Engine intake mechanism and vehicle

Abstract

The embodiment of the application relates to the technical field of vehicles, and discloses an engine air intake mechanism and a vehicle. The engine air intake mechanism comprises a mounting frame, an air inlet pipe arranged on the mounting frame and used for air feeding of an engine of the vehicle, and a wind guide assembly arranged on the front side of the mounting frame. The wind guide assembly comprises a top wind guide part arranged at the front end of the air inlet pipe, and at least part of the structure of the top wind guide part shields the top area of the air inlet pipe. The wind guide assembly further comprises a plurality of side wind guide parts, and the plurality of side wind guide parts are respectively arranged on the two sides of the air inlet pipe along the left-right direction of the vehicle. A front bumper assembly is arranged on the front side of the wind guide assembly, and the front bumper assembly, the mounting frame, the top wind guide part and the side wind guide parts on the two sides of the air inlet pipe jointly enclose an air inlet space. The air inlet space is in communication with the air inlet pipe. The engine air intake mechanism of the application shields the top area of the air inlet pipe through at least part of the structure of the top wind guide part, so that rainwater is prevented from falling to the mouth of the air inlet pipe.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to an engine intake mechanism and a vehicle. Background Technology

[0002] Vehicles with engines include an intake manifold, the opening of which is located at the front of the vehicle. The intake manifold is connected to the engine's intake manifold via a pipe. The engine obtains the air needed for fuel combustion from the outside through the intake manifold.

[0003] In the prior art, the air intake pipe is located in the engine compartment at the front of the vehicle, the engine compartment has a hood, and there is a certain gap between the hood and the front bumper assembly of the vehicle.

[0004] When a vehicle is driven in the rain, the aforementioned existing technology is prone to the problem of rainwater entering the air intake pipe through the gap between the hood and the front bumper assembly. Utility Model Content

[0005] In view of this, embodiments of this application provide an engine intake mechanism and a vehicle to solve the problem in the prior art where rainwater easily enters the intake pipe through the gap between the hood and the front bumper assembly of the vehicle.

[0006] On one hand, this application provides an engine intake mechanism, including: a mounting bracket; an intake pipe disposed on the mounting bracket for supplying air to the engine of a vehicle; and an air guide assembly disposed on the front side of the mounting bracket, the air guide assembly including: a top air guide disposed at the front end of the intake pipe, and at least a portion of the structure of the top air guide obscuring the top area of ​​the intake pipe; multiple side air guides, the multiple side air guides being respectively located on both sides of the intake pipe along the left-right direction of the vehicle; and a front bumper assembly disposed on the front side of the air guide assembly, the front bumper assembly, the mounting bracket, the top air guide, and the side air guides on both sides of the intake pipe together forming an intake space, the intake space being connected to the intake pipe.

[0007] In some embodiments, the top air guide is formed as a ring around the periphery of the air intake pipe, and the top air guide defines an air guide channel that connects the air intake pipe and the air intake space respectively.

[0008] In some embodiments, the distance between the front safety assembly and the front end of the top air guide is 0-5 cm.

[0009] In some embodiments, the front safety assembly contacts the front end of the top air guide, which has an clearance notch connecting the air guide channel and the air intake space.

[0010] In some embodiments, the top air guide includes a first side plate located above the air intake pipe and a second side plate located below the air intake pipe, the first side plate contacting the front bumper assembly; the clearance notch is formed in the second side plate.

[0011] In some embodiments, the projections of the air intake pipe and the clearance notch in the left-right direction of the vehicle are at least partially offset.

[0012] In some embodiments, the top air guide extends to the two side air guides at both ends along the left-right direction of the vehicle, and the air intake pipe and the clearance notch are located on both sides of the centerline of the top air guide along the left-right direction of the vehicle.

[0013] In some embodiments, the engine intake mechanism further includes a front bumper beam located behind the front bumper assembly, wherein the distance between the front end face of the top air guide and the front end face of the front bumper beam in the vehicle longitudinal direction is 0-10 cm.

[0014] In some embodiments, along the vehicle height direction, the top wall of the top air guide is lower than the top wall of the air intake pipe, and at least a portion of the structure of the air intake pipe extends obliquely downward to connect with the top air guide.

