Whole vehicle arrangement structure of fuel cell tractor

Abstract

The utility model provides a whole vehicle arrangement structure of a fuel cell tractor, which comprises a frame, a front suspension arranged at the front end part of the frame and a rear suspension arranged at the rear end part of the frame; a cab installed at the front end of the frame; the hydrogen supply system is arranged on the frame, is positioned between the front suspension and the rear suspension and is close to the cab; the power battery is arranged at the bottom of the frame, is positioned between the front suspension and the rear suspension and is far away from the cab; the fuel cell heat dissipation system is arranged at the top of the hydrogen supply system, and an installation area used for installing high-voltage and low-voltage electric devices is formed in the space, located between the cab and the power cell, below the hydrogen supply system. Wherein the high-low voltage electric device comprises an integrated controller, a charging socket, electric accessories, a battery high-voltage box and a brake air compressor.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile structure design, and in particular relates to a whole vehicle layout structure of a fuel cell tractor. Background Art

[0002] Against the backdrop of rapid development of new energy vehicles, fuel cell vehicles, especially fuel cell commercial vehicles, have developed rapidly and have formed good demonstration benefits in many places in China.

[0003] Fuel cell vehicles are essentially "electric-electric hybrid" vehicles. In normal design, they are generally matched with 70-100kwh high-charge and discharge capacity batteries. In actual use, the fuel cell engine is used as the main power source to provide the vehicle with most of the power required for driving, while the power battery is used as auxiliary power, recovering and storing energy while providing auxiliary power when there is a certain amount of high power demand.

[0004] However, due to factors such as the lagging construction of hydrogen refueling infrastructure in some parts of the country, limited hydrogen supply, low fuel cell engine power, and operating costs, many customers hope to develop fuel cell tractors that match large-capacity power batteries of more than 200kwh, which can use the power battery as the main power source and the fuel cell as the auxiliary power source in actual applications. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a vehicle layout structure of a fuel cell tractor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a whole vehicle layout structure of a fuel cell tractor, which has the following characteristics: a frame, a front end portion of which is provided with a front suspension, and a rear end portion of which is provided with a rear suspension; a cab, which is installed at the front end portion of the frame; a hydrogen supply system, which is arranged on the frame, located between the front suspension and the rear suspension and close to the cab; a power battery, which is arranged at the bottom of the frame, located between the front suspension and the rear suspension and away from the cab; and a fuel cell heat dissipation system, which is arranged on the top of the hydrogen supply system, wherein the space below the hydrogen supply system and between the cab and the power battery is formed as an installation area for installing high and low voltage electrical components.

[0008] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following features: wherein the hydrogen supply system is a double-row bottle group structure.

[0009] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following feature: a metal partition is provided between the fuel cell heat dissipation system and the hydrogen supply system.

[0010] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following features: wherein the high and low voltage electrical components include an integrated controller, a charging socket, electrical accessories, a battery high voltage box and a brake air compressor.

[0011] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following feature: wherein, the integrated controller is arranged on one side of the installation area.

[0012] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following feature: wherein the charging socket includes a single charging socket and / or a double charging socket.

[0013] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following features: wherein the electrical accessories include one or more of a fan step-down DC, a battery PTC, a battery low-voltage BMS, and a low-voltage battery.

[0014] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following feature: the battery high-voltage box and the brake air compressor are arranged in an upper and lower arrangement on the other side of the installation area.

[0015] The whole vehicle layout structure of the fuel cell tractor provided by the present invention may also have the following feature: wherein the capacity of the power battery is above 200 kWh.

[0016] Compared with the existing technology, the advantages of the present invention are: through modular design and reasonable arrangement of various core key systems, it can be equipped with large-capacity power batteries while ensuring pure hydrogen driving range, meeting the vehicle usage needs of end customers due to difficulties in hydrogen refueling and high operating costs of pure hydrogen driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall vehicle layout structure of a fuel cell tractor in an embodiment of the present utility model; and

[0018] Figure 2 It is a schematic diagram of the overall vehicle layout structure of a fuel cell tractor in an embodiment of the present utility model. DETAILED DESCRIPTION

[0019] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0020] <Example>

[0021] refer to Figure 1 and Figure 2 The whole vehicle layout structure of the fuel cell tractor provided by the present invention includes: a frame 11, a cab 1, a hydrogen supply system 2, a power battery 7, a fuel cell cooling system 3 and a whole vehicle chassis system 12.

[0022] A front suspension is provided at the front end portion of the vehicle frame 11 , and a rear suspension is provided at the rear end portion thereof.

[0023] The cab 1 is a conventional cab, mounted on the front end of the frame. Of course, the cab 1 can be equipped with an optional air deflector according to customer needs.

[0024] The hydrogen supply system 2 is mounted on the vehicle frame 11, between the front and rear suspensions and close to the cab 1. In this embodiment, the hydrogen supply system 2 is a double-row cylinder structure. A variety of hydrogen storage cylinders, such as 7×210L, 4×385L, 5×385L, 4×390L, 5×390L, 4×410L, and 5×410L, can be selected based on customer needs. The system can accommodate hydrogen storage capacities ranging from 1400 to 2050L.

