CN112590989A

CN112590989A - Electric motorcycle

Info

Publication number: CN112590989A
Application number: CN202011425357.6A
Authority: CN
Inventors: 林鸿贵
Original assignee: Individual
Current assignee: Dongguan Begode Intelligent Technology Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-04-02

Abstract

The invention provides an electric motorcycle, which comprises a frame with a seat surface, a front wheel and a rear wheel, wherein the frame is also provided with a backrest part; pedal parts are arranged in the front area of the front wheels on the two sides of the front end of the frame; and the pedal part, the front wheel, the seat surface and the rear wheel are sequentially arranged on the frame from front to back, so that the electric motorcycle is used for a rider to straddle the frame and lean against the backrest part under the load using state of the electric motorcycle. The pedal part is arranged at the front end of the frame, particularly at the front end of the front wheel axle, so that the legs of a rider can be well kept in a relatively unfolded state, and the danger that the whole rider leans forward and falls over due to the fact that the pedal part is arranged on the front wheel when the electric motorcycle is braked, particularly when the electric motorcycle is braked suddenly, can be avoided. The electric motorcycle provided by the invention is suitable for miniaturization and light weight, has a compact whole structure and small volume, and is very convenient for a single person to go out.

Description

Electric motorcycle

Technical Field

The invention relates to the technical field of electric vehicles, in particular to an electric motorcycle.

Background

With the increasing density of the population, the urban traffic jam is also increased day by day. In order to alleviate the situation of difficult traveling, the electric motorcycle with the advantages of high bearing capacity, high driving speed, energy consumption saving and the like is more and more popular.

The existing electric motorcycle generally comprises a frame, a front wheel, a rear wheel, a battery pack, a driving mechanism, a cushion and a footrest, wherein the front wheel, the rear wheel, a battery, the driving mechanism, the cushion and the footrest are arranged on the frame, wherein the cushion and the footrest are arranged in front and between the rear wheels, the position of the frame close to the front wheel is bent downwards to form a low plane supporting surface, the footrest is arranged on the plane supporting surface, the cushion is arranged at the position of the frame close to the rear wheel, the vertical height of the cushion is higher than that of the footrest, and the whole motorcycle is large in size and high in gravity center. Generally, most riders ride in an end-sitting posture, the legs are bent at an angle of approximately 90 °, the controllability and the stability are difficult to control, and particularly, when the riders need to stop, especially when the riders need to stop, the riders with small statures can have difficulty in keeping balance of the vehicle body by touching the ground with both feet. Moreover, when the vehicle is driven for a long distance, fatigue of the waist or soreness and distension of the legs of the rider are easily caused, and the driving comfort is affected.

In the prior art, some electric motorcycles are designed to be similar to Harley motorcycles, the vertical height of a cushion is low, a footrest is positioned between a front wheel and a rear wheel, but the wheelbases of the front wheel and the rear wheel are large, the whole motorcycle type is long and high in weight, the motorcycle type is not convenient for turning at a large angle and is not convenient for carrying outdoors.

Disclosure of Invention

In order to solve the problems, the invention provides an electric motorcycle, which has a light vehicle body and a compact integral structure, reduces the gravity center of the whole vehicle by reducing the gravity center of a seat surface, has better driving stability, and simultaneously increases leg extension space by arranging a pedal plate at the front end of a vehicle frame without increasing the wheelbase of front and rear wheels, so that legs of a rider are in a natural and comfortable extension state in the driving process, and the waist keeps a natural leaning state, so that the human body feels more comfortable in the driving process, and the long-time driving fatigue is not easy to generate.

Specifically, the electric motorcycle provided by the invention comprises a frame with a seat surface, a front wheel and a rear wheel, and is characterized in that the frame is also provided with a backrest part; pedal parts are arranged in the front area of the front wheels on the two sides of the front end of the frame;

and the pedal part, the front wheel, the seat surface and the rear wheel are sequentially arranged on the frame from front to back, so that the electric motorcycle is used for a rider to straddle the frame and lean against the backrest part under the load using state of the electric motorcycle.

