Air intake filter device, vehicle and method of assembling the same

Abstract

This invention discloses an air intake filtration device, a vehicle, and its assembly method, relating to the technical field of heavy-duty vehicles. The air intake filtration device includes: a flow guide assembly and a filter assembly. The flow guide assembly has an air inlet; the filter assembly includes a first filter structure and a second filter structure; the first filter structure is connected to the flow guide assembly and is configured to cause the airflow passing through it to form a swirling flow to separate particles in the airflow; a communication structure connects the downstream end of the first filter structure and the upstream end of the second filter structure; an air outlet is provided at the downstream end of the second filter structure, and a filter element is disposed within the second filter structure, with the filter element located between the upstream end of the second filter structure and the air outlet. The air intake filtration device of this invention can continuously output clean and sufficient air, which is beneficial for stabilizing engine power output and preventing serious engine failures such as cylinder scoring and turbocharger oil leakage caused by insufficient air intake and filter element failure.

Description

Technical Field

[0001] This invention relates to the technical field of heavy vehicles, and more specifically, to an air intake filter device, a vehicle, and an assembly method thereof. Background Technology

[0002] Heavy-duty trucks are vehicles used for heavy-load transportation. The intake system is a crucial component of the heavy-duty truck engine, and the air filter is its most important part. The air filter filters the engine's intake air, removing harmful impurities to reduce premature wear on the cylinders, pistons, piston rings, valves, and valve seats. Engines are highly precise machines; even tiny impurities can damage them. In some technologies, heavy-duty truck intake systems use a single filtration method, such as using only a filter element. However, in harsh environments, a single filtration method is insufficient for effective dust removal and can easily lead to air filter failure, resulting in insufficient engine power and even problems like cylinder scoring and turbocharger oil leaks. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an air intake filter device, a vehicle and an assembly method thereof. The air intake filter device of the present invention can continuously output clean and sufficient air, which is beneficial to stabilize the engine power output and prevent serious engine failures such as cylinder scoring and turbocharger oil leakage caused by insufficient air intake and filter failure.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The present invention provides an air intake filtration device for a vehicle, comprising: a flow guide assembly having an air inlet for introducing external air; a filter assembly including a first filter structure and a second filter structure; the first filter structure being connected to the flow guide assembly and configured to cause airflow flowing therethrough to form a swirling flow to separate particles in the airflow; a communication structure connecting the downstream end of the first filter structure to the upstream end of the second filter structure; an air outlet being provided at the downstream end of the second filter structure; a filter element being disposed within the second filter structure and the filter element being located between the upstream end of the second filter structure and the air outlet.

[0006] In some embodiments, the first filtering structure includes:

[0007] A first housing has a flow-diverting cavity and a receiving cavity inside, the receiving cavity being spaced apart from the flow-diverting cavity; the flow-diverting cavity is connected to the flow-guiding assembly; one end of the connecting structure is connected to the interior of the receiving cavity, and the other end of the connecting structure is connected to the upstream end of the second filter structure;

[0008] Multiple swirling tubes are disposed within the first housing and spaced apart. The inlet end of each swirling tube is disposed within the flow-dividing cavity, and the outlet end of each swirling tube is disposed within the receiving cavity. The inner wall surface of each swirling tube is provided with a first inner spiral protrusion.

[0009] In some embodiments, the diversion cavity is located at the top of the receiving cavity; one end of the communicating structure is spaced apart from the bottom wall of the receiving cavity.

[0010] In some embodiments, there are multiple air inlets, which are arranged in an array and extend in the same direction; each air inlet has a second inner spiral protrusion on its inner wall surface.

[0011] In some embodiments, the flow guiding assembly includes an air inlet duct, which includes a first section and a second section, the first section and the second section being connected; the first section extends laterally, and an end plate is provided at one end of the first section in the lateral direction, and a plurality of air inlets are provided on the end plate; the second section extends vertically, and the other end of the first section in the lateral direction is connected to the top end of the second section, and the bottom end of the second section is connected to the interior of the flow diversion cavity.

[0012] In some embodiments, a plurality of flow guiding structures are provided within the second segment, each of the flow guiding structures protruding toward the inner side of the second segment; each of the flow guiding structures extends vertically.

