CN111391959A - Middle axle transmission mechanism of electric bicycle - Google Patents
Middle axle transmission mechanism of electric bicycle Download PDFInfo
- Publication number
- CN111391959A CN111391959A CN202010385964.8A CN202010385964A CN111391959A CN 111391959 A CN111391959 A CN 111391959A CN 202010385964 A CN202010385964 A CN 202010385964A CN 111391959 A CN111391959 A CN 111391959A
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- electric bicycle
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 86
- 230000007246 mechanism Effects 0.000 title claims abstract description 71
- 230000009467 reduction Effects 0.000 claims description 11
- 230000007480 spreading Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- ZMHWQAHZKUPENF-UHFFFAOYSA-N 1,2-dichloro-3-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC(Cl)=C1Cl ZMHWQAHZKUPENF-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
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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
- B62M6/70—Rider propelled cycles with auxiliary electric motor power-driven at single endless flexible member, e.g. chain, between cycle crankshaft and wheel axle, the motor engaging the endless flexible member
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a middle shaft transmission mechanism of an electric bicycle, which comprises: the middle shaft is used for mounting a crank and a pedal to bear the riding pedaling force; the main chain wheel transmits pedal force to a driving chain wheel of the electric bicycle through a sleeved chain; the electric driving mechanism is arranged in the shell together with the middle shaft and is provided with an output shaft which is used for outputting power and is parallel to the middle shaft; it is characterized in that the main fluted disc is fixed on an output shaft, and the middle shaft is in transmission connection with the output shaft through a gear transmission mechanism. According to the invention, the main fluted disc is fixed on the output shaft of the electric driving mechanism parallel to the middle shaft by an inverse conventional design, so that the whole structure of the mechanism is more compact, the volume is smaller, and the transmission efficiency is higher.
Description
Technical Field
The invention relates to a middle shaft transmission mechanism of an electric bicycle.
Background
The middle shaft transmission mechanism of the electric bicycle is a general name of a whole set of power mechanism comprising a motor, a middle shaft, a clutch, a speed reducing mechanism, a torque sensor and a chain wheel. The structure forms of the middle shaft transmission mechanism in the prior art are various, and the final transmission efficiency and the whole volume of the mechanism are different due to different structures.
A middle shaft transmission mechanism widely applied in the industry of the electric bicycle at present is in a side hanging mode, a middle shaft of the middle shaft transmission mechanism is arranged in parallel with an output shaft of a motor, and a middle shaft sleeve for arranging the middle shaft is led out of a shell so as to be inserted into a frame five-way pipe of a universal specification on the market, so that the motor does not need to be matched with a special hanging bracket, can be matched with frames of most specifications on the market, and has good adaptability.
As is well known, in the existing inherent structural form of the middle shaft transmission mechanism, a chain wheel is usually fixed with a middle shaft, the power at the motor end is decelerated by a deceleration mechanism, transmitted to the middle shaft by a one-stage or multi-stage transmission gear, transmitted to the chain wheel by the middle shaft, and finally transmitted to a rear wheel to drive the electric bicycle to run by the chain wheel; when the bicycle is ridden, the force of the pedal of a person is transmitted to the middle shaft through the crank, then transmitted to the chain wheel, and finally transmitted to the rear wheel driving electric bicycle through the chain by the chain wheel to run.
However, in practice, the above-mentioned inherent design of the bottom bracket bearing drive increasingly suffers from the following disadvantages:
1) the power output of the motor is transmitted through the speed reducing mechanism and also transmitted to the chain wheel through the middle one-stage or multi-stage gear transmission mechanism, so that the transmission loss is large, and the transmission efficiency cannot be effectively improved all the time;
2) the larger size of the crankset coupled with its geared design with the central shaft and the interior leads to an overall structure that cannot be further compacted, but the crankset cannot be made smaller because it is directly mounted on the central shaft, the specifications being designed according to the transmission ratio and the human pedaling rate, which is not desirable or permissible in design if the crankset is made smaller, which may increase the human pedaling rate.
