Water barrier and motor vehicle

Abstract

The application discloses a water blocking device and a motor vehicle. The water blocking device comprises a cover plate and a box. The cover plate is provided with a cover plate air inlet. The box is located at one side of the cover plate and forms an air duct extending in a first direction together with the cover plate. The box comprises a first box and a second box which are in communication with the air duct. The first box and the second box are arranged in the first direction. The top of the first box is open and faces the cover plate air inlet. The second box is provided with an air conditioner air inlet close to the side wall of the motor vehicle. The air conditioner air inlet faces a second direction. The second direction intersects the first direction. In this way, the application can reduce the probability of water being sucked into the air conditioner air inlet.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a water-blocking device and a motor vehicle. Background Technology

[0002] The automotive air conditioning system is an indispensable comfort feature in modern passenger vehicles. Its core function is to provide a comfortable temperature and air environment for the occupants through cooling, heating, and ventilation systems. Among these, the air intake, as the entry point for air into the air conditioning system, directly affects the quality of the air entering the cabin, the normal operating efficiency of the air conditioning system, and the passenger experience.

[0003] When a vehicle is driven in the rain, rainwater adheres to the windshield surface through splashing or direct dripping. Some rainwater flows downwards along the windshield surface and may accumulate at the edges. Since the air conditioning intake is located in this area, when rainwater is blown up by the wipers, or when it accumulates to a certain height and the flow speed increases, some rainwater will inevitably be drawn into the intake and into the air conditioning system. Existing rainproof designs often have limited effectiveness or are too costly to fully meet practical needs. Therefore, reducing the probability of water being drawn into the air conditioning intake has become an urgent problem to be solved. Utility Model Content

[0004] The main technical problem addressed by this application is to provide a water-blocking device and a motor vehicle that can reduce the probability of water being drawn into the air conditioning intake.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a water-blocking device for a motor vehicle, comprising: a cover plate with an air inlet; and a housing located on one side of the cover plate, forming an air duct extending along a first direction with the cover plate. The housing includes a first housing and a second housing communicating with the air duct. The first housing and the second housing are arranged along the first direction. The top opening of the first housing faces the air inlet of the cover plate, and the second housing is provided with an air conditioning inlet near the side wall of the motor vehicle, which faces a second direction, wherein the second direction intersects the first direction.

[0006] The water-blocking device further includes a water-blocking rib, which is disposed on the side of the cover plate near the box body and located at the edge of the air inlet of the cover plate.

[0007] The distance between the air conditioner air inlet and the cover plate air inlet along the first direction is greater than 150 mm.

[0008] The water-blocking device further includes a grille located inside the air inlet of the cover plate and fixedly connected to the cover plate.

[0009] The water-blocking device further includes a water-blocking step located on the side wall of the first housing near the second housing, with the top of the water-blocking step higher than the lowest point of the air conditioning inlet; wherein the water-blocking step divides the air duct into a first sub-air duct and a second sub-air duct, the first sub-air duct being located above the first housing and the second sub-air duct being located above the second housing.

[0010] The side wall of the first box, away from the second box, is inclined relative to the cover plate and has a height greater than 50 mm.

[0011] The top opening of the first box is higher than the top opening of the second box, and the bottom wall of the second box is lower than the bottom wall of the first box.

[0012] The first tank has a first drain hole on its bottom wall for draining water out of the first tank.

[0013] The bottom wall of the second housing is provided with a second drain hole, which is close to the side wall where the air conditioner air inlet is located.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a motor vehicle that includes the water-blocking device described in any of the above technical solutions.

