A vehicle body side air intake structure

Abstract

The utility model relates to the technical field of engine air intake, specifically relates to a car body side air intake structure, the air intake structure is integrated in the car body side wall, including setting on the air intake panel of car body side wall outer panel and setting on the air outlet pipe of car body side wall inner plate, the air intake panel is as air intake entrance, and the air outlet pipe is as air intake exit, the air intake passage for air intake is formed between the air intake panel and air outlet pipe, the air intake passage is limited in the cavity formed between car body side wall outer plate and car body side wall inner plate, the position of air intake panel is higher than the upper edge of vehicle tyre, the direction of air outlet pipe is consistent with engine air intake direction, and the position of air outlet pipe is higher than the bottom surface of air intake passage, and the bottom of air intake passage is provided with one-way drain valve, the utility model integrates the air intake structure in the car body side wall, does not occupy the effective space in the car additionally, greatly reduces the engine water risk through high air intake and multiple waterproof design simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of engine intake technology, specifically to a vehicle body side intake structure. Background Technology

[0002] In commercial vehicles such as buses and trucks, rear-mounted engines require fresh air to be drawn in from the side of the vehicle body. Currently, mainstream side-intake solutions typically employ a separate air intake box or enclosure, installed through openings in the side panel of the vehicle. For example, Chinese utility model patent CN212422813U discloses a side-intake box assembly for buses, which achieves drainage through a bottom curved plate structure within the box; patent CN222136471U discloses a side-intake box structure with a deflector to improve waterproofing and airflow efficiency.

[0003] However, the aforementioned existing technologies have significant drawbacks. First, the independent air intake box or housing protrudes inward in the vehicle's width direction, inevitably encroaching on the interior space of the passenger compartment or luggage compartment, affecting seat arrangement or cargo capacity. Second, for ease of installation and pipeline length considerations, the air intake grille of this type of air intake structure is usually installed near the floor beam, at a low ground clearance. This means that when the vehicle passes through flooded roads, water from the road surface can easily be sucked into the engine through the air intake, posing a risk of engine stalling or damage, severely restricting the vehicle's wading capability.

[0004] Therefore, there is an urgent need for a side air intake structure that can efficiently utilize vehicle space without encroaching on the interior layout, and can significantly increase the height of the air intake to improve the vehicle's wading performance. Summary of the Invention

[0005] This utility model addresses the problem of existing vehicle body air intake structures encroaching on vehicle interior space and affecting wading performance by providing a vehicle body side air intake structure. This structure integrates the air intake structure into the side panel of the vehicle body, without taking up additional usable interior space. At the same time, through a high air intake and multiple waterproof designs, it greatly reduces the risk of water entering the engine.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A vehicle side air intake structure is integrated into the vehicle side panel, including an air intake panel disposed on the outer panel of the vehicle side panel and an air outlet pipe disposed on the inner panel of the vehicle side panel. The air intake panel serves as an air intake inlet, and the air outlet pipe serves as an air intake outlet. An air intake channel for air intake is formed between the air intake panel and the air outlet pipe, and the air intake channel is confined within a cavity formed between the outer panel of the vehicle side panel and the inner panel of the vehicle side panel. The air intake panel is positioned above the upper edge of the vehicle tires, the air outlet pipe is oriented in the same direction as the engine air intake, and the air outlet pipe is positioned above the bottom surface of the air intake channel. A one-way drain valve is installed at the bottom of the air intake channel. Integrating the air intake structure into the side panel of the vehicle body makes full use of the inherent space of the vehicle body and avoids the encroachment of additional components on the interior space. At the same time, the high-position air intake design improves the vehicle's wading performance.

[0007] Furthermore, the air intake panel is an air intake grille, with the grille opening angled downwards. The downward-facing grille effectively prevents rainwater from splashing in directly, forming the first line of defense against water damage and enhancing the structure's passive waterproofing capability.

[0008] Furthermore, the air intake channel is an S-shaped curved channel. This forces a change in the direction of airflow, throwing larger water droplets in the air against the channel wall, achieving air-water separation and improving the quality of the intake air.

[0009] Furthermore, the outlet of the air outlet pipe extending into the air intake channel is at an angle, with the longer side of the angled opening facing upwards. This prevents rainwater entering the air intake channel from the air intake panel from entering the engine air intake pipe.

[0010] Furthermore, the bottom surface of the air intake channel is inclined, and the one-way drain valve is installed at the lowest point of the air intake channel. This guides the separated rainwater to naturally collect at the lowest point, creating conditions for centralized drainage and preventing water accumulation.

