Air inlet structure of vehicle engine air filter system and vehicle comprising same

Abstract

This invention provides an air intake structure for a vehicle engine air filter system and a vehicle including the air intake structure. The vehicle includes a cooling module air guide shroud and an engine air filter system. The air intake structure includes an air chamber, an air inlet, and an air outlet. The air chamber is hermetically sealed on the vehicle and located at the front of the engine air filter system, above the cooling module air guide shroud. The air inlet penetrates the wall of the air chamber and communicates with the air outlet of the cooling module air guide shroud. The air outlet penetrates the wall of the air chamber and communicates with the air inlet of the engine air filter system. The air inlet and air outlet are configured such that the airflow changes direction at least once during its flow from the air inlet to the air outlet. This invention can improve the problem of snowflakes easily entering existing vehicle engine air filter systems.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to an air intake structure for a vehicle engine air filter system and a vehicle including the air intake structure. Background Technology

[0002] Currently, in most mainstream vehicles, outside air enters through the grille during operation. After being guided by the cooling module's air duct, a portion of the airflow flows through the cooling module and fan into the engine compartment, while the remaining airflow passes through the cooling module's air duct outlet and the engine air filter system's intake before entering the engine. In winter, snowfall easily allows snowflakes to enter the air filter system's intake. These snowflakes, after entering the air filter system, are filtered by the filter element and accumulate inside the air filter. This not only clogs the filter element but also increases intake system resistance, reduces airflow, and consequently, causes insufficient engine air intake and reduced power. Therefore, there is a need for a new air intake structure for a vehicle's engine air filter system and a vehicle incorporating such a structure to address these issues. Utility Model Content

[0003] This invention provides an air intake structure for a vehicle engine air filter system and a vehicle including the air intake structure, in order to improve the problem of snowflakes easily entering the existing vehicle engine air filter system.

[0004] To achieve the above and other related objectives, the first aspect of this utility model provides an air intake structure for a vehicle engine air filter system. The vehicle includes a cooling module air guide shroud and an engine air filter system. The air intake structure includes an air chamber, an air inlet, and an air outlet. The air chamber is hermetically sealed on the vehicle and located at the front of the engine air filter system, above the cooling module air guide shroud. The air inlet penetrates the wall of the air chamber and communicates with the air outlet of the cooling module air guide shroud. The air outlet penetrates the wall of the air chamber and communicates with the air inlet of the engine air filter system. The air inlet and the air outlet are configured such that the airflow undergoes at least one directional change during its flow from the air inlet to the air outlet. By setting an air chamber at the front of the vehicle engine air filter system, above the cooling module air shroud, and ensuring that the airflow changes direction at least once after entering the air chamber before reaching the air intake of the engine air filter system, the probability of snowflakes directly entering the engine air filter system can be reduced. Furthermore, larger dust particles and other impurities in the air will collide with the walls of the air chamber and slide off due to their high inertia during the change of direction. This allows for pre-filtration of large dust particles before the air enters the air intake of the engine air filter system, thus extending the life of the air filter element and improving the overall filtration effect.

[0005] In one embodiment of the air intake structure of this utility model, the through-direction of the air intake is different from that of the air outlet. By setting different through-directions for the air intake and the air outlet, it can be ensured that the airflow changes direction at least once during its flow from the air intake to the air outlet. Therefore, snowflakes and large particles can be detached from the airflow due to inertia during the direction change, which can reduce the probability of snowflakes or impurities directly entering the engine air filter system.

[0006] In one embodiment of the air intake structure of this utility model, the air inlet and the air outlet are spaced apart on the wall of the air chamber along the width direction of the vehicle. By spaced the air inlet and the air outlet along the width direction of the vehicle, it is ensured that the airflow undergoes at least one change of direction during its flow from the air inlet to the air outlet. Therefore, snowflakes and large particles can be detached from the airflow due to inertia during the change of direction, reducing the probability of snowflakes or impurities directly entering the engine air filter system. Furthermore, this design effectively utilizes the space of the air chamber in the width direction of the vehicle, providing good structural support for extending the path from the air inlet to the air outlet.

