Portable hydrogen energy bicycle

Abstract

The invention discloses a portable hydrogen energy bicycle, and belongs to the field of bicycles. Comprising a rear wheel and driving part and a front wheel and control part. The rear wheel and driving part comprises a vertical pipe, a first lower pipe arranged on the front side of the vertical pipe, two rear forks located on the rear side of the vertical pipe and used for installing driving wheels, a clothes hanger supporting structure installed on the rear forks and a stand column, and a first box fixedly installed on the vertical pipe and / or the rear forks. A fuel cell arranged in the first box body is arranged in the first box body, the second box body is fixedly mounted on the clothes hanger supporting structure, and the hydrogen storage device is fixedly mounted in the second box body in a detachable manner; the hydrogen supply system and the fuel cell power generation system of the hydrogen energy bicycle are both arranged on the rear wheel and the driving part and are folded as a whole, the influence on gas circuit connection and a control circuit after folding is avoided, the whole bicycle is designed to be light in weight, and a user can conveniently use and carry the bicycle.

Description

Technical Field

[0001] The invention belongs to the field of bicycles, in particular to a portable hydrogen-energy bicycle. Background Art

[0002] A hydrogen bicycle is a mechatronic personal transportation tool that uses hydrogen energy as an auxiliary energy source based on an ordinary bicycle. The main components of a hydrogen bicycle include a hydrogen fuel cell, a hydrogen storage device, a controller, a motor, lamps, and a frame.

[0003] Most of the existing hydrogen-powered bicycles are fixed as a whole and cannot be folded, which easily takes up space and limits the portability of the bicycle. It is inconvenient for users to carry the hydrogen-powered bicycle upstairs and into the house, and it is also inconvenient to carry and transport it over long distances. The above problems affect the wider popularization of hydrogen-powered bicycles.

[0004] Folding bicycles are more and more popular because of their foldability, small size, easy storage and portability. The structure of ordinary folding bicycles cannot be directly transferred to hydrogen bicycles. Due to the presence of hydrogen supply system and fuel cell power generation system in the main components of hydrogen bicycles, it is necessary to overcome technical obstacles such as gas circuit connection and control circuit. In addition, hydrogen bicycles are heavy and cannot stand on their own even after being folded. It is not convenient for users to lift them, which causes inconvenience in transportation. Summary of the invention

[0005] In order to overcome the above technical defects, the present invention provides a portable hydrogen-powered bicycle to solve the problems involved in the background technology.

[0006] The present invention provides a portable hydrogen-powered bicycle, comprising:

[0007] The rear wheel and driving part include a riser, a first down tube arranged at the front side of the riser, two rear forks located at the rear side of the riser for mounting the driving wheel, a hanger support structure mounted on the rear forks and the column, a first box fixedly mounted on the riser and / or the rear fork, which has a fuel cell built in the first box, a second box fixedly mounted on the hanger support structure, and a hydrogen storage device fixedly mounted in the second box in a detachable manner;

[0008] The front wheel and control part include a second down tube, a head tube disposed at the other end of the second down tube, a front fork mounted at the lower part of the head tube for mounting the driven wheel, and a handlebar mounted at the upper part of the head tube;

[0009] The folding part includes a first hinged part fixedly installed between the first lower tube and the second lower tube, and a first clamping part arranged on the first hinged part and maintaining or releasing the fixed connection between the first lower tube and the second lower tube.

[0010] Preferably or optionally, a handle is further provided between the first down tube and the vertical tube.

[0011] Preferably or optionally, a saddle frame is plugged into the stand pipe, and a first pipe clamp is provided between the saddle frame and the stand pipe;

[0012] The length of the saddle frame is greater than the length of the riser, and the difference between the height of the saddle frame and the height of the riser is equal to or approximately equal to the height from the bottom of the riser to the ground.

[0013] Preferably or optionally, the head tube includes: a first head tube, a second head tube plugged into the first head tube and fixedly connected to the handlebar, and a second tube clamp arranged between the first head tube and the second head tube.

[0014] Preferably or optionally, the head tube further comprises: a second hinged member arranged between the bottom of the second head tube and the top of the front fork, and a second clamping member arranged on the second hinged member and suitable for maintaining or releasing the fixed connection between the bottom of the head tube and the front fork.

[0015] Preferably or optionally, the first clamp is arranged to be attached to the connection end surfaces of the first lower tube and the second lower tube, so that the two first lower tubes and the second lower tube are kept in a coaxially connected state; comprising:

[0016] The first element comprises a rotating shaft rotatably mounted on the first lower tube connection part, and a locking cap arranged on one side of the rotating shaft and protruding outward; the first lower tube connection part is arranged on one side of a connection end face of a rigid member thereof and protrudes outward;

[0017] The second element comprises a connecting piece, one end of which is rotatably mounted on the second lower tube connecting portion and the other end of which can be engaged with the first lower tube connecting portion, and a locking groove arranged on the connecting piece and capable of engaging with the locking cap; the second lower tube connecting portion is arranged on one side of the connecting end surface of the other rigid member and protrudes outwards;

[0018] The safety element comprises a clamping groove arranged on the first lower tube connecting part, and a retractable buckle arranged on the connecting piece and capable of being embedded in the clamping groove and maintaining a locked state.

