Side wall air inlet box structure of passenger car

Abstract

The utility model provides a passenger car side wall air inlet box structure, and belongs to the technical field of passenger car rear engine air inflow. The passenger car side wall air inlet box structure is characterized in that an air inlet grid and an air inlet box are installed at an air inlet of a car body, and the non-waterproof air inlet grid is adopted, so that the air inlet grid does not have the waterproof function any more, the air inlet resistance is reduced, and the air inlet efficiency of the air inlet is improved; the flow guide plate is arranged at the air inlet in the air inlet box, the flow guide channel is formed between the flow guide plate and the air inlet box, on one hand, inlet air can be guided through the flow guide plate, the loss of air inlet efficiency is reduced, on the other hand, the flow guide plate can block straight-through rainwater, a large amount of rainwater is prevented from directly entering an engine system from the air outlet, and the service life of the engine system is prolonged. The waterproof capacity of the air inlet box is improved, the waterproof efficiency of the air inlet box is improved on the premise that the air inlet efficiency is not lost, and therefore the air inlet box structure can meet the requirements of a passenger car engine for the air inlet efficiency and the waterproof effect at the same time in the small air inlet and engine compartment space.

Description

Technical Field

[0001] The present application belongs to the technical field of air intake for rear-mounted engines of buses, and specifically relates to a side air intake box structure for buses. Background Art

[0002] Diesel-powered buses have a long history of development. In the field of bus engine air intake, many air intake forms have been developed, such as side intake, front intake, and top intake. Today, when the rear engine layout of diesel buses has become the mainstream structure, the engine side direct intake has gradually become dominant.

[0003] At present, the development trend of passenger cars is to expand the volume of the car by compressing the space occupied by the engine system; however, when the engine system is compressed, the available space of the engine intake system will also be compressed, resulting in a decrease in the ability of the engine system itself to filter rainwater through air filters, pipes and other structures. To solve this problem, the existing side air intake structure mostly prevents rainwater from entering by adding a waterproof structure outside the air intake box. However, this waterproof structure will increase the resistance of air flow, which has a greater impact on the intake efficiency and affects the actual performance of the engine. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, according to an embodiment of the present application, a passenger car side panel air intake box structure is proposed, comprising:

[0006] An air intake grille, the air intake grille covers the air intake port, and the air intake grille is connected to the vehicle body;

[0007] An air intake box, the air intake box is connected to the vehicle body, and is provided with an air inlet and an air outlet, and the air outlet is connected to the air intake grid through the air inlet;

[0008] The guide plate is arranged inside the air intake box. The inner wall of the air intake box and the guide plate are arranged to form a guide channel to guide the air entering the air intake box from the air inlet.

[0009] In a possible implementation, the guide plate is vertically disposed between the air inlet and the air outlet, and the guide plate can cover the air outlet.

[0010] In a feasible embodiment, there is a gap between the guide plate and the top surface of the air intake box to form a first guide channel on the top of the guide plate; there is a gap between the guide plate and the side of the air intake box to form a second guide channel on both sides of the guide plate.

[0011] In a feasible implementation manner, the passenger car side air intake box structure further includes:

[0012] Two side baffles, which are symmetrically arranged on one side of the guide plate close to the air outlet, and are connected to the inner wall of the air intake box;

[0013] A lower water baffle, which is located below the air outlet, connected to the guide plate, and connected to two side water baffles;

[0014] A drain outlet, the drain outlet penetrates the lower water retaining plate;

[0015] A drain pipe is arranged on the air intake box and is connected with the drain port.

[0016] In a feasible implementation manner, the passenger car side air intake box structure further includes:

[0017] The water retaining platform is arranged on the side water retaining plate, and the water retaining platform makes the width of the second guide channel away from the first guide channel greater than the width of the second guide channel near the first guide channel.

[0018] In a feasible implementation manner, the passenger car side air intake box structure further includes:

[0019] The flow expansion port is arranged on the top of the side water baffle plate, and the flow expansion port is located on the side of the side water baffle plate close to the guide plate.

[0020] In a feasible implementation manner, the guide plate includes:

[0021] The guide part can cover the air outlet, and the guide part protrudes toward the direction close to the air inlet;

[0022] Two slow flow parts are symmetrically arranged at two ends of the guide part.

[0023] In a possible implementation, the air intake grid includes:

[0024] A frame body connected to the vehicle body;

[0025] The grid plate is provided with a plurality of air inlet holes, the grid plate is embedded in the frame, and the grid plate is connected to the frame; a bending portion is provided on the grid plate to form an air inlet groove between the grid plate and the frame.

[0026] In one possible implementation,

[0027] The bent portions are evenly arranged on the grid plate along the length direction of the grid plate, and the bent portions extend along the width direction of the grid plate;

[0028] The bending portion includes a first air inlet portion and a second air inlet portion;

[0029] The first air inlet is arranged at an angle to the plane where the frame is located, and there is a first angle between the first air inlet and the plane where the frame is located; the second air inlet is arranged at an angle to the plane where the frame is located, and there is a second angle between the second air inlet and the plane where the frame is located;

[0030] Wherein, the width of the first air inlet portion is greater than the width of the second air inlet portion, and the second angle is greater than the first angle.

[0031] In a feasible implementation manner, the air inlet is in the shape of an elongated strip, and the air inlet includes:

[0032] A first air inlet hole, which is arranged on the first air inlet portion and is parallel to a length direction of the first air inlet portion;

[0033] The second air inlet hole is arranged on the second air inlet portion, and the second air inlet hole is perpendicular to the first air inlet hole.

[0034] Compared with the prior art, the passenger car side air intake box structure of the present application has the following beneficial effects:

[0035] The passenger car side air intake box structure provided in the embodiment of the present application includes an air intake grille, an air intake box, a guide plate and a water baffle; the air intake grille and the air intake box are installed at the air intake of the vehicle body, and a non-waterproof air intake grille is used so that the air intake grille no longer has a waterproof function, so as to reduce the resistance of air entry, thereby improving the air intake efficiency of the air intake; by setting the guide plate at the air intake inside the air intake box, a guide channel is formed between the guide plate and the air intake box. On the one hand, the guide plate can guide the incoming air to reduce the loss of air intake efficiency. On the other hand, the guide plate can block direct rainwater to prevent a large amount of rainwater from directly entering the engine system from the air outlet, thereby improving the waterproof ability of the air intake box. Under the premise of not losing the air intake efficiency, the waterproof efficiency of the air intake box is improved, so that the air intake box structure can meet the requirements of the passenger car engine for air intake efficiency and waterproof effect in a smaller air intake and engine compartment space. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0037] Figure 1 A schematic structural diagram of a passenger car side air intake box structure from a first angle according to an embodiment of the present application;

[0038] Figure 2A schematic structural diagram of a passenger car side air intake box structure from a second angle according to an embodiment of the present application;

[0039] Figure 3 A schematic structural diagram of an air intake box of a passenger car side air intake box structure at a first angle provided in an embodiment of the present application;

[0040] Figure 4 A schematic structural diagram of an air intake box of a passenger car side panel air intake box structure according to an embodiment of the present application, taken from a second angle;

[0041] Figure 5 A schematic structural diagram of a guide plate of a passenger car side air intake box structure according to an embodiment of the present application;

[0042] Figure 6 A schematic structural diagram of an air intake grille of a passenger car side air intake box structure according to an embodiment of the present application;

[0043] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0044] 10. Car body; 11. Air inlet; 12. Air inlet grille; 13. Air inlet box; 14. Air guide plate; 15. Air inlet; 16. Air outlet; 17. Air guide channel; 18. Side water baffle plate; 19. Lower water baffle plate; 20. Drain outlet; 21. Drain pipe; 22. Water baffle platform; 23. Flow expansion port; 24. Air inlet hole; 25. Bending part; 26. Air inlet groove; 27. First guide angle; 28. Second guide angle;

[0045] 121. frame; 122. grid plate;

[0046] 141. flow guide; 142. slow flow section;

[0047] 171. a first flow guiding channel; 172. a second flow guiding channel;

[0048] 241, first air inlet; 242, second air inlet;

[0049] 251. First air inlet; 252. Second air inlet. DETAILED DESCRIPTION

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0054] like Figure 1 and Figure 2 As shown, according to an embodiment of the present application, a passenger car side air intake box structure is proposed, including: an air intake grille 12, an air intake box 13 and a guide plate 14; the air intake grille 12 covers the air inlet 11, and the air intake grille 12 is connected to the vehicle body 10; the air intake box 13 is connected to the vehicle body 10, and an air inlet 15 and an air outlet 16 are provided on the air intake box 13, and the air outlet 16 is connected to the air intake grille 12 through the air inlet 15; the guide plate 14 is arranged inside the air intake box 13, and the inner wall of the air intake box 13 and the guide plate 14 are surrounded by a guide channel 17 to guide the air entering the air intake box 13 from the air inlet 15.

[0055] The passenger car side air intake box structure provided in the embodiment of the present application includes an air intake grille 12, an air intake box 13 and a guide plate 14; the air intake grille 12 and the air intake box 13 are installed at the air intake port 11 of the vehicle body 10, and a non-waterproof air intake grille 12 is used so that the air intake grille 12 no longer has a waterproof function, so as to reduce the resistance of air entering, thereby improving the air intake efficiency of the air intake port 11; by arranging the guide plate 14 at the air intake port 11 inside the air intake box 13, a guide channel 1 is formed between the guide plate 14 and the air intake box 13. 7. On the one hand, the guide plate 14 can guide the incoming air to reduce the loss of intake efficiency. On the other hand, the guide plate 14 can block direct rainwater to prevent a large amount of rainwater from directly entering the engine system from the air outlet 16, thereby improving the waterproof ability of the air intake box 13. Under the premise of not losing the intake efficiency, the waterproof efficiency of the air intake box 13 is improved, so that the air intake box structure can meet the requirements of the bus engine for intake efficiency and waterproof effect in the smaller air inlet 11 and engine compartment space.

[0056] It is understandable that the arrangement of the guide plate 14 inside the air intake box 13 can improve the structural strength of the air intake box 13, reduce airflow resonance, and improve NVH performance. The air outlet 16 of the air intake box 13 is connected to the engine system to supply air to the engine system using the air intake box structure. Since the air intake efficiency of the air intake box structure is improved, the air intake demand of the bus engine can be met through the smaller air intake port 11 of the vehicle body 10.

[0057] like Figure 3 As shown, in a possible implementation manner, the guide plate 14 is vertically disposed between the air inlet 15 and the air outlet 16 , and the guide plate 14 can cover the air outlet 16 .

[0058] In this technical solution, the guide plate 14 is arranged between the air inlet 15 and the air outlet 16, and the guide plate 14 completely covers the air outlet 16 to ensure the blocking effect of the guide plate 14 on direct rainwater, thereby improving the waterproof ability and waterproof effect of the air intake box structure.

[0059] like Figure 4 As shown, in a feasible embodiment, there is a gap between the guide plate 14 and the top surface of the air intake box 13 to form a first guide channel 171 on the top of the guide plate 14; there is a gap between the guide plate 14 and the side of the air intake box 13 to form a second guide channel 172 on both sides of the guide plate 14.

[0060] In this technical solution, there is a gap between the guide plate 14 and the inner wall of the top of the air intake box 13, and a first guide channel 171 is formed. There are gaps between the left and right ends of the guide plate 14 and the left and right inner walls of the air intake box 13, and two second guide channels 172 are formed, so as to form three main flow channels 17 with large flow rates at the top and left and right ends of the guide plate 14, so that the air entering from the air inlet 15 can be diverted to the air outlet 16, reducing intake turbulence and improving air intake efficiency to meet the intake needs of the bus engine.

[0061] As a preferred solution, the guide plate 14 is symmetrically arranged in the air intake box 13 so that the distances between the left and right ends of the guide plate 14 and the inside of the air intake box 13 are consistent, so that the air intake volumes of the two second guide channels 172 are equivalent, which helps to reduce turbulence.

[0062] like Figure 3 and Figure 5 As shown, in a feasible embodiment, the passenger car side air intake box structure also includes: two side water baffles 18, a lower water baffle 19, a drain port 20 and a drain pipe 21; the side water baffles 18 are symmetrically arranged on a side surface of the guide plate 14 close to the air outlet 16, and the side water baffles 18 are connected to the inner wall of the air intake box 13; the lower water baffle 19 is located below the air outlet 16, the lower water baffle 19 is connected to the guide plate 14, and the lower water baffle 19 is connected to the two side water baffles 18; the drain port 20 runs through the lower water baffle 19; the drain pipe 21 is arranged on the air intake box, and the drain pipe 21 is connected to the drain port 20.