Therefore, a middle shaft transmission mechanism of an electric bicycle with a more compact structure, a smaller volume and higher transmission efficiency is urgently needed in the industry.
Disclosure of Invention
The invention aims to: the middle shaft transmission mechanism of the electric bicycle is more compact in structure, small in size and high in transmission efficiency.
The technical scheme of the invention is as follows: a bottom bracket drive mechanism for an electric bicycle, comprising:
the middle shaft is used for mounting a crank and a pedal to bear the riding pedaling force;
the main chain wheel transmits pedal force to a driving chain wheel of the electric bicycle through a sleeved chain;
the electric driving mechanism is arranged in the shell together with the middle shaft and is provided with an output shaft which is used for outputting power and is parallel to the middle shaft;
the gear transmission mechanism is characterized in that the main fluted disc is fixed on an output shaft, and the middle shaft is in transmission connection with the output shaft through the gear transmission mechanism; the chain expanding device further comprises at least one auxiliary chain wheel which is pivotally arranged on the shell and used for expanding the chain.
Furthermore, the motor driving mechanism comprises a motor core, a speed reducing mechanism, a first clutch and the output shaft, wherein the core shaft of the motor core is connected with the outer ring of the first clutch through the speed reducing mechanism, and the inner ring of the first clutch is fixed on the output shaft. Of course, the motor core may adopt any form of an inner rotor outer stator or an outer rotor inner stator, and the invention is not limited to this.
Furthermore, the speed reducing mechanism is a planetary speed reducing mechanism and comprises a gear ring formed on the inner wall of the shell and a plurality of planetary gears which are distributed around the machine core shaft and are meshed with the gear ring, the planetary gears are simultaneously meshed with a shaft gear arranged on the machine core shaft, a planetary shaft is arranged at the center of each planetary gear in a pivoting mode, and the planetary shaft is fixed with the outer ring of the first clutch. Of course, the speed reducing mechanism of the present invention may employ any conventionally known internally fitting or externally fitting speed reducing mechanism other than the planetary speed reducing mechanism.
Still further, a support ring is arranged between the motor core and the planetary reduction mechanism, the support ring and an outer ring of the first clutch fix the planetary shaft together, and the support ring is rotatably assembled on the core shaft through a coaxial bearing.
Furthermore, the gear transmission mechanism comprises a first transmission gear, a second transmission gear, an idler gear and a second clutch, wherein the first transmission gear is arranged on the middle shaft by adopting a bearing, the inner side of the first transmission gear is fixed with the outer ring of the second clutch, the inner ring of the second clutch is fixed with the middle shaft, the second transmission gear is fixed on the output shaft, the idler gear is pivotally arranged in the shell, and the idler gear is meshed with the first transmission gear and the second transmission gear.
Still further, the present invention further includes a torque sensor disposed on the center shaft or the output shaft, for example, a conventional magnetic ring hall sensor (shaft sleeve type) is selected, which includes a deformation shaft sleeve fixed on the center shaft or the output shaft and a hall element support fixed on the housing and located at the periphery of the deformation shaft sleeve, an induction magnetic ring positioning sleeve is fixed on the deformation shaft sleeve, an induction magnetic ring is fixed on the induction magnetic ring positioning sleeve along the circumference, a hall element matched with the induction magnetic ring is fixed on the hall element support, and the hall element is electrically connected with a controller of the electric bicycle for driving the motor core to operate. As long as the middle shaft is stressed, the sensor can sense signals to the controller to drive the motor core to operate.
Or the torque sensor can be arranged at the idler pulley and specially designed to comprise a sensor deformation support arranged in the shell, the idler pulley is pivotally arranged on the sensor deformation support, a strain gauge and a PCB electrically connected with the strain gauge are fixed on the sensor deformation support, and the PCB is electrically connected with a controller of the electric bicycle for driving the motor core to run; and the centers of the first transmission gear, the second transmission gear and the idler gear are distributed in a triangular shape. When a person treads the pedal to enable the middle shaft to be stressed and rotated, the meshed second clutch drives the first transmission gear to rotate and then drives the idle gear to rotate, and the stress of the idle gear enables the strain gauge on the sensor deformation support to be deformed to generate a sensing signal which is transmitted to the controller, so that the controller drives the motor core to operate.
