Stacked on-board hydrogen system framework

Abstract

The utility model relates to vehicle-mounted hydrogen supply technical field especially a kind of stacked vehicle-mounted hydrogen system frame, including base, the top of the base is equipped with shock-absorbing component by bolt, the top of shock-absorbing component is equipped with support frame by bolt, the number of support frame is several, the front and back sides of support frame are all welded with positioning insert shell, the four corners of support frame inner chamber are all fixedly installed with limit seat, hydrogen storage bottle is installed between upper and lower limit seat, the bottom of top cover plate outer surface is welded with protective screen cover.Vibration makes elastic damping body and rubber damping pad occur elastic deformation, convert most high-frequency vibration energy into heat energy consumption, after attenuation, smooth force is transmitted to the support frame of hydrogen system by inner lining plate, effectively isolate the vibration and impact transmitted in vehicle driving, substantially reduce the dynamic load borne by entire hydrogen system, significantly improve the reliability and security of system.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted hydrogen supply technology, specifically a stacked vehicle-mounted hydrogen system framework. Background Technology

[0002] Hydrogen fuel cell vehicles are a type of new energy vehicle that generates electricity through a hydrogen-hydrogen chemical reaction to drive an electric motor. They can be considered as electric vehicles with their own hydrogen fuel generators. They feature zero emissions, fast refueling, and long range. The frame in the hydrogen carrying system can position and secure the hydrogen cylinder.

[0003] A search revealed that the announcement number is CN215552585U, entitled "A Frame for an Onboard Hydrogen Supply System for a Hydrogen Fuel Cell Logistics Vehicle," which includes: a powertrain mounting frame and a hydrogen storage cylinder mounting frame. The hydrogen storage cylinder mounting frame is fixedly installed on top of the powertrain mounting frame. Research and analysis revealed that although using locking components and support rods to support the top plate facilitates the placement of the hydrogen storage cylinder and eliminates the need for bolts to install the hydrogen storage cylinder mounting frame onto the powertrain mounting frame, making it more convenient to use, it still has the following drawbacks to some extent.

[0004] For example, the protection is not comprehensive enough. After the above-mentioned device is installed on the hydrogen storage cylinder, most of the hydrogen storage cylinder will still be exposed to the outside. When the vehicle is in motion, flying objects (such as stones) will directly hit the cylinder body, causing dents. At the same time, the anti-corrosion coating on the cylinder surface will peel off, seriously affecting the service life of the cylinder. Moreover, there is no shock absorption function between the frame and the car chassis. As a result, the continuous and severe vibration and impact of the chassis will be directly transmitted to the hydrogen frame and hydrogen cylinder. The continuous vibration will accelerate the fatigue and loosening of precision components such as hydrogen cylinder valves, pipe joints, and sensors, creating a risk of leakage and greatly reducing the reliability of use. In order to solve the above technical problems, we have designed a stacked vehicle hydrogen system frame. Utility Model Content

[0005] The purpose of this utility model is to provide a stacked vehicle-mounted hydrogen system frame, which has the advantages of more comprehensive protection, avoiding impacts from flying foreign objects on the cylinder body, extending service life, better shock absorption, significantly reducing the dynamic load on the entire hydrogen system, and improving the reliability and safety of the system. It solves the problems of insufficient protection, impacts from foreign objects seriously affecting the service life of hydrogen cylinders, poor shock absorption, and easy loosening of hydrogen cylinder valves and pipeline interfaces, which reduce the reliability and safety of the hydrogen system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stacked vehicle-mounted hydrogen system frame, including a base, a shock-absorbing component bolted to the top of the base, a support frame bolted to the top of the shock-absorbing component, and several support frames. Positioning inserts are welded to the front and rear sides of each support frame. Limiting seats are fixedly installed at the four corners of the inner cavity of each support frame. A hydrogen storage cylinder is installed between the upper and lower limiting seats. A top cover plate is provided on the top of the support frame. A protective mesh is welded to the bottom of the outer surface of the top cover plate. Positioning inserts are welded to the front and rear sides of the top cover plate. Reinforcing inclined plates are welded to the front and rear sides of the protective mesh. The shock-absorbing component includes an outer metal shell. An inner liner plate is slidably inserted into the top of the outer metal shell. An elastic damping body is vulcanized and fitted to the bottom of the inner liner plate. Rubber damping pads are fixedly installed on both sides of the top of the outer metal shell.

