A hydrogen fuel cell tractor

Abstract

The utility model relates to the technical field of tractors, and more specifically, to a hydrogen fuel cell tractor, comprising a frame and a cab mounted on the frame, a fuel cell system, a front axle, a hydrogen storage system, a power battery and a rear axle; the cab is located at the front end of the frame and above the frame, the fuel cell system and the front axle are respectively mounted at the bottom of the cab, and the front axle is located behind the fuel cell system; the front axle is equipped with a front wheel, and the rear axle is equipped with a rear wheel; the hydrogen storage system and the power battery are integrated and assembled between the front axle and the rear axle, and are located above the frame behind the cab. The utility model arranges the power battery above the frame between the front axle and the rear axle, reduces the occupation of the space under the frame, and can achieve the reasonable arrangement of the hydrogen fuel cell tractor and improve space utilization.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, and more specifically, to a hydrogen fuel cell tractor. Background Art

[0002] The chassis of a hydrogen fuel cell tractor generally needs to be equipped with a hydrogen fuel reaction device and a supporting hydrogen supply system as well as other systems. The increase in cooling modules, coupled with the cooling modules of other systems, makes the layout of the entire vehicle more difficult.

[0003] The prior art discloses a fuel cell tractor, comprising: a frame, on which a cab, an integrated electronic control system, a front axle, a fuel cell, a hydrogen filling port, a drive assembly, an on-board hydrogen supply system, and a rear axle are assembled from front to back; tires are mounted on the front axle and the rear axle; wherein, on the frame, there is a reserved space between the rear of the cab and the front of the rear axle for installing the on-board hydrogen supply system; a battery thermal management system is arranged behind the front axle on the right side of the frame; power batteries are arranged on both sides of the frame, and the power batteries are located between the rear axle and the gas cylinder frame; an exhaust system is arranged below the frame and behind the front axle; and a gas cylinder is arranged at the rear crossbeam at the rear of the frame and below the low-voltage battery. In this scheme, although the modular layout of the fuel cell tractor is finalized, the layout architecture is more compact, and the load distribution is more reasonable, the power batteries are arranged on both sides of the frame, occupying a large space on the chassis. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a hydrogen fuel cell tractor, in which the power battery is arranged above the frame between the front axle and the rear axle, thereby reducing the occupation of the layout space under the frame, realizing the reasonable layout of the hydrogen fuel cell tractor and improving the space utilization rate.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A hydrogen fuel cell tractor is provided, comprising a frame and a cab mounted on the frame, a fuel cell system, a front axle, a hydrogen storage system, a power battery and a rear axle; the cab is located at the front end of the frame, the fuel cell system and the front axle are respectively mounted at the bottom of the cab, and the front axle is located behind the fuel cell system; the front axle is equipped with a front wheel, and the rear axle is equipped with a rear wheel; the hydrogen storage system and the power battery are integrated and assembled between the front axle and the rear axle, and are located above the frame behind the cab.

[0007] The hydrogen fuel cell tractor of the utility model takes the forward direction of the tractor as the front end, arranges the fuel cell system at the front end of the front axle, arranges the hydrogen storage system and the power battery above the frame between the front axle and the rear axle, reduces the occupation of the arrangement space under the frame, and leaves the space under the frame between the front axle and the rear axle vacant for the arrangement of other systems.

[0008] Furthermore, the power battery is installed below the hydrogen storage system, and the hydrogen storage system includes a hydrogen storage frame and a hydrogen bottle installed in the hydrogen storage frame.

[0009] Furthermore, it also includes an electric drive system, which is located below the integrated hydrogen storage system and the power battery and below the middle of the frame. The electric drive system is installed in the middle of the frame so that the center of gravity of the electric drive system falls on the longitudinal center line of the frame as much as possible.

[0010] Furthermore, it also includes a main bulk cooling system, which is arranged on both sides of the frame and below the integrated hydrogen storage system and the power battery. The power battery and the hydrogen storage system are integrated and installed above the frame, and the space below the frame can be left vacant for arranging the main bulk cooling system. The main bulk cooling systems on both sides of the frame are balanced so that the center of gravity of the main bulk cooling system falls on the longitudinal center line of the frame as much as possible.