[0007] In one embodiment of the air intake structure of this utility model, the air inlet penetrates the bottom wall of the air cavity vertically, and the air outlet penetrates the wall of the air cavity near the vehicle engine air filter system horizontally. By setting the air inlet to penetrate the wall of the air cavity vertically, the force of gravity is completely opposite to the velocity of snowflakes and impurities passing through the air inlet, effectively reducing the kinetic energy of snowflakes or impurities entering the air cavity and facilitating their settling within the air cavity. Furthermore, by setting the air outlet horizontally, the airflow initially flows vertically upwards after entering through the air inlet and then turns horizontally. This change in airflow direction further allows snowflakes or impurities to escape from the airflow path and be trapped within the air cavity.

[0008] In one embodiment of the air inlet structure of this utility model, the bottom wall of the air outlet is higher than the bottom wall of the air chamber. This higher bottom wall of the air outlet creates a stepped platform between the two. When snowflakes are deposited in the air chamber, this platform can block the snowflakes or impurities, reducing the probability of snowflakes or impurities entering the air inlet of the air filter system from the air outlet.

[0009] In one embodiment of the air inlet structure of this utility model, the minimum distance between the air inlet and the air outlet should be greater than or equal to 20mm. By limiting the minimum distance between the air inlet and the air outlet, the path length of snowflakes or impurities between the air inlet and the air outlet can be sufficiently guaranteed, which can increase the interception efficiency of snowflakes or impurities and avoid the airflow short-circuiting caused by the air inlet and the air outlet being too close, allowing snowflakes to directly enter the air inlet with the airflow.

[0010] In one embodiment of the air intake structure of this utility model, there are two air inlets and two air outlets, and the air inlets and air outlets are connected in a one-to-one correspondence. There is one air outlet, which is located in the middle of the vehicle, and the two air inlets are located on both sides of the air outlet.

[0011] The beneficial effects of this scheme are as follows: This arrangement can effectively utilize the volume of the air chamber, and the components of the airflow velocity from the two air inlets to the air outlets are opposite in the vehicle width direction, which can form a collision zone at the point where the two airflows meet. This can increase the turbulence in the air chamber, which is beneficial for snowflakes or impurities to leave the main airflow path in the collision zone and be trapped in the air chamber.

[0012] In one embodiment of the air inlet structure of this utility model, the two air inlets are symmetrically distributed about the center of the air outlet.

[0013] The beneficial effects of this scheme are as follows: the two air inlets are symmetrically distributed about the center of the air outlet. When the airflow velocity entering the two air inlets is the same, the components of the airflow velocity flowing from the two air inlets to the air outlet in the vehicle width direction are opposite in direction and equal in magnitude. This can weaken the kinetic energy of snowflakes or impurities as much as possible at the point where the two airflows meet, which is conducive to snowflakes or impurities leaving the main airflow path in the collision zone and being trapped in the air cavity.

[0014] In one embodiment of the air intake structure of this utility model, the vehicle further includes an upper engine compartment guard plate, a ring-shaped light, a front light holder, and two sealing parts. The cooling module air guide shroud, the upper engine compartment guard plate, the housing of the ring-shaped light, and the front light holder together form a cavity extending along the width direction of the vehicle. The two sealing parts seal and separate the cavity along the width direction of the vehicle, and form a chamber between them. The air chamber is the chamber.

[0015] The beneficial effects of this scheme are as follows: This arrangement can effectively utilize the vehicle's own structure without the need for additional air chambers. On the one hand, the structure is more compact, and the air chamber is shielded by the ring light, resulting in a better appearance. On the other hand, the air chamber is positioned close to the housing of the ring light, which is conducive to airflow cooling the ring light and also facilitates the melting and expulsion of snowflakes through the heat of the ring light.

[0016] In one embodiment of the air intake structure of this utility model, the sealing part is made of PU polyurethane foam, and the sealing part is sealed and bonded to the cooling module air guide cover, the upper protective plate of the nacelle, the housing of the ring lamp and the front lamp holder.

[0017] The beneficial effects of this solution are as follows: PU polyurethane foam has excellent elasticity and softness, and good shock absorption properties, which can reduce vibration and noise. Furthermore, polyurethane foam has good chemical stability, is not easily corroded or damaged, and can reduce its environmental impact through recycling or biodegradation.

[0018] In one embodiment of the air intake structure of this utility model, the vehicle includes a ring-shaped lamp, and one side wall of the air cavity is the housing of the ring-shaped lamp.

