Vehicle exhaust system, vehicle chassis assembly and vehicle

Abstract

The utility model discloses a vehicle exhaust system, a vehicle chassis assembly and a vehicle, the vehicle exhaust system is used for the vehicle, the vehicle is provided with a first vehicle cabin and a second vehicle cabin which are sequentially arranged along the length direction of the vehicle, an engine is arranged in the first vehicle cabin, the vehicle exhaust system comprises at least two silencers, the at least two silencers are arranged in the first vehicle cabin, and the second vehicle cabin is arranged in the second vehicle cabin. Every two adjacent silencers are communicated with each other, one silencer is communicated with an exhaust port of the engine, and the other silencer is communicated with at least one exhaust pipe, so that exhaust gas of the engine is exhausted. According to the vehicle exhaust system provided by the embodiment of the utility model, the at least two silencers are arranged in the first vehicle cabin, so that the silencers are prevented from occupying the space in the second vehicle cabin, on one hand, the installation and arrangement of structural parts in the second vehicle cabin are facilitated, and on the other hand, the vehicle exhaust system and the structural parts in the second vehicle cabin can be prevented from interfering with each other; the arrangement difficulty of the vehicle exhaust system is reduced, and meanwhile, the exhaust noise of the vehicle exhaust system can be reduced by arranging at least two silencers.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a vehicle exhaust system, vehicle chassis assembly and vehicle. BACKGROUND

[0002] Traditional fuel vehicles and new energy hybrid vehicles are equipped with engines, the engine provides power through air combustion, and the exhaust gas after combustion is discharged through the vehicle exhaust system.

[0003] However, the existing vehicle exhaust system not only has large working noise and long extension path, but also is prone to interference with other structural components on the vehicle during arrangement, increasing the arrangement difficulty of the vehicle exhaust system. SUMMARY

[0004] The utility model aims at at least solves one of the prior art technical problems. For this purpose, the first purpose of the utility model is to provide a vehicle exhaust system, the vehicle exhaust system extension path is short, can avoid the interference of the vehicle exhaust system with other structural components on the vehicle during arrangement to a certain extent, reduce the arrangement difficulty of the vehicle exhaust system, and also can reduce the noise generated by the vehicle exhaust system during use, improve the use experience, solve the technical problems of large arrangement difficulty and large working noise of the vehicle exhaust system in the prior art.

[0005] The second purpose of the utility model is to provide a vehicle chassis assembly with the above vehicle exhaust system.

[0006] The third purpose of the utility model is to provide a vehicle with the above vehicle chassis assembly.

[0007] The vehicle exhaust system according to the utility model embodiment is used for a vehicle, the vehicle has a first vehicle cabin and a second vehicle cabin arranged in sequence along the length direction, the first vehicle cabin is suitable for installing an engine, and the vehicle exhaust system comprises at least two mufflers, the at least two mufflers are arranged in the first vehicle cabin, two adjacent mufflers are communicated with each other, one of the mufflers is communicated with the exhaust port of the engine, and the other muffler is communicated with at least one exhaust pipe, so as to realize the exhaust of the exhaust gas of the engine.

[0008] According to the vehicle exhaust system, the at least two mufflers of the vehicle exhaust system are arranged in the first vehicle cabin, so that the difficulty of communication between the mufflers and the engine is reduced, the space in the second vehicle cabin is avoided to be occupied by the mufflers to a certain extent, the vehicle exhaust system and the structural member in the second vehicle cabin are avoided to interfere with each other, and then the avoiding structure arranged in the prior art due to the interference between the other structural member in the vehicle chassis and the component in the vehicle exhaust system is avoided, so that the arrangement difficulty of the vehicle exhaust system is reduced; meanwhile, the at least two mufflers are arranged, and the adjacent two mufflers are arranged to be communicated with each other, so that the plurality of mufflers can be communicated with each other, so that the plurality of mufflers can be used to simultaneously reduce the noise of the exhaust of the engine, and the noise reduction and silencing effect of the vehicle exhaust system is improved. That is, the vehicle exhaust system can not only avoid the interference with the structural member in the second vehicle cabin, but also has good noise reduction and silencing effect.

[0009] In some embodiments, the at least two mufflers include a first muffler and a second muffler communicated with each other, the engine, the first muffler and the second muffler are arranged in the first vehicle cabin, the first muffler is communicated with the engine, and the second muffler is communicated with the exhaust pipe.

[0010] In some embodiments, the volume of the first muffler and / or the second muffler ranges from 25L to 35L.

[0011] In some embodiments, an adjusting valve is arranged at the inlet of the second muffler, and the adjusting valve is used to adjust the opening size of the inlet.

[0012] In some embodiments, at least one sound absorbing member is arranged in the first muffler and the second muffler.

[0013] In some embodiments, the vehicle has a first vehicle cabin chassis, the first vehicle cabin chassis defines the first vehicle cabin, the first muffler is fixedly connected with the engine, and the second muffler is fixedly connected with the first vehicle cabin chassis.

[0014] In some embodiments, the vehicle exhaust system further includes at least one lug rod, and the lug rod is connected with the second muffler and the first vehicle cabin chassis respectively.

[0015] In some embodiments, the lug rod includes a plurality of lug rods, and one of the lug rods is connected with the exhaust pipe and the first vehicle cabin chassis respectively.

[0016] In some embodiments, the vehicle exhaust system further includes a communication pipe, and the first muffler and the second muffler are communicated with each other through the communication pipe.

[0017] In some embodiments, the communication pipe is configured to be adjustable in length.

[0018] In some embodiments, at least one reinforcing rib is arranged on the outer peripheral wall of the first muffler and / or the second muffler.

[0019] In some embodiments, the outlet of the exhaust pipe is located in the first vehicle cabin or the second vehicle cabin.

[0020] In some embodiments, the vehicle exhaust system further comprises a heat insulation assembly, and the outer periphery of at least one of the muffler and the exhaust pipe is provided with the heat insulation assembly.