Still further, in the present invention, the diameter of the first transmission gear is larger than that of the idle gear, and the diameter of the second transmission gear is smaller than or equal to that of the idle gear.
Furthermore, the invention also comprises at least one auxiliary chain wheel which is pivotally arranged on the shell and is used for expanding the chain.
The working principle of the invention is as follows:
the motor core operating condition, core axle output torque, through reducing mechanism and first clutch transmission to output shaft and main chain wheel on, the last main chain wheel is through the chain with the transmission of torque to electric bicycle's drive sprocket on, the drive electric bicycle marchs. In this state, the first transmission gear is disengaged from the middle shaft due to the action of the second clutch.
The people ride and trample operating condition, and the foot is incessantly trampled pedal on the crank, and on the moment of torsion transmitted to first drive gear through well axle through the second clutch, first drive gear rethread idler transmitted the moment of torsion to second drive gear on, and then transmitted to output shaft and main chain wheel, on last main chain wheel transmitted the moment of torsion to electric bicycle's drive sprocket through the chain equally, drive electric bicycle marched. In this state, the output shaft is disengaged from the planetary reduction mechanism due to the action of the first clutch.
The invention has the advantages that:
1) according to the invention, the main toothed disc is fixed on the output shaft of the electric driving mechanism parallel to the middle shaft by an anti-conventional design, so that the power output of the motor core is transmitted to the main toothed disc through the middle one-stage or multi-stage gear transmission mechanism after passing through the speed reducing mechanism without the need of the conventional technology, the transmission loss can be greatly reduced, and the transmission efficiency is effectively improved.
) In the invention, the main chain wheel is directly fixed on the output shaft of the electric driving mechanism instead of the middle shaft, so that the specification of the main chain wheel is not limited by the requirements of transmission speed ratio and treading speed of people, and the size can be further reduced. And after the size of the main gear disc is changed to be small, the structural design of the whole middle shaft transmission mechanism is more compact, and the volume of the shell part can be made smaller.
) In the conventional technology, a toothed disc connecting sleeve needs to be designed for assembling with a middle shaft and an internal gear transmission mechanism, the main toothed disc is very convenient and simple to mount, the assembling efficiency can be improved, and the toothed disc connecting sleeve is eliminated, so that parts are reduced, the structure is further simplified, and the production cost is reduced.
) In the preferred scheme of the invention, the torque sensor is designed at the position of the idler wheel, a shaft sleeve type torque sensor originally designed on a middle shaft or an output shaft is not adopted, and the sensor structure is redesigned, so that the volume can be reduced, the production cost can be reduced, and the internal structure of the middle shaft transmission mechanism can be effectively utilized and optimized.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a cross-sectional view of a structure according to an embodiment of the present invention;
FIG. 2 is an exterior crankset view of the housing of the embodiment of FIG. 1;
fig. 3 is a front view of the sensor deformation bracket of the embodiment of fig. 1 (including its positional relationship with the first drive gear, the second drive gear, and the idler gear).
Wherein: 1. a middle shaft; 2. a crank; 3. a master chain wheel; 4. a chain; 5. a drive sprocket; 6. a housing; 7. an output shaft; 8. a motor core; 8a, a machine core shaft; 9. a first clutch; 10. a ring gear; 11. a planetary gear; 12. a shaft gear; 13. a planet shaft; 14. a support ring; 15. a coaxial bearing; 16. a first drive gear; 17. a second transmission gear; 18. an idler pulley; 19. a second clutch; 20. a sensor deformation support; 21. a strain gauge; 22. a PCB board; 23. an auxiliary chain wheel; 24. an electric bicycle frame; 25. the frame five-way pipe.
