CN114212178B

CN114212178B - Power device of new energy electric bicycle

Info

Publication number: CN114212178B
Application number: CN202210159952.2A
Authority: CN
Inventors: 沈胜阳; 高永军
Original assignee: Pinshangjia Bicycle Shenzhen Co ltd
Current assignee: Pinshangjia Bicycle Shenzhen Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-05-13
Anticipated expiration: 2042-02-22
Also published as: CN114212178A

Abstract

The invention discloses a power device of a new energy electric bicycle, which comprises a power box, wherein a first rotating shaft and a second rotating shaft are rotatably arranged on the inner wall of the power box, the first rotating shaft and the second rotating shaft are in transmission connection through a transmission assembly, and a chain wheel in transmission connection with wheels of the electric bicycle is fixed at one end of the second rotating shaft, which penetrates out of the power box; and a motor for driving the first rotating shaft to rotate is installed at the inner top of the power box. The invention not only can recover kinetic energy, but also has the effect of reducing the speed of the second rotating shaft by the resistance generated when the rotating shaft rotates to generate electricity, so that the speed of the electric vehicle when going downhill cannot be much higher than the maximum speed per hour on a flat road of the electric vehicle, and the invention has the effect of limiting the speed when going downhill in phase, thereby reducing the burden of a braking system, playing a certain protection role for the braking system of the electric vehicle, reducing the abrasion of a brake pad and prolonging the service life of the braking system.

Description

Power device of new energy electric bicycle

Technical Field

The invention relates to the technical field of new energy electric vehicles, in particular to a power device of a new energy electric bicycle.

Background

An electric bicycle is an integrated transportation tool which is based on a common bicycle and is provided with a power device, a controller, a rotating handle brake handle and other operation components and a display instrument system on the basis of a storage battery as an auxiliary energy source.

Kinetic energy of the conventional electric bicycle during downhill running cannot be recycled, and when the electric bicycle needs to be braked, the kinetic energy can be converted into heat energy to be consumed, so that energy waste is caused, the brake is worn greatly during braking, and the service life of the brake is shortened.

Disclosure of Invention

The invention aims to provide a power device of a new energy electric bicycle, which can recover kinetic energy, and the resistance generated when a rotating shaft rotates to generate electricity can play a role in reducing the speed of a second rotating shaft, so that the electric bicycle has a speed reducing effect when descending a slope, the speed of the electric bicycle when descending the slope is not much higher than the maximum speed on the flat road of the electric bicycle, the effect of limiting the speed when descending the slope is changed, the burden of a braking system can be reduced, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: new forms of energy electric bicycle's power device, including the headstock, the inner wall of headstock rotates installs first pivot and second pivot, connect through the transmission assembly transmission between first pivot and the second pivot, the one end that the headstock was worn out in the second pivot is fixed with the sprocket of being connected with electric bicycle's wheel transmission.

The power box comprises a power box, a motor, a storage battery, a generator, a rotation speed detector and a linkage assembly, wherein the motor is used for driving a first rotating shaft to rotate is installed at the inner top of the power box, the storage battery used for supplying power to the motor is installed on the inner wall of the power box, the generator is installed on the inner wall of the power box, the rotation speed detector is installed on the inner wall, close to a second rotating shaft, of the power box, and when the rotation speed detector detects that the rotation speed of the second rotating shaft exceeds a preset value, the rotation speed detector enables the first rotating shaft to drive the rotating shaft on the generator to rotate through the linkage assembly to generate power and charge the storage battery.

Preferably, the linkage subassembly is including fixing the mounting panel at the headstock inner wall, the spout has been seted up at the top of mounting panel, and installs slidable slider in the spout, the bearing frame is installed at the top of slider, and the axle center of bearing frame installs the second gear through the installation axle rotation, the one end of axis of rotation is fixed with the third gear, through drive gear meshing transmission between second gear and the third gear, the outer wall that first pivot is close to the second gear is fixed with first gear, works as the rotational speed detector detects the rotational speed of second pivot and can be close to first gear removal through signal of telecommunication control slider when surpassing the default.

