Ventilation cover plate, forecabin drainage and air inlet system and vehicle

Abstract

The invention discloses a ventilation cover plate, a forecabin drainage and air inlet system and a vehicle, and belongs to the technical field of vehicles. The ventilation cover plate comprises a body part and a fence part, an opening and a first water outlet are formed in the body part at intervals; the bottom end of the enclosure part surrounds the opening and is connected with the body part, an air inlet is defined by the top end of the enclosure part and is communicated with the opening, so that external air can be provided for an air conditioning system of the vehicle through the opening, and the bottom end is opposite to the top end; the plane where at least one part of the air inlet is located inclines relative to the plane where the opening is located. The ventilation cover plate can increase the air inlet area of the air inlet while preventing water from entering the air inlet, so that the air inlet amount is increased, and the air inlet performance of an air conditioning system can be improved when the ventilation cover plate is applied to a vehicle.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and particularly relates to a ventilation cover plate, a front cabin drainage and air intake system, and a vehicle. Background Art

[0002] The front cabin drainage and air intake system is an important part of the vehicle front panel, generally arranged between the front windshield and the engine hood of the vehicle. On the one hand, it is used to provide sufficient air intake for the vehicle's air conditioning system to meet the air circulation requirements of the passenger compartment. On the other hand, it plays a role in draining water, guiding the water falling on the vehicle roof and the front windshield to be discharged outside the vehicle.

[0003] The front cabin drainage and air intake system mainly includes a ventilation cover plate and a water chute. Generally, a drainage port communicating with the water chute and an air intake port communicating with the air conditioning system are provided on the ventilation cover plate. After the water on the vehicle's front windshield and roof falls on the ventilation cover plate, it generally flows into the water chute through the drainage port and is finally discharged outside the vehicle. In related technologies, in order to prevent the water falling on the ventilation cover plate from entering the air conditioning system and the passenger compartment through the air intake port, the opening area of the air intake port is usually designed to be relatively small. However, this will have an adverse impact on the air intake performance of the air conditioner. Summary of the Invention

[0004] This application provides a ventilation cover plate, a front cabin drainage and air intake system, and a vehicle. The ventilation cover plate can increase the air intake of the air intake port while preventing water from entering the air intake port, so as to improve the air intake performance of the vehicle's air conditioning system. The technical solution is as follows:

[0005] In a first aspect, this application provides a ventilation cover plate. The ventilation cover plate includes a body part and a surrounding part; an opening and a first drainage port are arranged at intervals on the body part; the bottom end of the surrounding part is arranged around the opening and is connected to the body part, and the top end of the surrounding part encloses an air intake port. The air intake port is communicated with the opening, so as to provide external air for the vehicle's air conditioning system through the opening, and the bottom end and the top end are opposite to each other;

[0006] Wherein, at least a part of the plane where the air intake port is located is inclined relative to the plane where the opening is located.

[0007] In the solution shown in this application, a surrounding part is arranged around the opening on the body part of the ventilation cover plate, and the top end of the surrounding part encloses an air intake port. Since at least a part of the plane where the air intake port is located is inclined relative to the plane where the opening is located, the opening area corresponding to the air intake port is larger than the opening area of the opening on the body part.

[0008] Since a larger opening area means a larger air intake area, compared with the solution in the related art that directly uses the opening on the main body part as the air intake, the solution shown in this application can increase the air intake volume of the air intake and improve the air intake performance of the vehicle's air conditioning system.

[0009] Moreover, since the enclosure part is arranged around the opening on the main body part, the air intake surrounded by the top end of the enclosure part is higher than the surface of the main body part. That is, the water flowing on the main body part is not easily to cross the enclosure part and enter the air intake, thus avoiding the phenomenon of water entering the air intake.

[0010] In a possible implementation, the height of the front end of the enclosure part is lower than the height of the rear end of the enclosure part. The front end and the rear end are opposite to each other, and the front end is farther away from the vehicle's front windshield than the rear end.

[0011] In the solution shown in this application, the water flowing down from the vehicle's roof and front windshield will flow through the rear end and the front end of the enclosure part in sequence. Therefore, the rear end of the enclosure part usually faces relatively more water than the front end. By making the height of the rear end of the enclosure part higher than the height of the front end, the water blocking effect of the rear end is improved, effectively preventing the water on the main body part from flowing over the rear end of the enclosure part and into the air intake.

[0012] Moreover, when the heights of the front end and the rear end of the enclosure part are different, at least a part of the air intake surrounded by the top end of the enclosure part will be inclined relative to the opening, thus increasing the air intake area.

[0013] In a possible implementation, along the direction from the front end to the rear end of the enclosure part, the height of the enclosure part gradually increases.

[0014] In a possible implementation, the ventilation cover plate further includes a grid part. The grid part covers the air intake and is connected to the top end of the enclosure part. Among them, the main body part, the enclosure part and the grid part are of an integrally formed structure.

[0015] In the solution shown in this application, a grid part is also provided at the air intake to prevent foreign objects from entering the air conditioning system through the opening from the outside, playing a role in protecting the air conditioning system. By adopting an integrally formed process for the main body part, the enclosure part and the grid part, while simplifying the manufacturing process of the ventilation cover plate, it is also beneficial to improve the structural strength of the ventilation cover plate.

[0016] In a possible implementation, the ventilation cover plate further includes a first dam. The first dam is connected to the main body part and divides the main body part into a first part and a second part that are isolated from each other. The opening and the enclosure part are both located in the first part, and the first drain port is located in the second part.

[0017] At least one end of the first dam is located at a side edge of the body portion and has a gap with the rear edge of the body portion, where the side edge is the edge on both sides of the body portion, and the rear edge is the edge of the body portion close to the front windshield of the vehicle.

[0018] In the solution shown in the present application, a first dam is connected to the body portion, and at least one end of the first dam extends to the side edge of the body portion, thereby separating the body portion into a first part and a second part that are isolated from each other. The air inlet is located in the first part, and the first drain port is located in the second part. The water flowing down from the front windshield of the vehicle will first flow into the second part and stay in the second part under the blocking action of the first dam, and is discharged through the first drain port. Therefore, it is not easy for water to flow into the first part, further ensuring that the air inlet will not get water.

[0019] In a possible implementation manner, the first dam traverses the body portion along the length direction of the body portion, and the two ends of the first dam are respectively located at the two side edges of the body portion;

[0020] The first dam includes a first dam segment, a second dam segment, and a third dam segment that are sequentially connected along the length direction. The second dam segment extends along the length direction, and at least a part of the first dam segment and at least a part of the third dam segment extend along the width direction of the body portion;

[0021] Wherein, the number of the first drain ports is at least two. At least two of the first drain ports are connected to the second dam segment, are respectively located at positions close to the first dam segment and the third dam segment, and there is a gap between each first drain port and the adjacent first dam segment or third dam segment.

