Vehicle

Abstract

The utility model discloses a vehicle, vehicle includes: frame, frame extends in front -back direction, engine, engine is located the top of frame and is connected with frame, post -treatment system device, post -treatment system device is located the below of frame and is connected with frame, set post -treatment system device in the size of h1 in up -down direction, set post -treatment system device in the size of h2 in front -back direction, h1 and h2 satisfy relation formula: h1 < h2, set post -treatment system device in the distance of H with ground in up -down direction, H satisfy relation formula: 460mm <= H <= 500mm. Therefore, through setting post -treatment system device in the size in front -back direction is greater than its in up -down direction, to increase post -treatment system device in the distance with ground in up -down direction between 460mm to 500mm, thereby can increase the ground clearance of post -treatment system device, can solve the problem that post -treatment system device and ground take place the crash when vehicle travels on the ground of worse road condition.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle. Background Technology

[0002] Engineering tractors are mainly used to pull pipe piles on construction site roads. The road conditions on construction sites are poor, and the vehicle body is subjected to more road surface excitation, resulting in greater vibration transmitted to the vehicle body.

[0003] In the existing technology, the ground clearance of the vertical exhaust purification unit matched with the engine is too small. When the vehicle is driving on a poor road, the vertical exhaust purification unit is prone to collision with the ground, which can easily damage the unit. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a vehicle that can increase the ground clearance of the after-treatment system, thereby reducing collisions.

[0005] A vehicle according to an embodiment of the present invention includes: a frame extending in a longitudinal direction; an engine located above and connected to the frame; and an aftertreatment system device located below and connected to the frame. The aftertreatment system device is adapted to purify and discharge exhaust gas generated by the engine. The vertical dimension of the aftertreatment system device is defined as h1, and the longitudinal dimension of the aftertreatment system device is defined as h2. h1 and h2 satisfy the relationship: h1 < h2. The vertical distance between the aftertreatment system device and the ground is defined as H, and H satisfies the relationship: 460mm ≤ H ≤ 500mm.

[0006] Therefore, by setting the size of the aftertreatment system device in the front-to-back direction to be larger than its size in the vertical direction, the distance between the aftertreatment system device and the ground in the vertical direction is increased to between 460mm and 500mm. This increases the ground clearance of the aftertreatment system device and solves the problem of collision between the aftertreatment system device and the ground when the vehicle is driving on a road with poor conditions.

[0007] According to some embodiments of the present invention, the aftertreatment system device includes a housing, a front exhaust pipe, and an exhaust tailpipe. Both the front exhaust pipe and the exhaust tailpipe are connected to the housing. The front exhaust pipe is located on the rear side of the housing and is positioned near the upper end of the housing. The exhaust tailpipe is located on the front side of the housing and is positioned near the lower end of the housing. The inlet of the front exhaust pipe is connected to the exhaust manifold of the engine, and the outlet of the exhaust tailpipe is connected to the external environment. The exhaust tailpipe protrudes at least partially from the lower side of the housing, and the lower end of the exhaust tailpipe is H away from the ground in the vertical direction.

[0008] According to some embodiments of the present invention, the vehicle further includes a battery component connected to the vehicle frame. The battery component is located in front of the aftertreatment system device and spaced apart from the housing. The distance between the aftertreatment system device and the battery component in the front-rear direction is set as L1, and L1 satisfies the relationship: 215mm≤L1≤235mm.

[0009] According to some embodiments of the present invention, the vehicle further includes an air reservoir, which is located below the battery and connected to the vehicle frame. The exhaust tailpipe is located below the air reservoir and spaced apart from it. The distance between the exhaust tailpipe and the ground in the vertical direction gradually decreases in the direction from back to front. The distance between the aftertreatment system device and the air reservoir in the front-rear direction is set to L2, and L2 satisfies the relationship: L2≥200mm.

[0010] According to some embodiments of the present invention, the upper side of the exhaust tailpipe is at least partially open toward the air storage tank, and the distance between the upper edge of the exhaust tailpipe and the ground in the vertical direction gradually decreases in the direction from back to front.

[0011] According to some embodiments of the present invention, the vehicle further includes a wheel cover, which is located behind the housing and spaced apart from the housing. The distance between the housing and the wheel cover in the front-rear direction is set as L3, and L3 satisfies the relationship: 25mm≤L3≤35mm.

[0012] According to some embodiments of the present invention, the distance between the front exhaust pipe and the ground in the vertical direction gradually decreases in the direction from rear to front.

[0013] According to some embodiments of the present invention, the vehicle further includes a leaf spring bracket, which is located on the side of the vehicle frame adjacent to the aftertreatment system device in the left-right direction. The leaf spring bracket is provided with a first through hole. The aftertreatment system device includes a mounting bracket, which is provided with a second through hole. The first through hole corresponds to the second through hole and is connected by a first fastener.

[0014] According to some embodiments of the present invention, the frame is provided with a third through hole, the third through hole corresponding to the first through hole and connected by the first fastener.

[0015] According to some embodiments of the present invention, the mounting bracket is provided with a fourth through hole, which is spaced apart from the second through hole; the frame is provided with a fifth through hole, which is spaced apart from the third through hole; and the fourth through hole corresponds to the fifth through hole and is connected by a second fastener.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial schematic diagram of a vehicle according to an embodiment of the present utility model; Figure 2 This is a partial schematic diagram of a vehicle from another perspective according to an embodiment of the present utility model.

[0018] Figure label: 100. Vehicles; 200. Ground; 10. Frame; 11. Fifth perforation; 20. After-treatment system unit; 21. Housing; 22. Front exhaust pipe; 23. Exhaust tailpipe; 24. Mounting bracket; 241. Second perforation; 242. Fourth perforation; 30. Battery components; 40. Air tank; 50. Leaf spring bracket. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0020] The following is for reference. Figures 1-2 A vehicle 100 according to an embodiment of the present utility model is described.

[0021] Combination Figure 1As shown, the vehicle 100 according to this utility model embodiment may mainly include: a frame 10, an engine, and an aftertreatment system device 20. The frame 10 extends in the front-rear direction, the engine is located above the frame 10 and connected to the frame 10 to ensure the stability of the engine in the vehicle 100. The aftertreatment system device 20 is located below the frame 10 and connected to the frame 10. This can make reasonable use of the connection position of the frame 10, which is conducive to optimizing the space layout in the vehicle 100, and facilitates the connection between the aftertreatment system device 20 and the engine, so that the aftertreatment system device 20 is suitable for purifying and discharging the exhaust gas generated by the engine.

[0022] The aftertreatment system first performs preliminary oxidation treatment on the engine exhaust gas through a diesel oxidation catalyst, then enters a diesel particulate filter to capture particulate matter, then performs nitrogen oxide reduction in a selective catalytic reduction system, and finally passes through an ammonia escape catalyst for ammonia purification before being discharged, in order to reduce the pollution of the engine exhaust gas to the environment.

[0023] Furthermore, the dimension of the post-processing system device 20 in the vertical direction is set as h1, and the dimension of the post-processing system device 20 in the front-back direction is set as h2. h1 and h2 satisfy the relationship: h1 < h2.

[0024] Specifically, in this embodiment of the invention, the aftertreatment system device 20 is configured such that its longitudinal dimension is larger than its vertical dimension, thereby changing the existing vertical aftertreatment system device 20 into a horizontal one. This increases the vertical distance between the aftertreatment system device 20 and the ground 200, thus increasing the ground clearance of the aftertreatment system device 20 in this embodiment. This solves the problem of collision between the aftertreatment system device 20 and the ground 200 when the vehicle 100 is traveling on a road with poor conditions. Even when the vehicle 100 is traveling on a road with poor conditions, the aftertreatment system device 20 is prevented from being damaged by a collision due to significant road surface excitation. This improves the operational reliability of the aftertreatment system device 20, which in turn improves the reliability of engine exhaust, thus enhancing the overall operational reliability of the engine.