[0019] Preferably or optionally, the lower part of the rear fork is fixedly connected to the bottom of the seat tube; the upper part of the rear fork is fixedly connected to the seat tube via a horizontally placed mounting frame.

[0020] Preferably or optionally, the mounting frame is bent downward to form at least two first mounting parts, the first mounting part is inserted into the first box body; the second mounting part is fixedly mounted at the lower part of the vertical pipe and located inside the first box body; the fuel cell is fixedly mounted on the first mounting part and the second mounting part.

[0021] Preferably or optionally, the lower part of the rear fork is plugged into and passes through the bottom of the first box;

[0022] A brushless motor is also arranged inside the first box body, a third mounting portion is arranged between the lower portions of the rear forks, and the brushless motor is fixed between the third mounting portions.

[0023] Preferably or optionally, a wiring channel and an air channel are provided on the mounting frame, and a third box is provided on the upper portion of the mounting frame, and the third box is used to be connected to the first box and the second box.

[0024] Preferably or optionally, a central control device and a power storage device are also provided inside the third box.

[0025] The present invention relates to a portable hydrogen-powered bicycle, which has the following beneficial effects compared with the prior art:

[0026] 1. The present invention rearranges the positions of the hydrogen storage device and the fuel cell, arranges the hydrogen storage device on the hanger support structure, and arranges the central control device and the power storage device above the fuel cell, so that the installation position and space of the fuel cell when integrated with the whole vehicle are increased, and the volume of the first box is reduced. By partitioning the fuel cell and the battery, the heat dissipation performance of the entire power system is improved. Moreover, the hydrogen storage device is at the rear, which can reduce the height and volume of the hydrogen energy vehicle, making the entire vehicle more compact, achieving the lightweight of the entire vehicle, and convenient for users to use and carry.

[0027] 2. The present invention provides a handle between the first down tube and the seat tube. On the one hand, the handle can serve as a reinforcing rib to improve the stability of the entire bicycle. On the other hand, the handle can facilitate the user to lift the entire bicycle and facilitate the transportation of the hydrogen-powered bicycle.

[0028] 3. The present invention realizes the lifting and lowering of the saddle by setting a lifting saddle frame to meet the height and usage requirements of different groups of people. In addition, by fully inserting the saddle frame into the vertical pipe, the bottom of the saddle frame is in contact with the ground, and the front and rear wheels are grounded, so that the folded hydrogen-powered bicycle can be in a standing state, which is convenient for users to lift the bottomed saddle frame by the handle to realize towing or lifting the whole vehicle, which is convenient for the transportation of the hydrogen-powered bicycle.

[0029] 4. The present invention realizes the lifting and lowering of the handlebars by providing a lifting head tube, which meets the height and usage requirements of different groups of people and improves the comfort of use of the hydrogen energy bicycle.

[0030] 5. The present invention can further reduce the height of the entire bicycle in the folded state by configuring the handlebars to be a foldable structure, thereby improving the portability of the hydrogen-powered bicycle.

[0031] 6. The mounting frame in the present invention is a part of the frame, which is interconnected with the seat tube, rear fork and frame tube to form a stable rigid structure; and the mounting frame is used as a main fixing member to install and fix the first box body and the third box body.

[0032] 7. The present invention fixes the fuel cell through the first mounting part and the second mounting part, so that the fuel cell does not need to be fixed in the first box body. The first box body mainly plays a role of waterproofing, dustproofing and forming a heat dissipation flow channel, which can greatly reduce the requirements for the structural strength and weight of the first box body, realize the lightweight of the entire vehicle, and then improve the portability of the hydrogen-powered bicycle.

[0033] 8. The present invention fixes the brushless motor between the lower parts of the rear forks, eliminating the need to fix the brushless motor in the first box, thereby ensuring the lightweight of the vehicle and achieving driving or auxiliary driving of the two-wheeled vehicle through the brushless motor.

[0034] 9. The present invention fixes the connecting lines and pipelines between the hydrogen storage device and the fuel cell by arranging a third box on the mounting frame and arranging a wiring channel and an air channel on the mounting frame body, which is convenient for the management of the wiring harness and the air pipe, can avoid the cross-entanglement of cables, and is convenient for maintenance.

[0035] 10. The present invention moves the central control device and the power storage device into the third box, so that the fuel cell is boxed separately, which greatly reduces the volume of the first box, making the entire vehicle more compact and reducing the volume, thereby improving the portability of the hydrogen bicycle.

