Long-endurance fuel cell tractor

Abstract

A long-endurance fuel cell tractor relates to the technical field of tractors and comprises a frame, and a cab, a trailer, a hydrogen supply system, a fuel cell system and a high-pressure combined module which are arranged on the frame, the cab is arranged at the end of the frame in a turnover mode, and the trailer and the cab are arranged in a spaced mode and used for loading goods. The hydrogen supply system comprises a plurality of hydrogen cylinders which are sequentially arranged between the cab and the trailer in a stacked mode in the vertical direction, and a preset trailer front rotation interval is formed between the hydrogen cylinders and the cab. The fuel cell system is arranged between the cab and the frame, and the fuel cell system is connected with the hydrogen supply system; the high-voltage combined module comprises an integrated controller and a high-voltage box which are connected, and the integrated controller and the high-voltage box are arranged on any side edge of the frame; and the fuel cell system and the high-voltage box are electrically connected with the integrated controller respectively. The endurance can be effectively increased, meanwhile, front rotation of the whole vehicle is guaranteed, and the convenience of assembly and maintenance is improved through the layout structure.

Description

Technical Field

[0001] The present invention relates to the technical field of tractors, and in particular to a long-range fuel cell tractor. Background Art

[0002] A fuel cell is a power generation device that directly converts the chemical energy of a fuel into electrical energy. It has the characteristics of high energy conversion rate, no noise pollution, and environmental friendliness. Fuel cells that use hydrogen with high calorific value and zero carbon emissions as fuel are an effective means to alleviate energy pressure and achieve harmonious development of the economy and the environment, thereby driving the vigorous development of the hydrogen energy industry.

[0003] At present, a long-range fuel cell tractor can carry up to eight large-volume gas cylinders. Depending on the hydrogen storage pressure, the maximum range of the vehicle is about 1,000 km, which is much less than that of an ordinary diesel vehicle. At the same time, due to the constraints of fewer domestic hydrogen refueling station resources, large fluctuations in hydrogen refueling prices, and insufficient hydrogen refueling capacity, the long-range fuel cell tractor equipped with eight hydrogen cylinders is still unable to expand to the high-speed trunk transportation market. Therefore, there is an urgent need for a long-range fuel cell tractor that can effectively increase the range while ensuring the front rotation of the vehicle and realizing the convenience of assembly and maintenance. Summary of the invention

[0004] The purpose of the present invention is to provide a long-range fuel cell tractor, which can effectively increase the range and ensure the front rotation of the whole vehicle. The layout structure improves the convenience of assembly and maintenance.

[0005] The embodiment of the present invention is achieved as follows:

[0006] One aspect of the present invention provides a long-range fuel cell tractor, comprising a frame and a cab, a trailer, a hydrogen supply system, a fuel cell system and a high-voltage combination module arranged on the frame; the cab is flippably arranged at the end of the frame, and the trailer is spaced apart from the cab for loading cargo; the hydrogen supply system comprises a plurality of hydrogen cylinders, which are stacked in sequence between the cab and the trailer in a vertical direction and have a preset trailer front rotation interval with the cab; the fuel cell system is arranged between the cab and the frame, and the fuel cell system is connected to the hydrogen supply system; the high-voltage combination module comprises an integrated controller and a high-voltage box connected to each other, and the integrated controller and the high-voltage box are arranged on either side of the frame; the fuel cell system and the high-voltage box are electrically connected to the integrated controller respectively.

[0007] Optionally, the long-range fuel cell tractor also includes a hydrogen cylinder assembly, which is arranged close to the hydrogen supply system and located on the side of the frame away from the high-voltage combination module. The hydrogen cylinder assemblies are symmetrically distributed on opposite sides of the frame and arranged under the trailer, and the two hydrogen cylinder assemblies are connected; the hydrogen cylinder assembly is connected to the fuel cell system.

[0008] Optionally, the long-range fuel cell tractor also includes a stack cooling module, which is arranged on the top of the hydrogen supply system; the stack cooling module includes a connected coolant pipe, which is used to pass coolant; the stack cooling module is connected to the fuel cell system through the coolant pipe.

[0009] Optionally, the long-range fuel cell tractor further includes a power battery pack, which is arranged in the middle of the frame and located on the side of the hydrogen supply system facing the frame; the power battery pack includes a first battery pack, and the first battery pack is electrically connected to the high-voltage box.

