A complete frame for an electric motorcycle

Abstract

This utility model provides a complete frame for an electric motorcycle, belonging to the field of electric motorcycle components. It solves the problems of existing frames being unable to balance lightweight design with structural strength and the need for partitioned installation of the motor and battery. It includes a riser mechanism, on which an upper frame mechanism and a lower frame mechanism are mounted. Reinforcing ribs are provided between the ends of the lower frame mechanism and the upper frame mechanism. A support mechanism is provided between the upper and lower frame mechanisms. A foot pedal mechanism is located at the end of the upper frame mechanism, and a seat frame mechanism is mounted on the upper frame mechanism. This utility model can limit the steering angle, prevent cable entanglement, and ensure safe use. It optimizes stress distribution through a multi-angle bending structure, avoiding stress concentration and enhancing structural strength. It can form a mounting cavity for easy battery and motor installation, provide support, disperse stress, achieve lightweight and high rigidity, partition the mounting cavity for easy center of gravity balance, prevent electromagnetic interference, and form a triangular support structure to improve the rigidity of the seat area.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric motorcycle components, and relates to a motorcycle frame, particularly a motorcycle frame for electric motorcycles. Background Technology

[0002] Electric motorcycles are not only used as a means of transportation but also provide people with the enjoyment of exercise. The frame, as a crucial component of an electric motorcycle, bears most of the vehicle's load and has a decisive influence on the overall structural strength and riding experience. The overall structural strength of the frame largely determines the safety performance of the electric motorcycle.

[0003] Existing electric motorcycles typically use compact frames, with the motor and battery usually installed close together to make full use of space. However, this approach can lead to electromagnetic interference and heat transfer, affecting safety. In addition, the use of steel is generally used to ensure structural strength, which cannot guarantee portability.

[0004] Therefore, we propose a complete frame for electric motorcycles that can limit steering angle, prevent cable entanglement, and ensure safety. It can optimize stress distribution through a multi-angle bending structure, avoid stress concentration, and enhance structural strength. It can form a mounting cavity to facilitate battery and motor installation, provide support, disperse stress, achieve lightweight and high rigidity, and can partition the mounting cavity to achieve functional zoning, facilitate center of gravity balance, isolate the battery and motor heat dissipation areas, reduce electromagnetic interference risks, and form a triangular support structure to improve the rigidity of the seat area and ensure that it can bear a certain load. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a complete frame for electric motorcycles. The technical problem to be solved by this utility model is: how to achieve a lightweight electric motorcycle frame while ensuring structural strength and stability, and how to install the battery and motor in separate sections.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An electric motorcycle frame includes a riser mechanism, on which an upper frame mechanism and a lower frame mechanism are provided. A reinforcing rib is provided between the end of the lower frame mechanism and the end of the upper frame mechanism, and the other end of the lower frame mechanism is connected to the curved part of the upper frame mechanism. A mounting cavity is formed between the lower frame mechanism and the upper frame mechanism. A support mechanism is provided between the upper frame mechanism and the lower frame mechanism. The support mechanism is located inside the mounting cavity and divides the mounting cavity into a battery mounting cavity and a motor mounting cavity. The battery mounting cavity is close to the riser mechanism. A foot pedal mechanism is provided at the end of the upper frame mechanism and is located below the lower frame mechanism. A seat frame mechanism is provided on the upper frame mechanism.

