A hydrogen fuel heavy truck

Abstract

The present invention discloses a hydrogen fuel heavy-duty truck, which includes a cockpit assembly, a chassis assembly, an energy assembly, a suspension assembly, and a wheel assembly; the cockpit assembly is mounted on the chassis assembly; the chassis assembly includes a bearing seat, a base, and a lower mounting seat; the bearing seat includes a bearing plate and a first connecting assembly; the base and the lower mounting seat are both truss structures; the base is fixed to the top of the bearing plate; the lower mounting seat is installed with a battery pack and a control device; the energy assembly includes an upper mounting seat, a locking piece, and a hydrogen tank; the upper mounting seat is fixed to the base, the upper mounting seat includes a plurality of first mounting spaces, each of which is equipped with a hydrogen tank; the suspension assembly is mounted on the bearing seat. The present invention makes the heavy-duty truck chassis lighter and consumes less energy; at the same time, the present invention has little impact on the load space of the heavy-duty truck while allowing more hydrogen tanks to be arranged, thereby giving the heavy-duty truck a longer cruising range.

Description

Technical Field

[0001] The present invention relates to the technical field of trucks, and in particular to a hydrogen fuel heavy-duty truck. Background Art

[0002] The chassis is an important load-bearing component of heavy-duty trucks. It needs to bear the weight of the powertrain, body and other parts, as well as various stresses and torques transmitted to it. Therefore, the chassis should have sufficient rigidity. In addition, in order to reduce the energy consumption of the entire heavy-duty truck during use, the chassis should be as lightweight as possible while ensuring sufficient rigidity and safety performance.

[0003] The chassis of most existing heavy-duty trucks utilize a square steel beam structure, where several crossbeams are welded between two longitudinal beams, and auxiliary beams such as battery and equipment mounts are welded to the longitudinal and crossbeams. This structure results in a heavy chassis and consumes a lot of energy, which is inconsistent with the development trend of lightweight chassis. Furthermore, in the heavy-duty truck industry, due to the specific nature of its operations (heavy loads, high power, and long driving distances), heavy-duty trucks are preferably fuel-powered to meet these requirements. However, fuel-powered trucks are expensive and their exhaust pollutes the environment. While hydrogen fuel is currently used in smaller vehicles, hydrogen tanks occupy a large space, and traditional heavy-duty trucks lack a systematic layout for hydrogen fuel and batteries, making them incapable of meeting long-distance driving requirements.

[0004] Therefore, how to design a lightweight chassis to reduce energy consumption and how to arrange larger hydrogen tanks to meet the working requirements of heavy-duty trucks have become a difficult problem that restricts the cruising range of heavy-duty trucks. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art described above and to provide a hydrogen fuel heavy truck.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A hydrogen fuel heavy truck includes a cab assembly, a chassis assembly, an energy assembly, a suspension assembly, and a wheel assembly;

[0008] The cockpit assembly is mounted on the chassis assembly;

[0009] The chassis assembly includes a bearing seat, a base, and a lower mounting seat. The bearing seat includes a set of bearing plates and a plurality of first connecting components. The first connecting components are used to fix the two bearing plates. The base and the lower mounting seat are both truss structures. The base is fixed on the top of the bearing plate. The lower mounting seat is located below the base and is fixed to the base and the bearing plate. The battery pack and the control device are installed in the lower mounting seat.

[0010] The energy assembly includes an upper mounting seat, a locking member, and a hydrogen tank. The upper mounting seat is fixed to the base and located on the side of the cockpit assembly. The upper mounting seat includes a plurality of mutually separated first mounting spaces. Each of the first mounting spaces is provided with a set of the locking members. The first mounting spaces are each provided with a hydrogen tank, and each hydrogen tank is fixed to the upper mounting seat by the locking member.

[0011] The suspension assembly is mounted on the bearing seat;

[0012] The wheel assembly is mounted on the suspension assembly.

[0013] Preferably, the cockpit assembly includes a front enclosure frame and a front enclosure guard surface; side brackets are respectively provided on the left and right sides of the front end of the front enclosure frame, a lower bracket is provided on the lower side of the front end of the front enclosure frame, and an upper bracket is provided on the upper side of the front end of the front enclosure frame; the front enclosure guard surface includes a side guard plate assembly, a lower guard plate assembly and an upper guard plate assembly, the side guard plate assembly is provided on the side bracket and can be opened outward relative to the front enclosure frame, the lower guard plate assembly is provided on the lower bracket and can be opened downward relative to the front enclosure frame, and the upper guard plate assembly is provided on the upper bracket and can be opened upward relative to the front enclosure frame.

[0014] Preferably, the side guard assembly includes a side guard, a first hinge and a first buckle, the side guard is detachably connected to the side bracket via the first hinge, the front panel frame is provided with a first buckle on one side of the side bracket, and the first buckle can be engaged with the first buckle when the side guard is rotated;

[0015] The lower guard plate assembly includes a lower guard plate, a second hinge and a second buckle. The lower guard plate is detachably connected to the lower bracket via the second hinge. The lower bracket is provided with a group of support rods, and the support rods are provided with a second buckle and the first buckle. When the lower guard plate is rotated, the second buckle can be engaged with the second buckle.

[0016] The upper guard plate assembly includes an upper guard plate and a gas spring. The upper guard plate is hinged in the upper bracket. The bottom end of the gas spring is arranged on the front frame, and the upper end is connected to the upper guard plate.

