Combined structure for preventing water flow in front windshield area from entering air conditioner air inlet and vehicle

Abstract

The application discloses a combined structure for preventing water flow in a front windshield area from entering an air conditioner air inlet and a vehicle, and relates to the field of automobile body structures.The combined structure comprises a front windshield, an A-pillar sheet metal and a front wall sheet metal, the lower portion of the front windshield is provided with an air conditioner air inlet, the front windshield comprises an upper surface and a lower surface, one side of the upper surface is provided with a water flow groove cover plate, the lower portion of the water flow groove cover plate is provided with a front windshield water baffle, the lower surface is provided with front windshield sealing rubber between the A-pillar sheet metal, characterized in that the side surface of the front windshield sealing rubber is fixedly connected with a water guide pad, one end of the front wall sheet metal is provided with a sheet metal turn-up, and the sheet metal turn-up is located in front of the air conditioner air inlet.The application reduces the amount of water flowing to the air conditioner air inlet at the source, realizes the first line of defense for shunting and pressure reduction protection, prevents the water from overflowing or being accumulated in large amounts in front of the air inlet, and ensures that the final water falling point is far away from the air conditioner air inlet.

Description

Technical Field

[0001] This application relates to the field of automotive body structure, and more particularly to a combined structure and vehicle for preventing water from entering the air conditioning intake in the windshield area. Background Technology

[0002] In the front structure of a car, the front bulkhead sheet metal area is usually equipped with air conditioning intakes to introduce outside air into the vehicle's air conditioning system. The area above and on both sides is connected to the windshield components, A-pillar sheet metal, front bulkhead sheet metal, and other structures.

[0003] During actual vehicle use (such as in rain or car wash conditions), water falling on the windshield and surrounding area needs to be discharged under gravity. Under normal circumstances, water from the upper surface of the windshield and water from the A-pillar sheet metal area will flow downwards along the lower surface of the windshield and sealant, converging towards the area where the front water channel and air conditioning intake are located, and then being discharged outside the vehicle through the pre-set drainage channel.

[0004] Currently, water flowing from the A-pillar sheet metal area tends to flow directly along the lower surface of the windshield towards the air conditioning intake area. There is a lack of effective diversion and redirection measures at the source, resulting in a large amount of water flowing directly into the air intake. At the same time, the water that accumulates in front of the air conditioning intake lacks effective protection and drainage structures. When there is a lot of water, it is easy to overflow and accumulate in front of the air intake. In addition, the existing design's water drop point is close to the air intake, making it easy for the negative pressure generated when the air conditioning system is working to directly suck it into the interior, resulting in a large amount of water being drawn into the air conditioning filter, which seriously affects the normal function of the air conditioning filter.

[0005] Therefore, a combined structure is needed to prevent water from entering the air conditioning intake in the windshield area. By adopting a self-waterproof structure that combines source diversion and end interception in the early sheet metal design stage of the product, the problems of filter damage caused by water entering the air conditioning intake in the traditional real vehicle stage and the long rectification cycle, high parts and assembly costs, and serious impact on vehicle development cycle caused by passive remediation by adding additional water baffles later are avoided. This improves the overall design quality of the product and is highly consistent with the current design concept of cost reduction and efficiency improvement in the automotive industry. Summary of the Invention

[0006] The purpose of this invention is to provide a combined structure and vehicle for preventing water from entering the air conditioning intake in the windshield area. This solves the problem that water in the windshield and A-pillar areas of existing automobiles easily accumulates and is sucked into the air conditioning intake, causing damage to the air conditioning filter. Furthermore, the traditional method of adding a water baffle plate later for remediation is costly and has a long rectification period.

[0007] This invention provides the following solution:

[0008] The first aspect of this invention provides a combined structure for preventing water from entering the air conditioning intake in the windshield area, comprising: a windshield, a front bulkhead sheet metal, and an A-pillar sheet metal. An air conditioning intake is provided below the windshield. The windshield includes an upper surface and a lower surface. A water channel cover is provided on one side of the upper surface of the windshield, and a windshield water deflector is provided below the water channel cover. A windshield sealant is provided between the lower surface of the windshield and the front bulkhead sheet metal. The invention is characterized in that a water-guiding pad is fixedly connected to the side surface of the windshield sealant, and a sheet metal flange is provided at one end of the front bulkhead sheet metal, with the sheet metal flange located in front of the air conditioning intake.