[0007] Preferably, both the reinforcing inclined plate and the positioning insert plate have mounting holes on their surfaces. A positioning bolt is inserted into the inner cavity of the mounting hole, and the inner side of the positioning bolt passes through the positioning insert and is threaded.

[0008] Preferably, a limiting plate and a limiting shell are welded to the middle part of opposite sides of the upper and lower support frames, and operation openings are provided on both the front and rear sides of the right side of the protective mesh cover.

[0009] Preferably, a limit strap and a wrapping frame are fixedly installed on the outer sides of the upper and lower limit seats respectively, and a snap fastener assembly is fixedly connected to the outer surface of the limit strap.

[0010] Preferably, a connecting top plate is welded to the top of the inner lining plate, and a connecting bottom plate is welded to the bottom of the outer metal shell. Positioning holes are provided at the four corners of the connecting top plate and the connecting bottom plate, and the top of the rubber damping pad is fixedly connected to the connecting top plate.

[0011] Preferably, positioning plates are welded to the bottom of both the front and rear sides of the base, and threaded grooves are provided on the inner side of the positioning insert cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The positioning plate is inserted from the top positioning shell, and the positioning bolt passes through the reinforcing inclined plate and is inserted into the inner cavity of the positioning shell and tightened. The protective net is installed on the outside of the support frame to protect the hydrogen storage cylinder. In this way, when external flying objects directly hit the protective net during driving, they will not cause damage to the hydrogen storage cylinder, effectively extending its service life.

[0013] Vibration causes elastic deformation of the elastic damping body and rubber damping pad, converting most of the high-frequency vibration energy into heat energy. The attenuated stable force is transmitted to the support frame of the hydrogen system through the inner liner, effectively isolating the vibration and impact transmitted during vehicle operation, significantly reducing the dynamic load on the entire hydrogen system, and significantly improving the reliability and safety of the system. Attached Figure Description

[0014] Figure 1 This is an axonometric view of the structure of this utility model; Figure 2 This is an axonometric view of the base, support frame, and hydrogen storage cylinder of this utility model; Figure 3 This is an axonometric view of the combined support frame of this utility model; Figure 4 This is an axonometric view of the support frame of this utility model; Figure 5 This is a bottom-view axonometric view of the protective netting of this utility model; Figure 6 This is a cross-sectional axonometric view of the shock-absorbing component of this utility model.

[0015] In the diagram: 1. Base; 2. Vibration damping assembly; 3. Reinforcing inclined plate; 4. Positioning plate; 5. Positioning insert plate; 6. Top cover plate; 7. Protective net cover; 8. Hydrogen storage cylinder; 9. Positioning bolt; 10. Positioning insert shell; 11. Support frame; 12. Limiting strap; 13. Limiting insert plate; 14. Winding frame; 15. Limiting seat; 16. Limiting insert shell; 17. Snap fastener assembly; 18. Mounting hole; 19. Outer metal shell; 20. Connecting top plate; 21. Elastic damping body; 22. Inner lining plate; 23. Rubber damping pad; 24. Connecting bottom plate. Detailed Implementation