[0019] The beneficial effects of this scheme are: the air cavity is positioned close to the housing of the ring lamp, which on the one hand facilitates the airflow to cool the ring lamp, and on the other hand, the heat emitted by the ring lamp can be used to melt the snowflakes.

[0020] In one embodiment of the air intake structure of this utility model, the air outlet is detachably connected to the air intake of the engine air filter system; and / or, the air intake is detachably connected to the air outlet of the cooling module air guide shroud.

[0021] The beneficial effect of this scheme is that this setting facilitates the installation and disassembly of the air chamber.

[0022] In one embodiment of the air intake structure of this utility model, the width of the air cavity along the length direction of the vehicle is 15mm~25mm.

[0023] The advantages of this solution are: this design not only ensures that the air chamber has sufficient width along the length of the vehicle to prevent snowflakes from accumulating in the air chamber and blocking the air outlet, but also within this size range, it can meet the gap between the existing vehicle ring light and the ring light bracket without increasing the length of the vehicle body.

[0024] In one embodiment of the air intake structure of this utility model, the material of the cooling module air guide cover is PP+GF10 material, and the material of the front lamp holder is PP+GF40.

[0025] The beneficial effects of this solution are as follows: PP+GF10 is a composite material composed of polypropylene (PP) and 10% glass fiber (GF). This material possesses excellent physical properties, mechanical properties, heat resistance, and appearance. PP+GF40 is a 40% glass fiber reinforced polypropylene material. It exhibits extremely high strength, stiffness, and heat resistance, while also possessing good wear resistance, impact resistance, and corrosion resistance.

[0026] In one embodiment of the air inlet structure of this utility model, an intercepting baffle is provided in the air duct between the air inlet and the air outlet. The baffle is located at the bottom of the air cavity and partially blocks the air duct between the air inlet and the air outlet.

[0027] A second aspect of this invention is to provide a vehicle comprising the air intake structure described in any of the preceding claims. This vehicle, with its air intake structure, can prevent snowflakes from entering the air filter system, extend the lifespan of the air filter element, and improve the overall filtration efficiency of the vehicle. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the air intake structure of this utility model;

[0030] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the air intake structure of this utility model after removing some parts;

[0031] Figure 3 This is a schematic diagram of the airflow direction on the facade of one embodiment of the air intake structure of this utility model;

[0032] Figure 4 This is a cross-sectional view of the air chamber along the length of the vehicle in one embodiment of the air intake structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the airflow direction on the facade in another embodiment of the air intake structure of this utility model.

[0034] Component designation explanation

[0035] 100. Upper nacelle skid plate; 200. Ring light; 300. Front light holder; 400. Cooling module air duct; 401. Air intake; 402. Air outlet; 500. Sealing part; 600. Air chamber; 601. Air inlet; 602. Air outlet; 700. Engine air filter system; 701. Air inlet. Detailed Implementation

[0036] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0037] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0038] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0039] Please see Figures 1 to 5 This utility model provides an air intake structure for a vehicle engine air filter system 700 and a vehicle including the air intake structure. The air intake structure can improve the problem that snowflakes can easily enter the existing vehicle engine air filter system 700.

[0040] The vehicle includes a cooling module air guide shroud 400 and an engine air filter system 700. The specific structures of the cooling module air guide shroud 400 and the engine air filter system 700 can refer to the corresponding structures on existing vehicles. A cooling air duct is provided between the cooling module air guide shroud 400 and the first-layer cooling module. The cooling air duct has an air intake 401 and an air outlet 402. The air intake structure includes an air chamber 600, an air inlet 601, and an air outlet 602. The air chamber 600 is sealed on the vehicle and is located in front of the engine air filter system 700 (i.e., in front of the vehicle in the direction of travel) and above the cooling module air guide shroud 400. The shape and structure of the air chamber 600 are not limited and can be cylindrical, prismatic, or other irregular shapes. The air chamber 600 can be formed by sealing both ends of the inner cavity of a cylindrical steel tube or a rectangular steel tube, or it can be enclosed by other parts of the vehicle. The air inlet 601 penetrates the wall of the air chamber 600 and connects to the air outlet 402 of the cooling module air guide shroud 400. The shape of the air inlet 601 is not limited; for example, it can be circular, square, or elliptical, but is not limited thereto. Specifically, in this embodiment, the air inlet 601 and the air outlet 402 of the cooling module air guide shroud 400 are rectangular in shape. The air outlet 602 penetrates the wall of the air chamber 600 and connects to the air inlet 701 of the engine air filter system 700. The shape of the air outlet 602 is not limited; for example, it can be circular, square, or elliptical, but is not limited thereto. Specifically, in this embodiment, the air outlet 602 and the air inlet 701 of the engine air filter system 700 are also rectangular in shape. The positions and directions of the air inlet 601 and the air outlet 602 are not limited, as long as they are configured to allow the airflow to change direction at least once during its flow from the air inlet 601 to the air outlet 602.