[0017] Preferably, the cockpit assembly also includes a cockpit door and a step device; the cockpit door is arranged on the side of the front panel frame; the step device is arranged below the cockpit door, and includes a side panel, a first step board, a second step board and a driving mechanism, the side panel is fixedly arranged on the front panel frame, and a receiving opening is provided on the side panel, the first step board and the second step board are arranged in the receiving opening from bottom to top, and the rear ends of the first step board and the second step board can rotate relative to the side panel, the driving mechanism includes a driving member and a linkage member, the driving member is arranged between the front panel frame and the first step board, and the second step board moves synchronously with the first step board through the linkage member to open / close the receiving opening.

[0018] Preferably, the supporting plate is a U-shaped structure; the first connecting component includes a front connecting member, a rear connecting member and several middle connecting members, the front connecting member and the rear connecting member are respectively arranged at the front and rear ends of the supporting plate, and the supporting plate is provided with the middle connecting member at its middle position and near the rear connecting member; the lower mounting seat includes a first mounting space and several second mounting spaces, the first mounting space is located in the middle of the lower mounting seat, the supporting plate is passed through and fixed in the first mounting space, the second mounting space is located on both sides of the first mounting space, and the second mounting space is used to install the battery pack and control equipment.

[0019] Preferably, the base includes a supporting truss and a top truss, the supporting truss is fixedly connected to the bearing plate, and the top truss is provided on the top of the supporting truss; the lower mounting seat includes a bottom truss, side trusses, an upper truss and a side partition, the side trusses are respectively fixed on both sides above the bottom truss, the upper truss is fixed above the side truss and fixedly connected to the supporting truss, two side partitions are fixed between the two side trusses, and the space between the two side partitions and the bottom truss and the upper truss is the first installation space, the bearing plate is fixedly connected to the side partition, and the space between the side partition, adjacent side trusses and the bottom truss and the upper truss is the second installation space.

[0020] Preferably, the upper mounting seat includes an outer frame, a longitudinal partition frame and a vertical partition frame. A plurality of the longitudinal partition frames are provided along the longitudinal direction of the outer frame, and a plurality of the vertical partition frames are provided along the vertical direction. The longitudinal partition frames and the vertical partition frames are cross-arranged to form each first mounting space; the locking piece includes a lower positioning seat, a locking seat, a holding ring and a connecting rod. The lower positioning seat is fixed on the longitudinal partition frame, and the top shape thereof is adapted to the shape of the hydrogen tank. The locking seats are respectively provided at both ends of the lower positioning seat, and the holding ring is connected to the outside of the hydrogen tank. The connecting rods are respectively provided at both ends of the holding ring, and the hydrogen tank is fixed in the lower positioning seat through the detachable connection between the connecting rod and the locking seat.

[0021] Preferably, the longitudinal partition frame includes several vertical beams and several cross beams, the vertical beams are arranged at equal intervals along the transverse direction of the outer frame, and the cross beams are arranged at equal intervals along the length direction of the vertical beams. The vertical partition frame includes several longitudinal beams, and the longitudinal beams are arranged at equal intervals along the transverse direction of the outer frame; the connecting rod is hinged to the end of the holding ring, and the connecting rod is processed with an external thread. After the connecting rod is inserted into the locking seat, it is connected and fixed by a nut screwed thereto.

[0022] Preferably, the suspension assembly includes a front airbag bearing assembly and a rear airbag bearing assembly respectively installed at the front and rear ends of the bearing seat; the front airbag bearing assembly includes a first airbag assembly, a second airbag assembly and a second connecting assembly; the bearing seat includes a first bearing plate and a second bearing plate arranged parallel to each other, the first airbag assembly includes a first airbag, a first bracket and a first bottom plate, the top of the first airbag is connected to the bottom of the first bearing plate, the first bracket is fixed to the bottom of the first bearing plate, the first bottom plate is hinged to the first bracket, the second airbag assembly includes a second airbag, a second bracket and a second bottom plate, the top of the second airbag is connected to the bottom of the second bearing plate, the second bracket is fixed to the bottom of the second bearing plate, the second bottom plate is hinged to the second bracket, and the second connecting assembly is arranged between the first bearing plate and the second bearing plate, for making the first bottom plate and the second bottom plate rise and fall synchronously.

[0023] Preferably, the suspension assembly further includes a shock absorber assembly, the shock absorber assembly including a first shock absorber and a second shock absorber, the lower end of the first shock absorber is provided on the first base plate, and the upper end is hinged to the first bearing plate, the lower end of the second shock absorber is provided on the second base plate, and the upper end is hinged to the second bearing plate;

[0024] The first airbag assembly further includes a first connecting rod, the two ends of which are hinged to the first base plate and the first bracket respectively; the second airbag assembly further includes a second connecting rod, the two ends of which are hinged to the second base plate and the second bracket respectively;

[0025] The second connecting assembly includes a third connecting rod, a fourth connecting rod, a support rod and a bearing seat. The two ends of the third connecting rod are respectively connected to the first base plate and the second base plate. One end of the fourth connecting rod is connected to the second base plate, and the other end is connected to the first bearing plate. The support rod is located between the two ends of the third connecting rod. The upper end of the support rod is fixed to the bearing seat, and the lower end is fixed with the bearing seat. The third connecting rod is rotatably inserted into the bearing seat through a bearing.