[0063] In this technical solution, the guide plate 14 is fixed on the inner wall of the air intake box 13 through a water baffle plate, and the left and right ends of the guide plate 14 are provided with side water baffle plates 18, and the bottom end of the guide plate 14 is provided with a lower water baffle plate 19 to prevent the droplets in the air flow from entering the air outlet 16 from the left and right sides and the bottom of the guide plate 14 when circulating in the guide channel 17. On the basis of preventing the direct rainwater from entering the air outlet 16 by the guide plate 14, the droplets carried in the air are further blocked by the side water baffle plates 18 and the lower water baffle plate 19, and the amount of water entering the air outlet 16 is reduced, thereby further improving the waterproof effect of the air intake box structure. The drainage port 20 on the lower water baffle plate 19 is connected to the drainage pipe 21 at the bottom of the air intake box 13 to ensure that there is no water accumulation in the semi-enclosed structure surrounded by the side water baffle plates 18, the guide plate 14 and the lower water baffle plate 19, and the accumulated water is prevented from entering the air outlet 16, thereby ensuring the waterproof effect of the air intake box 13.

[0064] like Figure 3 and Figure 5As shown, in a feasible embodiment, the bus side air intake box structure also includes: a water retaining platform 22; the water retaining platform 22 is arranged on the side water retaining plate 18, and the water retaining platform 22 makes the width of the second guide channel 172 away from the end of the first guide channel 171 greater than the width of the second guide channel 172 close to the end of the first guide channel 171.

[0065] In this technical solution, since the air flow rate of the first guide channel 171 above the guide plate 14 is greater than the air flow rate below the guide plate 14, negative pressure will be formed in the first guide channel 171. By providing a water retaining platform 22 on the side water retaining plate 18, the width of the bottom of the second guide channel 172 is made greater than the width of the top, thereby preventing the water at the bottom of the guide plate 14 from being sucked to the top under the action of negative pressure, thereby reducing the influence of the direct rainwater gathered at the bottom of the air intake box 13 on the waterproof effect of the air intake box structure, thereby ensuring the effectiveness of the waterproofing of the air intake box structure.

[0066] like Figure 3 and Figure 5 As shown, in a feasible implementation, the passenger car side air intake box structure further includes: a flow diffuser 23 ; the flow diffuser 23 is disposed on the top of the side water baffle 18 , and the flow diffuser 23 is located on the side of the side water baffle 18 close to the guide plate 14 .

[0067] In this technical solution, after the air flows out from the three guide channels 17, a vortex will be formed on the side of the guide plate 14 close to the air outlet 16. By setting a diffuser 23 between the side water baffle 18 and the guide plate 14, the space of the second air intake guide channel 172 can be increased. That is, when the airflow flows through the side water baffle 18, part of the airflow can flow from the diffuser 23 to the rear of the guide plate 14, thereby reducing the turbulence caused by the airflow flow, improving the smoothness of the airflow, and further improving the air intake efficiency.

[0068] like Figure 4 and Figure 5 As shown, in a feasible embodiment, the guide plate 14 includes: a guide portion 141 and two slow flow portions 142; the guide portion 141 can cover the air outlet 16, and the guide portion 141 protrudes toward the direction close to the air inlet 15; the slow flow portions 142 are symmetrically arranged at both ends of the guide portion 141.

[0069] In this technical solution, the middle part of the guide portion 141 protrudes toward the direction close to the air inlet 15, so that the air entering from the air inlet 15 can quickly flow to the left and right ends of the guide plate 14, so as to reduce the obstruction of the guide plate 14 to the air intake of the air inlet 15, thereby accelerating the entry of rear gas and improving the air intake efficiency of the air inlet 15; the slow flow portion 142 is symmetrically arranged at the left and right ends of the guide portion 141, optimizing the gas flow direction to prevent the air flow velocity from suddenly slowing down and generating a cyclone, ensuring that the air flow can flow smoothly in the second guide channel 172 and then flow out from the air outlet 16, thereby improving the stability of the air supply of the air intake box structure to the engine, which is beneficial to the stable operation of the engine.

[0070] As a preferred solution, the guide portion 141 is a curved structure so that the flow rate of the air intake will not change sharply, thereby improving the smoothness of the air intake.

