Waterproof air cleaner and vehicle

Abstract

The application provides a waterproof air filter and a vehicle, which comprises a filter main body, an air inlet pipe and an air outlet pipe. An upward and outward bending structure is formed at the connection between the air inlet section and the drainage section of the air inlet pipe, so that water is prevented from flowing directly into the shell under the action of gravity after entering the air inlet pipe. The bending structure not only increases the resistance of water flowing into the air inlet pipe, but also temporarily stores water, reduces the probability of water entering the filter element, avoids the problem of insufficient air intake caused by the blockage of the filter element due to water absorption, and ensures that the engine can always obtain sufficient air supply, maintains normal power output and fuel efficiency.

Description

Technical Field

[0001] This application belongs to the field of air filter technology, and more specifically, relates to a waterproof air filter and vehicle. Background Technology

[0002] The air filter is a core component of the intake system of internal combustion engines (such as cars, motorcycles, and tractors). Its main function is to filter the air entering the engine, remove impurities, protect the engine, and maintain its efficient operation. When an engine is running, it needs to draw in a large amount of air (which mixes with fuel to form a combustible mixture). This air typically contains impurities such as dust, sand, pollen, moisture, and carbon particles. The core function of the air filter is to filter these impurities, preventing them from entering the engine cylinders. This avoids impurities wearing down precision components such as pistons, piston rings, cylinder walls, and valves, and also prevents impurities from clogging fuel injectors or valves. Therefore, it protects the engine, extends its service life, and maintains normal power output and fuel efficiency.

[0003] To save space, some vehicles have their air intakes positioned low. When driving on flooded roads or during heavy rain, water, rainwater, or splashing mud can easily enter the air intake. Once water gets into the air intake, it quickly enters the air filter, affecting its filtering performance. Moisture adhering to the filter element can clog its pores, leading to insufficient air intake and causing problems such as reduced engine power and increased fuel consumption. In severe cases, water ingress can damage critical components such as pistons and connecting rods, causing serious mechanical failures and significantly reducing the reliability and lifespan of the vehicle or machinery. Utility Model Content

[0004] The purpose of this application is to provide a waterproof air filter and vehicle, which aims to solve the problem that when existing vehicles encounter flooded roads, water can easily enter the filter element of the air filter through the intake pipe, resulting in reduced filtration performance and even causing engine failure.

[0005] In a first aspect, embodiments of this application provide a waterproof air filter, comprising:

[0006] A filter body includes a housing and a filter element disposed within the filter body;

[0007] An intake pipe includes an intake section and a guide section sequentially distributed along the intake direction, wherein the guide section is connected to the outer casing, the free end of the intake section forms an intake port, the connection between the intake section and the guide section is smoothly transitioned, and the connection is bent upward and outward; and

[0008] An exhaust pipe is connected to the outer casing, and the exhaust end of the exhaust pipe is used to connect to the cylinder.

[0009] The beneficial effect of the waterproof air filter provided in this application is that, compared with the prior art, by forming an upward and outward bending structure at the connection between the intake section and the drainage section of the intake pipe, it prevents water from directly flowing into the outer shell under gravity after entering the intake pipe. The multi-directional bending structure not only increases the resistance to water flow into the intake pipe, but also temporarily stores water at the bends, reducing the probability of water entering the filter element. This avoids insufficient air intake caused by filter element blockage due to water absorption, ensuring that the engine always receives sufficient air supply, maintaining normal power output and fuel efficiency. The overall structural design of this application is ingenious, requiring no additional complex waterproof components. It achieves excellent waterproofing while saving space, making it suitable for vehicles with low-set air intakes due to space constraints, improving the vehicle's adaptability and safety in complex road conditions such as flooded roads and heavy rain.

[0010] In conjunction with the first aspect, in one possible implementation, the air intake end of the air intake pipe forms a waterproof slope, and the lower part of the waterproof slope is inclined toward the side closer to the drainage section.

[0011] In the above technical solution, the lower part of the waterproof slope is inclined towards the side closer to the drainage section, thereby creating a shield between the upper and lower parts of the waterproof slope. This reduces the likelihood of rainwater entering the air intake pipe during rainy weather. Simultaneously, when water comes into contact with the waterproof slope, it flows along the lower part of the slope towards the side closer to the drainage section, reducing the possibility of water directly entering the air intake.

