Lightweight hydrogen fuel electric moped framework
By designing a lightweight hydrogen fuel cell electric bicycle architecture, and utilizing the support of side plates and connecting cylinders as well as adjustable mounting hole slots, the problem of buffer and shock absorption structures being unable to cope with deuterium storage tanks was solved. This achieved stable support and shock absorption protection for the energy compartment and extended the service life of the buffer and shock absorber.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 金华坐标系工业设计有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-15
AI Technical Summary
The existing shock absorption structure of hydrogen fuel cell electric bicycles is insufficient to handle the heavy hydrogen storage tank, resulting in uneven body surface and requiring frequent replacement of shock absorbers.
A lightweight hydrogen fuel cell electric bicycle architecture was designed, including a front column, pedal frame, rear frame, buffer structure, and shock absorber. Through the support of side plates and connecting cylinders, the design of the placement frame, combined with adjustable mounting holes and slots, the energy compartment is supported and protected against shock.
It effectively avoids damage to the energy storage compartment, reduces vehicle tilt, improves the installation stability of the energy storage compartment, and extends the service life of the shock absorber.
Smart Images

Figure CN224241172U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electric bicycle architecture technology, and more specifically, to a lightweight hydrogen fuel cell electric bicycle architecture. Background Technology
[0002] With the rapid development of economic construction, electric bicycles, as a means of transportation, have also developed rapidly, bringing great convenience to people's travel and daily life. Currently, the power of new energy electric-assisted bicycles mainly uses various batteries as energy sources, including hydrogen fuel cells. Hydrogen fuel cells have the advantage of high energy density, but they also have the problem of heavy hydrogen storage tanks that need to be replaced. Existing electric-assisted bicycles mainly consist of a front section and a rear section. The front section is equipped with a front wheel, and the rear section is equipped with a rear wheel. It also includes a shock absorption structure, the general structure of which can be found in Chinese patent document with publication number CN118953550A. However, the shock absorption structure is difficult to cope with the heavy hydrogen storage tank in hydrogen fuel cell electric-assisted bicycles. When the shock absorber 22 is subjected to large pressure for a long time, it will undergo irreversible deformation, resulting in unevenness of the vehicle body and requiring frequent replacement of the shock absorber.
[0003] Therefore, a lightweight hydrogen fuel cell electric scooter architecture is needed to solve the above problems. Utility Model Content
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a lightweight hydrogen fuel cell electric assist vehicle architecture, including: a front column for mounting the front wheel and the front of the vehicle, a pedal frame, and a rear frame for mounting the rear wheel. The front column is fixedly connected to the pedal frame, and the pedal frame is movably connected to the rear frame. A buffer structure is provided between the pedal frame and the rear frame. The front column is in front, and the rear frame is in the back. The pedal frame includes two sub-braces, one end of which is welded and fixed to the lower end of the front column. The two sub-braces are distributed left and right and extend rearward to the upper side of the rear frame. A support rod is fixed between the two sub-supports at the middle section of the two sub-supports. Side plates are fixedly connected to both sub-supports and arranged opposite each other. A connecting cylinder is fixedly connected between the two side plates. A placement frame is fixedly installed between the connecting cylinder and the support rod. A support frame is fixed between the ends of the two sub-supports. A rotating cylinder is rotatably connected between the two side plates, and a rear end frame is fixedly installed on the rotating cylinder. The buffer structure includes two first connecting ends fixed to the support frame and a second connecting end fixed to the rear end frame. A buffer shock absorber is installed between the first connecting ends and the second connecting ends.
[0006] The side plates and connecting cylinders, along with the support rods, support the placement frame, keeping it away from the ground to prevent damage. Meanwhile, the rear frame and shock absorbers provide shock absorption.
[0007] Furthermore, the sub-support includes a front section and a rear section. One end of the front section is connected to the front column and extends horizontally backward. The rear section extends obliquely upward backward. A side stop bar is fixedly connected to the rear section. The side stop bar and the support frame form a enclosure structure. The support frame includes a frame body and a stabilizing plate part set at the lower end of the frame body. The two ends of the stabilizing plate part are respectively fixed to the rear sections of the two sub-supports. The first connecting end is fixed to the stabilizing plate part. The ends of the two branch rods extend to both sides of the frame body and are fixedly connected to the frame body.