[0010] Optionally, the power battery pack also includes a bracket and four connecting frames, the four connecting frames are arranged in pairs on opposite sides of the bracket, and the two connecting frames on the same side are arranged at intervals; the frame includes two parallel and spaced-apart beams, the bracket is fixedly connected to the two beams through the four connecting frames, and the first battery pack is placed on the bracket; a rubber shock-absorbing pad is arranged between the connecting frame and the bracket.

[0011] Optionally, the long-range fuel cell tractor further includes a battery assembly module, which is arranged on a side edge of the frame and side by side with the high-voltage assembly module.

[0012] Optionally, the battery management system includes a mid-axle electric drive controller and a rear-axle electric drive controller; the battery combination module also includes a first bracket, a low-voltage lithium-ion battery and a second battery pack; the second battery pack is connected in parallel with the first battery pack and is electrically connected to the high-voltage box; the low-voltage lithium-ion battery is electrically connected to the integrated controller; the first bracket includes a first body and a first connecting arm arranged on the side edge of the first body, the first body is connected to the frame through the first connecting arm, and the first connecting arm is arranged vertically to the frame; the first body includes a plurality of placement layers stacked in a vertical direction, and the mid-axle electric drive controller, the rear-axle electric drive control, the low-voltage lithium-ion battery and the second battery pack are respectively placed in the placement layers.

[0013] Optionally, the long-range fuel cell tractor further includes a brake combination module, which is disposed on the frame and located between the hydrogen supply system and the trailer, and the top of the brake combination module is uncovered.

[0014] Optionally, the brake combination module includes a welding bracket, both sides of which are fixedly connected to the two cross beams respectively; the brake combination module includes a connected brake air compressor and an air cylinder assembly, the brake air compressor is placed on the top surface of the welding bracket, and the air cylinder assembly is placed on the side of the welding bracket away from the brake air compressor.

[0015] Optionally, the high-voltage combination module also includes a second bracket, the second bracket includes a second body and a second connecting arm arranged on the side edge of the second body, the second body is connected to the frame through the second connecting arm, and the second connecting arm is arranged vertically to the frame; the second body includes two placement layers stacked in a vertical direction, and the integrated controller and the high-voltage box are respectively arranged in the two placement layers.

[0016] The beneficial effects of the present invention include:

[0017] The present application provides a long-range fuel cell tractor, comprising a frame and a cab arranged on the frame, a trailer, a hydrogen supply system, a fuel cell system and a high-voltage combination module; the cab is flippably arranged at the end of the frame, so as to facilitate the repair and maintenance of the components at the bottom of the cab; the trailer and the cab are spaced apart and used to load goods; the hydrogen supply system comprises a plurality of hydrogen cylinders, which are stacked in sequence between the cab and the trailer in a vertical direction, so as to effectively utilize the space between the cab and the trailer and improve the space utilization rate; and the hydrogen cylinder and the cab have a preset trailer front rotation interval to ensure the front rotation of the whole vehicle; the fuel cell system comprises a plurality of fuel cells, Multiple fuel cells are arranged side by side between the cab and the frame. The fuel cell system is connected to the hydrogen supply system to ensure that hydrogen is smoothly transported from the hydrogen supply system to the fuel cell to provide power for the vehicle's travel. The high-voltage combination module includes an integrated controller and a high-voltage box that are connected to each other. The integrated controller and the high-voltage box are arranged on either side of the frame to arrange the main high-voltage parts of the vehicle on the same side of the frame, which can be easily disassembled, wired and maintained. At the same time, they can also be separated from the low-voltage wiring harness to improve electrical reliability. The fuel cell system and the high-voltage box are electrically connected to the integrated controller respectively, and the integrated controller is used for power connection output to improve the reliability and safety of the long-range fuel cell tractor. The above-mentioned long-range fuel cell tractor can effectively increase the range while ensuring the front rotation of the vehicle. The layout structure improves the convenience of assembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of a long-range fuel cell tractor provided by an embodiment of the present invention;

[0020] Figure 2 One of the structural schematic diagrams of the frame of a long-range fuel cell tractor provided by an embodiment of the present invention;

[0021] Figure 3 A second structural schematic diagram of a frame of a long-range fuel cell tractor provided in an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a high-voltage combination module of a long-range fuel cell tractor provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the structure of a battery assembly module for a long-range fuel cell tractor provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the structure of a power battery pack for a long-range fuel cell tractor provided by an embodiment of the present invention;

[0025] Figure 7 A schematic structural diagram of a brake assembly module for a long-range fuel cell tractor provided in an embodiment of the present invention.

