Vehicle

Abstract

This disclosure provides a vehicle. The vehicle includes a body and an on-board oxygen generation system. The body has longitudinal beams, which have cavities and through holes for connecting the cavities to the external environment. The on-board oxygen generation system includes an oxygen generating device and an exhaust pipe. The intake end of the exhaust pipe is connected to the oxygen generating device, and the exhaust end of the exhaust pipe is connected to the cavity. By using this disclosure, the exhaust end of the exhaust pipe used to discharge nitrogen is connected to the existing cavity of the longitudinal beam. Foreign objects such as sand and gravel need to first enter the cavity of the longitudinal beam through the through hole before they can enter the exhaust pipe through the exhaust end. This makes the path of foreign objects such as sand and gravel to the exhaust end more complicated, thus increasing the difficulty for them to reach the exhaust end and improving the situation where nitrogen discharge from the exhaust pipe is not smooth in a short time.

Description

Technical Field

[0001] This disclosure pertains to the field of vehicle technology, and particularly relates to a vehicle. Background Technology

[0002] When driving on high-altitude areas, the oxygen concentration is low, so an onboard oxygen generation system is needed to provide high concentrations of oxygen for the occupants.

[0003] Typically, in-vehicle oxygen generation systems produce high-concentration oxygen from the air while simultaneously generating high-concentration nitrogen, which needs to be vented outside the vehicle through the exhaust pipe. The exhaust end of the exhaust pipe is usually exposed outside the vehicle.

[0004] However, with the exhaust end exposed outside the vehicle, foreign objects such as sand and gravel can easily enter the exhaust pipe and accumulate, which may cause the nitrogen to be unable to be discharged smoothly from the exhaust pipe in a short period of time. Summary of the Invention

[0005] This disclosure provides a vehicle that can solve the technical problems existing in related technologies. The technical solution is as follows: This disclosure provides a vehicle, which includes a vehicle body and an on-board oxygen generation system; The body has a longitudinal beam, the longitudinal beam has a cavity and a through hole, and the through hole is used to connect the cavity with the external environment; The vehicle-mounted oxygen generation system includes an oxygen generating device and an exhaust pipe. The air inlet of the exhaust pipe is connected to the oxygen generating device, and the air outlet of the exhaust pipe is connected to the cavity.

[0006] In some possible implementations, the exhaust end is offset from the through hole.

[0007] In some possible implementations, a predetermined angle is formed between the opening orientation of the exhaust end and the opening orientation of the through hole.

[0008] In some possible implementations, the preset included angle is 90°.

[0009] In some possible implementations, the exhaust pipe has a first pipe section, a second pipe section, and a third pipe section connected in sequence; The first pipe section has the air inlet end; The third pipe section has the exhaust end and is arranged outside the body; At least a portion of the second pipe segment is located above the third pipe segment.

[0010] In some possible implementations, the second pipe segment is arranged inside the body.

[0011] In some possible implementations, at least a portion of the second pipe section is at a height higher than the vehicle's preset maximum wading depth.

[0012] In some possible implementations, the vehicle-mounted oxygen generation system further includes a muffler; The air intake end is connected to the oxygen generating device through the muffler.

[0013] In some possible implementations, both the silencer and the first pipe section are arranged outside the body.

[0014] In some possible implementations, the oxygen generating device is arranged inside the body.

[0015] The technical solution provided in this disclosure includes at least the following beneficial effects: The vehicle disclosed herein connects the exhaust end of the exhaust pipe used to discharge nitrogen to the existing cavity of the longitudinal beam. Nitrogen is first discharged from the exhaust pipe into the existing cavity of the longitudinal beam, and then discharged to the external environment through the existing through hole of the longitudinal beam. This arrangement ensures that nitrogen is discharged smoothly outside the vehicle. At the same time, foreign objects such as sand and gravel need to enter the cavity of the longitudinal beam through the through hole before they can enter the exhaust pipe through the exhaust end. This makes the path of foreign objects such as sand and gravel to the exhaust end more complicated, thus increasing the difficulty for them to reach the exhaust end. This improves the situation where nitrogen discharge from the exhaust pipe is not smooth in a short time.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings: Figure 1 This is a schematic diagram of a vehicle provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of an on-board oxygen generation system provided in an embodiment of this disclosure.

