Fuel cell tractor

Abstract

The utility model discloses a fuel cell tractor, and relates to the technical field of vehicles. The fuel cell tractor comprises a frame, a cab and a hydrogen supply system, the cab and the hydrogen supply system are arranged above the frame, a driving system and a fuel cell engine are arranged at the bottom of the frame, power cell modules are arranged on the two sides of the frame, the fuel cell engine, the power cell modules and the driving system are electrically connected in sequence, and the hydrogen supply system transmits hydrogen to the fuel cell engine. The fuel cell engine converts hydrogen into electric energy and transmits the electric energy to the power battery module, and the power battery module transmits the electric energy to the driving system. The maintenance convenience of the power battery can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a fuel cell tractor. BACKGROUND

[0002] The fuel cell tractor is a kind of commercial vehicle which uses fuel cell as the main power source. Its basic principle is to use the electrochemical reaction of hydrogen and oxygen in the fuel cell stack to generate electric energy to drive the vehicle. Specifically, hydrogen is oxidized at the anode, releasing electrons, which pass through the external circuit to the cathode, while hydrogen ions pass through the electrolyte to the cathode to react with oxygen to generate water. The electric energy generated in this process is used to drive the electric motor, thereby driving the tractor to move.

[0003] In the prior art, the hydrogen tank and the battery pack are arranged on the chassis, which leads to complex layout of the chassis, and is not conducive to vehicle assembly and maintenance. The power battery is arranged on the inside of the frame, which is not convenient for maintenance of the power battery. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a fuel cell tractor which can improve the convenience of power battery maintenance.

[0005] The embodiment of the present application is implemented as follows:

[0006] The embodiment of the present application provides a fuel cell tractor, which comprises a frame, a cab arranged above the frame and a hydrogen supply system, the bottom of the frame is provided with a driving system and a fuel cell engine, the two sides of the frame are provided with power battery modules, the fuel cell engine, the power battery modules and the driving system are electrically connected in sequence, the hydrogen supply system transmits hydrogen to the fuel cell engine, the fuel cell engine converts hydrogen into electric energy and transmits it to the power battery modules, and the power battery modules transmit electric energy to the driving system.

[0007] Optionally, as an implementable way, first auxiliary supports and second auxiliary supports are arranged on the two sides of the tail of the frame, respectively, an integrated control assembly is arranged on the first auxiliary support, the driving system and the fuel cell engine are controlled through the integrated control assembly, and an integrated cooling unit is arranged on the second auxiliary support, the power battery modules, the driving system and the cab are integrated refrigerated through the integrated cooling unit.

[0008] Optionally, as an implementable way, a power battery control assembly electrically connected with the power battery modules is further arranged on the second auxiliary support, and the power battery modules are controlled through the power battery control assembly.

[0009] Optionally, as an implementable mode, a fuel cell cooling system is arranged above the hydrogen supply system, and the fuel cell cooling system dissipates heat of the fuel cell engine.

[0010] Optionally, as an implementable mode, the hydrogen supply system comprises a mounting frame and a hydrogen bottle arranged in the mounting frame, and the hydrogen bottle is in communication with the fuel cell engine.

[0011] Optionally, as an implementable mode, the hydrogen supply system further comprises a fuel cell air inlet assembly in communication with the fuel cell engine, and the fuel cell air inlet assembly comprises an air inlet pipe and a pre-filter and an air filter arranged on the air inlet pipe, and the pre-filter and the air filter are arranged on the mounting frame.

[0012] Optionally, as an implementable mode, the vehicle frame is further provided with a brake system, and the brake system comprises an electric air compressor assembly, a drying tank, an air cylinder and a brake assembly in sequence, and the electric air compressor assembly is used to convert air in the external environment into compressed air and then transmit the compressed air to the drying tank for drying, the compressed air processed by the drying tank is transmitted to the air cylinder, and the air cylinder is used to deliver compressed air to the brake assembly.

[0013] Optionally, as an implementable mode, the electric air compressor assembly is arranged on the first auxiliary support.

[0014] Optionally, as an implementable mode, the drive system is an integrated electric drive axle system.