[0009] Furthermore, the height of the middle section of the front sheet metal is higher than that of the sides, and the water guide pad is located on the side of the front windshield sealant near the air conditioning intake.

[0010] Furthermore, the water guide pad is inclined downwards to direct the water flow away from the air conditioner inlet.

[0011] Furthermore, the bottom of the water channel cover plate overlaps and cooperates with the front windshield deflector.

[0012] Furthermore, a water accumulation area is formed between the sheet metal flange and the water channel cover plate to collect water flow.

[0013] Furthermore, the height of the sheet metal flange is greater than or equal to 4mm.

[0014] Furthermore, the top of the sheet metal flange has an upper edge.

[0015] Furthermore, the upper edge of the sheet metal flange is inclined downward along a direction away from the air conditioning inlet.

[0016] Furthermore, the angle formed between the upper edge of the sheet metal flange and the horizontal line is greater than or equal to 3°, and the horizontal front-to-back distance between the foremost point of the sheet metal flange and the air conditioning inlet is greater than or equal to 60mm.

[0017] A second aspect of the present invention provides a vehicle, including a vehicle body, wherein the vehicle body is provided with a combined structure as described in the first aspect of the present invention for preventing water from flowing into the air conditioning intake in the windshield area.

[0018] The above solution achieves the following beneficial technical effects:

[0019] This invention, by setting up a water-guiding pad and fixing it to the front windshield sealant, can block and change the original direction of water flowing from the A-pillar sheet metal area and along the lower surface of the front windshield, forcing most of the water to flow downwards, thereby reducing the amount of water flowing to the air conditioning intake at the source and achieving the first line of defense for diversion and pressure reduction protection.

[0020] This invention utilizes a sheet metal flange located in front of the air conditioner's air intake to create a water-blocking structure that provides secondary protection and drainage for the accumulated water. Through the design of the sheet metal flange's height to prevent overflow, its inclined flow guidance, and its safe distance from the air intake, it not only prevents water from overflowing or accumulating in large quantities in front of the air intake, but also ensures that the final water droplet is far away from the air conditioner's air intake, preventing the water from being sucked into the air conditioning system by the negative pressure and blocking the water inlet's path.

[0021] This invention combines a combined waterproof structure consisting of a water-guiding pad and a sheet metal flange, integrating source diversion and end-point interception. This allows the problem of water ingress at the air conditioning intake of the front sheet metal to be solved during the early sheet metal design stage. The invention features a simplified structure and stable waterproof performance, not only avoiding filter damage caused by water ingress into the air conditioning intake but also reducing design costs, shortening the rectification cycle, and improving the overall design quality of the product. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front windshield structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the side structure of the windshield deflector of the present invention.

[0024] Figure 3 This is a schematic diagram of the sheet metal flange side structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the air inlet structure of the air conditioner of the present invention.

[0026] Among them, 10 is the water guide pad; 20 is the sheet metal flange; 30 is the air conditioning intake; 40 is the front windshield; 41 is the upper surface of the front windshield; 42 is the lower surface of the front windshield; 50 is the front windshield water deflector; 60 is the front windshield sealant; 70 is the front bulkhead sheet metal; 80 is the water channel cover plate; and 90 is the A-pillar sheet metal. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see the appendix Figure 1 To be continued Figure 4This invention provides a combined structure for preventing water from entering the air conditioning intake in the windshield area, comprising: a windshield 40, a front bulkhead sheet metal 70, and an A-pillar sheet metal 90. An air conditioning intake 30 is provided below the windshield 40. The windshield 40 includes an upper surface 41 and a lower surface 42. A water channel cover 80 is provided on one side of the upper surface 41, and a windshield water deflector 50 is provided below the water channel cover 80. A windshield sealant 60 is provided between the lower surface 42 and the front bulkhead sheet metal 70.

[0029] Specifically, in complex environments such as actual vehicle operation, rain, or car washing, the front windshield area, as the main water-facing surface at the front of the vehicle body, bears a large amount of rainwater and washing water. Under the action of gravity, the water will inevitably slide down along the geometric surface of the vehicle body. The water flow from the upper surface 41 of the front windshield constitutes the first main water ingress path, while the water flow that gathers along the sheet metal 90 of the A-pillars on both sides constitutes the second water ingress path along the lower surface 42 of the front windshield and the front windshield sealant 60. The water flow at the end of both paths is likely to converge towards the air conditioning intake 30 area of ​​the air conditioning system inside the vehicle, which poses a risk of water ingress.

