Arrangement structure of components on frame of hydrogen fuel tractor and hydrogen fuel vehicle

Abstract

The invention relates to the field of new energy tractors, in particular to a hydrogen fuel tractor frame upper part arrangement structure and a hydrogen fuel vehicle, the hydrogen fuel tractor frame upper part arrangement structure comprises a cab, a hydrogen storage system, an electric pile heat dissipation system and a flow guide plate structure, the cab is arranged at the front upper position of the vehicle, and the hydrogen storage system is arranged on a frame and located on the rear side of the cab; the electric pile heat dissipation system is arranged on the rear side of the hydrogen storage system, and the flow guide plate structure is arranged on the rear side of the hydrogen storage system. The requirement for the strength of the hydrogen storage system can be lowered, the weight of the hydrogen storage system is reduced, and the height, weight and cost of the whole vehicle are reduced.

Description

Technical Field

[0001] The present invention relates to the field of new energy tractors, and more particularly, to a component layout structure on the frame of a hydrogen fuel tractor and a hydrogen fuel vehicle. Background Art

[0002] As a clean and carbon-free energy source, hydrogen will play an important role in the field of commercial vehicles. Hydrogen fuel tractors are most widely used due to their long endurance. However, tractors require a relatively large traction power, which needs to be matched with a larger fuel cell system. At the same time, the heat dissipation system of the fuel cell stack requires a larger space for layout. Currently, the fuel cell stack heat dissipation system 4, the pipeline of the fuel cell stack heat dissipation system 3, and the expansion tank 5 are mainly arranged on the top of the hydrogen storage system 6 (as shown in Figure 1 ), resulting in a relatively high vehicle height. Moreover, due to the requirements of GB / T26990 for the installation strength of the hydrogen storage system, it is necessary to strengthen the strength of the hydrogen storage system bracket, increasing the cost and weight. In addition, in order to reduce wind resistance and appearance obstruction, a cab side air deflector structure 1 and a cab top air deflector structure 2 are respectively provided on the side and top of the cab, increasing the cost and weight of the whole vehicle. Summary of the Invention

[0003] An object of the present invention is to provide a component layout structure on the frame of a hydrogen fuel tractor, which can reduce the strength requirements for the hydrogen storage system, reduce the weight of the hydrogen storage system, and lower the vehicle height, weight, and cost.

[0004] Another object of the present invention is to provide a hydrogen fuel vehicle, which can reduce the strength requirements for the hydrogen storage system, reduce the weight of the hydrogen storage system, and lower the vehicle height, weight, and cost.

[0005] The technical solution of the present invention is implemented as follows:

[0006] A component layout structure on the frame of a hydrogen fuel tractor includes a cab, a hydrogen storage system, a fuel cell stack heat dissipation system, and an air deflector structure. The cab is arranged at the front upper position of the vehicle. The hydrogen storage system is arranged on the frame and behind the cab. The fuel cell stack heat dissipation system is arranged behind the hydrogen storage system. The air deflector structure is arranged behind the hydrogen storage system.

[0007] Further, the fuel cell stack heat dissipation systems are respectively arranged at the left and right ends behind the hydrogen storage system.

[0008] Further, the air deflector structure includes a left air deflector and a right air deflector;

[0009] The left air deflector and the right air deflector are respectively arranged at the left and right ends behind the hydrogen storage system. Left and right closing plates are respectively arranged on the left and right sides of the hydrogen storage system, and the left air deflector is flush with the left closing plate, and the right air deflector is flush with the right closing plate.

[0010] Furthermore, the stack heat dissipation system includes a radiator and a plurality of cooling fans, and the radiator is located in front of the cooling fans.

[0011] Furthermore, it further includes a heat dissipation bracket. The stack heat dissipation system is installed on the heat dissipation bracket, and the heat dissipation bracket is fixed on the hydrogen storage system.

[0012] Furthermore, a plurality of ventilation openings are respectively arranged on the left sealing plate and the right sealing plate.

[0013] Furthermore, the heat dissipation bracket is a stamping and bending part or a casting, and the heat dissipation bracket is fixed at the rear side of the hydrogen storage system through a bolt assembly;

[0014] The stack heat dissipation system is installed on the heat dissipation bracket through rubber shock-absorbing parts.

[0015] Furthermore, it further includes an expansion water tank for the stack heat dissipation system, and the expansion water tank for the stack heat dissipation system is arranged at the rear side of the stack heat dissipation system.

[0016] Furthermore, the distance range between the hydrogen storage system and the cab is 75 - 85 mm.