Preferably, the inner wall of spout installs the second motor, the screw rod is installed to the one end of second motor output shaft, just the one end of screw rod runs through the slider and rotates the inner wall of installing at the spout, the screw rod and the department threaded connection that runs through of slider, rotational speed detector and second motor electric connection.

Preferably, the linkage subassembly is still including fixing the fifth gear at the pivot tip, the outer wall of first pivot is fixed with the fourth gear, the pendulum rod is installed in the outer wall rotation of axis of rotation, the outer wall rotation that the fifth gear was kept away from to the pendulum rod is installed the sixth gear, through drive mechanism synchronous drive between sixth gear and the fifth gear, the inside wall rotation that the headstock is close to the pendulum rod is installed electric telescopic handle, the outer wall at the pendulum rod is installed in the rotation of the one end of electric telescopic handle output shaft, works as can stretch out through electric signal control electric telescopic handle's output when rotational speed detector detects the rotational speed of second pivot and exceeds the default, drives the pendulum rod and rotates and make sixth gear and fourth gear contact meshing.

Preferably, the transmission assembly comprises two second conical disks, the two second conical disks are slidably mounted on the outer wall of the first rotating shaft through a flat key, the conical surfaces of the two second conical disks are opposite, the outer wall of the second rotating shaft is slidably mounted on the two first conical disks through a flat key, the conical surfaces of the two first conical disks are opposite, the conical surfaces of the two second conical disks are in transmission connection with the conical surfaces of the two first conical disks through a transmission belt, fixing pieces are fixed on the outer wall of the first rotating shaft on the back surfaces of the two first conical disks, springs sleeved on the outer surface of the first rotating shaft are respectively mounted between the two fixing pieces and the two first conical disks, an adjusting mechanism is arranged on the outer wall of the first rotating shaft, when the rotating speed of the first rotating shaft is faster, the adjusting mechanism can enable the two second conical disks to move back to back, when the rotating speed of the first rotating shaft is slower, the adjusting mechanism can make the two second conical discs move relatively.

Preferably, adjustment mechanism includes two sets of adjusting part, and two sets of adjusting part set up the outer wall in first pivot, and two second cones dish is located between two sets of adjusting part, adjusting part is including fixing the fixed block at first pivot outer wall, the outer wall of fixed block is fixed with a plurality of fixed frames that are the annular and distribute, every the equal slidable mounting of inner wall of fixed frame has the burden weight, be connected with the extension spring between the inner wall that burden weight and fixed frame are close to the fixed block, it has the connecting rod to articulate between the outer wall of burden weight and the outer wall of second cones dish.

Preferably, the storage batteries are provided with two groups, the two groups of storage batteries can switch to supply power to the motor, the generator is electrically connected with the two storage batteries respectively, and when one of the storage batteries supplies power to the motor, the generator is electrically connected with the other storage battery.

Preferably, the driving wheels are mounted at one end of the output shaft of the motor and on the outer wall of the first rotating shaft, and the two driving wheels are in transmission connection through a belt.

Compared with the prior art, the invention has the following beneficial effects:

firstly, the invention detects the rotating speed of the second rotating shaft through the rotating speed detector, when the rotating speed of the wheel driving chain wheel is larger than the rotating speed of the first rotating shaft driving the second rotating shaft, namely when the speed of the electric vehicle when going downhill is larger than the self maximum speed per hour of the electric vehicle on a flat road, the rotating speed detector detects that the rotating speed of the second rotating shaft exceeds the preset value, then the rotating speed detector can lead the first rotating shaft to drive the rotating shaft on the generator to rotate through the linkage component to generate electricity and charge the storage battery, thus not only recovering the kinetic energy, but also having the effect of reducing the speed of the second rotating shaft due to the resistance when the rotating shaft rotates to generate electricity, thereby having the effect of reducing the speed of the electric vehicle when going downhill, leading the speed of the electric vehicle when going downhill not to be too much larger than the maximum speed per hour on the flat road, having the effect of limiting the speed when changing to be downslope, and reducing the burden of a braking system, therefore, the brake system of the electric vehicle is protected to a certain extent, the abrasion of the brake pad is reduced, and the service life of the brake system is prolonged.

