized in that: described driving part (8) is connected with described passive components (5) circumferencial direction elasticity and the structure that can relatively rotate certain angle is: described passive components (5) is upper along circumferentially evenly offering several spring mounting holes (51), described driving part (8) is provided with the installation projection (81) corresponding with described spring mounting hole (51), described installation projection (81) stretch into spring mounting hole (51) an end and and the other end of spring mounting hole (51) between be provided with spring (6); Described driving part (8) is upper along circumferentially being laid with several boss one (82), offer the perforate (52) corresponding with described boss one (82) on the described passive components (5), described boss one (82) be located in the corresponding aperture (52) and in a circumferential direction relative sliding cooperate; Described installation projection (81) is arranged with the circle spacing with described boss one (82).
4. electric bicycle moment sensor according to claim 3, it is characterized in that: offer internal thread hole on the described boss one (82), be provided with block piece (7), described block piece (7) is by stub end and have externally threaded microcephaly end and form, the little head end of described block piece (7) wore perforate (52) and was threaded with internal thread hole on the described boss one (82), and described block piece (7) stub end cross sectional dimensions is greater than described perforate (52) size.
5. electric bicycle moment sensor according to claim 1, it is characterized in that: the structure that described magnetic assembly (4) is fixedly arranged on the described driving part (8) is: described driving part (8) comprises driving gear disc (83) and the toggle-action lever (84) that is integral structure, offer on the described driving gear disc (83) can with the axis pilot hole (831) of five-way middle axle assembling, the hole wall of described axis pilot hole (831) extends to form clamping ring towards chain one side, described clamping ring extends radially outwardly and forms boss two (832), and described magnetic assembly (4) be able to be arranged on the described boss two (832).
6. electric bicycle moment sensor according to claim 2, it is characterized in that: the structure that described inductive component (3) is fixedly arranged on the described passive components (5) is: be provided with and can drive the sprocket ring (2) that chain rotates, described sprocket ring (2) is fixedly connected with described passive components (5), described sprocket ring (2) inner ring radial inward forms some projections (22), described circular orientation circle (31) locates to be provided with groove (32) towards chain one side surface respective protrusions (22), and described projection (22) be able to be equipped in the described groove (32) and compress described groove (32).
7. electric bicycle moment sensor according to claim 6, it is characterized in that: described sprocket ring (2) with the structure that described passive components (5) is fixedly connected with is: described sprocket ring (2) is upper along circumferentially offering some through holes one (21), described passive components (5) is gone up the edge circumferentially and is positioned at place, spring mounting hole (51) outer ring and offers through hole two (53), be provided with web member group (1), described sprocket ring (2) is fixedly connected with by described web member group (1) with described passive components (5).
8. electric bicycle moment sensor according to claim 7, it is characterized in that: described web member group (1) comprises inserting rivet (11) and sleeve (12), described sleeve (12) is located between described sprocket ring (2) and the described passive components (5) and corresponding through hole one (21) and through hole two (53), describedly wears through hole one (21), sleeve (12) and through hole two (53) and is locked together inserting rivet (11).
9. electric bicycle moment sensor according to claim 1, it is characterized in that: described driving part (8) is gear disc crank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345315 CN202661208U (en) | 2012-07-17 | 2012-07-17 | Torque sensor of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345315 CN202661208U (en) | 2012-07-17 | 2012-07-17 | Torque sensor of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661208U true CN202661208U (en) | 2013-01-09 |
Family
ID=47456108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345315 Withdrawn - After Issue CN202661208U (en) | 2012-07-17 | 2012-07-17 | Torque sensor of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661208U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542964A (en) * | 2012-07-17 | 2014-01-29 | 耀马车业(中国)有限公司 | Electric bicycle torque sensor |
| CN104236782A (en) * | 2013-06-21 | 2014-12-24 | 捷奥比电动车有限公司 | Strain torque sensor for electric bicycle |
| CN108313190A (en) * | 2018-03-14 | 2018-07-24 | 扬顶（天津）科技有限公司 | A kind of electric assisted bicycle chain drum torque sensor |
| CN109307969A (en) * | 2017-07-26 | 2019-02-05 | 日本电产三协株式会社 | Optical unit with shake correcting function |
-
2012
- 2012-07-17 CN CN 201220345315 patent/CN202661208U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542964A (en) * | 2012-07-17 | 2014-01-29 | 耀马车业(中国)有限公司 | Electric bicycle torque sensor |
| CN103542964B (en) * | 2012-07-17 | 2015-12-23 | 耀马车业(中国)有限公司 | Electric bicycle moment sensor |
| CN104236782A (en) * | 2013-06-21 | 2014-12-24 | 捷奥比电动车有限公司 | Strain torque sensor for electric bicycle |
| CN104236782B (en) * | 2013-06-21 | 2017-01-25 | 捷奥比（昆山）工贸有限公司 | Strain torque sensor for electric bicycle |
| CN109307969A (en) * | 2017-07-26 | 2019-02-05 | 日本电产三协株式会社 | Optical unit with shake correcting function |
| CN108313190A (en) * | 2018-03-14 | 2018-07-24 | 扬顶（天津）科技有限公司 | A kind of electric assisted bicycle chain drum torque sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130109 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |