CN201140775Y - Novel medial axis boosting sensor of electric vehicle - Google Patents
Novel medial axis boosting sensor of electric vehicle Download PDFInfo
- Publication number
- CN201140775Y CN201140775Y CNU2007200039416U CN200720003941U CN201140775Y CN 201140775 Y CN201140775 Y CN 201140775Y CN U2007200039416 U CNU2007200039416 U CN U2007200039416U CN 200720003941 U CN200720003941 U CN 200720003941U CN 201140775 Y CN201140775 Y CN 201140775Y
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- sleeve
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- chain
- axis
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Abstract
The utility model relates to a novel power assistant sensor which is designed by a special scheme based on analyzing a current electric bicycle power assistant sensor, in particular to an electric bicycle novel center shaft power assistant sensor, which is formed by a five-way, a center shaft, a sleeve, a bearing, a tooth disc, a chain, and a sensing component, and is characterized in that at least one side of the center shaft close to the chain is supported on the sleeve by the bearing, the left side of the sleeve is fixed on the five-way through a cap, the middle of the sleeve is thicker, is fitted with the five-way, and is located by screws to lock on the five-way. One side of the sleeve close to the chain is hung in the five-way, a strain gauge which is adhered on the hanging section of the sleeve used as the sensing component, the sleeve is deformed through using the tension of the chain, and torque which is outputted by the center shaft through the tooth disc and the chain is detected by the strain gauge. The novel center shaft power assistant sensor has reasonable design, simple and reliable structure, convenient fit with a detecting circuit, excellent compatibility with the bicycle, and easy assembly.
Description
Technical field:
The utility model belongs to dynamo-electric field, particularly a kind of improvement of Electrical Bicycle assistant sensor, the novel axis assistant sensor of especially a kind of battery-driven car.
Background technology:
Electrical Bicycle assistant sensor commonly used now has following several scheme:
1. count the false assistant sensor of velocity profile of motor pulses or axis pulse.
2. loading onto a cover elastic element between axis and chain wheel or between motor and flywheel, utilize the slip displacement behind the elastic element stress deformation, promote corresponding mechanical action, and produce physical quantitys such as magnetic field, light quantity between certain static sensor device and change, and be converted to electric weight, detect cyclist's pedal power.
3. loading onto a cover elastic element between axis and chain wheel or between motor and flywheel, and, loading onto pulse generating unit respectively at the elastic element two ends, utilize the slip displacement behind the elastic element stress deformation, make between two train of impulses and produce phase difference,, detect the power of pedaling by bike through the phase discriminator conversion.
4. between axis that rotates and sprocket wheel, establish deformable body, directly paste strain-gauge, and amplifying circuit is set, be connected with slip ring, brush with the external world.
5. between axis that rotates and sprocket wheel, establish deformable body, be stained with the subsides special material thereon, make it produce magnetic conductance and change in stressed back, cause supporting with it, the coil assembly inductance with its rotation changes, and is corresponding electric weight by detecting inductance or the number conversion of lotus root syzygy.
6, on the chain major loop, have a mind to load onto a movable pinch roller, detect the displacement that pinch roller produces under chain tension, and produce physical quantitys variations such as magnetic field, light quantity between certain static sensor device, and be converted to electric weight, converting through linearization detects cyclist's the power of pedaling.
In the above-mentioned six big classes, first kind is simple, cheap, but do not reflect true, in heavy duty, against the wind, when going up a slope, just not handy.Other five kinds, advantage is: can both satisfy operating needs, but each have their own difficulty, common ground is:
Volume is big, price is high, complex structure, precision are not high, reliability is not enough, make and the assembling difficulty.How to design the higher inexpensive assistant sensor product of a kind of cost performance, become the very urgent demand of Moped Scooter industry.
Summary of the invention:
The utility model purpose is the higher novel assistant sensor of designability price ratio, the novel axis assistant sensor of particularly a kind of battery-driven car.
Technical solutions of the utility model are achieved in that the novel axis assistant sensor of a kind of battery-driven car, by five-way, axis, sleeve, bearing, chain wheel, chain, compositions such as sensitive member, it is characterized in that: be bearing on the sleeve with bearing near chain one side at least on the axis, the left side of sleeve is fastened on the five-way by end cap, the centre of sleeve is thicker, cooperate with five-way, located and be locked on the five-way by screw, the right of sleeve is unsettled in five-way near chain one side, on unsettled section sleeve, be pasted with strain-gauge as sensitive member, utilize the pulling force of chain to cause the sleeve distortion, detect the moment that axis spreads out of by the chain wheel chain by strain-gauge.
Described sleeve and five-way form one, and strain-gauge directly sticks on its barrel.This is the simplest a kind of structure, and shortcoming is that commonality is the poorest, is applicable to the car load factory that components and parts processing and manufacturing ability is arranged oneself.
Described sleeve is anchored in the five-way by screw.
Described sleeve is anchored in the spacer shell, and spacer shell is fixed in the five-way with conventional scheme.The commonality of this scheme is the strongest, is applicable to the large quantities of manufacturings of axis factory by specialty.
The utility model is reasonable in design, and is simple in structure, firm, reliable, and testing circuit cooperates convenient, and the testing precision height is good with the bicycle compatibility.
Description of drawings:
Below in conjunction with concrete legend the utility model is described further:
Two axis assistant sensors of Fig. 1 scheme drawing
Three axis assistant sensors of Fig. 2 scheme drawing
Wherein
1-axis 2-bearing 3-end cap 4-sleeve
5-spacer shell 6-five-way 7-strain-gauge 8-screw
The specific embodiment:
One: two axis assistant sensor of embodiment
With reference to Fig. 1, axis 1 is bearing on the sleeve 4 by pair of bearings 2, the left side of sleeve 4 is fastened on the five-way 6 by end cap 3, the centre of sleeve 4 is thicker, cooperate with five-way 6, located and be locked on the five-way 6 by screw 8, the right of sleeve 4 (going up the chain side) is unsettled in five-way 6, be pasted with strain-gauge 7 on it, the direction that strain-gauge 7 is pasted be once before, one back two much of that.