[0025] Furthermore, the distance between the post-processing system device 20 and the ground 200 in the vertical direction is set to H, and H satisfies the relationship: 460mm≤H≤500mm.

[0026] In some embodiments of this utility model, the distance between the post-processing system device 20 and the ground 200 in the vertical direction is set to H, and H satisfies the relationship: 460mm≤H.

[0027] Specifically, the distance between the after-treatment system device 20 and the ground 200 in the vertical direction cannot be too small. If the distance between the after-treatment system device 20 and the ground 200 in the vertical direction is too small, the ground clearance of the after-treatment system device 20 will still be too small. In this way, the problem of the after-treatment system device 20 colliding with the ground 200 when the vehicle 100 is driving on the ground 200 with poor road conditions cannot be solved.

[0028] To ensure the reliability of the post-processing system device 20, the distance between the post-processing system device 20 and the ground 200 in the vertical direction needs to be no less than a first preset value, wherein the first preset value includes, but is not limited to, 455mm, 460mm and 465mm.

[0029] In some other embodiments of this utility model, the distance between the post-processing system device 20 and the ground 200 in the vertical direction is set to H, and H satisfies the relationship: H≤500mm.

[0030] Specifically, the distance between the after-treatment system device 20 and the ground 200 in the vertical direction should not be too large. If the distance between the after-treatment system device 20 and the ground 200 in the vertical direction is too large, it may cause the after-treatment system device 20 to encroach on the arrangement of other structural components on the frame 10 in the vertical direction, which is not conducive to the rationality of the spatial arrangement of the internal structure of the vehicle 100, provided that the model of the after-treatment system device 20 remains unchanged.

[0031] To ensure a reasonable spatial arrangement of the internal structure of the vehicle 100, the distance between the aftertreatment system device 20 and the ground 200 in the vertical direction needs to be no greater than a second preset value, wherein the second preset value includes, but is not limited to, 495mm, 500mm and 505mm.

[0032] In some other embodiments of this utility model, the distance between the aftertreatment system device 20 and the ground 200 in the vertical direction is set to H, where H satisfies the relationship: 460mm ≤ H ≤ 500mm. This setting not only ensures the reliability of the aftertreatment system device 20 but also ensures the rationality of the spatial arrangement of the internal structure of the vehicle 100. Preferably, the distance between the aftertreatment system device 20 and the ground 200 in the vertical direction is 480mm.

[0033] Therefore, by setting the size of the after-treatment system device 20 in the front-to-back direction to be larger than its size in the vertical direction, the distance between the after-treatment system device 20 and the ground 200 in the vertical direction is increased to between 460mm and 500mm. This increases the ground clearance of the after-treatment system device 20 and solves the problem of collision between the after-treatment system device 20 and the ground 200 when the vehicle 100 is driving on the ground 200 with poor road conditions.

[0034] Combination Figure 1 As shown, the aftertreatment system device 20 includes a housing 21, a front exhaust pipe 22, and an exhaust tailpipe 23. Both the front exhaust pipe 22 and the exhaust tailpipe 23 are connected to the housing 21. The front exhaust pipe 22 is located on the rear side of the housing 21 and is positioned near the upper end of the housing 21. The exhaust tailpipe 23 is located on the front side of the housing 21 and is positioned near the lower end of the housing 21. The inlet of the front exhaust pipe 22 is connected to the exhaust manifold of the engine, and the outlet of the exhaust tailpipe 23 is connected to the external environment. The exhaust tailpipe 23 protrudes at least partially from the lower side of the housing 21, and the bottom of the exhaust tailpipe 23 is H away from the ground 200 in the vertical direction.

[0035] Specifically, the outlet of the front exhaust pipe 22 is connected to the housing 21, and its inlet is connected to the exhaust manifold of the engine. This allows the exhaust gas discharged from the engine to flow into the housing 21 to guide and discharge the exhaust gas, thereby purifying the gas produced after the engine runs and preventing environmental pollution.

[0036] Furthermore, the front exhaust pipe 22 is located on the rear side of the housing 21 and is positioned close to the upper end of the housing 21. This facilitates the connection of the front exhaust pipe 22 to the exhaust manifold on the engine located above the rear side of the housing 21, so as to efficiently transport high-temperature exhaust gas.