[0041] By setting an air chamber 600 at the front of the vehicle engine air filter system 700, above the cooling module air guide shroud 400, and configuring the air inlet 601 and air outlet 602 so that the airflow from the air inlet 601 to the air outlet 602 undergoes at least one change of direction, the probability of snowflakes directly entering the engine air filter system 700 can be reduced. Furthermore, larger dust particles and other impurities in the air, due to their high inertia during the change of direction, will collide with the wall of the air chamber 600 and slide off, thus pre-filtering large dust particles before the air enters the air inlet 701 of the engine air filter system 700. Therefore, the life of the air filter element can be extended, and the overall filtration effect can be improved. In addition, compared with the existing engine air filter system 700, the air intake structure of this utility model does not require a separate air guide shroud for the air inlet 701, and can also prevent the engine inlet temperature from becoming too high due to hot air recirculation.

[0042] In this invention, there are various structures that cause the airflow to change direction at least once during its flow from the air inlet 601 to the air outlet 602. Please refer to [link / reference]. Figure 3 In one embodiment of the air intake structure of this utility model, the through direction of the air intake 601 is different from that of the air outlet 602. The air intake 601 and the air outlet 602 are spaced apart on the wall of the air chamber 600 along the width direction of the vehicle (i.e., the extension direction of the X-axis in the figure). By spaced the air intake 601 and the air outlet 602 along the width direction of the vehicle, it can be ensured that the airflow changes direction at least twice during the flow from the air intake 601 to the air outlet 602. Therefore, snowflakes and large particles can be detached from the airflow due to inertia during the direction change, which can reduce the probability of snowflakes or impurities directly entering the engine air filter system 700. Furthermore, this solution can effectively utilize the space of the air chamber 600 in the width direction of the vehicle, providing good structural support for extending the path from the air intake 601 to the air outlet 602.

[0043] In another embodiment of this utility model, with Figure 3 Unlike the previous embodiment, the structure that causes the airflow to change direction at least once during its flow from the air inlet 601 to the air outlet 602 is achieved solely by the different penetration directions of the air inlet 601 and the air outlet 602. The air inlet 601 and the air outlet 602 have no gap along the vehicle width direction, that is, the gap between the center of the air inlet 601 and the center of the air outlet 602 along the vehicle width direction is zero. The air inlet 601 penetrates the wall of the air chamber 600 in the Z direction, and the air outlet 602 penetrates the wall of the air chamber 600 on the side near the engine air filter system 700 in a direction perpendicular to the plane ZOY. As the airflow enters the air inlet 601, its direction is upward along the Z-axis, and then it changes to enter the air inlet 701 of the engine air filter system 700 in a direction perpendicular to the ZOY plane. Although the airflow does not flow horizontally in the air chamber, it changes direction in the vertical plane. It can be seen that by setting different penetration directions for the air inlet 601 and the air outlet 602, it can be ensured that the airflow changes direction at least once during the flow from the air inlet 601 to the air outlet 602. This can cause snowflakes and large particles to detach from the airflow due to inertia during the change of direction, thereby reducing the probability of snowflakes or impurities directly entering the engine air filter system 700.