[0008] The side bars and support frames create a protective enclosure structure for the energy storage unit, preventing damage.
[0009] Furthermore, the rear end frame includes: two connecting sections fixedly connected to the rotating cylinder and a crossbar section fixed between the two connecting sections, with two second connecting ends respectively fixed on the two connecting sections.
[0010] With the connection section and crossbar section set up, when buffering and shock absorption are performed, the connection section will rotate around the axis of the rotating cylinder, and then the buffer shock absorber will provide buffering.
[0011] Furthermore, an energy compartment is installed on the placement frame, and a positioning protrusion for fixing the energy compartment is fixedly installed on the side stop. The placement frame has a cylindrical part, and a drive shaft is rotatably connected inside the cylindrical part. The energy compartment drives the drive shaft by providing power to the motor.
[0012] Furthermore, the stabilizing plate has mounting holes arranged in a linear array, and the first connecting end has a through hole, through which bolts are passed to fix the first connecting end in place.
[0013] The mounting holes arranged in an array allow for adjustment of the mounting position of the first connection end. When the shock absorber undergoes irreversible deformation, the mounting position of the first connection end can be adjusted to prevent the vehicle body from tilting.
[0014] Furthermore, a stabilizing bar is fixedly connected between the two branch bars. The stabilizing bar is located on the rear side of the energy compartment, and screw holes for fixed connection with the energy compartment are provided on the stabilizing bar.
[0015] The stabilizer bar can limit the movement of the energy compartment, ensuring that it is securely installed.
[0016] Furthermore, foot pedals are connected to both ends of the drive shaft via a ratchet structure.
[0017] Furthermore, the placement frame has a mounting groove extending in the front-to-back direction. The screw passes through the mounting groove and is installed on the energy compartment. The end of the screw abuts against the edge of the mounting groove for fixed installation, so that the front-to-back position of the energy compartment can be adjusted by loosening the screw, so that the energy compartment is tightly attached to the stabilizing rod.
[0018] The beneficial effects of this application are as follows:
[0019] 1. The side plates and connecting cylinders, along with the support rods, support the placement frame, keeping it away from the ground to prevent damage. Meanwhile, the rear frame and shock absorbers provide shock absorption.
[0020] 2. The mounting holes arranged in an array can be used to adjust the mounting position of the first connection end. When the shock absorber undergoes irreversible deformation, the mounting position of the first connection end can be adjusted to prevent the vehicle body from tilting.
[0021] 3. The installation slot allows for adjustment of the front and rear position of the energy compartment by loosening the screws, ensuring that the energy compartment is tightly attached to the stabilizing rod, thus facilitating the installation of the energy compartment. Attached Figure Description
[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0023] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0024] In the attached diagram:
[0025] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;
[0026] Figure 2 yes Figure 1 A structural schematic diagram from another angle in the embodiment;
[0027] Figure 3 yes Figure 1 The installation diagram of the energy warehouse in the embodiment is shown.
