Tank mounting bracket and on-board hydrogen storage system

Abstract

This application relates to the field of tank installation technology and provides a tank mounting bracket and an on-board hydrogen storage system. The tank mounting bracket of this application includes a main support frame; the main support frame includes multiple support plates spaced apart along the length of the tank mounting bracket, and connecting beams connecting the support plates. The support plates are formed by punching sheet metal and include a main body and columns formed on both sides of the main body; each support plate has a tank mounting hole on its main body for the tank to pass through, and the main support frame also includes a saddle corresponding to the tank mounting hole on the main body, the saddle providing support for the tank passing through the mounting hole. The tank mounting bracket of this application uses support plates integrally punched from sheet metal, avoiding the use of large amounts of C-shaped or U-shaped steel for welding, thus improving the lightweight level of the tank's fixed support frame structure.

Description

Technical Field

[0001] This application relates to the field of tank installation technology, and in particular to a tank mounting bracket and a vehicle-mounted hydrogen storage system. Background Technology

[0002] With increasing environmental awareness, new energy vehicles have experienced rapid development. Among them, hydrogen fuel cell vehicles are gradually gaining attention; especially in the heavy-duty truck sector, although heavy-duty trucks do not account for a high overall proportion of all vehicles, the annual carbon dioxide emissions of heavy-duty trucks using fossil fuels typically account for more than 50% of all vehicle types; therefore, hydrogen-powered heavy-duty trucks are of great strategic significance for achieving dual-carbon goals.

[0003] Currently, hydrogen storage in hydrogen-powered heavy-duty trucks mainly involves storing hydrogen as a high-pressure gas in hydrogen storage cylinders (tanks), which are then integrated and fixedly installed into the hydrogen storage system.

[0004] In related technologies, in order to increase the reliability and vibration resistance of the system and ensure the stability and reliability of the hydrogen storage system, a frame reinforced with as many steel beams as possible is usually adopted. The frame uses a large number of C-shaped or U-shaped steel beams as supporting steel beams, which leads to an increase in the weight of the system and an increase in the number of welds. Moreover, the traditional truss system built with steel pipes has low stiffness, resulting in a smaller system modality and the problem of frame vibration and abnormal noise during vehicle operation. Utility Model Content

[0005] In view of this, this application aims to propose a tank fixing bracket to improve the lightweight level of the fixed support frame structure of the storage tank.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0007] A tank fixing frame includes a main support frame; the main support frame includes a plurality of support plates spaced apart along the length of the tank fixing frame, and a connecting beam connecting each of the support plates; the support plates are formed by punching sheet metal, and each support plate includes a main body and columns formed on both sides of the main body; each of the main bodies of the support plates has a tank mounting hole for the storage tank to pass through, and the main support frame also includes a saddle on the main body, the saddle being located at the bottom of the tank mounting hole to support the storage tank.

[0008] Furthermore, the top of the supporting plate is provided with a top crossbeam connecting the columns on both sides. The connecting beam includes a top diagonal beam and a main diagonal beam. The top diagonal beam connects the top crossbeams of two adjacent supporting plates, and the main diagonal beam connects the columns on the same side of two adjacent supporting plates.

[0009] Furthermore, the main support frame also includes a plurality of reinforcing bases disposed at the bottom of the support plate, and the reinforcing bases are arranged at intervals in the width direction of the tank fixing frame.

[0010] Furthermore, the reinforcing base is box-shaped and includes a base plate and side plates surrounding the edge of the base plate; the base plate is fixedly connected to the main body, and corresponding positions on the base plate and the main body are provided with connecting portions for fixing the reinforcing base and the supporting plate.

[0011] Furthermore, the saddle includes a saddle arc plate located at the edge of the tank mounting hole, and a support structure located on the main body, the support structure being supported below the saddle arc plate.

[0012] Furthermore, the main support frame also includes lifting lugs disposed on both sides of the saddle, and a strap for fixing the storage tank to the saddle; the two ends of the strap are respectively connected to the lifting lugs on both sides of the saddle.

[0013] Furthermore, a plurality of tank mounting holes are arranged in the width direction of the main body, and the lifting lug includes a first lifting lug disposed adjacent to the column and a second lifting lug located between two adjacent saddles;

[0014] The second lifting lug has two lifting holes spaced apart along the width direction of the main body plate for connecting the strap, and a reinforcing rib is provided between the two lifting holes. The reinforcing rib is fixed between the base plate and the main body plate.

[0015] Furthermore, both ends of the strap are provided with elastic elements, and the strap is connected to the lug through the elastic elements.

