Onboard hydrogen system strap, onboard hydrogen system and vehicle

Abstract

The utility model discloses a binding strap for a vehicle-mounted hydrogen system, a vehicle-mounted hydrogen system and a vehicle, and relates to the field of hydrogen storage technology. The binding strap forms a circular opening to cover and fix a gas cylinder, and an adjustment mechanism for adjusting the size of the circular opening is provided on the binding strap; the binding strap includes at least two binding segments distributed along the circumferential direction, and the adjustment mechanism connects two adjacent binding segments; the adjustment mechanism is an elastic adjustment mechanism, and the adjustment mechanism includes an elastic member. According to the binding strap of the embodiment of the utility model, an elastic adjustment mechanism is introduced as the adjustment mechanism of the binding strap, and the elastic adjustment mechanism includes an elastic member, which can be adaptively adjusted to a certain extent according to the state of the gas cylinder, so as to ensure that the binding strap can tightly and evenly wrap and fix the gas cylinder. This binding strap has good fixing effect, simple structure, easy assembly, and small space occupation, and has the advantage of being lightweight.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, and in particular to a binding strap of a vehicle-mounted hydrogen system, a vehicle-mounted hydrogen system and a vehicle. Background Art

[0002] At present, most of the hydrogen storage cylinders commonly found in trucks on the market are placed above the vehicle frame or at the bottom of the cargo box. When the hydrogen storage cylinders are installed on both sides of the frame beam, they are suspended using an independent structure, connected and fastened with the bracket clamps through bolt assemblies, and then installed on the frame as a whole. Finally, the frame as a whole is installed on the vehicle support beam mounting bracket using bolt assemblies. This installation structure is relatively complex, the assembly operation is difficult, and the installation structure occupies a large space and is difficult to disassemble as a whole.

[0003] Therefore, there is room for improvement in the mounting structure. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the utility model aims to provide a strap for a vehicle-mounted hydrogen system, which has good fixing effect, simple structure, easy assembly, small space occupation, and lightweight advantages.

[0005] The second aspect of the present invention aims to provide a vehicle-mounted hydrogen system.

[0006] A third aspect of the present invention aims to provide a vehicle.

[0007] According to the strap of the first aspect of the utility model, the strap forms a circular opening to cover and fix the gas cylinder, and the strap is provided with an adjustment mechanism for adjusting the size of the circular opening; the strap includes at least two binding segments distributed along the circumferential direction, and the adjustment mechanism connects two adjacent binding segments; the adjustment mechanism is an elastic adjustment mechanism, and the adjustment mechanism includes an elastic member.

[0008] According to the strap of the first embodiment of the utility model, the flexibility and safety of fixing the gas cylinder are improved by introducing an elastic adjustment mechanism as the adjustment mechanism of the strap. The elastic adjustment mechanism includes elastic parts, which can be adaptively adjusted to a certain extent according to the state of the gas cylinder, so as to ensure that the strap can tightly and evenly wrap and fix the gas cylinder. This elastic adjustment method not only improves the connection stability, but also reduces the difficulty of assembly, which is conducive to improving the assembly efficiency. At the same time, the strap has a simple structure and occupies a small space, which is conducive to the lightweight of the vehicle-mounted hydrogen system.

[0009] According to some embodiments of the binding straps of the utility model, the adjustment mechanism includes: an adjustment rod and an adjustment hole, the adjustment rod is rotatably connected to one of the two adjacent binding segments; the adjustment hole is provided on the other binding segment, and the adjustment rod is engaged at the adjustment hole; one end of the elastic member is connected to the adjustment rod, and the other end is connected to the binding segment provided with the adjustment hole.

[0010] In some optional embodiments, the adjustment mechanism also includes: an adjustment nut, the adjustment nut is threadedly connected to the adjustment rod, the elastic member is a heavy spring and is coated on the adjustment rod, one end of the elastic member abuts against the adjustment nut, and the other end abuts against the binding section provided with the adjustment hole.

[0011] In some optional embodiments, the adjustment hole is a long hole.

[0012] According to the straps of some embodiments of the utility model, the straps include: an upper strap and a lower strap, the inner end of the lower strap is used to fix the connection to the longitudinal beam of the vehicle body, the inner end of the lower strap is rotatably connected to the inner end of the upper strap, and the adjustment mechanism is provided between the outer end of the upper strap and the outer end of the lower strap.