[0015] On the other hand, this application provides a vehicle including the engine intake mechanism described above.

[0016] The engine intake mechanism and vehicle provided in this application solve the problem in existing technologies where rainwater easily enters the intake pipe through the gap between the hood and the front bumper assembly by installing a top air guide at the front end of the intake pipe. This top air guide, with at least a portion of its structure, shields the top area of ​​the intake pipe, preventing rainwater from dripping onto the intake pipe opening. The application further addresses this issue by creating an intake space enclosed by the front bumper assembly, mounting bracket, top air guide, and two side air guides. This intake space facilitates airflow guidance and collection, while also protecting against water and foreign objects being sucked into the intake pipe. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the engine intake mechanism provided in an embodiment of the present utility model;

[0018] Figure 2 This is a top view of the engine intake mechanism provided in this embodiment of the utility model;

[0019] Figure 3 yes Figure 2 A cross-sectional view of AA;

[0020] Figure 4 yes Figure 1A schematic diagram of the top air guide component in the middle;

[0021] Figure 5 yes Figure 4 A front view diagram.

[0022] It should be noted that, Figure 2 and Figure 1 The difference is that, Figure 1 Demolished Figure 2 The front fuse assembly.

[0023] Figure label:

[0024] 100 - Mounting bracket;

[0025] 200 - Intake pipe;

[0026] 300 - Air guide assembly; 310 - Top air guide; 310a - Air guide channel; 310b - Clearance notch; 311 - First side plate; 311a - First baffle; 312 - Second side plate; 312a - Second baffle; 313 - Ear plate; 320 - Side air guide;

[0027] 400 - Front Fuse Assembly;

[0028] 500 - Intake space;

[0029] 600 - Front bumper beam;

[0030] 700-Radiator. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0032] In the embodiments of this application, 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0033] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0034] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0035] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0036] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0037] Vehicles with engines include an intake manifold with its opening located at the front of the vehicle. The intake manifold is connected to the engine's intake manifold via a pipe. The engine obtains the air needed for fuel combustion from the outside through the intake manifold. For example, an air filter is provided on the pipe connecting the intake manifold and the engine's intake manifold. The air filter is used to filter and clean the air to protect the engine.

[0038] In the prior art, the air intake pipe is located in the engine compartment at the front of the vehicle. The engine compartment has a hood, and there is a gap between the hood and the front bumper assembly. Exemplarily, this gap exists in the height direction of the vehicle, that is, there is an overlap between the front end of the hood and the front bumper assembly. At this overlap, there is a small height difference between the hood and the front bumper assembly, and the gap exists within this height difference. Exemplarily, the main components of the vehicle's front bumper assembly include the bumper skin, the air intake grille, and the headlight openings. It is understood that the bumper skin, the air intake grille, and the headlight openings are all externally visible parts.

[0039] When a vehicle is driven in the rain, the aforementioned existing technology is prone to the problem of rainwater entering the intake manifold through the gap between the hood and the front bumper assembly. Understandably, during vehicle operation, some rainwater, under the influence of gravity, can easily drip through the gap into the intake manifold opening. Since the intake manifold is typically under negative pressure during engine operation, this rainwater dripping into the intake manifold opening can easily be drawn into the engine, potentially causing engine malfunctions in severe cases.

[0040] To address the problem that rainwater can easily enter the air intake pipe through the gap between the hood and the front bumper assembly of the vehicle in existing technologies, this application provides an engine air intake mechanism and a vehicle.

[0041] It should be noted that, in terms of power drive method, the vehicle in this application can be a gasoline vehicle, a natural gas vehicle, a range-extended vehicle, or a hybrid vehicle. Among them, a hybrid vehicle can be a gasoline-gas hybrid vehicle, a gasoline-electric hybrid vehicle, or a natural gas-electric hybrid vehicle.

[0042] Based on its intended use, the vehicle in this application can be a passenger car or a freight car.