[0008] The working principle of this utility model is as follows: The front wheel steering column is fixed by the riser mechanism, and the maximum steering angle of the front wheel steering column is limited. The electric motor is protected by a reinforcing rib that connects the lower frame mechanism and the upper frame mechanism, filling the weak connection area, improving bending strength, and preventing deformation under bumpy conditions. The stress distribution is optimized by the multi-angle bending beams of the lower frame mechanism and the upper frame mechanism, avoiding stress concentration and enhancing structural strength. An installation cavity is formed between the riser mechanism, the lower frame mechanism, and the upper frame mechanism to facilitate the installation of the battery and motor. The lower frame mechanism and the upper frame mechanism are connected by a support mechanism to provide support, disperse stress, and form a spatial truss structure, achieving lightweight and high rigidity and enhancing structural strength. The installation cavity is divided into a battery installation cavity near the riser mechanism and a motor installation cavity away from the riser mechanism, realizing functional zoning, facilitating the balance of the center of gravity, suppressing cavity resonance, isolating the battery and motor heat dissipation areas, and reducing the risk of electromagnetic interference. The foot pedal mechanism is laterally connected to the upper frame mechanism to increase structural strength and provide foot pedal support. The seat frame mechanism cooperates with the upper frame mechanism to form a triangular support structure, improving the rigidity of the seat area.

[0009] The riser mechanism includes a front riser, and a limit block is fixed on the front side of the front riser.

[0010] With the above structure, the front wheel steering column is fixed by the front riser tube, and the maximum steering angle of the front wheel is controlled by the limit block to avoid cable entanglement.

[0011] The lower frame mechanism includes two symmetrically arranged lower beams, with a lower crossbeam between them. Each lower beam includes an integrally bent second beam, a connecting beam, and a first bent beam. The end of the second bent beam is fixed to the rear side of the front upright. The axial angle between the end of the first connecting beam and the end of the second bent beam is 145°, and the axial angle between the end of the first connecting beam and the end of the first bent beam is 155°. Each second bent beam is equipped with a second battery mounting seat, and each first connecting beam is equipped with a first battery mounting seat. The lower crossbeam is located at the connection between the first bent beam and the first connecting beam.

[0012] The above structure, through the three-section multi-angle bending beam design of the second bending beam, the connecting beam, and the first bending beam, optimizes stress distribution and avoids stress concentration. The second battery mounting base and the first battery mounting base work together to install the battery. The lower crossbeam is used to connect the lower beams on both sides laterally, which enhances the lateral rigidity of the frame and resists lateral bending.

[0013] The upper frame mechanism includes two symmetrically arranged upper beam assemblies, with an upper crossbeam between the two upper beam assemblies. A shock-absorbing suspension seat is provided on the upper crossbeam. The upper beam assembly includes an integrally bent upper beam one, a transition beam, and a curved beam three. The upper ends of the two upper beams one are provided with reinforcing ribs two. The axial angle at the connection between the end of upper beam one and the end of the transition beam is 165°, and the axial angle at the connection between the end of the transition beam and the end of curved beam three is 158°. Curved beam three has a J-shaped structure, and the curved part of curved beam three is provided with an arc-shaped fixing plate. A motorcycle bracket seat is provided on the outer side of the curved part of one of the curved beams three.

[0014] The above structure, consisting of a three-section multi-angle bending beam design (upper beam 1, transition beam, and bending beam 3) and two lower beam components, forms the main frame. This multi-angle bending design disperses overall stress, ensuring structural strength while maintaining lightweight design. It forms an installation cavity, and an arc-shaped fixing plate enhances the fatigue resistance of the bending parts and is also used for rear wheel mounting. The upper crossbeam strengthens lateral strength, the shock absorber suspension mount suspends the rear wheel shock absorber, improving the user experience, and the motorcycle bracket mount is used to install the parking bracket, ensuring parking stability.

[0015] The support mechanism includes two support tubes symmetrically arranged on the left and right. One end of each support tube is fixed to the curved beam of the lower beam on the same side, and the other end of each support tube is fixed to the transition beam of the upper beam assembly on the same side. Two fixing seats are provided on the rear side of each end of the support tube. Two support beams are provided between the two support tubes. One of the support tubes is provided with a fixing seat, and one of the support beams is provided with a fixing seat. The two fixing seats are symmetrically arranged.

[0016] With the above structure, two support tubes connect two upper beam components and two lower beam components to provide vertical support, and together with two support beams to provide lateral support, thereby enhancing the overall structural strength. Two mounting bases are used to install the motor. At the same time, the two support tubes and the two support beams divide the mounting cavity into two areas to facilitate horizontal center of gravity alignment. Mounting base 1 is used to fix other components.

