Hydrogen energy carrier hydrogen storage bottle damping structure

Abstract

The utility model discloses a hydrogen energy carrier's hydrogen storage bottle damping structure, including base plate, the base plate is fixed and is equipped with damping assembly, the damping assembly includes front end subassembly and rear end subassembly, the front end subassembly is used for with the front end of hydrogen storage bottle and carries out the limited cooperation, the rear end subassembly is used for with the rear end of hydrogen storage bottle and carries out the limited cooperation, the utility model hydrogen storage bottle damping structure is fixed with the damping assembly on the base plate, respectively with the front end and rear end of hydrogen storage bottle and carries out the limited cooperation, and the upper mounting column mainly restricts the bottle body to jump upward, and the lower mounting column can effectively limit the front and back of bottle body and produce when the sudden brake or acceleration and move, forms a plurality of contact areas in the bottle body, this makes the restraint effect of hydrogen storage bottle lateral swing more stable, effectively absorbs and disperses the impact energy, limits the displacement and vibration of hydrogen storage bottle, prevents the collision and shakes, and then improves the stability and security of hydrogen storage bottle, reduces the risk of leakage.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen storage cylinder installation technology, specifically to a shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle. Background Technology

[0002] As described in the published patent CN222015444U, "A Hydrogen Storage Cylinder Assembly for a Hydrogen Fuel Cell Tricycle," with the development of hydrogen energy technology, hydrogen fuel cell vehicles, as a clean and efficient new energy vehicle, have received widespread attention and rapid development. Due to the highly flammable and explosive nature of hydrogen, the design and materials of hydrogen storage cylinders need to meet stringent safety standards to ensure safe use under any circumstances.

[0003] In practical use, hydrogen fuel cell vehicles frequently encounter bumpy roads, which can cause impacts and vibrations to the hydrogen storage tanks, potentially leading to damage or leakage and thus safety accidents. Therefore, improving the stability and safety of hydrogen storage tanks on bumpy roads is a crucial issue in the design of hydrogen fuel cell vehicles.

[0004] Existing hydrogen storage cylinder assembly installation methods often employ simple fixed structures, lacking effective buffering and vibration reduction measures. This makes the hydrogen storage cylinder assembly prone to collisions and shaking when subjected to bumps, thereby affecting its safety.

[0005] In summary, among the relevant technologies of hydrogen energy vehicles (hydrogen fuel cell vehicles), some hydrogen storage cylinders lack effective buffering and vibration reduction measures, which affects their safety. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A shock-absorbing structure for a hydrogen storage tank of a hydrogen energy vehicle includes a base plate on which a shock-absorbing component is fixedly mounted. The shock absorption assembly includes a front end assembly and a rear end assembly. The front end assembly is used to limit the movement of the front end of the hydrogen storage cylinder, and the rear end assembly is used to limit the movement of the rear end of the hydrogen storage cylinder. The front-end assembly includes a front upper mounting post and a front lower mounting post fixedly mounted on the substrate, and the rear-end assembly includes a rear upper mounting post and a rear lower mounting post fixedly mounted on the substrate. A front upper fixing ring and a front lower fixing ring are respectively fixedly installed on the front upper and front lower mounting columns. The front upper fixing ring covers the upper end of the hydrogen storage bottle, and the front lower fixing ring covers the lower end of the hydrogen storage bottle. The upper rear fixing ring and the lower rear fixing ring are respectively fixedly installed on the upper rear and lower rear mounting columns. The upper rear fixing ring covers the upper end of the hydrogen storage bottle, and the lower rear fixing ring covers the lower end of the hydrogen storage bottle.

[0008] As a further embodiment of this utility model: the lower front and lower rear mounting columns are installed between the upper front and upper rear mounting columns.

[0009] As a further embodiment of this utility model: at least two of the front upper, front lower, rear upper, and rear lower mounting columns are symmetrically installed on both sides of the hydrogen storage cylinder.