[0026] Icons: 100-long-range fuel cell tractor; 101-frame; 1011-crossbeam; 110A-motor cooling module; 110B-battery cooling module; 120-hydrogen supply system; 130-fuel cell system; 140-high-voltage combination module; 141-high-voltage box; 142-integrated controller; 143-second bracket; 1431-second body; 1432-second connecting arm; 150-hydrogen cylinder assembly; 160-fuel cell stack cooling module; 170-power battery pack; 171-second A battery pack; 172-bracket; 173-connecting frame; 174-rubber shock-absorbing pad; 180-battery combination module; 181-mid-axle electric drive controller; 182-rear axle electric drive controller; 183-first bracket; 1831-first body; 1832-first connecting arm; 184-low-voltage lithium-ion battery; 185-second battery pack; 190-brake combination module; 191-brake air compressor; 192-air cylinder assembly; 193-welding bracket; 200-cab; 300-trailer. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figure 1 and Figure 2The present embodiment provides a long-range fuel cell tractor 100, comprising a frame 101, a cab 200, a trailer 300, a hydrogen supply system 120, a fuel cell system 130 and a high-voltage combination module 140 arranged on the frame 101; the cab 200 is flippably arranged at the end of the frame 101, and the trailer 300 is spaced apart from the cab 200 for loading cargo; the hydrogen supply system 120 comprises a plurality of hydrogen cylinders, which are stacked in sequence along the vertical direction between the cab 200 and the trailer 300. The trailer 300 is disposed between the cab 200 and the frame 101, and has a preset front turning interval of the trailer 300 with the cab 200; the fuel cell system 130 is disposed between the cab 200 and the frame 101, and the fuel cell system 130 is connected to the hydrogen supply system 120; the high-pressure combination module 140 includes an integrated controller 142 and a high-pressure box 141 connected to each other, and the integrated controller 142 and the high-pressure box 141 are disposed on either side edge of the frame 101; the fuel cell system 130 and the high-pressure box 141 are electrically connected to the integrated controller 142 respectively.

[0034] Specifically, the present application provides a long-range fuel cell tractor 100, such as Figure 1 As shown, it includes a frame 101 that plays a bearing role, a cab 200 and a trailer 300 that are spaced apart on the frame 101, and wheels are spaced apart on both sides of the frame 101. The frame 101 disposed below the cab 200 and the frame 101 disposed below the trailer 300 can be two separate and independent frames.

[0035] The long-range fuel cell tractor 100 also includes a hydrogen supply system 120, a fuel cell system 130 and a high-voltage combination module 140. The hydrogen supply system 120 includes a plurality of hydrogen cylinders, preferably 8 hydrogen cylinders, each of which has a capacity greater than 385 liters, so as to increase the hydrogen supply of the long-range fuel cell tractor 100 as much as possible, thereby increasing the mileage of the long-range fuel cell tractor 100. Of course, the present application does not impose any restrictions on the specific volume and quantity of the hydrogen cylinders. If the volume of the hydrogen cylinders is small, the number of hydrogen cylinders can be increased accordingly, as long as the arrangement of the plurality of hydrogen cylinders does not affect the wheelbase and front slewing of the vehicle, and at the same time effectively increases the range.

[0036] Among them, Figure 1 As shown, a plurality of hydrogen cylinders are stacked in sequence along the vertical direction between the cab 200 and the trailer 300 to improve space utilization; at the same time, the hydrogen cylinders and the cab 200 have a preset rotation interval in front of the trailer 300 to ensure that the cab 200 has sufficient rotation space.

[0037] The hydrogen supply system 120 is closely connected to the fuel cell system 130 through a pipeline as a supply source of hydrogen, and can transport the stored hydrogen to the fuel cell system 130. The hydrogen undergoes a chemical reaction in the fuel cell system 130.