[0037] Furthermore, the inlet of the exhaust tailpipe 23 is connected to the housing 21, and its outlet is connected to the external environment, so that the gas purified by the aftertreatment system device 20 can be discharged to the external environment through the exhaust tailpipe 23.

[0038] Furthermore, the exhaust tailpipe 23 is located on the front side of the housing 21 and is positioned close to the lower end of the housing 21 to avoid other structural components in the vehicle 100 located above the exhaust tailpipe 23.

[0039] Furthermore, to avoid the arrangement of other structural components in the vehicle 100, the exhaust tailpipe 23 is at least partially protruding downward from the bottom of the housing 21. In this embodiment of the present invention, the distance between the lower end of the exhaust tailpipe 23 and the ground 200 is 480mm. This ensures that the distance between the aftertreatment system device 20 and the ground 200 is increased, so as to prevent the aftertreatment system device 20 from colliding with the ground 200 when the road conditions of the vehicle 100 are poor.

[0040] Combination Figure 1 As shown, the vehicle 100 also includes a battery unit 30, which is connected to the frame 10. The battery unit 30 is located in front of the aftertreatment system device 20 and is spaced apart from the housing 21. The distance between the aftertreatment system device 20 and the battery unit 30 in the front-rear direction is set as L1, and L1 satisfies the relationship: 215mm≤L1≤235mm.

[0041] Specifically, in this embodiment of the utility model, the vertical after-treatment system device 20 in the prior art is replaced with a horizontal after-treatment system device 20. The horizontal after-treatment system device 20 and the battery unit 30 located in front of it are spaced apart in the front-rear direction to ensure that the horizontal after-treatment system device 20 will not interfere with the structural components in front of it. This ensures that the rationality of the interior space layout of the vehicle can still be guaranteed under the design of the horizontal after-treatment system device 20.

[0042] In some embodiments of this utility model, the distance between the post-processing system device 20 and the battery component 30 in the front-rear direction is set to L1, and L1 satisfies the relationship: 215mm≤L1.

[0043] Specifically, the distance between the after-processing system device 20 and the battery device 30 in the front-rear direction cannot be too small. If the distance between the after-processing system device 20 and the battery device 30 in the front-rear direction is too small, it may cause the after-processing system device 20 to interfere with the battery device 30 in front of it, thus making it impossible to ensure that both the after-processing system device 20 and the battery device 30 in front of it can work.

[0044] To ensure the normal operation of the after-treatment system device 20 and its front structural components, the distance between the after-treatment system device 20 and the battery component 30 in the front-rear direction needs to be no less than a third preset value, wherein the third preset value includes, but is not limited to, 213mm, 215mm and 217mm.

[0045] In some other embodiments of this utility model, the distance between the post-processing system device 20 and the battery component 30 in the front-rear direction is set to L1, and L1 satisfies the relationship: L1≤235mm.

[0046] Specifically, the distance between the after-treatment system device 20 and the battery unit 30 in the front-rear direction should not be too large. If the distance between the after-treatment system device 20 and the battery unit 30 in the front-rear direction is too large, it may encroach on other structural components behind the horizontal after-treatment system device 20, or lead to an increase in the size of the vehicle in the front-rear direction, which is not conducive to the structural integration and space utilization of the vehicle.

[0047] To ensure the structural integration of the vehicle and improve space utilization, the distance between the aftertreatment system device 20 and the battery device 30 in the front-rear direction needs to be no greater than a fourth preset value, wherein the fourth preset value includes, but is not limited to, 233mm, 235mm and 237mm.

[0048] In some embodiments of this utility model, the distance between the aftertreatment system device 20 and the battery component 30 in the front-rear direction is set to L1, and L1 satisfies the relationship: 215mm≤L1≤235mm. This setting can not only ensure the normal operation of the aftertreatment system device 20 and its front structural components, but also ensure the structural integration of the whole vehicle and improve the space utilization rate.