[0015] The beneficial effects of this application are as follows: Unlike the prior art, the cover plate and the box body of this application form an air duct, with the air inlet of the cover plate connected to the air duct. The first box body and the second box body are arranged side by side in the box body, and the air conditioning air inlet is located on the side wall of the second box body. Compared with the structure of a single box body, the double box body of this application extends the rainwater path, allowing rainwater to fall into the first box body and then through the air conditioning air inlet located on the side wall of the second box body facing the second direction, further extending the rainwater path and allowing rainwater to fall into the second box body. Overall, this improves the rainwater collection rate of the box body, increases the rainwater blocking efficiency, and reduces the probability of water being sucked into the air conditioning air inlet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a schematic diagram of one embodiment of the water-blocking device of this application;

[0018] Figure 2 This is a schematic diagram of another embodiment of the water-blocking device of this application;

[0019] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of the central water-blocking device;

[0020] Figure 4 yes Figure 1 A schematic diagram of the structure of the central grille. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Air conditioners typically draw in outside air through an air intake grille on a vent cover. This grille is exposed to the outside, and rainwater can enter the vent cover due to the air conditioner's suction or the wipers' movement. Water entering the vent cover may be sucked into the air conditioner. Traditional vehicles use sheet metal drainage channels to separate rainwater from airflow, preventing water from entering the air conditioner intake. However, in current designs, some vehicles use a center-mounted air conditioner to save instrument panel space or for left / right-hand drive configurations. In these systems, the blower typically occupies half the air intake area, resulting in a 2-4 times higher airflow velocity compared to a regular air conditioner for the same air volume, drastically increasing the air conditioner's water absorption capacity. Furthermore, many electric vehicles now use a box-type air intake structure instead of the traditional sheet metal drainage channel to save space or cost. This new, narrower structure results in a higher airflow velocity, making rainwater separation even more difficult, leading to frequent problems such as water entering the vehicle or air conditioner malfunction. Once rainwater is sucked into the air conditioner intake, it can cause a series of problems. First, moisture entering the air conditioning system will be blown into the passenger compartment by the airflow, causing the air inside the vehicle to become humid, affecting the comfort of passengers, and may even produce an unpleasant musty smell. Second, moisture may flow through the internal components of the air conditioning system, such as the evaporator, compressor, and electronic control unit, causing short circuits, corrosion, rust, or component damage. In severe cases, it may even lead to the complete failure of the air conditioning system, increasing maintenance costs and vehicle usage risks. More importantly, if the absorbed moisture contains impurities or pollutants, it may also directly harm the air quality inside the vehicle. To solve the above-mentioned water ingress problem, this application proposes the following technical solution.

[0023] See Figures 1 to 3 The water-blocking device 1 includes a cover plate 10 and a box body 20.

[0024] The cover plate 10 is provided with a cover plate air inlet 11. The box body 20 is located on one side of the cover plate 10 and forms an air duct 30 extending along the first direction X with the cover plate 10. The box body 20 includes a first box body 210 and a second box body 220 that communicate with the air duct 30. The first box body 210 and the second box body 220 are arranged along the first direction X. The top opening 211 of the first box body 210 faces the cover plate air inlet 11. The side wall of the second box body 220 near the vehicle is provided with an air conditioning air inlet 221. The air conditioning air inlet 221 faces the second direction Y, wherein the second direction Y intersects with the first direction X.

[0025] Specifically, when the air conditioner is turned on during a rainy day, air and rainwater are drawn together from the air inlet of the cover plate 10 into the air duct 30 below the cover plate 10. The air and rainwater first pass through the first box 210 of the box 20. Under the action of gravity, most of the rainwater falls into the first box 210, and some of the rainwater passes over the second box 220 and falls into the second box 220. The air is drawn into the air conditioner air inlet 221 on the side wall of the second box 220. If the rainwater is to enter the air conditioner air inlet 221, it needs to pass through the second box 220, which prolongs the path of the rainwater to enter the air conditioner air inlet 221. Since the air conditioner air inlet 221 faces the second direction Y, the path of the rainwater is further prolonged, so that most of the rainwater can fall into the first box 210 and the second box 220, which greatly reduces the probability of rainwater entering the air conditioner air inlet 221.

[0026] In one embodiment, the cover plate air inlet 11 can be configured as multiple, for example, two cover plate air inlets 11 or three cover plate air inlets 11, with a gap between adjacent cover plate air inlets 11. Rainwater and air enter the air duct 30 through multiple cover plate air inlets 11, and the gap between two cover plate air inlets 11 can block some rainwater.