[0011] Furthermore, the main cooling system includes a first high-pressure fan located on the left side of the frame and a second high-pressure fan located on the right side of the frame, a high-pressure box is arranged behind the first high-pressure fan, and a low-pressure battery and an air reservoir are integrated behind the second high-pressure fan. The first high-pressure fan and the second high-pressure fan form a left-right balance, and the high-pressure box and the integrated low-pressure battery and air reservoir form a left-right balance, so that the center of gravity of the whole vehicle falls on the longitudinal center line of the frame as much as possible.

[0012] Furthermore, it also includes an integrated liquid cooling device connected to the vehicle VCU, the integrated liquid cooling device includes an integrated auxiliary cooling system, air conditioning system, high-voltage electrical system, heating system and battery thermal management system, the integrated liquid cooling device is arranged under the cab, and the auxiliary cooling system is located in front of the fuel cell system, the high-voltage electrical system, heating system and battery thermal management system are integrated and arranged behind the fuel cell system through an all-in-one bracket, and the auxiliary cooling system and battery thermal management system are connected to the air conditioning system respectively. The auxiliary cooling system, air conditioning system and battery thermal management system are integrated and designed to optimize the vehicle thermal management system, and each system is controlled by the vehicle VCU to achieve intelligent thermal management control.

[0013] Furthermore, the air conditioning system shares a radiator and a condenser with the auxiliary cooling system, and the heating system can draw heat from the fuel cell system for heating the cab.

[0014] Furthermore, the heating system includes a heating panel, a heating water pump and a heating PTC, and the battery thermal management system includes a battery thermal management system water pump and a battery thermal management system panel, and the heating panel, heating water pump, heating PTC, battery thermal management system water pump and battery thermal management system panel are installed on the all-in-one bracket. The high-voltage electrical system, heating system and battery thermal management system are integrated and arranged behind the fuel cell, fully considering the assembly processability and the convenience of disassembly and maintenance, and the integrated arrangement of each system can save layout space and cost.

[0015] Furthermore, the high voltage electrical system includes an all-in-one controller.

[0016] Furthermore, it also includes a braking system, which includes an electric air compressor bracket and an electric air compressor installed on the electric air compressor bracket, the electric air compressor bracket is installed on the right side of the frame through a right leaf spring support, and the electric air compressor bracket is also installed with a right front wheel fender, and the right front wheel fender is located behind the front wheel.

[0017] Furthermore, it also includes a steering system, the steering system includes an electric steering oil pump bracket and an electric steering oil pump, the air conditioning system includes an air conditioning compressor, the electric steering oil pump and the air conditioning compressor are respectively installed on the electric steering oil pump bracket, the electric steering oil pump bracket is installed on the left side of the frame through the left leaf spring support, and the electric steering oil pump is also installed with a left front wheel fender, and the left front wheel fender is located behind the front wheel. The braking system and the steering system are respectively arranged on both sides of the frame to form a balance, the left front wheel fender and the right front wheel fender are respectively arranged on both sides of the frame, and are respectively located behind the two front wheels to form a balance, so that the center of gravity of the whole vehicle falls on the longitudinal center line of the frame as much as possible, improve the stability of the whole vehicle, realize the reasonable layout of the hydrogen fuel cell tractor, and have high space utilization.

[0018] Furthermore, it also includes an intake system and an exhaust system respectively connected to the fuel cell system, the exhaust system is located below the frame and behind the fuel cell system, and the intake system is located between the cab and the hydrogen storage system.

[0019] Compared with the prior art, the hydrogen fuel cell tractor of the utility model has the following beneficial effects:

[0020] Placing the power battery and hydrogen storage system above the frame between the front axle and the rear axle can reduce the space occupied under the frame, achieve a reasonable layout of the hydrogen fuel cell tractor, and improve space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic structural diagram of a hydrogen fuel cell tractor in an embodiment of the utility model from a first viewing angle;

[0022] Figure 2 It is a structural schematic diagram of a hydrogen fuel cell tractor in an embodiment of the utility model at a second viewing angle;

[0023] Figure 3 The installation diagram of the heating system and the battery thermal management system in the embodiment of the utility model is shown;

[0024] Figure 4 It is a schematic diagram of the installation of the braking system and the steering system in the embodiment of the utility model.