According to the electric motorcycle provided by the invention, the pedal part is arranged at the front end of the frame, particularly at the front end of the front wheel axle, so that legs of a rider can be well kept to pedal on the pedal part in a relatively comfortable manner, and the rider can be kept in a natural leaning state to drive, and a relatively comfortable driving state is kept.

After the gravity center of the whole electric motorcycle is reduced, the driving stability and safety of the whole motorcycle are better, the whole motorcycle can be miniaturized and lightened, and the electric motorcycle can be conveniently parked indoors or placed in a trunk of the motorcycle for going out.

Further, the vertical height H1 of the seat surface is less than or equal to 60 cm, so that the overall gravity center of the electric motorcycle is reduced, the sitting posture of a rider is more comfortable, and the driving safety and stability are improved.

The whole gravity center of the electric motorcycle is positioned near the center of the two-wheel wheelbase in the horizontal direction, and meanwhile, when the front wheel is suddenly and horizontally relatively static with the ground, a rider cannot mount the head forwards under the action of inertia, so that sudden stop collision is avoided.

As optimization, the vertical height of the seat surface is 40-50 cm, so that when a rider rides on the seat surface and the two feet are supported on the ground, the knees are slightly higher than the thighs, and smooth blood circulation of the legs is guaranteed.

In particular, the vertical height of the seat surface is 40 cm.

Furthermore, the gravity center of a triangle formed between the force bearing point of the seat surface, the force bearing point of the pedal part and the center of the axle of the rear wheel is positioned at the front side of the force bearing point of the seat surface.

Furthermore, the ratio of the distance L1 between the outermost sides of the two pedal parts to the vertical height H2 of the bottommost end of the pedal parts is less than or equal to 2.5: 1. The units of L1 and H2 are both cm.

The H2 value of the electric motorcycle provided by the invention is generally controlled to be 20-30 cm. For example, when the vertical height H2 of the foot rest portion is 20 cm, L1 is less than or equal to 50 cm, H2 is 30 cm, and L1 is less than or equal to 75 cm, the foot rest portion is guaranteed not to touch the ground when the vehicle body is tilted about 40 degrees.

Furthermore, the pedal face of the pedal part is obliquely arranged from front to back towards the rear upper part of the frame, so that the legs of a rider can be kept in a natural extending state when the rider rides the motorcycle, the riding comfort is improved, and reverse support is provided when the rider brakes.

Furthermore, the pedal surface of the pedal part is obliquely arranged from outside to inside towards the front wheel, so that the feet of a rider can be prevented from sliding out of the pedal area when the rider is on a bumpy road.

Furthermore, the pedal part is also provided with a stop part for preventing downward movement. The anti-downward movement stopping part keeps the feet of the rider stably treading on the pedal surface and is not easy to slide down, and the driving fatigue is reduced.

Furthermore, the pedal part of the electric motorcycle provided by the invention is arranged at the front end of the frame through the folding mechanism, so that the pedal part can be conveniently accommodated, and the structure is more compact.

Furthermore, the folding mechanism comprises a limit connecting piece arranged at the front end of the frame and a rotating shaft arranged on the limit connecting piece and used for being rotationally connected with the pedal part.

Further, spacing connecting piece is equipped with spacing face, pedal portion is equipped with and supports the spacing face of leaning on that leans on with this spacing face. When the pedal part rotates around the rotating shaft to the limit abutting surface of the pedal part and abuts against the limit surface, the pedal part is further limited in rotation, and therefore the stable unfolding state is maintained.

Furthermore, the seat surface is provided with a connecting wing, and the backrest frame of the backrest part is movably connected with the connecting wing and can turn over relative to the connecting wing.

Specifically, in order to keep the waist of the rider in a natural and comfortable leaning state in the driving process, the included angle between the backrest part and the seat surface of the electric motorcycle provided by the invention is 100-.

