CN203372348U - Middle shaft type moment sensing device for electric bicycle - Google Patents
Middle shaft type moment sensing device for electric bicycle Download PDFInfo
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- CN203372348U CN203372348U CN201320123508.1U CN201320123508U CN203372348U CN 203372348 U CN203372348 U CN 203372348U CN 201320123508 U CN201320123508 U CN 201320123508U CN 203372348 U CN203372348 U CN 203372348U
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- sleeve
- magnet steel
- outer support
- eccentric sleeve
- eccentric
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Abstract
The utility model discloses a middle shaft type moment sensing device for an electric bicycle, comprising a middle shaft and an outer supporting sleeve. The end face of the outer supporting sleeve is provided with a circuit board, and the circuit board is provided with a leading wire for signal output. The moment sensing device also comprises an eccentric sleeve, a moment sensing support and a torsion spring. The middle shaft is disposed in an eccentric hole of the eccentric sleeve, and the middle shaft and the eccentric sleeve are both disposed in the outer supporting sleeve. One end of the torsion spring is connected to the eccentric sleeve, and the other end is connected to the outer supporting sleeve. The moment sensing support is fixed to one end of the eccentric sleeve, and is provided with a magnetic steel. The outer sides of the magnetic steel are respectively provided with a spacing screw. The circuit board is provided with a linear Hall corresponding to the magnetic steel. The magnetic steel and the linear Hall are both disposed within the external diameter of the outer supporting sleeve. The middle shaft type moment sensing device for an electric bicycle is advantageous in that the structure of the integral apparatus is compact and installation is very convenient; the electric bicycle provided with the moment sensing device is portable and comfortable to use, and laborsaving and power-saving in performance.
Description
Technical field
The utility model relates to the Electrical Bicycle field, especially refers to the automobile-used central-axis type moment sensor of a kind of electrical salf-walking.
Background technology
Because laborsaving, the quick and start-stop of Electrical Bicycle is handled affairs freely, replace gradually bicycle to become people's one of the most general vehicle of riding instead of walk.World market is growing to the demand of Electrical Bicycle at present, and domestic Electrical Bicycle is many carries out unidirectional control vehicle by governor handle, the battery-driven car that pure handgrip is controlled.The battery-driven car that pure handgrip is controlled exists that the speed of a motor vehicle is too fast, consumption of current large, the shortcoming such as frequent of charging; Abroad, as Japan, European Union member countries, the battery-driven car that pure handgrip is controlled classifies as mobile management, has also formulated the technical standard of electric assisted bicycle, and the strict Electrical Bicycle that does not meet national standard of controlling enters.But it is very high that product can really accomplish to meet the technical threshold of Japan and European Union's electric assisted bicycle standard, and its main core technology is exactly the moment sensing part.When the Electrical Bicycle that torque sensor is installed is ridden with by bike, custom is consistent, the moment of riding and the proportional relation of motor output torque, and the purpose doubled to reach moment, thus make to trample light, time saving and energy saving; How to accomplish torque sensor stable, reliably be problem of paramount importance wherein.
Summary of the invention
Technical problem to be solved in the utility model is the defect for prior art, and a kind of compact conformation is provided, easy for installation, stable, reliable and can effectively transducing signal be delivered to the automobile-used central-axis type moment sensor of electrical salf-walking of controller.
The utility model solves the problems of the technologies described above adopted technical scheme:
The automobile-used central-axis type moment sensor of a kind of electrical salf-walking, include axis and outer support sleeve, be provided with wiring board on the end face of outer support sleeve, be provided with the pig-tail wire for signal output on wiring board, wherein, moment sensor also includes eccentric sleeve, moment sensing support and torsion spring, axis is installed in the eccentric orfice of eccentric sleeve, and together with eccentric sleeve, be installed in the outer support sleeve, one end of torsion spring is connected with eccentric sleeve, its other end is connected with the outer support sleeve, the moment sensing support is fixed in an end of eccentric sleeve, relatively be provided with magnet steel on this moment sensing support, the outside of magnet steel respectively is provided with stop screw, wiring board is provided with linear Hall on the correspondence position of described magnet steel, magnet steel and linear Hall all are arranged in the external diameter of described outer support sleeve.