[0013] In some optional embodiments, an extension fixing plate is provided on the binding strap, the extension fixing plate is spaced apart from the adjustment mechanism, and the extension fixing plate is extended along the axial direction of the binding strap for connecting the skin side panels of the protective skin.

[0014] According to some embodiments of the utility model, the straps further include: a fixed reinforcement portion, which is arranged on the outer periphery of the strap to connect to the longitudinal beam of the vehicle body; and a buffer protection plate provided on the inner bottom of the strap, which is an integrally formed plate and is used to fit closely to the gas cylinder.

[0015] According to the second aspect of the embodiment of the utility model, the on-vehicle hydrogen system includes: a gas cylinder and a strap, the strap is the strap of the on-vehicle hydrogen system described in the first aspect of the embodiment of the present application, and the strap outer cover fixes the gas cylinder.

[0016] By setting straps, the safety and flexibility of the on-board hydrogen system can be improved.

[0017] Specifically, the shell wall of the gas cylinder includes a pressure-resistant layer and a carbon fiber composite layer wrapped outside the pressure-resistant layer, and the gas cylinder is a regulating bottle with adjustable diameter as the internal pressure changes. According to the third aspect of the utility model, the vehicle includes: a vehicle body longitudinal beam and a vehicle-mounted hydrogen system.

[0018] The on-board hydrogen system is the on-board hydrogen system described in the second embodiment of the present application, and the on-board hydrogen system is installed on one side of the vehicle body longitudinal beam.

[0019] By setting up a safe and reliable on-board hydrogen system, the overall performance of the vehicle and its adaptability to gas cylinders can be improved.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the connection between the protective structure and the gas storage cylinder in some embodiments of the utility model;

[0023] Figure 2 A schematic diagram of the structure of the binding straps of some embodiments of the utility model;

[0024] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 Another structural schematic diagram of a binding strap according to some embodiments of the present utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the reinforcing ribs of some embodiments of the utility model;

[0027] Figure 6 It is a schematic diagram of the structure of the pipeline installation bracket of some embodiments of the utility model;

[0028] Figure 7 It is a schematic diagram of the structure of the protective skin of some embodiments of the utility model;

[0029] Figure 8 Schematic diagram of the structure of the vehicle-mounted hydrogen system of some embodiments of the utility model.

[0030] Reference numerals:

[0031] On-board hydrogen system 100,

[0032] Protective structure 10, protective skin 1, skin bottom plate 11, skin side plate 12, adjustment port 13,

[0033] The strap 2, the strap section 20, the upper strap 21, the inner end 21a of the upper strap, the outer end 21b of the upper strap, the through hole 211, the connecting shaft 212, the connecting hole 2120, the lower strap 22, the inner end 22a of the lower strap, the outer end 22b of the lower strap,

[0034] Adjustment mechanism 23, elastic member 231, adjustment rod 232, connecting nut 2321, adjustment hole 233, adjustment nut 234,

[0035] Skin fixed position 24,

[0036] Extension fixing plate 25,

[0037] Fixed reinforcement part 3, buffer protection plate 4, flange 41,

[0038] Pipe mounting bracket 5, reinforcement rib 6,

[0039] Gas cylinder 200. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present utility model, it should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Reference below Figure 1-Figure 7 The strap 2 of the vehicle-mounted hydrogen system 100 according to the embodiment of the present invention is described.

[0044] It is worth noting that the strap 2 mentioned in the present application is applicable to the vehicle-mounted hydrogen system 100, and can provide important protection for the safe use of vehicle-mounted hydrogen energy, thereby reducing potential safety risks.

[0045] like Figure 1-Figure 2 As shown, according to the embodiment of the first aspect of the present utility model, the strap 2 of the vehicle-mounted hydrogen system 100 is formed into a circular opening to cover and fix the gas cylinder 200, and the strap 2 is provided with an adjustment mechanism 23 for adjusting the size of the circular opening. The adjustment mechanism 23 enables the strap 2 to flexibly adapt to gas cylinders 200 of different sizes and shapes, ensuring that they can be firmly fixed.

[0046] In actual use, when the gas cylinder 200 needs to be installed or replaced, the user can adjust the strap 2 to a large diameter circular opening through the adjustment mechanism 23. This can provide sufficient operating space for installing or replacing the gas cylinder 200, making the whole process more convenient and efficient.