Preferably, the backrest frame and the connecting wings are kept in a relatively fixed state or released from the relatively fixed state through the action of the locking assembly, so that the turnover angle of the backrest frame can be conveniently adjusted, and the stable structure of the backrest frame can be kept.

Specifically, the locking assembly comprises a locking pin and a rebound assembly, and the rebound assembly comprises an elastic part and a limiting part;

the locking pin can be movably arranged on the backrest frame and the connecting wing in a pluggable mode, the limiting part is arranged on the locking pin, the elastic part is sleeved on the locking pin, the end part of the elastic part is fixed on the connecting wing, the elastic part is compressed when the locking pin is pulled out by external force, and the limiting part is pushed and the locking pin is reset to lock the backrest frame and the connecting wing when the external force is removed.

On the basis of the structure, the axle distance L2 between the front wheel and the rear wheel can be shortened to 70 cm to reduce the whole volume of the electric motorcycle and improve the operation flexibility, and the load ratio of the front wheel to the rear wheel is close to 1: 1.

Further, the vertical height H3 of the handle arranged at the front end of the frame of the electric motorcycle is 70-90 cm, and the specific suitable height is determined according to the height of a rider.

For improving the driving pleasure, the front end of the frame is provided with a Bluetooth sound box.

Further, the front wheel and/or the rear wheel are driven by the hub motor.

Preferably, the front wheel and the rear wheel are both driven by hub motors, namely the electric motorcycle is driven by two wheels.

Compared with the prior art, the electric motorcycle provided by the invention has the following advantages:

the gravity center of the seat surface is reduced, the riding stability of the whole vehicle is better guaranteed, and the driving wind resistance is reduced;

the pedal part is arranged at the front end of the frame, particularly at the front side of a front wheel axle, so that legs of a rider can be kept in a natural extension state, the riding comfort level is improved, the sour and swollen feeling of the legs is reduced, and the vehicle can be controlled to turn and brake more conveniently;

the pedal part is arranged on the front side of the front wheel axle, the danger of forward leaning collision of a human body can not be generated when the low gravity center is driven, the riding safety is higher, and meanwhile, the leaning comfort in the driving process is improved by the backrest part with the adjustable inclination angle.

The electric motorcycle can realize miniaturization and light weight, is convenient to park indoors or be placed in a trunk of the motorcycle for outgoing, and has lower production cost of the whole motorcycle, better controllability, economy, applicability and higher cost performance.

Drawings

FIG. 1 is a schematic view of an electric motorcycle according to the present invention;

FIG. 2 is a schematic top view of the electric motorcycle provided by the present invention;

FIG. 3 is a second schematic view of the overall structure of the electric motorcycle of the present invention;

FIG. 4 is a third schematic view of the overall structure of the electric motorcycle of the present invention;

FIG. 5 is a fourth schematic view of the overall structure of the electric motorcycle of the present invention;

FIG. 6 is a schematic view of the pedal portion and the folding mechanism of the electric motorcycle shown in FIG. 1;

FIG. 7 is a schematic view of the backrest structure of the electric motorcycle shown in FIG. 1;

FIG. 8 is an enlarged view of the structure at A in FIG. 7;

fig. 9 is a schematic view of center of gravity simulation of the electric motorcycle in a riding state provided by the invention.

The reference numerals have the following meanings:

11. a handlebar; 12. a frame; 121. a front end of the frame; 13. a front wheel; 14. a rear wheel; 15. a pedal portion; 151. a pedal surface; 16. a seat surface; 17. a backrest part; 18. bluetooth sound equipment; 19. mounting a connecting plate; 10. a battery inlet; r1, front wheel radius; h1, vertical height of seat surface; l2, front and rear wheel axle spacing; h2, the vertical height of the bottommost end of the pedal part in the unfolding state; h3, handle vertical height; 152. a limiting abutting surface; 22. a rotating shaft; 21. a limiting connecting piece; 211. a limiting surface; 171. a backrest surface; 172. a backrest frame; 30. a connecting wing; 301. a side end plate; 31. a movable shaft; 32. a locking pin; 321. a limiting member; 322. an elastic member; a1, a first stress point of the seat surface; a2, a second force bearing point of the seat surface; a3, a third stress point of the seat surface; b1, a first stress point of the pedal face; b2, a second stress point of the pedal face; b3, a third stress point of the pedal face; C. the axle center of the rear wheel.

