Electric motorcycle with long endurance

By designing a kinetic energy recovery device on an electric off-road motorcycle, the power potential energy during downhill is converted into electrical energy and stored, the problem of insufficient endurance of existing electric motorcycles is solved and the endurance of the motorcycle is significantly improved.

CN222973559UActive Publication Date: 2025-06-13浙江米航科技有限公司
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Patent Information

Application Number
CN202421743260.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-06-13
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

Existing electric off-road motorcycles lack kinetic energy recovery devices when going downhill, resulting in insufficient endurance and affecting off-road performance.

Method used

An electric motorcycle with a long range is designed. By setting a rotor and excitation winding at the front end of the skeleton, the kinetic energy recovery device is used to convert the potential energy of the rear wheel into electrical energy and stored in the battery through an inverter.

Benefits of technology

It effectively improves the endurance of electric motorcycles, especially when going downhill, the range of motorcycles is extended through the use of kinetic energy recovery devices.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222973559U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of electric motorcycles, and discloses a long-endurance electric motorcycle which comprises a framework, a front fork arm is arranged at the front end of the framework, a front wheel is rotatably connected to the lower end of the inner wall of the front fork arm, a storage battery is arranged at the upper end of the front end in the framework, and a motor is arranged in the middle of the interior of the framework. The output end of the motor is fixedly connected with a first power disc. According to the utility model, the rotor is driven by the rotating shaft to rotate, so that the rotor drives the excitation winding to rotate, the coil stator N pole and the coil stator S pole generate magnetic fields in the power generation box, magnetic induction lines exist between the magnetic fields, and when magnetic lines of the rotor cut the stator winding, the stator winding generates induced electromotive force; along with the rotation of the rotor, more and more magnetic field lines cutting the stator winding are generated, so that alternating current is generated, then the alternating current is converted into direct current through the inverter and is transmitted into the storage battery to be stored, and the endurance of the electric motorcycle is improved.
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Description

Technical Field

[0001] The utility model relates to the field of electric motorcycles, in particular to an electric motorcycle with a long endurance. Background Art

[0002] An electric off-road motorcycle is a motorcycle that uses a battery to drive an electric motor, and is specially designed to travel on rough or undulating terrains. Since an electric motor usually has high torque and smooth power output, providing superior acceleration and power performance, the electric off-road motorcycle performs excellently on undulating terrains, thus an electric motorcycle appears. However, since the electric motorcycle is powered by a battery, its endurance is reduced to a certain extent compared with that of a fuel motorcycle. Therefore, for some off-road enthusiasts, the practicality of the electric motorcycle is relatively reduced a lot. For this reason, an electric motorcycle with a long endurance is proposed.

[0003] When the existing electric off-road motorcycles are off-roading, there may be a downhill road with a long distance. Most of the existing electric motorcycles do not have a kinetic energy recovery device. Therefore, when going downhill, the rider usually releases the throttle and then controls the motorcycle to fall freely, which may cause some potential energy loss during the fall. Therefore, there is an urgent need for technical improvement. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an electric motorcycle with a long endurance. Through the design of components such as a frame, a suspension, and a front fork arm, the electric motorcycle has good stability and balance, can adapt to various road conditions and driving environments, and provides users with a more comfortable and safe riding experience.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electric motorcycle with a long endurance, including a frame. The front end of the frame is provided with a front fork arm. The lower end of the inner wall of the front fork arm is rotatably connected to a front wheel. The upper end of the front part inside the frame is provided with a storage battery. The middle part inside the frame is provided with an electric motor. The output end of the electric motor is fixedly connected to a first power disk. The rear end of the first power disk is provided with a first transmission disk. One side outer wall of the first transmission disk is fixedly connected to a second transmission disk. The rear end of the frame is provided with a rear suspension. The rear end of the rear suspension is provided with a rotating shaft. The middle part of the rotating shaft body is fixedly connected to a rear wheel. One side of the rotating shaft body is provided with a second power disk;

[0007] A power generation box is fixedly connected to the rear end of the outer wall of one side of the framework. Inside the power generation box, a coil stator N pole and a coil stator S pole are respectively fixedly connected. A rotor is arranged inside the power generation box. A plurality of connection blocks are fixedly connected to the outer wall of the rotor. An exciting winding is wound around the outer wall of the connection block. A connecting shaft is fixedly connected to the outer wall of the side of the rotor close to the framework. A protective cover is arranged at the front end of the upper surface of the framework. A seat cushion is arranged in the middle of the upper surface of the framework.