[0013] In some embodiments, the air inlet duct is a rigid structure;

[0014] The flow guiding assembly also includes a connecting tube, which is a flexible structure; one end of the connecting tube is fixedly connected to the bottom of the second section and communicates with the second section, the other end of the connecting tube is fixedly connected to the first housing and communicates with the interior of the flow diversion cavity.

[0015] In some embodiments, a dust discharge port is provided at the bottom of the first segment;

[0016] The flow guiding assembly also includes a dust discharge valve, which is disposed at the dust discharge port; the central axis of the opening of the dust discharge valve extends vertically.

[0017] The vehicle of the present invention includes: a vehicle body; a supercharger disposed on the vehicle body; an intake filter device, wherein the intake filter device is any of the intake filter devices described above; the intake filter device is disposed on the vehicle body; and an intake pipe connected between the supercharger and the intake filter device.

[0018] The vehicle assembly method of the present invention is applied to the vehicle described above, and the assembly method includes:

[0019] Obtain information on the installation location of the engine turbocharger on the vehicle body and the structural parameters of the air intake filter device;

[0020] The structural parameters of the air intake pipe are determined based on the installation location information and the structural parameters of the air intake filter device.

[0021] The intake pipe is installed between the intake port of the turbocharger and the outlet of the intake filter.

[0022] The air intake filter device for vehicles in this embodiment of the invention utilizes the swirling separation effect of the first filter structure to filter the airflow. This allows for the separation of some larger particles (such as dust and sand) in the airflow before they contact the filter element. This reduces the filtration load on the filter element in the second filter structure, preventing air filter failure caused by rapid clogging under harsh operating conditions. This ensures the air intake filter device can continuously output sufficient air, which is beneficial for stable engine power output and prevents serious engine malfunctions such as cylinder scoring and turbocharger oil leaks caused by insufficient air intake and filter failure.

[0023] In addition, because the filter element has a reduced filtration load, it does not need to be maintained and replaced frequently, thus reducing the vehicle's maintenance frequency and operating costs.

[0024] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic structural diagram of the air intake filter device according to an embodiment of the present invention.

[0027] Figure 2 This is a schematic structural diagram of the flow guiding component according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic structural diagram of the air intake filter device according to another perspective of an embodiment of the present invention.

[0029] Figure 4 This is a schematic structural diagram of the air inlet duct according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic structural diagram of the first filtering structure according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic structural diagram of the second filtering structure according to an embodiment of the present invention.

[0032] Figure 7 This is a schematic flowchart of a vehicle assembly method according to an embodiment of the present invention.

[0033] Figure label:

[0034] 100. Flow guiding component; 101. Air inlet; 110. Air inlet duct; 111. First section; 112. Second section; 113. Flow guiding structure; 114. Dust outlet; 120. Connecting pipe body; 130. Dust discharge valve; 200. Filter assembly; 210. First filter structure; 211. First housing; 212. Flow dividing chamber; 213. Receiving chamber; 214. Swirl tube; 220. Second filter structure; 221. Filter element. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The air intake filtration device according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0037] like Figures 1-6 As shown, the air intake filtration device for a vehicle according to an embodiment of the present invention includes a flow guiding assembly 100 and a filter assembly 200.

[0038] The airflow guide assembly 100 has an air inlet 101, which is used to introduce external air. That is, external air enters the interior of the airflow guide assembly 100 through the air inlet 101 under the negative pressure of the engine intake or the suction of the turbocharger.

[0039] The filter assembly 200 includes a first filter structure 210 and a second filter structure 220, with the first filter structure 210 connected to the flow guiding assembly 100. The inlet of the first filter structure 210 and the outlet of the flow guiding assembly 100 can be directly connected or indirectly connected via an additional piping structure. The first filter structure 210 is configured to cause the airflow flowing through it to form a swirling flow, thereby separating particles in the airflow. Specifically, the first filter structure 210 can cause the airflow entering it to rotate, so that under the action of centrifugal force, heavier particles such as dust and gravel carried in the airflow are thrown against the inner wall of the first filter structure 210 and settle along the wall surface under gravity, thus achieving separation of particles from the airflow. A connecting structure connects the downstream end of the first filter structure 210 and the upstream end of the second filter structure 220, and the connecting structure is used to smoothly guide the airflow filtered by the first filter structure 210 into the second filter structure 220.