Detailed Description

For better understanding and implementation, 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.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. appear, the terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The electric motorcycle provided by the invention, as shown in fig. 1-3, comprises a frame 12, a foot pedal part 15 which can be folded through a folding mechanism is arranged on the front end 121 of the frame, and a front wheel 13 and a rear wheel 14 which are arranged on the frame 12, wherein the foot pedal part 15 is positioned on the front side of a wheel axle of the front wheel 13. The frame 12 of the electric motorcycle is provided with a seat surface 16 and a backrest part 17 with adjustable inclination angle, and the vertical height H1 of the seat surface 16 is not more than 60 cm. According to the electric motorcycle provided by the invention, the pedal part is arranged at the front side of the axle of the front wheel, and the vertical height of the seat surface is controlled to be not more than 60 cm, so that the integral gravity center after loading can be ensured to meet the requirements that the height in the vertical direction is not fallen forward under the inertia effect after the stress analysis of the integral gravity center of the motorcycle when the front wheel is suddenly and horizontally relatively static with the ground.

The vehicle frame 12 is provided with the mounting connecting plate 19 which is obliquely arranged towards the seat surface 16, the height-adjustable handle 11 is arranged at the high end of the mounting connecting plate 19, the distance between the handle 11 and the backrest part 17 can be adjusted within the range of 50-80 cm, and compared with the prior electric motorcycle in which the handle is directly arranged on a front fork, the handle arrangement mode of the invention not only has more flexible wheel steering, but also is not limited by the wheel axle distance of the front and rear wheels when the height of the handle is adjusted, particularly when the height of the handle is increased.

In order to ensure sufficient power, the front wheel and the rear wheel of the electric motorcycle are driven by the hub motor.

In addition, a power storage inlet 10 for an external power supply to charge the battery module is also provided on the mounting link plate 19.

Referring to fig. 1-5, the ratio of the distance L1 between two fully unfolded pedals to the vertical height H2 of the lowest unfolded pedals is less than or equal to 2.5: 1. In the invention, H2 is generally controlled to be 20-30 cm, so that when the pedal part is completely unfolded and the vehicle body inclines by about 40 degrees, the pedal part cannot touch the ground to influence the balance and the stability of the vehicle body, and meanwhile, the feet of a rider can quickly touch the ground to keep the balance and the stability of the vehicle body when the electric motorcycle needs to be stopped suddenly in the driving process.

In order to improve the interest of driving, the front end 121 of the frame is also provided with a Bluetooth sound box 18 which can be externally connected with a playing device.

With further reference to fig. 6, the pedal portion 15 can be folded and flipped with respect to the frame by the folding mechanism, so as to reduce the overall volume of the electric motorcycle in the non-use state. Specifically, the folding mechanism includes a limiting connection member 21 connected to the frame 12 and a rotation shaft 22 disposed on the limiting connection member 21, a pair of through holes for accommodating the rotation shaft 22 is disposed on the pedal portion 15, the pedal portion 15 is provided with a limiting abutting surface 152, and the limiting abutting surface 152 abuts against a limiting surface 211 of the limiting connection member 21 to prevent the pedal portion 15 from being turned excessively, so as to maintain pedal stability. Meanwhile, the tread surface 151 of the step portion 15 is an anti-slip tread surface.

In order to better keep the pedaling stable, the pedal surface 151 is arranged towards the front wheel and is inclined towards the rear wheel in the fully unfolded state of the pedal part 15, and as an optimization, the bottom of the pedal surface 151 can be further provided with a downward movement preventing stop part (not shown in the figure), the heel of the rider abuts against the downward movement preventing stop part, and the feet of the rider are not easy to slip off from the pedal surface even under the condition of bumpy road conditions.