[0036] 11. The present invention also provides auxiliary support wheels, which cooperate with the driving wheel and the driven wheel to form three-point support points to further facilitate the support and promotion of the folding bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of the hydrogen energy bicycle of the present invention.

[0038] Figure 2 It is a schematic structural diagram of a hydrogen energy bicycle in the folded state according to the present invention.

[0039] Figure 3 It is a schematic diagram of the external structure of the hydrogen energy vehicle power system in the present invention.

[0040] Figure 4 It is a schematic diagram of the internal structure of the hydrogen energy vehicle power system in the present invention.

[0041] Figure 5 It is a schematic diagram of the explosion of the hydrogen energy vehicle power system in the present invention.

[0042] Figure 6 It is a structural schematic diagram of the mounting frame in the present invention.

[0043] Figure 7 It is a side view schematic diagram of the locking mechanism of the present invention (in the locked state).

[0044] Figure 8 It is a structural schematic diagram of the locking mechanism of the present invention (in the locked state).

[0045] Fig. 9 It is a structural schematic diagram of the connecting piece in the present invention.

[0046] Fig.10 It is a structural schematic diagram of the insurance element in the present invention.

[0047] Fig.11 It is a schematic structural diagram of another hydrogen energy bicycle in the present invention in a folded state.

[0048] The accompanying drawings are marked as follows:

[0049] 111, seat tube; 112, rear fork; 112a, upper part of rear fork; 112b, lower part of rear fork; 113, hanger support structure; 114a, saddle; 114b, saddle frame; 114c, first bundle of pipe clamps; 115, rear seat; 116, driving wheel; 117, handle; 118, foot pedal; 119, auxiliary moving wheel;

[0050] 121, down tube; 121a, first down tube; 121b, second down tube; 122, head tube; 122a, first head tube; 122b, second head tube; 122c, second tube clamp; 123, front fork; 124, handlebar; 125, driven wheel; 124a, brake handle; 124b, bell; 124c, display screen;

[0051] 130, mounting frame; 131, fitting portion; 132, bending surface; 134, first mounting portion; 135, wiring channel; 136, air channel;

[0052] 141, first hinge; 142, first clamp; 143, second hinge; 144, second clamp;

[0053] 210, first box body; 211, left shell; 212, right shell; 213, mounting groove; 214, air deflector; 215, air outlet cover; 216, second mounting part; 217, beam limiting pressure plate; 218, third mounting part;

[0054] 220, second box body; 221, semi-enclosed cover body;

[0055] 230, third box;

[0056] 240. Fuel cell; 241. Stack controller;

[0057] 250. Hydrogen storage device;

[0058] 260, central control device;

[0059] 270. Electricity storage device;

[0060] 280, cooling fan;

[0061] 290, brushless motor;

[0062] 310, first element; 311, rotating shaft; 312, locking cap; 320, second element; 321, connecting member; 3211, rotating portion; 3212, main body; 3213, protruding portion; 3214, handle portion; 3215, hollow groove; 3216, installation cavity; 322, locking groove; 330, safety element; 331, card slot; 332, retractable buckle; 333, pull rod; 334, pull handle; 335, elastic member. DETAILED DESCRIPTION

[0063] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0064] This embodiment designs a portable hydrogen-powered bicycle, the main components of which include a frame, an electric drive device, a hydrogen storage device 250, a fuel cell 240, a central control device 260, and a power storage device 270. The hydrogen storage device 250 supplies hydrogen to the fuel cell 240, and the fuel cell 240 converts hydrogen energy into electrical energy to supply power to the electric drive device, so that the pedals 118 and / or the electric drive device drive the hydrogen-powered bicycle forward.

[0065] See attached Figures 1 to 10The hydrogen vehicle includes: a rear wheel and a driving part and a front wheel and a control part. The rear wheel and the driving part and the front wheel and the control part are hinged together through a folding part to achieve folding of the rear wheel and the driving part and the front wheel and the control part.

[0066] The rear wheel and driving part include a riser 111, a first down tube 121a arranged at the front side of the riser 111, two rear forks 112 located at the rear side of the riser 111 for mounting a driving wheel 116, a hanger support structure 113 installed on the rear forks 112 and the column, a first box 210 fixedly installed on the riser 111 and / or the rear fork 112, which has a fuel cell 240 built in the first box 210, a second box 220 fixedly installed on the hanger support structure 113, a hydrogen storage device 250 fixedly installed in the second box 220 in a detachable manner, a third box 230 fixedly installed at the connection between the first box 210 and the second box 220, and a central control device 260 and a power storage device 270 arranged in the third box 230.