[0016] Furthermore, it also includes two skin supports; along the length of the tank fixing frame, the two skin supports are respectively located on both sides of the main support frame and distributed around the periphery of the storage tank.

[0017] Compared with related technologies, this application has the following advantages:

[0018] (1) The main support frame of the tank fixing frame of this application is constructed by a support plate integrally punched and formed by plate. Multiple support plates are fixedly connected by connecting beams to form the main support frame, which avoids the use of a large amount of C-shaped or U-shaped steel for welding. The tank mounting holes opened on the main body of the support plate and the saddle below it can support the storage tank well. The columns bent on the side of the support plate can form reliable support in the height direction of the tank fixing frame, effectively reducing the amount of steel used and the amount of welding work, which is conducive to improving the lightweight level of the fixed support frame structure of the storage tank.

[0019] (2) Adding a top crossbeam to the top of the supporting uprights connects the tops of the columns on both sides, which enhances the stability of the top structure of the supporting uprights and creates the top outline of the tank fixing frame. This effectively prevents objects above from impacting the storage tank, thereby improving the protective capability of the tank fixing frame. Connecting beams such as top diagonal beams and main diagonal beams are set between two adjacent supporting uprights, which can reliably fix multiple supporting uprights into one, forming a stable and reliable main support frame for the entire structure.

[0020] (3) Adding multiple reinforcing bases to the bottom of the support plate can effectively increase the contact area between the support plate and the base surface, thereby enhancing the stability of the tank fixing frame and preventing pressure damage and destruction to the base surface.

[0021] (4) The reinforced base adopts a box structure. Through the connecting parts set on the base plate and the main body, the reinforced base can be reliably fixed to the support plate by screws and other connecting parts. The side plates located at the edge of the base plate are connected end to end to form a stable frame. The bottom side plate serves as the support leg of the main support frame and contacts the base surface, so that the reinforced base has good bottom reinforcement and assembly performance.

[0022] (5) A saddle arc plate is set at the bottom arc edge of the tank mounting hole to provide sufficient support area for the storage tank. At the same time, a support seat, support plate and other support structures are set at the bottom of the saddle arc plate. The support structure is welded and fixed to the main body and the saddle arc plate to form a reliable load-bearing structure, so that the saddle can play a good supporting role for the storage tank.

[0023] (6) Lifting lugs are installed on both sides of the saddle on the main body. With the help of straps, the storage tank can be securely bound to the main support frame to prevent the storage tank from swinging upwards or even falling off the tank support frame when the tank frame vibrates up and down.

[0024] (7) Two lifting holes are provided at intervals on the second lifting lugs, which have saddles on both the left and right sides, so that two straps can be connected to each other, thereby restraining the storage tanks on both sides and enabling the second lifting lugs to function as two lifting lugs. At the same time, a reinforcing rib is added between the base plate of the second lifting lug and the main plate, which can effectively improve the connection firmness of the second lifting lug on the main plate.

[0025] (8) The ends of the straps are connected to the corresponding lifting lugs with elastic elements, which can give the straps good elastic constraint ability, overcome the problem of the length error of the straps, and better securely bind the storage tank to the tank fixing frame.

[0026] (9) Skin brackets are installed on the front and rear sides of the main support frame to surround the storage tanks that protrude outside the main support frame, thus providing good protection for each storage tank on the main support frame. At the same time, the length of the main support frame is more flexible and is not limited by the length of the storage tank. With the length of the main support frame reasonably reduced, a reliable main support frame can be built by using two support plates and a shorter connecting beam. With the addition of skin brackets, a tank fixing frame with reliable performance and obvious lightweight advantages can be formed.

[0027] Another objective of this application is to provide an on-board hydrogen storage system, including a storage tank for storing hydrogen; the on-board hydrogen storage system also includes the tank mounting bracket described in this application. The on-board hydrogen storage system of this application possesses the technical advantages of the aforementioned tank mounting bracket. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of the tank fixing frame described in the embodiment of this application;

[0030] Figure 2 for Figure 1 The diagram shown is a schematic of the tank mounting bracket with the tank and straps hidden.