In the downhill road section, after the rotation speed detector is triggered, the forward transmission is changed into reverse transmission, namely the wheels drive the second rotating shaft to drive the first rotating shaft to transmit, and meanwhile, when the first conical disc drives the second conical disc to transmit, the big wheel drives the small wheel to rotate, so that the rotation speed of the first gear is faster, and the power generation efficiency of the generator is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic right side view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic perspective view of the present invention taken along section B-B of FIG. 2;

FIG. 5 is an enlarged view of FIG. 4 at C;

FIG. 6 is a schematic cross-sectional perspective view of a linkage assembly according to a first embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a linkage assembly according to a second embodiment of the present invention.

In the figure: 1. a power box; 2. a sprocket; 3. a first rotating shaft; 4. a motor; 5. a rotation speed detector; 6. a second rotating shaft; 7. a fixing sheet; 8. a spring; 9. a first conical disk; 10. a second conical disk; 11. a fixing frame; 12. a negative weight block; 13. a connecting rod; 14. a storage battery; 15. a driving wheel; 16. a first gear; 17. a second gear; 18. a transmission gear; 19. a third gear; 20. a generator; 21. a fixed block; 22. a tension spring; 23. mounting a plate; 24. a slider; 25. a rotating shaft; 26. a screw; 27. a second motor; 28. a chute; 29. a swing rod; 30. a sixth gear; 31. a fourth gear; 32. a fifth gear; 33. an electric telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: new forms of energy electric bicycle's power device, including headstock 1, headstock 1's inner wall rotates installs first pivot 3 and second pivot 6, connects through the transmission assembly transmission between first pivot 3 and the second pivot 6, and second pivot 6 wears out the one end of headstock 1 and is fixed with the sprocket 2 of being connected with electric bicycle's wheel transmission.

The motor 4 that is used for driving first pivot 3 pivoted is installed at the interior top of headstock 1, the battery 14 that supplies power to motor 4 is installed to the inner wall of headstock 1, inner wall installation generator 20 of headstock 1, headstock 1 is close to the inner wall of second pivot 6 and installs rotational speed detector 5, when rotational speed detector 5 detected the rotational speed of second pivot 6 and exceeded the default, rotational speed detector 5 can make first pivot 3 drive the axis of rotation 25 rotation electricity generation on the generator 20 through the linkage subassembly, and charge battery 14.

In the first embodiment, when the electric bicycle is ridden, the electric door handle is rotated, then the controller can start the motor 4, the motor 4 is started by the power supply of the storage battery 14, the output shaft drives the first rotating shaft 3 to rotate, then the second rotating shaft 6 is driven to rotate by the transmission of the transmission assembly, and then the chain wheel 2 is driven to rotate, so that the electric bicycle is driven to run.

When the electric bicycle is in a downhill section, the speed of the electric bicycle is increased, meanwhile, the wheel drives the chain wheel 2 to rotate, the electric door handle can be loosened, then the electric bicycle runs under the action of self inertia, so that the transmission mode is changed into that the wheel drives the chain wheel 2 to rotate, then the chain wheel 2 drives the first rotating shaft 3 to rotate through the transmission component, when the rotating speed of the wheel driving chain wheel 2 is higher than the rotating speed of the first rotating shaft 3 driving the second rotating shaft 6, namely when the speed of the electric bicycle in the downhill is higher than the maximum speed of the electric bicycle on a flat road, the rotating speed detector 5 detects that the rotating speed of the second rotating shaft 6 exceeds a preset value, then the rotating shaft 3 drives the rotating shaft 25 on the generator 20 to rotate through the linkage component to generate electricity, and the storage battery 14 is charged, so that the kinetic energy can be recycled, and the resistance generated when the rotating shaft 25 rotates to have the effect of reducing the speed of the second rotating shaft 6, therefore, the electric vehicle has a speed reduction effect when descending a slope, the speed of the electric vehicle when descending the slope is not much higher than the maximum speed per hour on a flat road of the electric vehicle, the effect of limiting the speed is achieved when descending the slope in a phase-changing manner, the burden of a braking system can be reduced, the braking system of the electric vehicle is protected to a certain extent, the abrasion of a brake pad is reduced, and the service life of the braking system is prolonged.

