Chassis arrangement structure of hydrogen fuel cell tractor

Abstract

The invention discloses a chassis arrangement structure of a hydrogen fuel cell tractor. The chassis arrangement structure comprises a frame, a bottle rack, a fuel cell radiator, a high-pressure accessory and a plurality of hydrogen conveying bottles, the frame is sequentially provided with a cab position, a gas cylinder position and a cargo compartment position in the longitudinal direction. The cylinder rack is arranged at the gas cylinder position and located on the upper end face of the frame, and a mounting end is arranged on one side of the frame in the transverse direction; the plurality of hydrogen storage bottles are mounted on the bottle rack and are sequentially arranged in the vertical direction, and the hydrogen storage bottles are arranged in the width direction of the frame; the fuel cell radiator comprises a refrigeration main body and a cooling fluid pipeline, the refrigeration main body is mounted at the mounting end, and the cooling fluid pipeline is connected with the refrigeration main body; and the high-pressure accessory is mounted on one side of the frame in the transverse direction and avoids the bottle rack, the hydrogen storage bottle, the refrigeration main body and the cooling fluid pipeline. According to the scheme, the length of the hydrogen storage system in the whole vehicle driving direction is greatly reduced, the main hanging gap is increased, the adaptation rate of a trailer is increased, the space utilization rate of a frame is increased, and the maintenance convenience of high-pressure accessories is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chassis arrangement of a hydrogen fuel cell tractor, and in particular to a chassis arrangement structure of a hydrogen fuel cell tractor. Background Art

[0002] Compared with pure electric vehicles, hydrogen fuel vehicles have advantages such as long driving range and short hydrogen refueling time, and are the focus of future new energy vehicle development. Patent CN116476578A discloses an integrated hydrogen storage fuel cell tractor, which has a hydrogen storage frame in the middle of the main frame, a cab on the top of the hydrogen storage frame, a hydrogen storage system in the hydrogen storage frame, a subframe at the bottom of the main frame, the subframe is connected to the main frame through multiple U-shaped pocket beams, a walking system is provided at the bottom of the subframe, and a saddle support beam is provided on the outer side of the left and right longitudinal beams at the rear of the main frame, respectively. The power generation system is located below the cab and on one side of the hydrogen storage frame, and the power generation system includes a fuel cell stack, an air compressor, an intercooler, a humidifier, a back pressure valve, and a DC / DC converter.

[0003] However, the hydrogen storage bottle in this patent is arranged along the longitudinal direction of the frame, occupying too much space in the driving direction of the vehicle, resulting in the risk of dynamic interference of the trailer under certain working conditions, which in turn leads to low matching degree of the trailer; in addition, some high-voltage accessories are arranged in the middle of the frame and are blocked by the hydrogen storage system, which will cause maintenance difficulties. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and propose a chassis layout structure for a hydrogen fuel cell tractor to solve the technical problems in the prior art that the hydrogen storage bottle occupies too much space in the driving direction of the whole vehicle and some high-voltage accessories are blocked by the hydrogen storage system, resulting in difficulty in maintenance.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a chassis arrangement structure of a hydrogen fuel cell tractor, comprising: The frame is provided with a cab position, a gas cylinder position and a cargo compartment position in sequence along the longitudinal direction; A bottle rack, arranged at the gas cylinder position and located on the upper end surface of the frame, and having a mounting end on one side in the transverse direction of the frame; A plurality of hydrogen storage bottles are mounted on the bottle rack and arranged in sequence along the vertical direction, and each of the hydrogen storage bottles is arranged along the width direction of the frame; A fuel cell radiator, comprising a refrigeration body and a cooling fluid pipeline, wherein the refrigeration body is mounted on the mounting end, and the cooling fluid pipeline is connected to the refrigeration body to cool a heat source; and The high-pressure accessory is installed on one side of the frame in the lateral direction and avoids the bottle rack, the hydrogen storage bottle, the refrigeration body and the cooling fluid pipeline.