[0031] Figure 3 This is a schematic diagram of the overall structure of the main support frame described in the embodiments of this application;

[0032] Figure 4 This is a structural schematic diagram of the support plate and its associated components described in the embodiments of this application;

[0033] Figure 5 for Figure 4A schematic diagram showing the disassembled structure of the supporting upright plate and its related components;

[0034] Figure 6 This is a schematic diagram of the structure of the reinforcing base described in the embodiment of this application;

[0035] Figure 7 This is a schematic diagram of the strap structure described in an embodiment of this application;

[0036] Figure 8 This is a schematic diagram of the skin support structure described in the embodiments of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Storage tanks;

[0039] 2. Support plate; 20. Main body; 200. Tank mounting hole; 201. Weight reduction hole; 21. Column;

[0040] 30. Reinforced base; 300. Base plate; 301. Side plate; 302. Connecting part; 31. Top crossbeam; 32. Main diagonal tie beam; 33. Top diagonal tie beam;

[0041] 4. Lifting lug; 400. Base plate; 401. Side flange; 402. Lifting hole; 41. Second lifting lug; 410. Reinforcing rib; 42. First lifting lug;

[0042] 5. Saddle; 500. Saddle arc plate; 501. Support seat; 502. Support plate; 503. First soft pad;

[0043] 6. Strap; 60. Elastic element; 600. Hanging rod; 601. Spring element; 61. Second soft pad;

[0044] 7. Skin support frame; 700. Vertical beam; 701. Horizontal beam; 702. Longitudinal beam; 703. Diagonal support beam;

[0045] 8. Rear door panel. Detailed Implementation

[0046] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0048] Furthermore, it should be stated in the description of this application that if terms indicating orientation or positional relationship, such as "up," "down," "left," "right," "front," "rear," "inner," or "outer," appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the vehicle in which the on-board hydrogen storage system described in this application is located as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the vehicle's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction). Specifically, as shown in the accompanying drawings, the X direction is the vehicle's front-back direction, where the side pointed by the arrow is "front," and the opposite is "rear." The Y direction is the vehicle's horizontal direction, where the side pointed by the arrow is "left," and the opposite is "right." The Z direction is the vehicle's vertical direction, where the side pointed by the arrow is "up," and the opposite is "down." "," "Inner" and "outer" are defined based on the outline of the corresponding component. For example, "inner" and "outer" are defined based on the outline of the vehicle. The side of the vehicle outline closer to the middle of the vehicle is "inner", and the other side is "outer".

[0049] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joint," and "connector" should be interpreted broadly. For example, a connection 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 an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances. The qualifying terms such as "first," "second," "A," "B," "C," and "D" appearing in the description of this application are merely for distinguishing similar features in different locations, attributions, or uses, in order to avoid ambiguity and confusion, and should not be construed as indicating or implying relative importance.

[0050] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] As is well known, current hydrogen storage methods for hydrogen-powered heavy-duty trucks primarily involve storing hydrogen as a high-pressure gas in storage tanks, which are then integrated and fixedly installed into the hydrogen storage system. In related technologies, to increase system reliability and vibration resistance, and ensure the stable operation of the hydrogen storage system, a frame reinforced with as many steel beams as possible is typically used. This frame utilizes a large number of C-shaped or U-shaped steel beams as supporting beams, leading to increased system weight and more welds. Furthermore, traditional truss systems constructed using steel pipes have low stiffness, resulting in smaller system modalities and causing frame vibration and abnormal noise during vehicle operation.

[0052] In view of the above-mentioned problems in the related technologies, this application innovatively proposes a brand-new tank fixing frame, which can improve the lightweight level of the fixed support frame structure of the storage tank.

[0053] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0054] An embodiment of the first aspect of this application provides a tank mounting bracket, which can be applied to on-board hydrogen storage systems and other scenarios using tank transportation; an exemplary structure is as follows: Figure 1 , Figure 2 and Figure 3 As shown.

[0055] Overall, the tank fixing frame includes a main support frame; the main support frame includes multiple support plates 2 spaced apart along the length of the tank fixing frame, and connecting beams connecting the support plates 2. The support plates 2 are made of sheet metal and include a main body 20 and columns 21 formed on both sides of the main body 20. Each support plate 2 has a tank mounting hole 200 for the storage tank 1 to pass through on its main body 20. The main support frame also includes a saddle 5 disposed on the main body 20, located at the bottom of the tank mounting hole 200, to support the storage tank 1 passing through the tank mounting hole 200.

[0056] Based on the above overall design concept, the main support frame of the tank fixing frame of this application is constructed by a support plate 2 formed by integral punching of sheet metal. Multiple support plates 2 are fixedly connected by connecting beams to form the main support frame, avoiding the use of a large amount of C-shaped or U-shaped steel for welding. The tank mounting holes 200 opened on the main body 20 of the support plate 2 and the saddle 5 below it can well support the storage tank 1. The columns 21 bent on the side of the support plate 2 can form reliable support in the height direction of the tank fixing frame, effectively reducing the amount of steel used and the amount of welding work, which is conducive to improving the lightweight level of the fixed support frame structure of the storage tank 1.