[0018] Legend 1. Vehicles; 11. Body; 111. Longitudinal beam; 1111. Cavity; 1112. Through hole; 13. On-board oxygen generation system; 131. Oxygen generator; 1311. Main unit; 1312. Four-way valve; 1313. Molecular sieve cylinder; 1313a. First sieve cylinder; 1313b. Second sieve cylinder; 1314. Oxygen storage tank; 132. Exhaust pipe; 132a. Inlet end; 132b. Exhaust end; 1321. First pipe section; 1322. Second pipe section; 1323. Third pipe section; 133. Silencer.

[0019] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] With the continuous improvement of transportation infrastructure in my country's plateau regions and the steady increase in car ownership, self-driving travel has become one of the mainstream modes of transportation for plateau tourism, outdoor work, and long-distance commuting. The Qinghai-Tibet Plateau and Yunnan-Guizhou Plateau in my country are generally located at high altitudes. Due to the influence of the high-altitude environment, atmospheric pressure decreases, and the partial pressure of oxygen in the air drops significantly. Prolonged exposure to a low-oxygen environment can easily lead to altitude sickness symptoms such as headaches, fatigue, chest tightness, and decreased concentration, directly threatening the health of drivers and passengers and driving safety. Driven by this demand, in-vehicle oxygen generation systems, with their advantage of providing high-concentration oxygen to drivers and passengers in real time and continuously, are gradually becoming an important supporting equipment for vehicles traveling in plateau regions.

[0023] Most current in-vehicle oxygen generation systems employ air separation technology. Among them, systems using PSA (Pressure Swing Adsorption) technology are becoming increasingly widely used due to their compact structure, continuous oxygen production, and compatibility with vehicle power supplies. The core principle of PSA is to use molecular sieves as the adsorption medium. Utilizing the differences in adsorption rates and capacities between nitrogen and oxygen within the pores of the molecular sieves, a cycle of pressure adsorption and depressurization desorption is used to separate and purify oxygen from the air, which is then delivered to an oxygen storage tank. Simultaneously, the high-concentration nitrogen adsorbed by the molecular sieves is discharged as exhaust gas through the exhaust pipe. The exhaust end of the exhaust pipe is typically exposed on the exterior of the vehicle, such as under the chassis.

[0024] However, in real-world driving scenarios, having the exhaust outlet exposed on the vehicle's exterior presents significant drawbacks. Specifically, in some high-altitude areas where sandstorms are frequent, the air may carry a large amount of sand and gravel. During vehicle operation, this sand and gravel can easily enter the exhaust pipe through the exposed exhaust outlet. In addition, mud and debris kicked up by the vehicle's wheels during driving can also enter the exhaust pipe through the exhaust outlet. Once these foreign objects enter the exhaust pipe, they may accumulate at bends and other locations, causing a narrowing of the exhaust pipe's diameter and increased exhaust resistance, ultimately leading to exhaust obstruction.

[0025] Understandably, obstructed exhaust pipes can negatively impact the operational stability and lifespan of an onboard oxygen generator system in multiple ways. For example, obstructed exhaust pipes prevent nitrogen from escaping, directly leading to incomplete desorption of waste gas within the molecular sieve cylinder. This causes a rapid decline in the effective adsorption capacity of the molecular sieve cylinder, resulting in decreased oxygen concentration and insufficient oxygen supply flow, failing to meet the oxygen needs of passengers in high-altitude environments. Secondly, obstructed exhaust pipes cause a continuous increase in exhaust back pressure, increasing the workload of the onboard oxygen generator system, leading to increased power consumption and operating temperature, potentially shortening its lifespan.

[0026] In related technologies, metal protective nets are usually installed at the exhaust end. However, metal protective nets have significant limitations. For example, if the mesh size of the metal protective net is too large, it cannot block small sand or mud and other debris. If the mesh size of the metal protective net is too small, the metal protective net itself will be easily blocked by sand and dust, which will increase the exhaust resistance of the exhaust pipe.

