TW201741190A - A bicycle drive unit - Google Patents

Abstract

A bicycle drive unit includes a motor, which outputs assist force in correspondence with human-power drive force applied to a crankshaft, a crank axle, two planetary gear train, and a clutch mechanism. Motor link planetary gear train on both sides. Crank axle is the human power drive force unit and planetary carrier is the motor power output unit. The switch on or off of motor power is controlled by the crank axle and the controller which is connected with the crank axle.

Description

Bicycle electric power drive

The utility model relates to a bicycle electric power driving device, which provides a bicycle electric power driving device which is simpler in power output, simpler and lighter in components, and more stable in center of gravity.

The conventional electric assist bicycle, which was first mounted on the frame with a motor as a chain link, is currently equipped with a motor front or rear hub motor in the front or rear wheel hub, and a motor at the hub side. Wheel motor. More advanced ones have a device that connects the crankshaft at the bicycle five-way, and the motor is placed in the lower or middle tube to connect the crankshaft. The advanced ones such as the Republic of China patent II523794 electric bicycle hybrid drive: the sun wheel is connected by a pedal crank, the motor is connected to the planet carrier, and the power input end is the power output end, the ring gear is connected to the chain as the power output end, the maximum output is in the outermost ring, and the center of gravity is less. Stability; I473745 bicycle drive unit: the motor is assembled on one side of the structure, the speed reduction mechanism is assembled on the other side of the structure, and the outer rotor rotates, the mechanism is large and the center of gravity is unbalanced; the latter is like the I426035 clutch bicycle power drive and its clutch type Driver: The motor is installed in the seat tube or the lower tube. There is heat dissipation problem. The motor is above the five-way crankshaft and the center of gravity is high. Between the vertical input shaft and the horizontal output shaft, an umbrella-type transmission mechanism is installed to increase the load of the vehicle.

Electric assist bicycles, in addition to being used as mass transit vehicles, are also sports, leisure, and transportation tools for those who are older and weaker; simple, lightweight, and easy to quantify as the focus of demand, the above-mentioned known electric bicycles of various types The driving device is still insufficient in the volume, the assembly and the center of gravity; the invention is centered on the crankshaft, the motor is centered, the center of gravity is stable, and the stability of riding is increased; the symmetrical and identical transmission units are arranged on both sides of the motor, The driving device can be composed of fewer components, has a simple structure, is advantageous for mass production and reduces cost, and makes the electric bicycle become a popular sports and leisure vehicle; and the conventional one-way clutch component is used as the output of the pedal and motor power. Let the pedal and the motor power act separately, and the crankshaft (foot shaft) and the connected sensing member are the control unit for starting the motor or powering off the motor, and enjoy the riding pleasure, which is described as follows: The invention relates to a bicycle electric power driving device, which comprises a motor with an inner rotor as a hollow shaft and a motor on both sides. The same structure and symmetrical star-shaped gear train transmission unit, a bicycle crankshaft suspended through the hollow shaft of the inner rotor and its cranks on both sides, a bicycle large toothed disc, a sensing member, and an arc of a bicycle five-way The adapter member has an outer arc which can be welded to the bicycle lower tube and the seat tube, and the inner arc is screwed to the device. The crankshaft is a pedal shaft, and the central hollow shaft of the two planetary brackets in the star gear train is a motor power output shaft, and the crank shaft has right and left annular buckles, and the central hollow shafts of the right and left planetary brackets are respectively consolidated. One-way outside and inside of the large chainring The clutch and the one-way clutch fixed to the outside of the sensing member and the inner side interact with the driving shaft and the driven shaft, respectively, and the pedal and the motor power are respectively actuated, and the crank shaft (the pedal shaft) and the connected sensing member are respectively a control unit that activates or de-energizes the motor.