[0006] In some embodiments, the chassis arrangement structure of the hydrogen fuel cell tractor further includes a battery bracket and a power battery module, wherein the battery bracket is arranged on one side of the frame in the lateral direction and has two layers, and avoids the bottle rack, the hydrogen storage bottle, the refrigeration body and the cooling fluid pipeline; Wherein, the high-voltage accessories are at least partially arranged on the upper layer of the battery bracket, and the power battery module is arranged on the lower layer of the battery bracket.

[0007] In some embodiments, the battery holder is located on a side of the bottle rack away from the cab position; The high-voltage accessories include an all-in-one controller, a high-voltage distribution box and a high-voltage charging seat. The all-in-one controller and the high-voltage distribution box are arranged on the upper layer of the battery bracket and are arranged in sequence in a direction away from the bottle rack. The high-voltage charging seat is arranged below the bottle rack.

[0008] In some embodiments, the battery bracket is provided with two groups, and the two groups of battery brackets are respectively arranged on both sides of the frame in the transverse direction, and the power battery module is provided with two groups, and the two groups of power battery modules are respectively arranged in the lower layers of the two groups of battery brackets; The chassis layout structure of the hydrogen fuel cell tractor also includes a low-voltage battery, a low-voltage distribution box, a low-voltage control box and an auxiliary DC-DC converter. The low-voltage battery, the low-voltage distribution box, the low-voltage control box and the auxiliary DC-DC converter are arranged on the upper layer of one of the battery racks and are arranged in sequence in a direction away from the bottle rack. The all-in-one controller and the high-voltage distribution box are arranged on another of the battery racks.

[0009] In some embodiments, the vehicle frame is provided with a brake air compressor and an air cylinder on the side away from the high-voltage charging seat. The brake air compressor and the air cylinder are located below the bottle rack and are arranged downward in sequence and are located on the side of the adjacent battery bracket close to the bottle rack.

[0010] In some embodiments, the cab position is provided with a motor radiator, a fuel cell system, a front axle system and an integrated temperature control unit in sequence along the direction close to the gas cylinder position, the integrated temperature control unit is located on one side of the frame in the transverse direction, and the cargo compartment position is provided with a middle electric drive axle and a rear electric drive axle in sequence along the direction away from the gas cylinder position; Wherein, the cooling fluid conduit is in heat transfer contact with the fuel cell system.

[0011] In some embodiments, the compressor of the integrated temperature control unit is shared by the cab air conditioning and the power battery cooling system.

[0012] In some embodiments, the refrigeration body is provided with a plurality of mounting holes spaced apart along its circumference, and the bottle rack is provided with a plurality of connecting holes corresponding to the mounting holes; The chassis arrangement structure of the hydrogen fuel cell tractor further includes a plurality of mounting bolts and a plurality of mounting nuts, wherein the mounting bolts are sequentially passed through the mounting holes and the connecting holes, and the mounting nuts are screwed on one end of the corresponding mounting bolt extending out of the connecting hole.

[0013] In some embodiments, one of the refrigeration body and the bottle rack is provided with a positioning hole, and the other is provided with a positioning boss corresponding to the positioning hole, and the positioning boss can be inserted into the positioning hole.

[0014] In some embodiments, the positioning bosses and the positioning holes are provided in a plurality of groups, at least one group of the positioning bosses is magnetic, and the inner walls of the corresponding positioning holes can be magnetically attracted by the magnetic positioning bosses.

[0015] Compared with the prior art, in the chassis layout structure of the hydrogen fuel cell tractor provided by the present invention, the frame is provided with a cab position, a gas bottle position and a cargo compartment position in sequence along its longitudinal direction, so as to provide the cab, the bottle rack and the cargo compartment for installation in sequence. That is, the bottle rack is installed behind the cab, and at the same time, a plurality of hydrogen storage bottles are arranged in a single row in the bottle rack in the vertical direction, and each bottle rack is arranged along the width direction of the frame, thereby greatly reducing the length of the hydrogen storage system in the driving direction of the whole vehicle, increasing the main hanging gap, and improving the adaptation rate of the trailer. In addition, the refrigeration body of the fuel cell radiator is integrated into the mounting end of the side of the bottle rack to facilitate personnel access and maintenance, and to avoid the fuel cell radiator occupying the frame space, thereby improving the space utilization rate of the frame. Furthermore, in this scheme, the high-voltage accessories are installed on the side end of the frame, and the hydrogen storage system is avoided, so that the high-voltage accessories are not blocked, which greatly improves the maintenance convenience of the high-voltage accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view of a chassis arrangement structure of a hydrogen fuel cell tractor provided by an embodiment of the present invention; Figure 2 yes Figure 1 A top view of the chassis layout of the hydrogen fuel cell tractor (cab not shown); Figure 3 yes Figure 1 Partial schematic diagram of the middle bottle rack, hydrogen storage bottle and vehicle frame; Figure 4 yes Figure 1 A rear view of the chassis layout of the hydrogen fuel cell tractor; Figure 5 yes Figure 4 Schematic diagram of the refrigeration body; Figure 6 yes Figure 5 Schematic diagram of the refrigeration body from another angle.