[0043] The engine intake mechanism and vehicle provided in this application solve the problem in existing technologies where rainwater easily enters the intake pipe through the gap between the hood and the front bumper assembly by installing a top air guide at the front end of the intake pipe. This top air guide, with at least a portion of its structure, shields the top area of ​​the intake pipe, preventing rainwater from dripping onto the intake pipe opening. The application further addresses this issue by creating an intake space enclosed by the front bumper assembly, mounting bracket, top air guide, and two side air guides. This intake space facilitates airflow guidance and collection, while also protecting against water and foreign objects being sucked into the intake pipe.

[0044] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the vehicle's height direction in the following description refers to the Z-axis direction, where the positive Z-axis direction is upward and the negative Z-axis direction is downward; the vehicle's length direction refers to the X-axis direction, where the positive X-axis direction is forward and the negative X-axis direction is backward; the vehicle's left and right directions refer to the Y-axis direction, where the positive Y-axis direction is to the left and the negative Y-axis direction is to the right.

[0045] Reference Figures 1 to 5 As shown, in one aspect, this application provides an engine intake mechanism, including: a mounting bracket 100, an intake pipe 200, an air guide assembly 300, and a front bumper assembly 400.

[0046] For example, the mounting bracket 100 is located in the engine compartment of the vehicle and can be fastened to the engine compartment by bolts. Alternatively, at least a portion of the structure of the mounting bracket 100 is welded to the engine compartment.

[0047] An intake pipe 200 is mounted on a mounting bracket 100 and is used to supply air to the vehicle's engine. For example, the mounting bracket 100 may have a channel for inserting the intake pipe 200, and the outer wall of the intake pipe 200 may be interference-fitted with the channel to fix the orientation of the intake pipe 200's opening via the mounting bracket 100; alternatively, the intake pipe 200 may be bolted to the mounting bracket 100; or, the intake pipe 200 may be fixed to the mounting bracket 100 with a pipe clamp.

[0048] The air guide assembly 300 is located on the front side of the mounting bracket 100. The air guide assembly 300 includes a top air guide 310 and a side air guide 320.

[0049] The top air guide 310 is located at the front end of the air intake pipe 200. Understandably, the opening of the air intake pipe 200 is located at the front end of the air intake pipe 200. At least a portion of the structure of the top air guide 310 obstructs the top area of ​​the air intake pipe 200.

[0050] There are multiple side air guides 320, which are located on both sides of the air intake pipe 200 along the left and right direction of the vehicle. For example, there are two side air guides 320, one on each side of the air intake pipe 200 along the left and right direction of the vehicle. The front bumper assembly 400 is located on the front side of the air guide assembly 300. The front bumper assembly 400, the mounting bracket 100, the top air guide 310, and the side air guides 320 on both sides of the air intake pipe 200 together enclose the air intake space 500, which is connected to the air intake pipe 200.

[0051] For example, the vehicle has a radiator 700 and a front bumper beam 600. It should be noted that the radiator 700 is used to cool the engine coolant. Since the radiator 700 is a mature technology, its structure and connection to the engine will not be described in detail here. Understandably, the front bumper beam 600 is located behind the bumper skin and the air intake grille.

[0052] Mounting bracket 100 can be arranged around radiator 700 to support and protect radiator 700. Air intake space 500 is located in front of radiator 700, thus utilizing the heat dissipated by radiator 700 to preheat air flowing towards intake pipe 200. Preheating air entering the engine is beneficial for improving engine combustion efficiency. Side air guide 320 can be made of plastic. Side air guide 320 and mounting bracket 100 can be detachably connected via clips, bolts, or plug-in structures. When both side air guide 320 and mounting bracket 100 are metal, they can be welded together. Side air guide 320 has holes for the front bumper beam 600 to pass through, thus improving the stability of the corresponding side air guide 320.

[0053] The top air guide 310 can be made of plastic. The top air guide 310 can be detachably connected to the mounting bracket 100 via bolts, clips, or a plug-in mechanism; for example, the top air guide 310 can be provided with a lug 313, which has holes for threaded bolts, allowing for detachable connection of the top air guide 310 to the mounting bracket 100 via bolts. When both the top air guide 310 and the mounting bracket 100 are made of metal, they can be welded together.