The motor has the same structure and a symmetrical star-shaped gear train transmission unit on the right and left sides of the motor. The inner end of the hollow shaft of the motor is a gear structure, which is a sun gear of a star gear system. The sun gears at both ends are linked to a plurality of planetary gears of the star-shaped gear train, and at the same time, the two planetary supports are decelerated in the same direction; the central hollow shaft of the right planetary support is unidirectionally coupled to the one-way clutch fixed on the inner side of the bicycle large toothed disc, the left planet The central hollow shaft of the bracket is unidirectionally coupled to the one-way clutch fixed inside the sensing member; after the bicycle crankshaft is suspended through the hollow shaft of the inner rotor, the right side of the crankshaft is fixed through the coaxial hollow center central hollow shaft bearing central hole After that, the right side annular buckle is consolidated, and the right side annular buckle is unidirectionally coupled to the one-way clutch fixed on the outer side of the bicycle large toothed disc; the left side of the crank shaft is fixed through the coaxial left center planetary support central hollow shaft bearing center After the hole, the left annular buckle is consolidated, and the left annular buckle is unidirectionally coupled to the one-way clutch outside the sensing member. The invention is centered on the crankshaft, the motor is centered, and the symmetrical and identical transmission units are arranged on both sides of the motor, the center of gravity is stable, and the stability of riding is increased; at the same time, the symmetrical and identical transmission unit enables the driving device to be less The components are composed, the structure is simple, the mass production is facilitated and the cost is reduced, so that the electric bicycle is a popular sports and leisure vehicle.

The crankshaft is a pedal shaft, and the central hollow shaft of the planetary bracket is a motor power output shaft, and each of the different one-way clutches is connected in the same direction; the annular buckles on both sides of the crankshaft are respectively fixed to the outer side of the large toothed disc and the sensing member. The one-way clutch is interlocked; the right and left two planet brackets are respectively linked with the one-way clutch fixed to the inner side of the large toothed disc and the sensing member; when the pedal-driven bicycle advances clockwise, the crank shaft is the driving shaft, and the two sides of the ring The buckle is coupled to the one-way clutch fixed on the outer side of the large toothed disc and the sensing member, and pushes the needle in the one-way clutch to make the tightening state, and drives the large toothed disc and the sensing member to rotate in the same direction. Drive the chain to rotate in the same direction to advance the vehicle; at this time, the central hollow shaft of the planetary bracket is the driven shaft, and the needle is fixed in the one-way clutch in the same direction inside the large toothed disc and the sensing member, and is separated. Without interlocking, there will be no motor towed, and the foot load will be increased, and the ride can be started briskly; after the vehicle is started, the plurality of magnetic poles of the sensing member rotate with the crankshaft, and the induction is fixed to the left star gear. Outer cover The sensing coil activates the motor power output; after the motor rotates, the sun gear of the inner rotor hollow shaft is coupled with the planetary gear of the star gear system, and the central hollow shaft of the right and left planetary brackets is connected to the active shaft, and is interlocked and fixed. The one-way clutch on the inner side of the large toothed disc and the sensing member pushes the needle in the one-way clutch to make the tightening state bring the large toothed disc and the sensing member to rotate, and simultaneously drives the chain to rotate in the same direction to advance the vehicle; At this time, the crankshaft is a driven shaft, and the needle is fixed in the one-way clutch in the same direction outside the large toothed disc and the sensing member, and is separated, and the crank of the pedal is in a free state, and there is no double Feet being dragged and turned; when continuing to ride When multiplying, the motor power is continuously output, which achieves the effect of assisting riding; when the foot stops stepping, the plurality of magnetic poles on the sensing member do not sense the sensing coil, and the motor is powered off to stop the power output. The invention adopts a conventional one-way clutch element as an output for configuring the pedal and the motor power, and the crank shaft (the pedal shaft) and the connected sensing member are the control unit for starting the motor or de-energizing the motor. Enjoy the fun of riding.

Instead of the bicycle five-way arc type adapter member, the outer arc can be welded with the bicycle lower tube and the seat tube, and the inner arc can be screwed with the device.