[0038] The fuel cell system 130 can convert the chemical energy of the reaction between hydrogen and oxygen obtained from the air into electrical energy, providing power for the vehicle's motor and other high-voltage electrical equipment to drive the vehicle. The fuel cell system 130 includes a plurality of fuel cells, and the plurality of fuel cells arranged side by side can improve the efficiency and power of generating electrical energy. Among them, the fuel cell system 130 is arranged in the area between the cab 200 and the frame 101, which improves the space utilization of the long-range fuel cell tractor 100; by flipping the cab 200, the fuel cell system 130 arranged under the cab 200 can be exposed, so as to facilitate the repair and maintenance of the fuel cell system 130.

[0039] Please refer to Figure 2 and Figure 4 The high-voltage combination module 140 includes an integrated controller 142 and a high-voltage box 141 connected to each other. The fuel cell system 130 and the high-voltage box 141 are electrically connected to the integrated controller 142 respectively; the high-voltage box 141 is responsible for storing and distributing the electric energy generated by the fuel cell system 130 so as to transmit the electric energy to various high-voltage electrical equipment of the vehicle in the form of appropriate voltage and current. At the same time, it can also detect the status of the power battery; and the integrated controller is used for power output connection.

[0040] Among them, the integrated controller 142 and the high-voltage box 141 of the high-voltage combination module 140 are arranged on either side edge of the frame 101, making the high-voltage wiring harness shorter and the wiring smoother; at the same time, the high-voltage wiring harness is separated from the low-voltage wiring harness to improve electrical reliability.

[0041] It should be noted that, in one possible implementation mode of the present application, first, please refer to Figure 2 and Figure 3 In order to further improve the endurance of the long-range fuel cell tractor 100, the long-range fuel cell tractor 100 also includes a hydrogen cylinder assembly 150 to further improve the hydrogen storage capacity of the long-range fuel cell tractor 100. The hydrogen cylinder assembly 150 is connected to the fuel cell system 130 by a pipeline; wherein, Figure 2 and Figure 3 As shown, the hydrogen cylinder assembly 150 is arranged close to the hydrogen supply system 120 and is located on the side of the frame 101 away from the high-pressure combination module 140. The hydrogen cylinder assemblies 150 are symmetrically distributed on opposite sides of the frame 101 and are arranged under the trailer 300, and the two hydrogen cylinder assemblies 150 are connected.

[0042] This arrangement not only increases the hydrogen storage capacity of the vehicle and improves its cruising range, but also allows the hydrogen cylinder assembly 150 to be hung on the outside of the vehicle frame 101, thereby improving maintenance convenience.

[0043] Second, if Figure 4 As shown, the high-voltage combination module 140 also includes a second bracket 143, the second bracket 143 includes a second body 1431 and a second connecting arm 1432 arranged on the side edge of the second body 1431, the second body 1431 is connected to the frame 101 through the second connecting arm 1432, and the second connecting arm 1432 is vertically arranged to the frame 101; the second body 1431 includes two placement layers stacked in a vertical direction, and the integrated controller 142 and the high-voltage box 141 are respectively arranged in the two placement layers.

[0044] Specifically, in order to improve the connection stability between the integrated controller 142 and the high-voltage box 141 and the frame 101, as shown in FIG. Figure 4 As shown, the high-voltage combination module 140 also includes a second bracket 143, the second bracket 143 includes a second body 1431 and a second connecting arm 1432 arranged on the side edge of the second body 1431, the second connecting arm 1432 provides a mounting point for the second body 1431, so that the structure is simple and light; the second body 1431 includes two placement layers stacked in a vertical direction, the integrated controller 142 and the high-voltage box 141 are respectively arranged in the two placement layers, and the wiring harness interfaces of the integrated controller 142 and the high-voltage box 141 are both facing the outside of the vehicle and the direction of vehicle operation, which is more convenient for maintenance.

[0045] Third, if Figure 2 As shown, the long-range fuel cell tractor 100 further includes a motor heat dissipation module 110A and a battery cooling module 110B. The motor heat dissipation module 110A and the battery cooling module 110B are arranged on the periphery of the fuel cell system 130. The motor heat dissipation module 110A is used to dissipate heat for the motor, motor controller and integrated controller of the whole vehicle, and the battery cooling module 110B is used to dissipate heat for the power battery pack of the whole vehicle; the motor heat dissipation module 110A and the battery cooling module 110B and the fuel cell system 130 are all arranged between the cab 200 and the frame 101. While saving space utilization, by flipping the cab 200, the motor heat dissipation module 110A and the battery cooling module 110B arranged under the cab 200 can be exposed, so as to facilitate the repair and maintenance of the motor heat dissipation module 110A and the battery cooling module 110B.