[0021] In some embodiments, the heat insulation assembly comprises a heat insulation material piece and a heat insulation cover, the heat insulation material piece is arranged in the heat insulation cover, and the heat insulation material piece is sleeved on the outer periphery of at least one of the muffler and the exhaust pipe.

[0022] In some embodiments, the vehicle exhaust system further comprises a catalytic converter, the catalytic converter is arranged in the first vehicle cabin and connected between the engine and the muffler.

[0023] In some embodiments, the outer periphery of the catalytic converter is provided with a heat insulation assembly.

[0024] The vehicle chassis assembly according to the embodiments of the present application comprises: a chassis, the chassis comprises a first vehicle cabin chassis and a second vehicle cabin chassis, the first vehicle cabin chassis and the second vehicle cabin chassis are arranged in sequence along the length direction of the vehicle, the first vehicle cabin chassis defines the first vehicle cabin, and the second vehicle cabin chassis defines the second vehicle cabin; an engine, the engine is arranged in the first vehicle cabin; a vehicle exhaust system, the vehicle exhaust system is the aforementioned vehicle exhaust system, the muffler is arranged in the first vehicle cabin, and the muffler communicates with the engine.

[0025] The vehicle chassis assembly according to the embodiments of the present application adopts the aforementioned vehicle exhaust system, which not only reduces the assembly difficulty of the vehicle chassis assembly, but also reduces the noise generated by the vehicle during exhaust, and improves the user experience.

[0026] In some embodiments, the vehicle chassis assembly further comprises a battery pack, and the battery pack is arranged in the second vehicle cabin.

[0027] The vehicle according to the embodiments of the present application comprises the aforementioned vehicle chassis assembly.

[0028] The vehicle according to the embodiments of the present application adopts the aforementioned vehicle chassis assembly, which not only reduces the assembly difficulty of the vehicle, but also reduces the noise generated by the vehicle during exhaust, and improves the user experience.

[0029] Additional aspects and advantages of the present application will become apparent from the following description, which is provided for by way of example of embodiments of the present application, with reference to the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, with reference to the following figures, in which:

[0031] Figure 1 is a bottom view of a vehicle chassis assembly of some embodiments of the present application.

[0032] Figure 2 is a top view of a vehicle chassis assembly of some embodiments of the present application, with some structures omitted.

[0033] Figure 3 is a schematic view of a vehicle exhaust system of some embodiments of the present application, with some structures omitted.

[0034] Figure 4 is an exploded view of a vehicle exhaust system of some embodiments of the present application.

[0035] REFERENCE NUMERALS:

[0036] 1000, vehicle chassis assembly;

[0037] 100, first vehicle cabin;

[0038] 200, second vehicle cabin;

[0039] 300, engine;

[0040] 310, exhaust port;

[0041] 400, vehicle exhaust system;

[0042] 410, muffler;

[0043] 411, first muffler; 413, first housing;

[0044] 412, second muffler; 414, second housing;

[0045] 415, reinforcing rib;

[0046] 420, exhaust pipe;

[0047] 430, regulating valve;

[0048] 440, sound absorbing member;

[0049] 450, lug rod;

[0050] 460, communication pipe;

[0051] 470, heat insulation assembly;

[0052] 471, a piece of thermal insulation material;

[0053] 472, a thermal shield;

[0054] 480, a catalytic converter;

[0055] 600, a battery pack;

[0056] 800, a chassis;

[0057] 500, a first vehicle cabin chassis;

[0058] 700, a second vehicle cabin chassis; 710, a rocker beam. DETAILED DESCRIPTION

[0059] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and cannot be understood as a limitation of the present application.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0061] The vehicle exhaust system 400 of the embodiments of the present application is described below with reference to the accompanying drawings.

[0062] The vehicle exhaust system 400 is used in a vehicle, such as Figure 1 As shown, the vehicle has a first vehicle cabin 100 and a second vehicle cabin 200 arranged in sequence along the length direction thereof, and the first vehicle cabin 100 is adapted to mount an engine 300.

[0063] It should be noted that the length direction mentioned above can be understood as Figure 1The front-rear direction shown in the figure can also be understood as the direction from the front end to the rear end of the vehicle, and by arranging the first cabin 100 and the second cabin 200 in sequence along the length direction of the vehicle, the first cabin 100 and the second cabin 200 can be arranged in sequence along the direction from the front end to the rear end of the vehicle, so as to facilitate the installation of the parts (such as the engine 300, the vehicle exhaust system 400, and the battery pack 600) of the vehicle.

[0064] In some specific examples, the first cabin 100 can be understood as the front cabin of the vehicle, and the second cabin 200 can be understood as the rear cabin of the vehicle.

[0065] Of course, in other embodiments, the first cabin 100 can be understood as the rear cabin of the vehicle, and the second cabin 200 can be understood as the front cabin of the vehicle.

[0066] It should be further noted that by arranging the first cabin 100 to be suitable for installing the engine 300, the engine 300 can be installed in the first cabin 100, that is, the engine 300 is arranged in the front cabin of the vehicle, so that the engine 300 is arranged close to the front end of the vehicle, facilitating the installation and arrangement of the engine 300 and reducing the assembly difficulty of the engine 300.

[0067] In specific examples, the engine 300 serves as a power source and is mainly used to convert kinetic energy into mechanical energy, so as to facilitate the provision of working power to the vehicle and to ensure the working performance of the vehicle to a certain extent.

[0068] It should be emphasized that the engine 300 is installed in the first cabin 100, and not all components of the engine 300 must be accommodated in the first cabin 100. It can be that part of the engine 300 is located in the first cabin 100 and another part of the engine 300 extends out of the first cabin 100, as long as the whole engine 300 is located close to the front end of the vehicle.

[0069] As shown in the figure, the vehicle exhaust system 400 according to the embodiment of the utility model comprises at least two mufflers 410. Figure 1

[0070] Among them, at least two mufflers 410 are arranged in the first cabin 100, and adjacent two mufflers 410 are communicated with each other, one of which is communicated with the exhaust port 310 of the engine 300, and the other is communicated with at least one exhaust pipe 420, so as to realize the exhaust of the exhaust gas of the engine 300. To a certain extent, the working performance of the engine 300 is ensured.