[0017] The foot pedal mechanism includes a connecting rod, which is fixed to the end of the curved beam three of the two upper beam assemblies. The connecting rod is provided with two fixed seats three arranged symmetrically on the left and right sides. The positions of the two fixed seats three correspond to the two fixed seats two. Both ends of the connecting rod are provided with foot pedal seats.

[0018] With the above structure, the connecting rod is used to connect the two upper beam components, strengthen the lateral rigidity, and ensure the structural strength. The foot pedal is used to install the foot pedal, and the two symmetrically arranged fixed seats cooperate with the two fixed seats to install the motor.

[0019] The seat cushion frame mechanism includes a seat cushion frame, with two symmetrical and inclined support tubes at the lower end of the seat cushion frame. The ends of the seat cushion frame are fixed to the transition beams of the two upper beam assemblies, and the ends of the two support tubes are respectively fixed to the curved beams of the two upper beam assemblies. The upper end of the seat cushion frame is provided with a seat cushion mounting seat, and the seat cushion frame is provided with a fixing seat.

[0020] With the above structure, the seat frame and seat mounting base are used to install and fix the seat. The two support tubes, the seat frame and the two upper beam assemblies work together to form a support mechanism to ensure the stability of the seat frame and to ensure that it can bear a certain load. The mounting base is used to install the controller.

[0021] Compared with existing technologies, the complete frame of this electric motorcycle has the following advantages:

[0022] 1. The front wheel steering column is fixed by the riser mechanism, and the maximum steering angle of the front wheel steering column is limited to prevent cable entanglement and ensure the safety of electric motorcycle use.

[0023] 2. By optimizing the stress distribution through the multi-angle bending structure of the lower frame mechanism and the upper frame mechanism, stress concentration is avoided and structural strength is enhanced.

[0024] 3. An installation cavity is formed between the riser mechanism, the lower frame mechanism, and the upper frame mechanism to facilitate the installation of the battery and motor. It works in conjunction with the support mechanism to provide support, distribute stress, and form a spatial truss structure, achieving lightweight and high rigidity, enhancing structural strength. At the same time, the installation cavity is separated to achieve functional zoning, facilitate the balance of the center of gravity, suppress cavity resonance, isolate the battery and motor heat dissipation areas, and reduce the risk of electromagnetic interference.

[0025] 4. The seat cushion frame mechanism works in conjunction with the upper frame mechanism to form a triangular support structure, which improves the rigidity of the seat cushion area and ensures that it can bear a certain load. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a structural schematic diagram of the upright tube mechanism in this utility model.

[0028] Figure 3 This is a structural schematic diagram of the lower frame mechanism in this utility model.

[0029] Figure 4 This is a structural schematic diagram of the upper frame mechanism in this utility model.

[0030] Figure 5 This is a structural schematic diagram of the support mechanism in this utility model.

[0031] Figure 6This is a schematic diagram of the foot pedal mechanism in this utility model.

[0032] Figure 7 This is a schematic diagram of the seat frame mechanism in this utility model.

[0033] In the diagram: 1. Riser mechanism; 2. Lower frame mechanism; 3. Support mechanism; 4. Foot pedal mechanism; 5. Seat frame mechanism; 6. Upper frame mechanism; 7. Front riser; 8. Limiting block; 9. Lower beam component; 10. Lower crossbeam; 11. Curved beam one; 12. Connecting beam one; 13. Curved beam two; 14. Upper beam assembly; 15. Reinforcing rib two; 16. Upper beam one; 17. Transition beam; 18. Curved beam three; 19. Arc-shaped fixing plate. 20. Upper crossbeam; 21. Shock-absorbing suspension seat; 22. Support tube one; 23. Fixing seat one; 24. Support crossbeam; 25. Fixing seat two; 26. Connecting rod; 27. Foot pedal seat; 28. Fixing seat three; 29. ​​Fixing seat four; 30. Support tube two; 31. Seat frame; 32. Battery mounting seat one; 33. Battery mounting seat two; 34. Motorcycle bracket seat; 35. Reinforcing rib one; 36. Seat mounting seat. Detailed Implementation