[0046] The present application provides a long-range fuel cell tractor 100, including a frame 101 and a cab 200, a trailer 300, a hydrogen supply system 120, a fuel cell system 130 and a high-voltage combination module 140 arranged on the frame 101; the cab 200 is flippably arranged at the end of the frame 101, so as to facilitate the repair and maintenance of the components at the bottom of the cab 200; the trailer 300 is spaced apart from the cab 200 for loading cargo; the hydrogen supply system 120 includes a plurality of hydrogen cylinders, which are stacked in sequence between the cab 200 and the trailer 300 in a vertical direction, so as to effectively utilize the space between the cab 200 and the trailer 300 and improve the space utilization rate; and the hydrogen cylinder and the cab 200 have a preset front rotation interval of the trailer 300 to ensure the front rotation of the whole vehicle; the fuel cell system 13 ... and the fuel cell system 130 includes a plurality of hydrogen cylinders, which are stacked in sequence between the cab 200 and the trailer 300 in a vertical direction, so as to effectively utilize the space between the cab 200 and the trailer The fuel cell system 130 is connected to the hydrogen supply system 120 to ensure that hydrogen is smoothly transported from the hydrogen supply system 120 to the fuel cell to provide power for the vehicle. The high-voltage combination module 140 includes an integrated controller 142 and a high-voltage box 141 connected to each other. The integrated controller 142 and the high-voltage box 141 are arranged on either side of the frame 101 to arrange the main high-voltage parts of the vehicle on the same side of the frame 101, which can be easily disassembled, wired and maintained. At the same time, it can be separated from the low-voltage wiring harness to improve electrical reliability. The fuel cell system 130 and the high-voltage box 141 are electrically connected to the integrated controller 142 respectively, and the integrated controller is used for power connection output to improve the reliability and safety of the long-range fuel cell tractor 100. The above-mentioned long-range fuel cell tractor 100 can effectively increase the range and ensure the front rotation of the whole vehicle. The layout structure improves the convenience of assembly and maintenance.

[0047] For example, Figure 1 As shown, the long-range fuel cell tractor 100 also includes a stack heat dissipation module 160, which is arranged on the top of the hydrogen supply system 120; the stack heat dissipation module 160 includes a connected coolant pipe, which is used to pass coolant; the stack heat dissipation module 160 is connected to the fuel cell system 130 through the coolant pipe.

[0048] Specifically, Figure 1 As shown, the long-range fuel cell tractor 100 of the present application rationally utilizes the space of the vehicle by placing the stack heat dissipation module 160 on the top of the hydrogen supply system 120, making the overall structure of the vehicle more compact and regular; at the same time, arranging the stack heat dissipation module 160 on the top of the hydrogen supply system 120 is also beneficial to heat exchange between the heat dissipation module and the surrounding environment, thereby improving the heat dissipation efficiency.

[0049] Since the fuel cell generates a large amount of heat during operation, in order to ensure the performance and efficiency of the fuel cell, extend the service life of the fuel cell, and ensure safe and stable operation of the system, the stack heat dissipation module 160 can be connected to the fuel cell system 130 through a coolant pipe, and the coolant can circulate along the coolant pipe to flow through the fuel cell system 130 and take away the heat generated by the fuel cell.

[0050] Optionally, the stack heat dissipation module 160 may further include a radiator, which can be arranged at the periphery of the coolant pipeline to dissipate the coolant in the coolant pipeline to improve the heat dissipation efficiency.

[0051] In one possible implementation of the present application, Figure 2 and Figure 6 As shown, the long-range fuel cell tractor 100 also includes a power battery pack 170, which is arranged in the middle of the frame 101 and located on the side of the hydrogen supply system 120 facing the frame 101; the power battery pack 170 includes a first battery pack 171, and the first battery pack 171 is electrically connected to the high-voltage box 141.

[0052] Specifically, in order to ensure that the long-range fuel cell tractor 100 has sufficient kinetic energy, as Figure 2 As shown, the long-range fuel cell tractor 100 also includes a power battery pack 170, which can provide power together with the fuel cell system 130 to enhance the power performance of the vehicle; in the event of a failure of the fuel cell system 130 or insufficient hydrogen supply, the power battery pack 170 can be used as an emergency power supply to provide electrical energy for key equipment of the vehicle, thereby increasing the reliability and safety of the vehicle.