[0044] In another embodiment of this utility model, with Figure 3Unlike the previous embodiment, the structure that causes the airflow to change direction at least once during its flow from the air inlet 601 to the air outlet 602 is achieved only by having the air inlet 601 and the air outlet 602 spaced apart along the width direction of the vehicle (i.e., the extension direction of the X-axis in the figure). The air inlet 601 has the same penetrating direction as the air outlet 602. For example, the air inlet 601 penetrates the bottom wall of the air chamber 600 vertically, and the air outlet 602 penetrates the top wall of the air chamber 600 vertically. It is connected to the air inlet 701 of the engine air filter system 700 through a bend. The air inlet 601 and the air outlet 602 are spaced apart on the wall of the air chamber 600 along the width direction of the vehicle (i.e., the extension direction of the X-axis in the figure). Those skilled in the art can understand that after the airflow enters the air chamber 600 vertically from the air inlet 601, it will flow horizontally to the air outlet 602, and then be discharged vertically from the air outlet 602. This can also ensure that the airflow changes direction at least twice during the process of flowing from the air inlet 601 to the air outlet 602, which can also reduce the probability of snowflakes or impurities directly entering the engine air filter system 700.

[0045] Please see Figure 3 In one embodiment of the air intake structure of this utility model, the air inlet 601 penetrates the bottom wall of the air cavity 600 vertically, and the air outlet 602 penetrates the wall of the air cavity 600 near the vehicle engine air filter system 700 horizontally. By setting the air inlet 601 to penetrate the wall of the air cavity 600 vertically, the force of gravity is completely opposite to the speed at which snowflakes and impurities pass through the air inlet 601, effectively reducing the kinetic energy of the snowflakes or impurities entering the air cavity 600, which is beneficial for the snowflakes or impurities to settle within the air cavity 600. Furthermore, by setting the air outlet 602 horizontally, the airflow initially flows vertically upward after entering through the air inlet 601, then turns horizontally. This change in airflow direction further allows snowflakes or impurities to escape from the airflow path and be trapped within the air cavity 600.

[0046] Please see Figure 3 and Figure 5In one embodiment of the air intake structure of this utility model, the bottom wall of the air outlet 602 is higher than the bottom wall of the air cavity 600. This higher bottom wall creates a stepped platform between the two. When snowflakes accumulate in the air cavity 600, this platform can block the snowflakes or impurities, reducing the probability of them entering the air intake 701 of the air filter system from the air outlet 602. Preferably, considering vehicle space optimization and the interception effect of the platform, in one embodiment, the bottom wall of the air outlet 602 is 5mm to 10mm higher than the bottom wall of the air cavity 600, for example, any value between 5mm, 8mm, or 10mm. Within this range, snow and dust deposited on the bottom wall of the air cavity can be blocked without significantly increasing the vehicle's height.

[0047] Please see Figure 3 In one embodiment of the air inlet structure of this utility model, the minimum distance M between the air inlet 601 and the air outlet 602 should be greater than or equal to 20mm. By limiting the minimum distance between the air inlet 601 and the air outlet 602, the path length of snowflakes or impurities between the air inlet 601 and the air outlet 602 can be fully guaranteed, which can greatly increase the interception efficiency of snowflakes or impurities and avoid the air inlet 601 and the air outlet 602 being too close, which would cause the airflow to short-circuit and snowflakes to directly enter the air inlet 701 with the airflow.

[0048] Please see Figure 5 In another embodiment of the air intake structure of this utility model, there are two air inlets 601 and two air outlets 402, with each air inlet 601 and air outlet 402 connected in a one-to-one correspondence. There is one air outlet 602, located in the middle of the vehicle, with the two air inlets 601 located on either side of the air outlet 602. This arrangement effectively utilizes the volume of the air cavity 600, and the components of the airflow velocity from the two air inlets 601 to the air outlet 602 are opposite in the vehicle width direction, forming a collision zone at the point where the two airflows meet. This increases the turbulence within the air cavity 600, which helps snowflakes or impurities to escape the main airflow path within the collision zone and be trapped within the air cavity 600.

[0049] In one embodiment of the air intake structure of this utility model, the two air inlets 601 are symmetrically distributed about the center of the air outlet 602. This symmetrical distribution ensures that when the airflow velocities entering through the two air inlets 601 are the same, the components of the airflow velocity flowing from the two air inlets 601 to the air outlet 602 in the vehicle width direction are opposite in direction but equal in magnitude. This can weaken the kinetic energy of snowflakes or impurities as much as possible at the point where the two airflows meet, facilitating their escape from the main airflow path within the collision zone and their containment within the air cavity 600.