Detailed Description
Example (b): referring to fig. 1 to 3, the bottom bracket driving mechanism of the electric bicycle according to the present invention is described as follows:
the structure of the middle shaft transmission mechanism of the electric bicycle mainly comprises a middle shaft 1, a crank 2, a main toothed disc 3, a shell 6, an output shaft 7, a motor core 8, a core shaft 8a, a planetary reduction mechanism, a first clutch 9, a gear ring 10, a support ring 14, a coaxial bearing 15, a gear transmission mechanism, a second clutch 19, a torque sensor and an auxiliary toothed disc 23.
First, as shown in fig. 1, the housing 6 is composed of an upper housing and a lower housing which are connected with each other at the middle, the middle axle 1 is installed in the lower housing of the housing 6 by a plurality of bearings (not shown) as in the conventional art, and then is inserted into the frame five-way tube 25 of the electric bicycle frame 24 to be fixed. The two ends of the middle shaft 1 are used for mounting a crank 2 and a pedal (not shown) to bear riding pedaling force.
The motor core 8, the planetary reduction mechanism, the first clutch 9 and the output shaft 7 are all arranged in the upper shell of the shell 6, wherein the motor core 8 adopts an inner rotor outer stator form, a core shaft 8a fixed on the rotor extends out to be connected with an outer ring of the first clutch 9 through the planetary reduction mechanism, an inner ring of the first clutch 9 is fixed on the output shaft 7, and the output shaft 7 is assembled in the upper shell by adopting a plurality of bearings (not marked in the figure) and is parallel to the middle shaft 1.
The planetary reduction mechanism in this embodiment is composed of a ring gear 10 formed on the inner wall of the housing 6, three planetary gears 11 arranged around the core shaft 8a and engaged with the ring gear 10, a shaft gear 12 engaged with the three planetary gears 11 and provided on the core shaft 8a, and planetary shafts 13 pivotally provided at the centers of the planetary gears 11, and these planetary shafts 13 are fixed to the outer race of the first clutch 9.
As shown in fig. 1, a support ring 14 is disposed between the motor core 8 and the planetary reduction mechanism in this embodiment, the support ring 14 fixes the planetary shaft 13 together with the outer ring of the first clutch 9, and the support ring 14 is rotatably mounted on the core shaft 8a through a coaxial bearing 15.
One end of the output shaft 7 extends out of the housing 6 to fix the main chain wheel 3, and the main chain wheel 3 transmits pedaling force to the driving sprocket 5 installed at the rear of the electric bicycle frame 24 through the sheathing chain 4.
Meanwhile, as shown in fig. 2, two auxiliary crankshafts 23 are symmetrically and pivotally mounted on the lower housing of the housing 6 in the embodiment at the upper and lower sides of the central shaft 1 for spreading the chain 4, so as to better transmit torque and avoid possible interference between the chain 4 and the crank 2.
Referring back to fig. 1, in the present embodiment, the central shaft 1 is in transmission connection with the output shaft 7 through a gear transmission mechanism.
The gear transmission mechanism is composed of a first transmission gear 16, a second transmission gear 17, an idler gear 18 and a second clutch 19, wherein the first transmission gear 16 is installed on the middle shaft 1 by adopting a plurality of bearings (not marked in the figure), the inner side of the first transmission gear 16 is fixed with the outer ring of the second clutch 19, the inner ring of the second clutch 19 is fixed with the middle shaft 1, the second transmission gear 17 is fixed on the output shaft 7, the idler gear 18 is pivotally installed in the shell 6, and the idler gear 18 is meshed with the first transmission gear 16 and the second transmission gear 17.
And in the present embodiment, a torque sensor is provided at the idle gear 18, the torque sensor includes a sensor deformation bracket 20 fixed in the housing 6, the idle gear 18 is pivotally mounted on the sensor deformation bracket 20, and as shown in fig. 3, a strain gauge 21 and a PCB 22 electrically connected to the strain gauge 21 are fixed on the sensor deformation bracket 20, and the PCB 22 is electrically connected to a controller (omitted in the figure) of the electric bicycle for driving the motor core 8 to operate. And the centers of the first transmission gear 16, the second transmission gear 17 and the idle gear 18 are distributed in a triangle in this embodiment. While the first transmission gear 16 has a larger diameter than the idle gear 18 and the second transmission gear 17 has a smaller diameter than the idle gear 18.
