A hydrogen fuel cell logistics light truck overall vehicle layout structure

Abstract

This application relates to the field of new energy vehicle technology, specifically to a vehicle layout structure for a hydrogen fuel cell logistics light truck. The vehicle layout structure includes a frame unit and a power unit. The frame unit includes two parallel longitudinal beams extending along the longitudinal direction of the vehicle, and is connected to the front and rear axles. The power unit includes a hydrogen system, a power battery, and a radiator. The hydrogen system provides power to the power battery, which is located between the two longitudinal beams. The hydrogen system is located on one side of the frame unit, with its length parallel to the extension direction of the longitudinal beams. The other side of the frame unit has a first mounting space, the size of which is no greater than the length of the hydrogen system. An air tank, air compressor, and radiator are all installed in the first mounting space. This logistics light truck layout structure allows for a reasonable arrangement of chassis space, facilitates the maintenance of electrical components, and adapts to diverse market demands.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle technology, and more specifically, to a layout structure of a hydrogen fuel cell logistics light truck. Background Technology

[0002] Hydrogen fuel cell logistics light trucks, as an important component of new energy commercial vehicles, have significant application potential in urban delivery and municipal operations due to their outstanding advantages such as zero emissions, low noise, and long range, becoming a key vehicle type driving the green transformation of the logistics transportation sector. However, the development of modified municipal operation light fuel cell trucks faces bottlenecks due to limitations in chassis space, the number of components, and overall vehicle size. The rationality of their structural layout and the balance of functionality have not yet been effectively achieved, hindering the large-scale application of this type of vehicle.

[0003] In existing technologies, the layout design of light fuel cell trucks generally adopts a scheme where hydrogen systems are suspended on both sides of the chassis, a small-capacity power battery is arranged in the middle, and a radiator and other multi-functional components are centrally located at the rear. For air-brake models, the additional components such as air pumps and air tanks further exacerbate the congestion of the chassis space, resulting in complex maintenance paths for electrical components and poor operational convenience. At the same time, this layout greatly reduces the space for subsequent vehicle modifications or functional additions, and it is difficult to accommodate large-capacity power batteries while meeting the requirement of a pure hydrogen driving range of ≥300km, thus failing to meet the needs of diverse logistics operation scenarios. Utility Model Content

[0004] In view of this, this application provides a layout structure for a hydrogen fuel cell logistics light truck, which aims to improve the problems of crowded chassis space, poor convenience of electrical component maintenance, and low adaptability to diverse logistics operation scenarios in the prior art.

[0005] This application provides a layout structure for a hydrogen fuel cell logistics light truck, including:

[0006] A frame unit includes two parallel longitudinal beams extending along the longitudinal direction of the vehicle, and the frame unit is connected to the front and rear axles of the vehicle; and

[0007] The power unit includes a hydrogen system, a power battery, and a radiator. The hydrogen system is used to provide power to the power battery. The power battery is disposed between the two longitudinal beams. The hydrogen system is disposed on one side of the frame unit. The length direction of the hydrogen system is parallel to the extension direction of the longitudinal beams.

[0008] The other side of the frame unit has a first mounting space, and the size of the first mounting space is not greater than the length of the hydrogen system in the length direction of the hydrogen system; the radiator is mounted in the first mounting space.

[0009] Preferably, the power unit further includes a fuel cell, which is located on the side of the power battery near the front of the vehicle, and the radiator is located on the side of the air pressure braking system near the front of the vehicle, and the radiator is connected to the fuel cell via a cooling pipe.

[0010] Preferably, the overall layout structure of the hydrogen fuel cell logistics light truck also includes a hydraulic lifting tailgate, which is located at the tail end of the two longitudinal beams, and there is a second installation space between the hydraulic lifting tailgate and the rear axle of the vehicle.

[0011] Preferably, the layout structure of the hydrogen fuel cell logistics light truck also includes a multi-functional unit, which is installed in the first installation space.

[0012] Preferably, the overall layout structure of the hydrogen fuel cell logistics light truck also includes a charging base, which is installed in the first installation space.

[0013] Preferably, the overall layout structure of the hydrogen fuel cell logistics light truck also includes a side protection plate, which is installed on the side of the first mounting space away from the frame unit.

[0014] Preferably, the side protective plate includes a heat dissipation plate, which is located on the side of the radiator away from the frame unit, and the heat dissipation plate is provided with multiple heat dissipation and ventilation holes.

[0015] Preferably, the rear axle of the vehicle is an electric drive axle.

[0016] Preferably, the capacity of the power battery is ≥82kWh.

[0017] Compared with existing technologies, the hydrogen fuel cell logistics light truck layout structure provided in this application achieves at least the following beneficial effects:

[0018] In the hydrogen fuel cell logistics light truck layout structure provided in this application, the power battery is located between two longitudinal beams, which can accommodate a large power battery. The hydrogen system is located on one side of the frame unit. In specific implementation, the hydrogen system can take the form of a hydrogen storage tank. The length of the hydrogen system is parallel to the extension direction of the longitudinal beams, which is conducive to further reasonably increasing the length of the hydrogen system so that the hydrogen system can meet the long-distance range requirements of the vehicle. That is, through reasonable layout, this vehicle layout structure can increase the storage space to accommodate a long hydrogen system and power battery. Furthermore, the first mounting space is located on the other side of the chassis unit. Because logistics light trucks are sensitive to the overall vehicle configuration, the dimension of the first mounting space (including the radiator) in the length direction of the hydrogen system is limited to no more than the length of the hydrogen system. This can prevent center offset caused by excessive differences in component lengths on both sides of the chassis unit, thus improving driving stability (especially when turning or under heavy load). At the same time, placing the radiator in the first mounting space reduces the occupation of the rear area of ​​the chassis unit, which helps to solve the problem of crowded chassis space, reserves space for subsequent modification or addition, can adapt to diverse market demands, and also facilitates the maintenance and troubleshooting of the radiator.

[0019] Of course, any product implementing this application need not specifically need to achieve all of the technical effects described above at the same time.

[0020] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0022] Figure 1 The diagram shown is a schematic diagram of the overall layout structure of a hydrogen fuel cell logistics light truck provided in an embodiment of this application;

[0023] Figure 2 The diagram shown is a schematic diagram of the connection between the radiator and the fuel cell in an embodiment of this application;

[0024] Figure 3 The diagram shown is a schematic diagram of the connection of the side protective plate in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 11-Electric drive axle, 100-Frame unit, 110-Longitudinal beam, 200-Power unit, 201-Cooling pipes, 210-Hydrogen system, 220-Power battery, 230-Radiator, 240-Fuel cell, 300-Pneumatic braking system, 310-Air tank, 320-Air compressor, 400-Hydraulic lifting tailgate, 500-Multi-function unit, 600-Charging base, 700-Side protection plate, 701-Avoidance opening structure, 710-Radiator plate, 711-Radiation ventilation hole. Detailed Implementation

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0033] Figure 1 The diagram shown is a schematic diagram of the overall layout structure of a hydrogen fuel cell logistics light truck provided in an embodiment of this application. Figure 2 The diagram shown is a schematic diagram of the connection between the radiator and the fuel cell in an embodiment of this application.

[0034] Please refer to Figure 1 and Figure 2This application provides a hydrogen fuel cell logistics light truck layout structure, including a frame unit 100 and a power unit 200.

[0035] The frame unit 100 includes two parallel longitudinal beams 110, which extend along the front-rear direction of the vehicle. The frame unit 100 is connected to the front axle and rear axle of the vehicle.

[0036] The power unit 200 includes a hydrogen system 210, a power battery 220, and a radiator 230. The hydrogen system 210 provides power to the power battery 220. The power battery 220 is disposed between two longitudinal beams 110. The hydrogen system 210 is disposed on one side of the frame unit 100. The length direction of the hydrogen system 210 is parallel to the extension direction of the longitudinal beams 110. The radiator 230 is connected to the fuel cell 240 through a cooling pipe 201.

[0037] The other side of the frame unit 100 has a first mounting space, and the radiator 230 is mounted in the first mounting space.

[0038] In the hydrogen fuel cell logistics light truck layout structure provided in this embodiment, the power battery 220 is disposed between two longitudinal beams 110, and the space between the two longitudinal beams 110 can accommodate the large-sized power battery 220; the hydrogen system 210 is disposed on one side of the frame unit 100. In specific implementation, the hydrogen system 210 can be in the form of a hydrogen storage tank. The length of the hydrogen system 210 is parallel to the extension direction of the longitudinal beams 110, which is conducive to further reasonably increasing the length of the hydrogen system 210 so that the hydrogen system 210 can meet the long-distance range requirements of the vehicle; that is, through reasonable layout, this vehicle layout structure can increase the storage space to accommodate the long-length hydrogen system 210 and power battery 220. Furthermore, the first installation space is located on the other side of the frame unit 100. Because logistics light trucks are sensitive to the overall vehicle configuration, the dimension of the first installation space (including the radiator) in the length direction of the hydrogen system 210 is limited to not exceeding the length of the hydrogen system 210. This can prevent the center offset caused by the large difference in component length on both sides of the frame unit 100, and improve driving stability (especially when turning or under heavy load). At the same time, arranging the radiator 230 in the first installation space reduces the occupation of the rear area of ​​the frame unit 100, which helps to solve the problem of crowded chassis space, reserves space for subsequent modification or addition, adapts to diverse market demands, and also facilitates the maintenance and troubleshooting of the radiator 230.

[0039] Referring again to 1, in some embodiments, the layout structure of the hydrogen fuel cell logistics light truck also includes a pneumatic braking system 300, which includes an air reservoir 310 and an air compressor 320 connected to the air reservoir 310. The air compressor 320 is used to supply compressed air to the air reservoir 310. Both the air reservoir 310 and the air compressor 320 are installed in a first installation space.

[0040] In this embodiment, the air tank 310 and air compressor 320 are further centrally arranged in the first installation space to ensure a more even weight distribution on the vehicle chassis. This centralized layout also reduces the space occupied at the rear of the frame unit 100, effectively solving the problem of cramped chassis space and reserving space for subsequent modifications or additions, thus adapting to diverse market demands. Furthermore, in this embodiment, the integration of the air tank 310 and air compressor 320 into the same installation space facilitates centralized maintenance and rapid troubleshooting.

[0041] See also, 1 and Figure 2 In some embodiments, the power unit 200 further includes a fuel cell 240, which is located on the side of the power battery 220 near the front of the vehicle, and a radiator 230 is located on the side of the air pressure braking system 300 near the front of the vehicle. The radiator 230 and the fuel cell 240 are connected by a cooling pipe 201.

[0042] In this embodiment, the fuel cell 240 is located on the side of the power battery 220 near the front of the vehicle, and the radiator 230 is located on the side of the air pressure braking system 300 near the front of the vehicle. The two are connected by a cooling pipe 201. This layout brings the radiator 230 and the fuel cell 240 closer together in the front-rear direction of the vehicle, significantly shortening the length of the cooling pipe 201, reducing the tortuosity and energy loss of the cooling pipe 201, and reducing the resistance of the cooling medium during transmission. This improves the heat dissipation speed and heat dissipation uniformity of the fuel cell 240, ensuring that the fuel cell 240 operates stably at a suitable temperature. Furthermore, since both the fuel cell 240 and the radiator 230 are located near the front of the vehicle and on different sides of the frame unit 100 (the fuel cell 240 corresponds to the area between the longitudinal beams 110 where the power battery 220 is located, and the radiator 230 is located in the first mounting space), the cooling pipes 201 can be directly connected along the compact space at the front of the vehicle. This avoids spatial interference with the hydrogen system 210 and the pneumatic braking system 300 when the cooling pipes 201 are arranged over a long distance across both sides of the frame, making the layout of the cooling pipes 201 simpler and more orderly. In addition, the fuel cell 240 is close to the front and at a moderate distance from the power battery 220 in the middle, shortening the power transmission path between the two, reducing power loss, and improving the overall working efficiency of the power unit 200.

[0043] See Figure 1 In some embodiments, the overall layout structure of the hydrogen fuel cell logistics light truck also includes a hydraulic lifting tailgate 400, which is located at the tail end of the two longitudinal beams 110, and has a second installation space between the hydraulic lifting tailgate 400 and the rear axle of the vehicle.