[0015] Optionally, as an implementable mode, the hydrogen supply system further comprises a low-voltage storage battery, and the low-voltage storage battery is arranged at the tail portion and is used to provide power for low-voltage electrical equipment of the vehicle.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The fuel cell tractor of the application comprises a vehicle frame, a cab arranged above the vehicle frame and a hydrogen supply system, the bottom of the vehicle frame is provided with a driving system and a fuel cell engine, the two sides of the vehicle frame are provided with power battery modules, the fuel cell engine, the power battery modules and the driving system are electrically connected in sequence, the hydrogen supply system transmits hydrogen to the fuel cell engine, the fuel cell engine converts the hydrogen into electric energy and transmits the electric energy to the power battery modules, and the power battery modules transmit the electric energy to the driving system. By arranging the cab and the hydrogen supply system above the vehicle frame and arranging the fuel cell engine and the driving system at the bottom of the vehicle frame, the degree of disorder of the chassis parts is reduced, the vehicle assembly process is smoother, the workers can operate more conveniently, the assembly time is greatly shortened, and the production cost is reduced. Meanwhile, when maintaining, the maintenance personnel can observe the chassis part conditions more clearly, easily troubleshoot and replace the parts, and the maintenance efficiency is improved. Convenient power battery maintenance: the power battery modules are arranged on the two sides of the vehicle frame, which completely changes the inconvenience caused by the traditional inside arrangement. The maintenance personnel do not need to disassemble a large number of internal parts of the vehicle frame, and can directly detect, maintain and repair the power battery modules from the two sides of the vehicle, the operation space is wide, the maintenance time and labor cost are greatly saved, the maintainability of the vehicle is improved, the vehicle downtime caused by difficult power battery maintenance is reduced, and the operation efficiency of the vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 Structure schematic diagram of the fuel cell tractor provided by the embodiment of the application;

[0020] Figure 2 Structure schematic diagram of the fuel cell tractor provided by the embodiment of the application;

[0021] Figure 3 Structure schematic diagram of the first auxiliary support in the fuel cell tractor provided by the embodiment of the application;

[0022] Figure 4 Structure schematic diagram of the second auxiliary support in the fuel cell tractor provided by the embodiment of the application;

[0023] Figure 5 Structure schematic diagram of the fuel cell tractor provided by the embodiment of the application.

[0024] Icon: 100 - fuel cell tractor; 110 - vehicle frame; 111 - low voltage battery; 120 - cab; 130 - hydrogen supply system; 140 - drive system; 150 - fuel cell engine; 151 - air intake pipe; 152 - pre-filter; 153 - air filter; 160 - power battery module; 170 - first auxiliary support; 171 - integrated control assembly; 172 - electric air compressor assembly; 180 - second auxiliary support; 181 - integrated cooling assembly; 182 - power battery control assembly; 190 - fuel cell cooling system. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work fall within the scope of protection of the present application.

[0027] It should be noted that: similar reference numerals and letters represent 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 the subsequent drawings. In addition, the terms "first", "second", "third" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Please refer to Figure 1The embodiment provides a fuel cell tractor 100, which comprises a vehicle frame 110, a cab 120 arranged above the vehicle frame 110 and a hydrogen supply system 130, the bottom of the vehicle frame 110 is provided with a driving system 140 and a fuel cell engine 150, and the two sides of the vehicle frame 110 are provided with power battery modules 160, the fuel cell engine 150, the power battery modules 160 and the driving system 140 are sequentially electrically connected, the hydrogen supply system 130 transmits hydrogen to the fuel cell engine 150, the fuel cell engine 150 converts the hydrogen into electric energy and transmits the electric energy to the power battery modules 160, and the power battery modules 160 transmit the electric energy to the driving system 140.