[0027] See Figure 3 In one embodiment, the water-blocking device 1 further includes a water-blocking rib 40, which is disposed on the side of the cover plate 10 near the housing 20 and located at the edge of the air inlet 11 of the cover plate.

[0028] Specifically, when rainwater enters the air duct 30, some of the rainwater hangs on the side of the cover plate 10 near the housing 20. Under the action of suction, it moves towards the second housing 220. The water-blocking rib 40 of the water-blocking device 1 is set at the edge of the air inlet 11 of the cover plate to block the water droplets on the side of the cover plate 10 near the housing 20 from moving towards the second housing 220. This allows the rainwater to fall into the first housing 210 along the water-blocking rib 40, reducing the probability of rainwater falling into the second housing 220 along the cover plate 10, and further reducing the probability of rainwater being sucked into the air conditioning inlet 221.

[0029] In one embodiment, the water-blocking device 1 is provided with two water-blocking ribs 40, which are arranged at intervals along the first direction X on the side of the cover plate 10 near the box 20, so that rainwater falls into the first box 210 and the water-blocking ribs 40 increase the water-blocking efficiency of the rainwater.

[0030] In one embodiment, the water-blocking device 1 is provided with a plurality of water-blocking ribs 40, which are arranged at intervals along a first direction X on the side of the cover plate 10 near the housing 20, so that rainwater falls into the first housing 210, thereby increasing the water-blocking efficiency of the water-blocking ribs 40. In another embodiment, the plurality of water-blocking ribs 40 are arranged at intervals along a second direction Y, which also allows rainwater to fall into the first housing 210, increasing the blocking range and thus improving the blocking efficiency.

[0031] See Figure 3 In one embodiment, the distance d1 between the air conditioner air inlet 221 and the cover plate air inlet 11 along the first direction X is greater than 150 mm.

[0032] Specifically, the distance d1 between the air conditioner air inlet 221 and the cover plate air inlet 11 along the first direction X can be 150 mm, 160 mm, 170 mm or 180 mm, etc. The distance d1 between the air conditioner air inlet 221 and the cover plate air inlet 11 along the first direction X is greater than 150 mm. By extending the path of rainwater, the time for rainwater to fall is extended, and rainwater is prevented from being sucked into the air conditioner air inlet 221 before it falls.

[0033] Furthermore, in one embodiment, the water-blocking rib 40 is disposed on the side of the cover plate 10 near the housing 20 and located at the edge of the cover plate air inlet 11, which can also reduce the distance d1 between the air conditioning air inlet 221 and the cover plate air inlet 11 along the first direction X. The distance d1 can also be less than 150 mm. For example, the distance d1 can be 140 mm or 145 mm.

[0034] See Figure 3 and Figure 4 In one embodiment, the water-blocking device 1 further includes a grille 50, which is located inside the air inlet 11 of the cover plate and is fixedly connected to the cover plate 10.

[0035] Specifically, the grille 50 is located at the air inlet of the cover plate 10. The grille 50 can guide the airflow from outside the vehicle, allowing the airflow to enter the air duct 30 more smoothly and orderly. On the other hand, the grille 50 itself will generate a certain resistance to the airflow of rainwater and air, which can slow down the airflow speed to a certain extent and reduce the direct entry of larger foreign objects such as dust and leaves into the air duct 30, playing a preliminary filtering role and helping to protect the air conditioning components.

[0036] In one embodiment, the grille 50 can be a mesh grille 50, with multiple rows and columns of grilles intersecting to form openings, through which air and rainwater enter the air duct 30. In another embodiment, the grille 50 can be a parallel grille 50, with multiple grilles spaced apart in the same direction, through which air and rainwater enter the air duct 30 from the gaps between two grilles.