A‧‧‧Motor

A1‧‧‧ inner rotor hollow shaft

A2‧‧‧Outer coil stator

A3‧‧‧Motor housing

A41‧‧‧Right cover

A411‧‧‧Central Perforation

A412‧‧‧ bearing

A413‧‧‧Center hole

A42‧‧‧ left cover

A421‧‧‧Central Perforation

A422‧‧‧ bearing

A423‧‧‧Center hole

1‧‧‧ crankshaft

11‧‧‧Right crank

12‧‧‧ Left crank

13‧‧‧Right ring buckle

14‧‧‧ Left ring buckle

2‧‧‧Spindle

20‧‧‧Central Perforation

21‧‧‧First one-way clutch

211‧‧‧needle needle

22‧‧‧ third one-way clutch

221‧‧‧needle needle

3‧‧‧Sensing components

30‧‧‧Central Perforation

31‧‧‧Second one-way clutch

311‧‧‧needle needle

32‧‧‧fourth one-way clutch

321‧‧‧needle needle

33‧‧‧Multiple magnetic poles

34‧‧‧Sensor coil

B1‧‧‧Right star gear train

B2‧‧‧Left star gear train

C‧‧‧Arc type adapter (not shown)

B11‧‧‧Right star gear system cover

B111‧‧‧Central Perforation

B112‧‧‧ bearing

B113‧‧‧ center hole

B21‧‧‧Left star gear system cover

B211‧‧‧Central Perforation

B212‧‧‧ Bearing

B213‧‧‧Center hole

B12‧‧‧Right Planetary Wheel

B22‧‧‧Left planet wheel

B13‧‧‧Right Planetary Bracket

B131‧‧‧Central hollow shaft

B132‧‧‧ Bearing

B133‧‧‧Center hole

B23‧‧‧Left Planetary Bracket

B231‧‧‧Central hollow shaft

B232‧‧‧ Bearing

B233‧‧‧Center hole

B14‧‧‧Right ring gear

B141‧‧‧Right ring gear housing

B24‧‧‧left ring gear

B241‧‧‧ Left ring gear housing

B15‧‧‧Right Sun Wheel

B25‧‧‧Left Sun Wheel

The first figure is an exploded perspective view of the first embodiment of the present invention.

The second figure is an exploded perspective view of the right half of the first embodiment of the present invention.

The third figure is an exploded perspective view of the left half of the first embodiment of the present invention.

The fourth figure is a cross-sectional view of the first embodiment of the present invention.

FIG. 5 is an axial cross-sectional view showing the operation of the one-way clutch and the large toothed disc when the crankshaft is the driving shaft when the foot is stepped according to the first embodiment of the present invention, mainly showing that the crankshaft is the driving shaft and the one-way clutch is tightly fitted. The state of action.

The sixth figure is the first embodiment of the present invention, the crank shaft is the driving shaft, the central hollow shaft of the planetary bracket is the driven shaft, the central hollow shaft of the planetary bracket and the one-way clutch are axially cut, mainly showing the one-way clutch. Actuated in a state of separation from the central hollow shaft of the planet carrier.

The seventh figure is the first embodiment of the present invention, when the motor is started, the planetary carrier is driven. The central hollow shaft rotates, the central hollow shaft of the planetary carrier is the driving shaft, and the axial sectional view of the one-way clutch and the large toothed disc, mainly shows the action of the central hollow shaft of the planetary bracket and the one-way clutch in a tight state.

FIG. 8 is an axial cross-sectional view showing the one-way clutch and the crankshaft in a state in which the planetary carrier is the driving shaft, the crankshaft is the driven shaft, and the crankshaft and the one-way clutch are actuated when the motor is started according to the first embodiment of the present invention. Actuate the situation.

The following embodiments are used to illustrate the structure and function of the present invention in view of the drawings.