[0011] Furthermore, the inclination angle of the bottom surface is not less than 5 degrees. Sufficient inclination is ensured to guarantee smooth drainage and prevent drainage problems caused by an excessively small angle.

[0012] Furthermore, the vertical distance between the lower edge of the exhaust pipe inlet and the bottom surface of the intake channel is not less than 60 mm. This provides sufficient safety height to ensure that the exhaust pipe inlet is far from any water accumulation at the bottom of the channel, effectively preventing water from being sucked into the engine.

[0013] Furthermore, the one-way drain valve is a duckbill valve. The duckbill valve can automatically open to drain water when there is no pressure or the internal pressure is high, and automatically close when the external water pressure is high, effectively preventing backflow of accumulated water and realizing automatic and reliable drainage and sealing functions.

[0014] The beneficial effects of this utility model through the above technical solution are as follows: This utility model integrates the air intake structure into the side panel of the vehicle body and utilizes the cavity between the outer panel and the inner panel of the side panel to form an air intake channel, making full use of the vehicle body wall thickness space, avoiding the occupation of interior space by a separate air intake box, and improving space utilization.

[0015] This utility model places the air intake panel at a high position, and in conjunction with the air outlet pipe positioned above the bottom of the passage and the one-way drain valve at the bottom, it significantly improves the vehicle's water-wading performance, effectively prevents engine malfunctions due to water ingress, and enhances the vehicle's practicality and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the outer side of this utility model; Figure 2 This is a schematic diagram of the inner structure of this utility model; Figure 3 This is a schematic diagram of the air intake channel of this utility model; Figure 4 This is a schematic diagram of the air outlet pipe of this utility model; The attached diagram is labeled as follows: 1 is the outer side panel of the vehicle body, 2 is the inner side panel of the vehicle body, 3 is the air intake panel, 4 is the air outlet pipe, 5 is the air intake passage, and 6 is the one-way drain valve. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4 As shown, this embodiment provides a vehicle side air intake structure, which is integrated into the vehicle side panel, making full use of the structural space of the vehicle side panel itself. The vehicle side panel consists of an outer side panel 1 and an inner side panel 2, forming a side panel cavity between the outer side panel 1 and the inner side panel 2. The air intake channel 5 is disposed within the side panel cavity. The outer side panel 1 refers to the metal plate that forms the outer contour of the vehicle side panel, and the inner side panel 2 refers to the plate located inside the side panel, used for supporting, installing interior trim parts, or forming cavities. In this embodiment, the vehicle side air intake structure is located below the right front window of the vehicle.

[0018] The vehicle body side air intake structure includes an air intake panel 3, an air outlet pipe 4, and an air intake channel 5. The air intake panel 3 serves as an air intake inlet, and the air outlet pipe 4 serves as an air intake outlet. An air intake channel 5 for air intake is formed between the air intake panel 3 and the air outlet pipe 4. The air intake channel 5 is confined within the cavity formed between the outer side panel 1 and the inner side panel 2 of the vehicle body. Specifically, an inclined surface can be added or formed within the side panel cavity to make the cavity a sealed or semi-sealed channel with drainage guidance at the bottom.

[0019] The air intake panel 3 serves as an air intake inlet and is fixedly installed at the air intake opening on the outer side panel 1 of the vehicle body. In order to achieve high-level air intake, the position of the air intake panel 3 is higher than the upper edge of the vehicle tires. This height can usually reach more than 1.2 meters, which is much higher than the height of water accumulation on ordinary roads. This avoids the risk of a large amount of water being sucked into the engine and causing engine failure when the vehicle is wading through water.

[0020] The exhaust pipe 4, serving as the air intake outlet, is located on the inner side panel 2 of the vehicle body, below the floor, with its inlet end extending into the air intake passage 5. The direction of the exhaust pipe 4 is aligned with the direction of the engine air intake to reduce intake resistance and optimize intake efficiency. The positions of the air intake panel 3, the floor, and the exhaust pipe 4 are as follows: Figure 4 As shown. The air intake panel 3 and the air outlet pipe 4 are connected by an air intake channel 5. Specifically, a mounting cover is provided under the floor, the mounting cover is connected to the side cavity, and the air outlet pipe 4 is provided on the mounting cover.

[0021] This embodiment incorporates four layers of waterproofing measures: The air intake panel 3 is preferably an air intake grille, and the grille opening is angled downwards to effectively prevent rainwater from splashing in directly, forming the first active line of defense. Specifically, in this embodiment, the air intake grille is nested on the lower side panel of the right front window of the vehicle body through a recessed opening.