[0054] For example, the top air guide 310 and the side air guide 320 can be an integral structure; or, the top air guide 310 and the side air guide 320 can be detachably connected, for example, by fasteners such as bolts, or by corresponding detachable connections using clips; or, the top air guide 310 and the side air guide 320 are not directly connected to each other, and the top air guide 310 and the side air guide 320 are respectively connected to their corresponding installation positions.

[0055] Understandably, in addition to connecting the air guide assembly 300 to the mounting bracket 100, it can also be wholly or at least partially connected to the corresponding position on the frame or sheet metal of an adjacent vehicle.

[0056] The engine intake mechanism provided in this application solves the problem in the prior art where rainwater easily enters the intake pipe 200 through the gap between the hood and the front bumper assembly. This is achieved by providing a top air guide 310 at the front end of the intake pipe 200. The top air guide 310, with at least a portion of its structure, shields the top area of ​​the intake pipe 200, preventing rainwater from dripping onto the opening of the intake pipe 200. Furthermore, this application uses the front bumper assembly 400, mounting bracket 100, top air guide 310, and two side air guides 320 to jointly enclose an intake space 500. This intake space 500 facilitates the guidance and collection of airflow, and also helps prevent water from entering and foreign objects from being sucked into the intake pipe 200.

[0057] Reference Figure 1 and Figure 4 As shown, in some embodiments, the top air guide 310 is formed as an annulus surrounding the intake pipe 200. For example, the size of the annulus in the left-right direction of the vehicle can be much larger than the size of the opening of the intake pipe 200 in the left-right direction, and the size of the annulus in the vertical direction of the vehicle can be close to the size of the intake pipe 200 in the vertical direction. The top air guide 310 defines an air guide channel 310a that connects the intake pipe 200 and the intake space 500 respectively. The point where the air guide channel 310a and the air intake space 500 connect is called the inlet of the air guide channel 310a. This allows the area of ​​the inlet of the air guide channel 310a to be larger than the area of ​​the inlet of the air intake pipe 200. This creates a pressure difference between the inlet of the air guide channel 310a and the inlet of the air intake pipe 200, resulting in a slightly less suction force at the inlet of the air guide channel 310a compared to the inlet of the air intake pipe 200. This reduces the suction force at the inlet of the air guide channel 310a and prevents water located below the top air guide component 310 from being drawn into the air intake pipe 200. This reduces the possibility of water being drawn into the air intake pipe 200 when the vehicle is wading through water, thus improving the vehicle's wading performance.

[0058] Reference Figure 2 and Figure 3 As shown, in some embodiments, the distance between the front safety assembly 400 and the front end of the top air guide 310 is 0-5cm. For example, this distance can be 0, 1cm, 2cm, 3cm, 4cm, or 5cm. Of course, this application does not limit this, and a reasonable selection within the above range can be made according to actual needs. It is understood that when the distance between the front safety assembly 400 and the front end of the top air guide 310 is 0, the front end of the top air guide 310 abuts against the front safety assembly 400. This facilitates the top air guide 310 in blocking the gap between the top area of ​​the air intake pipe 200 and the front safety assembly 400, preventing water from falling from above the top air guide 310 into the front of the air intake pipe 200 opening, thereby preventing the air intake pipe 200 from drawing in water. It should be noted that when the distance between the current safety assembly 400 and the front end of the top air guide 310 is not zero, although rainwater may still fall into the front of the air intake pipe 200, the top air guide 310 extends the possible water drop position forward by a certain distance, which helps to prevent water from being sucked into the air intake pipe 200.

[0059] Furthermore, when the distance between the front bumper assembly 400 and the front end of the top air guide 310 is not zero, it is difficult for a small amount of rainwater entering the engine compartment to reach the front of the intake pipe 200. This is because the front end of the part of the top air guide 310 used to block the top area of ​​the intake pipe 200 and the front end of the hood are not on the same vertical plane, making it difficult for rainwater to fall into the front of the intake pipe 200 under the action of gravity.

[0060] For example, the front end of the portion of the top area of ​​the air intake pipe 200 that blocks the top area of ​​the air intake pipe 200 can be offset from the front end of the hood in the front-rear direction. For instance, the front end of the portion of the top air guide 310 used to block the top area of ​​the air intake pipe 200 can be placed on the front side of the front end of the hood, or even the front end of the top air guide 310 can be placed on the front side of the front end of the hood. In this way, when the vehicle is in motion, rainwater is almost impossible to reach the front of the opening of the air intake pipe 200.