[0049] Combination Figure 1 As shown, the vehicle 100 also includes an air reservoir 40, which is located below the battery assembly 30 and connected to the frame 10. The exhaust tailpipe 23 is located below the air reservoir 40 and is spaced apart from the air reservoir 40. The distance between the exhaust tailpipe 23 and the ground 200 in the vertical direction gradually decreases in the direction from rear to front.

[0050] Specifically, a gas storage cylinder 40 is also provided in front of the horizontal after-treatment system device 20. The gas storage cylinder 40 is below the battery component 30. In this utility model, the exhaust tailpipe 23 in front of the after-treatment system device 20 is located below the gas storage cylinder 40 and is spaced apart from the gas storage cylinder 40 so that the exhaust tailpipe 23 avoids the gas storage cylinder 40. This can reduce the impact of the after-treatment system device 20 on the temperature of the gas storage cylinder 40 when it exhausts, and can ensure the smooth exhaust of the exhaust tailpipe 23.

[0051] Furthermore, in the direction from back to front, the ground clearance of the exhaust tailpipe 23 gradually decreases, so that the exhaust tailpipe 23 can be gradually tilted downward in the direction from the housing 21 to avoid the air storage tank 40 above it.

[0052] According to an embodiment of the present invention, the distance between the post-processing system device 20 and the air storage cylinder 40 in the front-to-back direction is set to L2, and L2 satisfies the relationship: L2≥200mm.

[0053] Specifically, if the distance between the after-treatment system device 20 and the gas storage tank 40 in the front-to-back direction is too small, the temperature of the gas discharged from the after-treatment system device 20 will be high, which will affect the structural reliability of the gas storage tank 40. To ensure the structural reliability of the gas storage tank 40, the distance between the after-treatment system device 20 and the gas storage tank 40 in the front-to-back direction needs to be no less than 200mm.

[0054] Combination Figure 1As shown, the upper side of the exhaust tailpipe 23 is at least partially open to the air reservoir 40. The distance between the upper edge of the exhaust tailpipe 23 and the ground 200 in the vertical direction gradually decreases from back to front. This arrangement can increase the exhaust efficiency of the exhaust tailpipe 23, allowing the exhaust gas in the aftertreatment system device 20 to be discharged quickly after purification. This is beneficial to improving the exhaust efficiency of the aftertreatment system device 20, thereby improving the purification efficiency of the vehicle 100 aftertreatment system. At the same time, it helps to reduce system temperature accumulation and extend the life of the exhaust aftertreatment device.

[0055] Combination Figure 1 As shown, the engine is located behind the housing 21 and spaced apart from it. This helps reduce the heat radiation from the engine exhaust to the aftertreatment system 20 and provides operating space for maintenance personnel, facilitating the disassembly, assembly, and replacement of the aftertreatment system 20. The distance between the housing 21 and the engine in the longitudinal direction is defined as L3, where L3 satisfies the relationship: 25mm ≤ L3 ≤ 35mm. In some embodiments of this utility model, the distance between the housing 21 and the engine in the front-rear direction is set to L3, and L3 satisfies the relationship: 25mm≤L3.

[0056] Specifically, the distance between the housing 21 and the engine in the front-rear direction cannot be too small. If the distance between the housing 21 and the engine in the front-rear direction is too small, the high temperature of the engine exhaust may affect the intake efficiency of the aftertreatment system device 20, and the vibration generated when the engine is working may affect the structural reliability of the aftertreatment system device 20.

[0057] To improve the intake efficiency and structural reliability of the aftertreatment system device 20, the distance between the housing 21 and the engine in the front-rear direction needs to be no less than a fifth preset value, wherein the fifth preset value includes, but is not limited to, 23mm, 25mm and 27mm.

[0058] In some other embodiments of this utility model, the distance between the housing 21 and the engine in the front-rear direction is set to L3, and L3 satisfies the relationship: L3≤35mm.

[0059] Specifically, the distance between the housing 21 and the engine in the front-rear direction should not be too large. If the distance between the housing 21 and the engine in the front-rear direction is too large, it will increase the cost of the aftertreatment device and cause the overall NVH performance of the vehicle to deteriorate.