[0025] The power battery 7 is mounted on the bottom of the vehicle frame 11 via a battery frame, between the front and rear suspensions and away from the cab 1. The power battery 7 can be equipped with large single-pack lithium iron phosphate batteries from mainstream brands, matching power batteries with a capacity of 200kWh or more and compatible with mainstream fuel cell systems in the full power range. In this embodiment, CATL 200Ah AD series batteries are used, enabling various power specifications of 232kWh and 263kWh to meet the diverse needs of end users.

[0026] The fuel cell cooling system 3 is installed on top of the hydrogen supply system 2, and is equipped with high- and low-pressure fans of varying specifications and quantities as needed. In this embodiment, a metal partition is installed between the fuel cell cooling system 3 and the hydrogen supply system 2 to provide spatial isolation and prevent hydrogen from escaping to the fans and creating safety risks.

[0027] In this embodiment, the space below the hydrogen supply system 2 and between the cab 1 and the power battery 7 is formed as an installation area for high and low voltage electrical components. These components include an integrated controller (not shown), a charging socket 5, electrical accessories 6, a battery high-voltage box 8, and a brake air compressor 9.

[0028] The integrated controller is set on the left side of the installation area. It mainly includes steering drive control, brake air compressor control, drive motor, DC-DC and other functions. It can match various drive forms such as direct drive motor or electric drive axle; the wiring harness connection method can be straight out or down out.

[0029] The charging socket 5 can be selected to include a single charging socket and / or a dual charging socket according to customer needs.

[0030] The electrical accessories 6 include one or more of a fan step-down DC, a battery PTC, a low-voltage battery management system (BMS), and a low-voltage battery 10. Each accessory is installed in layers based on space requirements. The low-voltage battery 10 can be selected from lead-acid or lithium-ion batteries of varying Ah specifications, depending on customer needs. To ensure reliable hydrogen refueling installation, each low-voltage battery 10 is equipped with a mechanical main power switch, allowing for one-touch power-off during refueling.

[0031] The battery high-voltage box 8 and the brake air compressor 9 are arranged on the other side of the installation area in an up-down arrangement, and the two are connected to the vehicle frame 11 through an integrated bracket. Among them, the battery high-voltage box 8 can match battery high-voltage boxes of different brands and different wiring harness connection forms.

[0032] The vehicle chassis system 12 includes structures such as tires, suspension, fenders, and drive axles. The suspension can be optionally equipped with air suspension or leaf spring suspension, and the drive axle can be a mechanical axle connected by a traditional drive shaft or an electric drive axle structure.

[0033] In this embodiment, according to different configurations and trailer requirements, the vehicle wheelbase range is 3700-4200 mm, the vehicle width range is between 2450-2550 mm, and the vehicle height range is between 3000-4000 mm.

[0034] In this embodiment, the fuel-electric system can be matched with mainstream fuel cell system products in the market between 100-240kw according to demand.

[0035] The above-mentioned embodiments are preferred examples of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A fuel cell tractor vehicle layout structure, characterized in that: include: A vehicle frame, wherein a front end portion is provided with a front suspension, and a rear end portion is provided with a rear suspension; a cab mounted on the front end of the frame; a hydrogen supply system, disposed on the vehicle frame, between the front suspension and the rear suspension and close to the cab; a power battery, arranged at the bottom of the vehicle frame, between the front suspension and the rear suspension and away from the cab; as well as The fuel cell cooling system is arranged on top of the hydrogen supply system. The space below the hydrogen supply system and between the cab and the power battery is formed as an installation area for installing high and low voltage electrical components.

2. The whole vehicle layout structure of the fuel cell tractor according to claim 1, characterized in that: in, The hydrogen supply system is a double-row bottle group structure.

3. The whole vehicle layout structure of the fuel cell tractor according to claim 1 is characterized in that: in, A metal partition is provided between the fuel cell heat dissipation system and the hydrogen supply system.

4. The whole vehicle layout structure of the fuel cell tractor according to claim 1 is characterized in that: in, The high and low voltage electrical components include an integrated controller, a charging socket, electrical accessories, a battery high voltage box and a brake air compressor.

5. The whole vehicle layout structure of the fuel cell tractor according to claim 4 is characterized in that: in, The integrated controller is arranged at one side of the installation area.

6. The whole vehicle layout structure of the fuel cell tractor according to claim 4, characterized in that: in, The charging socket includes a single charging socket and / or a double charging socket.

7. The whole vehicle layout structure of the fuel cell tractor according to claim 4, characterized in that: in, The electrical accessories include one or more of a fan step-down DC, a battery PTC, a battery low-voltage BMS, and a low-voltage battery.

8. The whole vehicle layout structure of the fuel cell tractor according to claim 4, characterized in that: in, The battery high-voltage box and the brake air compressor are arranged in an upper and lower manner on the other side of the installation area.

9. The whole vehicle layout structure of the fuel cell tractor according to claim 1, characterized in that: in, The capacity of the power battery is above 200 kWh.

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