[0008] Through the above technical solutions, this design focuses on the optimization of aspects such as battery life performance, energy conversion efficiency, power transmission system, and riding stability, making this electric motorcycle with long battery life have better overall performance and user experience.

[0009] Furthermore, a handle is fixedly connected to the upper surface of the front end of the framework.

[0010] Through the above technical solutions, by fixedly connecting a handle to the upper surface of the front end of the framework, the electric motorcycle can be better controlled.

[0011] Furthermore, an inverter is arranged at the front end of the storage battery. The power generation box, inverter, storage battery, and motor are all electrically connected to each other.

[0012] Through the above technical solutions, by arranging an inverter at the front end of the storage battery and electrically connecting the power generation box, inverter, storage battery, and motor to each other, power can be better provided for the motor, and the power can be better stored inside the storage battery.

[0013] Furthermore, a support frame is arranged on one side of the middle of the lower surface of the framework.

[0014] Through the above technical solutions, by arranging a support frame on one side of the middle of the lower surface of the framework, the electric motorcycle can be better supported.

[0015] Furthermore, both ends of the shaft body of the rotating shaft are rotatably connected to the rear suspension. The end of the connecting shaft far from the rotor is fixedly connected to the rotating shaft.

[0016] Through the above technical solutions, by rotatably connecting both ends of the shaft body of the rotating shaft to the rear suspension and fixedly connecting the end of the connecting shaft far from the rotor to the rotating shaft, the rear wheel can better drive the rotor to rotate.

[0017] Furthermore, the outer walls of the first power disk and the first transmission disk, and the second power disk and the second transmission disk are all fixedly connected by chains.

[0018] Through the above technical solutions, by fixedly connecting the outer walls of the first power disk and the first transmission disk, and the second power disk and the second transmission disk by chains, the rear wheel can be better rotated.

[0019] Furthermore, the outer walls of the first drive disk and the second drive disk on the sides away from each other are both rotatably connected to the inner wall of the framework;

[0020] Through the above technical solution, since the outer walls of the first drive disk and the second drive disk on the sides away from each other are both rotatably connected to the inner wall of the framework, the positions of the first drive disk and the second drive disk can be better fixed.

[0021] Furthermore, one end of the rotor away from the connecting shaft is rotatably connected to the inner wall of one side of the power generation box;

[0022] Through the above technical solution, since one end of the rotor away from the connecting shaft is rotatably connected to the inner wall of one side of the power generation box, the rotational stability can be effectively improved while the rotor is rotating.

[0023] The utility model has the following beneficial effects:

[0024] 1. An electric motorcycle with long endurance proposed by the utility model, compared with the existing electric motorcycles, this electric motorcycle drives the rotor to rotate through the provided rotating shaft, so that the rotor drives the exciting winding to rotate, and the magnetic field is generated inside the power generation box between the N pole and the S pole of the coil stator. There are magnetic induction lines between the magnetic fields. When the magnetic lines of force of the rotor cut the stator winding, according to the electromagnetic induction law, the stator winding will generate an induced electromotive force. As the rotor rotates, more and more magnetic field lines cutting the stator winding are generated, thus generating alternating current, and then the alternating current is converted into direct current through an inverter and transmitted to the inside of the storage battery for storage, thereby improving the endurance of the electric motorcycle. Therefore, when going downhill, by converting the electric potential energy of the rear wheel, the overall endurance of the motorcycle can be effectively improved. Description of the Drawings

[0025] Figure 1 Isometric view of an electric motorcycle with long endurance proposed by the utility model;

[0026] Figure 2 Structural schematic diagram of an electric motorcycle with long endurance proposed by the utility model;

[0027] Figure 3 Axial sectional view of an electric motorcycle with long endurance proposed by the utility model;

[0028] Figure 4 Cross-sectional view of the power generation box in an electric motorcycle with long endurance proposed by the utility model;

[0029] Figure 5 Structural schematic diagram of the rotor in an electric motorcycle with long endurance proposed by the utility model.