Please refer to the first to fourth figures. The present invention relates to a bicycle electric power driving device, which comprises a motor A having an inner rotor as a hollow shaft, and a symmetrical planetary gear system B1 and B2 on both sides of a motor A. The transmission unit, a bicycle crankshaft 1 and two side cranks 11, 12 suspended by the inner rotor hollow shaft A1, a bicycle large toothed disc 2, a sensing member 3, and an arc-shaped adapter member replacing the bicycle five-way C (not shown), the outer arc is welded to the bicycle lower tube and the seat tube, and the inner arc is screwed to the device. The crankshaft 1 is a pedal axle, the right and left planetary brackets B13 and B23 in the star gear trains B1 and B2 are the motor A power output shafts, and the crankshaft 1 has right and left loop buckles. The rings 13, 14 and the right and left planet supports B13, B23 central hollow shafts B131, B231 are respectively fixed to the outside of the sensing member 3 via the one-way clutches 21, 22 which are fixed to the outside and the inside of the large chainring 2, respectively. The one-way clutch 31, 32 on the inner side interacts with the driving shaft and the driven shaft, respectively, and the pedal and the horse A power are respectively actuated, and the crank shaft 1 (the pedal shaft) and the connected sensing member are the starting motor A. Or a control unit that de-energizes motor A.

Motor A is fixed to the right and left sides of the same structure and symmetrical star gear system B1, B2 transmission unit, motor A inner rotor hollow shaft A1 is geared at both ends, is the right and left star gear system B1 , B2 right, left sun gear B15, B25, when the ring gears B14, B24 are fixed, the two ends of the sun wheel B15, B25 respectively interlocks the plurality of planetary gears B12 and B22 of the right and left star-shaped gear trains B1 and B2, and simultaneously rotates the right and left two planetary brackets B13 and B23, the central hollow shafts B131 and B231 rotate in the same direction, and the right and left two planetary brackets B13, B23 central hollow shafts B131, B231 are motor A power output shaft; right planetary bracket B13 central hollow shaft B131 is unidirectionally coupled to the second one-way clutch 22 fixed inside the bicycle large toothed disc 2, the left planetary bracket B23 central hollow The shaft B231 is unidirectionally coupled to the fourth one-way clutch 32 fixed inside the sensing member 3; after the bicycle crank shaft 1 is suspended through the inner rotor hollow shaft A1, the right side of the crank shaft 1 is fixed through the coaxial right planet bracket B13 After the central hole B133 of the bearing B132 in the central hollow shaft B131, the right annular buckle 13 is consolidated, and the right annular buckle 13 is connected to the first one-way clutch 21 fixed to the outside of the bicycle large toothed disc 2, and is unidirectionally linked. The large toothed disc 2; after the crankshaft 1 is fixed to the right annular buckle 13 , the right end is fixed to the right crank 11 of the bicycle; the left side of the crankshaft 1 is fixed to the left side of the coaxial planet B23 and the bearing B232 of the central hollow shaft B231 After the center hole B233, the left is consolidated The annular buckle 14 and the left annular buckle 14 are connected to the third one-way clutch 31 fixed to the outside of the sensing member 3, and the plurality of magnetic poles 33 are unidirectionally coupled to the sensing member 3; the crankshaft 1 is fixed to the left side. After the looped buckle 14, the left end of the bicycle is further fixed to the left crank 12.