[0053] The power battery pack 170 is disposed in the middle of the frame 101 and on the side of the hydrogen supply system 120 facing the frame 101, so that the weight distribution of the vehicle can be more uniform; Figure 6 As shown, the power battery pack 170 includes a first battery pack 171 , which is electrically connected to the high-voltage box 141 for transmitting electric energy. The high-voltage box 141 can store, distribute and regulate the electric energy from the first battery pack 171 .

[0054] The present application does not impose any limitation on the specific number of the first battery packs 171. For example, Figure 6 As shown, there are two first battery packs 171, which are stacked. Of course, the number of first battery packs 171 can also be one, three, etc., which can be adjusted accordingly according to the required power value of the long-range fuel cell tractor 100.

[0055] It should be noted that, in one possible implementation of the present application, Figure 6As shown, the power battery pack 170 also includes a bracket 172 and four connecting frames 173. The four connecting frames 173 are respectively arranged on opposite sides of the bracket 172 in pairs, and the two connecting frames 173 on the same side are arranged at intervals. The frame 101 includes two parallel and spaced-apart beams 1011. The bracket 172 is fixedly connected to the two beams 1011 through the four connecting frames 173, and the first battery pack 171 is placed on the bracket 172. A rubber shock-absorbing pad 174 is arranged between the connecting frame 173 and the bracket 172.

[0056] Specifically, when assembling the long-range fuel cell tractor 100, first, the connecting frame 173 and the rubber shock-absorbing pads 174 are respectively installed at the installation points of the two cross beams 1011 of the frame 101 to enhance the structural stability. The rubber shock-absorbing pads 174 can effectively absorb and buffer these vibrations; at the same time, the bracket 172 and the first battery pack 171 are sub-assembled; by hoisting the above-mentioned sub-assembly and dropping it on the rubber shock-absorbing pads 174 at four places, it can be quickly disassembled and assembled from the frame 101, thereby improving the convenience of disassembly and assembly of the power battery pack 170.

[0057] For example, Figure 2 As shown, the long-range fuel cell tractor 100 further includes a battery assembly module 180 . The battery assembly module 180 is disposed on the side edge of the frame 101 and is arranged side by side with the high-voltage assembly module 140 .

[0058] Specifically, Figure 2 As shown, the long-range fuel cell tractor 100 also includes a battery assembly module 180, which is arranged on the side edge of the frame 101 and arranged side by side with the high-voltage assembly module 140, so that the main high-voltage components of the vehicle are arranged on the outside of the frame 101, making the high-voltage wiring harness shorter and the wiring smoother; at the same time, the high-voltage wiring harness is separated from the low-voltage wiring harness to improve electrical reliability.

[0059] It should be noted that, in one possible implementation of the present application, Figure 5As shown, the battery combination module 180 includes a mid-axle electric drive controller 181 and a rear-axle electric drive controller 182; the battery combination module 180 also includes a first bracket 183, a low-voltage lithium-ion battery 184 and a second battery pack 185; the second battery pack 185 is connected in parallel with the first battery pack 171 and is electrically connected to the high-voltage box 141; the low-voltage lithium-ion battery 184 is electrically connected to the integrated controller 142; the first bracket 183 includes a first body 1831 and a first connecting arm 1832 arranged on the side edge of the first body 1831, the first body 1831 is connected to the frame 101 through the first connecting arm 1832, and the first connecting arm 1832 is vertically arranged to the frame 101; the first body 1831 includes a plurality of placement layers stacked in a vertical direction, and the mid-axle electric drive controller 181, the rear-axle electric drive controller 182, the low-voltage lithium-ion battery 184 and the second battery pack 185 are respectively placed in the placement layers.

[0060] The mid-axle electric drive controller 181 and the rear-axle electric drive controller 182 are mainly responsible for power distribution and regulation as well as power output control, and are connected to the second battery pack 185; the battery combination module 180 also includes a second battery pack 185, which is connected in parallel with the first battery pack 171 to further increase the kinetic energy of the long-range fuel cell tractor 100; the low-voltage lithium-ion battery 184 is electrically connected to the integrated controller 142 to provide low voltage for the vehicle's control system, instruments and other low-voltage equipment to ensure that the vehicle can start normally.