[0012] In conjunction with the first aspect, in one possible implementation, the outer casing includes a main housing and a connecting pipe communicating with the main housing, the air intake pipe is connected to the connecting pipe, and the waterproof air filter further includes a sealing clamp sleeved on the outer periphery of the connection between the connecting pipe and the air intake pipe.

[0013] In the above technical solution, the intake pipe is connected to the outer shell via a guide section. At this time, the sealing clamps fitted around the joint apply uniform radial pressure to the connection, ensuring a tight fit between the intake pipe and the connecting pipe. When air enters from the intake pipe and flows towards the filter body, the sealing clamps effectively prevent airflow from leaking through the joint gap, ensuring that all air enters the main shell and is filtered by the filter element.

[0014] In conjunction with the first aspect, in one possible implementation, the air intake pipe is provided with a connecting bracket for connecting to the decorative panel.

[0015] In the above technical solution, after the connecting bracket is connected to the decorative panel, the air intake pipe can be firmly positioned in a specific position on the vehicle, avoiding displacement or shaking of the air intake pipe due to vibration and bumps during vehicle operation, and reducing the risk of air and water leakage caused by increased gaps in the connection caused by the shaking of the air intake pipe.

[0016] In conjunction with the first aspect, in one possible implementation, the outer shell includes an upper shell and a lower shell that are mated to each other. The filter element and the upper shell enclose an air inlet chamber, and the filter element and the lower shell enclose an air outlet chamber. The air inlet pipe is connected to the air inlet chamber, and the air outlet pipe is connected to the air outlet chamber. A receiving gap is formed at the mating point of the upper shell and the lower shell. The filter element is inserted into the receiving gap, and the upper shell and the lower shell clamp and fix the filter element in the vertical direction.

[0017] In the above technical solution, the upper and lower housings clamp and fix the filter element in the vertical direction, ensuring that the filter element is stably positioned in a preset location and preventing it from loosening or shifting due to vibration or bumps during vehicle operation. This clamping and fixing method not only ensures a tight fit between the filter element and the upper and lower housings but also eliminates the need for external connecting parts, simplifying the assembly process. Furthermore, it avoids the need for mounting holes in the filter element, upper housing, and lower housing, thus improving the overall sealing performance.

[0018] In conjunction with the first aspect, in one possible implementation, both the upper housing and the lower housing include a main housing area and a connecting flange connected to the outer edge of the main housing area. The connecting flange has a sealing groove, and the filter body also includes a sealing ring embedded in the sealing groove. The sealing ring abuts and seals with the filter element.

[0019] In the above technical solution, the sealing groove serves to position and embed the sealing ring, preventing it from shifting or falling off during assembly or use, thus ensuring the durability of the sealing effect. Simultaneously, the sealing ring, through its vertical contact with the filter element, forms a tight sealing barrier at the joint between the filter element and the upper and lower housings. This embodiment effectively prevents unfiltered air from the intake chamber from bypassing the filter element and directly entering the outlet chamber, ensuring that all air must be filtered by the filter element, thereby improving the reliability of the filtration system.

[0020] In conjunction with the first aspect, in one possible implementation, the waterproof air filter further includes a fixing post connected to the housing, the fixing post being located at the bottom of the housing and having a fixing hole for detachable connection with the vehicle body.

[0021] In the above technical solution, continuous vibration and bumps occur during vehicle operation. The fixing holes are adapted to the mounting holes on the vehicle body, allowing bolts or clips to be inserted into the fixing holes and mounting holes, thus securing the air filter to the vehicle body and preventing it from colliding or shifting with surrounding components due to shaking. This ensures the stability of connections such as the intake and exhaust pipes. The detachable connection method makes the installation and removal of the air filter much simpler.

[0022] In conjunction with the first aspect, in one possible implementation, the waterproof air filter further includes a limiting bracket connected to the housing, the limiting bracket having a snap-fit ​​hole for engaging with the vehicle body.