[0027] This disclosure provides a vehicle 1, with reference to Figure 1 The vehicle 1 includes a body 11 and an on-board oxygen generation system 13. The body 11 has a longitudinal beam 111, which has a cavity 1111 and a through hole 1112 for connecting the cavity 1111 to the external environment. The on-board oxygen generation system 13 includes an oxygen generating device 131 and an exhaust pipe 132. The air inlet 132a of the exhaust pipe 132 is connected to the oxygen generating device 131, and the air outlet 132b of the exhaust pipe 132 is connected to the cavity 1111.

[0028] It is understood that the main body 11 may include the connected chassis and body (not shown in the figure), etc.

[0029] The longitudinal beam 111, located on the outer side of the chassis, is the core load-bearing frame of the chassis, undertaking the core functions of transmitting bending and torsional loads, absorbing collision energy, and serving as the mounting base for chassis components. It is understandable that, under the same weight and cross-sectional area, the material of a hollow cross-section member is mainly concentrated on the outer side of the cross-section, resulting in higher bending strength and torsional stiffness than a solid cross-section member. Therefore, under the same cross-sectional area and equal bending strength, the weight of a hollow cross-section member is lower than that of a solid cross-section member. Based on this, the longitudinal beam 111 has a cavity 1111, which reduces the weight of the longitudinal beam 111 while meeting the chassis rigidity requirements, thereby reducing the weight of vehicle 1 and improving its range. Furthermore, the cavity 1111 in the longitudinal beam 111 allows it to dissipate collision energy through deformation and collapse during a collision, thus reducing the collision energy transmitted to the passenger compartment. In addition, the longitudinal beam 111 has a cavity 1111, which can serve as a channel for laying brake lines, fuel lines, or low-voltage wiring harnesses, etc. This makes full use of the chassis space and provides physical protection for the pipelines, reducing damage caused by flying stones and mud corrosion. The longitudinal beam 111 usually has multiple through holes 1112, such as weight-reduction holes, which can further reduce the weight of the longitudinal beam 111. In other words, the cavities 1111 and through holes 1112 in the longitudinal beam 111 of the body 11 are a conventional structure of the vehicle 1 itself.

[0030] In this embodiment, the exhaust end 132b of the exhaust pipe 132 is connected to the cavity 1111 of the longitudinal beam 111. The nitrogen produced by the oxygen generator 131 flows from the inlet end 132a into the exhaust pipe 132, then through the exhaust end 132b into the cavity 1111 of the longitudinal beam 111, and finally through the through hole 1112 into the external environment. Foreign objects such as sand and gravel need to enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112 first. At the same time, combined with the small diameter of the through hole 1112, most of the possibility of foreign objects such as sand and gravel entering the cavity 1111 of the longitudinal beam 111 is blocked. In other words, only a small amount of foreign objects such as sand and gravel can enter the cavity 1111 of the longitudinal beam 111. It is understandable that among the foreign objects such as sand and gravel that can enter the cavity 1111 of the longitudinal beam 111, there are multiple incident directions during the process of entering the cavity 1111 of the longitudinal beam 111 through the through hole 1112. Only a small portion of the foreign objects can meet the condition of the incident direction that reaches the exhaust end 132b, and the foreign objects with the other incident directions can only remain in the cavity 1111 of the longitudinal beam 111.

[0031] In summary, by adopting the technical solution provided in this embodiment, the exhaust end 132b of the exhaust pipe 132 used for discharging nitrogen is connected to the existing cavity 1111 of the longitudinal beam 111. Nitrogen is first discharged from the exhaust pipe 132 into the existing cavity 1111 of the longitudinal beam 111, and then discharged to the external environment through the existing through hole 1112 of the longitudinal beam 111. This arrangement can ensure that nitrogen is smoothly discharged outside the vehicle. At the same time, foreign objects such as sand and gravel need to enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112 before they can enter the exhaust pipe 132 through the exhaust end 132b. The path of foreign objects to the exhaust end 132b becomes more complicated, which increases the difficulty for foreign objects to reach the exhaust end 132b. This can improve the situation where nitrogen discharge from the exhaust pipe 132 is not smooth in a short time.

[0032] In some possible implementations, refer to Figure 1 The exhaust end 132b can extend into the cavity 1111 of the longitudinal beam 111, and the exhaust end 132b can be detachably connected to the longitudinal beam 111 via a connector (not shown in the figure).

[0033] The connector can be a buckle or a bracket, etc., and is not limited here.