[0030] Specifically, the fuel cell tractor 100 provided by the application comprises the vehicle frame 110, the cab 120 arranged above the vehicle frame 110 and the hydrogen supply system 130, the bottom of the vehicle frame 110 is provided with the driving system 140 and the fuel cell engine 150, the driving core components are arranged in the bottom of the vehicle frame 110, the bottom space utilization is optimized, and unnecessary component interference is reduced. The two sides of the vehicle frame 110 are provided with the power battery modules 160, the unique arrangement breaks the limitation that the power battery is arranged on the inner side of the vehicle frame 110. The fuel cell engine 150, the power battery modules 160 and the driving system 140 are sequentially electrically connected, forming an efficient electric energy transmission link. The hydrogen supply system 130 transmits hydrogen to the fuel cell engine 150, the hydrogen serves as a fuel source and provides initial energy for the whole power system. The fuel cell engine 150 converts the hydrogen into electric energy and transmits the electric energy to the power battery modules 160, in the process, the fuel cell engine 150 utilizes the electrochemical reaction of hydrogen and oxygen in the fuel cell stack in the fuel cell engine 150, hydrogen is oxidized in the anode, releases electrons, the electrons reach the cathode through an external circuit, and hydrogen ions reach the cathode through an electrolyte and react with oxygen to generate water, and the generated electric energy is accurately transmitted to the power battery modules 160 for storage or directly used for driving. The power battery modules 160 transmit the electric energy to the driving system 140, and the driving system 140 drives the wheels of the tractor to rotate after receiving the electric energy, so that the vehicle runs.

[0031] The fuel cell tractor 100 of the present application comprises a vehicle frame 110, a cab 120 arranged above the vehicle frame 110, and a hydrogen supply system 130, the bottom of the vehicle frame 110 is provided with a drive system 140 and a fuel cell engine 150, the two sides of the vehicle frame 110 are provided with power battery modules 160, the fuel cell engine 150, the power battery modules 160 and the drive system 140 are sequentially electrically connected, the hydrogen supply system 130 transmits hydrogen to the fuel cell engine 150, the fuel cell engine 150 converts the hydrogen into electric energy and transmits it to the power battery modules 160, and the power battery modules 160 transmit electric energy to the drive system 140. By arranging the cab 120 and the hydrogen supply system 130 above the vehicle frame 110, and arranging the fuel cell engine 150 and the drive system 140 at the bottom of the vehicle frame 110, the degree of disorder of the chassis parts is reduced, the vehicle assembly process is smoother, the workers can operate more conveniently, the assembly time is greatly shortened, and the production cost is reduced. At the same time, when maintaining, the maintenance personnel can more clearly observe the chassis part condition, easily troubleshoot and replace parts, and improve the maintenance efficiency. Convenient power battery maintenance: arranging the power battery modules 160 on both sides of the vehicle frame 110 completely changes the inconvenience caused by the traditional inside arrangement. The maintenance personnel no longer need to disassemble a large number of internal parts of the vehicle frame 110, but can directly detect, maintain and maintain the power battery modules 160 from both sides of the vehicle, the operation space is wide, the maintenance time and labor cost are greatly saved, the maintainability of the vehicle is improved, the vehicle downtime caused by difficult power battery maintenance is reduced, and the operation efficiency of the vehicle is improved.

[0032] In an embodiment of the present application, as shown in Figure 2 、 Figure 3 and Figure 4 , first auxiliary supports 170 and second auxiliary supports 180 are arranged on both sides of the tail of the vehicle frame 110, the first auxiliary supports 170 are provided with integrated control assemblies 171, the drive system 140 and the fuel cell engine 150 are controlled through the integrated control assemblies 171, the second auxiliary supports 180 are provided with integrated cooling units 181, and the power battery modules 160, the drive system 140 and the cab 120 are integrated refrigerated through the integrated cooling units 181.

[0033] By integrating the functions of the control drive system 140 and the fuel cell engine 150, the electrical wiring complexity of the vehicle is greatly simplified, the line fault hidden danger is reduced, and the later system debugging and upgrading are facilitated. When facing drive or engine related problems, maintenance personnel only need to focus on the integrated control assembly 171 at the first auxiliary support 170 to quickly troubleshoot the fault point, greatly shorten the maintenance time, reduce the maintenance cost, and improve the overall reliability of the vehicle. The integrated cooling unit 181 on the one hand guarantees the stable operation of the power battery and the drive system 140, avoids problems such as efficiency reduction and component damage caused by overheating, and improves the continuous operation capability and power output stability of the vehicle; on the other hand, it provides a comfortable environment for the driver, helps to reduce the risk of fatigue driving, and improves driving safety, which indirectly provides protection for efficient operation of the logistics transportation industry. The integrated control assembly 171 and the integrated cooling unit 181 are installed on the first auxiliary support 170 and the second auxiliary support 180 to realize stable installation of the integrated control assembly 171 and the integrated cooling unit 181.