[0017] Description of reference numerals: 1. Frame; 11. Cab position; 12. Gas cylinder position; 13. Cargo compartment position; 2. Bottle rack; 2a. Connection hole; 21. Mounting end; 22. Positioning boss; 3. Hydrogen storage bottle; 4. Refrigeration body; 4a. Mounting hole; 4b. Positioning hole; 41. Tripod; 5. High-voltage accessories; 51. All-in-one controller; 52. High-voltage distribution box; 53. High-voltage charging seat; 6. Battery bracket; 7. Integrated temperature control unit; 8. Power battery module; 9. Low-voltage battery; 91. Low-voltage distribution box; 92. Low-voltage control box; 93. Auxiliary DC-DC converter; 94. Brake air compressor; 95. Air tank; 96. Motor radiator; 97. Fuel cell system; 98. Front axle system; 201. Middle drive axle; 202. Rear drive axle; 30. Cab. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to solve the technical problems that the hydrogen storage bottle occupies too long a space in the driving direction of the whole vehicle and some high-voltage accessories are blocked by the hydrogen storage system, resulting in difficulty in maintenance, the present invention provides a chassis layout structure of a hydrogen fuel cell tractor, which can greatly reduce the length of the hydrogen storage system in the driving direction of the whole vehicle, increase the main trailer gap, and improve the adaptability of the trailer; the refrigeration body of the fuel cell radiator is integrated into the mounting end on the side of the bottle rack to facilitate personnel access and maintenance, and avoid the fuel cell radiator occupying the frame space, thereby improving the space utilization rate of the frame; and the high-voltage accessories are not blocked, which greatly improves the maintenance convenience of the high-voltage accessories.

[0020] See also Figures 1 to 4 , Figures 1 to 4The present invention is a schematic diagram of the chassis arrangement structure of a hydrogen fuel cell tractor in an embodiment of the present invention. The chassis arrangement structure of the hydrogen fuel cell tractor includes a vehicle frame 1, a bottle rack 2, a fuel cell radiator, a high-pressure accessory 5 and a plurality of hydrogen bottles; the vehicle frame 1 is provided with a cab position 11, a gas bottle position 12 and a cargo compartment position 13 in sequence along the longitudinal direction; the bottle rack 2 is provided at the gas bottle position 12 and is located on the upper end surface of the vehicle frame 1, and has a mounting end 21 on one side of the vehicle frame 1 in the transverse direction; a plurality of hydrogen storage bottles 3 are installed on the bottle rack 2 and are arranged in sequence along the vertical direction, and each hydrogen storage bottle 3 is arranged along the width direction of the vehicle frame 1; the fuel cell radiator includes a refrigeration body 4 and a cooling fluid pipeline, the refrigeration body 4 is installed at the mounting end 21, and the cooling fluid pipeline is connected to the refrigeration body 4 for cooling the heat source; the high-pressure accessory 5 is installed on one side of the vehicle frame 1 in the transverse direction, and avoids the bottle rack 2, the hydrogen storage bottle 3, the refrigeration body 4 and the cooling fluid pipeline.