[0016] Please see Figures 1-6A stacked vehicle-mounted hydrogen system frame includes a base 1. A shock-absorbing assembly 2 is bolted to the top of the base 1. A support frame 11 is bolted to the top of the shock-absorbing assembly 2. Several support frames 11 are included. Positioning inserts 10 are welded to the front and rear sides of each support frame 11. Limit seats 15 are fixedly installed at the four corners of the inner cavity of each support frame 11. The limit seats 15 are made of hydrogenated nitrile rubber. A hydrogen storage tank 8 is installed between two upper and lower limit seats 15. A top cover 6 is provided on the top of the support frame 11. A protective mesh 7 is welded to the bottom of the outer surface of the top cover 6. Supports are welded to the front and rear sides of the top cover 6. The positioning insert plate 5 and the protective net cover 7 are both welded with reinforcing inclined plates 3 on the front and rear sides. There is a gap between the surface of the reinforcing inclined plate 3 and the positioning insert plate 5 so that the positioning insert plate 5 can be inserted into the positioning insert shell 10. By setting the reinforcing inclined plate 3, the upper and lower support frames 11 can be made more secure. The shock absorption component 2 includes an outer metal shell 19. An inner liner plate 22 is slidably inserted into the top of the outer metal shell 19. An elastic damping body 21 is vulcanized and sleeved at the bottom of the inner liner plate 22. The elastic damping body 21 and the rubber damping pad 23 are both made of neoprene rubber. Rubber damping pads 23 are fixedly installed on both sides of the top of the outer metal shell 19. Please see Figure 1 and Figure 5 The surfaces of the reinforcing inclined plate 3 and the positioning insert plate 5 are both provided with mounting holes 18. By providing mounting holes 18, positioning bolts 9 can be easily installed. The positioning bolts 9 are inserted into the inner cavity of the mounting holes 18. The inner side of the positioning bolts 9 passes through the positioning insert shell 10 and is threaded. Please see Figure 3 Limiting inserts 13 and limiting shells 16 are welded to the middle of opposite sides of the upper and lower support frames 11 respectively. By setting the limiting shells 16, the limiting inserts 13 at the bottom of the upper support frame 11 can be inserted into its interior to limit it when the support frames 11 are stacked, so as to prevent the shift and tipping during the stacking process. The protective net cover 7 has operation openings on both the front and rear sides of the right side. Please see Figure 4 Limit straps 12 and winding frames 14 are fixedly installed on the outer sides of the upper and lower limit seats 15 respectively. The outer surface of the limit straps 12 is fixedly connected with snap fasteners 17, which are rotary snap fasteners. After the hydrogen storage cylinder 8 is installed, the limit straps 12 at the four corners are passed through the winding frames 14 below and pulled upwards to be positioned by the snap fasteners 17. This can further tighten the upper and lower support frames 11 and play a role in safety limiting. Please see Figure 6The top of the inner lining plate 22 is welded with a connecting top plate 20. By setting the connecting top plate 20, it can be easily fixedly connected to the support frame 11. The bottom of the outer metal shell 19 is welded with a connecting bottom plate 24. By setting the connecting bottom plate 24, it can be easily fixedly connected to the base 1. The four corners of the connecting top plate 20 and the connecting bottom plate 24 are provided with positioning holes. The top of the rubber damping pad 23 is fixedly connected to the connecting top plate 20. Please see Figure 1 and Figure 4 The base 1 has positioning plates 4 welded to the bottom of both the front and rear sides. By setting the positioning plates 4, it is easy to pass bolts through and install them on the vehicle chassis. The inner side of the positioning insert 10 has a threaded groove, which can be threadedly connected with the positioning bolt 9.