As shown in fig. 7 to 8, the backrest portion 17 includes a backrest frame 172 and a backrest surface 171 provided on the backrest frame 172. Specifically, the backrest surface 171 may be a sponge cushion surface to improve the comfort of the lumbar support. The angle between the backrest portion 17 and the seat surface 16 is 100-120 deg..

The backrest frame 172 is movably connected to the connecting wings 30 provided on the frame 12 by a movable shaft 31 to adjust the inclination angle of the backrest portion, and the backrest frame 172 is maintained relatively fixed to or released from the connecting wings 30 by a locking assembly. Specifically, as shown in fig. 7-8, the locking assembly includes a locking pin 32 and a resilient assembly, the resilient assembly includes a limiting member 321 on the locking pin 32, and an elastic member 322 sleeved on the locking pin 32 and located between the limiting member 321 and the side end plate 301 of the connecting wing 30, and one end of the elastic member 322 is fixed to the connecting wing 30.

When the inclination angle of the backrest frame 172 needs to be adjusted, the locking pin 32 is pulled to separate from the backrest frame 172, at this time, the limiting member 321 compresses the elastic member 322 along with the movement of the locking pin 32, and after the backrest frame 172 is turned over to a proper angle, the locking pin 32 is reset under the resilience of the elastic member 322 when being withdrawn, thereby realizing the relative fixation between the backrest frame 172 and the connecting wing 30. The elastic member 322 may be a compression spring, as known to those skilled in the art.

The height of the handle 11 of the electric motorcycle provided by the invention can be flexibly adjusted according to the height of a rider, and the vertical height H3 of the handle ranges from 70 cm to 90 cm, as shown in figure 4. In practical application, the height of the seat surface or the height of the handle can be adjusted according to the height of a rider.

As the prior art, the battery assembly and the electric storage inlet structure of the electric motorcycle, the brake mechanism and the buffering and damping mechanism, etc. are not described herein again.

Referring to fig. 9, when a rider straddles the electric motorcycle provided by the present invention, a line connecting a first force-bearing point a1 of the seat surface closest to the backrest portion, a first force-bearing point B1 of the foot tread surface at the topmost end, and a center C of a wheel axle of the rear wheel forms a triangle having a center of gravity G1 located in front of the center of gravity of the rider; a triangle formed by a connecting line between a second force bearing point A2 of the seat surface close to the center of the force bearing surface of the seat, a second force bearing point B2 of the foot tread surface close to the center point of the foot tread surface and a center C of a wheel axle of the rear wheel, wherein the gravity center G2 of the triangle is positioned in front of the gravity center of the rider; and the gravity center G3 of a triangle formed by connecting three points among a third force bearing point A3 of the seat surface close to the foremost end of the seat force bearing surface, a third force bearing point B3 of the foot tread surface at the bottommost end of the foot tread surface and the center C of the rear wheel axle is positioned in front of the gravity center of a rider. It can be seen that the center of gravity of the triangle formed by the connecting line between the seat surface stress point, the pedal surface stress point and the center of the rear wheel axle is always positioned at the most front stress point of the seat surface, i.e. always positioned in front of the third stress point A3 of the seat surface, i.e. the center of gravity of the triangle is closer to the direction of the front wheel, so that the center of gravity of the rider after straddling is pressed downwards and can be lowered towards the direction close to the rear wheel, thereby the load of the front wheel and the rear wheel is closer to each other, meanwhile, the distance between the seat surface stress point and the center of the rear wheel axle is smaller than the distance between the pedal surface stress point and the seat surface stress point, and the legs of the rider are always in a comfortable riding state with the unfolded and the back naturally leaning.