[0061] When the distance between the front end of the current fuse assembly 400 and the top air guide 310 is not 0 and is not greater than 5cm, it is beneficial to position the opening of the air intake pipe 200 as close as possible to the front of the vehicle, which is conducive to obtaining higher intake air pressure while the vehicle is in motion. Understandably, if it is greater than 5cm, the opening of the air intake pipe 200 needs to be moved backward, which is not conducive to obtaining higher intake air pressure.

[0062] Reference Figure 2 and Figure 3 As shown, the front bumper assembly 400 contacts the front end of the top air guide 310, meaning the distance between the front bumper assembly 400 and the top air guide 310 is zero. This, for example, improves the effect of preventing water from being drawn into the air intake pipe 200. The top air guide 310 has a clearance notch 310b that connects the air guide channel 310a and the air intake space 500. It can be understood that the clearance notch 310b is a form of the "inlet of the air guide channel 310a" described above. Thus, by using the clearance notch 310b as the inlet of the air guide channel 310a, it is beneficial for the airflow to flow as close as possible to the inner wall area of ​​the front bumper assembly 400 to the air guide channel 310a, and to flow within the air guide channel 310a. This helps maintain the "forward-protruding" state of this airflow relative to the front end of the hood, and helps prevent water from being drawn into the engine compartment during this airflow, thereby preventing water from being drawn into the air intake pipe 200.

[0063] For example, the clearance notch 310b can be provided in any area other than the top of the intake pipe 200; for example, it can be provided below the intake pipe 200 and in the same orientation as the intake pipe 200 in the left-right direction of the vehicle; or, it can be provided below the intake pipe 200 and offset from the intake pipe 200 in the left-right direction of the vehicle; or, it can be provided above the intake pipe 200 and offset from the intake pipe 200 in the left-right direction of the vehicle.

[0064] Reference Figures 1 to 5 As shown, in some embodiments, the top air guide 310 includes a first side plate 311 located above the air intake pipe 200 and a second side plate 312 located below the air intake pipe 200. The first side plate 311 contacts the front safety assembly 400, thereby sealing the top of the air intake space 500 through the contact between the first side plate 311 and the front safety assembly 400. A clearance notch 310b is formed in the second side plate 312, that is, the clearance notch 310b is located below the air intake pipe 200. In this way, airflow flows upward from the top air guide 310 into the air guide channel 310a, so that water or foreign matter (if any) mixed in the airflow falls off under the action of gravity and is prevented from being sucked into the air guide channel 310a, and thus prevented from being sucked into the air intake pipe 200. Furthermore, when the air intake space 500 is located in front of the vehicle's radiator 700, the radiator 700 can heat and dry the airflow before it enters the air duct 310a, which helps to prevent liquid water from entering the air duct 310a and thus prevent liquid water from being sucked into the air intake pipe 200.

[0065] Understandably, the aforementioned air guide channel 310a is opposite to the front bumper assembly 400. It should be noted that the portion of the front bumper assembly 400 opposite the air guide channel 310a in the front-rear direction is an airtight structure, such as a solid protective panel, to prevent water from splashing directly into the air guide channel 310a from the front side during rainfall or wading. For example, the air intake vents of the front bumper assembly 400's air intake grille are located below the air guide channel 310a, or in other words, in the area below the second side panel 312.

[0066] For example, along the length of the vehicle, the upper surface of the second side panel 312 can be set to be lower in the front and higher in the rear. In this way, if there are water droplets on the second side panel 312, the water droplets will flow down the second side panel 312 under their own weight, thus avoiding the accumulation of water droplets.

[0067] In some embodiments, the projections of the air intake 200 and the clearance notch 310b in the left-right direction of the vehicle are at least partially offset. This facilitates increasing the flow path of the airflow in the left-right direction within the air guide duct 310a, and even if a small amount of water droplets enters the air guide duct 310a, they can evaporate during their long flow in the air guide duct 310a, preventing them from being sucked into the air intake 200.