[0030] In the existing automotive development process, the real-vehicle verification stage, such as simulated heavy rain tests and high-pressure water gun car wash tests, is often the critical period for exposing such water-related hazards. Due to the oncoming wind pressure when a car is traveling at high speed, this pressure forces rainwater in the windshield area 40 towards the interior of the vehicle, altering the natural flow of water that is purely influenced by gravity. Simultaneously, when the vehicle's air conditioning system is in external circulation mode or maximum fan speed defrost mode, the blower generates a very strong negative pressure zone near the air intake 30. This negative pressure has a strong adsorption capacity for free water droplets and water films in the surrounding environment. Once a large amount of external water rich in impurities and dust breaks through the outer protective layer and converges here, it is easily drawn directly into the air conditioning filter. A damp filter not only obstructs ventilation, causing the windows to fog up and severely affecting driving visibility and safety, but it can also breed mold and bacteria inside, causing unpleasant odors in the vehicle.

[0031] In response to the two pathways mentioned above that easily lead to water ingress into the air conditioning system and damage to the air conditioning filter, this invention adopts a combination of source diversion and end-point physical interception. By reconstructing the geometry of the original vehicle body components and arranging water-guiding accessories, a tight waterproof barrier is formed, fundamentally blocking the path of water flow being sucked into the air conditioning intake by the 30° negative pressure. This not only achieves a simplified structure and stable waterproof performance, but also significantly improves the overall design quality of the product.

[0032] A water-guiding pad 10 is fixedly connected to the side surface of the front windshield sealant 60. The water-guiding pad 10 is located on the side of the front windshield sealant 60 near the air conditioning intake 30. The water-guiding pad 10 is inclined downward to guide the water flow away from the air conditioning intake 30. A sheet metal flange 20 is provided at one end of the front bulkhead sheet metal 70. The middle height of the front bulkhead sheet metal 70 is higher than the sides. The height of the sheet metal flange 20 is greater than or equal to 4mm. The sheet metal flange 20 is located in front of the air conditioning intake 30.

[0033] For the second water inlet path flowing along the lower surface 42 of the windshield and the windshield sealant 60, the present invention provides a water guide pad 10 at the source interface. In the actual assembly process, it is strictly ensured that the water guide pad 10 and the windshield sealant 60 achieve a completely sealed state without gaps. When a large amount of water flows through the A-pillar sheet metal 90 area, the downwardly inclined water guide pad 10 can effectively block and forcibly change the original movement direction of the water flow, forcing most of the water flow to deviate from the trajectory of flowing towards the air conditioning intake 30 and directly discharge along the bottom of the vehicle body. This reduces the amount of water flowing towards the air intake at the source, achieving efficient diversion and pressure reduction protection.

[0034] To ensure reliable operation of the water guide pad 10 throughout the entire vehicle lifecycle, the water guide pad 10 is preferably made of highly weather-resistant EPDM (ethylene propylene diene monomer) or TPV (thermoplastic vulcanizate) material through integral injection molding. This gives the water guide pad 10 excellent resistance to ultraviolet rays, ozone, and aging, and it can maintain constant Shore hardness and elasticity in extreme environmental temperatures ranging from -40℃ to 120℃. In terms of assembly structure, the contact surface between the water guide pad 10 and the windshield sealant 60 is coated with a special modified silane sealant, making the two an inseparable whole and eliminating the risk of loosening and cracking of the mating surface due to body torsional deformation caused by long-term driving on bumpy roads.

[0035] The downward tilt angle of the water guide pad 10 is calculated based on the actual flow field of the front bulkhead sheet metal 70 space. Utilizing the dual effects of Bernoulli's principle and the component of fluid gravity, when the water flow impacts the inclined surface of the water guide pad 10 with a certain initial velocity, the momentum direction of the water flow is smoothly converted, and it slides smoothly along the inclined low-resistance channel to the dedicated drainage channel inside the body fender, reducing the flood discharge volume by more than 80% from the source and reducing the pressure load on the subsequent waterproof structure.