[0047] Once the gas cylinder 200 is installed in place, the user can reduce the size of the circular opening through the adjustment mechanism 23 to adapt to the size of the gas cylinder 200. In this process, the strap 2 will fit tightly to the surface of the gas cylinder 200, forming a firm bond to the gas cylinder 200. This can not only prevent the gas cylinder 200 from shaking or shifting during driving, but also avoid collision between the gas cylinder 200 and the vehicle body, thereby ensuring the integrity and safety of the gas cylinder 200.

[0048] Reference Figure 4 The binding belt 2 includes at least two binding segments 20 distributed along the annular direction, and the adjustment mechanism 23 connects two adjacent binding segments 20. In this way, the relative position between the binding segments 20 can be changed by the adjustment mechanism 23, thereby adjusting the size of the circular opening.

[0049] like Figure 1 , Figure 3 As shown, the adjustment mechanism 23 is an elastic adjustment mechanism, and the adjustment mechanism 23 includes an elastic member 231 .

[0050] First, the elastic member 231 has a certain pre-tightening force when the binding belt 2 is not fully tightened. This pre-tightening force can help the binding belt 2 to better fit the peripheral wall of the gas storage cylinder 200, ensuring a preliminary fixing effect.

[0051] Secondly, the elastic member 231 can ensure that the strap 2 applies a constant pressure to the gas cylinder 200 in a tightened state. This constant pressure helps to maintain the stability of the gas cylinder 200 and prevents it from loosening or shifting during use.

[0052] In addition, in some embodiments, the binding strap 2 is used to bind a gas cylinder 200 with a self-adjustable diameter. Such a gas cylinder 200 will expand or contract as the internal pressure changes during use. Therefore, the binding strap 2 of the present application can absorb the expansion of the gas cylinder 200. As the gas in the gas cylinder 200 is slowly consumed, the binding strap 2 automatically reduces the size of the circular opening through the adjustment mechanism 23 to always bind the gas cylinder 200 tightly.

[0053] Meanwhile, during the driving of the vehicle, the gas cylinder 200 may be subjected to vibrations. The elastic member 231 can absorb the energy of the vibrations, reducing their influence on the strap 2 and the gas cylinder 200, thereby protecting the safety of the gas cylinder 200.

[0054] In addition, an elastic adjustment mechanism is provided, and the elastic member 231 can alleviate the stress concentration of the strap 2 during the tightening process to a certain extent, thereby increasing the service life of the strap 2.

[0055] According to the strap 2 of the embodiment of the utility model, the convenience of fixing the gas cylinder is improved by using an elastic adjustment mechanism as the adjustment mechanism of the strap. The elastic adjustment mechanism includes elastic members 231, which can be adaptively adjusted to a certain extent according to the state of the gas cylinder, so as to ensure that the strap can tightly and evenly wrap and fix the gas cylinder. This elastic adjustment method is not only convenient for connection, but also can reduce the difficulty of assembly, which is conducive to improving assembly efficiency. At the same time, the protective structure has a simple structure and occupies a small space, which is conducive to the lightweight of the vehicle-mounted hydrogen system.

[0056] In some optional embodiments, the binding section 20 is made of a stainless steel bending molded part, because the stainless steel bending molded part has good ductility and good performance.

[0057] According to some embodiments of the present invention, Figure 1 , Figure 3 As shown, the adjustment mechanism 23 includes an adjustment rod 232 and an adjustment hole 233 .

[0058] The adjusting rod 232 is rotatably connected to one of the two adjacent binding segments 20. The adjusting hole 233 is provided on the other binding segment 20, and the adjusting rod 232 is matched at the adjusting hole 233. One end of the elastic member 231 is connected to the adjusting rod 232, and the other end is connected to the binding segment 20 provided with the adjusting hole 233.

[0059] The adjusting rod 232 is used as an adjusting tool. By rotating the adjusting rod 232 , the relative position between two adjacent binding segments 20 can be changed, thereby adjusting the size of the circular opening of the binding belt 2 .

[0060] The shape and size of the adjustment hole 233 match the adjustment rod 232 to ensure that the adjustment rod 232 can be smoothly inserted and rotated in the adjustment hole 233. The adjustment hole 233 provides a motion track for the adjustment rod 232, and the relative position change between the binding segments 20 can be controlled by the rotation of the adjustment rod 232 in the adjustment hole 233.