[0068] Reference Figures 1 to 5As shown, in some embodiments, the top air guide 310 extends to both ends of the two side air guides 320 along the left-right direction of the vehicle. Thus, the air intake space 500 has a shape with the upper, left, and right sides shielded and protected. This shape facilitates the collection of a larger air volume in the air intake space 500 to ensure the air intake volume of the air intake pipe 200. The air intake pipe 200 and the clearance notch 310b are located on both sides of the centerline of the top air guide 310 along the left-right direction of the vehicle. This significantly increases the airflow path in the air guide channel 310a. When a small amount of water enters the air guide channel 310a through the clearance notch 310b, this water is evaporated as it flows through the air guide channel 310a, preventing it from entering the air intake pipe 200.

[0069] Reference Figure 4 and Figure 5 As shown, furthermore, multiple second deflector strips 312a can be provided on the upper surface of the second side plate 312. The second deflector strips 312a extend along the front-rear direction of the vehicle, and each second deflector strip 312a is spaced apart along the left-right direction of the vehicle. When the air intake pipe 200 and the clearance notch 310b are staggered in the left-right direction of the vehicle, the second deflector strips 312a can block water droplets falling on the second side plate 312 in the left-right direction. This blocking prevents water droplets from flowing towards the side where the air intake pipe 200 is located, and further prevents the air intake pipe 200 from sucking in water.

[0070] Furthermore, multiple first deflector strips 311a can be provided on the lower surface of the first side plate 311. The first deflector strips 311a extend along the longitudinal direction of the vehicle, and the first deflector strips 311a are spaced apart along the left and right direction of the vehicle. When the intake pipe 200 and the clearance notch 310b are staggered in the left and right direction of the vehicle, the first deflector strips 311a and the second deflector strips 312a can create turbulence on the airflow passing through the air guide channel 310a. This turbulence facilitates the full evaporation of moisture mixed in the airflow and prevents liquid water from being sucked into the engine.

[0071] Reference Figure 1 As shown, in some embodiments, the engine intake mechanism also includes a front bumper beam 600. It is understood that the front bumper beam 600 is fixed to the vehicle's frame structure to protect the vehicle and its occupants in the event of a potential collision. The front bumper beam 600 is located at the rear of the front bumper assembly 400. The distance between the front end face of the top air guide 310 and the front end face of the front bumper beam 600 in the vehicle's longitudinal direction is 0-10 cm. For example, this distance can be 0, 2 cm, 4 cm, 6 cm, 8 cm, or 10 cm. Of course, this application does not limit this, and a reasonable selection within the above range can be made according to actual needs. In this way, the front bumper beam 600 can provide safety protection for the top air guide 310, reducing the risk of damage to the top air guide 310 in a potential accident.

[0072] It should be noted that the front bumper beam 600 is located below the top air guide 310, and along the height direction of the vehicle, the part of the front bumper assembly 400 near the top air guide 310 (relatively higher) can be relatively recessed from the part near the front bumper beam 600 (relatively lower).

[0073] Understandably, if the front end of the top air guide 310 is more than 10cm from the front end of the front bumper beam 600, it will waste space in the vehicle and cause the top air guide 310 to be too far back, resulting in the air intake pipe 200 being too far back, which is not conducive to making full use of the air pressure caused by the vehicle's movement.

[0074] Reference Figures 1 to 5 As shown, in some embodiments, along the vehicle height direction, the top wall of the top air guide 310 is lower than the top wall of the intake pipe 200, and at least a portion of the structure of the intake pipe 200 extends downwards at an angle to connect with the top air guide 310. Thus, even if a small amount of water droplets are drawn into the intake pipe 200, these droplets can collide with the top wall of the intake pipe 200 under the kinetic energy of the airflow, and flow back to the top air guide 310 under gravity along the top walls of the intake pipe 200 and the top wall of the top air guide 310. Typically, this amount of liquid is very small, even just water mist, and during the aforementioned recirculation process, it is gradually evaporated, avoiding any impact on engine operation.

[0075] Reference Figures 1 to 5 As shown, on the other hand, the vehicle provided in this application includes the aforementioned engine intake mechanism. By incorporating the engine intake mechanism provided in this application, the vehicle provides a way to prevent water from being drawn into the engine during rainy weather or even when wading through water, thus promoting safe and stable engine operation.