[0036] Meanwhile, the sheet metal flange 20 plays a physical interception role. The flange at one end of the sheet metal flange 20 is designed with a height of 4mm or more, forming a metal water barrier at the front end of the air conditioning inlet 30. This can effectively resist the instantaneous rise of the water level and prevent the accumulated water from overflowing over the sheet metal flange 20.

[0037] The bottom of the drainage channel cover 80 overlaps with the windshield deflector 50, and a water accumulation area is formed between the sheet metal flange 20 and the drainage channel cover 80 to collect water flow. This overlapping structure presents a complex, tortuous channel in its microscopic cross-section. By increasing the head loss along the flow path and the local head loss, it forces the high-speed impacting water flow to undergo multiple deflections and turbulence, thereby dissipating kinetic energy. Furthermore, the overlapping interface utilizes the hydrophobic properties of the waterproof material, increasing the contact angle of water droplets at this point and disrupting the capillary climb effect that easily occurs in narrow gaps, preventing water from penetrating upwards or inwards by surface tension.

[0038] Specifically, when facing the first water inlet path from the upper surface 41 of the windshield, most of the surface water flowing downstream will first be intercepted by the windshield baffle 50 below the water channel cover 80. The tight interlocking structure between the bottom of the water channel cover 80 and the windshield baffle 50 increases the physical resistance to water penetration and the length of the maze path, thus weakening the kinetic energy of the water flow.

[0039] In extreme conditions such as torrential rain or direct high-pressure water jets, a small amount of water may still break through and seep into the upper area of ​​the air conditioning intake 30 along with the water that has not been completely discharged. The water accumulation area formed between the sheet metal flange 20 and the water channel cover 80 plays a crucial role in buffering and collecting water. This not only prevents water from spreading in the engine compartment, but also centralizes and controls the small amount of water that has seeped in, creating a favorable structural condition for the directional drainage and rapid emptying of subsequent water flow.

[0040] The top of the sheet metal flange 20 has an upper edge, which is inclined downward along the direction away from the air conditioning inlet 30.

[0041] Specifically, when the water flowing into the water accumulation area is successfully intercepted by the aforementioned vertical sheet metal flange 20, the intercepted water will immediately flow smoothly and quickly along the inclined angle to a point far away from the air conditioning intake 30 due to the obvious inclined slope of the upper edge of the sheet metal flange. This avoids the potential risk of water accumulating in large quantities in front of the air conditioning intake 30, and always maintains a relatively low water level and dry state in the front area of ​​the intake, eliminating the risk of backflow across the flange caused by excessive local water accumulation.

[0042] The sheet metal flange 20 is not an additional splicing part, but a body structure formed in one go during the stamping of the upper A-pillar sheet metal 90 of the front bulkhead. It utilizes the drawing and flange process of the mold to form the body structure in one go. The flange height of 4mm or more is set as the optimal threshold obtained through rigorous fluid dynamics experiments: the dynamic water film thickness maintained by the surface tension of water under normal conditions is usually between 2mm and 3mm. The height of 4mm can just provide enough physical barrier, which can not only ensure that it can intercept the water surge generated by the rain, but also avoid the process quality defects of excessive sheet metal thinning rate during the stamping process due to excessive flange drawing, which would lead to material cracking or wrinkling. It takes into account both the feasibility of manufacturing process and the requirements of waterproof performance.

[0043] The angle formed between the upper edge of the sheet metal flange and the horizontal line is greater than or equal to 3°, and the horizontal distance between the foremost tip of the sheet metal flange 20 and the air conditioning inlet 30 is greater than or equal to 60mm.

[0044] Specifically, the angle formed between the upper edge of the sheet metal flange and the horizontal line is strictly set to be greater than or equal to 3°. This angle can fully overcome the surface tension of water and the frictional resistance of the metal sheet metal surface, ensuring that the water can still maintain a continuous directional flow under a small component of gravity, thus improving the drainage efficiency.

[0045] If the angle is too gentle (e.g., less than 3°), water can easily stagnate and form stagnant pools under surface tension. Long-term immersion in stagnant water will accelerate the oxidation and peeling of the electrophoretic primer and anti-rust wax coating on the sheet metal surface, which will not only cause structural corrosion and rust on the car body, but also lead to mold growth. An angle of 3° or greater is sufficient to overcome the static friction between water droplets and the metallic paint surface, achieving self-cleaning and drainage of water in seconds, and protecting the anti-corrosion life of the car body sheet metal.