Further, the linkage assembly comprises a mounting plate 23 fixed on the inner wall of the power box 1, a sliding groove 28 is formed in the top of the mounting plate 23, a slidable sliding block 24 is installed in the sliding groove 28, a bearing seat is installed at the top of the sliding block 24, a second gear 17 is installed on the axis of the bearing seat in a rotating mode through a mounting shaft, a third gear 19 is fixed to one end of a rotating shaft 25, the second gear 17 is in meshing transmission with the third gear 19 through a transmission gear 18, a first gear 16 is fixed to the outer wall, close to the second gear 17, of the first rotating shaft 3, and when the rotating speed detector 5 detects that the rotating speed of the second rotating shaft 6 exceeds a preset value, the sliding block 24 is controlled to move close to the first gear 16 through an electric signal.

When the rotating speed detector 5 detects that the rotating speed of the second rotating shaft 6 exceeds a preset value, the sliding block 24 is controlled to move close to the first gear 16 through an electric signal, referring to fig. 6, when the sliding block 24 moves, the second gear 17 can be contacted and meshed with the first gear 16, then the first rotating shaft 3 drives the first gear 16 to rotate, the second gear 17 is driven to rotate, and under the transmission action of the third gear 19, the third gear 19 is driven to rotate, so that the rotating shaft 25 is driven to rotate, and the generator 20 is enabled to generate electricity to charge the storage battery 14.

Meanwhile, due to the loss among the first gear 16, the second gear 17 and the third gear 19, the effect of reducing the speed of the first rotating shaft 3 can be achieved, so that the electric vehicle can be reduced in speed, especially when the electric vehicle runs on long slopes such as mountains, the burden of a braking system can be further reduced, and meanwhile, when the electric vehicle needs to be braked and stopped, the purpose of quickly braking and calming the vehicle can be achieved.

Further, a second motor 27 is installed on the inner wall of the sliding chute 28, a screw 26 is installed at one end of an output shaft of the second motor 27, one end of the screw 26 penetrates through the sliding block 24 and is rotatably installed on the inner wall of the sliding chute 28, the penetrating position of the screw 26 and the sliding block 24 is in threaded connection, and the rotating speed detector 5 is electrically connected with the second motor 27.

When the rotation speed detector 5 detects that the rotation speed of the second rotating shaft 6 exceeds the preset value, the second motor 27 is controlled to be started through an electric signal, the output shaft of the second motor 27 rotates to drive the screw 26 to rotate, the sliding block 24 moves towards the direction close to the first gear 16, the second gear 17 is meshed with the first gear 16, then when the rotation speed detector 5 detects that the rotation speed of the second rotating shaft 6 is lower than the preset value, the output shaft of the second motor 27 is controlled to rotate reversely through the electric signal, the sliding block 24 moves reversely, meanwhile, the first gear 16 is disengaged from the second gear 17, power generation is stopped, and meanwhile, the resistance of deceleration also disappears.

Further, the linkage assembly further comprises a fifth gear 32 fixed at the end of the rotating shaft 25, a fourth gear 31 is fixed on the outer wall of the first rotating shaft 3, a swing rod 29 is rotatably installed on the outer wall of the rotating shaft 25, a sixth gear 30 is rotatably installed on the outer wall, far away from the fifth gear 32, of the swing rod 29, the sixth gear 30 and the fifth gear 32 are in synchronous transmission through a transmission mechanism, an electric telescopic rod 33 is rotatably installed on the inner side wall, close to the swing rod 29, of the power box 1, one end of an output shaft of the electric telescopic rod 33 is rotatably installed on the outer wall of the swing rod 29, when the rotating speed detector 5 detects that the rotating speed of the second rotating shaft 6 exceeds a preset value, the output end of the electric telescopic rod 33 is controlled to extend out through an electric signal, the swing rod 29 is driven to rotate, and the sixth gear 30 is in contact engagement with the fourth gear 31.