[0034] The exhaust end 132b is connected to the longitudinal beam 111 through a connector, which can ensure the stability of the connection between the exhaust end 132b and the cavity 1111 of the longitudinal beam 111.

[0035] In some possible implementations, the longitudinal beam 111 may extend along a first direction, and the central axis of the through hole 1112 may be parallel to a second direction. The second direction may be perpendicular to the first direction.

[0036] During normal driving of vehicle 1, the first direction can be the driving direction of vehicle 1, and the second direction can be the lateral direction of vehicle 1.

[0037] Of course, the second direction can also be tilted relative to the first direction, that is, the second direction can form an acute angle with the first direction, which is not limited here.

[0038] In some possible implementations, the exhaust end 132b is offset from the through hole 1112.

[0039] For example, in the extending direction of the longitudinal beam 111, the exhaust end 132b and the through hole 1112 can be staggered by a preset distance.

[0040] It is understandable that when only a small amount of foreign objects such as sand and gravel can enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112, since these foreign objects have multiple incident directions during the process of entering the cavity 1111 of the longitudinal beam 111 through the through hole 1112, only a very small amount of foreign objects can meet both the incident direction and the preset distance conditions at the same time to reach the exhaust end 132b.

[0041] Therefore, during vehicle 1's operation, even if foreign objects such as gravel on the road enter the cavity 1111 inside the longitudinal beam 111 through the existing through hole 1112, when the opening of the exhaust end 132b and the opening of the through hole 1112 are offset from each other and not directly opposite, the foreign objects such as gravel need to go through a longer and more complex tortuous path to reach the opening of the exhaust end 132b after entering the cavity 1111 of the longitudinal beam 111 through the through hole 1112. During this process, most of the foreign objects such as gravel will be stuck on the inner wall of the cavity 1111 of the longitudinal beam 111 or in other areas of the cavity 1111, and cannot reach the opening of the exhaust end 132b smoothly. This makes the path of the foreign objects such as gravel to the exhaust end 132b more complicated, which directly increases the difficulty for the foreign objects such as gravel to reach the exhaust end 132b and finally enter the exhaust pipe 132.

[0042] In some possible implementations, a predetermined angle is formed between the opening orientation of the exhaust end 132b and the opening orientation of the through hole 1112.

[0043] The preset angle formed between the opening orientation of the exhaust end 132b and the opening orientation of the through hole 1112 may not be zero. In other words, the orientation of the exhaust end 132b opening will not completely coincide with the orientation of the through hole 1112 opening. The opening of the exhaust end 132b is inclined relative to the opening of the through hole 1112, meaning that the opening of the exhaust end 132b and the opening of the through hole 1112 will not be directly opposite each other.

[0044] With this orientation, even if the opening of the exhaust end 132b is generally arranged in the extension direction of the inlet of the through hole 1112, foreign objects such as sand and gravel will not directly enter the exhaust pipe 132 through the exhaust end 132b after entering the cavity 1111 of the longitudinal beam 111 through the through hole 1112 along the opening orientation of the through hole 1112. Instead, they will come into contact with and collide with the edge of the opening of the exhaust end 132b, and then be bounced to other positions in the cavity 1111. This also increases the difficulty for foreign objects such as sand and gravel to enter the exhaust pipe 132 through the exhaust end 132b.

[0045] In some possible implementations, refer to Figure 1 The preset included angle is 90°.

[0046] In some examples, the longitudinal beam 111 may extend along a first direction, the central axis of the through hole 1112 may be parallel to a second direction, and the opening of the exhaust end 132b may be parallel to a third direction. The second direction is perpendicular to the first direction and also perpendicular to the third direction.

[0047] During normal driving of vehicle 1, the first direction can be the driving direction of vehicle 1, the second direction can be the lateral direction of vehicle 1, and the third direction can be the vertical direction.

[0048] With this configuration, after foreign objects such as sand and gravel enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112, the simplest path is to bend 90° and reach the exhaust end 132b along a third direction. This makes the path of foreign objects to the exhaust end 132b complicated and increases the difficulty of foreign objects reaching the exhaust end 132b.

[0049] In other implementations, the preset angle may be 30° or 60° or other angles, which are not limited here.