[0050] Please see Figure 3 , Figure 4 In one embodiment of the air intake structure of this utility model, the vehicle also includes an upper engine compartment guard plate 100, a ring-shaped light 200, a front light holder 300, and two sealing parts 500. The ring-shaped light 200 extends along the width direction of the vehicle. The cooling module air guide shroud 400, the upper engine compartment guard plate 100, the housing of the ring-shaped light 200, and the front light holder 300 together form a cavity extending along the width direction of the vehicle. The two sealing parts 500 seal and partition the cavity along the width direction of the vehicle, forming a chamber between them. The air chamber 600 is the chamber. This arrangement can effectively utilize the vehicle's own structure, eliminating the need for an additional air chamber 600. On the one hand, the structure is more compact, and the air chamber 600 is shielded by the ring-shaped light 200, resulting in a better appearance. On the other hand, the air chamber 600 is located close to the housing of the ring-shaped light 200, which is beneficial for airflow to cool the ring-shaped light 200 and also facilitates the melting and discharge of snowflakes through the heat of the ring-shaped light 200.

[0051] In one embodiment of the air intake structure of this utility model, the sealing part 500 is made of PU polyurethane foam, and the sealing part 500 is sealed and bonded to the cooling module air guide shroud 400, the upper protective plate 100 of the engine compartment, the housing of the ring light 200, and the front light holder 300. PU polyurethane foam has excellent elasticity and softness, and good shock absorption performance, which can reduce vibration and noise. Furthermore, polyurethane foam has good chemical stability, is not easily corroded or damaged, and can reduce its environmental impact through recycling or biodegradation.

[0052] In another embodiment of the air inlet structure of this utility model, with Figure 3 , Figure 4 Unlike other embodiments, the vehicle includes a ring-shaped light 200. An air chamber 600 is formed by a structure outside the vehicle and the ring-shaped light 200 together. For example, both ends of a channel steel are sealed, and the housing of the ring-shaped light 200 is sealed at the opening of the channel steel, thus forming the air chamber 600. One side wall of the air chamber 600 is the housing of the ring-shaped light 200. Preferably, the ring-shaped light includes a heat sink, and one side wall of the air chamber 600 is the heat sink of the ring-shaped light. The air chamber 600 is located close to the housing of the ring-shaped light 200, and in particular, one side wall of the air chamber 600 is directly set as the heat sink of the ring-shaped light 600. This facilitates airflow to cool the ring-shaped light 200 and allows the heat emitted by the ring-shaped light 200 to melt snowflakes, greatly reducing the probability of snowflakes entering the air filter system.

[0053] It should be noted that in this utility model, only the air outlet 602 is detachably connected to the air inlet 701 of the engine air filter system 700. Alternatively, only the air inlet 601 is detachably connected to the air outlet 402 of the cooling module air guide shroud 400. Both methods can facilitate the installation and removal of the air chamber 600 to a certain extent. However, preferably, in this embodiment, the air outlet 602 is detachably connected to the air inlet 701 of the engine air filter system 700, and the air inlet 601 is also detachably connected to the air outlet 402 of the cooling module air guide shroud 400. This arrangement is more conducive to the installation and removal of the air chamber 600.

[0054] In one embodiment of the air intake structure of this utility model, the width of the air cavity 600 along the length of the vehicle is 15mm to 25mm. This setting not only ensures that the air cavity 600 has sufficient width along the length of the vehicle, preventing snowflakes from accumulating in the air cavity 600 and blocking the air outlet 602, but also, within this size range, it can meet the gap between the existing vehicle ring light 200 and the ring light 200 bracket, without needing to increase the length of the vehicle body.

[0055] In one embodiment of the air intake structure of this utility model, the cooling module air guide shroud 400 is made of PP+GF10 material, and the front lamp holder 300 is made of PP+GF40 material. PP+GF10 material is a composite material composed of polypropylene (PP) and 10% glass fiber (GF). This material has good physical properties, mechanical properties, heat resistance, and appearance. PP+GF40 is a 40% glass fiber reinforced polypropylene material. It has extremely high strength, rigidity, and heat resistance, while also possessing good wear resistance, impact resistance, and corrosion resistance.

[0056] In one embodiment of the air intake structure of this utility model, an intercepting baffle (not shown) is provided in the air duct between the air inlet 601 and the air outlet 602. The intercepting baffle is located at the bottom of the air cavity 600 and partially blocks the air duct between the air inlet 601 and the air outlet 602. This arrangement can intercept snow and increase the probability that deposited snowflakes or dust reach the air outlet 602.