[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0035] like Figures 1-7 As shown, the complete frame of this electric motorcycle includes a riser mechanism 1, an upper frame mechanism 6 and a lower frame mechanism 2 on the riser mechanism 1, a reinforcing rib 35 between the end of the lower frame mechanism 2 and the end of the upper frame mechanism 6, and the other end of the lower frame mechanism 2 is connected to the curved part of the upper frame mechanism 6, forming a mounting cavity between the lower frame mechanism 2 and the upper frame mechanism 6, and a support mechanism 3 between the upper frame mechanism 6 and the lower frame mechanism 2, the support mechanism 3 being located inside the mounting cavity, and the support mechanism 3 dividing the mounting cavity into a battery mounting cavity and a motor mounting cavity, the battery mounting cavity being close to the riser mechanism 1, a foot pedal mechanism 4 being located at the end of the upper frame mechanism 6, the foot pedal mechanism 4 being located below the lower frame mechanism 2, and a seat frame mechanism 5 being provided on the upper frame mechanism 6.

[0036] In this embodiment, the front wheel steering column is fixed by the riser mechanism 1, and the maximum steering angle of the front wheel steering column is limited. This ensures the electric motor is connected to the lower frame mechanism 2 and the upper frame mechanism 6 via reinforcing rib 35, filling weak connection areas, improving bending strength, and preventing deformation under bumpy conditions. The multi-angle bending beams of the lower frame mechanism 2 and the upper frame mechanism 6 optimize stress distribution, avoid stress concentration, and enhance structural strength. An installation cavity is formed between the riser mechanism 1, the lower frame mechanism 2, and the upper frame mechanism 6 to facilitate battery and motor installation. The lower frame mechanism 2 and the upper frame mechanism 6 are connected by a support mechanism 3. The upper frame mechanism 6 provides support, disperses stress, and forms a spatial truss structure to achieve lightweight and high rigidity, enhance structural strength, and divides the mounting cavity into a battery mounting cavity near the riser mechanism 1 and a motor mounting cavity away from the riser mechanism 1, realizing functional zoning, facilitating the balance of the center of gravity, suppressing cavity resonance, isolating the battery and motor heat dissipation areas, and reducing the risk of electromagnetic interference. It is laterally connected to the upper frame mechanism 6 through the foot pedal mechanism 4 to increase structural strength and provide foot pedal support. It cooperates with the upper frame mechanism 6 through the seat frame mechanism 5 to form a triangular support structure, improving the rigidity of the seat area.

[0037] The riser mechanism 1 includes a front riser 7, and a limit block 8 is fixed on the front side of the front riser 7.

[0038] In this embodiment, the front wheel steering column is fixed by the front riser tube 7, and the maximum steering angle of the front wheel is controlled by the limit block 8 to avoid cable entanglement.

[0039] The lower frame mechanism 2 includes two lower beams 9 arranged symmetrically on the left and right, and a lower crossbeam 10 is provided between the two lower beams 9. The lower beam 9 includes an integrally bent second beam 13, a connecting beam 12, and a first bent beam 11. The end of the second bent beam 13 is fixed to the rear side of the front upright tube 7. The axial angle between the end of the connecting beam 12 and the end of the second bent beam 13 is 145°, and the axial angle between the end of the connecting beam 12 and the end of the first bent beam 11 is 155°. Each second bent beam 13 is provided with a second battery mounting seat 33, and each connecting beam 12 is provided with a first battery mounting seat 32. The lower crossbeam 10 is located at the connection between the first bent beam 11 and the first connecting beam 12.

[0040] In this embodiment, the stress distribution is optimized and stress concentration is avoided by using a three-section multi-angle bending beam design consisting of bending beam 2 13, connecting beam 12 and bending beam 11. Battery mounting base 2 33 and battery mounting base 1 32 are used to install the battery. The lower crossbeam 10 is used to connect the lower beams 9 on both sides laterally, thereby enhancing the lateral rigidity of the frame and resisting lateral bending.