[0046] To address the rare occurrence of a small amount of splashing water accidentally crossing the sheet metal flange 20 when the vehicle is driving on bumpy roads or encountering extreme wind and water conditions, this invention provides ample safety redundancy in its spatial layout. By forcibly setting a horizontal distance of greater than or equal to 60mm, it not only lengthens the parabolic air resistance trajectory of the splashing water but also ensures that the final landing point of any splashing water that may cross the boundary maintains a sufficiently safe and distant distance from the air conditioning intake 30. This avoids the strong negative pressure adsorption zone generated near the air conditioning intake 30 when the air conditioning system is operating under forced ventilation, thereby fundamentally blocking the final path of tiny water droplets being mercilessly sucked into the air conditioning filter by negative pressure. This ensures the dryness of the air conditioning filter and the absolute safety and reliable operation of the entire ventilation system.

[0047] From an aerodynamic and flow field distribution perspective, when the air conditioning system operates at maximum power (blower air volume reaches 600-800 m³ / h), 3At a speed of 60 mm / h, the air velocity around the air inlet exhibits a typical nonlinear exponential decay. Within a 20 mm radius of the air inlet, the negative pressure suction is strong enough to overcome the gravity of larger water droplets, causing them to rise and suspend in the opposite direction. However, when the horizontal distance extends to 60 mm or more, the air velocity in the flow field has decreased to a light breeze, and the negative pressure force is negligible. At this point, the very few tiny water droplets splashed into this area will simply fall freely into the safe area below, dominated by Stokes drag and their own gravity, and will not be re-inhaled into the air inlet.

[0048] A vehicle includes a body, on which a combined structure is provided to prevent water from flowing into the air conditioning intake in the windshield area.

[0049] Specifically, the vehicle provided by this invention can be any form of modern transportation, such as a traditional fuel-powered passenger car, a battery electric vehicle (BEV), or a plug-in hybrid electric vehicle (PHEV). In actual vehicle operation, whether facing the continuous drizzle of the southern plum rain season, the lateral onslaught of strong winds and torrential rain during coastal typhoons, or the 360-degree spray of high-pressure water jets from an automated car wash, the combined structure of this invention, located at a key position at the front of the vehicle, can function as a barrier.

[0050] Its working principle upgrades the vehicle's waterproofing concept from the traditional passive containment to active diversion and precise interception. The first line of defense, the water-guiding pad 10, plays a role in water flow regulation below the A-pillar of the vehicle, diverting the side road water flow, which is prone to causing water ingress accidents, from the main channel in advance and guiding it to a safe area. The second line of defense, the sheet metal flange 20, combined with a 4mm high interception wall, a 3° self-cleaning drainage slope, and a 60mm anti-sucking safety distance, avoids the possibility of residual water intruding into the air conditioning system.

[0051] The benefits of this invention to the overall vehicle are comprehensive. First, at the macro level of the vehicle development cycle, this combined structure abandons the outdated approach of discovering leaks during the actual vehicle stage and then opening molds and adding covers. Instead, it integrates waterproofing design into the 3D digital model definition of sheet metal stamping parts during the body-in-white (BIW) stage. This geometric feature reconstruction based on the original basic components of the vehicle body (such as the built-in flange) directly eliminates the large plastic water-blocking cover and matching fasteners such as clips and bolts at the front air conditioning air intake 30, simplifying the number of vehicle parts. This not only reduces the per-vehicle manufacturing cost (BOM cost optimization) but also avoids delays in mold development cycles, meeting the current intense cost reduction and efficiency improvement competition in the automotive industry.

[0052] Secondly, in terms of user experience and vehicle reliability, the use of a purely physical structure for waterproofing protects the air conditioning filter from water immersion, eliminating the health hazard of odorous gases blown out due to damp and moldy filter elements. This ensures that the air in the passenger cabin is always fresh and avoids user complaints and frequent replacement and maintenance costs caused by frequent water damage to the filter elements.

[0053] Working principle: In actual vehicle use and rainy environments, water flow in the front sheet metal area mainly converges towards the air conditioning intake 30 through two paths. The first path is the water flow from the upper surface 41 of the windshield. Most of the water flow is intercepted by the windshield deflector 50 below the water channel cover 80, but a small amount of water will still seep into the upper part of the air conditioning intake 30. The second path is the water flow that easily flows along the windshield sealant 60 and the lower surface 42 of the windshield towards the air conditioning intake 30 area.