[0021] In the chassis layout structure of the hydrogen fuel cell tractor provided by the present invention, the frame 1 is provided with a cab position 11, a gas bottle position 12 and a cargo compartment position 13 in sequence along its longitudinal direction, so as to provide the cab 30, the bottle rack 2 and the cargo compartment for installation in sequence. That is, the bottle rack 2 is installed behind the cab 30, and at the same time, a plurality of hydrogen storage bottles 3 are arranged in a single row in the bottle rack 2 in the vertical direction, and each bottle rack 2 is arranged horizontally along the frame 1, thereby greatly reducing the length of the hydrogen storage system in the driving direction of the whole vehicle, increasing the main hanging gap, and improving the adaptation rate of the trailer. In addition, the refrigeration body 4 of the fuel cell radiator is integrated into the mounting end 21 on the side of the bottle rack 2, so as to facilitate personnel contact and maintenance, and avoid the fuel cell radiator occupying the space of the frame 1, thereby improving the space utilization rate of the frame 1. Furthermore, in this scheme, the high-voltage accessory 5 is installed at the side end of the frame 1, and the hydrogen storage system is avoided, so that the high-voltage accessory 5 is not blocked, which greatly improves the maintenance convenience of the high-voltage accessory 5. It should be noted that the longitudinal direction of the frame 1 refers to the direction when the vehicle is normally traveling in the front-rear direction, and the transverse direction of the frame refers to the left-right direction of the vehicle, and the width direction of the frame is the same as its transverse direction.

[0022] In one embodiment, the chassis layout structure of the hydrogen fuel cell tractor also includes a battery bracket 6 and a power battery module 8. The battery bracket 6 is arranged on one side of the frame 1 in the horizontal direction, and has an upper and lower layer, and avoids the bottle rack 2, the hydrogen storage bottle 3, the refrigeration body 4 and the cooling fluid pipeline; wherein the high-voltage accessory 5 is at least partially arranged on the upper layer of the battery bracket 6, and the power battery module 8 is arranged on the lower layer of the battery bracket 6.

[0023] In this embodiment, a double-layer battery bracket 6 is arranged on one side of the frame 1 in the horizontal direction, and at least part of the components of the high-voltage accessories 5 and the power battery module 8 are integrated and installed on the battery bracket 6, which is convenient for personnel maintenance on the one hand, and further improves the space utilization of the frame 1 on the other hand.

[0024] In one embodiment, the battery holder 6 is located on the side of the bottle holder 2 away from the cab position 11; the high-voltage accessory 5 includes an all-in-one controller 51, a high-voltage distribution box 52 and a high-voltage charging seat 53, the all-in-one controller 51 and the high-voltage distribution box 52 are arranged on the upper layer of the battery holder 6, and are arranged in sequence in the direction away from the bottle holder 2, and the high-voltage charging seat 53 is arranged below the bottle holder 2.

[0025] In this embodiment, the all-in-one controller 51 and the high-voltage distribution box 52 of the high-voltage accessory 5 are placed on the battery bracket 6, and the high-voltage charging seat 53 is directly placed on the side end of the frame 1 and arranged below the bottle rack 2, so that the overall space layout is more reasonable.

[0026] In one embodiment, two groups of battery brackets 6 are provided, and the two groups of battery brackets 6 are respectively arranged on both sides of the frame 1 in the horizontal direction, and two groups of power battery modules 8 are provided, and the two groups of power battery modules 8 are respectively arranged in the lower layer of the two groups of battery brackets 6; the chassis layout structure of the hydrogen fuel cell tractor also includes a low-voltage battery 9, a low-voltage power distribution box 91, a low-voltage control box 92 and an auxiliary DC-DC converter 93, the low-voltage battery 9, the low-voltage power distribution box 91, the low-voltage control box 92 and the auxiliary DC-DC converter 93 are arranged on the upper layer of a battery bracket 6, and are arranged in sequence in the direction away from the bottle rack 2, and the all-in-one controller 51 and the high-voltage power distribution box 52 are arranged on another battery bracket 6.

[0027] In this embodiment, a battery bracket 6 is provided on both sides of the frame 1 in the horizontal direction, and two groups of power battery modules 8 are provided correspondingly, so as to improve the passability of the whole vehicle and greatly increase the adaptability of the trailer. At the same time, the vehicle meets the high-speed transportation scenario of the tractor, the power battery will not be depleted, and the transportation efficiency is improved.