The technical measures of optimizing also comprise:
Be provided with disk on above-mentioned axis, be distributed with evenly and at intervals the second magnet steel on this disk, described wiring board is provided with power-assisted sensing Hall on the correspondence position of the second magnet steel, and the second magnet steel and power-assisted sensing Hall all are arranged in the external diameter of described outer support sleeve.
Be provided with bearing between above-mentioned axis and eccentric sleeve.
Be provided with bearing between above-mentioned eccentric sleeve and outer support sleeve.
Above-mentioned moment sensing support extends to form the magnet steel fixed mount, and magnet steel is fixed in the top of magnet steel fixed mount.
Above-mentioned torsion spring is installed on the middle part of formed cavity between eccentric sleeve and outer support sleeve.
Above-mentioned eccentric sleeve is provided with screened housing being positioned at an end that is fixed with the moment sensing support.
On the end face of above-mentioned outer support sleeve, be provided with for the fixing compression strip of pig-tail wire, compression strip is by the end face heavy keying fit of screw and outer support sleeve.
The utility model has the advantages that:
Because described magnet steel and linear Hall all are arranged in the external diameter of described outer support sleeve, therefore the structure of whole moment sensor is very compact; During installation, only whole device need be installed in the five-way of Electrical Bicycle and get final product, install very convenient;
In addition, torsion spring is installed on the middle part of formed cavity between eccentric sleeve and outer support sleeve, while making to ride about pin to trample output signal more consistent and stable, the comfort level of riding is better; And be provided with screened housing at an end of eccentric sleeve, can effectively prevent in dust, impurity access to plant the normal operation of assurance device, thereby the service life of improving device.
The Electrical Bicycle of this moment sensor has been installed, the custom of riding is consistent with bicycle, it controls motor output power-assisted by inductor, to reach the purpose of laborsaving power saving, make to ride lighter, comfortable, save power consumption, improve the mileages of continuation of battery, reduce the battery charge frequency, thereby improve the service life of battery;
Because this moment sensor can be installed linear Hall and two induction installations of power-assisted sensing Hall simultaneously, the magnetic flux change of linear Hall inductive magnetic steel, the process of power-assisted sensing hall sensing the second magnet steel also is transferred to controller by signal by pig-tail wire, the bicyclist can make moment sensor in pure torque mode, pure assistant mode or moment-assistant mixed mode by operation control, and the setting of two cover induction installations makes the operation of this moment sensor more reliable.
The accompanying drawing explanation
Fig. 1 is the front projection figure of the utility model embodiment mono-;
Fig. 2 is the left view after Fig. 1 removes screened housing;
Fig. 3 is the front projection figure of the utility model embodiment bis-;
Fig. 4 is the left view after Fig. 3 removes screened housing.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Fig. 1 to Fig. 4 is structural representation of the present utility model,
Reference numeral wherein is: axis 1, bearing 2, eccentric sleeve 3, moment sensing support 4, magnet steel fixed mount 4a, torsion spring 5, stop screw 6, magnet steel 7, linear Hall 8, wiring board 9, outer support sleeve 10, pig-tail wire 11, power-assisted sensing Hall 12, disk 13, the second magnet steel 14, screened housing 15, compression strip 16, screw 17.
Embodiment mono-:
As shown in Figure 1 to Figure 2,
The automobile-used central-axis type moment sensor of a kind of electrical salf-walking, include axis 1 and outer support sleeve 10, be provided with wiring board 9 on the end face of outer support sleeve 10, be provided with the pig-tail wire 11 for signal output on wiring board 9, wherein, moment sensor also includes eccentric sleeve 3, moment sensing support 4 and torsion spring 5, axis 1 is installed in the eccentric orfice of eccentric sleeve 3, and together with eccentric sleeve 3, be installed in outer support sleeve 10, one end of torsion spring 5 is connected with eccentric sleeve 3, its other end is connected with outer support sleeve 10, moment sensing support 4 is fixed in an end of eccentric sleeve 3, relatively be provided with magnet steel 7 on this moment sensing support 4, the outside of magnet steel 7 respectively is provided with stop screw 6, wiring board 9 is provided with linear Hall 8 on the correspondence position of described magnet steel 7, magnet steel 7 and linear Hall 8 all are arranged in the external diameter of described outer support sleeve 10.