[0071] Furthermore, a surface of the guide portion 141 close to the vehicle body 10 is a streamlined surface formed by a vertical extension of a parabola, so that the air intake surface of the guide portion 141 is more in line with the law of gas flow, reducing the air intake obstruction of the guide portion 141, thereby making the air intake box structure have better air intake efficiency and effect.

[0072] Further, such as Figure 3 As shown, a first guide angle 27 is provided on the side of the bottom of the slow flow portion 142 away from the guide portion 141, and a second guide angle 28 is provided on the inner wall of the bottom of the air intake box. The angle of the second guide angle 28 is consistent with the angle of the first guide angle 27. The guide angle can improve the airflow and prevent droplets with smaller volume and mass from being sucked into the air outlet 16.

[0073] It should be noted that the guide angle can be a right angle or a rounded angle, and the guide angle cannot be an oblique angle to avoid the oblique guide angle affecting the waterproof effect of the air intake box 13.

[0074] like Figure 6 As shown, in a feasible embodiment, the air intake grille 12 includes: a frame 121 and a grille plate 122; the frame 121 is connected to the vehicle body 10; a plurality of air intake holes 24 are provided on the grille plate 122, the grille plate 122 is embedded in the frame 121, and the grille plate 122 is connected to the frame 121; a bending portion 25 is provided on the grille plate 122 to form an air intake groove 26 between the grille plate 122 and the frame 121.

[0075] In this technical solution, the grille plate 122 is embedded in a frame 121, and the frame 121 is connected to the vehicle body 10 so that the grille plate 122 is fixed at the air inlet 11 of the vehicle body 10 through the frame 121; the bend on the grille plate 122 makes the longitudinal section of the grille plate 122 present a "Z" shape, and an air intake groove 26 is formed on the grille plate 122, thereby increasing the effective air intake area of ​​the grille plate 122 and improving the air intake efficiency of the air intake grille 12.

[0076] like Figure 6 As shown, in a feasible embodiment, the bending portion 25 is evenly arranged on the grid plate 122 along the length direction of the grid plate 122, and the bending portion 25 extends along the width direction of the grid plate 122; the bending portion 25 includes a first air inlet portion 251 and a second air inlet portion 252; the first air inlet portion 251 is arranged at an angle to the plane where the frame 121 is located, and there is a first angle between the first air inlet portion 251 and the plane where the frame 121 is located; the second air inlet portion 252 is arranged at an angle to the plane where the frame 121 is located, and there is a second angle between the second air inlet portion 252 and the plane where the frame 121 is located; wherein, the width of the first air inlet portion 251 is greater than the width of the second air inlet portion 252, and the second angle is greater than the first angle.

[0077] In this technical solution, the bending portion 25 is evenly arranged on the grid plate 122 along the length direction of the grid plate 122, and the bending portion 25 extends along the width direction of the grid plate 122 to form more air inlet grooves 26 on the grid plate 122, thereby increasing the air inlet area, so that the air inlet efficiency is improved; the first air inlet portion 251 is set at an angle to the plane where the frame 121 is located, and the second air inlet portion 252 is set at an angle to the plane where the frame 121 is located, and the width of the first air inlet portion 251 is greater than the width of the second air inlet portion 252, and the second angle is greater than the first angle, so as to ensure that the front of the grid plate 122 has sufficient air inlet area, that is, the front of the grid plate 122 is the main air inlet surface, and the second air inlet portion 252 is the auxiliary air inlet surface, to ensure that when the air inlet grooves 26 increase the air inlet area of ​​the grid plate 122, the increased airflow can quickly and smoothly enter the air inlet 15.

[0078] like Figure 6 As shown, in a feasible embodiment, the air inlet hole 24 is in an elongated strip shape, and the air inlet hole 24 includes: a first air inlet hole 241 and a second air inlet hole 242; the first air inlet hole 241 is arranged on the first air inlet portion 251, and the first air inlet hole 241 is parallel to the length direction of the first air inlet portion 251; the second air inlet hole 242 is arranged on the second air inlet portion 252, and the second air inlet hole 242 is perpendicular to the first air inlet hole.