[0028] In one embodiment, a brake air compressor 94 and an air cylinder 95 are provided on the side of the vehicle frame 1 away from the high-voltage charging seat 53. The brake air compressor 94 and the air cylinder 95 are located below the bottle rack 2 and are arranged downward in sequence and are located on the side of the adjacent battery holder 6 close to the bottle rack 2.

[0029] In this embodiment, a brake air compressor 94 and an air tank 95 are arranged on the left front half of the frame 1, and a high-voltage charging seat 53 is arranged on the right front half of the frame 1. The brake air compressor 94, the air tank 95 and the high-voltage charging seat 53 are all arranged below the hydrogen storage system. The space arrangement is reasonable, and the above-mentioned components can be exposed to the outside for easy maintenance.

[0030] In one embodiment, the cab position 11 is provided with a motor radiator 96, a fuel cell system 97, a front axle system 98 and an integrated temperature control unit 7 in sequence along the direction close to the gas cylinder position 12, and the integrated temperature control unit 7 is located on one side of the frame 1 in the lateral direction, and the cargo compartment position 13 is provided with a middle electric drive axle and a rear electric drive axle in sequence along the direction away from the gas cylinder position 12; wherein the cooling fluid pipeline is in heat transfer contact with the fuel cell system 97.

[0031] In this embodiment, the integrated temperature control unit 7 is arranged on the upper right wing surface of the frame 1, and an electric steering oil pump is arranged on the upper left wing surface of the frame 1. In addition, a traction saddle is arranged above the middle electric drive axle and the rear electric drive axle.

[0032] In one embodiment, the compressor of the integrated temperature control unit 7 is shared by the air conditioning of the cab 30 and the power battery cooling system.

[0033] In this embodiment, the air conditioner of the cab 30 and the power battery cooling system share a compressor so that they can together form an integrated temperature control unit 7, reduce components, and improve the space utilization of the chassis layout.

[0034] In one of the embodiments, the refrigeration body 4 is provided with a plurality of mounting holes 4a at intervals along its circumference, and the bottle rack 2 is provided with a plurality of connecting holes 2a corresponding to the mounting holes 4a; the chassis arrangement structure of the hydrogen fuel cell tractor also includes a plurality of mounting bolts and a plurality of mounting nuts, the mounting bolts are sequentially passed through the mounting holes 4a and the connecting holes 2a, and the mounting nuts are screwed on one end of the corresponding mounting bolt extending out of the connecting hole 2a.

[0035] In this embodiment, the fuel cell radiator is installed on the bottle rack 2 by the cooperation of the mounting bolts, mounting nuts, mounting holes 4a and connecting holes 2a, and the structure is stable and reliable. It should be noted that the mounting holes 4a and connecting holes 2a are both set in the form of oval holes. In addition, a plurality of mounting plates are convexly provided at the end edge of the refrigeration body 4, the mounting holes 4a are formed on the mounting plates, and the bottle rack 2 body is provided with connecting plates corresponding to the mounting plates, and the connecting holes 2a are formed on the connecting plates.

[0036] In one embodiment, see Figure 3 , Figure 5 and Figure 6 One of the refrigeration body 4 and the bottle rack 2 is provided with a positioning hole 4b, and the other corresponding to the positioning hole 4b is provided with a positioning boss 22, and the positioning boss 22 can be inserted into the positioning hole 4b.

[0037] In this embodiment, when assembling the fuel cell radiator, first align the positioning hole 4b of the refrigeration body 4 with the positioning boss 22, and then move the refrigeration body 4 close to the bottle rack 2 so that the positioning boss 22 extends into the positioning hole 4b, which plays a positioning role on the refrigeration body 4, ensures that the mounting hole 4a is aligned with the connecting hole 2a, and improves the convenience of assembly. In addition, in this embodiment, two tripods 41 are provided at the upper end of the refrigeration body 4, and the two tripods 41 are arranged at intervals to facilitate lifting and ensure lifting balance.

[0038] In one embodiment, there are multiple groups of positioning bosses 22 and positioning holes 4 b , at least one group of positioning bosses 22 is magnetic, and the inner wall of the corresponding positioning hole 4 b can be magnetically attracted by the magnetic positioning bosses 22 .