[0026] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0027] 1. The bearing seat in the present invention is formed by a group of bearing plates fixedly connected by a first connecting component. The base and the lower mounting seat are both truss structures. The bearing seat, the base and the lower mounting seat are used to replace the existing beam-type square steel structure of the heavy-duty truck chassis, so that the heavy-duty truck chassis is lighter and the energy consumption is lower, which is in line with the development direction of lightweight chassis; at the same time, the upper mounting seat in the present invention is arranged on the side of the cockpit assembly, and the battery pack is arranged in the lower mounting seat. Multiple hydrogen tanks can be fixedly installed in the upper mounting seat to meet the use requirements of long cruising range of heavy-duty trucks. Through the reasonable layout of the upper mounting seat, more hydrogen tanks can be arranged while having little impact on the load space of the heavy-duty truck, so that the heavy-duty truck has a longer cruising range.

[0028] 2. In the present invention, the side guard plate assembly, the lower guard plate assembly and the upper guard plate assembly are all independently installed structures. During maintenance, only the damaged parts need to be replaced, and the maintenance cost is low. At the same time, the side guard plate assembly, the lower guard plate assembly and the upper guard plate assembly are all opened relative to the front frame. During inspection and maintenance, there is no need to disassemble the entire front guard, which greatly reduces the difficulty of inspecting and maintaining the front guard of the truck and is very convenient to operate.

[0029] 3. The first tread and the second tread in the present invention can be rotatably arranged in the accommodating opening and can be flipped by a driving mechanism. When the first tread and the second tread are open, the driver can get on and off the vehicle. When the first tread and the second tread are closed, they can be folded into the accommodating opening, which not only takes up less space on the chassis inside the tread, but also reduces the wind resistance of the folded tread.

[0030] 4. In the present invention, the first airbag assembly and the second airbag assembly are respectively installed on the first supporting plate and the second supporting plate, and the first bottom plate and the second bottom plate are synchronously raised and lowered through the second connecting assembly. The bottom plates of the first airbag assembly and the second airbag assembly are lighter, which reduces the overall weight of the suspension, is beneficial to reducing energy consumption and lightweighting the heavy truck chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 A three-dimensional schematic diagram of the front enclosure (closed state);

[0033] Figure 3 A three-dimensional schematic diagram of the front enclosure (open state);

[0034] Figure 4 is a three-dimensional schematic diagram of a side guard plate assembly;

[0035] Figure 5 is a three-dimensional schematic diagram of the lower guard plate assembly;

[0036] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0037] Figure 7 is one of the three-dimensional schematic diagrams of the upper guard plate assembly;

[0038] Figure 8 This is the second three-dimensional schematic diagram of the upper guard plate assembly;

[0039] Figure 9 is a three-dimensional schematic diagram of the stepping device (open state);

[0040] Figure 10 is a three-dimensional schematic diagram of the stepping device (closed state);

[0041] Figure 11 A three-dimensional schematic diagram of the side;

[0042] Figure 12 This is a schematic diagram of the installation of the first tread and the second tread;

[0043] Figure 13 This is the installation diagram of the energy assembly;

[0044] Figure 14 This is a schematic diagram of the installation of the hydrogen tank (stereoscopic view);

[0045] Figure 15 for Figure 14 A partial enlarged view of point B in the middle;

[0046] Figure 16 This is a schematic diagram of the installation of the hydrogen tank (side view);

[0047] Figure 17 This is a schematic diagram of the installation of the hydrogen tank (rear view);

[0048] Figure 18 It is one of the three-dimensional schematic diagrams of the chassis assembly;

[0049] Figure 19 This is the second three-dimensional schematic diagram of the chassis assembly;

[0050] Figure 20 is a three-dimensional schematic diagram of the bearing seat;

[0051] Figure 21 This is an exploded schematic diagram of the bearing seat;

[0052] Figure 22 Schematic diagram of the structure of the middle connector;

[0053] Figure 23 is a three-dimensional schematic diagram of the suspension assembly;

[0054] Figure 24This is one of the three-dimensional schematic diagrams of the front airbag bearing assembly;

[0055] Figure 25 This is an exploded schematic diagram of the front airbag bearing assembly;

[0056] Figure 26 This is the second three-dimensional schematic diagram of the front airbag bearing assembly.

[0057] Description of reference numerals:

[0058] Cockpit assembly 100, front panel frame 110, side bracket 111, lower bracket 112, upper bracket 113, first snap ring 114, support rod 115, second snap ring 116, side guard plate assembly 120, side guard plate 121, reinforcement plate 1211, first hinge 122, first buckle 123, lower guard plate assembly 130, lower guard plate 131, first anti-collision strip 1311, second anti-collision strip 1312, second hinge 132, second buckle 133, upper guard plate assembly 140, upper guard plate 141, anti-collision block 1411, gas spring 142, cockpit door 150;

[0059] Stepping device 200, side panel 210, receiving opening 211, first connecting seat 212, second connecting seat 213, first limiting plate 214, second limiting plate 215, rear limiting plate 216, first tread 220, second tread 230, driving mechanism 240, third connecting seat 241, fourth connecting seat 242, driving cylinder 243, first connecting rod 244, second connecting rod 245;