In the second embodiment, different from the first embodiment, when the rotation speed detector 5 detects that the rotation speed of the second rotating shaft 6 exceeds the preset value, the output end of the electric telescopic rod 33 is controlled to extend through an electric signal, so as to drive the swing rod 29 to rotate and enable the sixth gear 30 to be in contact engagement with the fourth gear 31, then when the first rotating shaft 3 rotates, the fourth gear 31 drives the sixth gear 30 to rotate, then under the action of the transmission mechanism, the fifth gear 32 synchronously rotates and drives the rotating shaft 25 to rotate, so that the generator 20 can generate electricity, conversely, when the rotation speed detector 5 detects that the rotation speed of the second rotating shaft 6 is lower than the preset value, the output end of the electric telescopic rod 33 is controlled to contract through an electric signal, and then the swing rod 29 is driven to swing so as to enable the sixth gear 30 to be disengaged from the fourth gear 31.

The transmission mechanism can achieve the effect of synchronous transmission through the transmission of the belt pulley and the belt, and compared with the first embodiment, the second embodiment has smaller self energy loss and can be suitable for the road sections with not very long and not very steep slopes.

Further, the transmission assembly comprises two second conical disks 10, the two second conical disks 10 are slidably mounted on the outer wall of the first rotating shaft 3 through a flat key, the conical surfaces of the two second conical disks 10 are opposite, the outer wall of the second rotating shaft 6 is slidably mounted with two first conical disks 9 through a flat key, the conical surfaces of the two first conical disks 9 are opposite, the conical surfaces of the two second conical disks 10 are in transmission connection with the conical surfaces of the two first conical disks 9 through a transmission belt, the outer wall of the first rotating shaft 3, which is positioned on the back of the two first conical disks 9, is fixedly provided with a fixing piece 7, a spring 8 which is sleeved on the outer surface of the first rotating shaft 3 is respectively mounted between the two fixing pieces 7 and the two first conical disks 9, the outer wall of the first rotating shaft 3 is provided with an adjusting mechanism, when the rotating speed of the first rotating shaft 3 is faster, the adjusting mechanism can enable the two second conical disks 10 to move back to back, when the rotating speed of the first rotating shaft 3 is slower, the adjustment mechanism causes the two second conical discs 10 to move relative to each other.

When the electric vehicle is stopped, under the action of the adjusting mechanism, the distance between the two second conical disks 10 is enabled to be nearest, meanwhile, the diameter of the driving wheel formed by the two second conical disks 10 is also the largest, under the pulling action of the driving belt, the two first conical disks 9 can be mutually far away, meanwhile, the two springs 8 are compressed, at the moment, the big wheel drives the small wheel to rotate, so that labor is saved during starting or on an uphill road section, the loss of electric quantity can be reduced to a certain extent, then, along with the acceleration of the rotation of the first rotating shaft 3, under the action of the adjusting mechanism, the two second conical disks 10 move back and forth, simultaneously under the effect of two springs 8 elasticity, two first conical disks 9 are close to each other, have become the steamboat this moment and have driven big round of rotation to can make the speed of electric motor car improve, through the continuous change of drive ratio, can make the electric motor car in the start-up stage with the stage transmission efficiency of running higher, the side has reduced the loss of energy.

On the downhill road section, after the rotation speed detector 5 is triggered, the forward transmission is changed into reverse transmission, that is, the wheels drive the second rotating shaft 6 to drive the first rotating shaft 3 to transmit, and meanwhile, when the first conical disc 9 drives the second conical disc 10 to transmit, the large wheel drives the small wheel to rotate, so that the rotation speed of the first gear 16 is faster, and the power generation efficiency of the power generator 20 is improved.

Further, adjustment mechanism includes two sets of adjusting part, two sets of adjusting part set up the outer wall at first pivot 3, and two second cones 10 are located between two sets of adjusting part, adjusting part is including fixing the fixed block 21 at 3 outer walls of first pivot, the outer wall of fixed block 21 is fixed with a plurality of fixed frames 11 that are the annular and distribute, the equal slidable mounting of the inner wall of every fixed frame 11 has burden weight 12, it is connected with extension spring 22 to bear a burden between 12 and the fixed inner wall that fixed frame 11 is close to fixed block 21, it has connecting rod 13 to articulate between the outer wall of burden weight 12 and the outer wall of second cones 10.