[0017] A hydrogen fuel vehicle includes the above-mentioned component layout structure on the frame of the hydrogen fuel tractor.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In this solution, the stack heat dissipation system is arranged at the rear (rear side) of the hydrogen storage system, reducing the strength requirement for the hydrogen storage system and the weight of the hydrogen storage system; compared with the prior art, the cab side air deflector structure and the cab top air deflector structure are also cancelled, and an air deflector structure is arranged at the rear side of the hydrogen storage system, reducing the weight and cost of the whole vehicle and the height of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the component layout structure on the frame of a hydrogen fuel tractor in the prior art;

[0022] Figure 2 It is a schematic diagram of the component layout structure on the frame of the hydrogen fuel tractor of the present invention.

[0023] Figure 1 In:

[0024] 1 - Cab side fairing structure; 2 - Cab top fairing structure; 3 - Pipe of the fuel cell cooling system; 4 - Fuel cell cooling system; 5 - Expansion tank; 6 - Hydrogen storage system.

[0025] Figure 2 In:

[0026] 11 - Cab; 12 - Hydrogen storage system; 13 - Expansion tank; 14 - Right fairing; 15 - Fuel cell cooling system; 16 - Cooling fan; 17 - Cooling bracket; 18 - Vehicle turning radius; 19 - Left fairing; 20 - Left closing plate. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention 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 should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0031] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] Embodiment 1

[0035] This embodiment provides a component layout structure on the frame of a hydrogen fuel tractor, including a cab 11, a hydrogen storage system 12, a stack cooling system 15, and a deflector structure. The cab 11 is arranged at the front upper position of the vehicle (the position of the cab 11 remains unchanged compared with the prior art), and the cab 11 is fixed above the front of the whole vehicle and above the first axle, and is connected to the chassis through four-point suspension.

[0036] For the convenience of description, the following azimuth definitions are made here: the front end of the vehicle is the forward direction, the rear end is the rearward direction, the left end is the leftward direction, and the right end is the rightward direction, so as to facilitate the following description of the front, rear, left, and right.

[0037] The hydrogen storage system 12 is arranged on the frame and behind the cab 11. The distance between the hydrogen storage system 12 and the cab 11 ranges from 75 to 85 mm. The hydrogen storage system 12 can be arranged at a position about 80 mm (such as 80 mm) behind the cab 11, so as not to affect the flipping of the cab 11 and be as close as possible. The hydrogen storage system 12 has been moved forward compared with the prior art solution, making the front axle load of the vehicle higher, the climbing performance better, and increasing the turning radius. The turning radius 18 of the vehicle is shown as Figure 2 shown (the turning radius 18 of the vehicle refers to the trajectory swept by the front turning radius of the vehicle).

[0038] The hydrogen storage system 12 is fixed to the frame assembly through brackets, and no other components are placed on its top. Its interior is a hydrogen cylinder and a hydrogen cylinder bearing structure, and the hydrogen cylinder can be horizontally or longitudinally arranged.

[0039] The hydrogen storage system 12 of a hydrogen fuel vehicle is a key device for safely storing, transporting, and managing hydrogen. Its core function is to ensure a stable supply of hydrogen during vehicle operation while taking into account efficiency and safety.

[0040] The fuel cell cooling system 15 is arranged at the rear side of the hydrogen storage system 12, which reduces the height of the whole vehicle. At the same time, it can also reduce the strength requirements for the hydrogen storage system 12 and reduce the weight of the hydrogen storage system 12.

[0041] In this solution, compared with the prior art, the side air deflector structure and the top air deflector structure of the cab 11 are also cancelled, and an air deflector structure is arranged at the rear side of the hydrogen storage system 12, reducing the weight and cost of the whole vehicle and lowering the height of the whole vehicle.

[0042] Specifically, the air deflector structure includes a left air deflector 19 and a right air deflector 14. The left air deflector 19 and the right air deflector 14 are respectively arranged at the left and right ends at the rear side of the hydrogen storage system 12. Left sealing plates 20 and right sealing plates are respectively arranged on the left and right sides of the hydrogen storage system 12. The left sealing plates 20 and the right sealing plates both play a role in guiding the air flow, reducing the air resistance of the whole vehicle, and the left air deflector 19 is flush with the left sealing plate 20, and the right air deflector 14 is flush with the right sealing plate.

[0043] In this embodiment, the fuel cell cooling systems 15 are respectively arranged at the left and right ends at the rear side of the hydrogen storage system 12. The two fuel cell cooling systems 15 are arranged laterally, and this arrangement method will not affect the turning radius 18 of the vehicle.

[0044] The fuel cell cooling system 15 includes a radiator and a plurality of cooling fans 16, and the radiator is located in front of the cooling fans 16.