[0025] In the attached figure: 1-frame; 2-cab; 3-fuel cell system; 4-front axle; 5-hydrogen storage system; 501-hydrogen storage frame; 502-hydrogen bottle; 6-power battery; 7-rear axle; 8-electric drive system; 9-main diffuser cooling system; 901-first high-pressure fan; 902-second high-pressure fan; 10-high-pressure box; 11-low-voltage battery and air tank; 12-auxiliary diffuser cooling system; 13-air conditioning system; 1301-air conditioning compressor; 14-high-voltage electrical system; 15-heating system; 1501- Heater board replacement; 1502-heater water pump; 1503-heater PTC; 16-battery thermal management system; 1601-battery thermal management system water pump; 1602-battery thermal management system board replacement; 17-all-in-one bracket; 18-electric air compressor bracket; 19-electric air compressor; 20-right leaf spring support; 21-right front wheel fender; 22-electric steering oil pump bracket; 23-electric steering oil pump; 24-left leaf spring support; 25-left front wheel fender; 26-intake system; 27-exhaust system. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Embodiment 1

[0029] A hydrogen fuel cell tractor, such as Figure 1 , Figure 2 As shown, it includes a frame 1 and a cab 2, a fuel cell system 3, a front axle 4, a hydrogen storage system 5, a power battery 6 and a rear axle 7 mounted on the frame 1; the cab 2 is located at the front end of the frame 1 and above the frame 1, the fuel cell system 3 and the front axle 4 are respectively installed at the bottom of the cab 2, and the front axle 4 is located behind the fuel cell system 3; the front axle 4 is equipped with a front wheel, and the rear axle 7 is equipped with a rear wheel; the hydrogen storage system 5 and the power battery 6 are integrated and assembled between the front axle 4 and the rear axle 7, and are located above the frame 1 behind the cab 2.

[0030] The above-mentioned hydrogen fuel cell tractor has the forward direction of the tractor as the front end, the fuel cell system 3 is arranged at the front end of the front axle 4, and the hydrogen storage system 5 and the power battery 6 are arranged above the frame 1 between the front axle 4 and the rear axle 7, so as to reduce the occupation of the space under the frame 1, and leave the space under the frame 1 between the front axle 4 and the rear axle 7 vacant, which can be used for the arrangement of other systems.

[0031] Among them, Figure 1 As shown, the power battery 6 is installed below the hydrogen storage system 5. The hydrogen storage system 5 includes a hydrogen storage frame 501 and a hydrogen bottle 502 installed in the hydrogen storage frame 501. There are 6 hydrogen bottles 502 arranged in three rows and two columns. The capacity of each hydrogen bottle 502 is 385L, realizing high-capacity hydrogen storage.

[0032] like Figure 2 As shown, the vehicle also includes an electric drive system 8, which is located below the integrated hydrogen storage system 5 and the power battery 6, and below the middle of the vehicle frame 1. The electric drive system 8 is installed in the middle of the vehicle frame 1 so that the center of gravity of the electric drive system 8 falls on the longitudinal center line of the vehicle frame 1 as much as possible.

[0033] like Figure 2As shown, the main bulk cooling system 9 is also included. The main bulk cooling system 9 is arranged on both sides of the frame 1 and is located below the integrated hydrogen storage system 5 and the power battery 6. The power battery 6 and the hydrogen storage system 5 are integrated and installed above the frame 1, and the space below the frame 1 can be left vacant for arranging the main bulk cooling system 9. The main bulk cooling systems 9 on both sides of the frame 1 are mutually balanced, so that the center of gravity of the main bulk cooling system 9 falls on the longitudinal center line of the frame 1 as much as possible. Specifically, the main bulk cooling system 9 includes a first high-pressure fan 901 located on the left side of the frame 1 and a second high-pressure fan 902 located on the right side of the frame 1. A high-pressure box 10 is arranged behind the first high-pressure fan 901, and a low-pressure battery and an air storage cylinder 11 are integrated behind the second high-pressure fan 902. The first high-pressure fan 901 and the second high-pressure fan 902 form a left-right balance, and the high-pressure box 10 and the integrated low-pressure battery and the air storage cylinder 11 form a left-right balance, so that the center of gravity of the whole vehicle falls on the longitudinal center line of the frame 1 as much as possible.