[0010] As a further embodiment of this utility model: shock-absorbing blocks are installed at the upper ends of the front lower and rear lower mounting columns, bolt mounting holes are respectively opened at the upper ends of the front lower and rear lower mounting columns, through bolt holes are opened vertically along the upper edge of the shock-absorbing blocks, bolt locking holes are respectively opened on the front lower fixing ring and the rear lower fixing ring, and the bolt locking holes are aligned and fitted with the bolt mounting holes and bolt through holes.

[0011] As a further embodiment of this utility model: the shock absorber is arranged in a cylindrical shape in the vertical direction, and the diameter of the cylindrical shock absorber is larger than that of the front lower and rear lower mounting columns.

[0012] As a further embodiment of this utility model: the height of the upper front mounting post is greater than that of the lower front mounting post, and the height of the upper rear mounting post is greater than that of the lower rear mounting post.

[0013] As a further embodiment of this utility model: the front upper, front lower, rear upper, and rear lower mounting columns are respectively arranged in parallel between adjacent hydrogen storage cylinders.

[0014] As a further embodiment of this utility model, a baffle is fixedly installed on the upper end surface of the substrate along its periphery.

[0015] As a further embodiment of this utility model: a guide rail is fixedly mounted on the lower end face of the substrate, the guide rail is parallel to the length direction of the hydrogen storage bottle, and the guide rail includes a left guide rail fixedly mounted on the left side of the substrate and a right guide rail fixedly mounted on the right side of the substrate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model's hydrogen storage cylinder shock absorption structure uses shock absorption components fixedly mounted on a base plate, including a front end component and a rear end component, which respectively limit the front and rear ends of the hydrogen storage cylinder. The upper mounting column mainly restrains the upward jumping of the cylinder, while the lower mounting column, due to its position, can effectively limit the forward and backward movement of the cylinder during sudden braking or acceleration, forming multiple contact areas on the cylinder body. This makes the restraint effect on the lateral shaking of the hydrogen storage cylinder more stable, effectively absorbing and dispersing impact energy, limiting the displacement and vibration of the hydrogen storage cylinder, preventing collisions and shaking, thereby improving the stability and safety of the hydrogen storage cylinder and reducing the risk of leakage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is another three-dimensional view of the structure of this utility model; Figure 3 This is another three-dimensional view of the structure of this utility model; Figure 4 This is a three-dimensional view of the structure of this utility model without the shock-absorbing block; Figure 5 This is a three-dimensional view of the structure at the lower end of the substrate in this utility model; The reference numerals and names in the figure are as follows: Substrate-101, shock absorption assembly-102, front end assembly-103, rear end assembly-104, hydrogen storage tank-106, front upper mounting post-107, front lower mounting post-108, rear upper mounting post-109, rear lower mounting post-110, front upper fixing ring-111, front lower fixing ring-112, rear upper fixing ring-113, rear lower fixing ring-114, shock absorption block-115, bolt mounting hole-116, bolt through hole-117, bolt locking hole-118, baffle-119, guide rail component-120, left guide rail-121, right guide rail-122. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 A shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle includes a base plate 101, on which a shock-absorbing component 102 is fixedly mounted. The shock absorption assembly 102 includes a front end assembly 103 and a rear end assembly 104. The front end assembly 103 is used to limit the front end of the hydrogen storage cylinder 106, and the rear end assembly 104 is used to limit the rear end of the hydrogen storage cylinder 106. The front end assembly 103 includes a front upper mounting post 107 and a front lower mounting post 108 fixedly mounted on the substrate 101, and the rear end assembly 104 includes a rear upper mounting post 109 and a rear lower mounting post 110 fixedly mounted on the substrate 101. The upper front fixing ring 111 and the lower front fixing ring 112 are respectively fixedly installed on the upper front and lower front mounting posts 108. The upper front fixing ring 111 covers the upper end of the hydrogen storage bottle 106, and the lower front fixing ring 112 covers the lower end of the hydrogen storage bottle 106. The upper rear mounting post 110 is fixedly equipped with an upper rear fixing ring 113 and a lower rear fixing ring 114, respectively. The upper rear fixing ring 113 covers the upper end of the hydrogen storage bottle 106, and the lower rear fixing ring 114 covers the lower end of the hydrogen storage bottle 106. like Figure 1 and 2 As shown, the shock-absorbing structure of the hydrogen storage cylinder 106 of this utility model achieves an organic combination of flexible