[0023] In the above technical solution, during assembly, the components are first inserted into the vehicle body fixing points through the snap-fit ​​holes. Initial positioning is achieved through this snap-fit ​​engagement, ensuring precise alignment of the fixing holes with the mounting holes on the frame. Subsequently, bolts or snap-fit ​​components are simply passed through the fixing holes to complete the fixation. Compared to a fully bolted fixing method, this reduces the alignment and tightening steps of multiple bolts, lowers the operational difficulty during assembly, and allows for faster installation, thus improving assembly efficiency. When it is necessary to disassemble the outer shell, simply unscrewing the bolts allows for easy detachment from the frame fixing points, eliminating the need to disassemble multiple fasteners individually and reducing the workload during maintenance.

[0024] In conjunction with the first aspect, in one possible implementation, the vent pipe includes a guide section and an vent section that bends downward toward the guide section, the guide section being connected to the outer casing and smoothly transitioning with the vent section.

[0025] In the aforementioned technical solution, the smoothly transitioning bend structure guides the airflow smoothly to the lower outlet section, avoiding the airflow turbulence that might be caused by right-angle or sharp-angle bends. This reduces air resistance and pressure loss during airflow, allowing air to be delivered more smoothly from the casing to the cylinder. Furthermore, the smoothly transitioning bend structure also reduces noise caused by airflow impact. As airflow passes through the bend, the absence of sharp edges significantly reduces turbulence, thereby lowering vibrations and noise generated during airflow. This contributes to improving the vehicle's NVH performance and enhancing driving comfort.

[0026] Secondly, embodiments of this application also provide a vehicle including the aforementioned waterproof air filter.

[0027] The beneficial effects of the vehicle provided in this application are that, compared with the prior art, it adopts the aforementioned waterproof air filter. By forming an upward and outward bending structure at the connection between the intake section and the drainage section of the intake pipe, it prevents moisture from directly flowing into the outer casing under gravity after entering the intake pipe. The multi-directional bending structure not only increases the resistance to moisture flow into the intake pipe, but also temporarily stores moisture at the bends, reducing the probability of moisture entering the filter element. This avoids insufficient air intake caused by filter element blockage due to water absorption, ensuring that the engine always receives sufficient air supply, maintaining normal power output and fuel efficiency. The overall structural design of this application is ingenious, requiring no additional complex waterproof components. It achieves excellent waterproofing while saving space, making it suitable for vehicles with low-set air intakes due to space constraints. This improves the vehicle's adaptability and safety in complex road conditions such as flooded roads and heavy rain. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a waterproof air filter provided in an embodiment of this application;

[0030] Figure 2 This is another structural schematic diagram of a waterproof air filter provided in an embodiment of this application;

[0031] Figure 3 for Figure 2 A sectional view along line AA.

[0032] Figure 4 for Figure 3 A magnified view of part B in the middle.

[0033] In the diagram: 1. Outer shell; 101. Upper shell; 1011. Main shell area; 1012. Connecting flange; 102. Lower shell; 103. Connecting pipe; 2. Inlet pipe; 201. Drainage section; 202. Inlet section; 203. Waterproof slope; 3. Outlet pipe; 301. Air guide section; 302. Outlet section; 4. Sealing clamp; 5. Limiting bracket; 501. Snap-fit ​​hole; 6. Fixing post; 7. Connecting bracket; 8. Filter element; 9. Sealing ring. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to 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 of this application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0037] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", the bottom of the vehicle represents "down", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the driver's cab.

[0038] In addition, the front-rear direction of the vehicle body as defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body as defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body as defined refers to the up-down direction of the vehicle's forward direction during driving.

[0039] It should be noted that the existing air intake pipe has a relatively simple structure and lacks an effective waterproof design. For example, some air intake pipes are straight pipes without any bends or obstructions. When water flows from the air intake, there is almost no obstruction, and it can directly enter the pipe.

[0040] Please refer to the following: Figures 1 to 4The waterproof air filter and vehicle provided in this application will now be described. The waterproof air filter includes a filter body, an intake pipe 2, and an outlet pipe 3. The filter body includes a housing 1 and a filter element 8 disposed within the filter body. The intake pipe 2 includes an intake section 202 and a guide section 201 distributed sequentially along the intake direction. The guide section 201 is connected to the housing 1. The free end of the intake section 202 forms an air inlet. The connection between the intake section 202 and the guide section 201 is smoothly transitioned and bends upward and outward at the connection point. The outlet pipe 3 is connected to the housing 1, and the outlet end of the outlet pipe 3 is used to connect to a cylinder.