[0067] By rearranging the positions of the hydrogen storage device 250, the central control device 260, the power storage device 270 and the fuel cell 240, the hydrogen supply system, the fuel cell 240 power generation system and the control system of the hydrogen energy bicycle are all arranged on the rear wheel and the driving part, and are folded as a whole, avoiding the influence of folding on the gas circuit connection and the control line, and perfectly combining the hydrogen energy bicycle with the folding bicycle. In addition, by moving the central control device 260 and the power storage device 270 out of the third box body 230, the fuel cell 240 is boxed separately, which greatly reduces the volume of the first box body 210, making the entire vehicle more compact, reducing the volume of the entire vehicle, and thus improving the portability of the hydrogen energy bicycle.

[0068] The front wheel and control part include a second lower tube 121b, a head tube 122 arranged at the other end of the second lower tube 121b, a front fork 123 installed at the lower part of the head tube 122 for installing a driven wheel 125, and a handlebar 124 installed at the upper part of the head tube 122. The head tube 122 includes: a first head tube 122a, a second head tube 122b plugged into the first head tube 122a and fixedly connected to the handlebar 124, and a second tube clamp 122c arranged between the first head tube 122a and the second head tube 122b. By setting a lifting head tube 122, the lifting and lowering of the handlebar 124 can be achieved, which meets the height and use requirements of different groups of people and improves the use comfort of the hydrogen-powered bicycle.

[0069] The handlebar 124 is also provided with a display screen 124c, a bell 124b and two brake handles 124a. The brake handles 124a and the display screen 124c are connected to the central control device 260 located in the third box 230 through flexible lines along the second lower tube 121b and the first lower tube 121a. Due to the change in the position of the central control device 260, the number and length of control lines can be effectively reduced. By providing the display screen 124c, the relevant parameters of the hydrogen fuel cell 240 power generation system and the hydrogen storage device 250 can be understood in real time, thereby improving the user experience.

[0070] The folding part includes a first hinge 141 fixedly installed between the first lower tube 121a and the second lower tube 121b, and a first clamp 142 arranged on the first hinge 141 to maintain or release the fixed connection between the first lower tube 121a and the second lower tube 121b. The first clamp 142 can be in various forms, including but not limited to the following structures: structure 1 is a lock rod and a lock buckle respectively arranged on both sides of the first lower tube 121a and the second lower tube 121b; structure 2 is a corresponding jack arranged on the circumference of the first lower tube 121a and the second lower tube 121b and a connecting rod inserted into the jack; structure 3 is a flange arranged on the circumference of the connection between the first lower tube 121a and the second lower tube 121b and a clamp for fixing and fastening the two flanges. When folding, the user only needs to release the fixed connection between the first lower tube 121a and the second lower tube 121b, so that the rear wheel and the driving part and the front wheel and the control part are stacked together to reduce the length of the hydrogen bicycle and improve the portability of the whole vehicle.

[0071] However, the structure of the first clamp 142 is relatively complex, and all of them have exposed handles. The handles are relatively large. If a collision or vibration occurs during riding, it is easy to cause joint movement, forming a safety hazard. Therefore, in this embodiment, a first clamp 142 for a folding joint is proposed, which is convenient and labor-saving to disassemble and assemble and has high safety, that is, a first clamp. The first clamp 142 is arranged to be attached to one side of the connecting end faces of the two rigid parts, and the other sides of the connecting end faces of the two rigid parts are hinged to each other, so that the two rigid parts remain in a coaxial connection state. The two rigid parts correspond to the first lower tube 121a and the second lower tube 121b respectively.

[0072] See attached Figures 2 to 5The first clamping member 142 includes: a first element 310, a second element 320 and a safety element 330. The first element 310 includes a rotating shaft 311 rotatably mounted on the first lower tube connection part, and a locking cap 312 disposed on one side of the rotating shaft 311 and protruding outward; the first lower tube connection part is disposed on one side of a rigid member connection end surface thereof and protrudes outward; the second element 320 includes a connecting member 321 rotatably mounted on the second lower tube connection part at one end and capable of being engaged with a side surface of a rigid member connection end surface thereof at the other end, and a locking groove 322 disposed on the connecting member 321 and capable of being engaged with the locking cap 312; the second lower tube connection part is disposed on one side of another rigid member connection end surface and protrudes outward; the safety element 330 includes a clamping groove 331 disposed on the first lower tube connection part, and a retractable buckle 332 disposed on the connecting member 321 and capable of being engaged with the clamping groove 331 and maintaining a locked state.

[0073] When the two rigid parts are kept in a coaxial connection, the connecting part 321 rotates along the rotation axis on the second lower tube connection part, so that the locking cap 312 is engaged in the locking groove 322, so that the first element 310 is connected to the second element 320; then the connecting part 321 is further rotated so that it is engaged on the second lower tube connection part, so that the second element 320 is connected to the one of the rigid parts, and finally the retractable buckle 332 is engaged in the buckle groove 331, so that the two rigid parts are in a coaxial connection and kept in a locked state, so as to avoid the two rigid parts from colliding or vibrating, causing the folding joint to move and causing the connection to be unstable.