[0039] In this embodiment, when the refrigeration body 4 of the fuel cell radiator is assembled and the refrigeration body 4 is brought close to the bottle rack 2, the positioning boss 22 can magnetically absorb the inner wall of the positioning hole 4b to automatically adsorb and accurately position, further improving the convenience of assembly. It should be noted that in one embodiment, a group of positioning bosses 22 can also be set in a conical form to play a guiding role.

[0040] In order to better understand the present invention, the following Figures 1 to 6 The technical solution of the present invention is described in detail: In this embodiment, a hydrogen storage system and a fuel cell radiator are integrated. The air-conditioning compressor of the cab 30 and a power battery cooling unit are integrated. After integration, they are arranged between the upper right side of the frame 1 and the lower wing surface of the cab 30. At the same time, the high-voltage accessories 5 at the bottom of the hydrogen storage system are eliminated, and all the high-voltage accessories 5 are arranged on the side of the frame 1 without any obstruction to the bottom of the hydrogen storage system.

[0041] The integrated hydrogen storage system integrates the hydrogen storage bottle 3, the bottle rack 2 and the fuel cell radiator, and adopts a single-row large bottle group solution with a capacity of 4*390L. The fuel cell radiator is arranged on the side of the bottle rack 2, and the overall outer width is ensured not to exceed the regulatory requirements. A grille is opened on the skin of the bottle rack 2 on the side where the fuel cell radiator is arranged to ensure heat dissipation.

[0042] Since the fuel cell radiator is arranged on the side of the bottle rack 2 of the hydrogen storage system and the overall outer length is relatively long, close to 2.5m, it will affect the operator's judgment on hoisting and precise positioning. Therefore, a relatively simple device that can automatically and accurately position is required to ensure installation convenience and improve efficiency.

[0043] To this end, the cooling body 4 of the fuel cell radiator adopts an eight-point fixing form, and when the fuel cell radiator falls and contacts, it can be automatically positioned through the positioning boss 22 and the positioning hole 4b, and after positioning, the cooling body 4 is restricted from moving radially on the positioning boss 22, which is convenient for installation. Specifically, two oval holes are respectively opened on the upper end, left side and right side of the cooling body 4, and are respectively fixed with bolts and nuts on the top, left side and right side of the bottle rack 2.

[0044] Specifically, after the fuel cell radiator is brought close to the hydrogen storage system, a magnetic positioning groove structure is used for automatic adsorption and precise positioning. In addition, a circular boss structure is used to facilitate synchronous fitting and precise positioning of the integrated solution.

[0045] Two mounting tripods 41 are used on the top of the refrigeration body 4 to facilitate direct hooking during hoisting, thereby maintaining the left-right balance of the battery system radiator and further facilitating the left-right alignment of the fuel cell radiator and the bottle rack 2 of the hydrogen storage system.

[0046] Among them, the bottle rack 2 is arranged with two matching conical guide structures, both of which are made of metal, and there is a magnetic boss inside the conical guide structure on the side of the bottle rack 2. When the fuel cell radiator is close enough to the bottle rack 2, the fuel cell radiator can be attracted by magnetic force. The cone provides good axial guidance and can better accommodate alignment deviations.

[0047] The integrated temperature control unit 7 integrates the air-conditioning compressor originally arranged on the side of the frame 1 and under the cab 30 with the compressor of the power battery cooling system to share a compressor, which is integrated into a new power battery water cooling unit. The newly integrated water cooling unit is arranged in the space between the lower wing surface on the right side of the frame 1 and under the cab 30, that is, the integrated temperature control unit 7 is an integrated water cooling unit.

[0048] The conventional scheme of placing the all-in-one controller 51 and the high-voltage distribution box 52 at the bottom of the hydrogen storage system is cancelled. Instead, the high-voltage distribution box 52 and the all-in-one controller 51 are placed above the battery holder 6 on the right side of the frame 1, and no part of the upper plane of the battery holder 6 on both sides of the frame 1 is blocked by the bottom of the bottle holder 2 of the hydrogen storage system, so as to facilitate maintenance.