[0045] The cooling bracket 17 of the fuel cell cooling system 15 is fixed on the rear vertical surface of the hydrogen storage system 12. The fuel cell cooling system 15 and the air deflector structure are fixed thereon, that is, the fuel cell cooling system 15 is fixed on the cooling bracket 17. One end of the cooling bracket 17 is fixed at the rear part of the hydrogen storage system 12, and the other end is connected and fixed to the left air deflector 19 or the right air deflector 14. The cooling bracket 17 of the fuel cell cooling system 15 can be a stamping and bending part or a casting, and is fixed on the rear part of the hydrogen storage system 12 through bolt assemblies; fixing hole positions for connecting with the left air deflector 19 or the right air deflector 14 are reserved on the cooling bracket 17.

[0046] The fuel cell cooling system 15 can be fixed on the cooling bracket 17 through rubber shock-absorbing parts and is arranged laterally at the rear of the hydrogen storage system 12 to ensure that the turning of the trailer is not affected. Among them, the radiator of the fuel cell cooling system 15 is at the front position and the cooling fans 16 are at the rear position, so that the radiator can better receive the side wind. The radiator is in the front and the cooling fans 16 are at the rear, which is convenient for the maintenance and repair of the cooling fans 16 and has better accessibility.

[0047] The expansion tank 13 of the fuel cell stack cooling system 15 is fixed at the rear side of the hydrogen storage system 12. Compared with the existing solution of arranging it on the top of the hydrogen storage system 12, the vehicle height can be reduced, and its arrangement position and quantity can be designed according to actual needs.

[0048] The expansion tank 13 of the fuel cell stack cooling system 15 is fixed on the rear vertical surface of the hydrogen storage system 12, which is lower than the original filling position, easier to observe, and has better operability and maintainability.

[0049] In this embodiment, a plurality of ventilation openings are respectively arranged on the left sealing plate 20 and the right sealing plate. According to the oncoming wind demand of the fuel cell stack cooling system 15, a plurality of ventilation openings are opened, and the structure of the ventilation openings includes but is not limited to Figure 2 the arrangement state in ; by utilizing the oncoming wind, the energy consumption of the cooling fan 16 is saved, the energy consumption of fuel cell stack cooling is reduced, and vehicle energy conservation is achieved.

[0050] The layout structure of components on the frame of a hydrogen fuel tractor. This layout method is to cancel the side air deflector structure and the top air deflector structure of the cab 11, move the hydrogen storage system 12 forward, arrange the fuel cell stack cooling system 15 behind the hydrogen storage system 12, and bias it towards the left and right sides of the vehicle, with an oblique arrangement; and a deflector (left deflector 19 and right deflector 14) is added outside the radiator, and ventilation openings are added to the deflector; a cooling air inlet is also added to the outer plate of the hydrogen storage system 12 in front of the deflector. During the layout process of the fuel cell stack cooling system 15, the radiator is in the front, the cooling fan is arranged at the rear, and the water inlet is towards the rear. This layout method reduces the vehicle height. Since the weight on the top of the hydrogen storage system 12 is changed to the side vertical surface, the strength pressure and weight of the support of the hydrogen storage system 12 are reduced; by canceling the side air deflector structure and the top air deflector structure of the cab 11, moving the hydrogen storage system 12 forward, and side - placing the radiator, the front turning radius of the vehicle is increased, and the wind resistance of the whole vehicle is reduced; the utilization of side wind is increased, and the energy consumption is reduced; the radiator is changed from the top arrangement to the rear side, and the maintenance convenience of the cooling fan 16 and the pipelines of the fuel cell stack cooling system 15 is greatly increased.

[0051] Embodiment 2

[0052] This embodiment provides a hydrogen fuel vehicle, such as a hydrogen fuel truck, which includes the layout structure of components on the frame of the above - mentioned hydrogen fuel tractor.

[0053] The beneficial effects of the technical solution of the present invention are:

[0054] This application mainly provides a layout structure of components on the frame of a hydrogen fuel tractor. By optimizing the component layout, the vehicle weight, cost are reduced, and the trailer matching performance and energy - saving effect are improved, having the following advantages:

[0055] 1. Eliminate the side fairing structure on the cab 11 side and the top fairing structure on the cab 11: For traditional tractors, in order to reduce wind resistance, fairings are installed on both sides and the top of the cab 11. However, these fairings increase the weight and cost of the whole vehicle. The present invention eliminates these fairings, thereby reducing the weight and cost of the whole vehicle, and at the same time reducing the height of the whole vehicle.