[0040] An air outlet is provided at the downstream end of the second filter structure 220. A filter element 221 is disposed inside the second filter structure 220, and the filter element 221 is located between the upstream end of the second filter structure 220 and the air outlet. This ensures that air entering the second filter structure 220 must pass through the filter element 221 to reach the air outlet. Thus, the filter element 221 further filters the airflow to remove fine dust particles from the airflow.

[0041] The specific working process of the air intake filter device for a vehicle according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0042] When the air intake filter is working, dusty external air enters the air intake 100 through the air inlet 101 of the air guide assembly 100, and flows into the first filter structure 210 after being guided by the air guide assembly 100. The airflow rotates within the first filter structure 210, causing some dust particles in the airflow to be separated. The filtered airflow then flows into the second filter structure 220 through the connecting structure for further filtration. The airflow filtered by the second filter structure 220 is then discharged from the air outlet.

[0043] Compared with related technologies, the air intake filter device for vehicles in this embodiment of the invention utilizes the swirling separation effect of the first filter structure 210 to filter the airflow. This allows for the separation of some larger particles (such as dust and sand) in the airflow before they contact the filter element 221. This reduces the filtration load on the filter element 221 in the second filter structure 220, preventing air filter failure caused by rapid clogging of the filter element 221 under harsh operating conditions. This ensures that the air intake filter device can continuously output sufficient and clean air, which is beneficial for stable engine power output and prevents serious engine malfunctions such as cylinder scoring and turbocharger oil leaks caused by insufficient air intake and filter element 221 failure.

[0044] Furthermore, since the filtration load of filter element 221 is reduced, filter element 221 does not require frequent maintenance and replacement, thus reducing the vehicle's maintenance frequency and operating costs.

[0045] In some embodiments, such as Figure 5 As shown, the first filter structure 210 includes a first housing 211 and a swirl tube 214. The first housing 211 has a flow-diverting cavity 212 and a receiving cavity 213, which are spaced apart from the flow-diverting cavity 212. The flow-diverting cavity 212 is connected to the flow-guiding assembly 100 to introduce external air into the flow-diverting cavity 212. One end of the connecting structure is connected to the interior of the receiving cavity 213, and the other end of the connecting structure is connected to the upstream end of the second filter structure 220.

[0046] Multiple swirl tubes 214 are disposed within the first housing 211 and spaced apart. The inlet end of each swirl tube 214 is located within the flow-dividing chamber 212, and the outlet end is located within the receiving chamber 213. Each swirl tube 214 has a first inner spiral protrusion on its inner wall. This ensures that the airflow from the flow-dividing chamber 212 to the receiving chamber 213 flows only through the interior of each swirl tube 214, guaranteeing that all airflow can undergo swirling separation within each swirl tube 214. Specifically, when the airflow flows from the inlet end to the outlet end of the swirl tube 214, guided by the first inner spiral protrusion, the axial motion of the airflow is converted into spiral flow, forming a swirling flow. Dust, gravel, and other particles carried in the airflow are thrown against the inner wall of the swirl tube 214 under centrifugal force and continue moving towards the outlet end with the airflow, eventually being ejected from the outlet end into the receiving chamber 213. The separated particles can settle to the bottom of the receiving cavity 213 under the action of gravity. The filtered airflow enters the interior of the second filter structure 220 from the receiving cavity 213 through the connecting structure.

[0047] Multiple swirl tubes 214 are spaced apart, which increases the air filtration efficiency of the swirl tubes 214 and avoids excessive intake resistance, thus adapting to the large intake volume requirements of heavy-duty truck engines. The first inner spiral protrusion on the inner wall of the swirl tube 214 can guide the airflow to generate swirl over a short axial distance, eliminating the need for additional guide vanes or other components. This results in a compact structure, reducing manufacturing costs and assembly complexity.

[0048] Furthermore, the receiving cavity 213 is provided with a dust discharge hole, and a dust discharge valve is provided at the dust discharge hole to facilitate the timely discharge of separated dust particles through the dust discharge hole.

[0049] In some embodiments, such as Figure 5 As shown, the diversion chamber 212 is located at the top of the receiving chamber 213, and one end of the connecting structure is spaced apart from the bottom wall of the receiving chamber 213. That is, the lighter, cleaner air, after being separated by swirling flow, tends to occupy the upper middle space of the receiving chamber 213. Because one end of the connecting structure is spaced apart from the bottom wall of the receiving chamber 213, avoiding the bottom region of the receiving chamber 213 where particulate matter accumulates, the air in the upper region of the receiving chamber 213, when discharged through this end of the connecting structure, can prevent the deposited dust from being re-entrained by the downstream airflow.