[0061] In some embodiments, Figure 3 As shown, a through hole 211 is provided at the end of the binding section 20 corresponding to the adjusting rod 232. A connecting shaft 212 is provided in the through hole 211, and the connecting shaft 212 crosses the through hole 211, and a connecting hole 2120 adapted to the adjusting rod 232 is provided in the middle part of the connecting shaft 212. The adjusting rod 232 is passed through the connecting hole 2120 and is arranged on the connecting shaft 212. A connecting nut 2321 is provided on the adjusting rod 232, and the connecting nut 2321 is located on the side of the adjusting rod 232 away from the elastic member 231. This structure can realize the rotational connection between the adjusting rod 232 and the binding section 20, and at the same time, by tightening or loosening the connecting nut 2321, the connection tightness between the adjusting rod 232 and the corresponding binding section 20 can be adjusted.

[0062] The elastic member 231 is used to provide elastic force. When the binding strap 2 is tightened, the elastic force provided by the elastic member 231 provides a continuous and stable force between the two binding segments 20. This force not only maintains a stable connection between the two binding segments 20, but also ensures a tight fit between the binding strap 2 and the gas cylinder 200.

[0063] Specifically, when the gas cylinder 200 is vibrated, due to the effect of external force, a slight looseness may occur between the binding strap 2 and the gas cylinder 200. The elastic member 231 can quickly respond to this looseness. The elastic force released by it will act on the binding strap 2, thereby forming an inward pulling force. This pulling force can quickly reduce the distance between the two binding sections 20, and make the binding strap 2 fit tightly to the gas cylinder 200 again. Therefore, the elastic member 231 can effectively resist the slight displacement caused by vibration, ensuring that the gas cylinder 200 can remain stable during long-term use.

[0064] In addition, the elastic member 231 can also perform a certain degree of adaptive adjustment according to the actual force applied to the gas cylinder 200. If the looseness caused by vibration is small, the elastic force released by the elastic member 231 is also correspondingly small; if the looseness is large, the elastic member 231 will release a larger elastic force to compensate. This adaptive adjustment capability improves the reliability of the strap 2 in protecting the stability of the gas cylinder 200.

[0065] Optionally, the elastic member 231 is a heavy cylindrical compression spring member.

[0066] In some optional embodiments, such as Figure 3As shown, the adjustment mechanism 23 also includes: an adjustment nut 234. The adjustment nut 234 is threadedly connected to the adjustment rod 232, and the elastic member 231 is a heavy spring and covers the adjustment rod 232. One end of the elastic member 231 abuts against the adjustment nut 234, and the other end abuts against the binding section 20 provided with the adjustment hole 233.

[0067] Specifically, when the adjusting nut 234 is rotated to approach another binding segment 20, the space provided by the adjusting rod 232 for the heavy spring is gradually shortened. Since the heavy spring is placed in a compressed state, it will be subjected to the reverse compression force from the adjusting nut 234 and thus compressed. This compression makes the relative positions between the two binding segments 20 close to each other, and the size of the circular mouth becomes shorter, thereby achieving the fastening of the gas cylinder 200. In this process, the heavy spring is compressed and stores elastic potential energy. This elastic potential energy is the energy accumulated by the adjusting mechanism 23 to resist external forces. Once an external force attempts to loosen the binding strap 2, the heavy spring will release the stored elastic potential energy, helping the binding strap 2 to return to the fastened state, thereby ensuring the stability and safety of the gas cylinder 200.

[0068] Due to the threaded connection between the adjusting nut 234 and the adjusting rod 232, the operator can precisely control the degree of tightening of the strap 2 by simply rotating the adjusting nut 234. This adjustment method is not only convenient and easy to use, but also can provide a sufficient adjustment range to accommodate gas cylinders 200 of different sizes and shapes.

[0069] In some optional embodiments, such as Figure 3 As shown, the adjusting hole 233 is a long hole. This arrangement is to adapt to the annular shortening phenomenon that occurs when the binding belt 2 is adjusted in the process of adjusting the tightness.

[0070] Since the strap 2 is usually wrapped around an object such as a gas cylinder 200, when the tightness of the strap 2 needs to be adjusted, the strap 2 will shorten or lengthen along its circumferential direction. At this time, the adjustment rod 232 needs to be able to move along the radial direction of the strap 2. Therefore, the adjustment hole 233 is designed to be a long hole shape to adapt to the position change of the adjustment rod 232 and avoid interference.

[0071] The length of the long hole can be set according to the range of shortening or lengthening of the strap 2 to ensure that the adjustment rod 232 can move smoothly during the adjustment process, thereby ensuring the use of the strap 2.