[0022] In the solution shown in the present application, the first dam traverses the body portion along the length direction of the body portion, and its two ends are respectively located at the two side edges of the body portion. The first dam segment, the second dam segment, and the third dam segment of the first dam are sequentially connected. The second dam segment extends along the length direction, and the first dam segment and the third dam segment both extend along the width direction, so that the first dam forms a semi-surrounding structure. The first drain port is connected to the second dam segment. When water flows into the second part, part of the water will directly flow into or flow back into the first drain port under the blocking of the second dam segment; the other part of the water flows towards the side edge of the body portion and flows back into the first drain port under the blocking of the first dam segment and the third dam segment. Therefore, the first dam as a whole has a good water blocking effect and can promote drainage. Compared with the solution in the related art that allows water to flow out from the side edge of the body portion, the drainage distance is shortened and the drainage efficiency is increased.

[0023] In addition, since at least two first drain openings are respectively arranged close to the first dam section and the third dam section, no matter what posture the vehicle body is in, the smooth drainage of water can be ensured.

[0024] In a possible implementation manner, the ventilation cover plate further includes two second dam sections, both of the two second dam sections are located in the second part, and are respectively erected at two side edges of the main body part;

[0025] The dam surface of each second dam section is connected to the end of the adjacent first dam section, and the end of the second dam section extends away from the first dam section to the rear edge of the main body part, and the end is the end of the second dam section close to the vehicle's front windshield; wherein, the height of the second dam section is less than the height of the end of the first dam section to which it is connected.

[0026] In the solution shown in the present application, by respectively arranging two second dam sections at two side edges of the main body part, and connecting the end of the first dam section to the dam surface of the second dam section, the enclosure effect on the second part is further enhanced, which can to a certain extent inhibit the water falling into the second part from overflowing from the side edges of the main body part, and prompt the water to be discharged from the first drain opening as much as possible.

[0027] Moreover, since the height of the second dam section is less than the height of the end of the first dam section to which it is connected, when the water volume on the main body part is relatively large and the drainage capacity of the first drain opening is insufficient, the water in the second part can also overflow over the second dam section to relieve the drainage pressure, thereby ensuring that the water in the second part will not overflow over the relatively higher first dam section and cause the risk of water entering the air inlet.

[0028] In a possible implementation manner, the ventilation cover plate further includes two extended water guiding parts, and the two extended water guiding parts are respectively connected to the ends of the two second dam sections, and are used for guiding the water that overflows over the second dam section to the area between the vehicle's fender and the shock absorber tower for drainage.

[0029] In a possible implementation manner, at least two second drain openings are further arranged on the main body part, the at least two second drain openings are located in the first part, and are respectively located on opposite sides of the enclosure part in the length direction, and there is a gap between the second drain openings and the enclosure part.

[0030] In the solution shown in this application, at least two second drain outlets are provided in the first part. In this way, even if the water in the second part flows over the first dam and into the first part, the water can be discharged in time through the second drain outlets to prevent the water from accumulating in the first part and flowing into the air inlet. Moreover, since the at least two second drain outlets are distributed on the opposite sides of the enclosure part in the length direction, no matter what posture the vehicle body is in, the smooth discharge of water can be ensured, that is, the drainage effect of the first part is ensured.

[0031] In a possible implementation manner, the height of the main body part gradually decreases from the middle to both sides; the at least two second drain outlets are respectively located at the positions with the lowest height at both ends of the main body part in the first part.

[0032] In the solution shown in this application, the main body part is designed to have a structure with a gradually decreasing height from the middle to both sides, and the second drain outlets are arranged at the positions with the lowest height of the main body part in the first part. In this way, the water flowing into the first part will naturally flow into the second drain outlets on both sides under the action of gravity and be discharged, avoiding the formation of accumulated water in the first part and ensuring the drainage effect.

[0033] In a possible implementation manner, the ventilation cover plate further includes a rabbet part, and the rabbet part is connected to the front edge of the main body part away from the front windshield of the vehicle for installing a sealing strip; wherein, there is a first gap between the rabbet part and the enclosure part.

[0034] In the solution shown in this application, a rabbet part is connected to the front edge of the main body part, and there is a first gap between the rabbet part and the enclosure part. The first gap is used to play a role in guiding and draining water, and can prevent the water flowing into the first part from accumulating at the rabbet part, thereby eliminating the phenomenon that the accumulated water flows over the front end of the enclosure part and into the air inlet.

[0035] In a possible implementation manner, there is a second gap between the first dam and the enclosure part.

[0036] In the solution shown in this application, there is a second gap between the first dam and the enclosure part to prevent the water flowing over the first dam from directly falling on the top of the enclosure part and then flowing into the air inlet.

[0037] In a possible implementation manner, the ventilation cover plate further includes an eaves part, and the eaves part is located above the air inlet and is connected to the first dam.

[0038] In the solution shown in this application, an eaves part is provided above the air inlet. On the one hand, the eaves part can prevent the liquid water flowing over the first dam from directly flowing into the air inlet. On the other hand, it can prevent the water mist floating over the first dam from being sucked into the air inlet by the negative pressure of the air conditioning system. Therefore, the effect of preventing water from entering the air inlet is further improved.

[0039] In a second aspect, the present application provides a front cabin drainage and air intake system, which includes a wind guiding member, a drainage member, and the ventilation cover plate described in the first aspect;

[0040] Both the wind guiding member and the drainage member are located below the ventilation cover plate, wherein the wind guiding member is connected to the opening on the ventilation cover plate, and the drainage member is connected to the first drainage opening on the ventilation cover plate.

[0041] In the solution shown in the present application, the front cabin drainage and air intake system performs the air intake function through the opening on the ventilation cover plate and the wind guiding member, and performs the drainage function through the first drainage opening and the drainage member on the ventilation cover plate.

[0042] In a possible implementation manner, one end of the drainage member away from the first drainage opening extends towards the direction close to the bottom guard plate of the vehicle, for guiding the water flowing into the connected first drainage opening to the bottom guard plate.

[0043] In the solution shown in the present application, the water discharged from the first drainage opening will flow towards the bottom guard plate of the vehicle under the guidance of the drainage member, and be discharged out of the vehicle through the opening on the bottom guard plate.

[0044] In a possible implementation manner, the wind guiding member is a wind guiding pipe, and the wind guiding pipe includes a first pipe section and a second pipe section. One end of the first pipe section is connected to the opening, and the other end is connected to the second pipe section;

[0045] Wherein, the second pipe section is bent relative to the first pipe section, and the included angle between the first pipe section and the second pipe section is less than 90 degrees.

[0046] In the solution shown in the present application, the wind guiding member includes a first pipe section connected to the opening on the body part and a second pipe section bent and connected to the first pipe section. The included angle between the first pipe section and the second pipe section is an acute angle, less than 90 degrees, so that the water droplets attached to the inner walls of the first pipe section and the second pipe section can naturally drip under the action of gravity, and will not enter the air conditioning system along the inner wall of the second pipe section.