[0050] In some embodiments, such as Figures 1-4 As shown, there are multiple air inlets 101 arranged in an array, and the extension directions of the multiple air inlets 101 are consistent, such as left and right. Each air inlet 101 has a second inner spiral protrusion on its inner wall. The second inner spiral protrusion extends circumferentially along the inner wall of the air inlet 101 and propagates axially, with the spiral direction of the second inner spiral protrusions being set in the same direction. When external air is drawn into the air inlet 101 under the negative pressure of the engine intake, the axial flow of the airflow is converted into spiral flow as it passes through the air inlet 101 duct with the second inner spiral protrusion. This allows the airflow to separate some dust particles at the air inlet 101, thereby reducing the filtration load on the subsequent first filter structure 210 and second filter structure 220.

[0051] In some embodiments, such as Figure 2 and Figure 4 As shown, the airflow guiding assembly 100 includes an air inlet duct 110, which includes a first section 111 and a second section 112, which are connected. The first section 111 extends laterally, and an end plate is provided at one end of the first section 111 in the lateral direction, with multiple air inlets 101 provided on the end plate. The second section 112 extends vertically, and the other end of the first section 111 in the lateral direction is connected to the top of the second section 112, while the bottom end of the second section 112 is connected to the interior of the flow distribution cavity 212.

[0052] External air is drawn into the first section 111 through multiple air inlets 101 on the end plate, flowing laterally. The air then enters the second section 112, where it is guided to flow vertically downwards. Due to the obstruction of the wall in the second section 112, some dust particles in the airflow are unable to change direction due to inertia, resulting in inertial separation at the turning point between the first and second sections 111 and falling to the bottom of the second section 112. The separated air continues downwards along the second section 112, entering the distribution chamber 212 from its bottom and being distributed to various cyclone tubes 214 for further centrifugal separation. Therefore, the bent structure of the laterally extending first section 111 and the vertically extending second section 112 enables inertial separation of dust, further reducing the dust concentration in the airflow entering the distribution chamber 212 and cyclone tubes 214, thus lessening the burden on subsequent cyclone separation and filter element 221.

[0053] In addition, the air intake duct 110 adopts a high-level air intake, which greatly reduces the negative pressure at the air intake, thus making it difficult for rainwater to be sucked into the air intake duct 110 by negative pressure.

[0054] Furthermore, the second section 112 is provided with multiple flow guiding structures 113, each of which protrudes towards the inner side of the second section 112, that is, extends from the inner wall of the second section 112 towards the central axis of the pipe. Each flow guiding structure 113 extends vertically, and the direction of extension of the flow guiding structure 113 is generally consistent with the flow direction of the airflow in the second section 112, such as the up-down direction.

[0055] As the airflow enters the second section 112 from the first section 111 and flows vertically downwards, it passes through the vertically extending guide structure 113. The guide structure 113 guides the airflow within the second section 112. The vertically extending guide structure 113 rectifyes any turbulent airflow that may have occurred after turning through the first section 111, making the vertical flow of the airflow more stable and orderly. Furthermore, the guide structure 113 also provides support to the second section 112, thus preventing deformation caused by airflow impact.

[0056] In some embodiments, such as Figure 2 and Figure 4As shown, the air inlet duct 110 is a rigid structure, and the flow guiding assembly 100 also includes a connecting pipe 120, which is a flexible structure. One end of the connecting pipe 120 is fixedly connected to the bottom of the second section 112 and communicates with the second section 112. The other end of the connecting pipe 120 is fixedly connected to the first housing 211 and communicates with the interior of the diversion chamber 212. In other words, the air inlet duct 110 adopts a rigid structure, thereby providing a stable installation foundation for multiple air inlets 101, end plates, and internal flow guiding structures 113, ensuring the consistency of the orientation of the air inlets 101 and the accuracy of the internal flow channel shape. Furthermore, the inlet of the diversion chamber 212 of the first housing 211 is connected to the rigid air inlet duct 110 through the flexible connecting pipe 120, which can avoid displacement and stress problems between rigid components caused by vehicle vibration and other factors. The flexible connecting tube 120 can absorb and buffer vibrations from the frame and engine, preventing vibrations from being directly transmitted to the air intake duct 110 and the first housing 211, thereby avoiding problems such as housing cracking and interface sealing failure caused by vibration fatigue.