[0050] In some possible embodiments, a baffle (not shown in the figure) is also provided in the cavity 1111 of the longitudinal beam 111. In the extending direction of the longitudinal beam 111, the baffle is arranged between the through hole 1112 and the exhaust end 132b, and the baffle forms a semi-barrier dust-blocking structure in the cavity 1111.

[0051] It should be noted that the baffle forms a semi-barrier dust-blocking structure within the cavity 1111. That is, although the baffle is positioned between the through-hole 1112 and the exhaust end 132b, it does not completely isolate the two. This design allows the baffle to effectively block foreign objects such as sand and gravel from entering the cavity 1111 through the through-hole 1112, further complicating the path of these objects to the exhaust end 132b and increasing the difficulty of reaching it. Simultaneously, it ensures that the nitrogen gas discharged from the exhaust end 132b can pass through the baffle and flow to the through-hole 1112, and then from there to the external environment.

[0052] In some possible implementations, a notch (not shown) is formed between a portion of the edge of the baffle and the inner wall of the cavity 1111, so that the exhaust end 132b and the through hole 1112 can communicate through the notch.

[0053] Understandably, when foreign objects such as sand and gravel enter the cavity 1111 through the through hole 1112, they need to pass precisely through the notch to reach the exhaust end 132b. Foreign objects that do not pass precisely through the notch are blocked by the baffle, which further complicates the path of foreign objects such as sand and gravel to the exhaust end 132b, thus further increasing the difficulty for foreign objects such as sand and gravel to reach the exhaust end 132b. At the same time, it can ensure that the nitrogen gas discharged from the exhaust end 132b can flow through the notch to the through hole 1112 and then flow from the through hole 1112 to the external environment.

[0054] In some possible implementations, a notch may be formed in the middle of the baffle so that the exhaust end 132b and the through hole 1112 can communicate through the notch.

[0055] Understandably, when foreign objects such as sand and gravel enter the cavity 1111 through the through hole 1112, they need to pass precisely through the notch to reach the exhaust end 132b. Foreign objects that do not pass precisely through the notch are blocked by the baffle, which further complicates the path of foreign objects such as sand and gravel to the exhaust end 132b, thus further increasing the difficulty for foreign objects such as sand and gravel to reach the exhaust end 132b. At the same time, it can ensure that the nitrogen gas discharged from the exhaust end 132b can flow through the notch to the through hole 1112 and then flow from the through hole 1112 to the external environment.

[0056] In some possible implementations, the number of baffles may be at least two. At least two baffles are arranged between the through hole 1112 and the exhaust end 132b in the extending direction of the longitudinal beam 111. A notch is formed between a portion of the edge of each baffle and the inner wall of the cavity 1111, and at least two notches may be staggered in the extending direction of the longitudinal beam 111.

[0057] Understandably, when foreign objects such as sand and gravel enter the cavity 1111 through the through hole 1112, they need to precisely pass through multiple gaps in sequence to reach the exhaust end 132b. However, since the multiple gaps are staggered in the extension direction of the longitudinal beam 111, the path for the foreign object to pass through multiple gaps at once becomes more tortuous and complex, which further complicates the path for the foreign object to reach the exhaust end 132b, thus further increasing the difficulty for the foreign object to reach the exhaust end 132b.

[0058] In some possible implementations, the notches on two adjacent baffles are staggered in the extension direction of the longitudinal beam 111.

[0059] It is understandable that by staggering the notches on adjacent baffles along the extension direction of the longitudinal beam 111, even if a foreign object such as sand or gravel passes through one notch, it must change its path to pass through the next notch. Therefore, a foreign object would need to change its path multiple times to pass through multiple notches.

[0060] In summary, when foreign objects such as sand and gravel enter the cavity 1111 through the through hole 1112, they need to change their movement path multiple times to accurately pass through multiple gaps before they can reach the exhaust end 132b. This further complicates the path for foreign objects to reach the exhaust end 132b, thus increasing the difficulty for them to reach the exhaust end 132b.

[0061] In some examples, the notches on the sequentially arranged baffles can form a spiral shape.

[0062] When foreign objects such as sand and gravel enter the cavity 1111 through the through hole 1112, they need to form a spiral path to accurately pass through multiple gaps before they can reach the exhaust end 132b. This further complicates the path for foreign objects to reach the exhaust end 132b, thus increasing the difficulty for them to reach the exhaust end 132b.