[0047] In a possible implementation manner, a third drainage opening is provided on the wind guiding member, and the third drainage opening is located at the connection between the first pipe section and the second pipe section.

[0048] In the solution shown in the present application, a third drainage opening is provided at the connection between the first pipe section and the second pipe section of the wind guiding member. In this way, even if a small amount of water enters the wind guiding member, it can be discharged in time from the third drainage opening, thus preventing water accumulation in the wind guiding pipe.

[0049] In a third aspect, the present application provides a vehicle, which includes the ventilation cover plate described in the first aspect, or includes the front cabin drainage and air intake system described in the second aspect.

[0050] In the solution shown in this application, a retaining portion is disposed around the opening on the main body portion of the ventilation cover plate, and the top ends of the retaining portion enclose an air inlet. Since at least a part of the plane where the air inlet is located is inclined with respect to the plane where the opening is located, the opening area corresponding to the air inlet is larger than the opening area of the opening on the main body portion. Since a larger opening area means a larger air intake area, compared with the solution in the related art that directly uses the opening on the main body portion as the air inlet, the solution shown in this application can increase the air intake volume of the air inlet and improve the air intake performance of the vehicle's air conditioning system.

[0051] Moreover, since the retaining portion is disposed around the opening on the main body portion, the air inlet enclosed by the top ends of the retaining portion is higher than the surface of the main body portion. That is, the water flowing on the main body portion is not easily able to cross the retaining portion and enter the air inlet, thereby being able to avoid the phenomenon of water entering the air inlet, playing a protective role for the air conditioning system, and preventing water from entering the passenger compartment of the vehicle, improving the environmental comfort and driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic structural diagram of a ventilation cover plate provided by an embodiment of this application;

[0053] Figure 2 is a schematic diagram of a usage environment of the ventilation cover plate provided by an embodiment of this application;

[0054] Figure 3 is a schematic structural diagram of a ventilation cover plate with a grid portion provided by an embodiment of this application;

[0055] Figure 4 is Figure 3 an enlarged structural view of part A in

[0056] Figure 5 is a schematic structural diagram of another ventilation cover plate provided by an embodiment of this application;

[0057] Figure 6 is a schematic diagram of a partial structure of a ventilation cover plate provided by an embodiment of this application;

[0058] Figure 7 is a schematic layout diagram of a second dam provided by an embodiment of this application;

[0059] Figure 8 is another schematic diagram of a usage environment of the ventilation cover plate provided by an embodiment of this application;

[0060] Figure 9 is a schematic layout diagram of the arrangement position of a second drain port provided by an embodiment of this application;

[0061] Figure 10 It is a schematic cross-sectional structure diagram of a ventilation cover plate provided by an embodiment of the present application;

[0062] Figure 11 It is a schematic diagram of the arrangement position of a retaining part provided by an embodiment of the present application;

[0063] Figure 12 It is a schematic diagram of the arrangement structure of a brim part provided by an embodiment of the present application;

[0064] Figure 13 It is a schematic diagram of the structure of a front cabin drainage and air intake system provided by an embodiment of the present application;

[0065] Figure 14 It is a schematic diagram of the structure of a wind guiding member provided by an embodiment of the present application;

[0066] Figure 15 It is a schematic diagram of the arrangement structure of a wind guiding member provided by an embodiment of the present application;

[0067] Figure 16 It is a schematic diagram of the arrangement position of a third drainage port provided by an embodiment of the present application.

[0068] Reference numerals:

[0069] 1. Ventilation cover plate; 11. Body part; 111. Opening; 112. First drainage port; 113. First part; 114. Second part; 115. Second drainage port; 116. Rear edge; 117. Front edge; 118. Side edge; 1191. Bottom plate; 1192. Side plate; 12. Retaining part; 121. Bottom end; 122. Top end; 123. Air intake port; 124. Front end; 125. Rear end; 126. Second interval; 13. Grid part; 14. First dam; 141. First dam segment; 142. Second dam segment; 143. Third dam segment; 144. End part; 15. Second dam; 151. End; 16. Stopper part; 161. First interval; 17. Extended water guiding part; 18. Brim part;

[0070] 2. Wind guiding member; 21. First pipe segment; 22. Second pipe segment; 23. Third drainage port;

[0071] 3. Drainage member;

[0072] 4. Front windshield. Detailed implementation manners

[0073] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0074] This embodiment relates to a ventilation cover plate. The air inlet on the ventilation cover plate has a relatively larger air intake area, which helps to increase the air intake volume, that is, improve the air intake performance of the air conditioning system. Moreover, the ventilation cover plate can effectively prevent water from entering the air inlet, thereby avoiding the phenomenon of water entering the air conditioning system and the passenger compartment, strengthening the protection of the air conditioning system, and improving the environmental comfort of the passenger compartment.

[0075] Among them, the ventilation cover plate can be applied to the front cabin drainage and air intake system of a vehicle. On the one hand, the ventilation cover plate can cooperate with the air duct to provide a larger amount of external air for the vehicle's air conditioning system to achieve the air intake function; on the other hand, it can cooperate with the drainage part to quickly drain the water flowing down from the vehicle's roof and front windshield to the outside of the vehicle to achieve the drainage function.

[0076] Next, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

[0077] Figure 1 It is a schematic structural diagram of a ventilation cover plate 1 provided for an embodiment of the present application. Refer to Figure 1 As shown, the ventilation cover plate 1 provided by the embodiment of the present application includes a main body part 11 and a surrounding part 12. The main body part 11 is used to form the main structure of the ventilation cover plate 1. Corresponding to the air intake function and drainage function of the ventilation cover plate 1, an opening 111 and a first drainage port 112 are respectively provided on the main body part 11, and the opening 111 and the first drainage port 112 are spaced apart from each other. The surrounding part 12 is connected to the main body part 11. Among them, the bottom end 121 of the surrounding part 12 surrounds the opening 111 and is vertically connected to the main body part 11; the top end 122 of the surrounding part 12 encloses an air inlet 123. The air inlet 123 is communicated with the opening 111 and is located above the opening 111, that is, the air inlet 123 is higher than the opening 111 and higher than the surface of the main body part 11 where the opening 111 is opened. External air can flow into the opening 111 through the air inlet 123 under the action of negative pressure, and then flow into the vehicle's air conditioning system. Among them, the top end 122 and the bottom end 121 of the surrounding part 12 are relatively positioned.

[0078] In this embodiment, at least a part of the plane where the air inlet 123 is located is inclined relative to the plane where the opening 111 is located, that is, the height differences between different positions of the air inlet 123 and the corresponding positions of the opening 111 are not completely equal. There will be positions with relatively larger height differences. At this time, the distance between the air inlet 123 and the opening 111 at this position is relatively farther; there will also be positions with relatively smaller height differences. At this time, the distance between the air inlet 123 and the opening 111 at this position is relatively closer.