When the first rotating shaft 3 rotates, the fixed frame 11 and the weight bearing block 12 therein are driven to rotate together, at this time, under the action of centrifugal force, the weight bearing block 12 slides in the direction away from the first rotating shaft 3, the tension spring 22 is simultaneously lengthened, under the connecting action of the connecting rod 13, the two second cone discs 10 can be separated from each other, then when the speed of the first rotating shaft 3 is reduced, under the tensile force of the tension spring 22, the weight bearing block 12 can reset, and the two second cone discs 10 can approach each other, so that the effect of changing the transmission ratio can be achieved through the change of the rotating speed of the first rotating shaft 3, when the first rotating shaft 3 stops rotating, under the tensile force of the tension spring 22, the weight bearing block 12 can be closer to the first rotating shaft 3, and under the action of the connecting rod 13, the distance between the two second cone discs 10 is minimum, so that, when the vehicle is restarted after each parking, the initial state can be always kept to be the state that the big wheel is provided with the small wheel, so that the starting is more labor-saving and power-saving.

Furthermore, two groups of storage batteries 14 are arranged, the two groups of storage batteries 14 can switch to supply power to the motor 4, the generator 20 is electrically connected with the two storage batteries 14 respectively, and when one storage battery 14 supplies power to the motor 4, the generator 20 is electrically connected with the other storage battery 14.

Through setting up two sets of batteries 14, can carry out the cross power supply to motor 4, can control its exchange through the controller, simultaneously at the generator 20 during operation, can charge to the battery 14 that does not supply power, can prevent like this that battery 14 from charging the limit power consumptive to can improve battery 14's life.

Further, the driving wheels 15 are installed at one end of the output shaft of the motor 4 and the outer wall of the first rotating shaft 3, and the two driving wheels 15 are in transmission connection through a belt.

The rotating speed of the output shaft of the motor 4 is controlled through the switch, and then the output shaft of the motor 4 rotates to drive the driving wheel 15 to rotate, so that the first rotating shaft 3 is driven to rotate under the driving action of the belt.

The working principle is as follows: when this new forms of energy electric bicycle's power device used, installed it on the electric motor car, when electric bicycle ridden, through rotating the electric door handle, then controller meeting starter motor 4, through the power supply of battery 14, motor 4 started, and the first pivot of output shaft drive 3 rotates, then through transmission of drive assembly, drives the rotation of second pivot 6, then drives sprocket 2 and rotates to drive electric bicycle traveles.

The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may be obtained by processing without any doubt according to the common general knowledge in the art, and the connection manner of the respective parts is by the conventional means developed in the art, and the machines, parts and equipment are of the conventional type in the art, so that the detailed description thereof is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. New forms of energy electric bicycle's power device, including headstock (1), its characterized in that: a first rotating shaft (3) and a second rotating shaft (6) are rotatably mounted on the inner wall of the power box (1), the first rotating shaft (3) and the second rotating shaft (6) are in transmission connection through a transmission assembly, and a chain wheel (2) in transmission connection with wheels of an electric bicycle is fixed at one end, penetrating out of the power box (1), of the second rotating shaft (6);

the power box comprises a power box (1), wherein a motor (4) used for driving a first rotating shaft (3) to rotate is installed at the inner top of the power box (1), a storage battery (14) used for supplying power to the motor (4) is installed on the inner wall of the power box (1), a generator (20) is installed on the inner wall of the power box (1), a rotating speed detector (5) is installed on the inner wall, close to a second rotating shaft (6), of the power box (1), and when the rotating speed detector (5) detects that the rotating speed of the second rotating shaft (6) exceeds a preset value, the rotating speed detector (5) can enable the first rotating shaft (3) to drive a rotating shaft (25) on the generator (20) to rotate through a linkage assembly to generate power and charge the storage battery (14);

linkage subassembly is including fixing mounting panel (23) at headstock (1) inner wall, spout (28) have been seted up at the top of mounting panel (23), and install slidable slider (24) in spout (28), the bearing frame is installed at the top of slider (24), and the axle center of bearing frame installs second gear (17) through the installation axle rotation, the one end of axis of rotation (25) is fixed with third gear (19), through drive gear (18) meshing transmission between second gear (17) and third gear (19), outer wall that first pivot (3) are close to second gear (17) is fixed with first gear (16), works as rotational speed detector (5) detect the rotational speed of second pivot (6) and can be close to first gear (16) through signal of telecommunication control slider (24) and remove when the default.