[0063] In some possible implementations, refer to Figure 1 The exhaust pipe 132 has a first pipe section 1321, a second pipe section 1322, and a third pipe section 1323 connected in sequence. The first pipe section 1321 has an air inlet end 132a; the third pipe section 1323 has an exhaust end 132b and is arranged outside the body 11; at least a portion of the second pipe section 1322 is located above the third pipe section 1323.

[0064] During the process of venting nitrogen, nitrogen enters from the inlet end 132a and flows along the first pipe section 1321, the second pipe section 1322 and the third pipe section 1323, and is discharged from the exhaust end 132b into the cavity 1111 of the longitudinal beam 111, and finally discharged into the external environment through the through hole 1112.

[0065] Understandably, if vehicle 1 is wading through water, the longitudinal beam 111 may be below the water level, and therefore the exhaust end 132b may also be below the water level, posing a risk of backflow into the exhaust end 132b. Based on this, placing at least a portion of the second pipe section 1322 above the third pipe section 1323 increases the difficulty of water flowing back from the third pipe section 1323 to the second pipe section 1322, thus increasing the difficulty of water flowing back through the exhaust pipe 132 to the oxygen generator 131.

[0066] In some possible implementations, the second pipe segment 1322 is arranged inside the body 11.

[0067] The second pipe section 1322 can be arranged on one side of the chassis located in the vehicle 1. That is, the second pipe section 1322 can be arranged inside the vehicle 1. The height difference between at least part of the second pipe section 1322 and the third pipe section 1323 can be increased as much as possible to increase the difficulty of water flowing back from the third pipe section 1323 to the second pipe section 1322.

[0068] In some possible implementations, at least a portion of the second pipe section 1322 is at a height higher than the preset maximum wading height of the vehicle 1.

[0069] Understandably, during the initial design and mass production stages, vehicle 1 already had a clearly defined preset maximum wading height, taking into account its structural design and safe driving requirements. This is the maximum wading depth that vehicle 1 can withstand to maintain normal operation. According to the design standards of vehicle 1, when the actual wading height of vehicle 1 is less than or equal to the preset maximum wading height, all systems of vehicle 1 can maintain normal operation, ensuring normal driving. However, when the actual wading height of vehicle 1 exceeds the preset maximum wading height, vehicle 1 exceeds the original design protection range, which may lead to various system failures, affecting normal driving and driving safety. Therefore, in this embodiment, the height of at least some locations in the second pipe section 1322 is set higher than the preset maximum wading height of vehicle 1. When vehicle 1 is driving normally through water within the design limits, the possibility of water flowing back from the third pipe section 1323 to the second pipe section 1322 can be effectively blocked from the structural layout level.

[0070] In some possible implementations, refer to Figure 1 The vehicle-mounted oxygen generation system 13 also includes a muffler 133. The air intake end 132a is connected to the oxygen generation device 131 through the muffler 133.

[0071] Understandably, the oxygen generator 131 generates noise when sending the byproduct nitrogen to the exhaust pipe 132, which can affect the comfort of the driver and passengers. Therefore, the intake end 132a is connected to the oxygen generator 131 through a muffler 133. The oxygen generator 131 sends nitrogen to the muffler 133 for noise reduction, and then the nitrogen flows to the exhaust pipe 132. This reduces the noise when the oxygen generator 131 sends nitrogen to the exhaust pipe 132, preventing the noise generated when expelling nitrogen from the exhaust pipe from affecting the driver and passengers, and improving their comfort.

[0072] In some possible implementations, refer to Figure 1 The silencer 133 and the first pipe section 1321 are both arranged on the outside of the main body 11.

[0073] By placing the muffler 133 on the outside of the main body 11, or in other words, by placing the muffler 133 on the side of the chassis facing the external environment, that is, by placing the muffler 133 on the outside of the vehicle 1, exhaust noise can be blocked from being transmitted to the passenger compartment, thus improving the quietness of the vehicle interior.

[0074] In some possible implementations, refer to Figure 1 The oxygen generating device 131 is arranged inside the main body 11.