[0054] In response to the water flow along the lower surface 42 of the windshield, the present invention arranges a water guide pad 10 in the area where the lower surface 42 of the windshield and the A-pillar sheet metal 90 meet. During assembly, the water guide pad 10 is sealed and fixedly connected to the windshield sealant 60 without gaps. When the water flows through, the water guide pad 10 can effectively block and change the original direction of the water flow, forcing most of the water flow to flow downwards. This reduces the amount of water flowing to the air conditioning intake 30 at the source, and achieves the diversion and pressure reduction protection of the first line of defense.

[0055] To address the water accumulation in front of the air conditioning intake 30, a secondary protection and drainage system is implemented using a sheet metal flange 20 positioned in front of the intake 30. The vertical height of the sheet metal flange 20 is designed to be greater than or equal to 4mm, forming a water barrier to prevent the accumulated water from overflowing. The upper edge of the sheet metal flange 20 forms an angle of greater than or equal to 3 degrees with the horizontal line. Under the influence of gravity, the intercepted water flows smoothly along the inclined angle to a point far away from the air conditioning intake 30, preventing significant water accumulation in front of the intake. The horizontal distance between the frontmost point of the sheet metal flange 20 and the edge of the air conditioning intake 30 is greater than or equal to 60mm, ensuring water flow even under extreme conditions. A small amount of water splashes over the sheet metal flange 20, ensuring that the final drop point maintains a sufficient safe distance from the air conditioning inlet 30. This prevents the water from being sucked into the air conditioning system by negative pressure. By setting the sheet metal flange 20 in front of the air conditioning inlet 30, the water-blocking structure formed by the sheet metal flange 20 provides secondary protection and drainage for the final accumulated water. Through the design of the sheet metal flange 20's height to prevent overflow, its inclined flow guidance, and its safe distance from the air conditioning inlet 30, not only is it prevented from overflowing or accumulating in large quantities in front of the air conditioning inlet 30, but it also ensures that the final drop point is far away from the air conditioning inlet 30, preventing the water from being sucked into the air conditioning system by negative pressure and blocking the water intake path of the inlet.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combined structure for preventing water from entering the air intake of an air conditioner in the windshield area, characterized in that, include: The windshield (40), the front bulkhead sheet metal (70) and the A-pillar sheet metal (90) are provided. An air conditioning air intake (30) is provided below the windshield (40). The windshield (40) includes an upper surface (41) and a lower surface (42) of the windshield. A water channel cover (80) is provided on one side of the upper surface (41) of the windshield. A windshield water deflector (50) is provided below the water channel cover (80). A windshield sealant (60) is provided between the lower surface (42) of the windshield and the front bulkhead sheet metal (70). The windshield sealant (60) is characterized in that a water guide pad (10) is fixedly connected to the side surface of the windshield sealant (60). A sheet metal flange (20) is provided at one end of the front bulkhead sheet metal (70). The sheet metal flange (20) is located in front of the air conditioning air intake (30).

2. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The height of the middle part of the front sheet metal (70) is higher than that of the sides, and the water guide pad (10) is located on the side of the front windshield sealant (60) near the air conditioning intake (30).

3. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The water guide pad (10) is inclined downward to direct the water flow away from the air conditioner inlet (30).

4. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The bottom of the water channel cover (80) overlaps with the windshield deflector (50).

5. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The sheet metal flange (20) and the water channel cover (80) form a water accumulation area for collecting water flow.

6. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The height of the sheet metal flange (20) is greater than or equal to 4mm.

7. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 1, characterized in that, The top of the sheet metal flange (20) has an upper edge of the sheet metal flange.

8. The combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 7, characterized in that, The upper edge of the sheet metal flange is inclined downward in a direction away from the air conditioning inlet (30).

9. A combined structure for preventing water from entering the air conditioning intake in the windshield area according to claim 8, characterized in that, The angle formed between the upper edge of the sheet metal flange and the horizontal line is greater than or equal to 3°, and the horizontal front-to-back distance between the front end of the sheet metal flange (20) and the air conditioning inlet (30) is greater than or equal to 60mm.

10. A vehicle, characterized in that, The vehicle body includes a combined structure as described in any one of claims 1-9 for preventing water from flowing into the air conditioning intake in the windshield area.

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