[0044] In this embodiment, the second installation space maintains a reasonable distance between the hydraulic lifting tailgate 400 and the rear axle of the vehicle. The second installation space provides redundant space for the subsequent addition or integration of other functional components (such as spare hydrogen cylinders, tool storage boxes, auxiliary batteries, etc.), which does not affect the normal operation of the hydraulic lifting tailgate 400 and avoids interference with the layout of the power unit 200 and the pneumatic braking system 300 located in the middle area of ​​the frame unit 100. This solves the problem of limited modification caused by the complete occupation of the rear space of traditional light trucks and enhances the adaptability of the whole vehicle to diverse logistics operation scenarios.

[0045] See Figure 1 In some embodiments, the layout structure of the hydrogen fuel cell logistics light truck also includes an all-in-one 500, which is installed in the first installation space.

[0046] In this embodiment, the multi-function 500 (such as a modular component integrating functions like a motor controller, DC / DC converter, and air compressor 320 controller) is installed in the first installation space, integrated with the air tank 310, air compressor 320, and radiator 230 in the same area. This avoids the multi-function 500 occupying the rear of the frame unit 100 or other spaces separately, further compressing the space occupied in non-core areas. This makes the layout on both sides and in the middle of the frame unit 100 more compact, reserving more installation space for core components such as the power battery 220 and hydrogen system 210, and providing favorable conditions for the vehicle's long-distance range requirements. The multi-function 500, along with components such as the air tank 310 and air compressor 320, are concentrated in the first installation space, allowing related electrical harnesses and control lines to be arranged in the same area. This avoids the problem of wiring harnesses and lines crossing and tangling when arranged in a traditional decentralized manner. At the same time, centralized installation makes it easier for maintenance personnel to complete the troubleshooting and maintenance of the multi-function 500 and surrounding components in the same area, reducing the cumbersomeness of cross-area operations and improving the overall vehicle maintenance efficiency.

[0047] See Figure 1 In some embodiments, the hydrogen fuel cell logistics light truck layout structure also includes a charging base 600, which is installed in a first installation space.

[0048] In this embodiment, the charging base 600 is integrated into the first installation space, further saving chassis space and avoiding interference with the layout of core components; it also shortens the distance of the charging harness, reducing the risk of wear and tear. Furthermore, the charging base 600 and the hydrogen system 210 are located on opposite sides of the frame unit 100, physically separated by the longitudinal beam 110, preventing direct contact between electrical components and the hydrogen system 210 during charging and reducing potential safety hazards (such as accidental contact between electrical sparks and hydrogen). The charging base 600 is installed in the first installation space on the outer side of the frame unit 100, allowing users to quickly locate the charging interface when the vehicle is parked, without needing to bend over or crawl under the vehicle. Simultaneously, this area is far from cargo loading and unloading areas (such as the rear), reducing mutual interference with cargo handling during charging and improving the convenience of daily charging.

[0049] Figure 3 The diagram shown is a connection schematic of the side protective plate 700 in an embodiment of this application. See also... Figure 3 In some embodiments, the hydrogen fuel cell logistics light truck layout structure also includes a side protection plate 700, which is installed on the side of the first mounting space away from the frame unit 100.

[0050] In this embodiment, the side guard plate 700 is installed against the outside of the first mounting space without occupying additional chassis space. Furthermore, the side guard plate 700 can isolate external collisions, dust, mud, etc., providing physical protection for the components within the first mounting space, reducing damage caused by external environment or accidental scratches, and improving system reliability. In addition, the side guard plate 700 can reduce the risk of direct contact between personnel and protruding components within the first mounting space (such as the air tank 310 interface and the cooling pipe 201 connector), avoiding collisions with components within the first mounting space during cargo loading and unloading, and enhancing the overall vehicle operation safety. In specific implementations, when necessary, the side guard plate 700 can have an opening structure 701 to provide sufficient installation space for components such as the charging base 600.

[0051] See Figure 1 and Figure 3 In some embodiments, the side guard plate 700 includes a heat dissipation plate 710 located on the side of the radiator 230 away from the frame unit 100. The heat dissipation plate 710 is provided with multiple heat dissipation ventilation holes 711. The heat dissipation ventilation holes 711 can form directional airflow channels to accelerate the air circulation around the radiator 230, helping the radiator 230 to quickly dissipate the heat generated by the operation of the fuel cell 240, avoiding poor heat dissipation problems caused by the side guard plate 700 blocking the heat, and ensuring that the fuel cell 240 operates stably at a suitable temperature.