[0071] ​Meanwhile, by arranging the at least two mufflers 410 of the vehicle exhaust system 400 in the first vehicle cabin 100, the first aspect can make full use of the space in the first vehicle cabin 100, improving the space utilization of the first vehicle cabin 100; the second aspect can make the mufflers 410 arranged close to the engine 300, reducing the difficulty of connecting the mufflers 410 and the engine 300; and the third aspect can also avoid the mufflers 410 occupying the space in the second vehicle cabin 200 to some extent, thereby avoiding the interference between the vehicle exhaust system 400 and the structural members (such as the battery pack 600 below) in the second vehicle cabin 200, avoiding the arrangement of the avoiding structure in the conventional technology, reducing the arrangement difficulty of the vehicle exhaust system 400, and also releasing part of the use space in the second vehicle cabin 200, increasing the space volume of the second vehicle cabin 200, which is conducive to the installation and arrangement of the structural members in the second vehicle cabin 200.

[0072] In summary, it can be understood that the vehicle exhaust system 400 of the present application is arranged in the front cabin of the vehicle, so that the vehicle exhaust system 400 is arranged in front.

[0073] Meanwhile, by arranging at least two mufflers 410 and arranging the adjacent two mufflers 410 to be communicated with each other, the exhaust gas of the engine 300 can be sequentially silenced and reduced in noise by the plurality of mufflers 410, improving the silencing and noise reduction effect of the vehicle exhaust system 400, which is conducive to reducing the high, medium and low frequency noise generated when the exhaust gas is discharged, and greatly avoiding the noise pollution caused by the excessive noise generated when the exhaust gas is discharged.

[0074] In specific embodiments, one of the mufflers 410 is communicated with the exhaust port 310 of the engine 300, and the other muffler 410 is communicated with at least one exhaust pipe 420, so that one of the mufflers 410 can receive the exhaust gas discharged by the engine 300 and perform the first noise reduction, and because the adjacent two mufflers 410 are communicated with each other, the exhaust gas can be transmitted to the other muffler 410 for secondary noise reduction treatment after the muffler 410 connected to the engine 300 reduces the noise of the exhaust gas flowing therethrough, to some extent, reducing the high, medium and low frequency noise generated when the exhaust gas is discharged, and finally, the noise-reduced exhaust gas is discharged through the exhaust pipe 420.

[0075] It should be noted that the at least two mufflers 410 refer to two or more, i.e., the number of mufflers 410 can be two, three, four or more, and the specific number can be arranged according to the exhaust capacity of the engine 300 and the space of the vehicle, which is not limited here.

[0076] It should be noted that the above-mentioned another muffler 410 is communicated with at least one exhaust pipe 420, which can be understood as that the another muffler 410 is communicated with one, two or more exhaust pipes 420 to realize the exhaust of the exhaust gas generated by the engine 300 during operation through the exhaust pipe 420.

[0077] In some embodiments, as shown in Figure 1 the another muffler 410 is communicated with one exhaust pipe 420, which can realize the exhaust through the exhaust pipe 420 and simplify the number of exhaust pipes 420 and the difficulty of setting the exhaust pipe 420.

[0078] In other embodiments, the another muffler 410 can also be communicated with two exhaust pipes 420 to facilitate the exhaust through the two exhaust pipes 420 and improve the exhaust speed.

[0079] When the another muffler 410 is communicated with two exhaust pipes 420, the two exhaust pipes 420 can be arranged in the width direction of the vehicle, which can be understood as the left-right direction shown in Figure 1 , that is, the direction from the main driver to the co-driver of the vehicle.

[0080] From the above structure, it can be seen that the vehicle exhaust system 400 of the embodiment of the utility model can realize the front setting of the vehicle exhaust system 400 by setting at least two mufflers 410 in the first vehicle cabin 100, which can avoid the muffler 410 from occupying the space in the second vehicle cabin 200 to a certain extent, release part of the space volume in the second vehicle cabin 200, facilitate the layout and installation of the structural members in the second vehicle cabin 200, and also avoid the interference between the vehicle exhaust system 400 and the structural members in the second vehicle cabin 200, thereby avoiding the setting of the avoiding structure in the prior art and reducing the difficulty of arranging the vehicle exhaust system 400.

[0081] Meanwhile, by setting at least two mufflers 410 and setting the adjacent two mufflers 410 to be communicated with each other, the vehicle exhaust system 400 can perform at least two times of noise reduction treatment on the exhaust gas discharged by the engine 300, improve the noise reduction effect of the vehicle exhaust system 400, and reduce the noise of the exhaust gas in different frequency ranges to a certain extent, thereby preventing the noise pollution caused by the excessive noise of the exhaust gas to a certain extent.

[0082] It can be understood that compared with the prior art, the application sets the vehicle exhaust system 400 to include at least two mutually communicated mufflers 410 and sets at least two mufflers 410 in the first vehicle cabin 100, which can improve the noise reduction effect of the vehicle exhaust system 400 while avoiding the interference between the muffler 410 and the structural members in the second vehicle cabin 200.

[0083] In the description of the utility model, the features of "first", "second" can be explicitly or implicitly include one or more features, for distinguishing the features, there is no order, no difference between heavy and light.