[0034] In an embodiment of the present application, as shown in Figure 2 and Figure 4 , the second auxiliary support 180 is also provided with a power battery control assembly 182 electrically connected with the power battery module 160, and the power battery module 160 is controlled through the power battery control assembly 182. By controlling the power battery module 160 through the power battery control assembly 182, it is ensured that each battery monomer can operate in a safe and efficient state. This not only prolongs the overall service life of the battery and reduces the battery replacement cost, but also improves the energy utilization efficiency of the battery through precise charging and discharging control, making the vehicle's cruising range more stable and reliable, and providing a solid power guarantee for long-distance transportation and other application scenarios. The second auxiliary support 180 integrates and installs the power battery control assembly 182 and the integrated cooling unit 181 to simplify the chassis layout.

[0035] In an embodiment of the present application, as shown in Figure 1 , the hydrogen supply system 130 is provided with a fuel cell cooling system 190 above the hydrogen supply system 130, and the fuel cell cooling system 190 cools the fuel cell engine 150. Ensure the stability of the performance of the fuel cell engine 150. Effective cooling measures are the key to the efficient operation of the fuel cell engine 150. Through the special fuel cell cooling system 190, the engine temperature can be precisely controlled, the electrochemical reaction efficiency can be improved, the energy loss can be reduced, the service life of the engine can be prolonged, and the stability of hydrogen supply and electrical energy conversion can be ensured, providing core power support for continuous and reliable operation of the vehicle, and reducing the probability of failure caused by overheating of the engine.

[0036] In an embodiment of the present application, as shown in Figure 1As shown, the hydrogen supply system 130 includes a mounting frame and a hydrogen cylinder arranged in the mounting frame, which is in communication with the fuel cell engine 150. The lightweight mounting frame reduces the impact of vibration and collision on the hydrogen cylinder during vehicle driving, reducing the safety risk. The high-quality hydrogen cylinder material ensures long-term stable storage of hydrogen, and the precise pipeline control component realizes fine management of hydrogen supply, improves hydrogen utilization rate, and ensures the continuous and stable operation of the fuel cell engine 150, providing a reliable power source for the vehicle and helping the new energy traction vehicle to promote application in the commercial transportation field.

[0037] In an embodiment of the present application, as shown in Figure 1 and Figure 5 The fuel cell air inlet assembly in communication with the fuel cell engine 150 includes an air inlet pipe 151 and a pre-filter 152 and an air filter 153 arranged on the air inlet pipe 151, and the pre-filter 152 and the air filter 153 are arranged on the mounting frame. Through the double filtration mechanism, the damage of impurities in the air to the fuel cell engine 150 is greatly reduced, the risk of catalyst poisoning in the electrochemical reaction is reduced, the service life of the engine is prolonged, and at the same time, the engine is always operated in a clean air environment, maintaining a high electrochemical reaction efficiency, stable output power, and improving the vehicle power performance, laying a solid foundation for long-term stable operation of the vehicle.

[0038] In an embodiment of the present application, as shown in Figure 2 and Figure 3 The vehicle frame 110 is also provided with a braking system, which includes an electric air compressor assembly 172, a drying tank, an air cylinder and a braking assembly connected in sequence. The air compressor assembly 172 converts the external air into compressed air and transmits it to the drying tank for drying. The compressed air treated by the drying tank is transmitted to the air cylinder, and the compressed gas is delivered to the braking assembly through the air cylinder.

[0039] The braking system composed of the electric air compressor assembly 172, the drying tank, the air cylinder and the braking assembly provides the vehicle with stable and efficient braking capability, which can ensure the vehicle to stop quickly and smoothly in emergency braking or normal deceleration scene, effectively avoiding traffic accidents. The dehumidification function of the drying tank prolongs the service life of the braking system components, reduces the maintenance frequency, reduces the operating cost, and ensures the safe driving of the vehicle in various road conditions.