[0079] Since the ventilation cover plate 1 receives the water flowing down from the top of the vehicle and the front windshield 4, the direction of the water flow is from the rear to the front along the vehicle body, where from the rear to the front means from the rear of the vehicle to the front of the vehicle. Therefore, considering the situation that the amount of water faced by the rear end 125 of the retaining part 12 is usually more than that faced by the front end 124 of the retaining part 12, in one example, as Figure 2 shown, the height of the front end 124 of the retaining part 12 is lower than the height of the rear end 125 of the retaining part 12, that is, the front end 124 of the retaining part 12 is closer to the opening 111 than the rear end 125. Among them, the front end 124 and the rear end 125 of the retaining part 12 are opposite in position, and the front end 124 is farther from the front windshield 4 of the vehicle than the rear end 125.

[0080] Therefore, on the one hand, the rear end 125 of the retaining part 12 has a better water blocking effect due to its higher height, and can effectively prevent the water flowing onto the body part 11 from passing over the rear end 125 and entering the air inlet 123; on the other hand, due to the front-low and rear-high structural design, the top end 122 of the retaining part 12 can enclose an air inlet 123 that slopes upward at least partially from the front end 124 to the rear end 125.

[0081] For example, as Figure 2 shown, along the direction from the front end 124 of the retaining part 12 to the rear end 125 of the retaining part 12, the height of the retaining part 12 gradually increases. Therefore, the air inlet 123 is in an inclined plane shape, is located in a plane as a whole, and this plane is inclined relative to the plane where the opening 111 is located.

[0082] Another example is that along the direction from the front end 124 of the retaining part 12 to the rear end 125 of the retaining part 12, the first half of the retaining part 12 has a gradually increasing height, and the second half has a constant height. Therefore, the first half of the air inlet 123 is in an inclined plane shape and is located in a plane, this plane is parallel to the plane where the opening 111 is located, and the second half is located in another plane, this plane is parallel to the plane where the opening 111 is located.

[0083] The height at each position of the retaining part 12 can be configured by the designer according to actual needs, but it should be ensured that the height cannot be too low, otherwise the water flow on the body part 11 is likely to pass over the retaining part 12 and enter the air inlet 123; at the same time, the height cannot be too high either, otherwise the top end 122 of the retaining part 12 will abut against the front hood (also known as the engine hood), causing an obstruction to the intake.

[0084] Exemplarily, the range of the height of the front end 124 of the retaining part 12 can be 20 - 30 mm, and the range of the height of the rear end 125 of the retaining part 12 can be 30 - 40 mm.

[0085] In one example, as Figure 3 and Figure 4As shown, the ventilation cover plate 1 may further include a grille portion 13, which may cover the air inlet 123 and be connected to the top end 122 of the enclosure portion 12 to prevent debris from entering the air inlet 123.

[0086] Wherein, the grille portion 13 and the enclosure portion 12 may be separately formed and then connected together by means such as bonding, welding, or snap connection.

[0087] Alternatively, the grille portion 13 and the enclosure portion 12 may be an integrally formed air intake grille with a frame. The frame of the air intake grille surrounds the opening 111 of the main body portion 11 and is hermetically connected to the main body portion 11 by means such as bonding or welding to form the enclosure portion 12.

[0088] Alternatively, the grille portion 13, the enclosure portion 12, and the main body portion 11 may be an integrally formed structure manufactured by an integral molding process. Compared with the previous two solutions, this solution of the integrally formed structure has a relatively simple manufacturing process and the manufactured ventilation cover plate 1 has better structural strength.

[0089] Continuing to refer to Figure 3 , the ventilation cover plate 1 provided in the embodiment of the present application may further include a first dam 14. The first dam 14 is connected to the main body portion 11 and divides the main body portion 11 into a first part 113 and a second part 114. The space where the first part 113 is located forms a dry area where water is not easily introduced. The opening 111 and the enclosure portion 12 are both located in the first part 113; the space where the second part 114 is located forms a wet area, which mainly functions to receive and drain water. The first drain port 112 is located in the second part 114. It should be noted that the first part 113 and the second part 114 are isolated from each other and do not communicate with each other.

[0090] In this embodiment, in order to make the first dam 14 have a better water blocking effect and more effectively prevent the water flowing into the second part 114 from flowing over the first dam 14 and into the first part 113, the height of the first dam 14 is set to be higher than the height of the enclosure portion 12. However, the height of the first dam 14 cannot be too high to avoid affecting gas flow and thus affecting the intake of the air inlet 123.

[0091] Optionally, the height range of the first dam 14 may be 40 - 50 mm, and its specific height is configured by the designer according to actual needs, such as 42 mm, 44 mm, or 46 mm. The embodiment of the present application does not make specific limitations on this, as long as it is ensured that the height of the first dam 14 is higher than the height of the enclosure portion 12 and there is a gap between it and the front hood.

[0092] It is easy to understand that the first dam 14 has two opposite ends 144 in the extending direction. In one example, respectively asFigure 3 and Figure 5 As shown in Figure 5 , at least one of the two end portions 144 of the first dam 14 is located at the side edge 118 of the body portion 11, and there is a gap between it and the rear edge 116 of the body portion 11, so that the enclosed first part 113 and second part 114 have different spatial positions and arrangements. In this embodiment, the side edge 118 of the body portion 11 is the edge located on both sides, and the rear edge 116 of the body portion 11 is the edge close to the front windshield 4 of the vehicle.

[0093] Figure 3 Shown is a first dam 14 with two end portions 144 respectively located at the two side edges 118 of the body portion 11. In this case, referring to Figure 2 and 3 , the first dam 14 traverses the body portion 11 along the length direction of the body portion 11, so that the first part 113 and the second part 114 are distributed in sequence from front to back. When applied to a vehicle, the first part 113 is entirely located under the front hood of the vehicle to prevent rainwater from directly falling into the air intake 123 in rainy weather; the second part 114 is in contact with the front windshield 4 of the vehicle, and the front hood covers at most the area of the second part 114 close to the first part 113, so that the second part 114 plays a role in receiving rainwater and draining water.

[0094] Continuing to refer to Figure 3 , the first dam 14 includes a first dam segment 141, a second dam segment 142, and a third dam segment 143 that are connected in sequence along the length direction. The second dam segment 142 extends along the length direction. The first dam segment 141 and the third dam segment 143 are located on the same side of the second dam segment 142, and at least a part of the first dam segment 141 and at least a part of the third dam segment 143 extend along the width direction of the body portion 11. Thus, the formed first dam 14 is a semi - enclosed structure, which can collect the water flowing into the second area to facilitate its outflow from the first drain port 112. In Figure 3 , the length direction of the body portion 11 is marked as the X - direction, and the width direction is marked as the Y - direction.

[0095] Optionally, the length of the second dam segment 142 is greater than the length of the first dam segment 141 and greater than the length of the third dam segment 143.

[0096] Optionally, the length of the second dam segment 142 is greater than the sum of the lengths of the first dam segment 141 and the third dam segment 143.