2. The power device of the new energy electric bicycle according to claim 1, characterized in that: second motor (27) are installed to the inner wall of spout (28), screw rod (26) are installed to the one end of second motor (27) output shaft, just slider (24) and the rotation are run through to the one end of screw rod (26) and are installed in the inner wall of spout (28), the department threaded connection that runs through of screw rod (26) and slider (24), rotational speed detector (5) and second motor (27) electric connection.

3. The power device of the new energy electric bicycle according to claim 1, characterized in that: the linkage assembly further comprises a fifth gear (32) fixed at the end of the rotating shaft (25), a fourth gear (31) is fixed on the outer wall of the first rotating shaft (3), a swing rod (29) is rotatably arranged on the outer wall of the rotating shaft (25), a sixth gear (30) is rotatably arranged on the outer wall of the swing rod (29) far away from the fifth gear (32), the sixth gear (30) and the fifth gear (32) are synchronously driven by a transmission mechanism, an electric telescopic rod (33) is rotatably arranged on the inner side wall of the power box (1) close to the swing rod (29), one end of an output shaft of the electric telescopic rod (33) is rotatably arranged on the outer wall of the swing rod (29), when the rotating speed detector (5) detects that the rotating speed of the second rotating shaft (6) exceeds a preset value, the output end of the electric telescopic rod (33) is controlled to extend out through an electric signal, the swing rod (29) is driven to rotate, and the sixth gear (30) is in contact engagement with the fourth gear (31).

4. The power unit of the new energy electric bicycle according to any one of claims 1 to 3, characterized in that: the transmission assembly comprises two second conical disks (10), the two second conical disks (10) are arranged on the outer wall of the first rotating shaft (3) through a flat key in a sliding mode, the conical surfaces of the two second conical disks (10) are opposite, the outer wall of the second rotating shaft (6) is provided with two first conical disks (9) through a flat key in a sliding mode, the conical surfaces of the first conical disks (9) are opposite, the conical surfaces of the two second conical disks (10) and the conical surfaces of the two first conical disks (9) are connected through transmission belt transmission, the outer wall of the first rotating shaft (3) positioned on the back surfaces of the two first conical disks (9) is fixedly provided with fixing pieces (7), the two fixing pieces (7) are respectively arranged between the two first conical disks (9) and sleeved with springs (8) arranged on the outer surface of the first rotating shaft (3), and the outer wall of the first rotating shaft (3) is provided with an adjusting mechanism, when the rotating speed of the first rotating shaft (3) is faster, the adjusting mechanism can enable the two second conical disks (10) to move back to back, and when the rotating speed of the first rotating shaft (3) is slower, the adjusting mechanism can enable the two second conical disks (10) to move relatively.

5. The power device of the new energy electric bicycle according to claim 4, characterized in that: adjustment mechanism includes two sets of adjusting parts, and two sets of adjusting parts set up the outer wall in first pivot (3), and two second cones dish (10) are located between two sets of adjusting parts, adjusting part is including fixing fixed block (21) at first pivot (3) outer wall, the outer wall of fixed block (21) is fixed with a plurality of fixed frames (11) that are the annular and distribute, every the equal slidable mounting of inner wall of fixed frame (11) has burden weight (12), be connected with extension spring (22) between the inner wall that burden weight (12) and fixed frame (11) are close to fixed block (21), it has connecting rod (13) to articulate between the outer wall of burden weight (12) and the outer wall of second cones dish (10).

6. The power device of the new energy electric bicycle according to claim 1, characterized in that: the storage batteries (14) are provided with two groups, the two groups of storage batteries (14) can switch to supply power to the motor (4), the generator (20) is electrically connected with the two storage batteries (14) respectively, and when one storage battery (14) supplies power to the motor (4), the generator (20) is electrically connected with the other storage battery (14).

7. The power device of the new energy electric bicycle according to claim 1, characterized in that: and driving wheels (15) are arranged at one end of an output shaft of the motor (4) and the outer wall of the first rotating shaft (3), and the two driving wheels (15) are in transmission connection through a belt.