The working principle of the invention is as follows:
when the motor core 8 is in a working state, a person treads a pedal on the crank 2, the middle shaft 1 rotates under stress, the first transmission gear 16 is driven to rotate through the meshed second clutch 19, then the idler pulley 18 is driven to rotate, the idler pulley 18 deforms under stress so as to generate a sensing signal which is transmitted to the controller, and the controller drives the motor core 8 to operate. The machine core shaft 8a outputs torque, the torque is transmitted to the output shaft 7 and the main chain wheel 3 through the planetary speed reducing mechanism and the first clutch 9, and finally the main chain wheel 3 transmits the torque to the driving chain wheel 5 of the electric bicycle through the chain 4 to drive the electric bicycle to move. After the mandrel 8a rotates, the second transmission gear 17 drives the idle gear 18 and the first transmission gear 16 to rotate reversely, so that the second clutch 19 is disengaged, and the first transmission gear 16 is disengaged from the middle shaft 1.
The people ride and trample operating condition, and the foot is incessantly trampled the foot on the crank 2, and the moment of torsion passes through on axis 1 and the second clutch 19 transmission to first drive gear 16 of interlock, and first drive gear 16 rethread idler 18 transmits the moment of torsion to second drive gear 17 on, and then transmits to output shaft 7 and main chain wheel 3 on, and last main chain wheel 3 is on the same drive sprocket 5 that transmits the moment of torsion to electric bicycle through chain 4, and the drive electric bicycle advances. The output shaft 7 is disengaged from the planetary reduction mechanism due to the action of the first clutch 9.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (8)
1. A bottom bracket drive mechanism for an electric bicycle, comprising:
the middle shaft (1) is used for mounting a crank (2) and pedals to bear the riding pedaling force;
the main chain wheel (3) transmits pedal force to a driving chain wheel (5) of the electric bicycle through a sleeved chain (4);
the electric driving mechanism is arranged in the shell (6) together with the middle shaft (1) and is provided with an output shaft (7) which is used for outputting power and is parallel to the middle shaft (1);
it is characterized in that the main chain wheel (3) is fixed on an output shaft (7), and the middle shaft (1) is in transmission connection with the output shaft (7) through a gear transmission mechanism.
2. The bottom bracket drive mechanism of the electric bicycle according to claim 1, wherein the motor drive mechanism comprises a motor core (8), a speed reducing mechanism, a first clutch (9) and the output shaft (7), the core shaft (8 a) of the motor core (8) is connected with the outer ring of the first clutch (9) through the speed reducing mechanism, and the inner ring of the first clutch (9) is fixed on the output shaft (7).
3. The bottom bracket drive mechanism of the electric bicycle according to claim 2, wherein the speed reduction mechanism is a planetary speed reduction mechanism, and comprises a gear ring (10) formed on the inner wall of the housing (6), a plurality of planetary gears (11) distributed around the core shaft (8 a) and meshed with the gear ring (10), the planetary gears (11) are simultaneously meshed with a shaft gear (12) arranged on the core shaft (8 a), a planetary shaft (13) is pivotally arranged at the center of each planetary gear (11), and the planetary shaft (13) is fixed with the outer ring of the first clutch (9).
4. Bottom bracket drive of an electric bicycle according to claim 3, characterized in that a support ring (14) is arranged between the motor core (8) and the planetary reduction gear, which support ring (14) together with the outer ring of the first clutch (9) fixes the planetary shaft (13), which support ring (14) is rotatably mounted on the core shaft (8 a) by means of a coaxial bearing (15).
5. The bottom bracket shaft transmission mechanism of the electric bicycle according to claim 2, wherein the gear transmission mechanism comprises a first transmission gear (16), a second transmission gear (17), an idler gear (18) and a second clutch (19), the first transmission gear (16) is mounted on the bottom bracket shaft (1) by a bearing, the inner side of the first transmission gear (16) is fixed with the outer ring of the second clutch (19), the inner ring of the second clutch (19) is fixed with the bottom bracket shaft (1), the second transmission gear (17) is fixed on the output shaft (7), the idler gear (18) is pivotally mounted in the housing (6), and the idler gear (18) is meshed with both the first transmission gear (16) and the second transmission gear (17).