[0057] Based on the above overall design concept, such as Figure 1 , Figure 2 and combined Figure 3 As shown, in terms of overall design, the tank fixing frame in this embodiment mainly includes two parts: the main support frame and the skin support 7.

[0058] Among them, storage tank 1 is set on the main support frame, which plays a load-bearing role, while the skin support 7 mainly plays a protective role for storage tank 1.

[0059] It should be noted that, based on the above overall design concept, the technical solution of this application can adopt a variety of different specific implementation structures, forms, or configuration sequences. For example, the tank mounting hole 200 mentioned above can be circular or square, and should be designed accordingly based on the cross-sectional shape of the storage tank 1; the connecting beam can be made of long strip plates, or it can be made of C-shaped steel, angle steel, etc. The specific setting sequence and assembly method of the supporting upright plate 2, its upper saddle 5, and connecting beams can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above overall setting, reasonable and flexible design can be made by referring to mature setting methods in the field and the actual situation during implementation, etc., which will not be elaborated here. The specific implementation scheme described below in this embodiment is only one of the many solutions that can be formed by the above various combinations and variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many solutions that can be formed by the above various specific combinations and variations, as well as the specific implementation scheme of this embodiment, are all within the protection scope of this application.

[0060] The forming method of the column 21 can be achieved through processes such as bending and stamping. When a right angle is bent into the side of the supporting plate 2, the column 21 is similar to the form of angle steel, playing a role in vertical support. Preferably, the tank mounting holes 200 on each supporting plate 2 should be arranged facing each other along the length of the tank fixing frame, so that the storage tank 1 can be sequentially inserted into the facing tank mounting holes 200 on each supporting plate 2, allowing each supporting plate 2 to collectively support the storage tank 1.

[0061] Continue as before Figure 3 As shown, in some preferred exemplary embodiments, the top of the supporting plate 2 in this embodiment is provided with a top crossbeam 31 connecting the columns 21 on both sides. The connecting beam includes a top diagonal beam 33 and a main diagonal beam 32. The top diagonal beam 33 connects the top crossbeams 31 of two adjacent supporting plates 2, while the main diagonal beam 32 connects the columns 21 on the same side of two adjacent supporting plates 2. Adding a top crossbeam 31 to the top of the supporting plate 2 connects the tops of the columns 21 on both sides, which can enhance the stability of the top structure of the supporting plate 2 and can also construct the top outline of the tank fixing frame. In this way, it can effectively prevent objects above from impacting the storage tank 1, thereby improving the protective capability of the tank fixing frame. Setting connecting beams such as the top diagonal beam 33 and the main diagonal beam 32 between two adjacent supporting plates 2 can reliably fix multiple supporting plates 2 into one, forming a stable and reliable main support frame for the entire structure.

[0062] like Figure 4 , Figure 5 As shown, in some preferred exemplary embodiments, the main support frame of this embodiment further includes a plurality of reinforcing bases 30 disposed at the bottom of the support plate 2, with each reinforcing base 30 spaced apart in the width direction of the tank fixing frame. The number of reinforcing bases 30 can be flexibly selected; in this embodiment, each support plate 2 has three reinforcing bases 30 at its bottom, located at the bottom of the two columns 21 and at the center of the bottom of the support plate 2, respectively. Adding a plurality of reinforcing bases 30 to the bottom of the support plate 2 can effectively increase the contact area between the support plate 2 and the base surface, thereby enhancing the stability of the tank fixing frame and preventing pressure damage and destruction to the base surface.

[0063] Regarding the specific design of the reinforcing base 30, there are, of course, various structural options available; for example, a triangular support could be used. However, in this embodiment, as... Figure 6As shown, the reinforcing base 30 is box-shaped, including a base plate 300 and side plates 301 surrounding the edge of the base plate 300. The base plate 300 is fixed to the main body 20, and corresponding positions on the base plate 300 and the main body 20 are provided with connecting parts 302 for fixing the reinforcing base 30 and the supporting upright plate 2. The connecting parts 302 can be in the form of connecting holes. The reinforcing base 30 adopts a box structure. Through the connecting parts 302 provided on the base plate 300 and the main body 20, the reinforcing base 30 can be reliably fixed to the supporting upright plate 2 using screws or other connectors. The side plates 301 located at the edge of the base plate 300 can be connected end to end to form a stable frame. The bottom side plates 301 serve as the legs of the main support frame and contact the base surface, giving the reinforcing base 30 good bottom reinforcement and assembly performance.