constraint and rigid positioning of the hydrogen storage cylinder 106. The front end component 103 and the rear end component 104 respectively limit the two ends of the hydrogen storage cylinder 106, while the upper and lower fixed rings (front upper, front lower, rear upper, and rear lower fixed rings 114) constitute multiple covering points, forming a stable "four-point enclosure" or "multi-segment clamping" structure. This can not only effectively limit the displacement of the hydrogen storage cylinder 106 in various directions during bumps (including vertical jumping, left and right swaying, and front and back movement), but also avoid the stress concentration problem caused by traditional rigid welding or single clamp fixation, and reduce the risk of cylinder material fatigue and fretting wear caused by long-term vibration. The shock absorption structure of the hydrogen storage cylinder 106 of this utility model provides a vibration energy management and dispersion path. When the vehicle is driving on a bumpy road, the impact and vibration generated will be transmitted to the shock absorption component 102 through the base plate 101. Due to the cooperation of the mounting column and the fixing ring, the vibration energy is dispersed to multiple support points and buffered and dissipated through the contact area between the fixing ring and the cylinder surface. This design attenuates the vibration amplitude and peak impact force transmitted to the hydrogen storage cylinder 106 body, thereby protecting the fragile cylinder valve and pipeline interface of the hydrogen storage cylinder 106 and improving the sealing reliability and durability of the entire hydrogen supply system. The shock-absorbing structure of the hydrogen storage cylinder 106 of this utility model uses a shock-absorbing component 102 fixedly installed on the base plate 101, including a front end component 103 and a rear end component 104, which respectively limit the front end and rear end of the hydrogen storage cylinder 106. The upper mounting column mainly restrains the upward jumping of the cylinder, while the lower mounting column, due to its position, can effectively restrict the forward and backward movement of the cylinder during sudden braking or acceleration, forming multiple contact areas on the cylinder body. This makes the restraint effect on the lateral shaking of the hydrogen storage cylinder 106 more stable, avoids excessive stress concentration in local areas of the hydrogen storage cylinder 106, effectively absorbs and disperses impact energy, limits the displacement and vibration of the hydrogen storage cylinder 106, prevents collisions and shaking, and thus improves the stability and safety of the hydrogen storage cylinder 106 and reduces the risk of leakage.

[0020] In this embodiment of the utility model, the front lower and rear lower mounting posts 110 are installed between the front upper and rear upper mounting posts 109; The front lower and rear lower mounting posts 110 are positioned between the front upper and rear upper mounting posts 109, which is equivalent to adding additional, staggered support points on the longitudinal axis of the hydrogen storage tank 106. Taking the front end assembly 103 as an example, the front upper mounting post 107 and the front lower mounting post 108, which are located slightly behind, together with the two points (front upper fixing ring 111 and front lower fixing ring 112) that contact the body of the hydrogen storage tank 106 and the base plate 101, form a virtual triangle. This triangular structure can effectively resist the torsional torque generated when the vehicle is bumpy, turning or tilting, and prevent the hydrogen storage tank 106 from rotating or swinging around its axis. The upper mounting post mainly restrains the upward jumping of the cylinder, while the lower mounting post, due to its position, can more effectively limit the forward and backward lurching of the cylinder during sudden braking or acceleration; the four fixing rings (front upper, front lower, rear upper, and rear lower) form four contact areas on the cylinder body, which upgrades the restraint on the lateral swaying of the hydrogen storage cylinder 106 from "two points" to "four points", making the restraint effect more stable; dispersing the fixing points along the cylinder axis means that when an impact force comes, the restraint force will be distributed over a larger area of ​​the cylinder body, avoiding excessive stress concentration in a local area of ​​the hydrogen storage cylinder 106; The two ends of the hydrogen storage cylinder 106 (especially the end where the cylinder valve is installed) are usually the parts that need to be protected structurally. The upper fixing ring is set near the two ends and cooperates with the lower fixing ring in the middle area to achieve the posture of "key locking at both ends and auxiliary support in the middle" for the hydrogen storage cylinder 106. The cylinder valve and pipeline interface are usually located at the ends of the hydrogen storage cylinder 106. By firmly restraining it at the upper end, and setting the restraint points at the two ends as far away from the center of gravity as possible, just like holding the two ends when carrying a carrying pole is the most stable, the pitching or swaying movement of the hydrogen storage cylinder 106 as a whole can be most effectively suppressed.