[0084] In some embodiments, in combination Figure 1 and Figure 2 As shown in the figure, at least two mufflers 410 include a first muffler 411 and a second muffler 412 that are in communication with each other, the engine 300, the first muffler 411 and the second muffler 412 are all arranged in the first vehicle cabin 100, the first muffler 411 is in communication with the engine 300, and the second muffler 412 is in communication with the exhaust pipe 420. In this way, during the exhaust process of the engine 300, the first muffler 411 can first receive the exhaust gas discharged by the engine 300 and perform noise reduction processing thereon, and after the first muffler 411 processes the exhaust gas, the decibel of the noise in the exhaust gas can be weakened to a certain extent. Because the first muffler 411 and the second muffler 412 are in communication with each other, the second muffler 412 can be used to perform secondary noise reduction processing on the exhaust gas processed by the first muffler 411, further weaken the exhaust noise, and finally the exhaust pipe 420 in communication with the second muffler 412 can discharge the exhaust gas. While discharging the exhaust gas, the first muffler 411 and the second muffler 412 can also be used to jointly perform noise reduction processing on the exhaust gas to achieve noise reduction processing on high, medium and low different frequencies, improve the noise reduction effect of the vehicle exhaust system 400, and greatly avoid noise pollution caused by excessive noise when discharging the exhaust gas, and improve the use comfort of the vehicle.

[0085] In some embodiments, the volume of the first muffler 411 and / or the second muffler 412 is in the range of 25L-35L. Here, the volume of the first muffler 411 is in the range of 25L-35L; or, the volume of the second muffler 412 is in the range of 25L-35L; or, the volume of the first muffler 411 and the second muffler 412 is in the range of 25L-35L.

[0086] When the volume of the first muffler 411 is in the range of 25L-35L, the first muffler 411 has a certain volume, so that the first muffler 411 can better receive the exhaust gas discharged from the exhaust port of the engine 300, and the amount of exhaust gas received by the first muffler 411 is increased, so that the first muffler 411 can effectively reduce the noise volume of the exhaust gas when discharging, and the working performance of the first muffler 411 is ensured to a certain extent.

[0087] In specific examples, the volume of the first muffler 411 is 25L, 26L, 27L, 28L, 29L, 30L, 31L, 32L, 33L, 34L, or 35L, etc.

[0088] Meanwhile, when the volume of the second muffler 412 is in the range of 25L-35L, the second muffler 412 has a certain volume, so that the second muffler 412 can better receive exhaust gas, and the amount of exhaust gas received by the second muffler 412 is increased, so that the second muffler 412 can effectively reduce the noise volume of the exhaust gas when it is discharged, and to some extent, ensure the working performance of the second muffler 412.

[0089] In specific examples, the volume of the second muffler 412 is 25L, 26L, 27L, 28L, 29L, 30L, 31L, 32L, 33L, 34L, or 35L, etc.

[0090] In addition, when the volume of the first muffler 411 and the second muffler 412 is in the range of 25L-35L, the sum of the volumes of the first muffler 411 and the second muffler 412 is close to the volume of the muffler structure in the prior art, effectively ensuring the muffling performance of the muffler 410.

[0091] In some embodiments, as shown in Figure 3 The adjustment valve 430 is arranged at the inlet of the first muffler 411 and / or the second muffler 412, and is used to adjust the opening size of the inlet. Here, the adjustment valve 430 is arranged at the inlet of the first muffler 411; or, the adjustment valve 430 is arranged at the inlet of the second muffler 412; or, the adjustment valve 430 is arranged at the inlet of the first muffler 411 and the second muffler 412. When the adjustment valve 430 is arranged at the inlet of the first muffler 411, the opening size of the inlet of the first muffler 411 can be adjusted by the adjustment valve 430, so as to reduce the middle-low frequency noise flowing through the first muffler 411, and achieve the purpose of muffling and noise reduction. When the adjustment valve 430 is arranged at the inlet of the second muffler 412, the opening size of the inlet of the second muffler 412 can be adjusted by the adjustment valve 430, so as to reduce the middle-low frequency noise flowing through the second muffler 412.

[0092] In specific examples, the adjustment valve 430 is arranged at one of the inlets of the first muffler 411 and the second muffler 412, so that one of the first muffler 411 and the second muffler 412 can reduce the middle-low frequency noise, and the other can reduce the middle-high frequency noise, so that the first muffler 411 and the second muffler 412 can better solve the noise in different frequency ranges, and improve the noise reduction effect of the vehicle exhaust system 400.

[0093] In some embodiments, as shown inFigure 3 As shown, at least one of the first muffler 411 and the second muffler 412 is internally provided with the sound-absorbing member 440. Here, it is referred to that the first muffler 411 is internally provided with the sound-absorbing member 440; or, the second muffler 412 is internally provided with the sound-absorbing member 440; or, the first muffler 411 and the second muffler 412 are both internally provided with the sound-absorbing member 440, the sound-absorbing member 440 is used to receive the exhaust gas discharged from the exhaust port 310 of the engine 300, and to propagate and reflect the sound waves in the exhaust gas, so as to reduce the noise generated by the exhaust gas, and improve the noise reduction effect of at least one of the first muffler 411 and the second muffler 412.

[0094] In some embodiments, the sound-absorbing member 440 is soundproof cotton, which is arranged in at least one of the first muffler 411 and the second muffler 412, so as to improve the noise reduction effect of at least one of the first muffler 411 and the second muffler 412.

[0095] In a specific example, one of the first muffler 411 and the second muffler 412 is internally provided with the sound-absorbing member 440, so that the structures of the first muffler 411 and the second muffler 412 are different, thereby making the first muffler 411 and the second muffler 412 cooperate to better solve the noise in different frequency ranges of high, medium and low, and improve the noise reduction effect of the vehicle exhaust system 400.

[0096] Specifically, as shown in Figure 3 The second muffler 412 is internally provided with the sound-absorbing member 440, so as to set the second muffler 412 to reduce the noise in the medium and low frequency ranges, thereby making the first muffler 411 and the second muffler 412 cooperate to better solve the noise in different frequency ranges of high, medium and low, and improve the noise reduction effect of the vehicle exhaust system 400.