[0064] In addition, such as Figure 3 As shown, the number of support plates 2 in the main support frame can be two or more; preferably, only two support plates 2 are set, and the two support plates 2 are fixed together by multiple connecting beams; this can reduce the material used in the tank fixing frame and further improve the lightweight level of the tank fixing frame.

[0065] Regarding the specific configuration of the saddle 5, there are, of course, various different structural schemes to choose from; in this embodiment, such as Figure 4 and Figure 5 As shown, in some preferred exemplary embodiments, the saddle 5 includes a saddle arc plate 500 disposed at the edge of the tank mounting hole 200, and a support structure disposed on the main body 20, which supports the saddle arc plate 500. The connection method of the saddle 5 can, of course, be screwed or welded; preferably, the saddle arc plate 500, the main body 20, and the support structure are all welded together.

[0066] A saddle arc plate 500 is provided along the bottom arc edge of the mounting hole 200 of the tank body, which can provide sufficient support area for the storage tank 1. At the same time, support structures such as support seat 501 and support plate 502 are provided at the bottom of the saddle arc plate 500. The support structure is welded and fixed to the main body 20 and the saddle arc plate 500 to form a reliable load-bearing structure, so that the saddle 5 can play a good supporting role for the storage tank 1.

[0067] At the same time, still as Figure 1 and Figure 3 , Figure 5As shown, the main support frame in this embodiment also includes lifting lugs 4 disposed on both sides of the saddle 5, and straps 6 for fixing the storage tank 1 to the saddle 5; the two ends of the straps 6 are connected to the lifting lugs 4 on both sides of the saddle 5 respectively. Specifically, the lifting lug 4 includes a base plate 400 and side flanges 401 bent into shape on both sides of the base plate 400. The ends of the base plate 400 and the side flanges 401 are welded to the main body 20. The side flanges 401 can improve the connection firmness of the lifting lug 4 on the main body 20. Lifting holes 402 are provided on the base plate 400 for connecting the straps 6. The lifting lugs 4 are provided on both sides of the saddle 5 on the main body 20. With the straps 6, the storage tank 1 can be securely bound and fixed to the main support frame, preventing the storage tank 1 from swinging upwards or even falling off the tank fixing frame when the tank fixing frame vibrates up and down.

[0068] The specific number of storage tanks 1 installed on the tank fixing frame can be one or more. Preferably, such as... Figure 1 As shown, in some preferred exemplary embodiments, six storage tanks 1 are arranged in an array on the tank mounting bracket. Therefore, a plurality of tank mounting holes 200 are arranged in the width direction of the main body 20, specifically two in the width direction of the tank mounting bracket and three in the height direction of the tank mounting bracket, thus forming the arrangement of the six storage tanks 1.

[0069] Based on the above configuration, there are also six saddles 5. The upper and middle saddles 5 can use support seats 501 as supports for the saddle arc plate 500. The support seats 501 are welded to the bottom of the saddle arc plate 500 and the main body 20 to form a box-like support. For the lower saddles 5, due to the smaller space and the need for a reinforcing base 30, support plates 502 can be used to support the saddle arc plate 500. The support plates 502 can be triangular plates, welded to the junction of the saddle arc plate 500 and the main body 20 to form a reliable triangular support. To improve the support effect of the saddles 5 on the storage tank 1, a first soft pad 503 can be added to the saddle arc plate 500 to provide vibration isolation and prevent damage to the surface of the storage tank 1.

[0070] In the above configuration, the lifting lug 4 of this embodiment includes a first lifting lug 42 adjacent to the column 21 and a second lifting lug 41 located between two adjacent saddles 5. The base plate 400 of the second lifting lug 41 has two lifting holes 402 spaced apart, which are spaced apart along the width direction of the main body plate 20. A reinforcing rib 410 is provided between the two lifting holes 402 and is fixedly connected between the base plate 400 and the main body 20.

[0071] For the case where the first lifting lug 42 between the outermost tank mounting hole 200 and the column 21 only needs to connect one strap 6, the first lifting lug 42 only needs to have one lifting hole 402. However, the second lifting lug 41 located between two adjacent tank mounting holes 200 needs to connect two straps 6 simultaneously. Therefore, two lifting holes 402 are provided at intervals on the second lifting lug 41, which has saddles 5 on both the left and right sides, so that two straps 6 can be connected respectively, thereby achieving the binding of the storage tanks 1 on both sides, so that the second lifting lug 41 can perform the function of two lifting lugs 4. At the same time, a reinforcing rib plate 410 is added between the base plate 400 and the main plate 20 of the second lifting lug 41, which can effectively improve the connection firmness of the second lifting lug 41 on the main plate 20.