[0075] The oxygen generator 131 is arranged inside the main body 11. In other words, the oxygen generator 131 is arranged on the side of the chassis located inside the vehicle, which means that the oxygen generator 131 is arranged inside the vehicle 1. This can provide a certain degree of protection for the oxygen generator 131, and at the same time make it convenient for drivers and passengers to use and operate the oxygen generator 131.

[0076] For details, please refer to Figure 2 The oxygen generating device 131 may include a main unit 1311, a four-way valve 1312, a molecular sieve cylinder 1313, and an oxygen storage tank 1314. The molecular sieve cylinder 1313 includes a first sieve cylinder 1313a and a second sieve cylinder 1313b. The four-way valve 1312 includes an inlet, a first working port, a second working port, and an exhaust port. The inlet is connected to the main unit 1311, the first working port is connected to the first sieve cylinder 1313a, the second working port is connected to the second sieve cylinder 1313b, the exhaust port is connected to a silencer 133, and the molecular sieve cylinder 1313 is connected to the oxygen storage tank 1314.

[0077] It should be noted that molecular sieves are installed inside both the first sieve cylinder 1313a and the second sieve cylinder 1313b. The sieve pores of the molecular sieves allow oxygen molecules to pass through while adsorbing nitrogen molecules.

[0078] The main unit 1311 pressurizes atmospheric air to its rated working pressure, and after pressure stabilization, continuously outputs it to the inlet of the four-way valve 1312, providing the necessary high-pressure environment for the nitrogen adsorption process within the molecular sieve cylinder 1313. Furthermore, the main unit 1311 first uses air cooling to condense water vapor into liquid water, which is then automatically discharged through a gas-water separator. Micron-sized dust is then filtered out through a precision filter, and finally, clean, dry high-pressure air is delivered to the inlet of the four-way valve 1312. This prevents moisture and dust from entering the first sieve cylinder 1313a and the second sieve cylinder 1313b, thus preventing clogging of the sieve holes and significantly extending the service life and adsorption stability of the molecular sieve cylinder 1313.

[0079] Understandably, the inlet of the four-way valve 1312 is periodically connected to the first working port and the second working port, causing the main unit 1311 to periodically deliver compressed air to the first sieve cylinder 1313a and the second sieve cylinder 1313b, so that the first sieve cylinder 1313a and the second sieve cylinder 1313b periodically generate high-concentration oxygen. At the same time, the outlet of the four-way valve 1312 is also periodically connected to the first working port and the second working port, so that the first sieve cylinder 1313a and the second sieve cylinder 1313b periodically connect to the exhaust pipe 132, so as to periodically discharge nitrogen.

[0080] Specifically, the inlet of the four-way valve 1312 is connected to the first working port, and the outlet is connected to the second working port. The main unit 1311 compresses air and sends it through the inlet to the four-way valve 1312, then through the first working port to the first sieve cylinder 1313a. The molecular sieve in the first sieve cylinder 1313a adsorbs nitrogen molecules from the compressed air while allowing oxygen molecules to pass through, thus producing high-concentration oxygen, which is then delivered to the oxygen storage tank 1314. Simultaneously, because the second working port is connected to the outlet, the outlet is connected to the silencer 133, and the silencer 133 is connected to the exhaust pipe 132, the interior of the second sieve cylinder 1313b is connected to the external environment. This allows the second sieve cylinder 1313b to depressurize, and the nitrogen adsorbed in the second sieve cylinder 1313b flows through the second working port to the four-way valve 1312, then through the outlet to the silencer 133, and finally to the exhaust pipe 132.

[0081] The inlet of the four-way valve 1312 is switched to connect with the second working port, and the outlet is switched to connect with the first working port. The main unit 1311 compresses air and sends it into the four-way valve 1312, then through the second working port to the second sieve cylinder 1313b. The molecular sieve in the second sieve cylinder 1313b adsorbs nitrogen molecules from the compressed air while allowing oxygen molecules to pass through, thus producing high-concentration oxygen, which is then delivered to the oxygen storage tank 1314. Simultaneously, because the first working port is connected to the outlet, the outlet is connected to the silencer 133, and the silencer 133 is connected to the exhaust pipe 132, the interior of the first sieve cylinder 1313a is connected to the external environment. This allows the first sieve cylinder 1313a to depressurize, and the nitrogen adsorbed in the first sieve cylinder 1313a flows through the first working port to the four-way valve 1312, then through the outlet to the silencer 133, and finally to the exhaust pipe 132.