[0060] Chassis assembly 300, first loading plate 311, second loading plate 312, front connector 313, first connector plate 3131, rear connector 314, second connector plate 3141, middle connector 315, third connector plate 3151, base 320, support truss 321, top truss 322, lower mounting base 330, bottom truss 331, side truss 332, upper truss 333, side partition 334, first installation space 340, second installation space 350;

[0061] Energy assembly 400, upper mounting base 410, outer frame 411, longitudinal spacer 412, vertical beam 4121, horizontal beam 4122, vertical spacer 413, longitudinal beam 4131, fastener 420, lower positioning base 421, locking base 422, holding ring 423, connecting rod 424, nut 425, hydrogen tank 430, protective cover 440, protective door 450, third installation space 460;

[0062] First airbag assembly 510, first airbag 511, first bracket 512, first base plate 513, first connecting rod 514, second airbag assembly 520, second airbag 521, second bracket 522, second base plate 523, second connecting rod 524, second connecting assembly 530, third connecting rod 531, fourth connecting rod 532, support rod 533, bearing seat 534, rear airbag bearing assembly 540, shock absorber assembly 550, first shock absorber 551, second shock absorber 552;

[0063] Wheel assembly 600. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to 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.

[0065] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are all based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0066] refer to Figure 1 As shown, the present invention discloses a hydrogen fuel heavy truck, including a cab assembly 100, a chassis assembly 300, an energy assembly 400, a suspension assembly and a wheel assembly 600.

[0067] Cooperate Figures 1 to 8 As shown, the cockpit assembly 100 is mounted on the chassis assembly 300. The cockpit assembly 100 includes a front wall frame 110 and a front wall shield. Side brackets 111 are respectively provided on the left and right sides of the front end of the front wall frame 110. A lower bracket 112 is provided on the lower side of the front end of the front wall frame 110. An upper bracket 113 is provided on the upper side of the front end of the front wall frame 110. The front wall shield includes a side guard plate assembly 120, a lower guard plate assembly 130, and an upper guard plate assembly 140. The side guard plate assembly 120 is provided on the side bracket 111 and can be opened outward relative to the front wall frame 110. The lower guard plate assembly 130 is provided on the lower bracket 112 and can be opened downward relative to the front wall frame 110. The upper guard plate assembly 140 is provided on the upper bracket 113 and can be opened upward relative to the front wall frame 110.

[0068] The side guard assembly 120 includes a side guard 121, a first hinge 122, and a first buckle 123. The side guard 121 is detachably connected to the side bracket 111 via the first hinge 122. A reinforcement plate 1211 is fixed to the inner edge of the side guard 121 and arranged along the circumference of the side guard 121. A first buckle 114 is provided on one side of the side bracket 111 of the front panel frame 110. Rotation of the side guard 121 allows the first buckle 123 to engage with the first buckle 114. In the present invention, the first buckle 123 and the first buckle 114 can adopt existing snap-fit ​​structures, as long as they can achieve closed and open engagement of the side guard 121. Therefore, their specific structure is not described in detail.

[0069] The lower guard plate assembly 130 includes a lower guard plate 131, a second hinge 132, and a second buckle 133. The lower guard plate 131 is detachably connected to the lower bracket 112 via the second hinge 132. A first anti-collision strip 1311 and a second anti-collision strip 1312 are provided on the inner side of the lower guard plate 131. The first anti-collision strip 1311 is arranged longitudinally along the lower guard plate 131, and the second anti-collision strip 1312 is arranged transversely along the lower guard plate 131. Both the first anti-collision strip 1311 and the second anti-collision strip 1312 are made of shock-absorbing material. A set of support rods 115 are provided on the lower bracket 112. The support rods 115 are provided with a second snap ring 116 and a first snap ring 114. When the lower guard plate 131 is rotated, the second buckle 133 can be engaged with the second snap ring 116. In the present invention, the second buckle 133 and the second snap ring 116 and the first buckle 123 and the first snap ring 114 have the same structure, and both adopt the existing snap connection structure, so their specific structures are not described in detail.

[0070] The upper guard plate assembly 140 includes an upper guard plate 141 and a gas spring 142. The upper guard plate 141 is hinged to the upper bracket 113. The bottom end of the gas spring 142 is set on the front frame 110, and the upper end is connected to the upper guard plate 141. In this embodiment, a plurality of anti-collision blocks 1411 are arranged in an array on the inner side of the upper guard plate 141. The anti-collision blocks 1411 are made of shock-absorbing material.

[0071] When the lower guard plate 131, upper guard plate 141, and lower guard plate 131 are retracted relative to the cowl frame 110, the edge of the lower guard plate 131 covers the edge of the side guard plate 121, and the edge of the upper guard plate 141 covers the edge of the lower guard plate 131. When parts need to be replaced or maintenance is required, the gas spring 142 first opens the upper guard plate 141, then opens the lower guard plate 131 downward, and finally opens the side guard plates 121 to the sides.

[0072] The side guard plate assembly 120, the lower guard plate assembly 130 and the upper guard plate assembly 140 are all independently installed structures. During maintenance, only the damaged parts need to be replaced, and the maintenance cost is low. At the same time, the side guard plate assembly 120, the lower guard plate assembly 130 and the upper guard plate assembly 140 are all opened relative to the front frame 110. There is no need to remove the entire front guard for inspection and maintenance, which greatly reduces the difficulty of inspecting and maintaining the front guard of the truck and is very convenient to operate.