[0057] Optionally, the air inlet duct 110 is made of materials with a certain structural strength, such as metal or rigid engineering plastic. The connecting pipe body 120 can be made of rubber corrugated pipe or fabric-reinforced rubber pipe, and has a certain degree of axial expansion and contraction and radial bending.

[0058] In some embodiments, such as Figure 2 and Figure 4 As shown, a dust discharge port 114 is provided at the bottom of the first segment 111. The flow guiding assembly 100 also includes a dust discharge valve 130, which is located at the dust discharge port 114, and the central axis of the opening of the dust discharge valve 130 extends vertically. It can be understood that the separated particles will converge at the dust discharge port 114 at the bottom of the first segment 111 under the action of gravity. Since the central axis of the opening of the dust discharge valve 130 extends vertically, the discharge direction of the particles is roughly consistent with the direction of gravity, which is conducive to the smooth downward discharge of dust deposited at the dust discharge port 114, and will not cause accumulation dead corners or blockages due to the inclined discharge direction.

[0059] In some embodiments, the vehicle of this invention includes a vehicle body, a turbocharger, an intake filter, and an intake pipe. The turbocharger is disposed in the vehicle body and is used to compress air entering the engine to increase the engine's intake air density and power output. The intake filter is any of the intake filter devices described above, and is disposed in the vehicle body, for example, fixed to the rear of the driver's cab of the vehicle frame by a bracket or mounting bracket, or integrated into the vehicle's intake system compartment. The intake pipe connects the turbocharger and the intake filter. One end of the intake pipe is sealed to the outlet of the intake filter, and the other end of the intake pipe is sealed to the intake port of the turbocharger, thereby forming an intake passage from the intake filter to the turbocharger and then to the engine.

[0060] In the vehicle of this embodiment, the air intake filter utilizes the swirling separation effect of the first filter structure 210 to separate some of the larger particles in the airflow. This reduces the filtration load on the filter element 221 in the second filter structure 220, preventing air filter failure caused by rapid clogging of the filter element 221 under harsh operating conditions. This ensures that the air intake filter can continuously output sufficient and clean air, stabilizing engine power output and preventing serious engine malfunctions such as cylinder scoring and turbocharger oil leakage caused by insufficient air intake and filter element 221 failure.

[0061] The vehicle assembly method of the present invention is described below with reference to the accompanying drawings.

[0062] like Figure 7 As shown, the vehicle assembly method of this invention is applied to the vehicle in the above embodiments, and the assembly method includes the following steps:

[0063] The system obtains information on the turbocharger's mounting location on the vehicle body and the structural parameters of the intake filter. The turbocharger's mounting location information on the vehicle body can include its spatial coordinates, the orientation of its air intake, and its height. This information can be obtained through vehicle design drawings, a 3D digital model, or on-site measurements. The intake filter's structural parameters can include its external dimensions, the size and orientation of its air outlet, and its intended mounting location on the vehicle body.

[0064] The structural parameters of the intake pipe are determined based on the installation location information and the structural parameters of the intake filter. In other words, the required length, bending angle, routing path, and interface types and specifications at both ends of the intake pipe are determined according to the relative spatial relationship between the turbocharger inlet and the intake filter outlet. Based on this, an intake filter product is selected from standardized products that matches the determined intake pipe structural parameters in terms of outlet interface direction, installation method, and other parameters, ensuring that the intake pipe is compatible with both the turbocharger and the intake filter.

[0065] The intake pipe is installed between the turbocharger's intake port and the intake filter's outlet. After the intake filter and turbocharger are fixedly installed in their respective predetermined positions on the vehicle body, one end of the intake pipe is securely connected to the turbocharger's intake port using clamps, flanges, or other sealing methods. The other end of the intake pipe is similarly sealed and securely connected to the intake filter's outlet, thus forming a continuous and sealed intake path from the intake filter to the turbocharger.

[0066] The vehicle assembly method of this invention determines the structural parameters of the intake pipe based on the actual installation position of the turbocharger and the structural parameters of the intake filter, and selects a suitable intake filter based on the structural parameters of the intake pipe. This ensures precise matching and reliable sealing between the intake pipe and the turbocharger inlet and the intake filter outlet, thereby guaranteeing the airtightness of the entire intake system and preventing unpurified dusty air from entering the engine through interface gaps. This provides the necessary conditions for stable engine operation under harsh conditions.