Please refer to the second, third and fifth to eighth diagrams; the right and left ends of the crankshaft 1 respectively fix the bicycle cranks 11, 12, and when the cranks 11 and 12 are stepped, the crankshaft 1 is linked, and the crankshaft 1 is the pedal axle; The two hollow brackets B13 and B23 of the two planetary brackets B131 and B231 are the power output shafts of the motor A, and the different one-way clutches are connected in the same direction. The right side annular buckle 13 of the crank shaft 1 is interlocked with the first one-way clutch 21 fixed to the outside of the large toothed disc 2; the left side annular buckle 14 of the crank shaft 1 and the second side fixed to the outside of the sensing member 3 The one-way clutch 31 is interlocked; when the foot drives the bicycle to advance in the clockwise direction, the crankshaft 1 is a driving shaft, and the first and second one-way clutches 21 and 31 respectively fixed to the outer side of the large toothed disc 2 and the sensing member 3 are interlocked. Pushing the needles 211, 311 of the first and second one-way clutches 21, 31 to be in a tight state, and driving the large toothed disc 2 and the sensing member 3 to rotate in the same direction, and simultaneously driving the chain to rotate in the same direction. The vehicle is advanced; at this time, the central hollow shafts B131 and B231 of the two planetary brackets B13 and B23 are driven shafts, and the third and fourth one-way clutches 22 and 32 are fixed in the same direction inside the large toothed disc 2 and the sensing member 3. When rotating in the clockwise direction, in the case where the right and left planetary brackets B13 and B23 are driven by the central hollow shafts B131 and B231, the third and fourth ones are fixed to the inside of the large chainring 2 and the sensing member 3. The needle rollers 221, 321 in the clutches 22, 32 are pushed away in the counterclockwise direction, and are separated, without interlocking the right and left lines. The central hollow shaft of the stent, without interlocking the motor, no motor A towed circumstances, increasing the load leg muscles, light may start riding.

After the vehicle is started, the plurality of magnetic poles 33 of the sensing member 3 rotate with the crankshaft 1 and are inductively fixed to the sensing coil 34 of the left star-shaped gear train cover B21 to start the motor A power output; after the motor A rotates, the motor A rotates. The right and left ends of the rotor hollow shaft A1, the sun gears B15 and B25, respectively link the planetary gears B12 and B22 of the star-shaped gear trains B1 and B2, and simultaneously link the right and left two planetary brackets B13 and B23 to the central hollow shafts B131 and B231. Become the master shaft and interlock with the large chainring 2 And the third and fourth one-way clutches 22 and 32 on the inner side of the sensing member 3 push the needles 221 and 321 in the third and fourth one-way clutches 22 and 32 to rotate in the same direction to be in a tight state. The large toothed disc 2 and the sensing member 3 rotate, and simultaneously drive the chain to rotate in the same direction to advance the vehicle; at this time, the crank shaft 1 is a driven shaft, and is fixed to the first side of the large toothed disc 2 and the sensing member 3 in the same direction. When the second one-way clutches 21 and 31 rotate in the clockwise direction, when the crankshaft 1 is driven, the first and second one-way clutches are fixed to the outside of the large toothed disc 2 and the sensing member 3 The needles 211, 311 in 21, 31 are pushed away in the counterclockwise direction, and are in a separated state, and the cranks 11 and 12 of the foot are in a free state, and there is no possibility that the feet are dragged and rotated; At the same time, the power of the motor A is continuously outputted to achieve the effect of assisting riding; when the foot stops stepping, the plurality of magnetic poles 33 on the sensing member 3 do not sense the sensing coil 34, and the motor A is powered off to stop the power output.

Please refer to the second, third and fourth figures, and further describe the technical features and actions of the present invention as follows: The present invention relates to a bicycle electric power driving device comprising a motor A having an inner rotor as a hollow shaft, wherein the inner rotor hollow shaft A1 The two ends are gear structures. The gear structure at both ends becomes the right and left sun gears B15 and B25 of the right and left star gear trains B1 and B2; the motor outer coil stator A2 is fixed to the motor casing A3, and the outer coil stator A2 is electrically connected. The connection controller (not shown in the figure), the motor A has a right outer cover A41, the right outer cover A41 has a central perforation A411, the central perforation A411 is fixed with a bearing A412; the left outer cover A42 has a central perforation A421 , A bearing A422 is fixed on the central perforation A421, and the sun gear B15 of the right-hand gear structure of the inner rotor hollow shaft A1 is fixed to the center hole A413 of the bearing A412 of the right outer cover A41 of the motor A, and the right star-shaped gear train B1 The planetary wheel B12 is interlocked, and the sun gear B25 of the left gear structure of the inner rotor hollow shaft A1 is engaged with the planetary wheel B22 of the left star gear train B2 after being consolidated through the center hole A423 of the left outer cover A42 bearing A422 of the motor A.