[0082] After entering the exhaust pipe 132, nitrogen flows sequentially through the first pipe section 1321, the second pipe section 1322 and the third pipe section 1323, and flows from the exhaust end 132b to the cavity 1111 of the longitudinal beam 111, and finally is discharged to the external environment through the through hole 1112.

[0083] If vehicle 1 is driving through water, at least part of the second pipe section 1322 is located above the third pipe section 1323, which increases the difficulty of water flowing back from the third pipe section 1323 to the second pipe section 1322, and also increases the difficulty of water flowing back to the oxygen generator 131 through the exhaust pipe 132.

[0084] Foreign objects such as sand and gravel need to enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112. However, due to the small diameter of the through hole 1112, most of the sand and gravel cannot enter the cavity 1111. In other words, only a small portion of the sand and gravel can enter the cavity 1111. It is understandable that among the sand and gravel that can enter the cavity 1111, there are multiple incident directions during their entry through the through hole 1112. Only a small portion of the foreign objects meet the condition of reaching the exhaust end 132b; the remaining foreign objects can only remain inside the cavity 1111.

[0085] In summary, by adopting the technical solution provided in this embodiment, the exhaust end 132b of the exhaust pipe 132 used for discharging nitrogen is connected to the existing cavity 1111 of the longitudinal beam 111. Nitrogen is first discharged from the exhaust pipe 132 into the existing cavity 1111 of the longitudinal beam 111, and then discharged to the external environment through the existing through hole 1112 of the longitudinal beam 111. This arrangement can ensure that nitrogen is smoothly discharged outside the vehicle. At the same time, foreign objects such as sand and gravel need to enter the cavity 1111 of the longitudinal beam 111 through the through hole 1112 before they can enter the exhaust pipe 132 through the exhaust end 132b. The path of foreign objects to the exhaust end 132b becomes more complicated, which increases the difficulty for foreign objects to reach the exhaust end 132b. This can improve the situation where nitrogen discharge from the exhaust pipe 132 is not smooth in a short time.

[0086] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0088] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0089] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0090] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0091] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A vehicle (1), characterized in that, The vehicle (1) includes a main body (11) and an on-board oxygen generation system (13). The body (11) has a longitudinal beam (111), the longitudinal beam (111) has a cavity (1111) and a through hole (1112), the through hole (1112) is used to connect the cavity (1111) with the external environment; The vehicle-mounted oxygen generation system (13) includes an oxygen generation device (131) and an exhaust pipe (132). The air inlet (132a) of the exhaust pipe (132) is connected to the oxygen generation device (131), and the exhaust end (132b) of the exhaust pipe (132) is connected to the cavity (1111).

2. The vehicle (1) according to claim 1, characterized in that, The exhaust end (132b) is offset from the through hole (1112).

3. The vehicle (1) according to claim 1, characterized in that, The opening orientation of the exhaust end (132b) forms a preset angle with the opening orientation of the through hole (1112).

4. The vehicle (1) according to claim 3, characterized in that, The preset included angle is 90°.

5. The vehicle (1) according to claim 1, characterized in that, The exhaust pipe (132) has a first pipe section (1321), a second pipe section (1322) and a third pipe section (1323) connected in sequence. The first pipe section (1321) has the air inlet end (132a); The third pipe section (1323) has the exhaust end (132b) and is arranged outside the body (11); At least a portion of the second pipe segment (1322) is located above the third pipe segment (1323).

6. The vehicle (1) according to claim 5, characterized in that, The second pipe section (1322) is arranged inside the body (11).

7. The vehicle (1) according to claim 5, characterized in that, At least some parts of the second pipe section (1322) are at a height higher than the preset maximum wading height of the vehicle (1).

8. The vehicle (1) according to claim 5, characterized in that, The vehicle-mounted oxygen generation system (13) also includes a muffler (133). The air inlet (132a) is connected to the oxygen generator (131) through the silencer (133).

9. The vehicle (1) according to claim 8, characterized in that, The silencer (133) and the first pipe section (1321) are both arranged outside the body (11).

10. The vehicle (1) according to any one of claims 1-9, characterized in that, The oxygen generating device (131) is arranged inside the main body (11).

Images