[0037] See Figure 3 In one embodiment, the water-blocking device 1 further includes a water-blocking step 60, which is located on the side wall of the first housing 210 near the second housing 220, and the top of the water-blocking step 60 is higher than the lowest point of the air conditioning inlet 221. The water-blocking step 60 divides the air duct 30 into a first sub-air duct 31 and a second sub-air duct 32. The first sub-air duct 31 is located above the first housing 210, and the second sub-air duct 32 is located above the second housing 220.

[0038] Specifically, the water-blocking step 60 is located between the first housing 210 and the second housing 220. Air enters the air conditioning inlet 221 from the first sub-air duct 31 into the second sub-air duct 32. Some rainwater is intercepted by the water-blocking step 60 when it enters the second sub-air duct 32 from the first sub-air duct 31. This intercepted rainwater flows into the first housing 210. At the same time, the top of the water-blocking step 60 is higher than the lowest point of the air conditioning inlet 221, preventing it from entering the second housing 220 and the air conditioning inlet 221 through the second sub-air duct 32, thus reducing the probability of water entering the air conditioning inlet 221.

[0039] In one embodiment, the distance between the top of the water-blocking step 60 and the lowest point of the air conditioning inlet 221 is 75 mm. In another embodiment, the distance between the top of the water-blocking step 60 and the lowest point of the air conditioning inlet 221 is greater than 75 mm. For example, the distance between the top of the water-blocking step 60 and the lowest point of the air conditioning inlet 221 can be 76 mm, 77 mm, 78 mm, 79 mm, or 80 mm.

[0040] In one embodiment, the end of the water-blocking step 60 is inclined relative to the horizontal plane, so that the end of the water-blocking step 60 plays a guiding role for rainwater to flow into the first box 210 or the second box 220.

[0041] See Figure 3 In one embodiment, the side wall of the first housing 210 away from the second housing 220 is inclined relative to the cover plate 10, and the height h1 is greater than 50 mm.

[0042] Specifically, the side wall of the first housing 210 away from the second housing 220 is inclined relative to the cover plate 10, so that when air and rainwater enter the air duct 30, they fall onto the side wall of the first housing 210 and then flow from the side wall to the bottom wall of the first housing 210. The height h1 of the first housing 210 is greater than 50 mm, which facilitates earlier interception of rainwater when it falls onto the side wall of the first housing 210, improving the efficiency of rainwater blocking. The height h1 of the first housing 210 can be 51 mm, 52 mm, 55 mm, 60 mm, or 65 mm, etc. It should be noted that this application does not limit the height h1 of the first housing 210; the height h1 of the first housing 210 can be any value greater than 50 mm.

[0043] In another embodiment, the side wall of the first housing 210 is extended away from the second housing 220, and the length of the first sub-air duct 31 is extended. The height h1 of the first housing 210 can also be less than 50 mm, so that rainwater falls into the first housing 210.

[0044] See Figure 3 In one embodiment, the top opening 211 of the first box 210 is higher than the top opening 222 of the second box 220, and the bottom wall of the second box 220 is lower than the bottom wall of the first box 210.

[0045] Specifically, the first box 210 and the second box 220 need to be of a certain height for water blocking. At the same time, the top opening 211 of the first box 210 is higher than the top opening 222 of the second box 220, and the bottom wall of the first box 210 is higher than the bottom wall of the second box 220. This makes it easier for most of the rainwater to fall into the top opening 211 of the first box 210, and the remaining small part of the rainwater falls into the top opening 222 of the second box 220, thereby increasing the efficiency of the water blocking device 1 in blocking rainwater.

[0046] In another embodiment, the bottom wall of the second box 220 is at the same position as the bottom wall of the first box 210, or the bottom wall of the second box 220 is higher than the bottom wall of the first box 210. When the first box 210 blocks more rainwater, the height of the second box 220 is reduced, the volume occupied by the second box 220 is reduced, and the compactness of the water blocking device 1 is improved.