[0061] like Figure 5 As shown, the battery assembly module 180 also includes a first bracket 183, the first bracket 183 includes a first body 1831 and a first connecting arm 1832 arranged at the side edge of the first body 1831, and the first bracket 183 sets the first body 1831 on the frame 101 through the first connecting arm 1832, and is arranged toward the outside. The first body 1831 includes a plurality of placement layers stacked in a vertical direction, and the mid-axle electric drive controller 181, the rear-axle electric drive controller 182, the low-voltage lithium-ion battery 184 and the second battery pack 185 are respectively placed in the placement layers. Such a setting can improve the integration of the overall structure and make the disassembly, assembly and maintenance process of the battery assembly module 180 more convenient.

[0062] For example, Figure 2 As shown, the long-range fuel cell tractor 100 further includes a brake combination module 190, which is disposed on the frame 101 and between the hydrogen supply system 120 and the trailer 300, and the top of the brake combination module 190 is uncovered.

[0063] Specifically, Figure 2As shown, the brake combination module 190 of the long-range fuel cell tractor can effectively control the speed of the vehicle and stop the vehicle smoothly. The brake combination module 190 is arranged on the frame 101 and is located between the hydrogen supply system 120 and the trailer 300. Since there is no other component blocking the brake combination module 190, the maintenance reliability and convenience of the brake combination module 190 are improved while improving the space utilization.

[0064] It should be noted that, in one possible implementation of the present application, Figure 7 As shown, the brake combination module 190 includes a welding bracket 193, and the two sides of the welding bracket 193 are respectively fixedly connected to the two cross beams 1011; the brake combination module 190 includes a connected brake air compressor 191 and an air cylinder assembly 192, the brake air compressor 191 is placed on the top surface of the welding bracket 193, and the air cylinder assembly 192 is placed on the side of the welding bracket 193 away from the brake air compressor 191.

[0065] Specifically, the brake combination module 190 includes a brake air compressor 191 and an air reservoir assembly 192 connected to each other. The air reservoir assembly 192 is mainly used to store compressed air delivered by the brake air compressor 191. The brake air compressor 191 can inhale and compress air, and the compressed air is delivered to the air reservoir assembly 192 through pipelines.

[0066] After the driver steps on the brake pedal, the compressed air in the air reservoir assembly 192 is distributed to various brake actuators through pipes and valves according to the control of the integrated controller 142. After the compressed air enters the brake chamber, it pushes the piston or other actuators in the brake chamber to move and generates huge friction, thereby achieving vehicle braking.

[0067] like Figure 7 As shown, the brake combination module 190 also includes a welding bracket 193, and the two sides of the welding bracket 193 are fixedly connected to the two beams 1011 to form a reliable structure, while improving the integration of the brake combination module 190 and improving space utilization through the setting method of the bracket.

[0068] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A long-range fuel cell tractor, characterized in that: The invention comprises a vehicle frame (101), a cab (200) arranged on the vehicle frame (101), a trailer (300), a hydrogen supply system (120), a fuel cell system (130) and a high-voltage combination module (140); the cab (200) is flippably arranged at the end of the vehicle frame (101); the trailer (300) is spaced apart from the cab (200) and is used to load cargo; the hydrogen supply system (120) comprises a plurality of hydrogen cylinders, the plurality of hydrogen cylinders are stacked in sequence in a vertical direction between the cab (200) and the trailer (300), and are spaced apart from the cab (200). The cabin (200) has a preset trailer front swing interval; the fuel cell system (130) is arranged between the cab (200) and the vehicle frame (101), and the fuel cell system (130) is connected to the hydrogen supply system (120); the high-pressure combination module (140) includes an integrated controller (142) and a high-pressure box (141) connected to each other, and the integrated controller (142) and the high-pressure box (141) are arranged on any side edge of the vehicle frame (101); the fuel cell system (130) and the high-pressure box (141) are respectively electrically connected to the integrated controller (142).

2. The long-range fuel cell tractor according to claim 1, characterized in that: The long-range fuel cell tractor (100) further comprises a hydrogen bottle assembly (150), wherein the hydrogen bottle assembly (150) is arranged close to the hydrogen supply system (120) and is located on a side of the frame (101) away from the high-voltage combination module (140), wherein the hydrogen bottle assemblies (150) are symmetrically distributed in pairs on opposite sides of the frame (101) and are arranged below the trailer (300), and the two hydrogen bottle assemblies (150) are connected; and the hydrogen bottle assembly (150) is connected to the fuel cell system.