[0022] The second layer of waterproofing measures, to ensure air intake quality and achieve waterproofing, such as... Figure 4 As shown, the air intake channel 5 is an S-shaped curved channel. When air containing moisture flows through this S-shaped curved channel, the water droplets in the air are thrown against the channel wall under the action of centrifugal force and flow down the wall surface, realizing air-water separation. Specifically, a horizontal guide beam is provided inside the mounting cover. Air enters the air intake channel 5 from the air intake panel 3, moves downward along the air intake channel 5, changes direction at the guide beam, bypasses the guide beam, and leaves from the air outlet pipe 4, thus forming an S-shaped curved channel.

[0023] The third layer of waterproofing is to further enhance the waterproofing effect. The inlet end of the exhaust pipe 4 is positioned higher than the bottom surface of the intake channel 5. Preferably, the vertical distance between the lower edge of the inlet of the exhaust pipe 4 and the bottom surface of the intake channel 5 is not less than 60 mm, ensuring that the exhaust pipe 4 draws air from the upper area of ​​the intake channel 5, away from rainwater that may accumulate at the bottom. Simultaneously, the opening of the exhaust pipe 4 extending into the intake channel 5 is angled, with the long side of the angled opening at the top, effectively preventing rainwater entering the intake pipe from the grille from entering the engine intake pipe.

[0024] The fourth waterproofing measure involves an inclined bottom surface of the air intake channel 5 to effectively drain separated rainwater, with the one-way drain valve 6 located at its lowest point. Preferably, the inclination angle of the bottom surface is not less than 5 degrees to ensure that the collected liquid can flow smoothly to the drainage point. The one-way drain valve 6 is preferably a duckbill valve. Under normal conditions, a small amount of water accumulated in the air intake channel 5 can be smoothly drained by gravity pushing open its lip. When the vehicle is wading through water, and the water pressure outside the valve is higher than inside, its lip will close tightly under water pressure, effectively preventing external water from flowing back into the air intake channel 5.

[0025] The working principle of this utility model: Outside air first enters the S-shaped, curved intake passage 5 through the downward-opening intake panel 3. As it flows through the curved passage, water droplets mixed in with the air are thrown against the passage wall by centrifugal force, achieving the first air-water separation. The separated water droplets flow down the passage wall, separating from the mainstream air. The preliminarily purified air flows to the exhaust pipe 4. Because its opening is slanted and the long side is on top, and it is far from the bottom of the passage, dry air is preferentially drawn into the engine. Rainwater collected at the bottom of the intake passage 5 flows to the lowest point under the guidance of the sloping bottom surface and is automatically discharged by the one-way drain valve 6 when the vehicle is not in a water-wading state; when the vehicle is in water and the external water pressure increases, the valve automatically closes to prevent backflow of water.

[0026] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A vehicle side air intake structure, said air intake structure being integrated into the vehicle side panel, characterized in that, It includes an air intake panel (3) disposed on the outer side panel (1) of the vehicle body and an air outlet pipe (4) disposed on the inner side panel (2) of the vehicle body. The air intake panel (3) serves as an air intake inlet, and the air outlet pipe (4) serves as an air intake outlet. An air intake channel (5) for air intake is formed between the air intake panel (3) and the air outlet pipe (4). The air intake channel (5) is confined within the cavity formed between the outer side panel (1) of the vehicle body and the inner side panel (2) of the vehicle body. The air intake panel (3) is positioned higher than the upper edge of the vehicle tires, the direction of the air outlet pipe (4) is consistent with the direction of the engine air intake, and the position of the air outlet pipe (4) is higher than the bottom surface of the air intake channel (5). A one-way drain valve (6) is provided at the bottom of the air intake channel (5).

2. The vehicle side air intake structure according to claim 1, characterized in that, The air intake panel (3) is an air intake grille, and the grille opening of the air intake grille is set obliquely downward.

3. The vehicle side air intake structure according to claim 1, characterized in that, The air intake channel (5) is an S-shaped curved channel.

4. The vehicle side air intake structure according to claim 1, characterized in that, The outlet pipe (4) extends into the inlet channel (5) with an oblique opening, and the long side of the oblique opening is located at the top.

5. The vehicle side air intake structure according to claim 1, characterized in that, The bottom surface of the air intake channel (5) is inclined, and the one-way drain valve (6) is provided at the lowest point of the air intake channel (5).

6. The vehicle side air intake structure according to claim 5, characterized in that, The inclination angle of the bottom surface is not less than 5 degrees.

7. The vehicle side air intake structure according to claim 1, characterized in that, The vertical distance between the lower edge of the inlet of the air outlet pipe (4) and the bottom surface of the air inlet channel (5) is not less than 60 mm.

8. The vehicle side air intake structure according to claim 1, characterized in that, The one-way drain valve (6) is a duckbill valve.

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