[0072] In some optional embodiments, a lubricating film layer is provided on the inner wall of the adjusting hole 233. The lubricating film forms a separation layer on the inner wall of the adjusting hole 233, reducing the friction resistance when the adjusting rod 232 slides in the adjusting hole 233, thereby improving the smoothness and efficiency of the adjustment.

[0073] In addition, the lubricating film layer also has the function of preventing wear and extending the service life. No matter the adjusting rod 232 slides in the adjusting hole 233 or the adjusting rod 232 collides in the adjusting hole 233 due to external force, when the two are in direct contact, wear is likely to occur. At this time, the lubricating film layer can reduce wear and protect the surface of the adjusting rod 232 and the inner wall of the long hole from being damaged, thereby extending the service life of the entire adjusting mechanism 23.

[0074] Optionally, the lubricating film layer can be a metal layer, a non-metal layer, a polymer layer, etc. For example, the metal layer includes a molybdenum disulfide material layer; the non-metal layer includes a polytetrafluoroethylene PTFE-based composite material layer; the polymer layer includes an epoxy resin layer, etc. The lubricating film layers of these materials can operate at high temperatures and high loads and are not prone to aging.

[0075] According to some embodiments of the present application, Figure 2 , Figure 4 As shown, the strap 2 includes an upper strap 21 and a lower strap 22, the inner end 22a of the lower strap 22 is used to be fixedly connected to the longitudinal beam of the vehicle body, the inner end 22a of the lower strap 22 is rotatably connected to the inner end 21a of the upper strap 21, and an adjustment mechanism 23 is provided between the outer end 21b of the upper strap 21 and the outer end 22b of the lower strap 22. In this way, the strap 2 can be connected to the vehicle, providing a basis for arranging the gas cylinder 200 on the vehicle.

[0076] like Figure 2 , Figure 4 As shown, the inner end 22a of the lower strap 22 is rotatably connected to the inner end 21a of the upper strap 21, and this rotatable connection allows a certain flexibility between the upper strap 21 and the lower strap 22 to adapt to gas cylinders 200 of different shapes and sizes. When a larger gas cylinder 200 needs to be fixed, the opening and closing angle between the upper strap 21 and the lower strap 22 will naturally increase to adapt to the larger volume of the gas cylinder 200. This increased opening and closing angle can ensure that the strap 2 is tightly attached to the surface of the gas cylinder 200, providing sufficient fastening force, and ensuring the stability and safety of the gas cylinder 200.

[0077] On the contrary, when facing a smaller gas cylinder 200, the opening and closing angle between the upper strap 21 and the lower strap 22 will be reduced accordingly. This flexible change enables the strap 2 to tightly wrap the small gas cylinder 200, and also achieve a stable fastening effect.

[0078] In addition to being adaptable to gas cylinders 200 of different sizes, the rotating connection can also improve the convenience of installation and removal of the strap 2. By utilizing the relative rotation between the upper strap 21 and the lower strap 22, the operator can easily fix the strap 2 on the gas cylinder 200, or quickly remove the strap 2 as needed, which can not only improve work efficiency, but also reduce operational complexity, making the use of the strap 2 easier and more efficient.

[0079] like Figure 7 As shown, according to some embodiments of the present application, the protective structure 10 provided with the strap 2 of the present application further includes: a protective skin 1. The protective skin 1 is provided with an adjustment opening 13 facing the adjustment mechanism 23. At least two skin fixing positions 24 are provided on the strap 2 along the circumferential direction.

[0080] The main function of the protective skin 1 is to provide additional protection for the gas cylinder 200, especially for the parts of the cylinder body that are far away from the longitudinal beams of the vehicle body and are easily subject to collision.

[0081] The protective skin 1 is connected to the skin fixing position 24 by means of fasteners.

[0082] Alternatively, if Figure 7 As shown, the protective skin 1 includes: a skin side panel 12 and a skin bottom panel 11. The skin bottom panel 11 is located below the gas cylinder 200 in the vertical direction, and the skin side panel 12 is located on the side of the gas cylinder 200 away from the longitudinal beam of the vehicle body. The skin fixing position 24 corresponds to one of the skin side panel 12 and the skin bottom panel 11. This arrangement can ensure the connection effect between the protective skin 1 and the strap 2, and the protective skin 1 will not be loosened or fallen off due to vibration or collision of the vehicle.