In embodiment, be provided with disk 13 on axis 1, be distributed with evenly and at intervals the second magnet steel 14 on this disk 13, described wiring board 9 is provided with power-assisted sensing Hall 12, the second magnet steel 14 on the correspondence position of the second magnet steel 14 and power-assisted sensing Hall 12 all is arranged in the external diameter of described outer support sleeve 10.
In embodiment, between axis 1 and eccentric sleeve 3, be provided with bearing 2.
In embodiment, between eccentric sleeve 3 and outer support sleeve 10, be provided with bearing 2.
In embodiment, moment sensing support 4 extends to form magnet steel fixed mount 4a, and magnet steel 7 is fixed in the top of magnet steel fixed mount 4a.
In embodiment, torsion spring 5 is installed on the middle part of formed cavity between eccentric sleeve 3 and outer support sleeve 10.
In embodiment, eccentric sleeve 3 is provided with screened housing 15 being positioned at an end that is fixed with moment sensing support 4.
In embodiment, on the end face of outer support sleeve 10, be provided with for the fixing compression strip 16 of pig-tail wire 11, compression strip 16 is the end face heavy keying fit with outer support sleeve 10 by screw 17.
Principle of work: whole device was installed on Electrical Bicycle by outer support sleeve 10 and coordinating of Electrical Bicycle five-way, trample and make crank drive axis 1 rotation by both feet in riding, when axis 1 rotates, chain drum rotates and passes through the chain-driving trailing wheel and rotate, now axis 1 is subject to the drag effect of chain, by bearing 2, transmit torque on eccentric sleeve 3, eccentric sleeve 3 is followed axis 1 and is rotated, and with the moment sensing support 4 of eccentric sleeve 3 heavy keying fit, also rotates thereupon; The rotation of moment sensing support 4 makes to be fixed on that magnet steel 7 on moment sensing support 4 is subjected to displacement and the variation that produces magnetic flow, be fixed on the variation that the linear Hall 8 on wiring board 9 is sensed magnetic flow, and position signal is converted to voltage signal by pig-tail wire 11, outputs to controller, controller detects the signal rear motor to start output and realizes power-assisted; When moment sensing support 4 turns to certain angle, stop screw 6 just plays a role, and magnet steel 7 no longer is subjected to displacement, thereby guarantees the stability of output signal; When eccentric sleeve 3 rotates, deformation occurs in the torsion spring 5 be arranged between outer support sleeve 10 and eccentric sleeve 3, and while stopping trampling, under the effect of torsion spring 5 restoring forces, eccentric sleeve 3 will be returned to reference position, and signal also will stop output; Above process is pure torque mode.
Both feet are trampled axis 1 are rotated, be fixed on disk 13 on axis 1 and the second magnet steel 14 on disk 13 and follow rotation, be fixed on power-assisted sensing Hall 12 on wiring board 9 and sense the process of the second magnet steel 14, produce signal, and this signal is outputed to controller by pig-tail wire 11, controller detects the output of signal rear motor and realizes that power-assisted, above process are pure assistant modes.
When above two kinds of pattern combinations, when both feet are trampled, linear Hall 8 is sensed the variation of the magnetic flow of magnet steel 7, and signal is outputed to controller, power-assisted sensing Hall 12 is sensed the process of the second magnet steel 14 simultaneously, produces signal, and signal is outputed to controller; Controller is processed above two kinds of signals, and control motor output and make can be steadily comfortable the riding of Electrical Bicycle, be more than the moment-assistant mixed mode.
By the control of button on controller, can realize the mutual switching between pure torque mode, pure assistant mode and moment-assistant mixed mode, make the bicyclist that more selection be arranged, also guaranteed the moment sensor reliability of operation.
One end of the eccentric sleeve 3 of this moment sensor is provided with screened housing 15, can effectively prevent that dust, impurity from entering in device, has avoided the motion that causes because of foreign matter between each parts not smooth or stuck, thereby improves the service life of device; And torsion spring 5 is installed on to the middle part of formed cavity between eccentric sleeve 3 and outer support sleeve 10, while making to ride about pin trample stressed more evenly, output signal is more consistent and stable, the comfort level of riding is better.
The Electrical Bicycle of this moment sensor has been installed, and while riding with by bike, custom is consistent, and the moment of riding and the proportional relation of motor output torque, to reach the purpose of moment multiplication.While riding, trample light; While climbing against the wind, time saving and energy saving; Stop trampling moment sensor and just automatically quit work, energy-saving safe, increase mileages of continuation effectively, and extend the service life of battery.