[0073] Cooperate Figure 1 、 Figures 9 to 12 As shown, the cockpit assembly 100 further includes a cockpit door 150 and a step device 200. The cockpit door 150 is disposed on the side of the front panel frame 110. The step device 200 is disposed below the cockpit door 150 and includes a side panel 210, a first step plate 220, a second step plate 230, and a drive mechanism 240. The side panel 210 is fixedly mounted on the front panel frame 110 and has a receiving opening 211 formed therein. The first step plate 220 and the second step plate 230 are disposed in the receiving opening 211 from bottom to top, and the rear ends of the first step plate 220 and the second step plate 230 are rotatable relative to the side panel 210. The side panel 210 is provided with a first connecting seat 212 and a second connecting seat 213 from bottom to top. In this embodiment, there are two first connecting seats 212 and second connecting seats 213. The rear end of the first stepping plate 220 is hinged to the first connecting seat 212, and the rear end of the second stepping plate 230 is hinged to the second connecting seat 213.

[0074] A first limiting plate 214, a second limiting plate 215 and a rear limiting plate 216 are provided in the accommodating opening 211 from bottom to top. The first limiting plate 214 is used to limit the downward flipping angle of the first tread 220 and to support the open first tread 220. The second limiting plate 215 is used to limit the downward flipping angle of the second tread 230 and to support the open second tread 230. The rear limiting plate 216 is used to limit the backward flipping angle of the second tread 230 and to position the tread so that the tread can be folded into place.

[0075] The driving mechanism 240 includes a driving member and a linkage member. The driving member is disposed between the front enclosure frame 110 and the first tread 220 . The second tread 230 moves synchronously with the first tread 220 through the linkage member to open / close the accommodating opening 211 .

[0076] The driving component includes a third connecting seat 241, a fourth connecting seat 242 and a driving cylinder 243. The third connecting seat 241 is arranged on the side wall 210, the fourth connecting seat 242 is arranged on the first step plate 220, the bottom of the driving cylinder 243 is hinged to the third connecting seat 241, and the piston rod of the driving cylinder 243 is hinged to the fourth connecting seat 242.

[0077] The linkage includes a first connecting rod 244 and a second connecting rod 245. The lower end of the first connecting rod 244 is fixed to the side of the first tread 220, and the upper end is hinged to the front side of the second tread 230. The lower end of the second connecting rod 245 is hinged to the middle side of the second tread 230, and the upper end is connected to the side panel 210. After the driving cylinder 243 is actuated, the first tread 220 flips, and the first tread 220 drives the second tread 230 to flip via the first connecting rod 244 and the second connecting rod 245, thereby opening / closing the receiving opening 211.

[0078] The first tread 220 and the second tread 230 can be rotatably arranged in the accommodating opening 211 and can be flipped by a driving mechanism. When the first tread 220 and the second tread 230 are open, the driver can get on and off the vehicle. When the first tread 220 and the second tread 230 are closed, they can be folded into the accommodating opening 211, which not only takes up less space on the inner side of the tread, but also reduces the wind resistance of the folded tread.

[0079] Cooperate Figure 1 、 Figures 18 to 22 As shown, the chassis assembly 300 includes a bearing seat, a base 320 and a lower mounting seat 330. The bearing seat includes a group of bearing plates and a plurality of first connecting components. The first connecting components are used to securely connect the two bearing plates. The base 320 and the lower mounting seat 330 are both truss structures. The base 320 is fixed to the top of the bearing plate. The lower mounting seat 330 is located below the base 320 and is securely connected to the base 320 and the bearing plate. The battery pack and control equipment are installed in the lower mounting seat 330. The bearing seat is formed by a group of bearing plates secured together by the first connecting components. The base 320 and the lower mounting seat 330 are both truss structures. The chassis assembly 300 of this structure replaces the existing large beam square steel structure of the heavy truck chassis, which can make the heavy truck chassis lighter and consume less energy, in line with the development trend of lightweight chassis.

[0080] The first connecting assembly includes a front connector 313, a rear connector 314, and several intermediate connectors 315. The front connector 313 and rear connector 314 are respectively disposed at the front and rear ends of the load-bearing plate. Intermediate connectors 315 are disposed in the center of the load-bearing plate and near the rear connector 314. The center of the load-bearing plate bears the primary weight of the base 320, while the area near the rear connector 314 bears the weight of the cargo compartment. The placement of intermediate connectors 315 in these two locations increases the load-bearing capacity of the load-bearing base. In this embodiment, the front connector 313 and rear connector 314 are both frame-shaped, while the intermediate connector 315 is an I-shaped structure.

[0081] The supporting plate has a U-shaped structure with its U-shaped opening facing inward. A first connecting plate 3131 is provided at both ends of the front connecting member 313, a second connecting plate 3141 is provided at both ends of the rear connecting member 314, and a third connecting plate 3151 is provided at both ends of the middle connecting member 315. The first connecting plate 3131, the second connecting plate 3141 and the third connecting plate 3151 are respectively fixed in the U-shaped opening of the supporting plate, so as to increase the connection area between the front connecting member 313 / the rear connecting member 314 / the middle connecting member 315 and the supporting plate, thereby ensuring the reliability of the connection.