[0072] In addition, regarding the arrangement of the tank mounting holes 200 on the main body 20, weight reduction holes 201 can be set in the empty positions of the main body 20 between the tank mounting holes 200 to further reduce the weight of the support plate 2.

[0073] For the specific configuration of the strap 6, refer to the configuration of related technologies. In this embodiment, as shown... Figure 7 As shown, both ends of the strap 6 are provided with elastic elements 60, and the strap 6 is connected to the lifting lug 4 through the elastic elements 60. The elastic element 60 can be a hanging spring (also called a spring support), and existing mature products can be used; in this embodiment, the elastic element 60 includes a lifting rod 600 and a spring element 601 sleeved on the lifting rod 600; the top end of the lifting rod 600 is connected to the strap 6; the lifting rod 600 passes through the lifting hole 402 on the lifting lug 4 and the spring element 601 located below the lifting lug 4, and then a lock nut is screwed on, thereby fastening the lifting rod 600 to the lifting lug 4; the spring element 601 plays the role of elastic tension. The end of the strap 6 is connected to the corresponding lifting lug 4 with the elastic element 60, which can give the strap 6 good elastic restraint ability, overcome the problem of error in the length of the strap 6, and better securely bind the storage tank 1 to the tank fixing frame.

[0074] At the same time, a second pad 61 can be placed on the inside of the strap 6 to form a good cushioning effect between the strap 6 and the storage tank 1, preventing the strap 6 from damaging the wall of the storage tank 1.

[0075] Continue as Figure 1 and combined Figure 7As shown, the tank fixing frame in this embodiment also includes two skin supports 7. Along the length of the tank fixing frame, the two skin supports 7 are respectively located on both sides of the main support frame. The storage tank 1 has an exposed portion located outside the main support frame, and the skin supports 7 are located around these exposed portions, thus providing good protection for the storage tank 1. After the skin is installed on the skin supports 7, the storage tank 1 can be tightly wrapped. The skin supports 7 are set on the front and rear sides of the main support frame to surround the storage tanks 1 protruding outside the main support frame, thus providing good protection for each storage tank 1 on the main support frame. At the same time, the length of the main support frame is more flexible and is not limited by the length of the storage tank 1. With a reasonable reduction in the length of the main support frame, a reliable main support frame can be constructed using two support plates 2 and a shorter connecting beam. With the addition of the skin supports 7, a reliable and lightweight tank fixing frame can be formed.

[0076] Of course, the aforementioned skin support 7 can be welded from various materials such as long strips, square steel, and pipes, and the specific beam arrangement and distribution can also be flexibly designed. In this embodiment, the skin support 7 includes vertical beams 700 set at the four corners of the tank fixing frame, longitudinal beams 702 connecting the vertical beams 700 and the columns 21, and transverse beams 701 connecting the two opposing vertical beams 700; thus, the skin support 7 presents a square frame shape, and then the skin can be set on the outer surface of the skin support 7; in this way, the skin support 7 can form protection for the storage tank 1 from multiple directions such as top, bottom, left, right, front, and back. In the case where the longitudinal beam 702 is connected to the support plate 2, in order to improve the connection strength between the skin bracket 7 and the support plate 2, a certain number of inclined support beams 703 can be added to the skin bracket 7. Each inclined support beam 703 can be led out from the middle position of the longitudinal beam 702, extended obliquely towards the support plate 2, and welded to the column 21 or the top crossbeam 31 of the support plate 2.

[0077] Based on the above exemplary embodiments, as a preferred combination of the exemplary solutions, refer to Figures 1 to 8 As shown, the following overall scheme can be referred to when implementing the tank fixing bracket of this application:

[0078] The support plate 2 in the main support frame can be made from a single steel plate. The tank mounting holes 200 and columns 21 on the support plate 2 are created through cutting and bending processes. Then, a saddle 5, a reinforcing base 30, a top crossbeam 31, etc., are welded onto the support plate 2, and straps 6 are added. Two support plates 2 are connected by multiple connecting beams to form the main support frame, serving as the main load-bearing structure for the storage tank 1. Skin brackets 7 are then welded onto the front and rear sides of the main support frame. An openable rear door panel 8 can be added to the rear of the skin bracket 7. When the tank mounting frame is used in an on-board hydrogen storage system, the rear door panel 8 can serve as the vehicle's tailgate after the tank mounting frame is installed on the vehicle.