[0067] The intake filter device, vehicle, and assembly method of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An intake filter device for a vehicle, characterized by, include: A flow guide assembly (100) having an air inlet (101) for introducing external air; A filter assembly (200) includes a first filter structure (210) and a second filter structure (220); the first filter structure (210) is connected to the flow guide assembly (100), and the first filter structure (210) is configured to cause the airflow flowing through it to form a swirling flow to separate particles in the airflow; a communication structure is connected between the downstream end of the first filter structure (210) and the upstream end of the second filter structure (220); an air outlet is provided at the downstream end of the second filter structure (220), and a filter element (221) is provided inside the second filter structure (220), and the filter element (221) is located between the upstream end of the second filter structure (220) and the air outlet.

2. The intake filtering device for a vehicle according to claim 1, characterized by, The first filter structure (210) includes: A first housing (211) has a flow-diverting cavity (212) and a receiving cavity (213) inside, the receiving cavity (213) being spaced apart from the flow-diverting cavity (212); the flow-diverting cavity (212) is connected to the flow-guiding assembly (100); one end of the connecting structure is connected to the interior of the receiving cavity (213), and the other end of the connecting structure is connected to the upstream end of the second filter structure (220); Multiple swirling tubes (214) are disposed within the first housing (211) and spaced apart. The inlet end of each swirling tube (214) is disposed within the flow-dividing cavity (212), and the outlet end of each swirling tube (214) is disposed within the receiving cavity (213). The inner wall surface of each swirling tube (214) is provided with a first inner spiral protrusion.

3. The intake filter arrangement for a vehicle according to claim 2, characterized in that, The diversion cavity (212) is located at the top of the receiving cavity (213); one end of the connecting structure is spaced apart from the bottom wall of the receiving cavity (213).

4. The intake filtering device for a vehicle according to claim 2, characterized by, There are multiple air inlets (101), which are arranged in an array and extend in the same direction; each air inlet (101) has a second inner spiral protrusion on its inner wall surface.

5. The intake filtering device for a vehicle according to claim 4, characterized by, The flow guiding assembly (100) includes an air inlet duct (110), which includes a first section (111) and a second section (112), and the first section (111) and the second section (112) are connected. The first section (111) extends laterally, and an end plate is provided at one end of the first section (111) in the lateral direction. A plurality of air inlets (101) are provided on the end plate. The second section (112) extends vertically, and the other end of the first section (111) in the lateral direction is connected to the top end of the second section (112). The bottom end of the second section (112) is connected to the interior of the diversion cavity (212).

6. The intake filtering device for a vehicle according to claim 5, characterized by, The second segment (112) is provided with a plurality of flow guiding structures (113), each of the flow guiding structures (113) protruding toward the inner side of the second segment (112); each of the flow guiding structures (113) extends vertically.

7. The air intake filter for a vehicle according to claim 6, characterized in that, The air inlet duct (110) is a rigid structure; The flow guiding assembly (100) further includes a connecting tube (120), which is a flexible structure; one end of the connecting tube (120) is fixedly connected to the bottom of the second segment (112), and the connecting tube (120) communicates with the second segment (112); the other end of the connecting tube (120) is fixedly connected to the first housing (211), and the connecting tube (120) communicates with the interior of the diversion cavity (212).

8. The intake filtering device for a vehicle according to claim 5, characterized by, The bottom of the first segment (111) is provided with a dust discharge port (114); The flow guiding assembly (100) also includes a dust discharge valve (130), which is disposed at the dust discharge port (114); the central axis of the opening of the dust discharge valve (130) extends along the vertical direction.

9. A vehicle characterized by comprising: include: Vehicle body; A supercharger, the supercharger being disposed on the vehicle body; An air intake filter device, wherein the air intake filter device is any one of claims 1-8; the air intake filter device is disposed on the vehicle body; An intake pipe, which connects the turbocharger and the intake filter.

10. A vehicle assembly method characterized by, Applied to the vehicle of claim 9, the assembly method includes: Obtain information on the installation location of the engine turbocharger on the vehicle body and the structural parameters of the air intake filter device; The structural parameters of the air intake pipe are determined based on the installation location information and the structural parameters of the air intake filter device. The intake pipe is installed between the intake port of the turbocharger and the outlet of the intake filter.

Images