[0097] In some embodiments, as shown in Figure 1 The vehicle has a first vehicle cabin chassis 500, the first vehicle cabin chassis 500 defines a first vehicle cabin 100, the first muffler 411 is fixedly connected with the engine 300, and the second muffler 412 is fixedly connected with the first vehicle cabin chassis 500. Here, it can also be understood that the first muffler 411 and the second muffler 412 are fixedly connected on different structural members, so as to realize the decoupling of the first muffler 411 and the second muffler 412, avoid the relative vibration and mutual influence of the first muffler 411 and the second muffler 412, improve the structural stability of the first muffler 411 and the second muffler 412, and to a certain extent, guarantee the working performance of the first muffler 411 and the second muffler 412, and reduce the influence of vibration on the comfort of the vehicle.

[0098] Meanwhile, by fixing the first muffler 411 with the engine 300, the first muffler 411 can be fixed and supported by the engine 300, the structural stability of the first muffler 411 is improved, and the influence of vibration on the vehicle comfort is reduced through the suspension of the engine 300; by fixing the second muffler 412 with the first vehicle cabin chassis 500, the second muffler 412 can be fixed and supported by the first vehicle cabin chassis 500, the structural stability of the second muffler 412 is improved, and the structural stability of the first muffler 411 and the second muffler 412 is further improved.

[0099] The fixing of the first muffler 411 with the engine 300 and the fixing of the second muffler 412 with the first vehicle cabin chassis 500 can be bolt connection. The bolt connection can ensure the connection strength of the first muffler 411 with the engine 300 and the second muffler 412 with the first vehicle cabin chassis 500, and can also form detachable connection between the first muffler 411 and the engine 300 and between the second muffler 412 and the first vehicle cabin chassis 500, thereby reducing the installation and disassembly difficulty of the first muffler 411 with the engine 300 and the second muffler 412 with the first vehicle cabin chassis 500.

[0100] Of course, the fixing connection can also be other connection modes (such as clamping, bonding, etc.), which are not limited in the application.

[0101] In addition, the first vehicle cabin chassis 500 can be understood as a subframe of the vehicle.

[0102] In some embodiments, the first muffler 411 is fixedly connected with the engine 300 through a bracket (not shown in the bracket figure). The fixing connection of the first muffler 411 with the engine 300 can reduce the connection difficulty of the first muffler 411 with the engine 300 and improve the fixing connection quality of the first muffler 411 with the engine 300.

[0103] In some embodiments, the bracket is a stamping part, that is, the bracket is made by stamping process, so as to reduce the forming difficulty of the bracket and ensure the structural strength of the bracket, so that the fixing connection of the first muffler 411 with the engine 300 can be effectively realized by the bracket, and the bracket can play a role in reinforcing the connection of the first muffler 411 with the engine 300.

[0104] In a specific example, the bracket is a stamping connection plate. The structural strength of the bracket is improved, and the working performance of the bracket is ensured to a certain extent.

[0105] In some embodiments, in combination with Figure 2 and Figure 3As shown, the vehicle exhaust system 400 further comprises at least one lug rod 450, and the lug rod 450 is connected with the second muffler 412 and the first vehicle chassis 500 respectively. In order to realize the fixed connection of the second muffler 412 and the first vehicle chassis 500, reduce the connection difficulty of the second muffler 412 and the first vehicle chassis 500, thereby facilitating the support of the second muffler 412 by the first vehicle chassis 500, avoiding the vibration of the second muffler 412, and realizing the reduction of the influence of vibration on the comfort of the whole vehicle.

[0106] In some embodiments, in combination with Figure 2 and Figure 3 As shown, the lug rod 450 comprises a plurality of lug rods 450, and one of the lug rods 450 is connected with the exhaust pipe 420 and the first vehicle chassis 500 respectively. It can be understood here that when a plurality of lug rods 450 are provided, part of the lug rods 450 are connected with the second muffler 412 and the first vehicle chassis 500 respectively, and one of the lug rods 450 is connected with the exhaust pipe 420 and the first vehicle chassis 500 respectively. In order to realize that the lug rod 450 can not only realize the fixed connection of the second muffler 412 and the first vehicle chassis 500, but also realize the fixed connection of the exhaust pipe 420 and the first vehicle chassis 500, reduce the fixed connection difficulty of the exhaust pipe 420 and the first vehicle chassis 500, facilitate the fixation and support of the exhaust pipe 420 by the first vehicle chassis 500, improve the structural stability of the exhaust pipe 420, avoid the vibration of the exhaust pipe 420, and improve the exhaust performance of the exhaust pipe 420, while reducing the influence of vibration on the comfort of the vehicle, and improve the comfort of the vehicle.

[0107] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0108] In some embodiments, in combination with Figures 1-4 As shown, the vehicle exhaust system 400 further comprises a communication pipe 460, and the first muffler 411 and the second muffler 412 are connected in communication through the communication pipe 460. In order to realize the communication connection of the first muffler 411 and the second muffler 412, reduce the communication connection difficulty of the first muffler 411 and the second muffler 412, facilitate the noise reduction of the exhaust of the engine 300 by the first muffler 411 and the second muffler 412 in turn, improve the noise reduction effect of the vehicle exhaust system 400, and be beneficial to reduce the high, medium and low frequency noise generated when the exhaust gas is discharged.

[0109] In some embodiments, the communication pipe 460 is configured to be adjustable in length. On one hand, the length of the communication pipe 460 is adjustable during the process of connecting the first muffler 411 and the second muffler 412, which reduces the difficulty of the installation arrangement of the first muffler 411 and the second muffler 412; on the other hand, the length of the communication pipe 460 can be adjusted according to the vibration of the first muffler 411 and / or the second muffler 412 during the vibration process of the first muffler 411 and the second muffler 412, so as to avoid that when one of the first muffler 411 and the second muffler 412 vibrates, the other one of the first muffler 411 and the second muffler 412 is pulled to vibrate synchronously through the communication pipe 460, thereby realizing the decoupling cooperation of the first muffler 411 and the second muffler 412, improving the stability of the first muffler 411 and the second muffler 412, and further reducing the influence of vibration on the comfort of the vehicle.

[0110] In some embodiments, the communication pipe 460 is a bellows pipe, so that the length of the communication pipe 460 is adjustable, and the difficulty of adjusting the length of the communication pipe 460 is reduced.