[0079] Each supporting plate 2 has three reinforcing bases 30 at its bottom, located at both ends and in the middle. The reinforcing bases 30 at both ends are U-shaped steel with reinforcing plates welded to their ends, while the base plate 300 of the reinforcing base 30 on the other side is welded to the bottom of the column 21. The reinforcing base 30 in the middle is formed by bending a single plate and welding it to the center of the bottom of the main plate 20. The straps 6 are connected to the lifting lugs 4, and together with the saddle 5, they form the installation and fixing structure of the storage tank 1.

[0080] Two top diagonal bracing beams 33 can be installed between the top crossbeams 31 of the two supporting uprights 2, forming a parallelogram with the top crossbeams 31; the main diagonal bracing beam 32 between the two supporting uprights 2 is connected to the corresponding two columns 21, and the end of the main diagonal bracing beam 32 can correspond to the first lifting lug 42, that is, the first lifting lug 42 is located on the side of the supporting upright 2 facing away from the other supporting upright 2.

[0081] The skin support 7 consists of vertical beams 700, horizontal beams 701, longitudinal beams 702, and diagonal support beams 703, and is covered with a skin on the outside of the frame; the longitudinal beams 702 are welded and fixed to the support vertical plates 2. Because the skin support 7 has support structures in both the X and Y directions, it has high rigidity, which allows the skin support 7 to be composed of small and thin steel beams, thereby reducing the overall weight of the tank fixing frame.

[0082] Through the design of the main support frame, a steel structure is present in the middle of the tank mounting hole 200, which allows the force on the upper part of the frame to be transferred to the lower part, increasing the stiffness of the frame in the X direction and increasing the modality in that direction. This avoids the use of traditional pipe beam structures, and the design can reduce the amount of welding work and the number of steel beams used, thus achieving the purpose of weight reduction and cost reduction.

[0083] Meanwhile, a saddle 5 is provided on the side of the supporting plate 2. The saddle 5 and the main plate 20 form a "tube" structure, which avoids the problem of low rigidity and easy bending of the single plate itself. At the same time, the structure composed of the main plate 20 and the saddle 5 can meet the installation and load-bearing functions of the storage tank 1.

[0084] The installation of the lifting lugs 4 on the support plate 2 can act as a reinforcing rib, allowing weight-reduction holes to be made on the support base 501 of the saddle 5 and the main body 20, achieving the purpose of weight reduction without affecting the rigidity of the frame.

[0085] In the main support frame, the main diagonal tie beam 32 is welded obliquely between two columns 21 on the same side at the height positions of the saddle 5 and the lifting lug 4. This structural arrangement increases the stiffness of the main support frame in the Y direction of the tank body fixing frame. Because the end of the main diagonal tie beam 32 is welded to the support seat 501 of the saddle 5 at the corresponding position, and the upper end of the support seat 501 is provided with a saddle arc plate 500, the force in the Y direction of the main support frame can be distributed, allowing the column 21 formed by the bending of the support plate 2 to play a role in stiffness in the Y direction.

[0086] A reinforcing base 30 is located at the bottom of the supporting upright plate 2. Connecting portions 302 are provided on both the base plate 300 of the reinforcing base 30 and the supporting upright plate 2. This allows for the fixed connection between the reinforcing base 30 and the supporting upright plate 2, and also enables secure installation to the vehicle's floor. Because a steel structure exists in the middle of the tank mounting hole 200 of the supporting upright plate 2, the tank mounting hole 200 can fix this intermediate steel structure, thereby effectively increasing the X-direction rigidity of the main support frame.

[0087] In summary, the main support frame of the tank fixing frame in this embodiment is constructed using support plates 2 integrally punched from sheet metal. Multiple support plates 2 are fixedly connected by connecting beams to form the main support frame, avoiding the use of a large amount of C-shaped or U-shaped steel for welding. The tank mounting holes 200 on the main body 20 of the support plate 2 and the saddle 5 below it can well support the storage tank 1. The columns 21 bent on the side of the support plate 2 can form reliable support in the height direction of the tank fixing frame, effectively reducing the amount of steel used and the amount of welding work, which is conducive to improving the lightweight level of the fixed support frame structure of the storage tank 1.

[0088] The second aspect of this application provides an on-board hydrogen storage system, including a storage tank 1 for storing hydrogen; and the on-board hydrogen storage system also includes the tank mounting bracket provided in the first embodiment for fixing the storage tank 1.