[0074] In a further embodiment, a torsion spring is provided between the locking cap 312 and / or the rotating shaft 311 and a side surface of a rigid member connecting end surface, so that a predetermined angle is formed between the locking cap 312 and a side surface of a rigid member connecting end surface. The predetermined angle is mainly used to provide a restoring force for the locking cap 312 and / or the rotating shaft 311 to bounce off the connecting member 321, so as to facilitate the user to disassemble and assemble the foldable joint.

[0075] In a further embodiment, the first lower tube connection part and the second lower tube connection part are both provided with a first notch and a second notch, respectively used to install the first element 310 and the second element 320. It should be noted that when the connecting member 321 is embedded in the second lower tube connection part, the connecting member 321 can just be embedded in the first notch, thereby ensuring the stability of the connection between the connecting member 321 and the one rigid member.

[0076] In a further embodiment, the connecting member 321 is an integrally formed structure. In order to facilitate the description of the function and structure of the connecting member 321, the connecting member 321 is divided into a rotating portion 3211, a main body portion 3212 and a handle portion 3214. The rotating portion 3211 is located at the fixed end of the connecting member 321; it is rotatably mounted on the second mounting portion, and the profile of the rotating portion 3211 close to one side of the rigid part thereof is adapted to the shape of the rotating shaft 311, the first notch and the second notch, which ensures the free rotation of the first element 310 on the one hand and the stability of the connection between the first element 310 and the second element 320 on the other hand. The main body 3212 is located in the middle of the connecting member 321; a protrusion 3213 is formed on the side of the main body 3212 close to one of the rigid members, and the protrusion 3213 can be abutted against the outer surface of one of the rigid members; the locking groove 322 is arranged on the protrusion 3213, which is used to ensure the stability of the connection between the first element 310 and the second element 320, and a mounting cavity 3216 is also arranged inside the protrusion 3213, and an elastic device is arranged in the mounting cavity 3216; the elastic device is arranged to keep the retractable buckle 332 in the state of being embedded in the slot 331, and allow the retractable buckle 332 to be separated from the slot 331 in response to the user's action. The handle 3214 is located at the movable end of the connecting member 321; the handle 3214 is bent or bent to a predetermined extent toward the side away from one of the rigid members, so as to be convenient for rotating the connecting member 321, and ensure that the disassembly and assembly action is convenient and labor-saving.

[0077] In addition, a hollow groove 3215 is formed in the middle of the handle portion 3214 for installing the user operation part of the elastic device. Specifically, the elastic device includes: a pull rod 333, a pull handle 334 and an elastic member 335; the pull rod 333 passes through the protruding portion 3213 along the hollow groove 3215 and is arranged in the installation cavity 3216; the pull rod 333 is also provided with a pull handle 334 at one end of the hollow groove 3215, allowing the user to pull the pull rod 333 toward the movable end of the connecting member 321; the pull rod 333 is connected to the retractable buckle 332 at one end of the installation cavity 3216 to ensure the synchronous movement of the pull rod 333 and the retractable buckle 332; the elastic member 335 is mounted on the pull rod 333 to provide the pull rod 333 with a force to keep the retractable buckle 332 engaged in the slot 331. During the disassembly operation, the user presses the palm of his hand against the rear end of the handle portion 3214, hooks the handle 334 with two fingers, and pulls the pull rod 333 backward, so that the pull rod 333 overcomes the elastic force of the elastic member 335, so that the retractable buckle 332 disengages from the slot 331, thereby releasing the locking state of the connection between the first element 310 and the second element 320.

[0078] During the unfolding and fixing process, the two rigid parts are rotated to maintain a coaxial state. The user rotates the second element 320 to rotate the connecting member 321 along the rotation axis on the second mounting portion, and the locking cap 312 is engaged with the locking groove 322 to achieve the connection between the first element 310 and the second element 320; then the connecting member 321 is further rotated to engage with the second notch of the second mounting portion, so that the second element 320 is connected to one of the rigid parts. Since the other sides of the two rigid parts are connected by hinged fixing, the two rigid parts are maintained in a coaxial connection state. Finally, under the action of the elastic force of the elastic member 335, the retractable buckle 332 is engaged in the card slot 331, so that the two rigid parts are in a coaxial connection and remain locked, avoiding the problem of joint movement and unstable connection caused by collision or vibration of the two rigid parts.

[0079] In a further embodiment, a second hinge 143 is provided between the bottom of the second head tube 122b and the top of the front fork 123, and a second clamp 144 suitable for maintaining or releasing the fixed connection between the head tube 122 and the front fork 123 is provided on the second hinge 143. When folding, the user only needs to release the fixed connection between the head tube 122 and the front fork 123, so that the handlebar 124 and the front fork 123 are overlapped, which can further reduce the height of the whole bicycle in the folded state, thereby improving the portability of the hydrogen-powered bicycle.