[0041] The upper frame mechanism 6 includes two symmetrically arranged upper beam assemblies 14, with an upper crossbeam 20 between the two upper beam assemblies 14. A shock-absorbing suspension seat 21 is provided on the upper crossbeam 20. The upper beam assembly 14 includes an integrally bent upper beam 16, a transition beam 17, and a curved beam 3 18. The upper ends of the two upper beams 16 are provided with reinforcing ribs 2 15. The axial angle between the end of the upper beam 16 and the end of the transition beam 17 is 165°. The axial angle between the end of the transition beam 17 and the end of the curved beam 3 18 is 158°. The curved beam 3 18 has a J-shaped structure, and the curved part of the curved beam 3 18 is provided with an arc-shaped fixing plate 19. A motorcycle bracket seat 34 is provided on the outer side of the curved part of one of the curved beams 3 18.

[0042] In this embodiment, the main frame is formed by a three-section multi-angle bending beam design consisting of upper beam 16, transition beam 17, and bending beam 18, in conjunction with two lower beam components 9. This multi-angle bending design disperses the overall stress, thereby ensuring structural strength while maintaining lightness and forming an installation cavity. The arc-shaped fixing plate 19 enhances the fatigue resistance of the bending parts and is also used for rear wheel installation. The upper crossbeam 20 is used to strengthen the lateral strength, the shock absorber suspension seat 21 is used to suspend the rear wheel shock absorber to improve the user experience, and the motorcycle bracket seat 34 is used to install the parking bracket to ensure parking stability.

[0043] The support mechanism 3 includes two support tubes 22 arranged symmetrically on the left and right. One end of each support tube 22 is fixed to the curved beam 11 of the lower beam 9 on the same side, and the other end of each support tube 22 is fixed to the transition beam 17 of the upper beam assembly 14 on the same side. Two fixing seats 23 are provided on the rear side of each end of the support tube 22. Two support beams 24 are provided between the two support tubes 22. One of the support tubes 22 is provided with a fixing seat 25, and one of the support beams 24 is provided with a fixing seat 25. The two fixing seats 25 are arranged symmetrically.

[0044] In this embodiment, two support tubes 22 connect two upper beam assemblies 14 and two lower beams 9 to provide vertical support, and together with two support beams 24 to provide lateral support, thereby enhancing the overall structural strength. Two fixing seats 25 are used to install motors. At the same time, the two support tubes 22 and the two support beams 24 divide the mounting cavity into two areas to facilitate leveling the center of gravity. Fixing seat 23 is used to fix other components.

[0045] The foot pedal mechanism 4 includes a connecting rod 26, which is fixed to the end of the curved beam 18 of the two upper beam assemblies 14. The connecting rod 26 is provided with two symmetrically arranged fixing seats 28, the positions of which correspond to the two fixing seats 25. Both ends of the connecting rod 26 are provided with foot pedal seats 27.

[0046] In this embodiment, the connecting rod 26 is used to connect the two upper beam assemblies 14, strengthen the lateral rigidity, and ensure the structural strength. The foot pedal 27 is used to install the foot pedal. The two left and right symmetrically arranged fixing seats 28 cooperate with the two fixing seats 25 to install the motor.

[0047] The seat frame mechanism 5 includes a seat frame 31. The lower end of the seat frame 31 is provided with two symmetrical and inclined support tubes 30. The ends of the seat frame 31 are fixed to the transition beams 17 of the two upper beam assemblies 14. The ends of the two support tubes 30 are respectively fixed to the curved beams 18 of the two upper beam assemblies 14. The upper end of the seat frame 31 is provided with a seat mounting seat 36, and the seat frame 31 is provided with a fixing seat 29.