[0089] The on-board hydrogen storage system of this application can be configured on vehicles, and is particularly suitable for heavy-duty trucks powered by hydrogen energy. By adopting the on-board hydrogen storage system of this application, the tank mounting bracket has significant technical advantages such as lightweight, high rigidity, high durability, low failure rate and low cost.

[0090] The main support frame achieves reduced material usage through optimized product structure, thereby reducing product weight and cost while also improving product rigidity. The coordinated design of the support plate 2, saddle 5, and main diagonal beam 32 increases the rigidity of the tank fixing frame in the X, Y, and torsional directions. The design of the column 21, formed by bending the side of the support plate 2, reduces the amount of steel beams used, thus reducing product weight and welding workload, lowering production costs. The weight-reducing holes on the support base 501 of the support plate 2 and saddle 5 further reduce the frame weight. The lowest saddle arc plate 500 uses a triangular support plate 502 for support and structural reinforcement, reducing steel usage and thus weight. The skin support 7, constructed using welded steel beams of smaller dimensions, further reduces the system's weight.

[0091] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A tank fixing bracket, characterized in that: It includes a main support frame; the main support frame includes a plurality of support plates (2) spaced apart along the length of the tank fixing frame, and a connecting beam connecting each of the support plates (2); The support plate (2) is made by punching and cutting sheet metal, and the support plate (2) includes a main body (20) and columns (21) formed on both sides of the main body (20); Each of the supporting uprights (2) has a tank mounting hole (200) on its main body (20) for the storage tank (1) to pass through. The main support frame also includes a saddle (5) on the main body (20). The saddle (5) is located at the bottom of the tank mounting hole (200) to support the storage tank (1).

2. The tank fixing bracket according to claim 1, characterized in that: The top of the supporting plate (2) is provided with a top crossbeam (31) connecting the columns (21) on both sides. The connecting beam includes a top diagonal beam (33) and a main diagonal beam (32). The top diagonal beam (33) is connected between the top crossbeams (31) of the two adjacent support plates (2), and the main diagonal beam (32) is connected between the columns (21) on the same side of the two adjacent support plates (2).

3. The tank fixing bracket according to claim 1, characterized in that: The main support frame also includes a plurality of reinforcing bases (30) located at the bottom of the support plate (2), and the reinforcing bases (30) are arranged at intervals in the width direction of the tank fixing frame.

4. The tank fixing bracket according to claim 3, characterized in that: The reinforcing base (30) is box-shaped, and the reinforcing base (30) includes a base plate (300) and a side plate (301) surrounding the edge of the base plate (300); The base plate (300) is fixedly connected to the main body (20), and the base plate (300) and the main body (20) are provided with connecting parts (302) for fixing the reinforcing base (30) and the supporting plate (2) at corresponding positions.

5. The tank fixing bracket according to claim 1, characterized in that: The saddle (5) includes a saddle arc plate (500) located at the edge of the tank mounting hole (200) and a support structure located on the main body (20), the support structure being supported below the saddle arc plate (500).

6. The tank fixing bracket according to claim 1, characterized in that: The main support frame also includes lifting lugs (4) located on both sides of the saddle (5), and straps (6) for fixing the storage tank (1) on the saddle (5); The two ends of the strap (6) are respectively connected to the lugs (4) on both sides of the saddle (5).

7. The tank fixing bracket according to claim 6, characterized in that: A plurality of tank mounting holes (200) are arranged in the width direction of the main body (20), and the lifting lug (4) includes a first lifting lug (42) adjacent to the column (21) and a second lifting lug (41) located between two adjacent saddles (5); The second lifting lug (41) has two lifting holes (402) spaced apart along the width direction of the main body plate (20) on its base plate (400) for connecting the strap (6), and a reinforcing rib plate (410) is provided between the two lifting holes (402), and the reinforcing rib plate (410) is fixed between the base plate (400) and the main body plate (20).

8. The tank fixing bracket according to claim 6, characterized in that: Both ends of the strap (6) are provided with elastic elements (60), and the strap (6) is connected to the lug (4) through the elastic elements (60).

9. The tank fixing bracket according to any one of claims 1 to 8, characterized in that: It also includes two skin supports (7); Along the length of the tank fixing frame, the two skin supports (7) are respectively located on both sides of the main support frame and distributed around the storage tank (1).

10. An on-board hydrogen storage system, comprising a storage tank (1) for storing hydrogen; characterized in that: The on-board hydrogen storage system further includes a tank mounting bracket as described in any one of claims 1 to 9.

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