[0076] Based on its powertrain method, this vehicle can be classified as a gasoline-powered vehicle, a natural gas-powered vehicle, a range-extended vehicle, or a hybrid vehicle. Hybrid vehicles can be a combination of gasoline and natural gas, a combination of gasoline and electric, or a combination of both.

[0077] Based on its purpose, the vehicle can be either a passenger car or a freight car.

[0078] Most of the aforementioned engine intake mechanism can be located in the engine compartment at the front of the vehicle. The mounting bracket 100 can be secured to the engine compartment with fasteners; alternatively, at least a portion of the mounting bracket 100 can be welded to the engine compartment. A portion of the air guide assembly 300 can be connected to other structural frames or sheet metal in the engine compartment besides the mounting bracket 100.

[0079] For example, the intake pipe 200 is connected to the engine's intake manifold via a conduit to supply air to the engine, providing the oxygen required for fuel combustion. An air filter is installed on the conduit connecting the intake pipe 200 and the engine's intake manifold to filter the air.

[0080] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An engine intake mechanism, characterized in that, include: Mounting bracket (100); An intake pipe (200), provided on the mounting bracket (100), is used to supply air to the vehicle's engine; An air guide assembly (300) is disposed on the front side of the mounting bracket (100), and the air guide assembly (300) includes: A top air guide (310) is provided at the front end of the air intake pipe (200), and at least a portion of the structure of the top air guide (310) covers the top area of ​​the air intake pipe (200). Side air guide (320), there are multiple side air guides (320), and the multiple side air guides (320) are respectively located on both sides of the air intake pipe (200) along the left and right direction of the vehicle; The front safety assembly (400) is located on the front side of the air guide assembly (300). The front safety assembly (400), together with the mounting bracket (100), the top air guide (310), and the side air guides (320) on both sides of the air intake pipe (200), form an air intake space (500). The air intake space (500) is connected to the air intake pipe (200).

2. The engine intake mechanism according to claim 1, characterized in that, The top air guide (310) is formed as an annular shape surrounding the air intake pipe (200), and the top air guide (310) defines an air guide channel (310a) that connects the air intake pipe (200) and the air intake space (500) respectively.

3. The engine intake mechanism according to claim 2, characterized in that, The distance between the front end of the front safety assembly (400) and the front end of the top air guide (310) is 0-5cm.

4. The engine intake mechanism according to claim 3, characterized in that, The front safety assembly (400) contacts the front end of the top air guide (310). The top air guide (310) has an clearance notch (310b) that connects the air guide channel (310a) and the air intake space (500).

5. The engine intake mechanism according to claim 4, characterized in that, The top air guide (310) includes a first side plate (311) located on the upper side of the air intake pipe (200) and a second side plate (312) located on the lower side of the air intake pipe (200). The first side panel (311) contacts the front bumper assembly (400); The clearance notch (310b) is provided on the second side plate (312).

6. The engine intake mechanism according to claim 5, characterized in that, The air intake pipe (200) and the clearance notch (310b) are at least partially offset in their projections in the left-right direction of the vehicle.

7. The engine intake mechanism according to claim 6, characterized in that, The top air guide (310) extends from both ends along the left-right direction of the vehicle to the two side air guides (320), The air intake pipe (200) and the clearance notch (310b) are located on both sides of the centerline of the top air guide (310) along the left-right direction of the vehicle.

8. The engine intake mechanism according to claim 1, characterized in that, Also includes: A front bumper beam (600) is located on the rear side of the front bumper assembly (400), and the distance between the front end face of the top air guide (310) and the front end face of the front bumper beam (600) in the vehicle front-rear direction is 0-10cm.

9. The engine intake mechanism according to claim 2, characterized in that, Along the vehicle height direction, the top wall of the top air guide (310) is lower than the top wall of the air intake pipe (200), and at least a portion of the structure of the air intake pipe (200) extends obliquely downward to connect with the top air guide (310).

10. A vehicle, characterized in that, The engine intake mechanism includes any one of claims 1-9.

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