3. The long-range fuel cell tractor according to claim 1, characterized in that: The long-range fuel cell tractor (100) further comprises a stack heat dissipation module (160), wherein the stack heat dissipation module (160) is arranged on the top of the hydrogen supply system (120); the stack heat dissipation module (160) comprises a connected coolant pipeline, wherein the coolant pipeline is used to pass coolant; the stack heat dissipation module (160) is connected to the fuel cell system (130) via the coolant pipeline.

4. The long-range fuel cell tractor according to claim 1, characterized in that: The long-range fuel cell tractor (100) further comprises a power battery pack (170), wherein the power battery pack (170) is arranged in the middle of the frame (101) and is located on a side of the hydrogen supply system (120) facing the frame (101); the power battery pack (170) comprises a first battery pack (171), and the first battery pack (171) is electrically connected to the high-voltage box (141).

5. The long-range fuel cell tractor according to claim 4, characterized in that: The power battery pack (170) further comprises a bracket (172) and four connecting frames (173), wherein the four connecting frames (173) are arranged in pairs on opposite sides of the bracket (172), and the two connecting frames (173) on the same side are arranged at intervals; the vehicle frame (101) comprises two parallel and spaced-apart crossbeams (1011), the bracket (172) is fixedly connected to the two crossbeams (1011) through the four connecting frames (173), and the first battery pack (171) is placed on the bracket (172); and a rubber shock-absorbing pad (174) is arranged between the connecting frame (173) and the bracket (172).

6. The long-range fuel cell tractor according to claim 4, characterized in that: The long-range fuel cell tractor (100) further comprises a battery assembly module (180), wherein the battery assembly module (180) is arranged on a side edge of the vehicle frame (101) and is arranged side by side with the high-voltage assembly module (140).

7. The long-range fuel cell tractor according to claim 6, characterized in that: The battery management system comprises a mid-axle electric drive controller (181) and a rear-axle electric drive controller (182); the battery assembly module (180) further comprises a first bracket (183), a low-voltage lithium-ion battery (184) and a second battery pack (185); the second battery pack (185) is connected in parallel with the first battery pack (171) and is electrically connected to the high-voltage box; the low-voltage lithium-ion battery (184) is electrically connected to the integrated controller (142); the first bracket (183) comprises a first body (1831) and a second battery pack (185) arranged on the first body The first body (1831) comprises a first connecting arm (1832) on the side edge, the first body (1831) is connected to the frame (101) through the first connecting arm (1832), and the first connecting arm (1832) is vertically arranged to the frame (101); the first body (1831) comprises a plurality of placement layers stacked in a vertical direction, the mid-axle electric drive controller (181), the rear-axle electric drive controller (182), the low-voltage lithium-ion battery (184) and the second battery pack (185) are respectively placed in the placement layers.

8. The long-range fuel cell tractor according to claim 5, characterized in that: The long-range fuel cell tractor (100) further comprises a brake combination module (190), wherein the brake combination module (190) is arranged on the vehicle frame (101) and is located between the hydrogen supply system (120) and the trailer (300), and the top of the brake combination module (190) is not shielded from the long-range fuel cell tractor.

9. The long-range fuel cell tractor according to claim 8, characterized in that: The brake assembly module (190) comprises a welding bracket (193), and the two sides of the welding bracket (193) are respectively fixedly connected to the two cross beams (1011); the brake assembly module (190) comprises a brake air compressor (191) and an air reservoir assembly (192) connected to each other, the brake air compressor (191) is placed on the top surface of the welding bracket (193), and the air reservoir assembly (192) is placed on a side of the welding bracket (193) away from the brake air compressor (191).

10. The long-range fuel cell tractor according to claim 1, characterized in that: The high-voltage combination module (140) further comprises a second bracket (143), the second bracket (143) comprising a second body (1431) and a second connecting arm (1432) arranged on the side edge of the second body (1431), the second body (1431) being connected to the frame (101) via the second connecting arm (1432), and the second connecting arm (1432) being arranged perpendicular to the frame (101); the second body (1431) comprises two placement layers stacked in a vertical direction, and the integrated controller (142) and the high-voltage box (141) are respectively arranged in the two placement layers.

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