[0111] Optionally, the bellows pipe is made of metal, which not only makes the communication pipe 460 have good corrosion resistance, but also makes the rigidity of the communication pipe 460 lower compared with a metal spring, so that the decoupling cooperation of the first muffler 411 and the second muffler 412 can be effectively realized by using the communication pipe 460, and the vibration generated by the first muffler 411 and the second muffler 412 is avoided from affecting each other.

[0112] In some embodiments, as shown in Figure 3 and Figure 4 , at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411 and / or the second muffler 412. Here, at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411, or at least one reinforcing rib 415 is arranged on the outer peripheral wall of the second muffler 412, or at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411 and the second muffler 412, so as to increase the structural strength of the first muffler 411 and / or the second muffler 412, improve the carrying capacity and durability of the first muffler 411 and / or the second muffler 412, and meet the problem of the vehicle system modal requirement.

[0113] In some embodiments, as shown in Figure 3 and Figure 4 , at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411 and / or the second muffler 412. Here, at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411, or at least one reinforcing rib 415 is arranged on the outer peripheral wall of the second muffler 412, or at least one reinforcing rib 415 is arranged on the outer peripheral wall of the first muffler 411 and the second muffler 412, so as to increase the structural strength of the first muffler 411 and / or the second muffler 412, improve the carrying capacity and durability of the first muffler 411 and / or the second muffler 412, and meet the problem of the vehicle system modal requirement.

[0114] Optionally, as shown in Figure 4As shown, the first muffler 411 comprises a first shell 413, and a plurality of reinforcing ribs 415 are arranged on the peripheral wall of the first shell 413 to realize the arrangement of the reinforcing ribs 415 on the peripheral wall of the first muffler 411.

[0115] Optionally, as Figure 3 shown, the second muffler 412 comprises a second shell 414, and a reinforcing rib 415 is arranged on the peripheral wall of the second shell 414 to realize the arrangement of the reinforcing rib 415 on the peripheral wall of the second muffler 412.

[0116] In some embodiments, the outlet of the exhaust pipe 420 is located in the first vehicle cabin 100 or the second vehicle cabin 200. That is, at least two mufflers 410 of the vehicle exhaust system 400 are arranged in the first vehicle cabin 100 in the present application, but the outlet position of the exhaust pipe 420 of the vehicle exhaust system 400 is not specifically limited. The outlet of the exhaust pipe 420 can be arranged in the first vehicle cabin 100, or the outlet of the exhaust pipe 420 can be arranged in the second vehicle cabin 200. Since the outlet of the exhaust pipe 420 occupies a small space, there is no problem of interference with the structural members in the second vehicle cabin 200 when arranged in the second vehicle cabin 200. Therefore, during the specific arrangement of the exhaust pipe 420, the arrangement can be arranged according to the specific structure, as long as the exhaust gas can be smoothly discharged through the exhaust pipe 420.

[0117] In addition, in some embodiments, the outlet of the exhaust pipe 420 is located in the first vehicle cabin 100, so that the outlet of the exhaust pipe 420 is arranged close to the muffler 410, which can shorten the extension length of the exhaust pipe 420, reduce the arrangement space required by the exhaust pipe 420, and reduce the use degree of the exhaust pipe 420.

[0118] In other embodiments, as Figure 1 shown, the outlet of the exhaust pipe 420 is located in the second vehicle cabin 200 and near the rocker beam 710 of the second vehicle cabin chassis 700, which can facilitate avoiding part of the structure of the first vehicle cabin 100 and reduce the arrangement difficulty of the exhaust pipe 420.

[0119] In a specific example, the outlet of the exhaust pipe 420 is arranged towards the rear lower side of the vehicle, which can avoid the exhaust gas flow discharged through the outlet of the exhaust pipe 420 from being vertically sprayed to the ground to some extent, thereby avoiding the influence of the heat gas collection on the second vehicle cabin chassis 700. Since the second vehicle cabin chassis 700 contains a large number of plastic, rubber, electronic control unit devices and other parts, the rapid aging of the parts in the second vehicle cabin chassis 700 can be avoided to cause the loss of function, and the service life of the parts in the second vehicle cabin chassis 700 can be prolonged.

[0120] In some embodiments, in combination with Figure 2 and Figure 4As shown, the vehicle exhaust system 400 further comprises a heat insulation assembly 470, and at least one outer periphery of the muffler 410 and the exhaust pipe 420 is provided with the heat insulation assembly 470. Here, it is referred to that the outer periphery of the muffler 410 is provided with the heat insulation assembly 470; or, the outer periphery of the exhaust pipe 420 is provided with the heat insulation assembly 470; or, the outer periphery of the muffler 410 and the exhaust pipe 420 is provided with the heat insulation assembly 470, and the heat insulation assembly 470 is used to realize heat insulation of at least one outer periphery of the muffler 410 and the exhaust pipe 420, thereby avoiding the high temperature of the exhaust gas from affecting other structural parts of the vehicle and prolonging the service life of other structural parts of the vehicle.

[0121] Here, the outer periphery of the muffler 410 provided with the heat insulation assembly 470 can be understood as that the outer periphery of the first muffler 411 and the second muffler 412 is provided with the heat insulation assembly 470.

[0122] In some embodiments, in combination with Figure 2 and Figure 4 As shown, the outer periphery of the muffler 410 is provided with the heat insulation assembly 470. In this way, the heat insulation assembly 470 is used to realize heat insulation of the muffler 410, thereby avoiding the high temperature inside the muffler 410 from affecting other structural parts of the vehicle and prolonging the service life of other structural parts of the vehicle.

[0123] In some embodiments, the outer periphery of the exhaust pipe 420 is provided with the heat insulation assembly 470. In this way, the heat insulation assembly 470 is used to realize heat insulation of the exhaust pipe 420, thereby avoiding the high temperature inside the exhaust pipe 420 from affecting other structural parts of the vehicle and prolonging the service life of other structural parts of the vehicle.