[0079] In this technical solution, the air inlet hole 24 is set to be a long strip to reduce the resistance of the grille plate 122 to the air intake, thereby improving the air intake efficiency of the grille plate 122; the first air inlet hole 241 is set on the first air inlet portion 251 along a direction parallel to the length of the first air inlet portion 251, so that when the air flows to the two ends of the first air inlet portion 251 and fills the air inlet groove 26, the air can smoothly enter the air inlet box 13 from the first air inlet hole 241; at the same time, the second air inlet portion 252 is set along the depth direction of the air inlet groove 26, and when the air flows to the depth direction of the air inlet groove 26 and fills the air inlet groove 26, the air can smoothly enter the air inlet box 13 from the second air inlet port 11, thereby effectively improving the air intake efficiency of the air inlet groove 26.

[0080] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0081] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A passenger car side air intake box structure, characterized in that: The passenger car side air intake box structure comprises: An air intake grille, the air intake grille covers the air intake port and is connected to the vehicle body; An air intake box, the air intake box is connected to the vehicle body, the air intake box is provided with an air inlet and an air outlet, the air outlet is connected to the air intake grid through the air inlet; A guide plate is arranged inside the air intake box, and the inner wall of the air intake box and the guide plate are arranged to form a guide channel to guide the air entering the air intake box from the air inlet.

2. The side air intake box structure of a passenger car according to claim 1, characterized in that: The guide plate is vertically disposed between the air inlet and the air outlet, and the guide plate can cover the air outlet.

3. The side air intake box structure of a passenger car according to claim 2, characterized in that: There is a gap between the guide plate and the top surface of the air intake box to form a first guide channel on the top of the guide plate; There is a gap between the guide plate and the side surface of the air intake box, so as to form second guide channels on both sides of the guide plate respectively.

4. A passenger car side air intake box structure according to claim 3, characterized in that: The passenger car side air intake box structure also includes: Two side water baffles, the side water baffles are symmetrically arranged on a side surface of the guide plate close to the air outlet, and the side water baffles are connected to the inner wall of the air inlet box; A lower water baffle, the lower water baffle is located below the air outlet, the lower water baffle is connected to the guide plate, and the lower water baffle is connected to the two side water baffles; A drain outlet, the drain outlet passing through the lower water retaining plate; A drain pipe is arranged on the air intake box and is connected to the drain port.

5. The passenger car side air intake box structure according to claim 4, characterized in that: The passenger car side air intake box structure also includes: A water retaining platform is arranged on the side water retaining plate, and the water retaining platform makes the width of the second guide channel away from the first guide channel greater than the width of the second guide channel close to the first guide channel.

6. The passenger car side air intake box structure according to claim 5, characterized in that: The passenger car side air intake box structure also includes: The flow expansion port is arranged on the top of the side water baffle plate, and the flow expansion port is located on a side of the side water baffle plate close to the guide plate.

7. The passenger car side air intake box structure according to claim 2, characterized in that: The guide plate comprises: A guide portion, the guide portion can cover the air outlet, and the guide portion protrudes toward the direction close to the air inlet; Two slow flow parts are symmetrically arranged at two ends of the guide part.

8. The passenger car side air intake box structure according to claim 1, characterized in that: The air intake grid comprises: A frame connected to the vehicle body; A grid plate is provided with a plurality of air inlet holes, the grid plate is embedded in the frame, and the grid plate is connected to the frame; a bending portion is provided on the grid plate to form an air inlet groove between the grid plate and the frame.

9. The passenger car side air intake box structure according to claim 8, characterized in that: The bent portions are evenly arranged on the grid plate along the length direction of the grid plate, and the bent portions extend along the width direction of the grid plate; The bending portion includes a first air inlet portion and a second air inlet portion; The first air inlet is arranged at an angle to the plane where the frame is located, and there is a first angle between the first air inlet and the plane where the frame is located; the second air inlet is arranged at an angle to the plane where the frame is located, and there is a second angle between the second air inlet and the plane where the frame is located; Wherein, the width of the first air inlet portion is greater than the width of the second air inlet portion, and the second angle is greater than the first angle.

10. The passenger car side air intake box structure according to claim 9, characterized in that: The air inlet is in the shape of an elongated strip, and the air inlet comprises: A first air inlet hole, wherein the first air inlet hole is arranged on the first air inlet portion, and the first air inlet hole is parallel to a length direction of the first air inlet portion; A second air inlet hole is disposed on the second air inlet portion, and the second air inlet hole is perpendicular to the first air inlet hole.

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