[0021] In this embodiment of the present invention, at least two of the front upper, front lower, rear upper, and rear lower mounting columns 110 are symmetrically installed on both sides of the hydrogen storage cylinder 106. like Figure 2 As shown, by symmetrically setting at least two front-upper, front-lower, rear-upper, and rear-lower mounting columns 110 on both sides of the hydrogen storage cylinder 106, all fixing rings can apply balanced constraint forces simultaneously from both sides of the hydrogen storage cylinder 106, thereby upgrading the original single-point or single-side support into a stable frame surrounding the cylinder body. When the vehicle is bumpy, the symmetrical mounting columns can share and offset the impact and vibration from different directions, effectively suppressing the lateral swaying and torsional tendency of the hydrogen storage cylinder 106 and avoiding stress concentration; it enhances the overall rigidity and stability of the hydrogen storage cylinder 106 and greatly reduces the risk of structural fatigue, loosening of connectors or wear of cylinder caused by long-term vibration.

[0022] In this embodiment of the utility model, the upper ends of the front lower and rear lower mounting columns 110 are provided with shock-absorbing blocks 115, the upper ends of the front lower and rear lower mounting columns 110 are respectively provided with bolt mounting holes 116, the upper edge of the shock-absorbing block 115 is provided with a through bolt hole 117, the front lower fixing ring 112 and the rear lower fixing ring 114 are respectively provided with bolt locking holes 118, and the bolt locking holes 118 are aligned and engaged with the bolt mounting holes 116 and the bolt through holes 117. like Figure 3 and 4 As shown, by setting damping blocks 115 at the upper end of the front lower and rear lower mounting columns 110, and using the bolt through holes 117 that penetrate vertically through the damping blocks 115 to align and cooperate with the bolt mounting holes 116 on the mounting column and the bolt locking holes 118 on the fixing ring, the bolts are used to lock and fix the column. This forms a flexible buffer layer between the mounting column and the fixing ring. When the hydrogen storage tank 106 experiences a downward or swaying impact due to bumps, the force will first be transmitted to the damping blocks 115 through the fixing ring. The damping blocks 115 effectively absorb and dissipate this impact energy through their own elastic deformation, thereby significantly attenuating the vibration transmitted to the rigid mounting column and the base plate 101. The bottom support point of the hydrogen storage cylinder 106 has been upgraded from a rigid connection to an elastic connection. This not only buffers the vertical impact and further suppresses vibration transmission to protect the body of the hydrogen storage cylinder 106 and key interfaces, but also effectively avoids wear and fatigue damage to the rigid contact point caused by long-term micro-vibration through the flexible connection.