[0082] The lower mounting base 330 includes a first mounting space 340 and several second mounting spaces 350. The first mounting space 340 is located in the center of the lower mounting base 330, and the load-bearing plate is inserted and fixed in the first mounting space 340. The second mounting spaces 350 are located on both sides of the first mounting space 340 and are used to install battery packs and control equipment. The base 320 includes a support truss 321 and a top truss 322. The support truss 321 is fixedly connected to the load-bearing plate, and the top truss 322 is installed on top of the support truss 321.

[0083] The lower mounting seat 330 includes a bottom truss 331, side trusses 332, an upper truss 333 and a side partition 334. Side trusses 332 are fixed on both sides above the bottom truss 331. The upper truss 333 is fixed above the side truss 332 and is fixedly connected to the support truss 321. Two side partitions 334 are fixed between the two side trusses 332. The space between the two side partitions 334 and the bottom truss 331 and the upper truss 333 is the first mounting space 340. The load-bearing plate is fixedly connected to the side partitions 334. The space between the side partitions 334, the adjacent side trusses 332 and the bottom truss 331 and the upper truss 333 is the second mounting space 350.

[0084] Cooperate Figure 1 、 Figures 13 to 17 As shown, the energy assembly 400 includes an upper mounting base 410, a locking member 420, a hydrogen tank 430, and a protective cover 440. The upper mounting base 410 is fixed to the base 320 and located on the side of the cockpit assembly 100. The upper mounting base 410 includes a plurality of mutually separated third mounting spaces 460, each of which is provided with a set of locking members 420. A hydrogen tank 430 is installed in each third mounting space 460, and each hydrogen tank 430 is fixed to the upper mounting base 410 via the locking members 420. In this embodiment, the front and rear ends of each hydrogen tank 430 are secured by the locking members 420 to ensure the stability of the hydrogen tank 430 after installation. The protective cover 440 surrounds the outer side of the upper mounting base 410. One side of the protective cover 440 has an opening with an openable and closable protective door 450 installed on it, which facilitates the loading and unloading of the hydrogen tank 430.

[0085] The upper mounting seat 410 is arranged on the side of the cockpit assembly 100, and the battery pack is arranged in the lower mounting seat 330. Multiple hydrogen tanks 430 can be fixedly installed in the upper mounting seat 410 to meet the use requirements of heavy-duty trucks with long cruising range. Through the reasonable layout of the upper mounting seat 410, more hydrogen tanks 430 can be arranged while having little impact on the load space of the heavy-duty truck, so that the heavy-duty truck has a longer cruising range.

[0086] The upper mounting seat 410 includes an outer frame 411, a longitudinal partition frame 412 and a vertical partition frame 413. A plurality of longitudinal partition frames 412 are provided along the longitudinal direction of the outer frame 411, and a plurality of vertical partition frames 413 are provided along the vertical direction. The longitudinal partition frames 412 and the vertical partition frames 413 are cross-arranged with each other to form each third mounting space 460.

[0087] The longitudinal spacers 412 include several vertical beams 4121 and several cross beams 4122. The vertical beams 4121 are arranged at equal intervals along the transverse direction of the outer frame 411, and the cross beams 4122 are arranged at equal intervals along the length of the vertical beams 4121. The vertical spacers 413 include several longitudinal beams 4131, which are arranged at equal intervals along the transverse direction of the outer frame 411. In this embodiment, there are two longitudinal spacers 412, each including four vertical beams 4121 and five cross beams 4122; there are three vertical spacers 413, each including four longitudinal beams 4131. This structure of the upper mounting base 410 can accommodate at least twelve hydrogen tanks 430. Of course, the structure of the upper mounting base 410 is not limited to that of this embodiment. It can also be designed to include more third mounting spaces 460, allowing the vehicle frame to accommodate more hydrogen tanks 430 to meet the long-range requirements of heavy-duty trucks.

[0088] The locking member 420 includes a lower positioning seat 421, a locking seat 422, a ring 423, and a connecting rod 424. The lower positioning seat 421 is fixed to the longitudinal spacer 412, and its top shape is adapted to the outer shape of the hydrogen tank 430. The lower positioning seat 421 is provided with a locking seat 422 at each end. The ring 423 surrounds the exterior of the hydrogen tank 430. The ring 423 is provided with a connecting rod 424 at each end. The connecting rod 424 is detachably connected to the locking seat 422 to secure the hydrogen tank 430 to the lower positioning seat 421. In this embodiment, the connecting rod 424 is hinged to the end of the ring 423 and is processed with an external thread. After the connecting rod 424 is inserted into the locking seat 422, it is connected and fixed by a nut 425 screwed thereto.

[0089] Cooperate Figure 1 、 Figures 20 to 26As shown, the suspension assembly is installed on the supporting seat, and the wheel assembly 600 is installed on the suspension assembly. The suspension assembly includes a front airbag supporting assembly and a rear airbag supporting assembly 540 respectively installed at the front and rear ends of the supporting seat. The front airbag supporting assembly includes a first airbag component 510, a second airbag component 520 and a second connecting component 530. The rear airbag supporting assembly 540 can adopt the existing structure and will not be repeated in the present invention.

