Exhaust system, auxiliary frame assembly, chassis system, power system and vehicle

Abstract

The invention discloses an exhaust system, an auxiliary frame assembly, a chassis system, a power system and a vehicle. The exhaust system comprises an exhaust device, the exhaust device is arranged in a cabin of the vehicle, and the exhaust device is suitable for being communicated with an exhaust port of a power device; wherein the exhaust device is provided with an airflow leading-in port and a gas mixing cavity located in the exhaust device, the gas mixing cavity is communicated with the airflow leading-in port and an exhaust port of the power device, and waste gas of the power device is exhausted after being mixed with airflow passing through the airflow leading-in port in the gas mixing cavity through the exhaust port. According to the exhaust system, the air flow leading-in opening and the air mixing cavity are formed in the exhaust device, the exhaust device communicates with the waste gas exhaust opening of the power device, waste gas enters the air mixing cavity and then is mixed with air led in by the air flow leading-in opening, the temperature is lowered, then the waste gas is exhausted, the heat damage risk of the waste gas to a vehicle is reduced, and the safety of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle exhaust, and in particular to an exhaust system, a subframe assembly, a chassis system, a power system, and a vehicle. Background Technology

[0002] Currently, the layout of vehicle exhaust systems faces challenges. For example, exhaust pipes in related technologies are typically located at the bottom of the oil pan and pass under the vehicle's floor, and the high temperature of the airflow inside the exhaust pipe increases the risk of thermal damage to surrounding systems. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide an exhaust system. The exhaust system according to this invention includes an airflow inlet and a mixing chamber on the exhaust device. The exhaust device is connected to the exhaust port of the power unit. After the exhaust gas enters the mixing chamber, it mixes with the air introduced through the airflow inlet, cools down, and is then discharged, reducing the risk of thermal damage to the vehicle from exhaust gas and improving vehicle safety.

[0004] The present invention also proposes a subframe assembly including the above-described exhaust system.

[0005] The present invention also proposes a chassis system including the above-described exhaust system.

[0006] The present invention also proposes a power system including the above-described exhaust system.

[0007] The present invention also proposes a vehicle including the above-described power system.

[0008] The exhaust system according to the present invention includes an exhaust device disposed in the engine compartment of the vehicle, the exhaust device being adapted to communicate with the exhaust port of a power unit; wherein the exhaust device is provided with an airflow inlet and a mixing chamber, the mixing chamber being communicated with the airflow inlet and the exhaust port of the power unit respectively, the exhaust gas of the power unit being mixed with the airflow passing through the airflow inlet in the mixing chamber through the exhaust port and then discharged, the temperature of the discharged gas being lower than the exhaust temperature of the engine.

[0009] The exhaust system according to the present invention places the exhaust device inside the vehicle's engine compartment, typically at the front, so that both the inlet and outlet of the exhaust device are located at the front of the vehicle. This can also be understood as eliminating the need for the middle and rear sections of the exhaust pipe in related technologies, improving the compactness of the exhaust system and increasing the space available for other vehicle systems. The exhaust device includes an airflow inlet and a mixing chamber. The exhaust port of the power unit is connected to the exhaust device; therefore, the exhaust gas generated by the power unit can be transported to the mixing chamber through a pipeline. The exhaust gas entering the mixing chamber mixes and cools with the air entering through the airflow inlet. Finally, the mixed gas is discharged through the exhaust device. The arrangement of the mixing chamber and the airflow inlet enables the exhaust device to reduce the temperature of the exhaust gas entering the mixing chamber, thereby lowering the temperature of the final discharged mixed gas, reducing the thermal hazards of exhaust gas to the vehicle structure, and improving vehicle safety.

[0010] According to one embodiment of the present invention, the exhaust device includes: a housing, a first muffler unit and a second muffler unit, wherein the mixing chamber is formed inside the housing; the first muffler unit and the second muffler unit are respectively disposed inside the housing and located on both sides of the mixing chamber and communicating with the mixing chamber, wherein the first muffler unit and the second muffler unit respectively guide the exhaust of the power device into the mixing chamber.

[0011] According to one embodiment of the present invention, the mixing chamber and the airflow inlet are respectively located in the middle of the outer casing.

[0012] According to one embodiment of the present invention, the airflow inlet includes a first inlet, which is disposed at the front of the housing and at least partially overlaps with the mixing chamber in the front-rear direction.

[0013] According to one embodiment of the present invention, a windward wall is formed on the front surface of the housing, and the first inlet is formed on the windward wall.

[0014] According to one embodiment of the present invention, the windward wall is inclined toward the rear of the vehicle in a direction toward the bottom of the vehicle.

[0015] According to one embodiment of the present invention, the first inlet is configured as a plurality of inlets arranged at intervals on the windward wall.

[0016] According to one embodiment of the present invention, the airflow inlet further includes a second inlet, the second inlet being disposed on the top of the housing, and a guide plate being formed on the housing, the guide plate extending in the height direction and guiding the airflow to the second inlet.

[0017] According to one embodiment of the present invention, the width of the air guide plate gradually decreases in the direction close to the second inlet.

[0018] According to one embodiment of the present invention, the air guide plate has flanges extending toward the front of the vehicle on both sides in the width direction.

[0019] According to one embodiment of the present invention, the bottom of the housing is provided with a mixture outlet facing the rear of the vehicle.

[0020] According to one embodiment of the present invention, a protruding exhaust shell is formed at the bottom of the outer shell, an exhaust channel communicating with the mixing chamber is formed inside the exhaust shell, and a mixing outlet communicating with the exhaust channel is provided at the rear of the exhaust shell.

[0021] According to one embodiment of the present invention, the angle between the outlet direction of the mixture outlet and the vehicle's longitudinal direction is an acute angle.

[0022] According to one embodiment of the invention, the thickness of the exhaust shell gradually increases in the direction from front to back, and the front surface of the exhaust shell is formed as a guide surface that slopes towards the bottom in the direction from front to back.

[0023] According to one embodiment of the present invention, the air guide plate is disposed on the upstream side of the housing and is adapted to guide the airflow blown out by the heat dissipation device into the mixing chamber.

[0024] According to one embodiment of the present invention, the exhaust device is provided with a connecting bracket for connecting to the subframe.

[0025] According to one embodiment of the present invention, the connecting bracket is detachably connected to the exhaust device.

[0026] According to one embodiment of the present invention, the exhaust system further includes a catalytic converter disposed between the exhaust port of the power unit and the exhaust device.

[0027] The subframe assembly according to the present invention is briefly described below.

[0028] The subframe assembly according to the present invention includes a beam, on which the exhaust system of the present embodiment is disposed. The beam serves as a supporting structure for the vehicle body, and the exhaust system can be fixed to the beam, resulting in good stability after assembly. Fixing the exhaust system to the beam also optimizes the spatial layout of the vehicle chassis and facilitates the arrangement of other vehicle body structures.

[0029] According to one embodiment of the present invention, the beam includes the subframe frame, and the exhaust device of the exhaust system is connected to the subframe frame.

[0030] According to one embodiment of the present invention, the subframe includes: a first longitudinal beam, a second longitudinal beam, and a crossbeam, wherein the exhaust device is connected between the first longitudinal beam and the second longitudinal beam at a distance from each other; and the crossbeam is connected between the first longitudinal beam and the second longitudinal beam and is spaced apart from the exhaust device in the front-rear direction.

[0031] According to one embodiment of the present invention, the subframe frame is constructed as a butterfly-shaped subframe.

[0032] The chassis system according to the present invention is briefly described below.

[0033] The chassis system according to the present invention includes the exhaust system in the above embodiments. Since the chassis system according to the present invention is provided with the exhaust system in the above embodiments, the exhaust gas generated by the vehicle power unit can be treated by the exhaust system in the chassis system before being discharged to the outside, ensuring that the gas finally discharged by the power system is low temperature and harmless, avoiding pollution to the atmosphere, and improving the exhaust efficiency of the chassis system and the environmental friendliness of the exhaust.

[0034] The power system according to the present invention is briefly described below.

[0035] The power system according to the present invention includes an engine assembly, an electric drive assembly, and an exhaust system as described in the above embodiments. The exhaust device of the exhaust system is connected to the exhaust port of the engine assembly and the exhaust port of the electric drive assembly, respectively. Since the power system according to the present invention includes an engine assembly, an electric drive assembly, and an exhaust system as described in the above embodiments, the exhaust gas generated by the engine assembly and the electric motor assembly can enter the exhaust system. The exhaust system can perform a series of treatments on the exhaust gas, such as cooling, noise reduction, and converting harmful substances into harmless substances, to ensure that the final exhaust gas is low-temperature and harmless, thus avoiding air pollution.

[0036] According to one embodiment of the present invention, the power system further includes a heat dissipation device disposed at the front of the exhaust device and adapted to drive airflow toward the airflow inlet.

[0037] The vehicle according to the present invention is briefly described below.

[0038] The vehicle according to the present invention includes the exhaust system, subframe assembly, chassis system, or power system described in the above embodiments. Therefore, during vehicle operation, the exhaust gases generated by the power system can be effectively improved by the exhaust system 1, reducing the temperature, noise, and harmfulness of the final exhaust gases, avoiding thermal damage to the vehicle structure from the exhaust gases, and improving the vehicle's safety and comfort.

[0039] Additional aspects and advantages of the 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

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is an assembly drawing of an exhaust system and a subframe frame according to an embodiment of the present invention;

[0042] Figure 2 This is a side view of an exhaust system according to an embodiment of the present invention;

[0043] Figure 3 This is a structural diagram of a subframe assembly according to an embodiment of the present invention;

[0044] Figure 4 This is a top view of an exhaust device according to an embodiment of the present invention;

[0045] Figure 5 This is an airflow diagram of an exhaust system according to an embodiment of the present invention;

[0046] Figure 6 This is a structural diagram of a subframe frame according to an embodiment of the present invention.

[0047] Figure label:

[0048] Exhaust system 1;

[0049] Exhaust device 11;

[0050] 111 outer shell, 112 mixing chamber, 113 first silencing unit, 114 second silencing unit, 115 first inlet, 116 second inlet, 117 windward wall, 118 air guide plate, 1181 flange, 119 mixing outlet, 1191 exhaust shell, 1192 air guide surface;

[0051] Catalytic device 12;

[0052] Connecting bracket 13;

[0053] Subframe assembly 2;

[0054] Subframe frame 21, first longitudinal beam 211, second longitudinal beam 212, crossbeam 213;

[0055] 301. Cooling device; 302. Engine assembly; 303. Electric drive assembly; 304. Bellows. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] Currently, the layout of vehicle exhaust systems faces challenges. Exhaust pipes in related technologies are typically located at the bottom of the oil pan and pass under the vehicle's floor, and the high temperature of the airflow within the exhaust pipe increases the risk of thermal damage to surrounding systems.

[0058] The following is for reference. Figures 1-6 An exhaust system according to an embodiment of the present invention is described.

[0059] The exhaust system 1 according to the present invention includes an exhaust device 11, which is disposed in the engine compartment of a vehicle and is adapted to communicate with the exhaust port of a power unit. The exhaust device 11 is provided with an airflow inlet and a mixing chamber 112, which communicates with both the airflow inlet and the exhaust port of the power unit. Exhaust gas from the power unit mixes with the airflow passing through the airflow inlet in the mixing chamber 112 before being discharged. The temperature of the discharged gas is lower than the engine exhaust temperature. It should be noted that the engine exhaust temperature can be understood as the temperature before passing through the catalytic converter and muffler.

[0060] According to the exhaust system 1 of the present invention, the exhaust device 11 is disposed in the vehicle's engine compartment, typically at the front, so that both the inlet and outlet of the exhaust device 11 are located on the front side of the vehicle. This can also be understood as eliminating the need for the middle and rear sections of the exhaust pipe in related technologies, improving the compactness of the exhaust system 1 and increasing the space available for other vehicle systems. The exhaust device 11 is provided with an airflow inlet and a mixing chamber 112. The exhaust port of the power unit is connected to the exhaust device 11. Therefore, the exhaust gas generated by the power unit can be transported to the mixing chamber 112 through a pipeline. The exhaust gas entering the mixing chamber 112 can mix and cool with the air entering through the airflow inlet. Finally, the mixed gas can be discharged through the exhaust device 11. The arrangement of the mixing chamber 112 and the airflow inlet enables the exhaust device 11 to reduce the temperature of the exhaust gas entering the mixing chamber 112, thereby lowering the temperature of the finally discharged mixed gas. This ensures that the temperature of the discharged gas is lower than that of the engine exhaust gas, reducing the thermal hazards of exhaust gas to the vehicle structure and improving vehicle safety.

[0061] According to one embodiment of the present invention, the exhaust device 11 includes: a housing 111, a first silencing unit 113 and a second silencing unit 114, and a mixing chamber 112 is formed inside the housing 111; the first silencing unit 113 and the second silencing unit 114 are respectively disposed inside the housing 111 and located on both sides of the mixing chamber 112 and communicating with the mixing chamber 112, and the first silencing unit 113 and the second silencing unit 114 respectively guide the exhaust of the power device into the mixing chamber 112.

[0062] Since the exhaust device 11 is a structure for treating exhaust gas, its construction affects the final emission of exhaust gas generated by the power unit. Specifically, the exhaust device 11 is provided with a housing 111, and a first silencing unit 113 and a second silencing unit 114 are provided inside the housing 111. The first silencing unit 113 and the second silencing unit 114 are structures used to eliminate exhaust gas noise. The first silencing unit 113 and the second silencing unit 114 are located on both sides of the mixing chamber 112 in the width direction, and respectively connect the exhaust port of the power unit to the mixing chamber 112. It can be simply understood that the first silencing unit 113 connects the exhaust port of the power unit to the mixing chamber 112; the second silencing unit 114 also connects the exhaust port of the power unit to the mixing chamber 112. The arrangement of the first silencing unit 113 and the second silencing unit 114 allows the exhaust device 11 to simultaneously introduce the exhaust gas of the power unit and perform silencing and cooling treatment on the exhaust gas, thereby improving the efficiency and capacity of the exhaust device 11 in treating exhaust gas.

[0063] In some embodiments, more silencers may be provided in the mixing chamber 112, or only one silencer may be provided. The specific number of power devices that generate exhaust gas can be determined according to the actual assembly process.

[0064] According to one embodiment of the present invention, the mixing chamber 112 and the airflow inlet are respectively located in the middle of the housing 111. Positioning both the mixing chamber 112 and the airflow inlet in the middle of the housing 111 helps to distribute the airflow introduced from the outside more evenly within the mixing chamber 112, thereby achieving more thorough mixing with the exhaust gas from the power unit, thus optimizing exhaust efficiency and reducing the possibility of insufficiently mixed exhaust gas being directly emitted into the environment.

[0065] In addition, the position of the middle part of the outer casing 111 is relatively flexible. Setting the mixing chamber 112 and the airflow inlet in the middle part of the outer casing 111 can adapt to the layout requirements of different vehicle models and power systems, thereby improving the versatility and adaptability of the exhaust system 1.

[0066] According to one embodiment of the present invention, the airflow inlet includes a first inlet 115, which is disposed at the front of the housing 111 and at least partially overlaps with the mixing chamber 112 in the front-back direction. Specifically, by disposing the first inlet 115 at the front of the housing 111 and at least partially overlapping with the mixing chamber 112 in the front-back direction, it is possible to ensure that the external airflow enters the mixing chamber 112 directly, rapidly, and uniformly, and the airflow path is short, reducing airflow loss during the flow process and thereby improving the utilization efficiency of the airflow.

[0067] According to one embodiment of the present invention, a windward wall 117 is formed on the front surface of the housing 111, and a first inlet 115 is formed on the windward wall 117. The design of the windward wall 117 allows oncoming air to impact the windward wall 117 more directly when the vehicle is in motion, and thus makes it easier for the air to be guided into the mixing chamber 112 by the first inlet 115.

[0068] According to one embodiment of the present invention, the windward wall 117 is inclined toward the rear of the vehicle in a direction toward the bottom of the vehicle. Since the windward wall 117 is inclined, the angle between the surface of the windward wall 117 and the airflow direction is small, so the resistance generated when the airflow hits the windward wall 117 is small, thereby improving the efficiency of airflow introduction.

[0069] According to one embodiment of the present invention, the first inlet 115 is configured as a plurality of inlets spaced apart on the windward wall 117. By arranging a plurality of first inlets 115 spaced apart on the windward wall 117, the exhaust system 1 can make the external airflow more evenly distributed in the mixing chamber 112, ensuring that the exhaust gas and the external airflow can be mixed more thoroughly. The total area of ​​the plurality of inlets is relatively large, which can reduce the local resistance of the airflow at the inlets, help to reduce the airflow resistance of the entire exhaust system 1, improve the efficiency of airflow introduction, and even if one or more inlets are blocked or damaged, the other inlets can still work normally, thus improving the stability and reliability of the exhaust system 1.

[0070] According to one embodiment of the present invention, the airflow inlet further includes a second inlet 116, which is disposed on the top of the housing 111. A guide vane 118 is formed on the housing 111, extending in the height direction and guiding the airflow to the second inlet 116. By providing the second inlet 116 on the top of the housing 111, the exhaust system 1 provides a new inlet path for external airflow to enter the mixing chamber 112, i.e., the airflow enters the mixing chamber 112 through the second inlet 116. This design increases the area of ​​the exhaust system 1 that receives airflow, increases the total amount of airflow introduced, and thus enhances the performance of the exhaust system 1. The design of the guide vane 118 can effectively guide the airflow at the top to the second inlet 116 and mix it with the exhaust gas discharged from the exhaust port of the power unit in the mixing chamber 112. The arrangement of the guide vane 118 improves the airflow guiding efficiency of the second inlet 116.

[0071] In some embodiments, the direction and speed of airflow may vary due to different vehicle operating environments. The second inlet 116 and the first inlet 115 are respectively disposed on the top and front of the housing 111. By providing the first inlet 115 and the second inlet 116, the exhaust system 1 can simultaneously receive airflow from different directions, thereby improving the system's adaptability to different environments.

[0072] According to one embodiment of the present invention, the width of the air guide plate 118 gradually decreases in the direction approaching the second inlet 116. This gradually decreasing width design of the air guide plate 118 can more effectively guide the airflow to the second inlet 116, reducing airflow diffusion and turbulence, increasing the intake efficiency of the second inlet 116, and allowing the airflow to enter the exhaust system 1 more concentratedly. Furthermore, due to the width design of the air guide plate 118, the airflow will experience a certain acceleration effect when passing through it, which can increase the airflow velocity entering the second inlet 116, further increasing the efficiency and effectiveness of airflow mixing with exhaust gas.

[0073] According to one embodiment of the present invention, the air guide plate 118 has flanges 1181 extending toward the front of the vehicle on both sides in the width direction. The design of the flanges 1181 can further concentrate and guide the airflow, so that the airflow is more directly and effectively guided to the second inlet 116, which can improve the efficiency of airflow introduction and reduce the diffusion and turbulence of airflow around the air guide plate 118, thereby improving the overall performance of the exhaust system 1.

[0074] In addition, the flange 1181 can increase the structural strength of the air guide plate 118, enabling the air guide plate 118 to resist the impact of wind pressure and other external factors, and ensuring that the air guide plate 118 maintains a stable shape and position during vehicle operation.

[0075] According to one embodiment of the present invention, a mixing outlet 119 facing the rear of the vehicle is provided at the bottom of the housing 111. The mixing outlet 119 is the exhaust port of the gas in the mixing chamber 112. By placing the mixing outlet 119 at the bottom of the housing 111 of the exhaust system 1 and facing the rear of the vehicle, it can ensure that the exhaust gas and the introduced airflow are fully mixed in the mixing chamber 112 and then discharged to the outside of the vehicle at the optimal angle and direction. At the same time, the mixing outlet is located at the bottom of the housing 111 to facilitate the discharge of the mixed gas, avoid the exhaust gas from remaining in the mixing chamber 112 for a long time, reduce air pollution inside the vehicle, and reduce the possibility of exhaust gas backflow after the vehicle is parked.

[0076] According to one embodiment of the present invention, a protruding exhaust shell 1191 is formed at the bottom of the outer casing 111. An exhaust channel communicating with the mixing chamber 112 is formed inside the exhaust shell 1191, and a mixing outlet 119 communicating with the exhaust channel is provided at the rear of the exhaust shell 1191. The design of the protruding exhaust shell 1191 and the internal exhaust channel ensures that the mixture of exhaust gas and inlet airflow flows more smoothly to the mixing outlet 119. This reduces the resistance of the exhaust outlet to the mixed airflow and improves the overall exhaust efficiency of the exhaust system 1.

[0077] According to one embodiment of the present invention, the angle between the outlet direction of the mixture outlet 119 and the vehicle's longitudinal direction is an acute angle. This acute angle design prevents the exhaust gas from the mixture outlet 119 from directly impacting the ground, thus reducing the gas's impact on the ground and meeting national requirements.

[0078] According to one embodiment of the present invention, the thickness of the exhaust housing 1191 gradually increases from front to rear, and the front surface of the exhaust housing 1191 forms a guide surface 1192 that slopes downwards from front to rear. The thickness design of the exhaust housing 1191 increases the area of ​​the air-fuel mixture outlet 119, improving exhaust efficiency. Simultaneously, the thickness design of the exhaust housing 1191 facilitates the formation of the guide surface 1192, which allows the mixed airflow to flow gradually downwards from front to rear, facilitating smoother entry of the airflow into the exhaust channel, reducing eddies and resistance on the surface of the exhaust housing 1191, and improving exhaust efficiency. Furthermore, the guide surface 1192 can also guide the airflow to the air-fuel mixture outlet 119, ensuring that the mixed gas is discharged outside the vehicle at the optimal angle and direction, preventing the airflow from directly hitting the ground.

[0079] According to one embodiment of the present invention, a guide vane 118 is disposed on the upstream side of the housing 111 and is adapted to guide the airflow blown out by the heat dissipation device into the mixing chamber 111. For example... Figure 3 and Figure 5As shown, the air guide plate 118 is located on the upstream side of the outer casing 111. The gas discharged from the heat dissipation device 301 can be guided by the air guide plate 118 to quickly enter the mixing chamber 112 and mix with the gas in the mixing chamber 112, which can effectively reduce the temperature of the gas discharged from the mixing chamber 112.

[0080] According to one embodiment of the present invention, the exhaust device 11 is provided with a connecting bracket 13 for connecting the subframe frame 21. The connecting bracket 13 can connect and fix the exhaust device 11 to the subframe frame 21, thereby improving the assembly stability of the exhaust device 11.

[0081] According to one embodiment of the present invention, the connecting bracket 13 and the exhaust device 11 are detachably connected. The detachable connection between the connecting bracket 13 and the exhaust device 11 facilitates the assembly and disassembly of the exhaust device, improves the efficiency of adjusting the position of the exhaust device and disassembling and maintaining it, and the detachable connection can be used to choose to fix the connecting bracket 13 and the exhaust device 11 first and then assemble them as a whole to the subframe frame 21, depending on the actual assembly situation; or the connecting bracket 13 can be directly assembled to the subframe frame 21 first and then the exhaust device 11 can be assembled.

[0082] According to one embodiment of the present invention, the exhaust system 1 further includes a catalytic converter 12, which is disposed between the exhaust port of the power unit and the exhaust device 11. The catalytic converter 12 converts harmful substances (such as carbon monoxide, hydrocarbons, and nitrogen oxides) in the exhaust gas emitted by the power unit into harmless substances (such as carbon dioxide, nitrogen, and water vapor) through a catalytic reaction, thereby reducing environmental pollution from the gas discharged from the mixed-gas outlet 119 and protecting air quality. Furthermore, the design of the catalytic converter 12 can optimize the flow path of the exhaust gas, reduce noise and vibration in the exhaust system 1, and improve vehicle ride comfort and driving stability.

[0083] In some embodiments, the catalytic converter 12 and the exhaust system 11 can be connected by a bellows 304.

[0084] The subframe assembly 2 according to the present invention is briefly described below.

[0085] The subframe assembly 2 according to the present invention includes a beam on which the exhaust system of the present embodiment is disposed. The beam is a supporting structure of the vehicle body, and the exhaust system 1 can be fixed to the beam, resulting in good stability after assembly. Fixing the exhaust system 1 to the beam can also optimize the spatial layout of the vehicle chassis and facilitate the arrangement of other vehicle body structures.

[0086] According to one embodiment of the present invention, the beam includes a subframe frame 21, and the exhaust device 11 of the exhaust system 1 is connected to the subframe frame 21. During assembly, the exhaust device 11 can be fixedly connected to the subframe frame 21 by a bracket or other structure to ensure the stability of the exhaust device 11 assembly. Connecting the exhaust system 1 to the subframe frame 21 can optimize the spatial layout of the vehicle chassis, and fixing the exhaust system 1 to the subframe frame 21 can improve the structural stability of the subframe assembly 2.

[0087] According to one embodiment of the present invention, the subframe 21 includes a first longitudinal beam 211, a second longitudinal beam 212, and a crossbeam 213. An exhaust device 11 is provided between the first longitudinal beam 211 and the second longitudinal beam 212 at intervals. The crossbeam 213 is provided between the first longitudinal beam 211 and the second longitudinal beam 212 and is spaced apart from the exhaust device 11 in the longitudinal direction. Since the exhaust device 11 is fixed to the subframe 21, the structure of the subframe 21 affects the connection between the exhaust device 11 and the subframe 21. Specifically, the subframe assembly 2 is provided with a first longitudinal beam 211 and a second longitudinal beam 212 spaced apart from each other, and is connected to the first longitudinal beam 211 and the second longitudinal beam 212 by a crossbeam 213, which improves the structural strength of the subframe frame 21. The exhaust device 11 is connected between the first longitudinal beam 211 and the second longitudinal beam 212. This layout allows the exhaust system 1 to be more stably fixed on the subframe frame 21, thereby improving the structural stability of the subframe assembly 2.

[0088] According to one embodiment of the present invention, the subframe frame 21 is constructed as a butterfly-shaped subframe. Unlike the above embodiments where the subframe frame 21 includes a first longitudinal beam 211, a second longitudinal beam 212, and a crossbeam 213, the subframe frame 21 can also be constructed as a butterfly-shaped subframe, which improves the aesthetics of the subframe frame 21 while still satisfying the assembly requirements of the exhaust device 11. It also improves the versatility of the exhaust device 11 assembly, meaning it can be adapted to different subframe frames 21.

[0089] The chassis system according to the present invention is briefly described below.

[0090] The chassis system according to the present invention includes the exhaust system 1 in the above embodiments. Since the chassis system according to the present invention is provided with the exhaust system 1 in the above embodiments, the exhaust gas generated by the vehicle power unit can be treated by the exhaust system in the chassis system before being discharged to the outside, ensuring that the gas finally discharged by the power system is low temperature and harmless, avoiding pollution to the atmosphere, and improving the exhaust efficiency of the chassis system and the environmental friendliness of the exhaust.

[0091] The power system according to the present invention is briefly described below.

[0092] The power system according to the present invention includes an engine assembly 302, an electric drive assembly 303, and an exhaust system 1 as described in the above embodiments. The exhaust device 11 of the exhaust system 1 is connected to the exhaust port of the engine assembly 302 and the exhaust port of the electric drive assembly 303, respectively. Since the power system according to the present invention is provided with an engine assembly 302, an electric drive assembly 303, and an exhaust system 1 as described in the above embodiments, the exhaust gases generated by the engine assembly 302 and the electric motor assembly can simultaneously enter the exhaust system 1. The exhaust system 1 can perform a series of treatments on the exhaust gases, such as cooling, noise reduction, and converting harmful substances into harmless substances, to ensure that the gas finally discharged by the power system is low-temperature and harmless, thereby avoiding air pollution and improving the exhaust efficiency and environmental friendliness of the power system.

[0093] In some embodiments, the engine assembly 302 may be an inline engine, and the engine assembly 302 and the electric drive assembly 303 may be arranged side by side in the width direction of the vehicle body, which can improve the compactness of the vehicle structure layout.

[0094] According to one embodiment of the present invention, the power system further includes a heat dissipation device 301, which is disposed at the front of the exhaust device 11 and adapted to drive the airflow toward the airflow inlet. The heat dissipation device 301 can be a fan or similar structure. Distributed at the front of the exhaust device 11, the heat dissipation device 301 provides low-temperature airflow to the exhaust device 11 during operation. Guided by the air guide plate 118, the low-temperature airflow enters the mixing chamber 112 through the second inlet 116, effectively reducing the temperature of the exhaust gas and minimizing the thermal hazards of the gas ultimately exiting the mixing outlet 119.

[0095] The vehicle according to the present invention is briefly described below.

[0096] The vehicle according to the present invention includes the exhaust system 1, subframe assembly 2, chassis system, or power system as described in the above embodiments. Therefore, when the vehicle is running, the exhaust gas generated by the power system can be effectively improved by the exhaust system 1, reducing the temperature, noise, and harmfulness of the final exhaust gas, avoiding thermal damage to the vehicle structure from the exhaust gas, and improving the safety and comfort of the vehicle.

[0097] Figure 5 The arrows shown indicate the direction of airflow.

[0098] In the description of this invention, 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," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0099] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0100] In the description of this invention, "a plurality of" means two or more.

[0101] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0102] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0103] 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., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] Although embodiments of the 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An exhaust system characterized by, The exhaust device (11) is adapted to communicate with the exhaust port of the power device. The exhaust device (11) is provided with an air flow guide inlet and a mixing chamber (112), which respectively communicate with the air flow guide inlet and the exhaust port of the power device. The exhaust device (11) comprises: An outer shell (111) formed with the mixing chamber (112) inside; 2. The exhaust system of claim 1, wherein, A first muffling unit (113) and a second muffling unit (114) respectively arranged in the outer shell (111) and located on both sides of the mixing chamber (112) and communicating with the mixing chamber (112), the first muffling unit (113) and the second muffling unit (114) respectively guide the exhaust of the power device into the mixing chamber (112). The mixing chamber (112) and the air flow guide inlet are respectively located in the middle of the outer shell (111). The air flow guide inlet comprises a first guide inlet (115) arranged in the front of the outer shell (111) and at least partially coinciding with the mixing chamber (112) in the front-rear direction.

3. The exhaust system of claim 2, wherein, The front surface of the outer shell (111) forms a windward wall (117), and the first guide inlet (115) is formed on the windward wall (117).

4. The exhaust system of claim 2, wherein, The windward wall (117) is inclined to the rear side of the vehicle in the direction towards the bottom of the vehicle.

5. The exhaust system of claim 4, wherein, The first guide inlet (115) is configured as a plurality of intervals arranged on the windward wall (117).

6. The exhaust system of claim 5, wherein, The air flow guide inlet further comprises a second guide inlet (116) arranged on the top of the outer shell (111), and a wind deflector (118) is formed on the outer shell (111), which extends in the height direction and guides the air flow to the second guide inlet (116).

7. The exhaust system of claim 5, wherein, The width of the wind deflector (118) gradually decreases in the direction close to the second guide inlet (116).

8. The exhaust system of claim 2, wherein, Both sides of the wind deflector (118) in the width direction are respectively formed with a flange (1181) extending towards the front of the vehicle.

9. The exhaust system of claim 8, wherein, The bottom of the outer shell (111) is provided with a mixing outlet (119) towards the rear side of the vehicle.

10. The exhaust system of claim 9, wherein, The bottom of the outer shell (111) is formed with a protruding exhaust shell (1191), and an exhaust passage communicating with the mixing chamber (112) is formed inside the exhaust shell (1191), and the rear part of the exhaust shell (1191) is provided with the mixing outlet (119) communicating with the exhaust passage.

11. The exhaust system of claim 2, wherein, The angle between the outlet direction of the mixing outlet (119) and the front-rear direction of the vehicle is an acute angle.

12. The exhaust system of claim 11, wherein, The thickness of the exhaust shell (1191) gradually increases in the direction from front to back, and the front surface of the exhaust shell (1191) forms a wind guide surface (1192) inclined towards the bottom in the direction from front to back.

13. The exhaust system of claim 12, wherein, ​ 14. The exhaust system of claim 12, wherein, ​ 15. An exhaust system according to claim 14, characterised in that, The air deflector (118) is arranged on the upstream side of the housing (111) and is adapted to guide the airflow blown by the heat dissipation device into the air mixing cavity (112).

16. The exhaust system of claim 1, wherein, The exhaust device (11) is provided with a connecting bracket (13) for connecting a subframe.

17. An exhaust system according to claim 16, characterised in that, The connecting bracket (13) is detachably connected with the exhaust device (11).

18. The exhaust system of claim 1, wherein, Further comprising: A catalytic device (12) arranged between the exhaust port of the power device and the exhaust device (11).

19. A subframe assembly characterized by, Comprising: A beam body provided with the exhaust system according to any one of claims 1-18.

20. The subframe assembly of claim 19, wherein, The beam body comprises a subframe frame (21), and the exhaust device (11) of the exhaust system is connected with the subframe frame (21).

21. The subframe assembly of claim 20, wherein, The subframe frame (21) comprises: A first longitudinal beam (211) and a second longitudinal beam (212), and the exhaust device (11) is arranged between the first longitudinal beam (211) and the second longitudinal beam (212) at intervals; A cross beam (213) connected between the first longitudinal beam (211) and the second longitudinal beam (212) and arranged at intervals with the exhaust device (11) in the front-rear direction.

22. The subframe assembly of claim 20, wherein, The subframe frame (21) is configured as a butterfly-shaped subframe.

23. A chassis system characterized by, Comprising: An exhaust system configured as the exhaust system according to any one of claims 1-18.

24. A power system characterized by, Comprising: An engine assembly (302) and an electric drive assembly (303); An exhaust system, and the exhaust device (11) of the exhaust system is respectively communicated with the exhaust port of the engine assembly (302) and the exhaust port of the electric drive assembly (303), and the exhaust system is configured as the exhaust system according to any one of claims 1-18.

25. The power system of claim 24, wherein, Further comprising: A heat dissipation device (301) arranged at the front of the exhaust device (11) and adapted to drive airflow to the airflow inlet.

26. A vehicle characterized by The exhaust system according to any one of claims 1-18, the subframe assembly according to any one of claims 19-22, the chassis system according to claim 23, or the power system according to any one of claims 24-25.

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