[0023] In this embodiment of the utility model, the shock absorber 115 is cylindrical in the vertical direction, and the diameter of the cylindrical shock absorber 115 is larger than that of the front lower and rear lower mounting columns 110. like Figure 3As shown, the shock absorber 115 is cylindrical in the vertical direction, and its diameter is larger than the diameter of the front lower and rear lower mounting columns 110 on which it is installed; this significantly increases the contact pressure bearing area between the shock absorber 115 and the upper fixing ring, so that the impact force from the hydrogen storage tank 106 can be evenly distributed to the entire upper surface of the shock absorber 115, thereby effectively reducing the local pressure. At the same time, the larger cylindrical shape provides more material volume and space for elastic deformation, so that it can undergo larger and softer elastic deformation under pressure to fully absorb vibration energy. By reducing local pressure stress, the material fatigue and permanent deformation of the damping block 115 are delayed, improving the durability and reliability of the buffer element. On the other hand, through force dispersion and more sufficient deformation space, the buffering of the entire damping system against high-frequency vibration and instantaneous impact is further enhanced.

[0024] In this embodiment of the utility model, the height of the front upper mounting post 107 is greater than that of the front lower mounting post 108, and the height of the rear upper mounting post 109 is greater than that of the rear lower mounting post 110. like Figure 4 As shown, by setting the heights of the front upper mounting post 107 and the rear upper mounting post 109 to be greater than those of the front lower mounting post 108 and the rear lower mounting post 110, respectively, after the hydrogen storage cylinder 106 is installed and fixed, the upper and lower fixing rings are at different heights in the vertical direction, thus forming a staggered spatial constraint on the body of the hydrogen storage cylinder 106. When the hydrogen storage cylinder 106 attempts to pitch or twist laterally due to vehicle bumps, the fixing rings at different heights can work together more effectively to form a stable couple that resists the torsional moment, suppressing the irregular swaying of the cylinder body. This enhances the ability of the shock absorption structure to constrain the complex motion of the hydrogen storage cylinder 106 and effectively prevents the hydrogen storage cylinder 106 from becoming unstable in three-dimensional space.

[0025] In this embodiment of the utility model, the front upper, front lower, rear upper, and rear lower mounting columns 110 are respectively arranged in parallel between adjacent hydrogen storage cylinders 106; like Figure 2 and 3As shown, by arranging the front upper, front lower, rear upper, and rear lower mounting columns 110 in parallel between adjacent hydrogen storage cylinders 106, a unified and regular modular installation layout is established for multiple hydrogen storage cylinder groups 106. The parallel mounting column array ensures that the fixing rings of each hydrogen storage cylinder 106 are on the same guiding and force-bearing plane, so that the vibration and impact forces from different hydrogen storage cylinders 106 can be evenly transmitted to the common base plate 101 through parallel paths. This avoids stress interference and local concentration caused by incorrect installation angles, improves the structural integrity and space utilization efficiency of multi-cylinder group installation, facilitates rapid batch installation and maintenance, and ensures that the shock absorption components 102 of each hydrogen storage cylinder 106 can work in a coordinated manner when subjected to complex loads.

[0026] In this embodiment of the present invention, a baffle 119 is fixedly installed on the upper end surface of the substrate 101 along the periphery; like Figure 4 As shown, by fixing a baffle 119 along its periphery on the upper surface of the substrate 101, a protective boundary is constructed around the hydrogen storage cylinder 106 and the shock absorption assembly 102. The baffle 119 can effectively block and isolate external foreign objects (such as flying stones, detached parts, or tools that accidentally roll off during maintenance), thereby reducing the risk of cylinder scratches, damage to the shock absorption assembly 102, or loosening of installation connections caused by accidental collisions.