[0041] The waterproof air filter provided in this application, compared with the prior art, forms an upward and outward bending structure at the connection between the intake section 202 and the drainage section 201 of the intake pipe 2. This prevents moisture from directly flowing into the outer shell 1 under gravity after entering the intake pipe 2. The multi-directional bending structure not only increases the resistance to moisture flow into the intake pipe 2, but also temporarily stores moisture at the bend, reducing the probability of moisture entering the filter element 8. This avoids insufficient air intake caused by water blockage in the filter element 8, ensuring that the engine always receives sufficient air supply, maintaining normal power output and fuel efficiency. The overall structural design of this application is ingenious, requiring no additional complex waterproof components. It achieves good waterproof performance while saving space, making it suitable for vehicles with low-set air intakes due to space constraints. This improves the vehicle's adaptability and safety in complex road conditions such as flooded roads and heavy rain.

[0042] Work process:

[0043] Outside air first enters through the intake port of intake pipe 2. The air flows along intake section 202 to the connection with guide section 201. Due to the smooth transition design of this connection, which bends upward and outward, when the air contains moisture (such as mud splashed from a vehicle passing through a flooded road or rainwater during a heavy rain), the moisture will have difficulty entering guide section 201 smoothly due to its own inertia and the guiding effect of the curved structure. Most of the moisture will be separated at the bend, flowing down the pipe wall on the outside of the bend or being blocked. The air that has undergone preliminary moisture separation continues to enter the outer shell 1 of the filter body through guide section 201. The air entering the outer shell 1 is filtered by filter element 8, where dust, sand, and other impurities are effectively intercepted. The purified air is then delivered to the cylinder through exhaust pipe 3 to meet the combustion requirements of the engine.

[0044] Optionally, multiple exhaust pipes 3 are provided, with each exhaust pipe 3 corresponding to a cylinder to improve the engine's intake efficiency.

[0045] Optionally, the connection between the air intake section 202 and the drainage section 201 is inclined upward and then downward by 10° to prevent rainwater from entering the air intake pipe 2 when it rains.

[0046] Specifically, the connection between the intake section 202 and the drainage section 201 is bent outwards, which can also avoid the coolant filling port of the radiator, making it convenient to add coolant.

[0047] Please see Figure 1 In some embodiments, the air intake end of the air intake pipe 2 forms a waterproof slope 203, and the lower part of the waterproof slope 203 is inclined toward the side close to the drainage section 201.

[0048] The lower part of the waterproof slope 203 is inclined towards the side closer to the drainage section 201, thereby creating a shield between the upper and lower parts of the waterproof slope 203. This reduces the likelihood of rainwater entering the air intake pipe 2 during rainy weather. Simultaneously, when water comes into contact with the waterproof slope 203, it flows along the lower part of the slope towards the side closer to the drainage section 201, reducing the possibility of water directly entering the air intake.

[0049] Optionally, the waterproof slope 203 has an angle of 75° with the horizontal plane. When rainwater or splashing mud impacts the slope, the larger angle makes it difficult for water to seep vertically into the air intake. At the same time, with the help of gravity, the water can quickly slide down the steep slope, reducing the risk of water being carried into the air intake by airflow disturbance. In addition, it avoids excessive compression of the effective cross-sectional area of ​​the air intake passage due to an excessively steep slope, ensuring that air can smoothly enter the air intake section 202 from the air intake, ensuring that the engine receives sufficient air volume and maintaining the stability of power output.

[0050] Please see Figure 1 In some embodiments, the outer casing 1 includes a main casing and a connecting pipe 103 connected to the main casing, and the air intake pipe 2 is connected to the connecting pipe 103. The waterproof air filter also includes a sealing clamp 4 sleeved on the outer periphery of the connection between the connecting pipe 103 and the air intake pipe 2.