[0028] Figure label:
[0029] 10. Front column; 11. Pedal frame; 12. Rear frame; 13. Sub-bracket; 14. Support rod; 15. Side plate; 16. Connecting cylinder; 17. Placement frame; 18. Support frame; 19. Rotating cylinder; 20. First connecting end; 21. Second connecting end; 22. Shock absorber; 23. Front section; 24. Rear section; 25. Side stop bar; 26. Energy compartment; 27. Stabilizer bar; 28. Mounting slot; 29. Connecting section; 30. Crossbar section; 31. Frame body; 32. Stabilizer plate; 33. Mounting hole; 34. Positioning protrusion; 35. Cylindrical part; 36. Drive shaft; 37. Foot pedal component. Detailed Implementation
[0030] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0031] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0033] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0034] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] Reference Figure 1-3 A lightweight hydrogen fuel cell electric bicycle frame includes: a front post 10, a pedal frame 11, a rear frame 12, sub-brackets 13, a support rod 14, a side plate 15, a connecting cylinder 16, a placement frame 17, a support frame 18, a rotating cylinder 19, a first connecting end 20, a second connecting end 21, and a shock absorber 22. The front post 10 is used to mount the front wheel and the front of the bicycle, while the rear wheel is mounted on the rear frame 12. The pedal frame 11 includes two sub-brackets 13, one end of which is welded and fixed to the lower end of the front post 10. The two sub-brackets 13 are distributed horizontally and extend rearward to the upper side of the rear frame 12. Each sub-bracket 13 includes a front section 23 and a rear section 24. One end of the front section 23 is connected to the front post 10 and extends horizontally rearward. The rear section 24 extends obliquely upward and rearward, and a side stop bar 25 is fixedly connected to the rear section 24. Side plates 15 are fixedly connected to the rear sections 24 of the two branch supports 13, and a connecting cylinder 16 is welded and fixed between the two side plates 15. A support rod 14 is welded and fixed between the two branch supports 13, and a placement frame 17 is welded and fixed between the support rod 14 and the connecting cylinder 16. An energy chamber 26 is fixedly installed on the placement frame 17 by screws. A stabilizing rod 27 is welded and fixed between the rear sections 24 of the two branch rods. The stabilizing rod 27 is located behind the energy chamber 26, and screw holes are opened on the stabilizing rod 27 for fixed connection with the energy chamber 26. The screws pass through the screw holes and are installed on the energy chamber 26 to fix the energy chamber 26. A mounting groove 28 extending in the front-to-back direction is opened on the placement frame 17. The screws pass through the mounting groove 28 and are installed on the energy chamber 26. The screw ends abut against the edge of the mounting groove 28 for fixation, so that the front-to-back position of the energy chamber 26 can be adjusted by loosening the screws, so that the energy chamber 26 is tightly attached to the stabilizing rod 27.
[0036] In one embodiment, a rotating cylinder 19 is rotatably connected between two side plates 15. A rear end frame 12 is welded and fixedly mounted on the rotating cylinder 19. The rear end frame 12 includes two connecting sections 29 welded and fixedly mounted to the rotating cylinder 19, and a crossbar section 30 fixed between the two connecting sections 29. The crossbar section 30 ensures the overall strength of the rear end frame 12. A support frame 18 is fixedly connected to the end of the rear section 24. The support frame 18 includes a frame body 31 and a stabilizing plate 32 located at the lower end of the frame body. The two ends of the stabilizing plate 32 are welded and fixedly mounted on the rear section 24 of the two sub-supports 13, respectively. A plurality of linearly arranged mounting holes 33 are provided on the stabilizing plate 32, and a first connecting end 20 is installed through the mounting holes 33. The first connecting end 20 has a through hole, and a bolt passes through the mounting hole 33 and a nut is installed to fix the first connecting end 20. A second connecting end 21 is fixed to the two connecting sections 29 of the rear end frame 12, and a shock absorber 22 is installed between the first connecting end 20 and the second connecting end 21. The first connecting end 20 and the second connecting end 21 are respectively rotatably engaged with the two ends of the buffer shock absorber 22, so that when the rear end frame 12 rotates around the axis of the rotating cylinder 19, it will squeeze the buffer shock absorber 22. The buffer shock absorber 22 can be a spring shock absorber in the prior art.
[0037] A positioning protrusion 34 for fixing the energy compartment 26 is fixedly provided on the side stop bar 25. The placement frame 17 has a cylindrical part 35, and a drive shaft 36 is rotatably connected inside the cylindrical part 35. The energy compartment 26 drives the drive shaft 36 by providing power to the motor. The two ends of the drive shaft 36 are connected to the foot pedal 37 through a ratchet structure. The drive shaft 36 transmits power to the rear wheel through a transmission structure. The transmission structure can be set as a chain drive. The motor can be fixed to the placement frame 17 or can drive the drive shaft 36 through the foot pedal 37.
[0038] Working process or usage method:
[0039] 1. When installing the energy compartment 26, the screw is connected to the energy compartment 26 after passing through the mounting slot 28. When it is not tightened, the front and back position of the energy compartment 26 can be adjusted so that the energy compartment 26 is close to the stabilizing rod 27, thereby fixing the stabilizing rod 27 and the energy compartment 26. Then the screw is tightened to complete the installation of the energy compartment 26.