6. The bottom bracket shaft transmission mechanism of an electric bicycle according to claim 5, further comprising a torque sensor disposed on the bottom bracket shaft or the output shaft; or the torque sensor is arranged at an idler pulley (18) and comprises a sensor deformation support (20) arranged in the shell (6), the idler pulley (18) is pivotally mounted on the sensor deformation support (20), a strain gauge (21) and a PCB (22) electrically connected with the strain gauge (21) are fixed on the sensor deformation support (20), and the PCB (22) is electrically connected with a controller of the electric bicycle for driving the motor core (8) to operate; and the centers of the first transmission gear (16), the second transmission gear (17) and the idle gear (18) are distributed in a triangular shape.
7. Bottom bracket drive mechanism for electric bicycles, according to claim 5, characterized in that the first transmission gear (16) has a larger diameter than the idle gear (18) and the second transmission gear (17) has a smaller diameter than the idle gear (18) or the same diameter as the idle gear (18).
8. Bottom bracket drive mechanism for electric bicycles, according to claim 1, characterized by further comprising at least one auxiliary chain wheel (23) pivotally mounted on the housing (6) for spreading the chain (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385964.8A CN111391959B (en) | 2020-05-09 | 2020-05-09 | Center shaft transmission mechanism of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385964.8A CN111391959B (en) | 2020-05-09 | 2020-05-09 | Center shaft transmission mechanism of electric bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111391959A true CN111391959A (en) | 2020-07-10 |
| CN111391959B CN111391959B (en) | 2024-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010385964.8A Active CN111391959B (en) | 2020-05-09 | 2020-05-09 | Center shaft transmission mechanism of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111391959B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379696A (en) * | 2021-02-06 | 2022-04-22 | 珠海蓝图控制器科技有限公司 | In put motor of chain wheel and different axles of axis sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043582A (en) * | 2016-06-28 | 2016-10-26 | 北京轻客智能科技有限责任公司 | Torque sensing built-in motor and riding device with same |
| CN108516040A (en) * | 2018-05-11 | 2018-09-11 | 苏州万佳电器有限公司 | Drive system is set in five logical repacking formulas of one kind |
| CN110949597A (en) * | 2019-12-28 | 2020-04-03 | 苏州万佳电器有限公司 | Middle-mounted driving device and bicycle with same |
| CN212172443U (en) * | 2020-05-09 | 2020-12-18 | 苏州盛亿电机有限公司 | Middle axle transmission mechanism of electric bicycle |
-
2020
- 2020-05-09 CN CN202010385964.8A patent/CN111391959B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043582A (en) * | 2016-06-28 | 2016-10-26 | 北京轻客智能科技有限责任公司 | Torque sensing built-in motor and riding device with same |
| CN108516040A (en) * | 2018-05-11 | 2018-09-11 | 苏州万佳电器有限公司 | Drive system is set in five logical repacking formulas of one kind |
| CN110949597A (en) * | 2019-12-28 | 2020-04-03 | 苏州万佳电器有限公司 | Middle-mounted driving device and bicycle with same |
| CN212172443U (en) * | 2020-05-09 | 2020-12-18 | 苏州盛亿电机有限公司 | Middle axle transmission mechanism of electric bicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379696A (en) * | 2021-02-06 | 2022-04-22 | 珠海蓝图控制器科技有限公司 | In put motor of chain wheel and different axles of axis sensor |
| CN114379695A (en) * | 2021-02-06 | 2022-04-22 | 珠海蓝图控制器科技有限公司 | Middle motor |
| CN114379695B (en) * | 2021-02-06 | 2023-09-01 | 珠海蓝图运动科技股份有限公司 | Centrally-mounted motor |
| CN114379696B (en) * | 2021-02-06 | 2023-09-01 | 珠海蓝图运动科技股份有限公司 | Middle motor with tooth disc and middle shaft sensor different shafts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111391959B (en) | 2024-10-18 |
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