[0060] To ensure the vehicle's 100NVH performance, the distance between the housing 21 and the engine in the front-rear direction needs to be set to no greater than a sixth preset value, which includes, but is not limited to, 33mm, 35mm and 37mm.

[0061] In some embodiments of this utility model, the distance between the housing 21 and the engine in the front-rear direction is set to L3, and L3 satisfies the relationship: 25mm≤L3≤35mm. This setting not only improves the intake efficiency and structural reliability of the aftertreatment system device 20, but also ensures the vehicle's 100NVH performance.

[0062] Combination Figure 1 As shown, the distance between the front exhaust pipe 22 and the ground 200 in the vertical direction gradually decreases in the direction from rear to front. This arrangement allows the front exhaust pipe 22 to extend from the housing 21 to the rear and upward so that the inlet of the front exhaust pipe 22 can be connected to the exhaust manifold of the engine.

[0063] Combination Figure 2 As shown, the vehicle 100 also includes a leaf spring bracket 50, which is located on the side of the frame 10 adjacent to the aftertreatment system device 20 in the left-right direction. The leaf spring bracket 50 is provided with a first through hole. The aftertreatment system device 20 includes a mounting bracket 24, which is provided with a second through hole 241. The first through hole and the second through hole 241 correspond to each other and are connected by a first fastener.

[0064] Specifically, the leaf spring bracket 50 is used to mount the leaf spring on the frame 10. The leaf spring bracket 50 has a first through hole, which corresponds to the connection hole on the frame 10 so that the leaf spring can be directly connected to the frame 10 by means of screws or the like.

[0065] Furthermore, the aftertreatment system device 20 has a mounting bracket 24 for mounting the aftertreatment system device 20 onto the vehicle frame 10.

[0066] In an embodiment of this utility model, the post-processing system device 20 has a second through hole 241, which corresponds to the first through hole on the leaf spring bracket 50. The first fastener passes through the first through hole and the second through hole 241 in sequence to connect the mounting bracket 24 of the post-processing system device 20 and the leaf spring bracket 50. This allows the mounting bracket 24 of the post-processing system device 20 and the leaf spring bracket 50 to share a common hole.

[0067] Combination Figure 2 As shown, the frame 10 is provided with a third through hole, which corresponds to the first through hole and is connected by a first fastener.

[0068] Specifically, the frame 10 has a third through hole, and the first through hole, the second through hole 241, and the third through hole correspond to each other. The first fastener passes through the second through hole 241, the first through hole, and the third through hole in sequence to connect the mounting bracket 24, the leaf spring bracket 50, and the frame 10. This allows the mounting bracket 24 of the aftertreatment system device 20 and the leaf spring bracket 50 to share a hole. This not only connects the aftertreatment system device 20 to the frame 10, but also shortens the distance between the aftertreatment system device 20 and the air tank 40 of the vehicle 100. This allows the horizontal aftertreatment system device 20 in this embodiment to avoid the installation position of the air tank 40, thereby ensuring the rationality of the internal structure of the vehicle 100 and improving space utilization.

[0069] Combination Figure 2 As shown, the mounting bracket 24 is provided with a fourth through hole 242, which is spaced apart from the second through hole 241. The frame 10 is provided with a fifth through hole 11, which is spaced apart from the third through hole. The fourth through hole 242 and the fifth through hole 11 correspond to each other and are connected by a second fastener.

[0070] Specifically, the mounting bracket 24 is provided with a fourth through hole 242 spaced apart from the second through hole 241, and the frame 10 is provided with a fifth through hole 11 spaced apart from the third through hole. The fourth through hole 242 is adapted to correspond to the fifth through hole 11, and the fourth through hole 242 and the fifth through hole 11 are fastened together by passing through the second fastener in sequence. In this way, the connection position between the mounting bracket 24 and the frame 10 can be increased, which is beneficial to improving the connection strength between the aftertreatment system device 20 and the frame 10. In turn, the reliability of the horizontal aftertreatment system device 20 on the frame 10 after avoiding the air tank 40 can be improved.