[0048] In this embodiment, the seat frame 31 and the seat mounting base 36 are used to install and fix the seat. The two support tubes 30, the seat frame 31 and the two upper beam assemblies 14 cooperate to form a support mechanism to ensure the stability of the seat frame 31 and to ensure that it can bear a certain load. The fixing base 29 is used to install the controller.

[0049] The working principle of this utility model is as follows: The front wheel steering column is fixed by the front riser tube 7. The maximum steering angle of the front wheel is controlled by the limit block 8 to avoid cable entanglement. The lower frame mechanism 2 and the upper frame mechanism 6 are connected by the reinforcing rib 35 to fill the weak connection area, improve bending strength, and prevent deformation under bumpy conditions. The stress distribution is optimized by the multi-angle bending beams of the lower frame mechanism 2 and the upper frame mechanism 6. That is, the three-section multi-angle bending beam design of the upper beam 16, the transition beam 17 and the bending beam 18, combined with the three-section multi-angle bending beam design of the two lower beam parts 9 (bending beam 13, connecting beam 12 and bending beam 11), forms the main frame. Through this multi-angle bending design, the overall stress is dispersed, thereby ensuring structural strength while taking into account lightness. The installation cavity is formed, the stress distribution is optimized, stress concentration is avoided, and the structural strength is enhanced. The riser mechanism 1, the lower frame mechanism 2 and the upper frame are connected. The mechanism 6 forms an installation cavity to facilitate the installation of the battery and motor. Two upper beam components 14 and two lower beam components 9 are connected by two support tubes 22 to provide vertical support. Together with two support beams 24, they provide lateral support, disperse stress, and form a spatial truss structure to achieve lightweight and high rigidity, enhance structural strength, and divide the installation cavity into a battery installation cavity near the riser mechanism 1 and a motor installation cavity away from the riser mechanism 1 to achieve functional zoning, facilitate the balance of the center of gravity, suppress cavity resonance, isolate the battery and motor heat dissipation areas, and reduce the risk of electromagnetic interference. The connecting rod 26 is used to connect the two upper beam components 14 to strengthen lateral rigidity, increase structural strength, and provide foot support. The two support tubes 30, the seat frame 31, and the two upper beam components 14 cooperate to form a support mechanism to ensure the stability of the seat frame 31, improve the rigidity of the seat area, and ensure that it can bear a certain load.

[0050] All components are secured using welding.

[0051] In summary, by installing and fixing the front wheel steering column through the riser mechanism 1 and limiting the maximum steering angle of the front wheel steering column, the cable entanglement is prevented, ensuring the safety of electric motorcycle use.

[0052] The stress distribution is optimized by using the multi-angle bending structure of the lower frame mechanism 2 and the upper frame mechanism 6 to avoid stress concentration and enhance structural strength.

[0053] An installation cavity is formed between the riser mechanism 1, the lower frame mechanism 2, and the upper frame mechanism 6, which facilitates the installation of the battery and motor. It works in conjunction with the support mechanism 3 to provide support, distribute stress, and form a spatial truss structure, achieving lightweight and high rigidity, enhancing structural strength. At the same time, the installation cavity is separated to achieve functional zoning, which facilitates the balance of the center of gravity, suppresses cavity resonance, isolates the heat dissipation areas of the battery and motor, and reduces the risk of electromagnetic interference.

[0054] The seat cushion frame mechanism 5 and the upper frame mechanism 6 work together to form a triangular support structure, which improves the rigidity of the seat cushion area and ensures that it can bear a certain load.

[0055] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A complete frame for an electric motorcycle, comprising a riser mechanism (1), characterized in that, The riser mechanism (1) is provided with an upper frame mechanism (6) and a lower frame mechanism (2). A reinforcing rib (35) is provided between the end of the lower frame mechanism (2) and the end of the upper frame mechanism (6). The other end of the lower frame mechanism (2) is connected to the bent part of the upper frame mechanism (6). An installation cavity is formed between the lower frame mechanism (2) and the upper frame mechanism (6). A support mechanism (3) is provided between the upper frame mechanism (6) and the lower frame mechanism (2). The support mechanism (3) is located inside the installation cavity and divides the installation cavity into a battery installation cavity and a motor installation cavity. The battery installation cavity is close to the riser mechanism (1). A foot pedal mechanism (4) is provided at the end of the upper frame mechanism (6). The foot pedal mechanism (4) is located below the lower frame mechanism (2). A seat frame mechanism (5) is provided on the upper frame mechanism (6).