[0051] The intake pipe 2 is connected to the connecting pipe 103 of the outer shell 1 via the drainage section 201. At this time, the sealing clamp 4, fitted around the joint, applies uniform radial pressure to the connection, ensuring a tight fit between the intake pipe 2 and the connecting pipe 103. When air enters from the intake pipe 2 and flows towards the filter body, the sealing clamp 4 effectively prevents airflow leakage from the joint gap, ensuring all air enters the main shell and is filtered by the filter element 8. Simultaneously, when moisture attempts to seep in from the joint gap between the intake pipe 2 and the connecting pipe 103, the tight seal formed by the sealing clamp 4 isolates the moisture from the outside, preventing it from entering the inner shell 1 and contacting the filter element 8. This embodiment improves the sealing performance at the joint between the intake pipe 2 and the connecting pipe 103, effectively preventing moisture from seeping into the outer shell 1 from the joint gap, reducing the probability of moisture contacting the filter element 8, and ensuring the stability of the filter element 8's filtration performance.

[0052] Optionally, the connecting pipe 103 is an integral component with the main housing.

[0053] Please see Figure 1 In some embodiments, the intake pipe 2 is provided with a connecting bracket 7, which is used to connect to the decorative panel.

[0054] After the connecting bracket 7 is connected to the decorative panel, the air intake pipe 2 can be firmly positioned in a specific location on the vehicle, preventing displacement or shaking of the air intake pipe 2 due to vibration and bumps during vehicle operation. This reduces the risk of air and water leakage caused by increased gaps in the connection seam due to the shaking of the air intake pipe 2. In addition, the decorative panel has a certain protective capability. After the connecting bracket 7 connects the air intake pipe 2 to the decorative panel, the decorative panel can, to a certain extent, block external debris (such as mud, sand, gravel, etc.) from directly impacting the air intake pipe 2, reducing the possibility of damage to the air intake pipe 2 due to external impact and extending the service life of the air intake pipe 2.

[0055] Optionally, the connecting bracket 7 and the decorative panel have corresponding connecting holes, and a connector is inserted into the connecting hole. The connector is a threaded part or a snap-fit ​​part.

[0056] Optionally, the connecting bracket 7 and the air intake pipe 2 are integrally formed to avoid the problem of reduced sealing of the air intake pipe 2 due to missed welding during welding.

[0057] Please see Figure 3 and Figure 4 In some embodiments, the outer shell 1 includes an upper shell 101 and a lower shell 102 that are connected to each other. The filter element 8 and the upper shell 101 enclose an air inlet chamber, and the filter element 8 and the lower shell 102 enclose an air outlet chamber. The air inlet pipe 2 is connected to the air inlet chamber, and the air outlet pipe 3 is connected to the air outlet chamber. A receiving gap is formed at the joint of the upper shell 101 and the lower shell 102. The filter element 8 is inserted into the receiving gap, and the upper shell 101 and the lower shell 102 clamp and fix the filter element 8 in the vertical direction.

[0058] The upper housing 101 and lower housing 102 clamp and fix the filter element 8 in the vertical direction, ensuring that the filter element 8 is stably in a preset position and preventing it from loosening or shifting due to vibration or bumps during vehicle operation. This clamping and fixing method not only ensures a tight fit between the filter element 8 and the upper and lower housings 102, but also eliminates the need for external connecting parts, simplifying the assembly process. It also avoids the need for mounting holes in the filter element 8, upper housing 101, and lower housing 102, thus improving overall sealing performance.

[0059] Optionally, the upper housing 101 has an arc-shaped outer surface to avoid the fuel tank above the outer housing 1. The lower housing 102 has a clearance ramp that avoids the TCU below the outer housing 1 to prevent mutual interference.

[0060] Please see Figure 3 and Figure 4 In some embodiments, both the upper housing 101 and the lower housing 102 include a main housing area 1011 and a connecting flange 1012 connected to the outer edge of the main housing area 1011. The connecting flange 1012 has a sealing groove. The filter body also includes a sealing ring 9 embedded in the sealing groove. The sealing ring 9 abuts and seals with the filter element 8.