[0047] See Figure 3 In one embodiment, the bottom wall of the first housing 210 is provided with a first drain hole 212 for draining water from the first housing 210. Specifically, rainwater falls into the first housing 210 from the air duct 30, flows into the bottom wall of the first housing 210, and then drains out from the first drain hole 212, and then flows into the front compartment from the first drain hole 212 and is discharged from the front compartment.

[0048] In one embodiment, the bottom wall of the first housing 210 is inclined relative to the horizontal plane, so that the bottom wall of the first housing 210 forms a guide surface, and rainwater flows to the lower part of the first housing 210 and is discharged from the first drain hole 212, thereby improving drainage efficiency.

[0049] See Figure 3 In one embodiment, the bottom wall of the second housing 220 is provided with a second drain hole 223, which is close to the side wall where the air conditioner inlet 221 is located.

[0050] Specifically, when the air conditioner is turned on to the maximum setting, rainwater in the second housing 220 may be drawn back into the air conditioner inlet 221. The second drain hole 223 is located on the side wall where the air conditioner inlet 221 is located. The rainwater is drawn towards the air conditioner inlet 221 by the suction of the air conditioner and then discharged from the second drain hole 223, thus avoiding being drawn into the air conditioner inlet 221.

[0051] In one embodiment, the bottom wall of the second housing 220 is inclined relative to the horizontal plane, so that the bottom wall of the second housing 220 forms a guide surface, which guides rainwater to the lower part of the bottom wall of the second housing 220 and then discharges it from the second drain hole 223, thereby improving drainage efficiency.

[0052] This application also protects a motor vehicle that includes a water-blocking device 1 as described in any of the above claims. This motor vehicle includes gasoline-powered vehicles, electric vehicles, hybrid vehicles, and hydrogen fuel cell vehicles, and also includes sedans, SUVs, and commercial vehicles, etc. It should be noted that this application does not limit the type of motor vehicle. The specific structure of the water-blocking device 1 is as described above and will not be repeated here.

[0053] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A water-blocking device for motor vehicles, characterized in that, include: Cover plate, with cover plate air inlet; The housing, located on one side of the cover plate, forms an air duct extending along a first direction with the cover plate. The housing includes a first housing and a second housing that communicate with the air duct. The first housing and the second housing are arranged along the first direction. The top opening of the first housing faces the air inlet of the cover plate. The second housing is provided with an air conditioning inlet on the side wall near the vehicle. The air conditioning inlet faces a second direction, wherein the second direction intersects with the first direction.

2. The water-blocking device according to claim 1, characterized in that, The water-blocking device also includes: A water-blocking rib is provided on the side of the cover plate near the housing, and located at the edge of the air inlet of the cover plate.

3. The water-blocking device according to claim 2, characterized in that, The distance between the air conditioner air inlet and the cover plate air inlet along the first direction is greater than 150 mm.

4. The water-blocking device according to claim 1, characterized in that, The water-blocking device also includes: The grille is located inside the air inlet of the cover plate and is fixedly connected to the cover plate.

5. The water-blocking device according to claim 1, characterized in that, The water-blocking device also includes: A water-blocking step is located on the side wall of the first housing near the second housing, and the top of the water-blocking step is higher than the lowest point of the air conditioning inlet; wherein, the water-blocking step divides the air duct into a first sub-air duct and a second sub-air duct, the first sub-air duct being located above the first housing and the second sub-air duct being located above the second housing.

6. The water-blocking device according to claim 1, characterized in that, The side wall of the first housing away from the second housing is inclined relative to the cover plate, and its height is greater than 50 mm.

7. The water-blocking device according to claim 1, characterized in that, The top opening of the first box is higher than the top opening of the second box, and the bottom wall of the second box is lower than the bottom wall of the first box.

8. The water-blocking device according to claim 7, characterized in that, The bottom wall of the first box is provided with a first drain hole for draining water from the first box.

9. The water-blocking device according to claim 7, characterized in that, The bottom wall of the second housing is provided with a second drain hole, which is close to the side wall where the air conditioner air inlet is located.

10. A motor vehicle, characterized in that, Includes the water-blocking device as described in any one of claims 1 to 9.

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