[0049] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A chassis layout structure of a hydrogen fuel cell tractor, characterized in that: include: The frame is provided with a cab position, a gas cylinder position and a cargo compartment position in sequence along the longitudinal direction; A bottle rack, arranged at the gas bottle position and located on the upper end surface of the frame, and having a mounting end on one side in the lateral direction of the frame; A plurality of hydrogen storage bottles are mounted on the bottle rack and arranged in sequence along the vertical direction, and each of the hydrogen storage bottles is arranged along the width direction of the frame; A fuel cell radiator, comprising a refrigeration body and a cooling fluid pipeline, wherein the refrigeration body is mounted on the mounting end, and the cooling fluid pipeline is connected to the refrigeration body to cool a heat source; and The high-pressure accessory is installed on one side of the frame in the lateral direction and avoids the bottle rack, the hydrogen storage bottle, the refrigeration body and the cooling fluid pipeline.

2. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 1 is characterized in that: The chassis arrangement structure of the hydrogen fuel cell tractor also includes a battery bracket and a power battery module. The battery bracket is arranged on one side of the frame in the transverse direction and has two layers, and avoids the bottle rack, the hydrogen storage bottle, the refrigeration body and the cooling fluid pipeline; Wherein, the high-voltage accessories are at least partially arranged on the upper layer of the battery bracket, and the power battery module is arranged on the lower layer of the battery bracket.

3. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 2 is characterized in that: The battery bracket is located on a side of the bottle rack away from the cab; The high-voltage accessories include an all-in-one controller, a high-voltage distribution box and a high-voltage charging seat. The all-in-one controller and the high-voltage distribution box are arranged on the upper layer of the battery bracket and are arranged in sequence in a direction away from the bottle rack. The high-voltage charging seat is arranged below the bottle rack.

4. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 3 is characterized in that: The battery brackets are provided with two groups, and the two groups of battery brackets are respectively arranged on both sides of the frame in the transverse direction; the power battery modules are provided with two groups, and the two groups of power battery modules are respectively arranged on the lower layers of the two groups of battery brackets; The chassis layout structure of the hydrogen fuel cell tractor also includes a low-voltage battery, a low-voltage distribution box, a low-voltage control box and an auxiliary DC-DC converter. The low-voltage battery, the low-voltage distribution box, the low-voltage control box and the auxiliary DC-DC converter are arranged on the upper layer of one of the battery racks and are arranged in sequence in a direction away from the bottle rack. The all-in-one controller and the high-voltage distribution box are arranged on another of the battery racks.

5. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 4, characterized in that: The frame is provided with a brake air compressor and an air cylinder on a side away from the high-voltage charging seat. The brake air compressor and the air cylinder are located below the bottle rack and are arranged downward in sequence and are located on a side of the adjacent battery bracket close to the bottle rack.

6. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 1, characterized in that: The cab position is provided with a motor radiator, a fuel cell system, a front axle system and an integrated temperature control unit in sequence along the direction close to the gas cylinder position, and the integrated temperature control unit is located on one side of the frame in the transverse direction, and the cargo compartment position is provided with a middle electric drive axle and a rear electric drive axle in sequence along the direction away from the gas cylinder position; Wherein, the cooling fluid conduit is in heat transfer contact with the fuel cell system.

7. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 6, characterized in that: The compressor of the integrated temperature control unit is shared by the cab air conditioning and power battery cooling system.

8. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 1, characterized in that: The refrigeration body is provided with a plurality of mounting holes at intervals along its circumference, and the bottle rack is provided with a plurality of connecting holes corresponding to the mounting holes; The chassis arrangement structure of the hydrogen fuel cell tractor further includes a plurality of mounting bolts and a plurality of mounting nuts, wherein the mounting bolts are sequentially passed through the mounting holes and the connecting holes, and the mounting nuts are screwed on one end of the corresponding mounting bolt extending out of the connecting hole.

9. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 8, characterized in that: One of the refrigeration main body and the bottle rack is provided with a positioning hole, and the other is provided with a positioning boss corresponding to the positioning hole, and the positioning boss can be inserted into the positioning hole.

10. The chassis arrangement structure of the hydrogen fuel cell tractor according to claim 9, characterized in that: The positioning bosses and the positioning holes are provided in a plurality of groups, at least one group of the positioning bosses is magnetic, and the inner walls of the corresponding positioning holes can be magnetically attracted by the magnetic positioning bosses.

Images