[0061] The sealing groove serves to position and embed the sealing ring 9, preventing it from shifting or falling off during assembly or use, thus ensuring the durability of the seal. Simultaneously, the sealing ring 9, through its vertical contact with the filter element 8, forms a tight sealing barrier at the junction of the filter element 8 and the upper and lower housings 102. This embodiment effectively prevents unfiltered air from the intake chamber from bypassing the filter element 8 and directly entering the exhaust chamber, ensuring that all air is filtered by the filter element 8, thereby improving the reliability of the filtration system. Furthermore, the sealing action of the sealing ring 9 provides flexible fixation for the filter element 8, offering uniform pressure in the vertical direction. This enhances the stability of the filter element 8 installation and avoids damage that rigid clamping might cause, protecting the structural integrity of the filter element 8 and extending its service life. Additionally, the sealing ring 9 buffers vibration transmission during vehicle operation, reducing wear caused by friction between the filter element 8 and the housing, ensuring that the filter element 8 always maintains good filtration performance.

[0062] Please see Figure 1 In some embodiments, the waterproof air filter also includes a fixing post 6 connected to the housing 1. The fixing post 6 is located at the bottom of the housing 1 and has a fixing hole for detachable connection with the vehicle body.

[0063] During vehicle operation, continuous vibrations and bumps occur. The mounting holes on the vehicle body align with the fixing holes, allowing bolts or clips to be inserted into them, thus securing the air filter to the vehicle body. This prevents the air filter from colliding with or shifting due to shaking, ensuring the stability of connections such as the intake pipe 2 and exhaust pipe 3. The detachable connection method simplifies the installation and removal of the air filter. When it is necessary to replace or clean the filter element 8, or to inspect the internal components of the air filter, simply disconnect the mounting bracket from the vehicle body to easily remove the entire device. This eliminates the need for complex disassembly procedures, significantly reducing maintenance difficulty.

[0064] Please see Figure 1 and Figure 3 In some embodiments, the waterproof air filter also includes a limiting frame 5 connected to the housing 1, the limiting frame 5 having a snap-fit ​​hole 501 for snap-fitting with the vehicle body.

[0065] During assembly, the components are first inserted into the mounting points on the vehicle body via the snap-fit ​​holes 501. This snap-fit ​​engagement achieves initial positioning, ensuring precise alignment of the mounting holes on the frame. Subsequently, bolts or snap-fit ​​components are simply passed through the mounting holes to complete the fixation. Compared to a fully bolted method, this reduces the alignment and tightening of multiple bolts, lowers the operational difficulty during assembly, and allows for faster installation, thus improving assembly efficiency. When it is necessary to disassemble the outer shell 1, simply unscrew the bolts to easily detach it from the frame mounting points, eliminating the need to disassemble multiple fasteners individually and reducing the workload during maintenance.

[0066] Please see Figures 1 to 2 In some embodiments, the air outlet pipe 3 includes an air guide section 301 and an air outlet section 302 that bends below the air guide section 301. The air guide section 301 is connected to the outer casing 1 and smoothly transitions with the air outlet section 302.

[0067] This embodiment uses a smoothly transitioning bend structure to guide airflow smoothly to the lower outlet section 302, avoiding airflow turbulence that may be caused by right-angle or sharp-angle bends. This reduces air resistance and pressure loss during airflow, allowing air to be delivered more smoothly from the outer casing 1 to the cylinder. Here, the smoothly transitioning bend structure also reduces noise caused by airflow impact. When airflow passes through the bend, the absence of obvious sharp angles significantly reduces turbulence, thereby reducing vibration and noise generated during airflow, contributing to improved NVH performance and enhanced driving comfort.

[0068] Optionally, the exhaust pipe 3 is provided with multiple reinforcing ribs spaced apart along the axial direction, and also includes reinforcing ribs connecting adjacent reinforcing ribs. The reinforcing ribs are annular components. The annular reinforcing ribs can uniformly enhance the rigidity of the pipe wall along the circumference of the exhaust pipe 3, effectively resisting the forces brought by airflow impact, vehicle vibration, and collisions with external components, preventing the exhaust pipe 3 from deforming or cracking during long-term use. The reinforcing ribs connecting adjacent reinforcing ribs further form a mesh support structure, distributing the force on a single reinforcing rib to multiple locations, improving the overall structural stability and bending resistance of the exhaust pipe 3.