Compared with the existing electric motorcycle, the gravity center of the seat surface of the electric motorcycle with the structure is reduced to the range of 40-60 cm away from the ground, so that the gravity center of the electric motorcycle is lower, the driving stability in the driving process is improved, the electric motorcycle is more beneficial to the ground grabbing of the front wheel, and the driving wind resistance is lower; simultaneously, set up pedal portion in frame front end promptly front wheel shaft front side, ride passerby's both feet and arrange pedal portion in after, the shank can keep more comfortable extension state, guarantees the driving comfort after the focus reduces, has also avoided the risk that the human body leans forward when stopping that present high focus drive leads to simultaneously, has improved driving safety and stability, more helps controlling turn and steady braking.

In addition, the radius R1 of the front wheel is controlled to be 15-20 cm, the axle distance L2 between the front wheel and the rear wheel is controlled to be 70-90 cm, the preferable range is 70 cm, and the two-wheel load ratio is close to 1:1, so that the volume and the weight of the whole vehicle are reduced, the single-person traveling is facilitated, and the risk that the front wheel is easy to slip due to insufficient friction force with the ground when the front wheel drives due to over-light load of the front wheel can be avoided.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The electric motorcycle comprises a frame with a seat surface, a front wheel and a rear wheel, and is characterized in that the frame is also provided with a backrest part; pedal parts are arranged in the front area of the front wheels on the two sides of the front end of the frame;

2. The electric motorcycle of claim 1, wherein a vertical height H1 of the seat surface is less than or equal to 60 cm.

3. The electric motorcycle of claim 2, wherein the vertical height H1 of the seat surface is 40-50 cm.

4. The electric motorcycle of claim 1, wherein a center of gravity of a triangle formed between the seat surface force receiving point and the pedal portion force receiving point and a center of a rear wheel axle is located forward of the seat surface force receiving point.

5. The electric motorcycle of claim 4, wherein a ratio of a distance L1 between outermost sides of the step parts to a vertical height H2 of a bottommost side of the step parts is 2.5:1 or less.

6. An electric motorcycle according to any one of claims 1-5, wherein a tread surface of the step portion is disposed obliquely from front to rear and toward a rear upper side of the frame.

7. An electric motorcycle according to any one of claims 1-5, wherein a tread surface of the step portion is disposed obliquely from outside to inside toward the front wheel.

8. An electric motorcycle according to any one of claims 1-5, wherein the footrest section is provided at a front end of the frame via a folding mechanism.

9. The electric motorcycle of claim 8, wherein the folding mechanism includes a limit connector disposed at a front end of the frame, and a shaft disposed on the limit connector for rotational connection with the pedal portion.

10. The electric motorcycle of claim 9, wherein the limit connector is provided with a limit surface, and the step portion is provided with a limit abutting surface abutting against the limit surface.

11. An electric motorcycle according to claim 8, wherein the step portion is further provided with a downward movement prevention stopper portion.

12. The electric motorcycle of claim 1, wherein the seat surface is provided with a connection wing, and the backrest frame of the backrest portion is movably connected with the connection wing and can be turned relative to the connection wing.

13. The electric motorcycle of claim 12, wherein an angle between the backrest portion and the seat surface is 100 ° and 120 °.

14. An electric motorcycle according to claim 12, wherein the backrest frame and the connection wing are held in a relatively fixed state or released from the relatively fixed state by a lock assembly.

15. An electric motorcycle according to claim 14, wherein the locking assembly comprises a locking pin and a resilient assembly;

the rebound assembly comprises an elastic piece and a limiting piece;

the locking pin is movably arranged on the backrest frame and the connecting wing, the elastic piece is sleeved on the locking pin, the end part of the elastic piece is fixed on the connecting wing, the limiting piece is arranged on the locking pin, and the elastic piece is compressed when the locking pin is pulled out by external force.

16. The electric motorcycle of any one of claims 1 to 5, wherein a vertical height H3 of the handle provided at the front end of the frame is 70 to 90 cm.

17. The electric motorcycle of claim 1, wherein the front end of the frame is provided with a bluetooth sound.

18. An electric motorcycle according to claim 1, characterised in that the front and/or rear wheels are driven by a hub motor.