[0030] Legend Explanation:

[0031] 1. Skeleton; 2. Rotating shaft; 3. Rear wheel; 4. Rear suspension; 5. Seat cushion; 6. Protective cover; 7. Front fork arm; 8. Handlebar; 9. Front wheel; 10. Power generation box; 11. Second power disk; 12. Second transmission disk; 13. Battery; 14. Motor; 15. Support frame; 16. First transmission disk; 17. First power disk; 18. Coil stator N pole; 19. Excitation winding; 20. Rotor; 21. Wiring block; 22. Coil stator S pole; 23. Connecting shaft; 24. Inverter. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figures 1-5 , an embodiment provided by the present invention:

[0034] An electric motorcycle with long endurance includes a skeleton 1. A front fork arm 7 is provided at the front end of the skeleton 1. The lower end of the inner wall of the front fork arm 7 is rotatably connected to a front wheel 9. A battery 13 is provided at the upper end of the front part inside the skeleton 1. A motor 14 is provided in the middle of the inside of the skeleton 1. The output end of the motor 14 is fixedly connected to a first power disk 17. A first transmission disk 16 is provided at the rear end of the first power disk 17. A second transmission disk 12 is fixedly connected to the outer wall of one side of the first transmission disk 16. A rear suspension 4 is provided at the rear end of the skeleton 1. A rotating shaft 2 is provided at the rear end of the rear suspension 4. The middle of the shaft body of the rotating shaft 2 is fixedly connected to a rear wheel 3. A second power disk 11 is provided on one side of the shaft body of the rotating shaft 2;

[0035] The rear end of the outer wall of one side of the skeleton 1 is fixedly connected to a power generation box 10. The inner walls of the power generation box 10 are respectively fixedly connected to a coil stator N pole 18 and a coil stator S pole 22. A rotor 20 is provided inside the power generation box 10. A plurality of wiring blocks 21 are fixedly connected to the outer wall of the rotor 20. An excitation winding 19 is wound around the outer wall of the wiring block 21. A connecting shaft 23 is fixedly connected to the outer wall of the side of the rotor 20 close to the skeleton 1. A protective cover 6 is provided at the front end of the upper surface of the skeleton 1. A seat cushion 5 is provided in the middle of the upper surface of the skeleton 1;

[0036] This design focuses on the optimization of aspects such as endurance performance, energy conversion efficiency, power transmission system, and riding stability, making this electric motorcycle with long endurance have better overall performance and user experience.

[0037] A handle 8 is fixedly connected to the upper surface of the front end of the frame 1. By fixedly connecting the handle 8 to the upper surface of the front end of the frame 1, the electric motorcycle can be better controlled. An inverter 24 is provided at the front end of the storage battery 13. The power generation box 10, the inverter 24, the storage battery 13, and the motor 14 are all electrically connected to each other. By providing the inverter 24 at the front end of the storage battery 13 and electrically connecting the power generation box 10, the inverter 24, the storage battery 13, and the motor 14 to each other, power can be better provided for the motor 14, and the power can be better stored inside the storage battery 13. A support frame 15 is provided on one side of the middle of the lower surface of the frame 1. By providing the support frame 15 on one side of the middle of the lower surface of the frame 1, a better supporting effect can be provided for the electric motorcycle.

[0038] Both ends of the shaft body of the rotating shaft 2 are rotatably connected to the rear suspension 4. One end of the connecting shaft 23 far from the rotor 20 is fixedly connected to the rotating shaft 2. By rotatably connecting both ends of the shaft body of the rotating shaft 2 to the rear suspension 4 and fixedly connecting one end of the connecting shaft 23 far from the rotor 20 to the rotating shaft 2, the rear wheel 3 can better drive the rotor 20 to rotate. The outer walls of the first power disk 17 and the first transmission disk 16, and the second power disk 11 and the second transmission disk 12 are fixedly connected by chains. By fixedly connecting the outer walls of the first power disk 17 and the first transmission disk 16, and the second power disk 11 and the second transmission disk 12 by chains, the rear wheel 3 can rotate better.

[0039] The outer walls of the mutually remote sides of the first transmission disk 16 and the second transmission disk 12 are rotatably connected to the inner wall of the frame 1. By rotatably connecting the outer walls of the mutually remote sides of the first transmission disk 16 and the second transmission disk 12 to the inner wall of the frame 1, the positions of the first transmission disk 16 and the second transmission disk 12 can be better fixed. One end of the rotor 20 far from the connecting shaft 23 is rotatably connected to the inner wall of one side of the power generation box 10. By rotatably connecting one end of the rotor 20 far from the connecting shaft 23 to the inner wall of one side of the power generation box 10, the rotational stability can be effectively improved while the rotor 20 is rotating.