[0052] See Figure 1 In some embodiments, the rear axle of the vehicle is an electric drive axle 11.

[0053] In this embodiment, the electric drive axle 11 integrates the drive motor, reducer and other components into the rear axle, eliminating the need for traditional drive shafts, gearboxes and other components, reducing the space occupied in the middle and bottom of the frame unit 100, and freeing up more installation space for core components such as the hydrogen system 210 and the power battery 220, which is especially suitable for the compact chassis layout of light trucks.

[0054] See Figure 1 In some embodiments, the capacity of the hydrogen system 210 is ≥385L. This capacity design matches the structure of the hydrogen system 210 arranged along the length of the longitudinal beam 110. The capacity of the hydrogen system 210 is not less than 385L, which can store sufficient hydrogen. Sufficient hydrogen storage can stably supply hydrogen to the fuel cell 240, ensuring that the fuel cell 240 continuously and efficiently generates electricity, providing stable power for vehicle operation, avoiding power interruption due to insufficient hydrogen, and ensuring the continuity of the transportation process. Combined with the power generation efficiency of the hydrogen fuel cell, it can meet the long-distance transportation needs of logistics light trucks, especially suitable for multi-trip transportation scenarios in urban distribution logistics, reducing the number of hydrogen refuelings and improving operational efficiency.

[0055] See Figure 1 In some embodiments, the capacity of the power battery 220 is ≥82kWh. This capacity can store sufficient electrical energy to assist the fuel cell 240 in supplying power during peak power requirements such as vehicle start-up and acceleration, preventing overload of the fuel cell 240. It can also provide emergency power in case of short-term failure of the fuel cell 240, ensuring driving stability. The high-capacity power battery 220 can work with the hydrogen system 210 to achieve longer driving range. In areas where hydrogen refueling stations are inconvenient, it can rely on the power battery 220 to complete transportation tasks, enhancing the vehicle's adaptability to complex logistics scenarios. Furthermore, the large-capacity battery can more fully store the electrical energy recovered by the braking energy recovery system, reducing energy waste, improving energy utilization efficiency, and helping to reduce operating costs.

[0056] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A layout structure for a hydrogen fuel cell logistics light truck, characterized in that, include: The frame unit includes two parallel longitudinal beams that extend along the longitudinal direction of the vehicle, and the frame unit is connected to the front axle and rear axle of the vehicle. and The power unit includes a hydrogen system, a power battery, and a radiator. The hydrogen system is used to provide power to the power battery. The power battery is disposed between the two longitudinal beams. The hydrogen system is disposed on one side of the frame unit. The length direction of the hydrogen system is parallel to the extension direction of the longitudinal beams. The other side of the frame unit has a first mounting space, and the size of the first mounting space is not greater than the length of the hydrogen system in the length direction of the hydrogen system; the radiator is mounted in the first mounting space.

2. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, It also includes a pneumatic braking system, which includes an air reservoir and an air compressor connected to the air reservoir. The air compressor is used to supply compressed air to the air reservoir. Both the air reservoir and the air compressor are installed in the first installation space.

3. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, The power unit also includes a fuel cell, which is located on the side of the power battery closer to the front of the vehicle. The radiator is located on the side of the air pressure braking system closer to the front of the vehicle, and the radiator is connected to the fuel cell via cooling pipes.

4. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, It also includes a hydraulic lifting tailplate, which is located at the tail end of the two longitudinal beams and has a second installation space between the hydraulic lifting tailplate and the rear axle of the vehicle.

5. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, It also includes an all-in-one unit, which is installed in the first installation space.

6. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, It also includes a charging dock, which is installed in the first mounting space.

7. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, It also includes a side guard plate, which is installed on the side of the first mounting space away from the frame unit.

8. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, The side protective plate includes a heat dissipation plate, which is located on the side of the radiator away from the frame unit, and the heat dissipation plate is provided with multiple heat dissipation and ventilation holes.

9. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, The rear axle of the vehicle is an electric drive axle.

10. The overall layout structure of the hydrogen fuel cell logistics light truck as described in claim 1, characterized in that, The capacity of the power battery is ≥82kWh.

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