[0090] The supporting seat includes a first supporting plate 311 and a second supporting plate 312 arranged parallel to each other. The first airbag assembly 510 includes a first airbag 511, a first bracket 512 and a first base plate 513. The top of the first airbag 511 is connected to the bottom of the first supporting plate 311, the first bracket 512 is fixed to the bottom of the first supporting plate 311, and the first base plate 513 is hinged to the first bracket 512. The first airbag assembly 510 also includes a first connecting rod 514. The two ends of the first connecting rod 514 are respectively hinged to the first base plate 513 and the first bracket 512. When the first airbag 511 is extended or retracted, the first base plate 513 and the first connecting rod 514 rotate relative to the first bracket 512. The second airbag assembly 520 includes a second airbag 521, a second bracket 522 and a second base plate 523. The top of the second airbag 521 is connected to the bottom of the second supporting plate 312, the second bracket 522 is fixed to the bottom of the second supporting plate 312, and the second base plate 523 is hinged to the second bracket 522. The second airbag assembly 520 also includes a second connecting rod 524. The two ends of the second connecting rod 524 are respectively hinged to the second base plate 523 and the second bracket 522. When the second airbag 521 is extended or retracted, the second base plate 523 and the second connecting rod 524 rotate relative to the second bracket 522.

[0091] The second connecting assembly 530 is disposed between the first supporting plate 311 and the second supporting plate 312 and is used to synchronously raise and lower the first base plate 513 and the second base plate 523. The second connecting assembly 530 includes a third connecting rod 531, a fourth connecting rod 532, a support rod 533, and a bearing seat 534. The third connecting rod 531 has its ends connected to the first base plate 513 and the second base plate 523, respectively. The fourth connecting rod 532 has one end connected to the second base plate 523 and the other end connected to the first supporting plate 311. The support rod 533 is located between the two ends of the third connecting rod 531. The upper end of the support rod 533 is fixed to the supporting seat, and the lower end is fixed with a bearing seat 534. The third connecting rod 531 is rotatably mounted in the bearing seat 534 via a bearing.

[0092] The suspension assembly also includes a shock absorber assembly 550, which includes a first shock absorber 551 and a second shock absorber 552. The lower end of the first shock absorber 551 is arranged on the first base plate 513, and the upper end is hinged to the first supporting plate 311. The lower end of the second shock absorber 552 is arranged on the second base plate 523, and the upper end is hinged to the second supporting plate 312.

[0093] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A hydrogen fuel heavy truck, characterized by: The vehicle comprises a cockpit assembly, a chassis assembly, an energy assembly, a suspension assembly and a wheel assembly; the cockpit assembly is mounted on the chassis assembly; the chassis assembly comprises a bearing seat, a base and a lower mounting seat, the bearing seat comprises a group of bearing plates and a plurality of first connecting components, the first connecting component is used to fix the two bearing plates, the base and the lower mounting seat are both truss structures, the base is fixed on the top of the bearing plate, the lower mounting seat is located below the base and is fixed to the base and the bearing plate, and a battery pack and a control device are installed in the lower mounting seat; the energy assembly The source assembly includes an upper mounting seat, a locking piece and a hydrogen tank. The upper mounting seat is fixed on the base and is located on the side of the cockpit assembly. The upper mounting seat includes a plurality of third mounting spaces separated from each other. Each of the third mounting spaces is provided with a group of the locking pieces. The third mounting spaces are each equipped with the hydrogen tank, and each hydrogen tank is fixed to the upper mounting seat by the locking piece. The suspension assembly is mounted on the bearing seat. The wheel assembly is mounted on the suspension assembly. The cockpit assembly includes a front wall frame and a front wall guard. The front wall frame Side brackets are respectively provided on the left and right sides of the front end of the frame, a lower bracket is provided on the lower side of the front end of the front enclosure frame, and an upper bracket is provided on the upper side of the front end of the front enclosure frame; the front enclosure guard surface includes a side guard plate assembly, a lower guard plate assembly and an upper guard plate assembly, the side guard plate assembly is provided on the side bracket and can be opened outward relative to the front enclosure frame, the lower guard plate assembly is provided on the lower bracket and can be opened downward relative to the front enclosure frame, the upper guard plate assembly is provided on the upper bracket and can be opened upward relative to the front enclosure frame; the bearing plate is a U-shaped structure; the first connecting group The parts include a front connecting part, a rear connecting part and several middle connecting parts, the front connecting part and the rear connecting part are respectively arranged at the front and rear ends of the supporting plate, and the supporting plate is provided with the middle connecting part at the middle position and near the rear connecting part; the lower mounting seat includes a first mounting space and several second mounting spaces, the first mounting space is located in the middle part of the lower mounting seat, the supporting plate is passed through and fixed in the first mounting space, the second mounting space is located on both sides of the first mounting space, and the second mounting space is used to install the battery pack and the control device.

2. A hydrogen fuel heavy truck according to claim 1, characterized in that: The side guard plate assembly includes a side guard plate, a first hinge and a first clip, and the side guard plate is detachably connected to the side bracket through the first hinge, and the front panel frame is provided with a first clip on one side of the side bracket, and the first clip can be clipped with the first clip after the side guard plate is rotated; the lower guard plate assembly includes a lower guard plate, a second hinge and a second clip, and the lower guard plate is detachably connected to the lower bracket through the second hinge, and the lower bracket is provided with a group of support rods, and the support rods are provided with a second clip and the first clip, and the lower guard plate can be clipped with the second clip after the lower guard plate is rotated; the upper guard plate assembly includes an upper guard plate and a gas spring, and the upper guard plate is hinged in the upper bracket, and the bottom end of the gas spring is provided on the front panel frame and the upper end is connected to the upper guard plate.