[0040] Working principle: When in use, connect the first power disk 17 and the first transmission disk 16 through a chain, and then connect the second transmission disk 12 and the second power disk 11 through a chain. When turning the ignition switch, electric power is transmitted from the storage battery 13 into the motor 14, causing the motor 14 to drive the first power disk 17 to rotate. Then, the first power disk 17 drives the first transmission disk 16 to rotate, which in turn drives the second transmission disk 12 to rotate. The second transmission disk 12 then drives the second power disk 11 to rotate, and the second power disk 11 drives the rear wheel 3 to rotate through the rotating shaft 2, providing power potential energy for the electric motorcycle. When going downhill or during a speed descent, by releasing the ignition switch, the rotating shaft 2 drives the connecting shaft 23 to rotate, causing the connecting shaft 23 to drive the rotor 20 to rotate. The rotor 20 then drives the excitation winding 19 to rotate. The coil stator N pole 18 and the coil stator S pole 22 generate a magnetic field inside the power generation box 10, and there are magnetic induction lines between the magnetic fields. When the magnetic lines of force of the rotor 20 cut the stator winding, according to the law of electromagnetic induction, an induced electromotive force is generated in the stator winding. As the rotor 20 rotates, more and more magnetic field lines of the stator winding are cut, generating alternating current. Then, the inverter 24 converts the alternating current into direct current and transmits it into the storage battery 13 for storage, improving the endurance of the electric motorcycle. Thus, when going downhill, the electric potential energy of the rear wheel 3 is converted, effectively enhancing the overall endurance of the motorcycle.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric motorcycle with a long driving range, comprising a frame (1), characterized in that: A front fork arm (7) is provided at the front end of the frame (1), the lower end of the inner wall of the front fork arm (7) is rotatably connected to a front wheel (9), a battery (13) is provided at the upper end of the front end of the frame (1), a motor (14) is provided in the middle of the frame (1), the output end of the motor (14) is fixedly connected to a first power disk (17), a first transmission disk (16) is provided at the rear end of the first power disk (17), a second transmission disk (12) is fixedly connected to an outer wall of one side of the first transmission disk (16), a rear suspension (4) is provided at the rear end of the frame (1), a rotating shaft (2) is provided at the rear end of the rear suspension (4), a rear wheel (3) is fixedly connected to the middle of the rotating shaft (2), and a second power disk (11) is provided on one side of the rotating shaft (2); A generator box (10) is fixedly connected to the rear end of the outer wall of one side of the frame (1), and the inner wall of the generator box (10) is respectively fixedly connected to the coil stator N pole (18) and the coil stator S pole (22). A rotor (20) is arranged inside the generator box (10), and a plurality of terminal blocks (21) are fixedly connected to the outer wall of the rotor (20), and an excitation winding (19) is wound around the outer wall of the terminal block (21). A connecting shaft (23) is fixedly connected to the outer wall of the rotor (20) on one side close to the frame (1), a protective cover (6) is arranged at the front end of the upper surface of the frame (1), and a cushion (5) is arranged in the middle of the upper surface of the frame (1).

2. The electric motorcycle with long driving range according to claim 1, characterized in that: A handle (8) is fixedly connected to the upper surface of the front end of the frame (1).

3. The electric motorcycle with long driving range according to claim 1, characterized in that: An inverter (24) is provided at the front end of the storage battery (13); the power generation box (10), the inverter (24), the storage battery (13), and the motor (14) are all electrically connected to each other.

4. The electric motorcycle with long driving range according to claim 1, characterized in that: A support frame (15) is provided on one side of the middle portion of the lower surface of the frame (1).

5. The electric motorcycle with long driving range according to claim 1, characterized in that: Both ends of the shaft body of the rotating shaft (2) are rotatably connected to the rear suspension (4), and one end of the connecting shaft (23) away from the rotor (20) is fixedly connected to the rotating shaft (2).

6. The electric motorcycle with long driving range according to claim 1, characterized in that: The outer walls of the first power disc (17) and the first transmission disc (16), the second power disc (11) and the second transmission disc (12) are all fixedly connected via chains.

7. The electric motorcycle with long driving range according to claim 1, characterized in that: The outer walls of the first transmission disc (16) and the second transmission disc (12) that are away from each other are both rotatably connected to the inner wall of the frame (1).

8. The electric motorcycle with long driving range according to claim 1, characterized in that: One end of the rotor (20) away from the connecting shaft (23) is rotatably connected to an inner wall of one side of the generator box (10).