[0097] Among them, the number of the first drain openings 112 is at least two. The at least two first drain openings 112 are connected to the second dam section 142 and are located at positions respectively close to the first dam section 141 and the third dam section 143. There is a gap between each of the first drain openings 112 and the adjacent first dam section 141 or third dam section 143. Among them, the at least two first drain openings 112 are located at positions respectively close to the first dam section 141 and the third dam section 143 and there is a gap between them and the adjacent first dam section 141 or third dam section 143, which means that for any one of the first drain openings 112, there is a relatively smaller gap between it and the adjacent first dam section 141 or third dam section 143, and a relatively larger gap between it and the first dam section 141 or third dam section 143 that is farther away.

[0098] Optionally, the distance between the two first drain openings 112 is greater than the distance between the first dam section 141 and the adjacent first drain opening 112, and greater than the distance between the third dam section 143 and the adjacent first drain opening 112.

[0099] Exemplarily, as Figure 3 shown, the number of the first drain openings 112 is two. Both of the two first drain openings 112 are connected to the second dam section 142. One of the first drain openings 112 is arranged close to the first dam section 141, and there is a relatively smaller gap between it and the first dam section 141, and a relatively larger gap between it and the third dam section 143; the other first drain opening 112 is arranged close to the third dam section 143, and there is a relatively smaller gap between it and the third dam section 143, and a relatively larger gap between it and the first dam section 141. In this way, on the one hand, when the water flows forward from back in the second part 114, it will be intercepted by the first retaining dam 14, and under the guiding action of the first dam section 141 and the third dam section 143, it will flow to the area where the second dam section 142 is located, and then directly fall downward into the first drain opening 112 and be discharged. Compared with the solution of discharging water from the side edge 118 of the main body part 11, there is a gap between the first drain opening 112 and the side edge 118 in the embodiment of the present application, so the drainage distance is relatively shorter and the drainage efficiency is relatively higher; on the other hand, since the two drain openings are respectively located on both sides of the second dam section 142, no matter what posture the vehicle body is in, the water can be smoothly discharged from the corresponding first drain opening 112, preventing water accumulation in the second part 114.

[0100] In one example, in the length direction, the height of the main body portion 11 gradually decreases from the middle to both sides. That is to say, compared with the horizontal plane, the height of the middle position of the main body portion 11 is higher, and the height of the edge positions on both sides is relatively lower. Therefore, when the water flowing on the vehicle roof and the front windshield 4 reaches the middle position of the ventilation cover plate 1, it will naturally flow from the middle position to both sides under the action of gravity until it flows into at least two first drain openings 112 located on both sides, thus ensuring the drainage effect.

[0101] Figure 5 Shown is a first dam 14 with one end 144 located at the side edge 118 of the main body portion 11 and the other end 144 located at the front edge 117 of the main body portion 11. The front edge 117 of the main body portion 11 is opposite to the rear edge 116. In this case, referring to Figure 5 , the first dam 14 includes a first dam section 141, a second dam section 142, and a third dam section 143 connected in sequence along the length direction. The second dam section 142 extends along the length direction. The first dam section 141 and the third dam section 143 are located on opposite sides of the second dam section 142, and at least a part of the first dam section 141 and at least a part of the third dam section 143 extend along the width direction of the main body portion 11. Thus, the formed first dam 14 is an inverted Z-shaped structure or a similar L-shaped structure, which can surround the enclosure portion 12 and the air inlet 123 to isolate them from the wet area.

[0102] Compared with Figure 3 the ventilation cover plate 1 shown, Figure 5 in the ventilation cover plate 1 shown, the space of the wet area is significantly larger than that of the dry area. In this case, the opening area of the first drain opening 112 can be designed to be larger to improve the drainage capacity of the first drain opening 112, and further improve the drainage efficiency of the wet area. Exemplarily, referring to Figure 5 , among the two first drain openings 112, the opening area of the first drain opening 112 far from the enclosure portion 12 is larger than that of the first drain opening 112 close to the enclosure portion 12. Therefore, the first drain opening 112 far from the enclosure portion 12 obviously has a stronger drainage capacity.

[0103] It should be noted that since the two ends of the first dam 14 are located at the side edge 118 of the main body portion 11 and there is a gap between them and the rear edge 116 of the main body portion 11, when this ventilation cover plate 1 is applied to a vehicle, the first dam 14, the main body portion 11, and the vehicle's front windshield 4 cooperate to form a drainage opening. When the amount of water in the second part 114 flowing in is too large and the drainage speed of the first drain opening 112 is slower than the water accumulation speed, the accumulated water can also be discharged through this drainage opening to relieve the drainage pressure of the first drain opening 112 and prevent the accumulated water from being too high and crossing over the first dam 14.

[0104] In a possible situation, there may be some electronic appliances and steel-aluminum lap joints arranged at the drainage position corresponding to the above drainage opening. Although corresponding waterproof measures have been taken at these structures, their resistance to water and oxygen erosion is relatively limited. If water is often drained to this position, it may cause electronic appliance failures or corrosion of the steel-aluminum lap joints.

[0105] In one example, as Figure 3 and Figure 6 shown, the ventilation cover plate 1 further includes two second dams 15. The two second dams 15 are both located in the second part 114 and are respectively erected at the two side edges 118 of the main body part 11. The dam surface of each second dam 15 is connected to the end 144 of the adjacent first dam 14. The end 151 of the second dam 15 extends along the direction away from the first dam 14 to the rear edge 116 of the main body part 11. That is, in this example, the second dam 15 is provided at the position of the above drainage opening. The second dam 15 can, to a certain extent, prevent water from being discharged from this position, but rather make the water be discharged from the first drain opening 112 as much as possible. Among them, the end 151 of the second dam 15 is the end close to the front windshield 4 of the vehicle.

[0106] As Figure 7 shown, the height of the second dam 15 is less than the height of the end 144 of the first dam 14 to which it is connected. Such a setting is to avoid the phenomenon of excessive water accumulation caused by relying solely on the first drain opening 112 for drainage when the water volume in the second part 114 is too large, and to avoid the risk of water entering the dry area. For example, in the case of light to moderate rainfall, the water volume flowing into the second part 114 is relatively small. At this time, the second dam 15 and the first dam 14 cooperate to intercept the water in the second area and discharge it through the first drain opening 112; in the case of heavy rainfall, the water volume flowing into the second part 114 is relatively large, and the drainage capacity of the first drain opening 112 is insufficient. At this time, the water can flow over the second dam 15 and be discharged, thus relieving the drainage pressure and at the same time avoiding the accumulated water from flowing over the first dam 14 with a higher height.