[0069] Based on the same inventive concept, this application also provides a vehicle. The vehicle includes the aforementioned waterproof air filter.

[0070] The vehicle provided by this utility model adopts the aforementioned waterproof air filter. By forming an upward and outward bending structure at the connection between the intake section 202 and the drainage section 201 of the intake pipe 2, it prevents moisture from directly flowing into the outer casing 1 under gravity after entering the intake pipe 2. This multi-directional bending structure not only increases the resistance to moisture flow into the intake pipe 2, but also temporarily stores moisture at the bends, reducing the probability of moisture entering the filter element 8. This avoids insufficient air intake caused by water blockage in the filter element 8, ensuring the engine always receives sufficient air supply and maintains normal power output and fuel efficiency. The overall structural design of this application is ingenious, requiring no additional complex waterproof components. It achieves excellent waterproofing while saving space, making it suitable for vehicles with low-set air intakes due to space constraints. This improves the vehicle's adaptability and safety in complex road conditions such as flooded roads and heavy rain.

[0071] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waterproof air filter, characterized in that, include: The filter body includes a housing (1) and a filter element (8) disposed within the filter body; An intake pipe (2) includes an intake section (202) and a guide section (201) sequentially distributed along the intake direction, wherein the guide section (201) is connected to the outer casing (1), the free end of the intake section (202) forms an intake port, the connection between the intake section (202) and the guide section (201) is smoothly transitioned, and the connection is bent upward and outward; and An exhaust pipe (3) is connected to the outer casing (1), and the exhaust end of the exhaust pipe (3) is used to connect to the cylinder.

2. The waterproof air filter as described in claim 1, characterized in that, The air inlet end of the air inlet pipe (2) forms a waterproof slope (203), and the lower part of the waterproof slope (203) is inclined to the side closer to the drainage section (201).

3. The waterproof air filter as described in claim 1, characterized in that, The outer casing (1) includes a main casing and a connecting pipe (103) connected to the main casing. The air intake pipe (2) is connected to the connecting pipe (103). The waterproof air filter also includes a sealing clamp (4) sleeved on the outer periphery of the connection between the connecting pipe (103) and the air intake pipe (2).

4. The waterproof air filter as described in claim 1, characterized in that, The air intake pipe (2) is provided with a connecting bracket (7), which is used to connect with the decorative panel.

5. The waterproof air filter as described in claim 1, characterized in that, The outer shell (1) includes an upper shell (101) and a lower shell (102) that are connected to each other. The filter element (8) and the upper shell (101) enclose an air inlet chamber, and the filter element (8) and the lower shell (102) enclose an air outlet chamber. The air inlet pipe (2) is connected to the air inlet chamber, and the air outlet pipe (3) is connected to the air outlet chamber. A receiving gap is formed at the joint of the upper shell (101) and the lower shell (102). The filter element (8) is inserted into the receiving gap, and the upper shell (101) and the lower shell (102) clamp and fix the filter element (8) in the vertical direction.

6. The waterproof air filter as described in claim 5, characterized in that, Both the upper shell (101) and the lower shell (102) include a main shell area (1011) and a connecting flange (1012) connected to the outer edge of the main shell area (1011). The connecting flange (1012) has a sealing groove. The filter body also includes a sealing ring (9) embedded in the sealing groove. The sealing ring (9) abuts and seals with the filter element (8).

7. The waterproof air filter as described in claim 1, characterized in that, The waterproof air filter also includes a fixing post (6) connected to the housing (1). The fixing post (6) is located at the bottom of the housing (1) and has a fixing hole for detachable connection with the vehicle body.

8. The waterproof air filter as described in claim 7, characterized in that, The waterproof air filter also includes a limiting frame (5) connected to the housing (1), the limiting frame (5) having a snap-fit ​​hole (501) for engaging with the vehicle body.

9. The waterproof air filter as described in claim 1, characterized in that, The air outlet pipe (3) includes an air guide section (301) and an air outlet section (302) that bends downward toward the air guide section (301). The air guide section (301) is connected to the outer shell (1) and smoothly transitions with the air outlet section (302).

10. A vehicle, characterized in that, A waterproof air filter having any one of claims 1-9.

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