A motor A has a same structure and a symmetrical star gear system B1, B2 transmission unit, and is separated from the motor cover A41, A42, the right star gear system B1 has a right outer cover B11, a plurality of planetary wheels B12 , a right planetary carrier B13 connecting a plurality of planetary gears B12, a ring gear B14 and its outer casing B141, and a sun gear B15 of a right end gear structure of the inner rotor hollow shaft A1; a left star gear system B2 having a left outer cover B21, a plurality of The planetary gear B22, the left planetary carrier B23 connecting the plurality of planetary gears B22, the ring gear B24 and its outer casing B241, and the sun gear B25 of the gear structure at both ends of the inner rotor hollow shaft A1.

The right star-shaped gear system cover B11 has a central perforation B111 concentric with the crankshaft 1, and a bearing B112 is fixed on the perforation; the right planetary bracket B13 has a central hollow shaft B131 concentric with the crankshaft 1 at the center, and the central hollow After the shaft B131 is consolidated and passed through the center hole B113 of the bearing B112 in the central perforation B111 of the right star-shaped gear system cover B11, the third one-way clutch 22 fixed to the inner side of the bicycle large toothed disc 2 is unidirectionally coupled with the large teeth of the bicycle. Disk 2.

The left star gear system cover B21 has a central perforation B211 concentric with the crankshaft 1, a bearing B212 is fixed on the perforation, and a left planet bracket B23 has a center The central hollow shaft B231 concentric with the crankshaft 1 and the central hollow shaft B231 are affixed through the central hole B213 of the bearing B212 in the central perforation B211 of the left star gear system cover B21, and are unidirectionally coupled to the sensing member 3 The fourth one-way clutch 32 on the inner side interlocks the plurality of magnetic poles 33 on the sensing member 3.

The motor A and the star-shaped gear trains B1 and B2 on both sides are devices that can be screwed to each other: the outer coil stator A2 of the motor A is fixed to the motor casing A3, and the right and left outer covers A41 and A42 of the motor A are the stars. a partition between the gear trains B1 and B2; a casing B141 and B241 of the two-chain gear ring gears B14 and B24, and right and left outer covers B11 and B21 and a motor casing A3 and right and left outer covers A41 and A42, It is a device that can be screwed to each other.

A bicycle crankshaft 1, the right and left ends of the crankshaft 1 respectively fix the bicycle cranks 11, 12, the crankshafts 11 and 12 are interlocked with the crankshaft 1, and the crankshaft 1 is the pedal axle; the crankshaft 1 is suspended on both sides. The inner rotor hollow shaft A1 of the motor A is respectively fixed and passed through the central hole B133 of the bearing B132 which is pivotally disposed in the central hollow shaft B131 of the right planetary bracket B13, and the central hole B233 of the bearing B232 of the central hollow shaft B231 of the left planetary bracket B23 The right side of the crankshaft 1 is fixed to the central hole B133 of the bearing B132 in the central hollow shaft B131 of the right planet carrier B13, and then the right annular buckle 13 is consolidated, and the right annular buckle 13 is ligated to the bicycle teeth. The first one-way clutch 21 on the outer side of the disk 2 unidirectionally interlocks the large toothed disc 2; after the crankshaft 1 is fixed to the right annular buckle 13 , the right end of the bicycle is fixed to the right crank 11; the left side of the crankshaft 1 is fixedly worn. After passing through the center hole B233 of the bearing B232 in the central hollow shaft B231 of the left planet carrier B23, the left annular ring is then consolidated. 14; the left annular buckle 14 is linked to the second one-way clutch 31 fixed to the outside of the sensing member 3, and the plurality of magnetic poles 33 are unidirectionally coupled to the sensing member 3; after the crankshaft is fixed to the left annular buckle, The left end re-consolidates the left crank of the bicycle; the plurality of magnetic poles 33 correspond to the sensing coils 34 mounted on the outer cover B21 of the left star-shaped gear train B2, and the sensing coils 34 sense a plurality of magnetic poles 33 to control the starting and de-energizing of the motor A.