[0107] In this embodiment, as described above, the height of the second dam 15 can be determined according to the rainfall. For example, it is configured to satisfy that the water cannot flow over the second dam 15 in the case of light to moderate rainfall, and the water can flow over the second dam 15 and will not flow over the first dam 14 in the case of heavy rainfall. Among them, light to moderate rainfall and heavy rainfall can respectively correspond to the corresponding rainfall levels in the enhanced rain test of the vehicle, or light to moderate rainfall and heavy rainfall can also be determined according to the drainage capacity of the first drain opening 112.

[0108] Optionally, the height range of the second dam 15 can be 10 - 30 mm. For example, its height can be 14 mm, 17 mm, 20 mm, 22 mm or 25 mm.

[0109] In one example, as Figure 7 shown, the ventilation cover plate 1 further includes two outward-extension water-guiding parts 17. The two outward-extension water-guiding parts 17 are respectively connected to the ends 151 of the two second dams 15 and extend in a direction away from the main body part 11 to guide the water that has passed over the second water dam to be discharged to the area between the fender and the shock tower of the vehicle.

[0110] In some embodiments, at least one of the first dam 14, the second dam 15, and the outward-extension water-guiding part 17 is a soft structure made of a soft material, such as made of soft rubber by injection molding, and has a certain flexibility. Thus, when the soft structure collides with an external object, such as colliding with a pedestrian, due to the flexibility of the soft structure itself, it can play a certain buffering role, absorb part of the energy during the impact, and thus reduce the injury suffered by the pedestrian, providing a pedestrian protection function.

[0111] The structural features involved in the second part 114 will be introduced below.

[0112] In one example, as Figure 8 shown, at least two second drain openings 115 are provided on the main body part 11. The at least two second drain openings 115 are located in the first part 113 and are used to timely drain the water from the first part 113 when the water passes over the first dam 14 and enters the first part 113. Among them, the at least two second drain openings 115 are respectively located on the opposite sides of the enclosure part 12 in the length direction. For example, in Figure 8 there are two second drain openings 115. One second drain opening 115 is located between the left edge 118 of the enclosure part 12 and the main body part 11 and is spaced from the enclosure part 12; the other second drain opening 115 is located between the right edge 118 of the enclosure part 12 and the main body part 11 and is spaced from the enclosure part 12.

[0113] By respectively arranging the at least two second drain openings 115 on the opposite sides of the enclosure part 12 in the length direction, no matter what posture the vehicle body is in, the water can be smoothly discharged from the corresponding second drain opening 115. For example, when the vehicle body tilts to the left, the accumulated water on the main body part 11 will flow to the left under the action of gravity and be discharged from the left second drain opening 115; when the vehicle body tilts to the right, the accumulated water on the main body part 11 will flow to the right under the action of gravity and be discharged from the right second drain opening 115.

[0114] This application does not specifically limit the shape and style of the second drain opening 115, as long as the drainage can be ensured. Figure 9 shows a possible structural style of the second drain opening 115. Refer to Figure 9, each second drain opening 115 includes a plurality of drain holes arranged in sequence along the width direction of the ventilation cover plate 1, and the drain holes are located at the intersection of the bottom plate 1191 and the side plate 1192 of the main body portion 11. When the vehicle body tilts to one side, the accumulated water on the main body portion 11 will flow to that side and accumulate on the side plate 1192 on that side, and then be discharged from the corresponding second drain opening 115, thus ensuring the drainage effect.

[0115] Optionally, as Figure 9 shown, the interval between two adjacent drain holes gradually increases in the front-to-back direction. The water flowing into the first part 113 will flow forward and is more likely to accumulate at a more forward position in the first part 113. Therefore, the plurality of drain holes are arranged in a more dense manner towards the front, that is, the arrangement of the plurality of drain holes corresponds to the distribution of the water volume, so as to obtain a better drainage effect.

[0116] The width of the drain hole can be configured by those skilled in the art according to the layout requirements, and the embodiments of the present application do not make specific limitations on this, as long as sufficient drainage capacity can be ensured and the accumulated water level in the first part 113 will not exceed the retaining portion 12. Exemplarily, the aperture range of each drain hole can be 3 - 6 mm, for example, the aperture is 4 mm or 5 mm.

[0117] In addition, as mentioned above, in the length direction, the height of the main body portion 11 gradually decreases from the middle to both sides. Therefore, when the water flowing into the first part 113 reaches the middle position, it will naturally flow from the middle position to both sides under the action of gravity until it flows into at least two second drain openings 115 located on both sides.

[0118] Moreover, in order to further ensure the drainage effect, in one example, at least two second drain openings 115 are respectively located at the positions with the lowest height at both ends of the main body portion 11 in the first part 113, that is, at the side edges 118 of the main body portion 11.

[0119] Figure 10 And Figure 11 respectively show the arrangement positions of the retaining portion 12 in the first part 113. As Figure 10 shown, there is a first interval 161 between the retaining portion 12 and the rabbet portion 16 of the ventilation cover plate 1, where the rabbet portion 16 is connected to the front edge 117 of the main body portion 11 for installing a sealing strip. The existence of the first interval 161 means that the retaining portion 12 and the rabbet portion 16 are not directly connected. In this way, when the water flows to the rabbet portion 16, it can flow along the first interval 161 to the second drain openings 115 on both sides and be discharged, rather than accumulating at the rabbet portion 16. Therefore, it avoids the accumulated water at the rabbet portion 16 from having too high a water level and causing the accumulated water to cross the front end 124 of the retaining portion 12. As Figure 11As shown, there is a second interval 126 between the enclosure part 12 and the first dam 14, and the second interval 126 is used to prevent the water that crosses the first dam 14 from directly falling onto the top of the enclosure part 12 and entering the air inlet 123.

[0120] The widths of the first interval 161 and the second interval 126 can be configured by those skilled in the art according to the layout requirements. The embodiments of the present application do not make specific limitations on this, as long as it can be ensured that the first interval 161 can form a large enough drainage space to prevent the water accumulation at the rabbet part 16 from crossing the front end 124 of the enclosure part 12, and it can be ensured that the second interval 126 can keep the enclosure part 12 far enough away from the first dam 14 so that the water that crosses the first dam 14 will not directly fall onto the top end 122 of the enclosure part 12. Exemplarily, the width range of the first interval 161 can be 1-5 mm. For example, its width can be 2 mm, 3 mm, 4 mm, etc.; the width range of the second interval 126 can be 1-5 mm. For example, its width can be 2 mm, 3 mm, 4 mm, etc.

[0121] It is easy to understand that since the water on the roof of the vehicle and the front windshield 4 impacts the first dam 14 at a relatively fast speed, it is possible to form more water mist floating in the air near the first dam 14. When the air-conditioning system operates, it generates negative pressure and sucks the air around the air inlet 123 into the air inlet 123. In this way, it is possible to suck in a large amount of air carrying water mist, resulting in damage to the air-conditioning system and a large amount of water vapor entering the passenger compartment, causing discomfort to the driver and passengers.

[0122] In order to further improve the water prevention effect on the air inlet 123, in one example, as Figure 12 shown, the ventilation cover plate 1 further includes a brim part 18. The brim part 18 is located above the air inlet 123 and is connected to the first dam 14. The brim part 18 can form a shield above the air inlet 123. In this way, on the one hand, even if water crosses the first dam 14, it will not fall into the air inlet 123; on the other hand, the air carrying water mist and the air inlet 123 are isolated by the brim part 18. Therefore, the water content of the external air entering the air inlet 123 is greatly reduced, protecting the air-conditioning system from water and oxygen erosion and ensuring the environmental comfort in the passenger compartment. Among them, the upper side of the air inlet 123 refers to the side of the air inlet 123 far away from the opening 111.

[0123] Exemplarily, the orthographic projection of the air inlet 123 on the plane where the opening 111 is located is within the orthographic projection of the brim part 18 on the plane where the opening 111 is located, that is, the air inlet 123 is completely covered within the covering range of the brim part 18 to ensure the effective protection of the brim part 18 on the air inlet 123.

[0124] It should be noted that there needs to be a gap between the brim portion 18 and the air inlet 123, that is, the brim portion 18 does not contact the top end 122 of the enclosure portion 12 to avoid affecting the air intake effect of the air inlet 123.

[0125] In the embodiment of the present application, a surrounding portion 12 protrudes upward from the main body portion 11 of the ventilation cover plate 1. The surrounding portion 12 surrounds the opening 111 and forms at least a part of an air inlet 123 inclined relative to the opening 111 above the opening 111. Since the air inlet 123 has a larger air intake area than the opening 111, the air intake volume is increased compared with the scheme of directly intaking air through the opening 111, and the air intake performance of the air conditioner is effectively improved. Furthermore, the ventilation cover plate 1 also has a first dam 14 that divides the main body portion 11 into a dry area and a wet area that are not connected to each other. The air inlet is located in the dry area for realizing the air intake function, and several drainage structures, such as the first drain port 112, the second dam 15, etc., are arranged in the wet area for realizing the drainage function to prevent water from flowing into the dry area as much as possible.

[0126] Moreover, in order to cope with the occasional situation of water entering the dry area, a second drain port 115 is also arranged in the dry area to timely drain the water entering the dry area and avoid the risk of water entering the air inlet 123 caused by water accumulation in the dry area. In addition, in order to solve the problem that a large amount of water mist generated by the impact of water flow may be sucked into the air conditioner system under negative pressure, a brim portion 18 is further arranged above the air inlet 123 to effectively isolate the air inlet 123 and the high-water-content air, so as to reduce the inhalation of high-water-content air into the air inlet 123. Therefore, the ventilation cover plate 1 realizes an increase in the air intake volume of the air inlet 123 while ensuring the prevention of water from entering the air inlet 123.

[0127] The embodiment of the present application also provides a front cabin drainage and air intake system. Figure 13 It is a schematic structural diagram of the front cabin drainage and air intake system. As Figure 13 shown, the system includes a wind guiding member 2, a drainage member 3, and the above-mentioned ventilation cover plate 1. The wind guiding member 2 and the drainage member 3 are both located below the ventilation cover plate 1.

[0128] The wind guiding member 2 is used to form an air flow channel. It can be connected to the opening 111 on the ventilation cover plate 1 to receive the external air flowing in from the opening 111 and introduce it into the vehicle's air conditioner system to realize air supply. Among them, under the negative pressure of the air conditioner system, the external air enters from the air inlet 123 and flows into the air conditioner system through the opening 111 and the wind guiding member 2 in sequence.

[0129] In one example, the wind guiding member 2 can be, for example, a wind guiding pipe, as Figure 14 and Figure 15As shown, the air duct includes a first pipe section 21 and a second pipe section 22. One end of the first pipe section 21 is connected to the opening 111, and the other end is connected to the second pipe section 22. Among them, the first pipe section 21 is bent relative to the second pipe section 22, and the included angle α between the first pipe section 21 and the second pipe section 22 is less than 90°.

[0130] It should be noted that when the front cabin drainage and intake air system is applied to a vehicle, the second pipe section 22 of the air duct should have an included angle β with the horizontal line, and 0° < β < 180°. In this way, when water enters the intake port 123 and flows along the inner wall into the air duct, and when water vapor in the air condenses on the wall of the air duct to form water droplets, the water droplets will naturally drip onto the bottom of the air duct under the action of gravity, rather than moving along the wall towards the direction close to the air conditioning system.

[0131] Optionally, the longitudinal section of the second pipe section 22 is in a flared shape, that is, the part of the second pipe section 22 farther away from the first pipe section 21 has a larger cross-sectional area. Therefore, sufficient air intake volume is ensured, and at the same time, it is ensured that the water droplets hanging on the wall of the second pipe section 22 can flow towards the first pipe section 21, thus moving away from the air conditioning system.

[0132] For the water dripping onto the bottom of the air duct, as Figure 16 shown, a third drain port 23 is further provided at the bottom of the air duct. The third drain port 23 is located at the upper bottom of the air duct, that is, the position with the lowest height on the air duct. For example, when the air duct is arranged in the orientation as Figure 15 shown, the third drain port 23 can be located at the connection of the first pipe section 21 and the second pipe section 22 to ensure that all the accumulated water in the air duct can be drained.

[0133] The drainage member 3 is used to form a drainage channel, and it can be connected to the first drain port 112 on the ventilation cover plate 1 to lead the water flowing in from the first drain port 112 to a set drainage position for discharge.

[0134] In one example, the end of the drainage member 3 away from the first drain port 112 extends towards the direction close to the bottom guard plate of the vehicle, and is used to lead the water flowing into the first drain port 112 to the bottom guard plate and discharge it out of the vehicle through the opening on the bottom guard plate.

[0135] In one example, corresponding to the two first drain ports 112 on the main body part 11 of the ventilation cover plate 1, the number of the drainage members 3 is also two, and a relatively large interval space is formed between the two drainage members 3. Therefore, the solution of this example is very friendly to a vehicle model with a shorter lengthwise dimension between the shock absorber tower and the front panel area, for example, there is a V-shaped beam partition in the middle of the front cabin of the vehicle.

[0136] Specifically, some vehicles are provided with V-shaped beams on the vehicle frame in the front cabin area to enhance the stiffness and mode of the vehicle frame. However, this V-shaped beam will occupy the front cabin space, and in this case, it is impossible to arrange a large cross-type water trough. In the front cabin drainage and air intake system provided in the embodiment of the present application, only two small-volume drainage parts 3 are connected to the positions corresponding to the first drainage ports 112 on both sides of the ventilation cover plate 1, and the space between these two drainage parts 3 is left vacant, which can be used to meet the layout requirements of the V-shaped beam.

[0137] The embodiment of the present application also provides a vehicle, which includes the above-mentioned ventilation cover plate 1, or the vehicle includes the above-mentioned front cabin drainage and air intake system.

[0138] In the description of the present application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, "at least one" means one or more, and "multiple" means two or more. The words such as "first" and "second" do not limit the quantity and execution order, and the words such as "first" and "second" do not necessarily limit to be different.

[0139] In the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific manner.

[0140] All the above optional technical solutions can be combined arbitrarily to form optional embodiments of the present disclosure, which will not be elaborated one by one here.

[0141] The above are only the optional embodiments of the present application, and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ventilation cover plate, characterized in that, the ventilation cover plate (1) includes a body part (11) and a surrounding part (12); openings (111) and first drain openings (112) are arranged at intervals on the body part (11); the bottom end (121) of the surrounding part (12) is arranged around the opening (111) and is connected to the body part (11), the top end (122) of the surrounding part (12) encloses an air inlet (123), and the air inlet (123) is communicated with the opening (111), so that external air can be provided for the air conditioning system of the vehicle through the opening (111), and the bottom end (121) and the top end (122) are opposite; wherein, at least a part of the plane where the air inlet (123) is located is inclined relative to the plane where the opening (111) is located.

2. The ventilation cover plate according to claim 1, characterized in that, the height of the front end (124) of the surrounding part (12) is lower than the height of the rear end (125) of the surrounding part (12), the front end (124) and the rear end (125) are opposite, and the front end (124) is farther from the front windshield (4) of the vehicle than the rear end (125).

3. The ventilation cover plate according to claim 2, characterized in that, along the direction from the front end (124) of the surrounding part (12) to the rear end (125) of the surrounding part (12), the height of the surrounding part (12) gradually increases.

4. The ventilation cover plate according to claim 1, characterized in that, the ventilation cover plate (1) further includes a grid part (13), the grid part (13) covers the air inlet (123) and is connected to the top end (122) of the surrounding part (12); wherein, the body part (11), the surrounding part (12) and the grid part (13) are of an integrally formed structure.

5. The ventilation cover plate according to any one of claims 1-4, characterized in that, the ventilation cover plate (1) further includes a first dam (14), the first dam (14) is connected to the body part (11) and divides the body part (11) into a first part (113) and a second part (114) that are isolated from each other, the opening (111) and the surrounding part (12) are both located in the first part (113), and the first drain opening (112) is located in the second part (114); at least one end (144) of the first dam (14) is located at the side edge (118) of the body part (11) and has a gap with the rear edge (116) of the body part (11), wherein the side edge (118) is the edge on both sides of the body part (11), and the rear edge (116) is the edge of the body part (11) close to the front windshield (4) of the vehicle.

6. The ventilation cover plate according to claim 5, characterized in that, The first dam (14) traverses the body portion (11) along the length direction of the body portion (11), and the two ends (144) of the first dam (14) are respectively located at the two side edges (118) of the body portion (11). The first dam (14) includes a first dam segment (141), a second dam segment (142) and a third dam segment (143) connected in sequence along the length direction. The second dam segment (142) extends along the length direction, and at least a part of the first dam segment (141) and at least a part of the third dam segment (143) extend along the width direction of the body portion (11). Wherein, the number of the first drainage openings (112) is at least two. At least two first drainage openings (112) are connected to the second dam segment (142), and are respectively located at positions close to the first dam segment (141) and the third dam segment (143), and there is a gap between each first drainage opening (112) and the adjacent first dam segment (141) or the third dam segment (143).

7. The ventilation cover plate according to claim 5, characterized in that, The ventilation cover plate (1) further includes two second dams (15). The two second dams (15) are both located in the second part (114), and are respectively erected at the two side edges (118) of the body portion (11). The dam surface of each second dam (15) is connected to the end (144) of the adjacent first dam (14). The end (151) of the second dam (15) extends along the direction away from the first dam (14) to the rear edge (116) of the body portion (11), and the end (151) is the end of the second dam (15) close to the front windshield (4) of the vehicle. Wherein, the height of the second dam (15) is less than the height of the end (144) of the first dam (14) to which it is connected.

8. The ventilation cover plate according to claim 7, characterized in that, The ventilation cover plate (1) further includes two extended water guiding portions (17). The two extended water guiding portions (17) are respectively connected to the ends (151) of the two second dams (15), and are used for guiding the water passing over the second dams (15) to the area between the fender and the shock tower of the vehicle for drainage.

9. The ventilation cover plate according to claim 5, characterized in that, At least two second drainage openings (115) are further provided on the body portion (11). The at least two second drainage openings (115) are located in the first part (113), and are respectively located on the opposite sides of the enclosure portion (12) in the length direction of the body portion (11), and there is a gap between the second drainage openings (115) and the enclosure portion (12).

10. The ventilation cover plate according to claim 9, characterized in that, In the length direction, the height of the body portion (11) gradually decreases from the middle to both ends; The at least two second drain openings (115) are respectively located at the positions with the lowest height at both ends of the body part (11) in the first part (113).

11. The ventilation cover plate according to claim 9 or 10, characterized in that, the ventilation cover plate (1) further includes a rabbet part (16), and the rabbet part (16) is connected to the front edge (117) of the body part (11) away from the front windshield (4) of the vehicle for installing a sealing strip; wherein, there is a first gap (161) between the rabbet part (16) and the enclosure part (12).

12. The ventilation cover plate according to claim 5, characterized in that, there is a second gap (126) between the first dam (14) and the enclosure part (12).

13. The ventilation cover plate according to claim 5, characterized in that, the ventilation cover plate (1) further includes an eaves part (18), and the eaves part (18) is located above the air inlet (123) and is connected to the first dam (14).

14. A front cabin drainage and air intake system, characterized in that, the system includes a wind guiding member (2), a drainage member (3), and the ventilation cover plate (1) according to any one of claims 1-13; both the wind guiding member (2) and the drainage member (3) are located below the ventilation cover plate (1), wherein the wind guiding member (2) is connected to the opening (111) on the ventilation cover plate (1), and the drainage member (3) is connected to the first drain opening (112) on the ventilation cover plate (1).

15. The system according to claim 14, characterized in that, one end of the drainage member (3) away from the first drain opening (112) extends towards the direction close to the bottom guard plate of the vehicle for guiding the water flowing into the first drain opening (112) to the bottom guard plate.

16. The system according to claim 14, characterized in that, the wind guiding member (2) is a wind guiding pipe, and the wind guiding pipe includes a first pipe section (21) and a second pipe section (22), one end of the first pipe section (21) is connected to the opening (111), and the other end is connected to the second pipe section (22); wherein, the first pipe section (21) is bent relative to the second pipe section (22), and the included angle between the first pipe section (21) and the second pipe section (22) is less than 90 degrees.

17. The system according to claim 16, characterized in that, a third drain opening (23) is arranged on the wind guiding pipe, and the third drain opening (23) is located at the connection part of the first pipe section (21) and the second pipe section (22).

18. A vehicle, characterized in that, the vehicle includes the ventilation cover plate according to any one of claims 1-13, or includes the front cabin drainage and air intake system according to any one of claims 14-17.

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