[0124] Of course, in other embodiments, the outer periphery of the exhaust pipe 420 can also not be provided with the heat insulation assembly 470, thereby reducing the use cost of the heat insulation assembly 470.

[0125] In some embodiments, in combination with Figure 2 and Figure 4 As shown, the heat insulation assembly 470 comprises a heat insulation material piece 471 and a heat insulation cover 472, the heat insulation material piece 471 is arranged in the heat insulation cover 472, and the heat insulation material piece 471 is sleeved on the outer periphery of at least one of the muffler 410 and the exhaust pipe 420. In this way, the heat insulation material piece 471 and the heat insulation cover 472 are used to realize heat insulation in cooperation, thereby improving the heat insulation effect of the heat insulation assembly 470.

[0126] Optionally, the heat insulation material piece 471 is aerogel insulation cotton, which is similar to sponge and has a large number of interconnected pores inside. The aerogel insulation cotton can effectively control the heat convection of the exhaust gas, prolong the heat conduction path and reduce the radiant heat, thereby improving the heat insulation effect of the heat insulation material piece 471.

[0127] Optionally, the heat insulation cover 472 is made of stainless steel, so that the heat insulation cover 472 has the characteristics of high temperature resistance and high toughness, thereby improving the heat insulation effect of the heat insulation cover 472 and thus improving the heat insulation effect of the heat insulation component 470.

[0128] Meanwhile, by placing the heat insulation material component 471 inside the heat insulation cover 472, the heat insulation cover 472 can also protect the heat insulation material component 471 and extend its service life.

[0129] Here, stainless steel can be understood as 304 stainless steel.

[0130] It should be noted that, through the above settings, in a specific example, when a heat insulation component 470 is fitted around the muffler 410, the surface temperature of the muffler 410 can be reduced to 125°C when the vehicle is in motion, thereby meeting the vehicle's maximum temperature requirements.

[0131] In some embodiments, combined with Figure 1 and Figure 2 As shown, the vehicle exhaust system 400 also includes a catalytic converter 480, which is located in the first vehicle compartment 100 and connected between the engine 300 and the muffler 410. The catalytic converter 480 can convert harmful substances in the exhaust gas discharged from the exhaust port 310 of the engine 300 into relatively harmless gases, playing an important role in purifying exhaust gas and protecting the environment. The relatively harmless gases treated by the catalytic converter 480 are then passed to the muffler 410 for further noise reduction treatment.

[0132] In some embodiments, such as Figure 4 As shown, a heat insulation component 470 is provided on the outer periphery of the catalyst 480. This is to insulate the catalyst 480 from heat, preventing the high temperature inside the catalyst 480 from affecting other structural components of the vehicle and extending the service life of other structural components.

[0133] Since the heat insulation component 470 includes a heat insulation material 471 and a heat insulation cover 472, and the heat insulation material 471 is located inside the heat insulation cover 472, it can be understood that an aerogel heat insulation cotton forming the heat insulation material 471 is sleeved on the outer periphery of the catalyst 480, and a heat insulation cover 472 is provided on the outer periphery of the aerogel heat insulation cotton. The heat insulation material 471 and the heat insulation cover 472 work together to insulate the catalyst 480 and reduce the risk of heat damage to vehicle parts by high-temperature gases.

[0134] The vehicle chassis assembly 1000 of this utility model is described below with reference to the accompanying drawings.

[0135] like Figure 1As shown, a vehicle chassis assembly 1000 according to an embodiment of the present utility model includes: a chassis 800, an engine 300, and a vehicle exhaust system 400.

[0136] Among them, such as Figure 1 As shown, the chassis 800 has a first vehicle compartment chassis 500 and a second vehicle compartment chassis 700. The first vehicle compartment chassis 500 and the second vehicle compartment chassis 700 are arranged sequentially along the length of the vehicle. The first vehicle compartment chassis 500 defines a first vehicle compartment 100, and the second vehicle compartment chassis 700 defines a second vehicle compartment 200.

[0137] like Figure 1 As shown, engine 300 is located in the first compartment 100.

[0138] like Figure 1 As shown, the vehicle exhaust system 400 is the same as the aforementioned vehicle exhaust system 400. The specific structure of the vehicle exhaust system 400 will not be described in detail here. The muffler 410 is located in the first compartment 100 and is connected to the engine 300.

[0139] This can be understood as the muffler 410 of the vehicle exhaust system 400 and the engine 300 being located in the same compartment (first compartment 100). This reduces the difficulty of connecting the muffler 410 and the engine 300, and also avoids the vehicle exhaust system 400 extending too far from front to back in the second compartment chassis 700 of the vehicle, reducing the difficulty of arranging the vehicle exhaust system 400, and also helps to improve the space utilization of the vehicle.

[0140] As can be seen from the above structure, the vehicle chassis assembly 1000 of this utility model embodiment, by adopting the aforementioned vehicle exhaust system 400, can not only exhaust the exhaust gas generated when the engine 300 is working, but also make full use of the space inside the first compartment 100 where the engine 300 is located, avoiding the vehicle exhaust system 400 occupying too much space on the vehicle, reducing the difficulty of arranging the vehicle exhaust system 400 and other structural components on the vehicle, and also reducing the noise generated by the vehicle during the exhaust process, thus improving the user experience.

[0141] In some embodiments, such as Figure 1 As shown, the vehicle chassis assembly 1000 also includes a battery pack 600, which is located in the second compartment 200. This placement of the battery pack 600 within the vehicle facilitates increased driving range and enhances the user experience.

[0142] Meanwhile, by arranging the battery pack 600 in the second vehicle cabin 200, the battery pack 600 and the vehicle exhaust system 400 can be arranged in different vehicle cabins of the vehicle respectively, so as to avoid mutual interference of the battery pack 600 and the vehicle exhaust system 400 during installation, and avoid heat transfer from the vehicle exhaust system 400 to the battery pack 600, thereby prolonging the service life of the battery pack 600.

[0143] Therefore, the at least two mufflers 410 of the vehicle exhaust system 400 are arranged in the first vehicle cabin 100, which can be understood as avoiding the battery pack 600, and can also release the use space in the second vehicle cabin 200, so that the battery pack 600 can be effectively arranged in the second vehicle cabin 200, and the assembly difficulty of the battery pack 600 is reduced.

[0144] The vehicle of the embodiment of the utility model is described below.

[0145] The vehicle according to the embodiment of the utility model comprises a vehicle chassis assembly 1000.

[0146] The vehicle chassis assembly 1000 is the aforementioned vehicle chassis assembly 1000, and the specific structure of the vehicle chassis assembly 1000 is not described herein.

[0147] As can be seen from the above structure, the vehicle of the embodiment of the utility model uses the aforementioned vehicle chassis assembly 1000, which not only reduces the assembly difficulty of the vehicle, but also reduces the noise generated by the vehicle during the exhaust process and improves the user experience.

[0148] The vehicle of the utility model can be understood as a hybrid vehicle.

[0149] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0150] Figure 1 Two mufflers 410 are shown for illustrative purposes, but it is obvious for those skilled in the art to understand that the scheme can be applied to three, four or more mufflers 410 after reading the above technical scheme, which also falls within the protection scope of the utility model.

[0151] The specific structure of the vehicle exhaust system 400, the vehicle chassis assembly 1000 and other components of the vehicle, such as the engine 300 and the auxiliary frame, according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail herein.

[0152] In the description of the present application, the description of the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0153] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle exhaust system for a vehicle having a first compartment (100) and a second compartment (200) arranged sequentially along its length, the first compartment (100) being adapted to house an engine (300), characterized in that, The vehicle exhaust system includes: At least two mufflers (410) are provided in the first vehicle compartment (100). Two adjacent mufflers (410) are interconnected. One muffler (410) is connected to the exhaust port (310) of the engine (300), and the other muffler (410) is connected to at least one exhaust pipe (420) to discharge the exhaust gas of the engine (300).

2. The vehicle exhaust system according to claim 1, characterized in that, The at least two mufflers (410) include a first muffler (411) and a second muffler (412) that are interconnected. The engine (300), the first muffler (411) and the second muffler (412) are all located in the first vehicle compartment (100). The first muffler (411) is connected to the engine (300), and the second muffler (412) is connected to the exhaust pipe (420).

3. The vehicle exhaust system according to claim 2, characterized in that, The volume of the first muffler (411) and / or the second muffler (412) ranges from 25L to 35L.

4. The vehicle exhaust system according to claim 2, characterized in that, A regulating valve (430) is provided at the inlet of the first silencer (411) and / or the second silencer (412), the regulating valve (430) being used to adjust the opening size of the inlet.

5. The vehicle exhaust system according to claim 2, characterized in that, At least one of the first muffler (411) and the second muffler (412) is provided with a sound-absorbing element (440).

6. The vehicle exhaust system according to claim 2, characterized in that, The vehicle has a first vehicle compartment chassis (500) that defines a first vehicle compartment (100), a first muffler (411) that is fixedly connected to the engine (300), and a second muffler (412) that is fixedly connected to the first vehicle compartment chassis (500).

7. The vehicle exhaust system according to claim 6, characterized in that, It also includes at least one lifting lug (450), which is connected to the second muffler (412) and the first vehicle chassis (500) respectively.

8. The vehicle exhaust system according to claim 7, characterized in that, The lifting lugs (450) include a plurality of them, one of which is connected to the exhaust pipe (420) and the first vehicle chassis (500).

9. The vehicle exhaust system according to claim 2, characterized in that, It also includes a connecting pipe (460), through which the first muffler (411) and the second muffler (412) are connected.

10. The vehicle exhaust system according to claim 9, characterized in that, The connecting pipe (460) is configured to have an adjustable length.

11. The vehicle exhaust system according to claim 2, characterized in that, At least one reinforcing rib (415) is provided on the outer peripheral wall of the first muffler (411) and / or the second muffler (412).

12. The vehicle exhaust system according to claim 1, characterized in that, The outlet of the exhaust pipe (420) is located in the first compartment (100) or the second compartment (200).

13. The vehicle exhaust system according to any one of claims 1-12, characterized in that, It also includes a heat insulation component (470), which is provided on at least one outer periphery of the muffler (410) and the exhaust pipe (420).

14. The vehicle exhaust system according to claim 13, characterized in that, The heat insulation assembly (470) includes a heat insulation material component (471) and a heat insulation cover (472). The heat insulation material component (471) is disposed inside the heat insulation cover (472) and is sleeved on the outer periphery of at least one of the muffler (410) and the exhaust pipe (420).

15. The vehicle exhaust system according to any one of claims 1-12, characterized in that, It also includes a catalyst (480) disposed in the first vehicle compartment (100) and connected between the engine (300) and the muffler (410).

16. The vehicle exhaust system according to claim 15, characterized in that, The catalyst (480) is provided with a heat insulation component (470) on its outer periphery.

17. A vehicle chassis assembly, characterized in that, include: The chassis (800) includes a first vehicle compartment chassis (500) and a second vehicle compartment chassis (700), the first vehicle compartment chassis (500) and the second vehicle compartment chassis (700) being arranged sequentially along the length of the vehicle, the first vehicle compartment chassis (500) defining the first vehicle compartment (100), and the second vehicle compartment chassis (700) defining the second vehicle compartment (200); An engine (300) is located in the first vehicle compartment (100); The vehicle exhaust system is the vehicle exhaust system according to any one of claims 1-16, wherein the muffler (410) is disposed in the first vehicle compartment (100) and the muffler (410) is connected to the engine (300).

18. The vehicle chassis assembly according to claim 17, characterized in that, It also includes a battery pack (600) located in the second compartment (200).

19. A vehicle, characterized in that, Includes the vehicle chassis assembly as described in claim 17 or 18.

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