A bicycle large toothed disc 2 is disposed on the right side of the right star gear system B1 transmission unit, the outer edge of the large toothed disc 2 is toothed to connect the chain, and the center has a central perforation 20 coaxial with the crank shaft 1 , and the aperture is fixed and fixed The first and third one-way clutches 21, 22 on the outer and inner sides are identical in center hole, and the outer side of the large toothed disc 2 is fixed to the first one-way clutch 21 of the crank ring 1 on the right side of the crankshaft 1, the large tooth The inside of the disk 2 is fixed to a third one-way clutch 22 that is interlocked with the central hollow shaft B131 of the right planet carrier B13.

A sensing member 3 is disposed on the left side of the left star gear train B2, and a central through hole 30 coaxial with the crank shaft 1 is disposed in the center of the sensing member 3, and the aperture is fixed to the outer and inner sides thereof. The fourth one-way clutches 31 and 32 have the same central hole, the third one-way clutch 31 which is connected to the left side annular ring 14 of the crankshaft 1 and the fourth one-way clutch 31 which is connected with the central hollow shaft B231 of the left planetary bracket B23. To the clutch 32. A plurality of magnetic poles 33 are embedded in the outer edge of the fourth one-way clutch 32 on the inner side of the sensing member 3, and the plurality of magnetic poles 33 correspond to the sensing coils 34 embedded in the outer star-shaped gear train cover B21, and are disposed on the sensing member 3 Rotating or stopping, driving a plurality of magnetic poles 33 to rotate or stop, inductive sensing coil 34, to control the start and power off of motor A.

Instead of the bicycle five-way arc type adapter member C (not shown), the outer arc is welded to the bicycle lower tube and the seat tube, and the inner arc is screwed to the device.

A‧‧‧Motor

A1‧‧‧ inner rotor hollow shaft

1‧‧‧ crankshaft

11‧‧‧Right crank

12‧‧‧ Left crank

13‧‧‧Right ring buckle

14‧‧‧ Left ring buckle

2‧‧‧Spindle

21‧‧‧First one-way clutch

3‧‧‧Sensing components

32‧‧‧fourth one-way clutch

33‧‧‧Multiple sensing poles

B11‧‧‧Right star gear system cover

B112‧‧‧ bearing

B22‧‧‧Left planet wheel

B131‧‧‧Central hollow shaft

B132‧‧‧ Bearing

B231‧‧‧Central hollow shaft

B24‧‧‧left ring gear

B241‧‧‧ Left ring gear housing

B15‧‧‧Right Sun Wheel

Claims (8)