[0040] 2. When the shock absorber 22 undergoes irreversible deformation, the installation position of the first connecting end 20 can be adjusted to install the first connecting end 20 at the mounting hole 33 at different positions, thereby adapting to shock absorbers 22 of different lengths and preventing the vehicle body from tilting.
[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A lightweight hydrogen fuel cell electric bicycle architecture, characterized in that: include: The front post (10) and pedal frame (11) are used to install the front wheels and the front of the vehicle, and the rear frame (12) is used to install the rear wheels. The front post (10) and pedal frame (11) are fixedly connected, and the pedal frame (11) and rear frame (12) are movably connected. A buffer structure is provided between the pedal frame (11) and the rear frame (12). The front post (10) is in front and the rear frame (12) is in the back. The pedal frame (11) includes two sub-supports (13) that are welded and fixed at one end to the lower end of the front column (10). The two sub-supports (13) are distributed to the left and right and extend to the upper side of the rear frame (12). A support rod (14) is fixed between the two sub-supports (13) and is erected in the middle section of the two sub-supports (13). A side plate (15) is fixedly connected to each of the two sub-supports (13). The two side plates (15) are arranged opposite to each other. A connecting tube (16) is fixedly connected between the two side plates (15). A placement frame (17) is fixedly set between the connecting tube (16) and the support rod (14). A support frame (18) is fixed between the ends of the two sub-supports (13). A rotating cylinder (19) is rotatably connected between the two side plates (15), and the rear end frame (12) is fixedly mounted on the rotating cylinder (19); The buffer structure includes two first connecting ends (20) fixed on the support frame (18) and a second connecting end (21) fixed on the rear frame (12). A buffer shock absorber (22) is installed between the first connecting ends (20) and the second connecting end (21).
2. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 1, characterized in that: The sub-support (13) includes a front section (23) and a rear section (24). One end of the front section (23) is connected to the front column (10) and extends horizontally to the rear. The rear section (24) extends obliquely upward to the rear. A side stop bar (25) is fixedly connected to the rear section (24). The side stop bar (25) and the support frame (18) form a enclosure structure. The support frame (18) includes a frame part (31) and a stabilizing plate part (32) set at the lower end of the frame. The two ends of the stabilizing plate part (32) are respectively fixed to the rear sections (24) of the two sub-supports (13). The first connecting end (20) is fixed to the stabilizing plate part (32). The ends of the two branch rods extend to both sides of the frame part (31) and are fixedly connected to the frame part (31).
3. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 2, characterized in that: The rear end frame (12) includes: two connecting sections (29) fixedly connected to the rotating cylinder (19) and a crossbar section (30) fixed between the two connecting sections (29), and two second connecting ends (21) fixed on the two connecting sections (29) respectively.
4. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 3, characterized in that: An energy chamber (26) is installed on the placement frame (17), and a positioning protrusion (34) for fixing the energy chamber (26) is fixed on the side stop (25). The placement frame (17) has a cylindrical part (35), and a drive shaft (36) is rotatably connected inside the cylindrical part (35). The energy chamber (26) drives the drive shaft (36) by providing power to the motor.
5. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 4, characterized in that: The stabilizing plate (32) has mounting holes (33) arranged in a linear array, and the first connecting end (20) has a through hole. The first connecting end (20) is fixedly installed by passing a bolt through the mounting holes (33).
6. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 5, characterized in that: A stabilizing rod (27) is fixedly connected between the two branch rods. The stabilizing rod (27) is located on the rear side of the energy chamber (26), and screw holes for fixed connection with the energy chamber (26) are opened on the stabilizing rod (27).
7. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 6, characterized in that: The drive shaft (36) has foot pedal components (37) connected to both ends by a ratchet structure.
8. The lightweight hydrogen fuel cell electric bicycle architecture according to claim 6, characterized in that: The placement frame (17) has an installation groove (28) extending in the front-to-back direction. The screw passes through the installation groove (28) and is installed on the energy chamber (26). The end of the screw abuts against the edge of the installation groove (28) for fixed installation, so that the front-to-back position of the energy chamber (26) can be adjusted by loosening the screw, so that the energy chamber (26) is tightly attached to the stabilizer bar (27).