3. The hydrogen fuel heavy truck according to claim 1, characterized in that: The cockpit assembly also includes a cockpit door and a step device; the cockpit door is arranged on the side of the front panel frame; the step device is arranged below the cockpit door, and includes a side panel, a first step board, a second step board and a driving mechanism, the side panel is fixedly arranged on the front panel frame, and a receiving opening is provided on the side panel, the first step board and the second step board are arranged in the receiving opening from bottom to top, and the rear ends of the first step board and the second step board can rotate relative to the side panel, the driving mechanism includes a driving member and a linkage member, the driving member is arranged between the front panel frame and the first step board, and the second step board moves synchronously with the first step board through the linkage member to open / close the receiving opening.

4. The hydrogen fuel heavy truck according to claim 1, characterized in that: The base includes a supporting truss and a top truss, the supporting truss is fixedly connected to the bearing plate, and the top truss is provided on the top of the supporting truss; the lower mounting seat includes a bottom truss, a side truss, an upper truss and a side partition, the side trusses are respectively fixed on both sides above the bottom truss, the upper truss is fixed above the side truss and fixedly connected to the supporting truss, two side partitions are fixed between the two side trusses, and the space between the two side partitions and the bottom truss and the upper truss is the first installation space, the bearing plate is fixedly connected to the side partition, and the space between the side partition, adjacent side trusses and the bottom truss and the upper truss is the second installation space.

5. A hydrogen fuel heavy truck according to claim 4, characterized in that: The upper mounting seat includes an outer frame, a longitudinal partition frame and a vertical partition frame. A plurality of longitudinal partition frames are provided along the longitudinal direction of the outer frame, and a plurality of vertical partition frames are provided along the vertical direction. The longitudinal partition frames and vertical partition frames are cross-arranged to form each third mounting space; the locking piece includes a lower positioning seat, a locking seat, an embracing ring and a connecting rod. The lower positioning seat is fixed on the longitudinal partition frame, and the top shape thereof is adapted to the outer shape of the hydrogen tank. The locking seats are respectively provided at both ends of the lower positioning seat, and the embracing ring is connected to the outside of the hydrogen tank. The connecting rods are respectively provided at both ends of the embracing ring, and the hydrogen tank is fixed in the lower positioning seat through the detachable connection between the connecting rod and the locking seat.

6. A hydrogen fuel heavy truck according to claim 5, characterized in that: The longitudinal partition frame includes several vertical beams and several cross beams. The vertical beams are arranged at equal intervals along the transverse direction of the outer frame, and the cross beams are arranged at equal intervals along the length direction of the vertical beams. The vertical partition frame includes several longitudinal beams. The longitudinal beams are arranged at equal intervals along the transverse direction of the outer frame; the connecting rod is hinged to the end of the holding ring, and the connecting rod is processed with an external thread. After the connecting rod is inserted into the locking seat, it is connected and fixed by a nut screwed thereto.

7. The hydrogen fuel heavy truck according to claim 1, characterized in that: The suspension assembly includes a front airbag bearing assembly and a rear airbag bearing assembly respectively installed at the front and rear ends of the bearing seat; the front airbag bearing assembly includes a first airbag assembly, a second airbag assembly and a second connecting assembly; the bearing seat includes a first bearing plate and a second bearing plate arranged parallel to each other, the first airbag assembly includes a first airbag, a first bracket and a first bottom plate, the top of the first airbag is connected to the bottom of the first bearing plate, the first bracket is fixedly arranged at the bottom of the first bearing plate, the first bottom plate is hinged to the first bracket, the second airbag assembly includes a second airbag, a second bracket and a second bottom plate, the top of the second airbag is connected to the bottom of the second bearing plate, the second bracket is fixedly arranged at the bottom of the second bearing plate, the second bottom plate is hinged to the second bracket, and the second connecting assembly is arranged between the first bearing plate and the second bearing plate, for making the first bottom plate and the second bottom plate rise and fall synchronously.

8. The hydrogen fuel heavy truck according to claim 7, characterized in that: The suspension assembly also includes a shock absorber assembly, which includes a first shock absorber and a second shock absorber, the lower end of the first shock absorber is arranged on the first base plate, and the upper end is hinged to the first bearing plate, the lower end of the second shock absorber is arranged on the second base plate, and the upper end is hinged to the second bearing plate; the first airbag assembly also includes a first connecting rod, the two ends of the first connecting rod are respectively hinged to the first base plate and the first bracket, the second airbag assembly also includes a second connecting rod, and the two ends of the second connecting rod are respectively hinged to the second base plate and the second bracket; the second connecting assembly includes a third connecting rod, a fourth connecting rod, a support rod and a bearing seat, the two ends of the third connecting rod are respectively connected to the first base plate and the second base plate, one end of the fourth connecting rod is connected to the second base plate, and the other end is connected to the first bearing plate, the support rod is located between the two ends of the third connecting rod, the upper end of the support rod is fixed on the bearing seat, and the lower end is fixed with the bearing seat, and the third connecting rod is rotatably passed through the bearing seat through a bearing.

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