[0027] In this embodiment of the present invention, a guide rail 120 is fixedly mounted on the lower end face of the substrate 101. The guide rail 120 is parallel to the length direction of the hydrogen storage bottle 106. The guide rail 120 includes a left guide rail 121 fixedly mounted on the left side of the substrate 101 and a right guide rail 122 fixedly mounted on the right side of the substrate 101. like Figure 5 As shown, by fixing the left guide rail 121 and the right guide rail 122, which are parallel to the length direction of the hydrogen storage cylinder 106, on the lower end face of the base plate 101, the entire hydrogen storage cylinder 106 assembly (including the base plate 101, the shock absorption assembly 102, and the hydrogen storage cylinder 106) can be smoothly slid into the preset installation position on the vehicle chassis as a whole module. The quick positioning and firm fixation are achieved through the cooperation of the guide rail or the base plate 101 with the chassis locking mechanism, which simplifies the assembly and subsequent maintenance disassembly process of the hydrogen storage cylinder 106 assembly on the vehicle, and improves production efficiency and maintenance convenience.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shock-absorbing structure for a hydrogen storage cylinder of a hydrogen-powered vehicle, characterized in that, Includes a substrate (101), on which a shock-absorbing component (102) is fixedly mounted; The shock absorption assembly (102) includes a front end assembly (103) and a rear end assembly (104). The front end assembly (103) is used to limit the front end of the hydrogen storage cylinder (106), and the rear end assembly (104) is used to limit the rear end of the hydrogen storage cylinder (106). The front end assembly (103) includes a front upper mounting post (107) and a front lower mounting post (108) fixedly mounted on the substrate (101), and the rear end assembly (104) includes a rear upper mounting post (109) and a rear lower mounting post (110) fixedly mounted on the substrate (101). The front upper and front lower mounting posts (108) are respectively fixedly equipped with a front upper fixing ring (111) and a front lower fixing ring (112). The front upper fixing ring (111) covers the upper end of the hydrogen storage bottle (106), and the front lower fixing ring (112) covers the lower end of the hydrogen storage bottle (106). The upper rear fixing ring (113) and the lower rear fixing ring (114) are respectively fixedly installed on the upper rear and lower rear mounting columns (110). The upper rear fixing ring (113) covers the upper end of the hydrogen storage bottle (106), and the lower rear fixing ring (114) covers the lower end of the hydrogen storage bottle (106).

2. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 1, characterized in that, The lower front and lower rear mounting posts (110) are installed between the upper front and upper rear mounting posts (109).

3. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 1, characterized in that, The front upper, front lower, rear upper, and rear lower mounting columns (110) are symmetrically installed on both sides of the hydrogen storage cylinder (106) with at least two of them.

4. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 1, characterized in that, The upper ends of the front lower and rear lower mounting columns (110) are equipped with shock-absorbing blocks (115). The upper ends of the front lower and rear lower mounting columns (110) are respectively provided with bolt mounting holes (116). The shock-absorbing blocks (115) are provided with through bolt holes (117) along the vertical direction. The front lower fixing ring (112) and the rear lower fixing ring (114) are respectively provided with bolt locking holes (118). The bolt locking holes (118) are aligned and matched with the bolt mounting holes (116) and the bolt through holes (117).

5. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 4, characterized in that, The shock absorber (115) is cylindrical in the vertical direction, and the diameter of the cylindrical shock absorber (115) is larger than that of the front lower and rear lower mounting columns (110).

6. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 1, characterized in that, The height of the front upper mounting post (107) is greater than that of the front lower mounting post (108), and the height of the rear upper mounting post (109) is greater than that of the rear lower mounting post (110).

7. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 1, characterized in that, Between adjacent hydrogen storage cylinders (106), the front upper, front lower, rear upper, and rear lower mounting columns (110) are respectively arranged in parallel.

8. A shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to any one of claims 1-7, characterized in that, A baffle (119) is fixedly installed on the upper surface of the substrate (101) along its periphery.

9. The shock-absorbing structure for a hydrogen storage cylinder of a hydrogen energy vehicle according to claim 8, characterized in that, The lower end face of the substrate (101) is fixedly equipped with a guide rail (120). The guide rail (120) is parallel to the length direction of the hydrogen storage bottle (106). The guide rail (120) includes a left guide rail (121) fixedly installed on the left side of the substrate (101) and a right guide rail (122) fixedly installed on the right side of the substrate (101).

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