[0034] like Figure 1 As shown, it also includes an intake system 26 and an exhaust system 27 respectively connected to the fuel cell system 3. The exhaust system 27 is located below the frame 1 and behind the fuel cell system 3. The intake system 26 is located between the cab 2 and the hydrogen storage system 5.

[0035] Embodiment 2

[0036] This embodiment is similar to the first embodiment, except that it also includes an integrated liquid cooling device connected to the vehicle VCU, such as Figure 2 , Figure 3 As shown, the integrated liquid cooling device includes an integrated auxiliary cooling system 12, an air conditioning system 13, a high-voltage electrical system 14, a heating system 15 and a battery thermal management system 16. The integrated liquid cooling device is arranged below the cab 2, and the auxiliary cooling system 12 is located in front of the fuel cell system 3. The high-voltage electrical system 14, the heating system 15 and the battery thermal management system 16 are integrated and arranged on the frame 1 behind the fuel cell system 3 through an all-in-one bracket 17. The auxiliary cooling system 12 and the battery thermal management system 16 are connected to the air conditioning system 13 respectively. Specifically, the air conditioning system 13 and the auxiliary cooling system 12 share a radiator and a condenser, and the heating system 15 can take heat from the fuel cell system 3 for heating the cab 2. In this embodiment, the auxiliary cooling system 12, the air conditioning system 13 and the battery thermal management system 16 are integrated and designed to optimize the thermal management system of the whole vehicle, and each system is controlled by the whole vehicle VCU to realize intelligent thermal management control.

[0037] Among them, Figure 3As shown, the heater system 15 includes a heater panel changer 1501, a heater water pump 1502 and a heater PTC 1503, and the battery thermal management system 16 includes a battery thermal management system water pump 1601 and a battery thermal management system panel changer 1602. The heater panel changer 1501, the heater water pump 1502, the heater PTC 1503, the battery thermal management system water pump 1601 and the battery thermal management system panel changer 1602 are installed on an all-in-one bracket 17, and the high-voltage electrical system 14 is installed on the top of the all-in-one bracket 17. In this embodiment, the high-voltage electrical system 14, the heater system 15 and the battery thermal management system 16 are integrated and arranged behind the fuel cell system 3, fully considering the assembly processability and the convenience of disassembly and maintenance, and the integrated arrangement of each system can save layout space and cost.

[0038] Embodiment 3

[0039] This embodiment is similar to the second embodiment, except that Figure 4 As shown, it also includes a braking system and a steering system; the braking system includes an electric air compressor bracket 18 and an electric air compressor 19 installed on the electric air compressor bracket 18, the electric air compressor bracket 18 is installed on the right side of the frame 1 through the right leaf spring support 20, the electric air compressor bracket 18 is also installed with a right front wheel fender 21, and the right front wheel fender 21 is located behind the front wheel; the steering system includes an electric steering oil pump bracket 22 and an electric steering oil pump 23, the air-conditioning system 13 includes an air-conditioning compressor 1301, the electric steering oil pump 23 and the air-conditioning compressor 1301 are respectively installed on the electric steering oil pump bracket 22, the electric steering oil pump bracket 22 is installed on the left side of the frame 1 through the left leaf spring support 24, the electric steering oil pump 23 is also installed with a left front wheel fender 25, and the left front wheel fender 25 is located behind the front wheel. In this embodiment, the braking system and the steering system are respectively arranged on both sides of the frame 1 to form a balance. The left front wheel fender 25 and the right front wheel fender 21 are respectively arranged on both sides of the frame 1 and are respectively located behind the two front wheels to form a balance, so that the center of gravity of the whole vehicle falls on the longitudinal center line of the frame 1 as much as possible, thereby improving the stability of the whole vehicle. This embodiment realizes the reasonable layout of the hydrogen fuel cell tractor and has a high space utilization rate.

[0040] The high-voltage electrical system 14 includes an all-in-one controller. The braking system, steering system, air-conditioning system 13, low-voltage battery and electric drive system 8 are respectively connected to the all-in-one controller for communication. The all-in-one controller is connected to the vehicle VCU for communication. The above systems can be coordinated and controlled through the all-in-one controller.