[0080] In a further embodiment, a saddle frame 114b is plugged into the riser 111, and a first tube clamp 114c is further provided between the saddle frame 114b and the riser 111; the lifting saddle frame 114b is provided to achieve the lifting of the saddle 114a, so as to meet the height and usage requirements of different groups of people. In addition, the length of the saddle frame 114b is greater than the length of the riser 111. Since the saddle frame 114b is generally inclined, the difference between the height of the saddle frame 114b and the height of the riser 111 is equal to or approximately equal to the height from the bottom of the riser 111 to the ground. By fully inserting the saddle frame 114b into the riser 111, the bottom of the saddle frame 114b is in contact with the ground, and the front and rear wheels are grounded, so that the folded hydrogen-powered bicycle can be in a standing state, which is convenient for the user to lift the bottomed saddle frame 114b through the handle 117, so as to achieve the towing or lifting of the whole vehicle, and facilitate the transportation of the hydrogen-powered bicycle. In order to realize the installation and fixation of the first box body 210, the second box body 220 and the third box body 230, the rear fork lower part 112b is fixedly connected to the bottom of the seat tube 111; the rear fork upper part 112a is fixedly connected to the seat tube 111 through a horizontally placed mounting bracket 130. The front end of the mounting bracket 130 forms an arc-shaped fitting part 131, which is fitted on the seat tube 111 and fixedly installed on the seat tube 111 by bolting or welding. The mounting bracket 130 is approximately perpendicular to the seat tube 111. The rear end of the mounting bracket 130 is bent downward to form a bending surface 132, and two mounting holes are provided on the bending surface 132 for fixing the two rear fork upper parts 112a.

[0081] The front end of the mounting frame 130 is bent downward to form at least two first mounting parts 134, which are inserted into the first box body 210; the second mounting part 216 is fixedly mounted at the lower part of the vertical pipe 111 and located inside the first box body 210; the fuel cell 240 is fixedly mounted on the first mounting part 134 and the second mounting part 216 by bolts or nuts. The fuel cell 240 is fixed by the first mounting part 134 and the second mounting part 216, so that the fuel cell 240 does not need to be fixed in the first box body 210. The first box body 210 mainly plays a role of waterproofing, dustproofing and forming a heat dissipation flow channel, which can greatly reduce the structural strength requirements of the first box body 210. Therefore, the first box body 210 can be made of plastic components to achieve a lightweight design of the entire vehicle, thereby improving the portability of the hydrogen-powered bicycle.

[0082] In addition, the rear fork lower portion 112b is inserted into and passes through the bottom of the first box body 210. By embedding the bottom of the first box body 210 on the rear fork lower portion 112b, the mounting groove 213 at the front end of the first box body 210 is embedded in the seat tube 111, and the upper portion of the first box body 210 is connected to the mounting frame 130, thereby achieving fixed installation of the first box body 210.

[0083] The first box body 210 is formed by splicing a left shell 211 and a right shell 212. The front end face of the first box body 210 is wedge-shaped, and the top of the wedge is recessed inward to form a mounting groove 213. A deflector 214 is installed on the inclined surfaces on both sides of the mounting groove 213. An air outlet hood 215 is arranged on the rear end face of the first box body 210, and a cooling fan 280 is arranged on the fuel cell 240 and on a side close to the air outlet hood 215. A stack controller 241 is arranged on one side of the cooling fan 280 to adjust parameters such as the start-up, working power and cooling power of the fan of the fuel cell 240 according to demand. The fan guides the air to flow from the deflector 214 to the air outlet hood 215 to form a cooling channel, thereby achieving heat dissipation of the fuel cell 240 and improving the reaction efficiency of the fuel cell 240. Among them, a predetermined gap is left between the fuel cell 240 and the inner surface of the first box body 210, and because there is only the fuel cell 240 inside the first box body 210, the gap formed between the first box body 210 is relatively small. Under the same fan power, the heat dissipation flow channel formed in this embodiment has a higher flow rate, which has a better heat dissipation effect on the fuel cell 240.

[0084] The second box body 220 is installed inside the hanger support structure 113, and its front part is connected to the first box body 210 and the third box body 230 to form a whole, so as to realize the fixed installation of the second box body 220. The second box body 220 is arranged above the driving wheel 116 for placing the hydrogen storage device 250. The user can directly plug the hydrogen storage device 250 from the tail of the second box body 220 into the second box body 220, which is convenient for the disassembly and installation of the hydrogen storage device, and is conducive to the market penetration rate of hydrogen energy bicycles. In addition, a predetermined gap is left between the upper surface of the second box body 220 and the upper part of the hanger support structure 113. It is prevented that the rear seat 115 is pressed against the hydrogen storage device 250 when carrying people or goods, causing the hydrogen storage device 250 to deform and displace, thereby affecting the hydrogen supply of the fuel cell 240.