[0071] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "circumferential", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle, characterized in that, include: A frame (10) that extends in the longitudinal direction; An engine, which is located above and connected to the frame (10); An aftertreatment system device (20) is located below and connected to the vehicle frame (10). The aftertreatment system device (20) is adapted to purify and discharge the exhaust gas generated by the engine. The size of the aftertreatment system device (20) in the vertical direction is set as h1, and the size of the aftertreatment system device (20) in the front-rear direction is set as h2. h1 and h2 satisfy the relationship: h1 < h2. The distance between the aftertreatment system device (20) and the ground in the vertical direction is set as H. H satisfies the relationship: 460mm ≤ H ≤ 500mm.

2. The vehicle according to claim 1, characterized in that, The aftertreatment system device (20) includes a housing (21), a front exhaust pipe (22), and an exhaust tailpipe (23). The front exhaust pipe (22) and the exhaust tailpipe (23) are both connected to the housing (21). The front exhaust pipe (22) is located on the rear side of the housing (21) and is positioned near the upper end of the housing (21). The exhaust tailpipe (23) is located on the front side of the housing (21) and is positioned near the lower end of the housing (21). The inlet of the front exhaust pipe (22) is connected to the exhaust manifold of the engine. The outlet of the exhaust tailpipe (23) is connected to the external environment. The exhaust tailpipe (23) protrudes at least partially from the lower side of the housing (21). The distance between the lower end of the exhaust tailpipe (23) and the ground in the vertical direction is H.

3. The vehicle according to claim 2, characterized in that, It also includes a battery component (30), which is connected to the frame (10). The battery component (30) is located on the front side of the after-treatment system device (20) and is spaced apart from the housing (21). The distance between the after-treatment system device (20) and the battery component (30) in the front-rear direction is set as L1, and L1 satisfies the relationship: 215mm≤L1≤235mm.

4. The vehicle according to claim 3, characterized in that, It also includes an air reservoir (40), which is located below the battery unit (30) and connected to the vehicle frame (10). The exhaust tailpipe (23) is located below the air reservoir (40) and spaced apart from the air reservoir (40). The distance between the exhaust tailpipe (23) and the ground in the vertical direction gradually decreases in the direction from back to front. The distance between the aftertreatment system device (20) and the air reservoir (40) in the front-rear direction is set to L2, and L2 satisfies the relationship: L2≥200mm.

5. The vehicle according to claim 4, characterized in that, The upper side of the exhaust tailpipe (23) is at least partially open toward the gas storage tank (40), and the upper edge of the exhaust tailpipe (23) gradually decreases in the vertical direction from back to front with respect to the ground.

6. The vehicle according to claim 2, characterized in that, It also includes a wheel cover, which is located behind the box (21) and spaced apart from the box (21). The distance between the box (21) and the wheel cover in the front-rear direction is set to L3, and L3 satisfies the relationship: 25mm≤L3≤35mm.

7. The vehicle according to claim 6, characterized in that, The distance between the front exhaust pipe (22) and the ground in the vertical direction gradually decreases from rear to front.

8. The vehicle according to claim 1, characterized in that, It also includes a leaf spring bracket (50), which is located on the side of the vehicle frame (10) adjacent to the aftertreatment system device (20) in the left-right direction. The leaf spring bracket (50) is provided with a first through hole. The aftertreatment system device (20) includes a mounting bracket (24), which is provided with a second through hole (241). The first through hole and the second through hole (241) correspond to each other and are connected by a first fastener.

9. The vehicle according to claim 8, characterized in that, The frame (10) is provided with a third through hole, which corresponds to the first through hole and is connected by the first fastener.

10. The vehicle according to claim 9, characterized in that, The mounting bracket (24) is provided with a fourth through hole (242), which is spaced apart from the second through hole (241). The frame (10) is provided with a fifth through hole (11), which is spaced apart from the third through hole. The fourth through hole (242) corresponds to the fifth through hole (11) and is connected by a second fastener.

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