[0056] 2. Adjust the position of the fuel cell cooling system 15: The original fuel cell cooling system 15 was usually arranged on the top of the hydrogen storage system 12, which required strengthening the bracket strength of the hydrogen storage system 12, increasing the weight and cost. Now the fuel cell cooling system 15 is arranged on the left and right sides behind the hydrogen storage system 12, which reduces the requirement for the strength of the hydrogen storage system 12, thereby reducing the weight and cost of the hydrogen storage system 12.

[0057] 3. Move the hydrogen storage system 12 forward: By eliminating the side fairing structure and the top fairing structure on the cab 11, the hydrogen storage system 12 can be moved forward to a position about 80 mm away from the cab 11. This arrangement not only makes the front axle load higher, improving the climbing performance, but also increases the available turning radius of the trailer.

[0058] 4. Increase the utilization of side wind: Ventilation openings are added to the left sealing plate 20, the right sealing plate of the hydrogen storage system 12, and the outer fairing of the fuel cell cooling system 15. These ventilation openings allow the side wind to enter and act on the fuel cell radiator, reducing the power consumption of the cooling fan 16 and achieving the effect of energy saving.

[0059] 5. Facilitate inspection and maintenance: The cooling fan 16 of the fuel cell cooling system 15 is arranged at the rear, close to the trailer, which facilitates the maintenance and repair when the cooling fan 16 fails. The expansion tank 13 is fixed on the rear vertical surface of the cooling system or the hydrogen storage system 12, and the filling position is lower, which is more convenient for observation and maintenance.

[0060] Generally speaking, through the rearrangement of the key components on the hydrogen fuel tractor, this technology not only reduces the weight and cost of the whole vehicle, but also improves the matching performance of the trailer and the energy saving effect of the whole vehicle. These improvements are of great significance for enhancing the overall performance of the hydrogen fuel tractor.

[0061] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A component arrangement structure on a hydrogen fuel tractor frame, comprising a cab (11), a hydrogen storage system (12), a stack cooling system (15), and a guide plate structure, characterized in that: The cab (11) is arranged at the upper front position of the vehicle, the hydrogen storage system (12) is arranged on the vehicle frame and located at the rear side of the cab (11), the stack cooling system (15) is arranged at the rear side of the hydrogen storage system (12), and the guide plate structure is arranged at the rear side of the hydrogen storage system (12).

2. The component arrangement structure on the frame of a hydrogen fuel tractor according to claim 1, characterized in that: The stack heat dissipation system (15) is arranged at the left and right ends of the rear side of the hydrogen storage system (12), respectively.

3. The component arrangement structure on the frame of the hydrogen fuel tractor according to claim 1 is characterized in that: The guide plate structure comprises a left guide plate (19) and a right guide plate (14); The left guide plate (19) and the right guide plate (14) are respectively arranged at the left and right ends of the rear side of the hydrogen storage system (12), and a left sealing plate (20) and a right sealing plate are respectively arranged on the left and right sides of the hydrogen storage system (12), and the left guide plate (19) is flush with the left sealing plate (20), and the right guide plate (14) is flush with the right sealing plate.

4. The component arrangement structure on the frame of the hydrogen fuel tractor according to claim 3 is characterized in that: The stack cooling system (15) comprises a radiator and a plurality of cooling fans (16), and the radiator is located in front of the cooling fans (16).

5. The component arrangement structure on the hydrogen fuel tractor frame according to claim 3 is characterized in that: It also includes a heat dissipation bracket (17), the stack heat dissipation system (15) is installed on the heat dissipation bracket (17), and the heat dissipation bracket (17) is fixed on the hydrogen storage system (12).

6. The component arrangement structure on the frame of the hydrogen fuel tractor according to claim 3 is characterized in that: The left sealing plate (20) and the right sealing plate are respectively provided with a plurality of ventilation holes.

7. The component arrangement structure on the hydrogen fuel tractor frame according to claim 5, characterized in that: The heat dissipation bracket (17) is a stamped and bent part or a casting, and the heat dissipation bracket (17) is fixed to the rear side of the hydrogen storage system (12) by a bolt assembly; The stack heat dissipation system (15) is mounted on the heat dissipation bracket (17) via a rubber shock-absorbing member.

8. The component arrangement structure on the hydrogen fuel tractor frame according to claim 1, characterized in that: It also includes an expansion water tank (13) of the stack cooling system (15), wherein the expansion water tank (13) of the stack cooling system (15) is arranged on the rear side of the stack cooling system (15).

9. The component arrangement structure on the hydrogen fuel tractor frame according to claim 1, characterized in that: The distance between the hydrogen storage system (12) and the cab (11) ranges from 75 to 85 mm.

10. A hydrogen fuel vehicle, characterized in that: The invention comprises a component arrangement structure on a hydrogen fuel tractor frame according to any one of claims 1 to 9.

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