[0041] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A hydrogen fuel cell tractor, characterized in that: The invention comprises a vehicle frame (1), a cab (2) mounted on the vehicle frame (1), a fuel cell system (3), a front axle (4), a hydrogen storage system (5), a power battery (6) and a rear axle (7); the cab (2) is located at the front end of the vehicle frame (1) and above the vehicle frame (1); the fuel cell system (3) and the front axle (4) are respectively mounted at the bottom of the cab (2), and the front axle (4) is located behind the fuel cell system (3); the front axle (4) is equipped with a front wheel, and the rear axle (7) is equipped with a rear wheel; the hydrogen storage system (5) and the power battery (6) are integrated and mounted between the front axle (4) and the rear axle (7), and are located above the vehicle frame (1) behind the cab (2).

2. The hydrogen fuel cell tractor according to claim 1, characterized in that: It also includes an electric drive system (8), which is located below the integrated hydrogen storage system (5) and the power battery (6), and below the middle of the frame (1).

3. The hydrogen fuel cell tractor according to claim 1, characterized in that: It also includes a main-distributor cooling system (9), which is arranged on both sides of the vehicle frame (1) and is located below the integrated hydrogen storage system (5) and the power battery (6).

4. The hydrogen fuel cell tractor according to claim 3, characterized in that: The main cooling system (9) comprises a first high-pressure fan (901) located on the left side of the frame (1) and a second high-pressure fan (902) located on the right side of the frame (1); a high-pressure box (10) is arranged behind the first high-pressure fan (901); and a low-pressure battery and an air storage cylinder (11) are arranged in an integrated manner behind the second high-pressure fan (902).

5. The hydrogen fuel cell tractor according to claim 1, characterized in that: The invention also comprises an integrated liquid cooling device connected to the vehicle VCU, wherein the integrated liquid cooling device comprises an auxiliary cooling system (12), an air conditioning system (13), a high-voltage electrical system (14), a heating system (15) and a battery thermal management system (16) which are arranged in an integrated manner. The integrated liquid cooling device is arranged below the cab (2), and the auxiliary cooling system (12) is located in front of the fuel cell system (3). The high-voltage electrical system (14), the heating system (15) and the battery thermal management system (16) are integrated and arranged behind the fuel cell system (3) via an all-in-one bracket (17). The auxiliary cooling system (12) and the battery thermal management system (16) are respectively connected to the air conditioning system (13).

6. The hydrogen fuel cell tractor according to claim 5, characterized in that: The heating system (15) comprises a heating panel changer (1501), a heating water pump (1502) and a heating PTC (1503); the battery thermal management system (16) comprises a battery thermal management system water pump (1601) and a battery thermal management system panel changer (1602); the heating panel changer (1501), the heating water pump (1502), the heating PTC (1503), the battery thermal management system water pump (1601) and the battery thermal management system panel changer (1602) are installed on the all-in-one bracket (17).

7. The hydrogen fuel cell tractor according to claim 5, characterized in that: The high voltage electrical system (14) includes an all-in-one controller.

8. The hydrogen fuel cell tractor according to claim 1, characterized in that: The vehicle also includes a braking system, the braking system including an electric air compressor bracket (18) and an electric air compressor (19) mounted on the electric air compressor bracket (18), the electric air compressor bracket (18) being mounted on the right side of the vehicle frame (1) via a right leaf spring support (20), the electric air compressor bracket (18) also being mounted with a right front wheel fender (21), and the right front wheel fender (21) being located behind the front wheel.

9. The hydrogen fuel cell tractor according to claim 5, characterized in that: The vehicle also includes a steering system, the steering system including an electric steering oil pump bracket (22) and an electric steering oil pump (23), the air conditioning system (13) including an air conditioning compressor (1301), the electric steering oil pump (23) and the air conditioning compressor (1301) are respectively mounted on the electric steering oil pump bracket (22), the electric steering oil pump bracket (22) is mounted on the left side of the vehicle frame (1) via a left leaf spring support (24), the electric steering oil pump (23) is also mounted with a left front wheel fender (25), and the left front wheel fender (25) is located behind the front wheel.

10. The hydrogen fuel cell tractor according to any one of claims 1 to 9, characterized in that: It also includes an intake system (26) and an exhaust system (27) respectively connected to the fuel cell system (3), wherein the exhaust system (27) is located below the vehicle frame (1) and behind the fuel cell system (3), and the intake system (26) is located between the cab (2) and the hydrogen storage system (5).

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