[0083] like Figure 7 As shown, the adjustment opening 13 provided on the protective skin 1 exposes the adjustment mechanism 23 toward the operator, so that the operator can conveniently operate the adjustment mechanism 23 when it is necessary to tighten or loosen the gas cylinder 200 .

[0084] In some optional embodiments, such as Figure 1-Figure 2 As shown, the strap 2 is provided with an extended fixing plate 25 at one side of the skin fixing position 24, the extended fixing plate 25 is extended along the axial direction of the strap 2, and the extended fixing plate 25 is spaced apart from the adjustment mechanism 23, and is used to connect the skin side plate 12 of the protective skin 1. The extended fixing plate 25 can increase the connection area between the skin side plate 12 and the strap 2, and ensure that the skin side plate 12 protects the gas cylinder 200.

[0085] like Figure 2 , Figure 4As shown, the protective structure 10 according to some embodiments of the present application further includes: a fixed reinforcement part 3, which is arranged on the periphery of the strap 2 to connect the vehicle body longitudinal beam. The fixed reinforcement part 3 is used to improve the adaptability and connection strength of the protective structure 10 and the vehicle body longitudinal beam.

[0086] Optionally, the fixed reinforcement portion 3 is provided with a connection interface matching the longitudinal beam of the vehicle body.

[0087] like Figure 2 , Figure 4 As shown, a buffer protection plate 4 is provided at the inner bottom of the binding strap 2. The buffer protection plate 4 is an integrally formed plate and is used to closely adhere to the gas cylinder 200. The buffer protection plate 4 is adapted to the outer peripheral surface of the gas cylinder 200. This structure enables the buffer protection plate 4 to closely adhere to the surface of the gas cylinder 200, thereby providing better support and protection. The buffer protection plate 4 can increase the friction with the gas cylinder 200 and improve the firmness of the connection.

[0088] The connection effect between the strap 2 and the gas cylinder 200 is improved to a certain extent by the close fit between the buffer protection plate 4 and the gas cylinder 200. At the same time, the buffer protection plate 4 can also resist the impact and vibration from the outside to a certain extent. When the vehicle is driving on a bumpy road or encountering emergency braking, the buffer protection plate 4 can effectively disperse and reduce the impact force on the gas cylinder 200, protecting the gas cylinder 200 from damage.

[0089] In such Figure 4 In the embodiment shown, the buffer protection plate 4 is provided with flanges 41 on both sides along the width, and the flanges 41 on both sides extend toward the side away from the gas cylinder 200 and then bend toward each other. The cross section of the buffer protection plate 4 forms a structure similar to a "C" shape, which can increase the contact between the buffer protection plate 4 and the strap 2. At the same time, the flanges 41 on both sides also increase the limiting effect on the strap 2, and in the process of adjusting the strap 2, the strap 2 is prevented from being displaced, thereby improving the adjustment efficiency.

[0090] In some optional embodiments, the buffer protection plate 4 is a rubber material. Optionally, the buffer protection plate 4 is made of ethylene propylene diene monomer rubber (EPDM) with a thickness of 3 mm.

[0091] In some embodiments, a reinforcing rib 6 is provided between the fixed reinforcing portion 3 and the buffer protection plate 4. The reinforcing rib 6 is used to enhance the strength inside the fixed reinforcing portion 3 and improve the supporting force for the gas cylinder 200.

[0092] According to some embodiments of the second aspect of the present invention, the vehicle-mounted hydrogen system 100 comprises a gas cylinder 200 and a strap 2. The gas cylinder 200 is fixed by the outer cover of the strap 2. The strap 2 here is the structure of the embodiment of the first aspect of the present application, and the strap 2 provides a more stable connection and effective protection for the gas cylinder 200.

[0093] Specifically, the shell wall of the gas cylinder 200 includes a pressure-resistant layer and a carbon fiber composite layer wrapped outside the pressure-resistant layer. The gas cylinder 200 is an adjustable bottle whose diameter can be adjusted as the internal pressure changes. When the internal pressure of the gas cylinder 200 is high, the carbon fiber composite layer wrapped outside the pressure-resistant layer is used to improve the overall pressure resistance, thereby making the pressure-resistant layer thinner and lighter, making it easier to design the gas cylinder 200 lightweight, thereby reducing the overall weight. At this time, the strap 2 of the present application is used to adjust the size of the circular opening as the diameter of the gas cylinder 200 changes, thereby achieving self-adjusting tightening.