Embodiment bis-:
As shown in Figure 3 to Figure 4,
Moment sensor in the present embodiment and above-mentioned moment sensor structural similitude, moment sensor only is provided with magnet steel 7 and linear Hall 8, by the magnetic flux change of linear Hall 8 inductive magnetic steels 7, signal is transferred to controller by pig-tail wire 11 and realize power-assisted, principle of work is identical with above-mentioned pure assistant mode, it is simple in structure very compact again, easy for installation, low cost of manufacture.
Claims (8)
1. the automobile-used central-axis type moment sensor of electrical salf-walking, include axis (1) and outer support sleeve (10), be provided with wiring board (9) on the end face of described outer support sleeve (10), be provided with the pig-tail wire (11) for signal output on described wiring board (9), it is characterized in that: described moment sensor also includes eccentric sleeve (3), moment sensing support (4) and torsion spring (5), described axis (1) is installed in the eccentric orfice of eccentric sleeve (3), and together with eccentric sleeve (3), be installed in described outer support sleeve (10), one end of described torsion spring (5) is connected with eccentric sleeve (3), its other end is connected with outer support sleeve (10), described moment sensing support (4) is fixed in an end of eccentric sleeve (3), relatively be provided with magnet steel (7) on this moment sensing support (4), the outside of described magnet steel (7) respectively is provided with stop screw (6), described wiring board (9) is provided with linear Hall (8) on the correspondence position of described magnet steel (7), described magnet steel (7) and linear Hall (8) all are arranged in the external diameter of described outer support sleeve (10).
2. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 1, it is characterized in that: be provided with disk (13) on described axis (1), be distributed with evenly and at intervals the second magnet steel (14) on this disk (13), described wiring board (9) is provided with power-assisted sensing Hall (12) on the correspondence position of the second magnet steel (14), and described the second magnet steel (14) and power-assisted sensing Hall (12) all are arranged in the external diameter of described outer support sleeve (10).
3. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 2, is characterized in that: between described axis (1) and eccentric sleeve (3), be provided with bearing (2).
4. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 3, is characterized in that: between described eccentric sleeve (3) and outer support sleeve (10), be provided with bearing (2).
5. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 4, it is characterized in that: described moment sensing support (4) extends to form magnet steel fixed mount (4a), and described magnet steel (7) is fixed in the top of magnet steel fixed mount (4a).
6. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 5, it is characterized in that: described torsion spring (5) is installed on the middle part of formed cavity between eccentric sleeve (3) and outer support sleeve (10).
7. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 6 is characterized in that: described eccentric sleeve (3) is provided with screened housing (15) being positioned at an end that is fixed with moment sensing support (4).
8. the automobile-used central-axis type moment sensor of electrical salf-walking according to claim 7, it is characterized in that: on the end face of described outer support sleeve (10), be provided with for the fixing compression strip (16) of pig-tail wire (11), described compression strip (16) is the end face heavy keying fit with outer support sleeve (10) by screw (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320123508.1U CN203372348U (en) | 2013-03-19 | 2013-03-19 | Middle shaft type moment sensing device for electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320123508.1U CN203372348U (en) | 2013-03-19 | 2013-03-19 | Middle shaft type moment sensing device for electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203372348U true CN203372348U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320123508.1U Expired - Fee Related CN203372348U (en) | 2013-03-19 | 2013-03-19 | Middle shaft type moment sensing device for electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203372348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105799854A (en) * | 2016-03-18 | 2016-07-27 | 同济大学 | Electric bicycle torque detecting device |
| CN107336789A (en) * | 2016-04-28 | 2017-11-10 | 雅马哈发动机株式会社 | Driver element and electrically assisted bicycle |
-
2013
- 2013-03-19 CN CN201320123508.1U patent/CN203372348U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105799854A (en) * | 2016-03-18 | 2016-07-27 | 同济大学 | Electric bicycle torque detecting device |
| CN105799854B (en) * | 2016-03-18 | 2018-06-26 | 同济大学 | A kind of electric bicycle torque master |
| CN107336789A (en) * | 2016-04-28 | 2017-11-10 | 雅马哈发动机株式会社 | Driver element and electrically assisted bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20190319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |