Vehicle

Abstract

The invention relates to the technical field of vehicles, and provides a vehicle to at least solve the problem that the cooling effect of an exhaust assembly is poor. The vehicle comprises oxygen production equipment, an exhaust assembly of an engine and an enclosure assembly. And the oxygen production equipment comprises an oxygen-enriched gas outlet and a nitrogen-enriched gas outlet. The enclosing assembly encloses at least part of the exhaust assembly in the circumferential direction, so that a second exhaust channel is formed between the enclosing assembly and the exhaust assembly. And the second exhaust channel is communicated with the nitrogen-rich gas outlet. The exhaust assembly exhausts high-temperature engine gas. While oxygen is produced by the oxygen production equipment, nitrogen-rich gas with the temperature lower than the normal temperature can be continuously discharged from a nitrogen outlet. The nitrogen-rich gas flowing through the second exhaust channel exchanges heat with the exhaust assembly, heat of the outer wall of the exhaust assembly is taken away more efficiently, and therefore the temperature of the outer wall of the exhaust assembly is reduced, and the cooling effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle. BACKGROUND

[0002] In a vehicle, an exhaust assembly is a component for discharging high-temperature and gas generated by engine combustion to outside of the vehicle.

[0003] When the exhaust assembly discharges heat, the exhaust assembly is affected by thermal energy radiation, causing the temperature of the exhaust assembly to rise. In the related art, the exhaust assembly is cooled by natural air cooling. However, this cooling method has poor cooling effect.

[0004] Therefore, the exhaust assembly in the related art has the problem of poor cooling effect. SUMMARY

[0005] To solve the above technical problem, the present application provides a vehicle. At least to solve the problem of poor cooling effect of the exhaust assembly.

[0006] The present application provides a vehicle. The vehicle comprises an oxygen generating device, an exhaust assembly of an engine, and an enclosure assembly. The oxygen generating device comprises an oxygen-rich gas outlet and a nitrogen-rich gas outlet. The exhaust assembly is configured to discharge gas generated by the engine. The enclosure assembly encloses at least part of the exhaust assembly in the circumferential direction to form a second exhaust passage between the enclosure assembly and the exhaust assembly. The second exhaust passage is in communication with the nitrogen-rich gas outlet.

[0007] The exhaust assembly discharges high-temperature engine gas, wherein the exhaust assembly is a high-temperature heat source. While generating oxygen, the oxygen generating device continuously discharges nitrogen-rich gas with a temperature lower than normal temperature and a stable flow rate from the nitrogen gas outlet. The nitrogen-rich gas flowing through the second exhaust passage forms a continuous and flowing gas insulation layer on the outer wall of the exhaust assembly. At the same time, the nitrogen-rich gas exchanges heat with the exhaust assembly, more efficiently taking away the heat of the outer wall of the exhaust assembly, thereby reducing the temperature of the outer wall and improving the cooling effect.

[0008] In a possible implementation, the enclosure assembly extends along the axial direction of the exhaust assembly.

[0009] In a possible implementation, along the axial direction of the exhaust assembly, the exhaust assembly comprises a catalyst, a muffler, and an exhaust pipe connected between the catalyst and the muffler. The second exhaust passage comprises at least one of a first sub-exhaust passage, a second sub-exhaust passage, and a third sub-exhaust passage. The first sub-exhaust passage is enclosed by the enclosure assembly and the catalyst, the second sub-exhaust passage is enclosed by the enclosure assembly and the exhaust pipe, and the third sub-exhaust passage is enclosed by the enclosure assembly and the muffler.

[0010] In one possible implementation, the vehicle further includes a lower body structure. An exhaust assembly is located below and spaced apart from the lower body structure. At least a portion of the enclosure assembly is located between the lower body structure and the exhaust assembly.

[0011] In one possible implementation, the enclosure component is arranged around the periphery of the exhaust component at least once.

[0012] In one possible implementation, the vehicle also includes a fastener that connects the enclosure assembly to the underbody structure.

[0013] In one possible implementation, the vehicle also includes a connector located within the second exhaust passage and connecting the enclosure assembly and the exhaust assembly.

[0014] In one possible implementation, there are multiple connectors. These connectors are spaced apart along the inner wall of the enclosure assembly.

[0015] In one possible implementation, the enclosure assembly is provided with an air intake port that communicates with a second exhaust passage. The vehicle also includes an adapter, one end of which is connected to a nitrogen-rich gas outlet via a pipe, and the other end is connected to the air intake port; the adapter is detachably connected to the enclosure assembly.

[0016] In one possible implementation, the spacing direction between the exhaust assembly and the lower body structure is a first direction, and the extension direction of the adapter intersects with the first direction. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an exhaust assembly provided in an embodiment of this application; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a partial structural schematic diagram of a vehicle according to an embodiment of this application; Figure 5 for Figure 2Schematic diagram of the structure at point BB; Figure 6 for Figure 2 A schematic diagram of the structure at point CC.

[0020] Explanation of reference numerals in the attached figures: 1. Oxygen generating equipment; 11. Oxygen-enriched gas outlet; 12. Nitrogen-enriched gas outlet; 2. Exhaust assembly; 21. First exhaust passage; 22. Catalyst; 23. Exhaust pipe; 24. Muffler; 3. Enclosure assembly; 31. Second exhaust passage; 311. First sub-exhaust passage; 312. Second sub-exhaust passage; 313. Third sub-exhaust passage; 32. Air inlet; 4. Lower body structure; 5. Fixing parts; 6. Connecting parts; 7. Adapter parts. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0027] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0028] The present application will now be described in detail. Before describing the embodiments of the present application, the logic behind the technical problem arising from the present application will be explained first.

[0029] During engine operation, the fuel-air mixture is ignited and undergoes vigorous combustion, converting the chemical energy of the fuel into heat energy. The high-temperature gases produced by combustion are mainly composed of CO2, H2O, and N2. These high-temperature gases are discharged into the atmosphere through the exhaust system. As they pass through the exhaust system, they radiate heat to it, causing heat damage. To reduce the impact of heat damage, natural air cooling is used. However, during continuous engine operation, heat is continuously generated, resulting in poor cooling performance.

[0030] The embodiments of this application are described below.

[0031] See Figure 1 and Figure 2 As shown. This application provides a vehicle.

[0032] The vehicle in this application embodiment can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Furthermore, the power source of the vehicle in this application embodiment is at least one type of fossil fuel. For example, the vehicle in this application embodiment can be a gasoline vehicle, a combustible gas vehicle, a hybrid vehicle using both electricity and gasoline, or a hybrid electric vehicle using both electricity and combustible gas.

[0033] This application provides a vehicle. The vehicle includes: an oxygen generating device 1, an engine exhaust assembly 2, and an enclosure assembly 3.

[0034] Oxygen generating equipment 1 refers to a device that separates and enriches oxygen from the air through physical or chemical methods, while simultaneously producing nitrogen-rich gas. In vehicles, oxygen generating equipment 1 can be a molecular sieve oxygen generator employing pressure swing adsorption technology.

[0035] When the oxygen generator 1 is running, it draws in air from the ambient air, filters and compresses it, and then uses the high adsorption capacity of molecular sieves for nitrogen to adsorb nitrogen during pressurization, thereby producing oxygen-enriched air. During depressurization, the adsorbed nitrogen is desorbed and discharged. Therefore, the oxygen generator 1 includes an oxygen-enriched gas outlet 11 and a nitrogen-enriched gas outlet 12.

[0036] Oxygen-enriched gas outlet 11 is connected to the vehicle's interior space and is used to discharge oxygen-enriched gas into the vehicle's interior. Nitrogen-enriched gas outlet 12 is connected to the vehicle's exterior space and is used to discharge nitrogen-enriched gas outside the vehicle. Oxygen-enriched gas refers to exhaust gas with the highest oxygen content. Nitrogen-enriched gas refers to exhaust gas with the highest nitrogen content.

[0037] For example, the connection between the oxygen generator 1 and the vehicle includes, but is not limited to, fixing it to a special bracket on the vehicle floor or trunk with bolts, connecting the power supply harness to the vehicle's electrical system, and connecting the air intake to clean air outside the vehicle through a pipe.

[0038] Combination Figure 1 , Figure 2 and Figure 3 As shown, the exhaust assembly 2 of the engine forms a first exhaust passage 21 for discharging the gases produced by the engine. The exhaust assembly 2 refers to a series of pipes and devices in the vehicle's power system used to collect, guide, purify, and ultimately safely discharge the gases produced by combustion in the engine cylinders into the atmosphere. Its main functions include not only discharging gases but also reducing exhaust noise and purifying harmful substances.

[0039] For example, the exhaust assembly 2 may be made of high-temperature resistant stainless steel, such as 409, 439 or 304 stainless steel, to withstand long-term high-temperature oxidation and thermal fatigue.

[0040] The cavity inside the exhaust assembly 2 forms the first exhaust passage 21. When the gas flows in the first exhaust passage 21 after combustion, heat is continuously transferred to the passage wall through heat conduction and heat radiation, causing the wall temperature to rise.

[0041] For example, the cross-sectional shape of the first exhaust channel 21 includes, but is not limited to, a circle or an ellipse. A circular cross-section facilitates gas flow, while an elliptical cross-section helps to reduce the overall height and save space.

[0042] The enclosure component 3 encloses at least a portion of the exhaust component 2 in the circumferential direction to form a second exhaust passage 31 between the enclosure component 3 and the exhaust component 2.

[0043] The enclosure component 3 is a shell or sheath structure used to enclose or partially surround the exterior of the exhaust component 2 to form an annular or semi-annular interlayer space between the two. Its main function is to define and form the second exhaust passage 31.

[0044] For example, the materials of the enclosure component 3 include, but are not limited to, aluminum plates, galvanized steel plates, or composite materials with aluminum foil lining. The enclosure component 3 may also adopt a double-layer plate structure with heat-insulating and sound-absorbing cotton on the inner wall to further enhance the heat insulation and noise reduction effect.

[0045] The second exhaust passage 31 is connected to the nitrogen-rich gas outlet 12.

[0046] The second exhaust channel 31 refers to the channel formed by the inner wall of the enclosure component 3 and the outer wall of the exhaust component 2, used to guide the nitrogen-rich gas of the oxygen generating device 1. The low-temperature nitrogen-rich gas flowing into this channel serves as a cooling medium, and the heat from the outer wall of the first exhaust channel 21 is dissipated through the heat exchanger.

[0047] In summary, exhaust assembly 2 discharges high-temperature engine gases, with the first exhaust passage 21 serving as the high-temperature heat source. Meanwhile, oxygen generator 1, while producing oxygen, continuously discharges nitrogen-rich gas at a temperature close to or below room temperature with a stable flow rate from the nitrogen outlet. The nitrogen-rich gas flowing through the second exhaust passage 31 forms a continuous, flowing gas insulation layer on the outer wall of exhaust assembly 2. Simultaneously, the nitrogen-rich gas exchanges heat with exhaust assembly 2, more efficiently removing heat from the outer wall of exhaust assembly 2, thereby reducing its outer wall temperature and improving the cooling effect.

[0048] This improves heat dissipation, removes heat from the vehicle, reduces the overall vehicle cooling requirements, and allows the engine to take in more air, increasing engine power.

[0049] Secondly, the kinetic energy and low-temperature characteristics of the byproduct (nitrogen-rich gas) of the oxygen generator are effectively utilized, transforming the originally useless nitrogen-rich gas into a valuable thermal management medium, thereby improving the energy utilization efficiency of the entire vehicle system.

[0050] Meanwhile, nitrogen is an inert gas, and nitrogen-rich gas as a whole exhibits the characteristics of an inert gas (slowing down combustion and slowing down oxidation), thereby protecting the exhaust component 2 and reducing corrosion and rust problems caused by large temperature differences in the exhaust component 2.

[0051] In addition, this application utilizes the low-temperature characteristics of nitrogen-rich gas and has the following features: reducing the risk of thermal damage to the whole vehicle, eliminating the need for additional thermal protection components, thereby reducing the number of thermal protection components in the whole vehicle, reducing the distance between the exhaust assembly 2 and surrounding components, thereby increasing the space of the whole vehicle and reducing the cost of the whole vehicle.

[0052] Combination Figure 1 ,Figure 2 and Figure 3 As shown. In one possible implementation, the enclosure component 3 extends along the axial direction of the exhaust component 2.

[0053] The fact that the enclosure component 3 extends along the axial direction of the exhaust component 2 means that the coverage of the enclosure component 3 is spread along the length of the exhaust system, rather than being localized or point-like.

[0054] The engine exhaust assembly 2, from the engine interface to the tail outlet, is entirely at a high temperature and requires heat dissipation. The axially extending enclosure assembly 3 ensures that the outer wall of the exhaust assembly 2 is covered by flowing nitrogen-rich gas along the entire path from the high-temperature end to the low-temperature end, achieving continuity and uniformity of cooling and avoiding the formation of localized hot spots.

[0055] Axial extension provides a clear dominant direction and low-resistance path for gas flow within the second exhaust channel 31, which facilitates a smooth flow of gas from the inlet to the outlet, reduces flow dead zones and eddies, thereby improving the utilization efficiency of the cooling medium and the stability of the overall cooling effect.

[0056] Combination Figure 1 , Figure 2 and Figure 3 As shown. In one possible implementation, the enclosure component 3 can be a modular structure. For example, separate enclosure components 3 can be provided for only a few specific high-temperature components (such as the catalytic converter 22 and the front exhaust pipe) on the exhaust assembly 2.

[0057] See diagram for reference. Figure 1 , Figure 2 , Figure 3 and combined Figure 4 , Figure 5 and Figure 6 As shown. In one possible embodiment, along the axial direction of the exhaust assembly 2, the exhaust assembly 2 includes a catalytic converter 22, a muffler 24, and an exhaust pipe 23 connecting the catalytic converter 22 and the muffler 24. The second exhaust passage 31 includes at least one of a first sub-exhaust passage 311, a second sub-exhaust passage 312, and a third sub-exhaust passage 313. The first sub-exhaust passage 311 is enclosed by the enclosure assembly 3 and the catalytic converter 22, the second sub-exhaust passage 312 is enclosed by the enclosure assembly 3 and the exhaust pipe 23, and the third sub-exhaust passage 313 is enclosed by the enclosure assembly 3 and the muffler 24.

[0058] Catalyst 22 is a purification device in the engine exhaust assembly 2, specifically a three-way catalytic converter. Its internal carrier is coated with precious metal catalysts such as platinum, rhodium, and palladium. When high-temperature engine gases pass through, they can convert harmful carbon monoxide, hydrocarbons, and nitrogen oxides into carbon dioxide, water, and nitrogen.

[0059] The muffler 24 is a device in the engine exhaust assembly 2 used to attenuate exhaust noise. It includes multiple baffles, chambers, and perforated pipes, utilizing the reflection, interference, and absorption of sound waves to dissipate sound energy, thereby reducing exhaust noise. Due to its complex internal structure, large volume, and large outer surface area, it is also an important heat radiation surface and noise source in the exhaust system.

[0060] Exhaust pipe 23 is a straight or curved section in the engine exhaust assembly 2 that connects the catalytic converter 22 and the muffler 24. Its main function is to guide the flow of exhaust gas. For example, exhaust pipe 23 includes a front exhaust pipe and a rear exhaust pipe.

[0061] See Figure 4 , Figure 5 and Figure 6 As shown. The first sub-exhaust passage 311 is enclosed by the enclosure assembly 3 and the catalytic converter 22, the second sub-exhaust passage 312 is enclosed by the enclosure assembly 3 and the exhaust pipe 23, and the third sub-exhaust passage 313 is enclosed by the enclosure assembly 3 and the muffler 24. The second exhaust passage 31 includes at least one of the first sub-exhaust passage 311, the second sub-exhaust passage 312, and the third sub-exhaust passage 313.

[0062] For example, the enclosure component 3 only encloses the catalyst 22, and the second exhaust passage 31 only includes the first sub-exhaust passage 311. The outer shell of the catalyst 22 can be irregularly shaped, and the enclosure component 3 is adapted to fit the outer shell of the catalyst 22, with the spacing between the enclosure component 3 and the outer shell of the catalyst 22 being equal. For example, the spacing between the enclosure component 3 and the outer shell of the catalyst 22 can be irregular, and in areas with higher heat relative to the outer shell of the catalyst 22, it can be designed to be relatively narrow to increase the flow rate of nitrogen-rich gas in these areas, enhance the impact cooling intensity on the core high-temperature region, and thus increase heat exchange.

[0063] For example, the enclosure component 3 only encloses the exhaust pipe 23, and the second exhaust passage 31 only includes the second sub-exhaust passage 312. Specifically, the enclosure component 3 and the exhaust pipe 23 form a pipe-in-pipe or "sleeve" structure so that the second sub-exhaust passage 312 can present an annular or quasi-annular channel.

[0064] For example, the enclosure component 3 may also only enclose the outside of the muffler 24. The muffler 24 has a columnar structure, and the enclosure component 3 may be arranged around the muffler 24, or the enclosure component 3 may be integrated with part of the wall of the muffler 24 to form a third sub-exhaust passage 313.

[0065] For example, the enclosure assembly 3 can simultaneously enclose the catalytic converter 22 and the exhaust pipe 23, in which case the first sub-exhaust passage 311 and the second sub-exhaust passage 312 are connected. The enclosure assembly 3 can simultaneously enclose the exhaust pipe 23 and the muffler 24, in which case the second sub-exhaust passage 312 and the third sub-exhaust passage 313 are connected. The enclosure assembly 3 can simultaneously enclose the catalytic converter 22, the exhaust pipe 23, and the muffler 24, in which case the first sub-exhaust passage 311, the second sub-exhaust passage 312, and the third exhaust passage are connected sequentially.

[0066] For example, the enclosure component 3 can also enclose the catalyst 22 and the muffler 24 respectively, in which case the first sub-exhaust passage 311 and the third sub-exhaust passage 313 independently emit nitrogen-rich gas.

[0067] In one possible implementation, the enclosure component 3 can begin to enclose from any position of the exhaust component 2 and end to enclose from any position downstream, along the flow direction of the nitrogen-rich gas.

[0068] For example, the enclosure component 3 may enclose part of the catalyst 22 and part of the exhaust pipe 23.

[0069] The catalytic converter 22 is a component with extremely high operating temperature, the muffler 24 is large in size and has a large surface area, and the exhaust pipe 23 is a long pipe connecting the two. Their thermal management requirements have different focuses.

[0070] In this way, the enclosure component 3 can accommodate the differences in geometry, size, heat output, and surface characteristics of different functional components of the exhaust component 2, thereby achieving more precise and efficient zoned thermal management and improving adaptability.

[0071] See also Figure 1 , Figure 2 and Figure 3 As shown. In one possible embodiment, the vehicle further includes a lower body structure 4. The exhaust assembly 2 is located below the lower body structure 4 and spaced apart from it. At least a portion of the enclosure assembly 3 is located between the lower body structure 4 and the exhaust assembly 2.

[0072] The lower body structure 4 refers to the main load-bearing and sealing structure that forms the bottom of the vehicle's passenger compartment, and is part of the vehicle body. The lower body structure 4 includes the floor panel, floor longitudinal beams, cross beams, and related reinforcements, which together form a whole to support passengers and cargo, and to isolate road noise and heat.

[0073] The enclosure component 3 isolates the vehicle floor, which is directly exposed to the heat radiation from the exhaust component 2, from the low-temperature nitrogen-rich gas layer flowing inside the enclosure component 3, thereby reducing the heat radiation downward to the vehicle body structure 4, thus lowering the temperature of the floor area and extending the service life of interior materials such as carpets and sound insulation pads.

[0074] In addition, by using the enclosure component 3, the exhaust component 2 can be positioned closer to the lower body structure 4, thereby reducing the space occupied under the vehicle and increasing the ground clearance.

[0075] The enclosure component 3 at least partially refers to the fact that the enclosure component 3 may include a portion not located between the lower body structure 4 and the exhaust assembly 2.

[0076] In one possible implementation, the enclosure component 3 is arranged around the circumference of the exhaust component 2 at least once.

[0077] The exhaust assembly 2 is a near-cylindrical heat source, and its heat radiation radiates outwards.

[0078] The enclosing component 3 is arranged around the exhaust component 2 at least once, forming a closed or nearly closed sleeve. First, the flowing nitrogen-rich gas can wrap around the entire circumference of the outer wall of the exhaust component 2, uniformly carrying away heat from all directions, making the temperature field distribution of the exhaust component 2 more balanced, thus achieving uniform cooling and heat insulation effects in the circumferential direction.

[0079] Secondly, when the exhaust assembly 2 is arranged, there may be flammable components around it, such as fuel lines, hydraulic brake lines, tires, etc. The enclosure assembly 3 can provide effective isolation and expand the protection range of the system.

[0080] Meanwhile, a complete annular structure typically exhibits better structural integrity and stiffness, enabling it to more effectively resist deformation and vibration. The annular channel also facilitates a more stable and orderly gas flow.

[0081] For example, the enclosure component 3 may be arranged around the exhaust component 2 in one, two, or more turns.

[0082] For example, the enclosure component 3 is arranged in a spiral shape around the exhaust component 2. The enclosure component 3 may also be multi-layered annular.

[0083] In one possible implementation, the vehicle also includes a fastener 5 that connects the enclosure assembly 3 to the undercarriage structure 4.

[0084] The fastener 5 is used to mechanically connect and secure the enclosure assembly 3 to the lower body structure 4. The fastener 5 bears the weight and inertial force of the enclosure assembly 3, ensuring its stable position under various operating conditions of the vehicle.

[0085] For example, the shape of the fastener 5 can be an L-shaped bracket, a Z-shaped bracket, or a simple mounting ear.

[0086] For example, the material of fastener 5 may include, but is not limited to, steel or aluminum alloy, and it must have sufficient structural strength.

[0087] For example, the connection methods between the fastener 5 and the lower body structure 4 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, latching connection, magnetic connection, adhesive bonding, welding, and integral molding. For example, the connection methods between the fastener 5 and the enclosure assembly 3 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, latching connection, magnetic connection, adhesive bonding, welding, and integral molding.

[0088] See Figure 4 As shown, in one possible implementation, the edge of the enclosure component 3 can be folded outward to form a fixing part, which is connected to the lower body structure 4.

[0089] In one possible implementation, the enclosure component 3 is not directly fixed to the lower body structure 4, but is fixed by a separate hanger system with shock-absorbing elements.

[0090] See also Figure 1 and Figure 3 As shown. In one possible implementation, the vehicle also includes a connector 6 located within the second exhaust passage 31 and connecting the enclosure assembly 3 and the exhaust assembly 2.

[0091] The connector 6 is located inside the second exhaust passage 31 and is a fixing element used to connect the inner wall of the enclosure assembly 3 and the outer wall of the engine exhaust assembly 2.

[0092] The connector 6 also has a supporting function, which is used to maintain the radial distance between the enclosure assembly 3 and the exhaust assembly 2, and to prevent the enclosure assembly 3 from deforming or displacing under internal airflow or external impact, thereby ensuring the stability of the geometry of the second exhaust channel 31.

[0093] For example, the shape of connector 6 may be a streamlined strut, fin, or link with heat dissipation fins to reduce obstruction to airflow.

[0094] For example, the material of connector 6 is a high-temperature resistant metal, such as stainless steel.

[0095] For example, the connection methods between the connector 6 and the enclosure assembly 3 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, locking connection, magnetic connection, adhesive bonding, welding, and integral molding. For example, the connection methods between the connector 6 and the exhaust assembly 2 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, locking connection, magnetic connection, adhesive bonding, welding, and integral molding.

[0096] For example, the connector 6 may extend along the extension direction of the second exhaust passage 31 and have the same length as the second exhaust passage 31.

[0097] In one possible implementation, there are multiple connectors 6. The multiple connectors 6 are distributed at intervals along the inner wall of the enclosure component 3.

[0098] Thus, by setting multiple connectors 6, the long-span single-point or few-point support is transformed into a near-continuous distributed multi-point support system. This improves the local stiffness of the entire enclosure component 3 and exhaust component 2, enhancing the overall shape retention capability. The multiple connectors working together can effectively resist and disperse external loads that cause deformation (such as gravity, inertial forces, and airflow pressure), and decompose large-amplitude low-frequency vibration modes into multiple small-amplitude high-order modes, improving the dynamic stability of the structure.

[0099] For example, the number of connectors 6 can be set to 2, 3, 4, 5, 6 or more.

[0100] For example, multiple connectors 6 are spaced apart circumferentially along the exhaust assembly 2. Multiple connectors 6 may also be spaced apart axially along the exhaust assembly 2. Multiple connectors 6 may also be spaced apart in a spiral pattern. Multiple connectors 6 may also be spaced apart arbitrarily in an irregular pattern.

[0101] See also Figure 4 , Figure 5 and Figure 6 As shown. In one possible implementation, the enclosure component 3 is provided with an air inlet 32, which communicates with the second exhaust channel 31.

[0102] The air inlet 32 ​​is an opening on the wall of the enclosure component 3, which is used to introduce nitrogen-rich gas from the future self-made oxygen device 1 into the starting end of the second exhaust channel 31.

[0103] For example, the air inlet 32 ​​can be a circular hole located at the front end of the enclosure component 3.

[0104] The vehicle also includes an adapter 7, one end of which is connected to the nitrogen-rich gas outlet 12 via a pipeline, and the other end is connected to the air inlet 32. The adapter 7 is detachably connected to the enclosure assembly 3.

[0105] Adapter 7 refers to the transition connection component used to connect flexible or rigid pipelines to the air inlet 32 ​​on the enclosure assembly 3. Adapter 7 realizes a detachable air passage interface.

[0106] For example, the adapter 7 may be a straight connector, a 90-degree elbow, or an elbow of other angles. For example, the material of the adapter 7 may include, but is not limited to, brass, stainless steel, or high-temperature resistant plastic.

[0107] For example, the connection methods between the adapter 7 and the enclosure component 3 include, but are not limited to, bolt connection, snap-fit, plug-in connection, locking connection, magnetic connection, or quick-connect connector connection. A rubber or silicone sealing ring may be provided at the interface to ensure airtightness.

[0108] The adapter 7 is detachably connected to the enclosure assembly 3. Before connection, it facilitates the independent installation, testing, and maintenance of the oxygen generator 1 and the exhaust assembly 2.

[0109] In one possible implementation, the spacing direction between the exhaust assembly 2 and the lower body structure 4 is a first direction ( Figure 1 (Central direction X), the extension direction of adapter 7 intersects with the first direction.

[0110] For example, the first direction is the height direction of the vehicle. The extension direction of the adapter 7 can be the width direction of the vehicle.

[0111] The extension direction of the adapter 7 intersects with the first direction. By setting the air intake 32 in a horizontal or steeply inclined direction, the adapter 7 and its connected piping can make full use of the gap on the side of the exhaust assembly 2 for wiring. This reduces the space occupied by the adapter 7.

[0112] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle, characterized in that, include: Oxygen generating equipment (1); including an oxygen-enriched gas outlet (11) and a nitrogen-enriched gas outlet (12); The exhaust assembly (2) of the engine is used to exhaust the gas produced by the engine; Enclosing component (3) encloses at least a portion of the circumferential portion of the exhaust component (2) to form a second exhaust passage (31) between the enclosing component (3) and the exhaust component (2); the second exhaust passage (31) communicates with the nitrogen-rich gas outlet (12).

2. The vehicle according to claim 1, characterized in that, The enclosure component (3) extends along the axial direction of the exhaust component (2).

3. The vehicle according to claim 2, characterized in that, Along the axial direction of the exhaust assembly (2), the exhaust assembly (2) includes a catalyst (22), a muffler (24), and an exhaust pipe (23) connecting the catalyst (22) and the muffler (24). The second exhaust passage (31) includes at least one of a first sub-exhaust passage (311), a second sub-exhaust passage (312), and a third sub-exhaust passage (313); the first sub-exhaust passage (311) is enclosed by the enclosure assembly (3) and the catalyst (22), the second sub-exhaust passage (312) is enclosed by the enclosure assembly (3) and the exhaust pipe (23), and the third sub-exhaust passage (313) is enclosed by the enclosure assembly (3) and the muffler (24).

4. The vehicle according to claim 1, characterized in that, The vehicle also includes a lower body structure (4). The exhaust assembly (2) is located below the lower body structure (4) and is spaced apart from the lower body structure (4); at least a portion of the enclosure assembly (3) is located between the lower body structure (4) and the exhaust assembly (2).

5. The vehicle according to claim 4, characterized in that, The enclosure component (3) is arranged around the circumference of the exhaust component (2) at least once.

6. The vehicle according to claim 4, characterized in that, The vehicle also includes a fastener (5) that connects the enclosure assembly (3) to the lower body structure (4).

7. The vehicle according to claim 1, characterized in that, The vehicle also includes a connector (6) located within the second exhaust passage (31) and connecting the enclosure assembly (3) and the exhaust assembly (2).

8. The vehicle according to claim 7, characterized in that, The number of the connectors (6) is multiple; the multiple connectors (6) are distributed at intervals along the inner wall of the enclosure component (3).

9. The vehicle according to claim 4, characterized in that, The enclosure component (3) is provided with an air intake (32), which is connected to the second exhaust channel (31); the vehicle also includes: The adapter (7) has one end connected to the nitrogen-rich gas outlet (12) via a pipeline and the other end connected to the air inlet (32). The adapter (7) is detachably connected to the enclosure assembly (3).

10. The vehicle according to claim 9, characterized in that, The distance between the exhaust assembly (2) and the lower body structure (4) is the first direction, and the extension direction of the adapter (7) intersects the first direction.

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