[0017] In use, the bottom support frame 11 is fixedly connected to the top of the shock absorption assembly 2 with bolts. The hydrogen storage cylinder 8 is placed on the limiting seat 15, and then the limiting seat 15 at the bottom of another support frame 11 is placed on the upper surface of the hydrogen storage cylinder 8. The stacking is performed according to the above operation. After installation, the positioning plates 5 at the four corners of the top cover plate 6 are inserted from the top positioning shell 10 and finally inserted into the bottom positioning shell 10. Then, the positioning bolts 9 are inserted through the reinforcing inclined plate 3 into the inner cavity of the positioning shell 10 and tightened with tools to fix the protective net cover 7 on the outside of the support frame 11 to protect the hydrogen storage cylinder 8 inside. In this way, when external flying objects directly hit the protective net cover 7 during driving, it will not cause damage to the hydrogen storage cylinder 8. This effectively extends the service life of the vehicle. During vehicle operation, the chassis will be subjected to continuous and severe vibrations and impacts. The vibrations are transmitted to the outer metal shell 19 of the shock absorber 2 through the base 1. The outer metal shell 19 transfers the kinetic energy to the elastic damping body 21 and the rubber damping pad 23. The elastic damping body 21 and the rubber damping pad 23 undergo elastic deformation, converting most of the high-frequency vibration energy into heat energy and dissipating it (damping effect). The attenuated stabilizing force is transmitted to the support frame 11 of the hydrogen system through the inner liner 22, effectively isolating the vibrations and impacts transmitted during vehicle operation, significantly reducing the dynamic load on the entire hydrogen system (especially the hydrogen cylinder valves and pipeline interfaces), and significantly improving the reliability and safety of the system.

[0018] In summary, this stacked vehicle-mounted hydrogen system frame, through the coordinated use of the base 1, shock-absorbing components 2, reinforcing inclined plate 3, positioning insert plate 5, top cover plate 6, protective mesh cover 7, and support frame 11, solves the problems of insufficient protection, impacts from external objects severely affecting the service life of hydrogen cylinders, poor vibration damping effect, and easy loosening of hydrogen cylinder valves and pipeline interfaces, thus reducing the reliability and safety of the hydrogen system.

Claims

1. A stacked on-board hydrogen system frame comprising a base (1), characterized in that: A shock-absorbing assembly (2) is bolted to the top of the base (1), and a support frame (11) is bolted to the top of the shock-absorbing assembly (2). There are several support frames (11). Positioning inserts (10) are welded to the front and rear sides of each support frame (11). Limit seats (15) are fixedly installed at the four corners of the inner cavity of each support frame (11). A hydrogen storage bottle (8) is installed between the upper and lower limit seats (15). A top cover plate (6) is provided on the top of the support frame (11). The bottom of the outer surface is welded with a protective mesh cover (7), and the front and rear sides of the top cover plate (6) are welded with positioning inserts (5). The front and rear sides of the protective mesh cover (7) are welded with reinforcing inclined plates (3). The shock absorption component (2) includes an outer metal shell (19). The top of the outer metal shell (19) is slidably inserted with an inner liner plate (22). The bottom of the inner liner plate (22) is vulcanized and fitted with an elastic damping body (21). Rubber damping pads (23) are fixedly installed on both sides of the top of the outer metal shell (19).

2. The stacked vehicle-mounted hydrogen system framework according to claim 1, characterized in that: The surfaces of the reinforcing inclined plate (3) and the positioning insert plate (5) are provided with mounting holes (18). The inner cavity of the mounting hole (18) is fitted with a positioning bolt (9). The inner side of the positioning bolt (9) passes through the positioning insert shell (10) and is threaded.

3. The stacked on-board hydrogen system frame of claim 1, wherein: Limiting insert plate (13) and limiting insert shell (16) are welded to the middle part of opposite sides of the upper and lower support frames (11), respectively. The protective net cover (7) has operation openings on both the front and rear sides of the right side.

4. The stacked on-board hydrogen system frame of claim 1, wherein: Limit straps (12) and wrapping frames (14) are fixedly installed on the outer sides of the upper and lower limit seats (15), respectively. A snap fastener assembly (17) is fixedly connected to the outer surface of the limit straps (12).

5. The stacked on-board hydrogen system frame of claim 1, wherein: The top of the inner lining plate (22) is welded with a connecting top plate (20), and the bottom of the outer metal shell (19) is welded with a connecting bottom plate (24). The four corners of the connecting top plate (20) and the connecting bottom plate (24) are provided with positioning holes. The top of the rubber damping pad (23) is fixedly connected to the connecting top plate (20).

6. A stacked vehicle-mounted hydrogen system frame according to claim 1, characterized in that: The base (1) has a positioning plate (4) welded to the bottom of both the front and rear sides, and the inner side of the positioning insert (10) has a threaded groove.

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