[0085] In addition, a female connector or a male connector connected to the fuel cell 240 is provided inside the second box 220; a male connector or a female connector is provided at the hydrogen outlet of the hydrogen storage device 250. The male connector and the female connector enable the rapid assembly and disassembly of the gas path between the hydrogen storage device 250 and the fuel cell 240, thereby ensuring the smoothness of gas transmission and greatly improving the convenience of assembly and disassembly of the hydrogen storage device 250.

[0086] The third box 230 is a semi-enclosed cover 221, the rear end of which is an open surface, connected to the rear end surface of the second box 220, and the lower part is directly fixedly mounted on the upper part of the mounting frame 130 to form a cavity for mounting the central control device 260 and the power storage device 270. A metal plate is installed between the central control device 260 and the power storage device 270, which is used to install and fix the power storage device 270 on the one hand, and to facilitate the heat dissipation of the power storage device 270 on the other hand. The power storage device 270 uses a lithium battery, which is located above the central control device 260 and has the characteristics of small size and light weight, further reducing the weight of the vehicle. The central control device 260 is installed in close contact with the mounting frame 130. Since the mounting frame 130 is made of metal material, it has a relatively high thermal conductivity and can dissipate heat well, ensuring the normal operation of the central control device 260 and the power storage device 270, without the need to install an additional heat dissipation device.

[0087] The mounting frame 130 is provided with a wiring channel 135 and an air channel 136. The hydrogen storage device 250 located in the second box 220 is connected to the fuel cell 240 located inside the first box 210 through a hydrogen pipeline passing through the third box 230 and the air channel 136. The air channel 136 is a circular hole, and an elastic rubber ring is provided on the circular hole to fix and protect the hydrogen pipeline. The control circuit and the power supply circuit are connected to the fuel cell 240 and the central control device 260 through the wiring channel 135.

[0088] In order to further arrange the gas supply lines, control lines and power supply lines, a wire harness pressure plate 217 is provided on one side of the fuel cell 240 to facilitate the management of the wire harness and the air pipe, avoid cross-entanglement of cables, and facilitate maintenance.

[0089] A brushless motor 290 is also provided inside the first box 210, and the brushless motor 290 is fixed between the rear fork lower parts 112b, and a third mounting part 218 is provided between the rear fork lower parts 112b, and the brushless motor 290 is fixed on the third mounting part 218. The brushless motor 290 is in transmission connection with the driving wheel 116, realizing two driving modes of the brushless motor 290 and the pedal 118, and the driving mode is reasonably controlled through the control program, so as to improve the energy utilization rate and facilitate the normal riding of the user in the case of hydrogen deficiency.

[0090] Of course, it is understandable to those skilled in the art that various valve assemblies, three-way valves or four-way valves are also provided inside the first box 210 to meet the hydrogen supply and exhaust requirements of the fuel cell 240. In this embodiment, the valve assembly, three-way valve or four-way valve is located between the brushless motor 290 and the fuel cell 240, which can further compress the space and ensure heat dissipation.

[0091] In order to facilitate understanding of the technical solution of the portable hydrogen-powered bicycle, a brief description of its working principle is given: during the folding process, first, open the first tube clamp 114c below the saddle frame 114b, insert the saddle frame 114b completely into the seat tube 111, and then buckle the first tube clamp 114c; secondly, open the second tube clamp 122c in the middle of the head tube 122, insert the handlebar 124 into the head tube 1224, and then buckle the second tube clamp 122c; then, open the second clamp 144 below the head tube 122, and insert the second clamp 144 into the head tube 1224. The head tube 122b and the handlebar part are bent downward by 180° to be parallel to the first head tube 122a; then, the first clamp 142 at the connection between the first lower tube 121a and the second lower tube 121b is opened. Specifically, the user presses the palm of his hand against the rear end of the handle portion 3214, hooks the pull handle 334 with two fingers, and pulls the pull rod 333 backward, so that the pull rod 333 overcomes the elastic force of the elastic member 335, so that the retractable buckle 332 disengages from the slot 331, thereby releasing the locking state of the connection between the first element 310 and the second element 320. The torsion spring provides the restoring force for the locking cap 312 and / or the rotating shaft 311 to bounce off the connecting member 321, thereby realizing the automatic pop-up of the second element 320, releasing the connection between the first element 310 and the second element 320, and bending the front half of the frame backward by approximately 180°. By folding the frame, the front and rear wheels are folded together, which can reduce the length by about 45%; finally, at this time, the hydrogen energy bicycle is supported by three points (the ground-contacting saddle frame 114b, the driving wheel 116, and the driven wheel 125), so that the whole vehicle in the folded state is still in a standing state. The user can lift the ground-contacting saddle frame 114b by the handle 117, drag the whole vehicle or lift the whole vehicle and store it in the trunk of a family car. The folded hydrogen energy bicycle can be moved with the help of the driving wheel 116 and the driven wheel 125, and can be pushed and pulled to carry, which can greatly improve the utilization rate of the hydrogen energy bicycle itself and the user's usage rate. As shown in the attached figure Fig.11 As shown, an auxiliary support wheel 119 is also provided at the bottom of the stand tube 111, and the auxiliary support wheel 119 can be installed at the bottom of the stand tube 111 or the bottom of the pedal 118 shaft sleeve or the pedal 118 protective shell, ensuring that in the unfolded state, the auxiliary support wheel 119 is located above the lowest point of the driving wheel 116 and the driven wheel 125. In the folded state, the vehicle body tilts forward slightly, and the auxiliary support wheel 119 contacts the ground, forming a three-point support point with the driving wheel 116 and the driven wheel 125, further facilitating the movement and carrying of the hydrogen energy bicycle.