[0040] Further, the electric air compressor assembly 172 is arranged on the first auxiliary support 170.

[0041] In an embodiment of the present application, as shown in Figure 1 and Figure 2As shown, the drive system 140 is an integrated electric drive axle system. The drive system 140 selects an integrated electric drive axle system, which is an advanced architecture that highly integrates key components such as electric motors, transmissions, axles, etc. The electric motor adopts high-efficiency permanent magnet synchronous motor technology, has characteristics such as high power density and high efficiency, and can quickly respond to the power demand of the vehicle, output strong torque in an instant to push the vehicle to start and accelerate. The transmission integrates multi-gear shifting function, intelligently switches gears according to vehicle speed, load and other working conditions, optimizes power matching, ensures that the motor always works in the high-efficiency interval, and improves energy utilization. The axle part is responsible for smoothly transmitting power to the wheels, and has good load-carrying capacity to meet the heavy load demand of the fuel cell traction vehicle 100.

[0042] In an embodiment of the present application, as shown in Figure 1 and Figure 2 The low-voltage storage battery 111 is located at the tail and provides power for the low-voltage electrical equipment of the vehicle. The low-voltage storage battery 111 supplies power to a series of low-voltage electrical equipment of the vehicle, such as the instrument panel, lighting system, on-board computer, electric doors and windows, etc.

[0043] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fuel cell tractor vehicle characterized by, The application relates to a hydrogen fuel cell vehicle, which comprises a vehicle frame, a cab arranged above the vehicle frame and a hydrogen supply system, wherein the bottom of the vehicle frame is provided with a driving system and a fuel cell engine, the two sides of the vehicle frame are provided with power battery modules, the fuel cell engine, the power battery modules and the driving system are electrically connected in sequence, the hydrogen supply system transmits hydrogen to the fuel cell engine, the fuel cell engine converts the hydrogen into electric energy and transmits the electric energy to the power battery modules, and the power battery modules transmit the electric energy to the driving system.

2. The fuel cell tractor of claim 1, wherein, First auxiliary supports and second auxiliary supports are arranged at the two sides of the tail of the vehicle frame, an integrated control assembly is arranged on the first auxiliary supports, the driving system and the fuel cell engine are controlled through the integrated control assembly, an integrated cooling unit is arranged on the second auxiliary supports, and the power battery modules, the driving system and the cab are integrated refrigerated through the integrated cooling unit.

3. The fuel cell tractor of claim 2, wherein, A power battery control assembly electrically connected with the power battery modules is further arranged on the second auxiliary supports, and the power battery modules are controlled through the power battery control assembly.

4. The fuel cell tractor of claim 1, wherein, A fuel cell cooling system is arranged above the hydrogen supply system, and the fuel cell cooling system radiates the fuel cell engine.

5. The fuel cell tractor of claim 1, wherein, The hydrogen supply system comprises a mounting frame and a hydrogen cylinder arranged in the mounting frame, and the hydrogen cylinder is communicated with the fuel cell engine.

6. The fuel cell tractor of claim 5, wherein, A fuel cell air inlet assembly communicated with the fuel cell engine is further arranged, the fuel cell air inlet assembly comprises an air inlet pipe and a pre-filter and an air filter arranged on the air inlet pipe, and the pre-filter and the air filter are arranged on the mounting frame.

7. The fuel cell tractor of claim 2, wherein, A braking system is further arranged on the vehicle frame, the braking system comprises an electric air compressor assembly, a drying tank, an air cylinder and a braking assembly communicated in sequence, air in the outside is converted into compressed air through the electric air compressor assembly and then transmitted to the drying tank for drying, the compressed air treated by the drying tank is transmitted to the air cylinder, and the air cylinder delivers compressed air to the braking assembly.

8. The fuel cell tractor of claim 7, wherein, The electric air compressor assembly is arranged on the first auxiliary supports.

9. The fuel cell tractor of claim 1, wherein, The driving system is an integrated electric drive axle system.

10. The fuel cell tractor of claim 1, wherein, A low-voltage storage battery is further arranged at the tail, and the low-voltage storage battery provides power for low-voltage electrical equipment of the vehicle.

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