When the people steps on car, chain pulling axis right side backward, axis is passed to sleeve to power by bearing, overlap left side one side of something and is fixed by five-way, right half of, especially paste near unsettled section of the district of strain-gauge, produce distortion, be converted to electric weight by strain-gauge, handle through subsequent conditioning circuit, the control motor is pedaled the power size with the people and is produced power-assisted.
Two: three axis assistant sensors of embodiment
With reference to Fig. 2, compare with embodiment one, many spacer shells 5, left bearing is contained in the spacer shell, and right bearing is contained in the sleeve 4.Movable in spacer shell for preventing sleeve, the two has also designed holding screw.It is not enough to consider that the right bearing external diameter reduces back bearing capacity possibility, and this example has been selected the duplex bearing scheme.Change keyway into the shrinkage pool on the spacer shell that screw 8 matches, can avoid producing the location and interfere, help assembling with two end cap.
Claims (2)
1, the novel axis assistant sensor of a kind of battery-driven car, by five-way, axis, sleeve, bearing, chain wheel, chain, compositions such as sensitive member, it is characterized in that: be bearing on the sleeve with bearing near chain one side at least on the axis, the left side of sleeve is fastened on the five-way by end cap, the centre of sleeve is thicker, cooperate with five-way, located and be locked on the five-way by screw, the right of sleeve is unsettled in five-way near chain one side, on unsettled section sleeve, be pasted with strain-gauge as sensitive member, utilize the pulling force of chain to cause the sleeve distortion, detect the moment that axis spreads out of by the chain wheel chain by strain-gauge.
2, the novel axis assistant sensor of battery-driven car according to claim 1 is characterized in that: sleeve and five-way form one, and strain-gauge directly sticks on its barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200039416U CN201140775Y (en) | 2007-01-23 | 2007-01-23 | Novel medial axis boosting sensor of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200039416U CN201140775Y (en) | 2007-01-23 | 2007-01-23 | Novel medial axis boosting sensor of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201140775Y true CN201140775Y (en) | 2008-10-29 |
Family
ID=40068489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200039416U Expired - Fee Related CN201140775Y (en) | 2007-01-23 | 2007-01-23 | Novel medial axis boosting sensor of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201140775Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2592406A1 (en) * | 2010-07-09 | 2013-05-15 | Panasonic Corporation | Pedal force detecting device |
| WO2014190568A1 (en) * | 2013-05-27 | 2014-12-04 | 深圳市森浦精机科技有限公司 | Device for measuring moment of central shaft |
| CN104773254A (en) * | 2014-01-09 | 2015-07-15 | 刘俊祥 | Driving assembly of electric bicycle |
| CN108627293A (en) * | 2018-05-07 | 2018-10-09 | 重庆三叶花科技有限公司 | Deformation bridge structure for axis moment measuring device |
| CN108801504A (en) * | 2018-08-27 | 2018-11-13 | 太仓市悦博电动科技有限公司 | A kind of device for pressure measurement and bicycle tread sensors |
| CN109506815A (en) * | 2018-12-26 | 2019-03-22 | 重庆理工大学 | A kind of suspension electric bicycle torque sensor |
| CN109572915A (en) * | 2018-12-26 | 2019-04-05 | 重庆理工大学 | A kind of cantilever axis electric bicycle torque measuring device |
| CN109572914A (en) * | 2018-12-26 | 2019-04-05 | 重庆理工大学 | A kind of cantilever axis electric bicycle moment sensor |
| CN109665051A (en) * | 2019-01-25 | 2019-04-23 | 苏州盛亿电机有限公司 | A kind of high-precision axis pedal force sensing device |
| 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 |
-
2007
- 2007-01-23 CN CNU2007200039416U patent/CN201140775Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2592406A1 (en) * | 2010-07-09 | 2013-05-15 | Panasonic Corporation | Pedal force detecting device |
| EP2592406A4 (en) * | 2010-07-09 | 2013-10-02 | Panasonic Corp | Pedal force detecting device |
| WO2014190568A1 (en) * | 2013-05-27 | 2014-12-04 | 深圳市森浦精机科技有限公司 | Device for measuring moment of central shaft |
| CN104773254A (en) * | 2014-01-09 | 2015-07-15 | 刘俊祥 | Driving assembly of electric bicycle |
| CN108627293A (en) * | 2018-05-07 | 2018-10-09 | 重庆三叶花科技有限公司 | Deformation bridge structure for axis moment measuring device |
| CN108801504A (en) * | 2018-08-27 | 2018-11-13 | 太仓市悦博电动科技有限公司 | A kind of device for pressure measurement and bicycle tread sensors |
| CN109506815A (en) * | 2018-12-26 | 2019-03-22 | 重庆理工大学 | A kind of suspension electric bicycle torque sensor |
| CN109572915A (en) * | 2018-12-26 | 2019-04-05 | 重庆理工大学 | A kind of cantilever axis electric bicycle torque measuring device |
| CN109572914A (en) * | 2018-12-26 | 2019-04-05 | 重庆理工大学 | A kind of cantilever axis electric bicycle moment sensor |
| CN109665051A (en) * | 2019-01-25 | 2019-04-23 | 苏州盛亿电机有限公司 | A kind of high-precision axis pedal force sensing device |
| CN109665051B (en) * | 2019-01-25 | 2024-02-06 | 苏州盛亿电机有限公司 | High-precision center shaft pedal force sensing device |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20110123 |