[0057] A second aspect of this invention is to provide a vehicle that includes the air intake structure described above. This vehicle, with its air intake structure, can prevent snowflakes from entering the air filter system, extend the lifespan of the air filter element, and improve the overall filtration effect of the vehicle.

[0058] In this invention, an air chamber is provided at the front of the vehicle engine air filter system, above the cooling module's air guide shroud. The airflow undergoes at least one directional change after entering the air chamber before reaching the engine air filter system's intake. This reduces the probability of snowflakes directly entering the engine air filter system. Furthermore, larger dust particles and other impurities in the air, due to their high inertia during the directional change, will impact and slide off the walls of the air chamber, effectively pre-filtering large dust particles before they enter the engine air filter system's intake. Therefore, this extends the lifespan of the air filter element and improves the overall filtration efficiency. Thus, this invention effectively overcomes some practical problems in the prior art, possessing high utilization value and practical significance.

[0059] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An air intake structure for a vehicle engine air filter system, the vehicle comprising a cooling module air shroud and an engine air filter system, characterized in that, The air intake structure includes: An air chamber is enclosed and installed on the vehicle, located in front of the engine air filter system and above the cooling module air duct. The air inlet penetrates the wall of the air chamber and is connected to the air outlet of the cooling module's air guide shroud. The air outlet penetrates the wall of the air chamber and is connected to the air inlet of the engine air filter system. The air inlet and the air outlet are configured such that the airflow changes direction at least once during its flow from the air inlet to the air outlet.

2. The air inlet structure according to claim 1, characterized in that, The direction of penetration of the air inlet is different from that of the air outlet.

3. The air inlet structure according to claim 1 or 2, characterized in that, The air inlet and the air outlet are spaced apart on the wall of the air chamber along the width direction of the vehicle.

4. The air inlet structure according to claim 1 or 2, characterized in that, The air inlet penetrates the bottom wall of the air chamber vertically, and the air outlet penetrates the wall of the air chamber on the side near the vehicle engine air filter system horizontally.

5. The air inlet structure according to claim 1, characterized in that, The bottom wall of the air outlet is higher than the bottom wall of the air chamber.

6. The air inlet structure according to claim 1, characterized in that, The minimum distance between the air inlet and the air outlet should be greater than or equal to 20mm.

7. The air inlet structure according to claim 1, characterized in that, There are two air inlets and two air outlets, with each air inlet and air outlet connected in a one-to-one correspondence. There is one air outlet, which is located in the middle of the vehicle, and the two air inlets are located on either side of the air outlet.

8. The air inlet structure according to claim 7, characterized in that, The two air inlets are symmetrically distributed about the center of the air outlet.

9. The air inlet structure according to claim 1, characterized in that, The vehicle also includes an upper engine compartment guard plate, a ring light, a front light holder, and two sealing parts. The cooling module air guide shroud, the upper engine compartment guard plate, the housing of the ring light, and the front light holder together form a cavity extending along the width direction of the vehicle. The two sealing parts seal and separate the cavity along the width direction of the vehicle, and form a chamber between them. The air chamber is the chamber.

10. The air inlet structure according to claim 9, characterized in that, The sealing part is made of PU polyurethane foam, and the sealing part is sealed and bonded to the cooling module air guide cover, the upper protective plate of the nacelle, the housing of the ring light and the front light bracket.

11. The air inlet structure according to claim 1, characterized in that, The vehicle includes a ring-shaped light, and one side wall of the air chamber serves as the housing of the ring-shaped light.

12. The air inlet structure according to claim 1, characterized in that, The air outlet is detachably connected to the air inlet of the engine air filter system; and / or, the air inlet is detachably connected to the air outlet of the cooling module air guide shroud.

13. The air inlet structure according to claim 1, characterized in that, The width of the air chamber along the length of the vehicle is 15mm to 25mm.

14. The air inlet structure according to claim 9, characterized in that, The cooling module air guide cover is made of PP+GF10 material, and the front lamp holder is made of PP+GF40 material.

15. A vehicle, characterized in that, Includes the air intake structure as described in any one of claims 1 to 14.

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