2. The complete frame for an electric motorcycle according to claim 1, characterized in that, The riser mechanism (1) includes a front riser (7), and a limit block (8) is fixed on the front side of the front riser (7).

3. The complete frame for an electric motorcycle according to claim 2, characterized in that, The lower frame mechanism (2) includes two lower beams (9) arranged symmetrically on the left and right. A lower crossbeam (10) is provided between the two lower beams (9). The lower beam (9) includes a bent beam (13), a connecting beam (12), and a bent beam (11) formed by bending in one piece. The end of the bent beam (13) is fixed to the rear side of the front upright (7). The axial angle between the end of the connecting beam (12) and the end of the bent beam (13) is 145°. The axial angle between the end of the connecting beam (12) and the end of the bent beam (11) is 155°. A battery mounting seat (33) is provided on the bent beam (13). A battery mounting seat (32) is provided on the connecting beam (12). The lower crossbeam (10) is located at the connection between the bent beam (11) and the connecting beam (12).

4. The complete frame for an electric motorcycle according to claim 3, characterized in that, The upper frame mechanism (6) includes two symmetrically arranged upper beam assemblies (14), with an upper crossbeam (20) between the two upper beam assemblies (14). The upper crossbeam (20) is provided with a shock-absorbing suspension seat (21). The upper beam assembly (14) includes an integrally bent upper beam one (16), a transition beam (17), and a curved beam three (18). The upper ends of the two upper beams one (16) are provided with reinforcing ribs two (15). The axial angle between the end of the upper beam one (16) and the end of the transition beam (17) is 165°. The axial angle between the end of the transition beam (17) and the end of the curved beam three (18) is 158°. The curved beam three (18) has a J-shaped structure, and the curved part of the curved beam three (18) is provided with an arc-shaped fixing plate (19). One of the curved parts of the curved beam three (18) is provided with a motorcycle bracket seat (34) on the outside.

5. The complete frame for an electric motorcycle according to claim 4, characterized in that, The support mechanism (3) includes two support tubes (22) arranged symmetrically on the left and right. One end of each support tube (22) is fixed on the curved beam (11) of the lower beam (9) on the same side, and the other end of each support tube (22) is fixed on the transition beam (17) of the upper beam assembly (14) on the same side. Two fixed seats (23) are provided on the rear side of each end of the support tube (22). Two support beams (24) are provided between the two support tubes (22). One of the support tubes (22) is provided with a fixed seat (25), and one of the support beams (24) is provided with a fixed seat (25). The two fixed seats (25) are arranged symmetrically.

6. The complete frame for an electric motorcycle according to claim 5, characterized in that, The foot pedal mechanism (4) includes a connecting rod (26), which is fixed to the end of the curved beam three (18) of the two upper beam assemblies (14). The connecting rod (26) is provided with two fixed seats three (28) arranged symmetrically on the left and right. The positions of the two fixed seats three (28) correspond to the two fixed seats two (25). Both ends of the connecting rod (26) are provided with foot pedal seats (27).

7. The complete frame for an electric motorcycle according to claim 6, characterized in that, The cushion frame mechanism (5) includes a cushion frame (31). The lower end of the cushion frame (31) is provided with two left-right symmetrical and inclined support tubes (30). The end of the cushion frame (31) is fixed on the transition beam (17) of the two upper beam assemblies (14). The ends of the two support tubes (30) are respectively fixed on the curved beams (18) of the two upper beam assemblies (14). The upper end of the cushion frame (31) is provided with a cushion mounting seat (36). The cushion frame (31) is provided with a fixing seat (29).

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