[0094] Specifically, the diameter of the gas cylinder 200 does not vary by more than 3%.

[0095] In some embodiments, Figure 6 As shown, the binding belt 2 is also provided with a pipe mounting bracket 5. The pipe mounting bracket 5 is provided on the binding belt 2, and a through groove is formed between the binding belt 2 and the surface of the binding belt 2, and the through groove extends along the circumferential direction of the binding belt 2.

[0096] In actual application, the pipeline mounting bracket 5 effectively constrains and fixes the pipeline on the surface of the gas cylinder 200 through its structural characteristics. This allows the pipeline to fit tightly on the surface of the gas cylinder 200, reducing the risk of loosening or damage to the pipeline due to vibration or collision. At the same time, since the pipeline is arranged along the circumferential direction of the binding belt 2, the space utilization between the gas cylinder 200 and the pipeline is further improved, and the space layout inside the vehicle is optimized.

[0097] like Figure 8 As shown, the vehicle according to some embodiments of the third aspect of the present utility model comprises a vehicle body longitudinal beam and a vehicle-mounted hydrogen system 100. The vehicle-mounted hydrogen system 100 is installed on one side of the vehicle body longitudinal beam.

[0098] By installing the on-board hydrogen system 100 at the above position, the load balance of the vehicle is achieved. Specifically, the on-board hydrogen system 100 is installed on one side of the vehicle body longitudinal beam, so that there is enough space on the other side of the vehicle body longitudinal beam to set other important components, such as batteries, power batteries, etc. This layout helps to balance the load distribution of the vehicle, making the left and right weight distribution of the vehicle more uniform, thereby optimizing the vehicle's handling performance and driving stability, and improving the safety of the vehicle.

[0099] By providing the on-board hydrogen system 100 in the second aspect embodiment, the vehicle in the third aspect embodiment of the utility model has an on-board hydrogen system 100 with high safety and reliability.

[0100] Below, refer to the attached Figure 1-Figure 7 , describing a protective structure 10 according to a specific embodiment of the present application.

[0101] Reference Figure 7The protective structure 10 includes: a protective skin 1, a strap 2, a fixed reinforcement part 3 and a buffer protection plate 4.

[0102] The strap 2 is used for the outer garment and for fixing the gas cylinder 200 .

[0103] Reference Figure 1 The binding belt 2 includes: two binding sections 20, an adjustment mechanism 23, and two skin fixing positions 24. The two binding sections 20 are distributed along the circumferential direction.

[0104] The two binding sections 20 are respectively an upper binding strap 21 and a lower binding strap 22 .

[0105] Reference Figure 2 The two skin fixing positions 24 are respectively located at the upper strap 21 and the lower strap 22 , and the two skin fixing positions 24 are arranged along the circumferential direction of the strap 2 .

[0106] The inner end 22a of the lower strap 22 is used for fixed connection to the longitudinal beam of the vehicle body. The inner end 22a of the lower strap 22 is rotatably connected to the inner end 21a of the upper strap 21. An adjustment mechanism 23 is provided between the outer end 21b of the upper strap 21 and the outer end 22b of the lower strap 22.

[0107] The adjusting mechanism 23 is used to adjust the size of the circular opening. The adjusting mechanism 23 is an elastic adjusting mechanism.

[0108] Reference Figure 3 The adjustment mechanism 23 includes: an elastic member 231 , an adjustment rod 232 , an adjustment hole 233 and an adjustment nut 234 .

[0109] The adjusting rod 232 is connected to the upper strap 21 .

[0110] The upper binding belt 21 includes a through hole 211 and a connecting shaft 212 .

[0111] The through hole 211 is provided at the end of the upper binding strap 21. The connecting shaft 212 crosses the through hole 211, and a connecting hole 2120 adapted to the adjusting rod 232 is provided on the side of the connecting shaft 212.

[0112] The adjusting rod 232 is provided with a connecting nut 2321 . When the adjusting rod 232 is passed through the connecting shaft 212 , the connecting nut 2321 is located at a side of the adjusting rod 232 away from the elastic member 231 .

[0113] The adjustment hole 233 is provided on the lower strap 22 , and the adjustment rod 232 is fitted in the adjustment hole 233 .

[0114] The adjusting nut 234 is threadedly connected to the adjusting rod 232 . The elastic member 231 is a heavy spring and is covered with the adjusting rod 232 . One end of the elastic member 231 abuts against the adjusting nut 234 , and the other end abuts against the lower strap 22 .