[0092] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A portable hydrogen bicycle, characterized in that: include: The rear wheel and driving part include a riser, a first down tube arranged at the front side of the riser, two rear forks located at the rear side of the riser for mounting the driving wheel, a hanger support structure mounted on the rear forks and the column, a first box fixedly mounted on the riser and / or the rear fork, which has a fuel cell built inside the first box, a second box fixedly mounted on the hanger support structure, and a hydrogen storage device fixedly mounted inside the second box in a detachable manner; The front wheel and control part include a second down tube, a head tube disposed at the other end of the second down tube, a front fork mounted at the lower part of the head tube for mounting the driven wheel, and a handlebar mounted at the upper part of the head tube; The folding part includes a first hinged part fixedly installed between the first lower tube and the second lower tube, and a first clamping part arranged on the first hinged part and maintaining or releasing the fixed connection between the first lower tube and the second lower tube.

2. The portable hydrogen bicycle according to claim 1, characterized in that: A handle is also provided between the first down tube and the vertical tube.

3. The portable hydrogen bicycle according to claim 1, characterized in that: A saddle frame is plugged into the vertical pipe, and a first pipe clamp is arranged between the saddle frame and the vertical pipe; The length of the saddle frame is greater than the length of the riser, and the difference between the height of the saddle frame and the height of the riser is equal to or approximately equal to the height from the bottom of the riser to the ground.

4. The portable hydrogen bicycle according to claim 1, characterized in that: The head tube comprises: a first head tube, a second head tube plugged into the first head tube and fixedly connected to the handlebar, and a second tube clamp arranged between the first head tube and the second head tube; and / or The head tube further comprises: a second hinged member arranged between the bottom of the second head tube and the top of the front fork, and a second clamping member arranged on the second hinged member and suitable for maintaining or releasing the fixed connection between the bottom of the head tube and the front fork.

5. The portable hydrogen bicycle according to claim 1, characterized in that: The first clamp is arranged to be attached to the connection end surface of the first lower tube and the second lower tube, so that the two first lower tubes and the second lower tube are kept in a coaxially connected state; the first clamp includes: The first element comprises a rotating shaft rotatably mounted on the first lower tube connection part, and a locking cap arranged on one side of the rotating shaft and protruding outward; the first lower tube connection part is arranged on one side of a connection end face of a rigid member thereof and protrudes outward; The second element comprises a connecting piece, one end of which is rotatably mounted on the second lower tube connecting portion and the other end of which can be engaged with the first lower tube connecting portion, and a locking groove arranged on the connecting piece and capable of engaging with the locking cap; the second lower tube connecting portion is arranged on one side of the connecting end surface of the other rigid member and protrudes outwards; The safety element comprises a clamping groove arranged on the first lower tube connecting part, and a retractable buckle arranged on the connecting piece and capable of being embedded in the clamping groove and maintaining a locked state.

6. The portable hydrogen bicycle according to claim 1, characterized in that: The lower part of the rear fork is fixedly connected to the bottom of the riser; the upper part of the rear fork is fixedly connected to the riser via a horizontally placed mounting frame.

7. The portable hydrogen bicycle according to claim 6, characterized in that: The mounting frame is bent downward to form at least two first mounting parts, the first mounting part is inserted into the first box body; and the second mounting part is fixedly mounted at the lower part of the vertical pipe and located inside the first box body; the fuel cell is fixedly mounted on the first mounting part and the second mounting part.

8. The portable hydrogen bicycle according to claim 1, characterized in that: The lower part of the rear fork is inserted into and passes through the bottom of the first box; A brushless motor is also arranged inside the first box body, a third mounting portion is arranged between the lower portions of the rear forks, and the brushless motor is fixed between the third mounting portions.

9. The portable hydrogen bicycle according to claim 1, characterized in that: A wiring channel and an air channel are arranged on the mounting frame, and a third box is arranged on the upper part of the mounting frame, and the third box is used to connect the first box and the second box.

10. The portable hydrogen bicycle according to claim 9, characterized in that: A central control device and a power storage device are also arranged inside the third box.

Images