The invention relates to a bicycle electric power driving device, which comprises a motor with a hollow inner shaft as a hollow shaft, a star-shaped gear train transmission unit with the same structure and a symmetric structure on both sides of the motor, and a bicycle suspended through the inner rotor hollow shaft. The crankshaft and the cranks on both sides, a bicycle large toothed disc, a sensing member, and an arc-type adapter member that replaces the bicycle five-way, the outer arc is welded with the bicycle lower tube and the seat tube, and the inner arc is Screw with this device. The crankshaft is a pedal shaft, and the central hollow shaft of the two planetary brackets in the star gear train is a motor power output shaft; the crankshaft has right and left annular buckles, and the central hollow shafts of the right and left planet brackets are respectively consolidated. The one-way clutch on the outer side and the inner side of the large toothed disc, and the one-way clutch fixed on the outer side and the inner side of the sensing member interact with the driving shaft and the driven shaft, respectively, and the pedal and the motor power are respectively actuated, and the crank shaft (foot) The pedaling member and the connected sensing member are control units for starting the motor or de-energizing the motor. For example, in a bicycle electric assist drive device according to the first aspect of the patent application, the motor and the star-shaped gear trains on both sides are devices that can be screwed to each other. For example, in a bicycle electric power driving device according to claim 1, the crankshaft is fixed at both ends of the crankshaft, the crankshaft is interlocked when the crank is stepped, and the crankshaft is the pedal axle; the left and right sides of the motor are consolidated on the left and right sides. A star-shaped gear train with the same structure and symmetry, the inner end of the hollow shaft of the inner rotor of the motor is a gear structure, and is a sun gear of the right and left star-shaped gear trains. When the ring gear is fixed, the sun wheels at both ends are respectively linked The plurality of planetary gears of the right and left star-shaped gear trains simultaneously rotate the central hollow shafts of the right and left planetary supports in the same direction, and the central hollow shafts of the right and left planetary supports are motor power output shafts. For example, in a bicycle electric power driving device according to the first and third aspects of the patent application, the central hollow shaft of the right planetary bracket is coupled to the one-way clutch fixed on the inner side of the bicycle large toothed disc, and the one-way linkage is self-connected. The large toothed disc is driven; the central hollow shaft of the left planetary bracket is coupled to the one-way clutch fixed inside the sensing member, and the plurality of magnetic poles are unidirectionally linked to the sensing member. For example, in a bicycle electric power driving device according to claim 1, the right side annular buckle of the crank shaft is coupled to a one-way clutch fixed on the outer side of the bicycle large toothed disc, the unidirectional interlocking large toothed disc, and the crank shaft is fixed on the right side ring. After the buckle is buckled, the right end of the bicycle is then fixed to the right crank; the left side of the crankshaft is interlocked with the one-way clutch fixed to the outside of the sensing member, and the plurality of magnetic poles are unidirectionally linked to the sensing member, and the crankshaft is fixed to the left side of the crankshaft. After the ring buckle, the left end re-consolidates the left crank of the bicycle; the plurality of magnetic poles correspond to the sensing coils installed on the outer cover of the star gear system, and the sensing coil senses a plurality of magnetic poles to control the starting and powering of the motor. For example, in a bicycle electric power driving device according to the first aspect of the patent application, when the bicycle is driven forward, the crank shaft is a driving shaft, and the one-way clutch fixed to the outside of the large toothed disc and the sensing member is respectively driven to drive the large tooth. The disc and the sensing member rotate in the same direction; at this time, the central hollow shaft of the two planetary brackets is a driven shaft, and the one-way clutch that is fixed in the same direction inside the large toothed disc and the sensing member rotates clockwise, right and left When the central hollow shaft of the planetary carrier is driven, the motor is not linked. For example, in a bicycle electric power driving device according to the first aspect of the patent application, after the vehicle is started, a plurality of magnetic poles of the sensing member rotate along the crank shaft, and the sensing coil is inductively fixed to the outer cover of the left star gear system, and the starting motor is started. Power output; after the motor rotates, the inner and inner hollow shafts of the inner rotor hollow shaft are simultaneously connected to the central hollow shaft of the two planetary brackets to become the driving shaft, and the one-way clutch fixed on the inner side of the large toothed disc and the sensing member is driven to drive the large toothed disc and the transmission. The sensing member rotates; at this time, the crank shaft is a driven shaft, and the one-way clutch that is fixed to the outside of the large toothed disc and the sensing member rotates clockwise, and the crank of the foot is driven when the crank shaft is driven. In a free state; when the foot stops stepping on When moving, the plurality of magnetic poles on the sensing member do not sense the sensing coil, and the motor is powered off. For example, in a bicycle electric power driving device according to items 1 and 11 of the patent application, there is an arc-type adapter member for replacing a bicycle five-way, the outer arc of which can be welded with the bicycle lower tube and the seat tube, and the inner arc is Screw with this device.