[0115] The adjustment hole 233 is a long hole.

[0116] Reference Figure 7 The protective skin 1 includes: a connected skin bottom plate 11 and a skin side plate 12.

[0117] The skin side plate 12 is provided with an adjustment opening 13 , which is directly opposite to the adjustment mechanism 23 .

[0118] The upper binding belt 21 includes an extended fixing plate 25. The extended fixing plate 25 is extended along the axial direction of the binding belt 2 and is used to connect the skin side plate 12 of the protective skin 1.

[0119] The fixing reinforcement part 3 is provided on the outer periphery of the lower tie 22 to connect the vehicle body longitudinal beam.

[0120] Reference Figure 4 The buffer protection plate 4 is arranged at the inner bottom of the strap 2 , and the buffer protection plate 4 is an integrally formed plate, which is used to fit closely to the gas cylinder 200 .

[0121] The buffer protection plate 4 is provided with flanges 41 on both sides along the width thereof. The flanges 41 on both sides extend toward the side away from the gas storage cylinder 200 and then bend toward each other.

[0122] Other components of the protective structure 10 according to the embodiment of the utility model, such as the on-board hydrogen system 100 and the vehicle, are known to those skilled in the art and will not be described in detail here.

[0123] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0124] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A strap for a vehicle-mounted hydrogen system, characterized in that: The binding band forms a circular opening to cover and fix the gas cylinder, and the binding band is provided with an adjustment mechanism for adjusting the size of the circular opening; The binding belt comprises at least two binding segments distributed along the circumferential direction, and the adjustment mechanism connects two adjacent binding segments; The adjusting mechanism is an elastic adjusting mechanism, and the adjusting mechanism comprises an elastic member.

2. The strap for the vehicle-mounted hydrogen system according to claim 1, characterized in that: The regulating mechanism comprises: An adjusting rod, rotatably connected to one of the two adjacent binding sections; An adjustment hole, the adjustment hole being arranged on the other binding section, and the adjustment rod being engaged with the adjustment hole; One end of the elastic member is connected to the adjusting rod, and the other end is connected to the binding section provided with the adjusting hole.

3. The strap of the vehicle-mounted hydrogen system according to claim 2, characterized in that: The adjustment mechanism also includes: an adjustment nut, the adjustment nut is threadedly connected to the adjustment rod, the elastic member is a heavy spring and is wrapped around the adjustment rod, one end of the elastic member abuts against the adjustment nut, and the other end abuts against the binding section provided with the adjustment hole.

4. The strap for the vehicle-mounted hydrogen system according to claim 3, characterized in that: The adjusting hole is a long hole.

5. The strap for the vehicle-mounted hydrogen system according to claim 1, characterized in that: The strap comprises an upper strap and a lower strap, the inner end of the lower strap is used for fixed connection to the longitudinal beam of the vehicle body, the inner end of the lower strap is rotatably connected to the inner end of the upper strap, and the adjustment mechanism is provided between the outer end of the upper strap and the outer end of the lower strap.

6. The strap for the vehicle-mounted hydrogen system according to claim 1, characterized in that: An extension fixing plate is provided on the binding strap, the extension fixing plate is spaced apart from the adjustment mechanism, and the extension fixing plate is extended along the axial direction of the binding strap for connecting the protective skin.

7. The strap of the vehicle-mounted hydrogen system according to any one of claims 1 to 6, characterized in that: Also includes: A fixed reinforcement portion, the fixed reinforcement portion being arranged at the periphery of the binding strap to connect to the longitudinal beam of the vehicle body; A buffer protection plate is arranged at the inner bottom of the binding strap, and the buffer protection plate is an integrally formed plate, and is used to fit closely to the gas cylinder.

8. A vehicle-mounted hydrogen system, characterized in that: include: Gas cylinders; According to the strap of the on-vehicle hydrogen system according to any one of claims 1-7, the strap outer cover fixes the gas storage cylinder.

9. The vehicle-mounted hydrogen system according to claim 8, characterized in that: The shell wall of the gas storage bottle comprises a pressure-resistant layer and a carbon fiber composite layer wound outside the pressure-resistant layer. The gas storage bottle is an adjustable bottle whose diameter is adjustable as the internal pressure changes.

10. A vehicle, characterized in that: include: body longitudinal beams; According to the on-vehicle hydrogen system of claim 9, the on-vehicle hydrogen system is installed on one side of the vehicle body longitudinal beam.

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