A roof drainage structure and vehicle
By setting a sealing structure at the joint between the windshield and the front crossbeam of the roof to form a drainage channel, the problem of water entering the lidar area during rainy days is solved, achieving efficient drainage and reducing the probability of water ingress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GEELY HLDG GRP CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-08-04
AI Technical Summary
The lidar area on the front roof beam is prone to water ingress during high-speed driving in rainy weather, which can lead to water ingress problems and may even enter the passenger compartment.
A roof drainage structure is designed. By setting a sealing structure at the joint between the windshield and the front crossbeam of the roof, and forming a drainage channel, water that seeps into the front crossbeam of the roof from the gap between the decorative cover and the windshield can flow into the drainage channel and then flow to the left and right sides of the windshield through the drainage channel.
This effectively reduces the probability of water ingress in the area where the detection device is installed on the front crossbeam of the roof, improves drainage efficiency and effectiveness, and prevents water from seeping into the crew compartment.
Smart Images
Figure CN224589241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and more specifically, to a roof drainage structure and a vehicle. Background Technology
[0002] With the rapid development of autonomous driving assistance technology, the demand for intelligent driving system vehicles in the automotive market is increasing day by day, and the corresponding vehicle-mounted LiDAR technology is also developing rapidly.
[0003] Currently, forward-looking LiDAR systems are typically mounted on the front roof crossbeam of a vehicle using brackets to ensure effective detection while the car is in motion. However, when a car is traveling at high speed in rainy weather, the high water pressure can cause rainwater to enter the dry area of the front roof crossbeam (i.e., the area on the front roof crossbeam covered by components such as the LiDAR housing and the windshield). This can lead to water ingress into the LiDAR area, and in some cases, water may even flow into the passenger compartment from the connection points between the front roof crossbeam and other components. Utility Model Content
[0004] The problem this invention addresses is: how to reduce the probability of water ingress into the lidar area of the front roof beam.
[0005] To solve the above problems, this utility model provides a top cover drainage structure and a vehicle.
[0006] In a first aspect, the present invention provides a roof drainage structure, including a roof front crossbeam, a decorative cover and a windshield. The windshield overlaps the end of the roof front crossbeam facing the front of the vehicle and is used to cover the detection device. The decorative cover is sealed to the roof front crossbeam through a first sealing structure. The decorative cover is located above the roof front crossbeam and is sealed to the roof front crossbeam through a second sealing structure. The front crossbeam of the roof, the decorative cover, the windshield, the first sealing structure, and the second sealing structure form a first drainage channel, and the two ends of the first drainage channel along the left and right directions of the vehicle are used to extend to the side structure of the vehicle respectively.
[0007] Optionally, the end of the first drainage channel facing the front of the vehicle is lower than the end of the first drainage channel facing the rear of the vehicle.
[0008] Optionally, the first sealing structure includes a first sealing portion and a second sealing portion. The first sealing portion extends from one end of the windshield to the other end along the left-right direction. The second sealing portion is disposed at both ends of the first sealing portion along the left-right direction and extends along the edge of the windshield near the side structure.
[0009] Optionally, the second sealing structure includes a third sealing portion and a fourth sealing portion. The third sealing portion is an annular structure with an opening located on the portion of the third sealing portion that forms the first drainage channel. The fourth sealing portion is located within the area enclosed by the third sealing portion and is disposed opposite to the opening. There is a gap between the fourth sealing portion and the third sealing portion. The decorative cover has a through hole for exposing the probe head of the detection device. The projections of the fourth sealing portion, the opening, and the through hole on the front crossbeam of the top cover are aligned along the longitudinal direction of the vehicle.
[0010] Optionally, the fourth sealing portion has a larger dimension in the left-right direction than the opening in the left-right direction, and the opening is located between the two ends of the fourth sealing portion in the left-right direction.
[0011] Optionally, the roof drainage structure further includes a canopy glass overlapping the front crossbeam of the roof. The canopy glass is sealed to the front crossbeam of the roof via a third sealing structure and is spaced apart from the decorative cover and the windshield. The windshield is also sealed to the front crossbeam of the roof via a fourth sealing structure. The fourth sealing structure is located between the first sealing structure and the third sealing structure and on both sides of the second sealing structure along the left-right direction. The canopy glass, the front crossbeam of the roof, the decorative cover, the second sealing structure, the third sealing structure, and the fourth sealing structure form a second drainage channel, and the two ends of the second drainage channel along the left-right direction are used to extend to the side structure respectively.
[0012] Optionally, the fourth sealing structure includes two sealing sections located on both sides of the third sealing part along the left-right direction, each sealing section being spaced apart from the second sealing structure, and the first drainage channel and the second drainage channel being connected through the gap between each sealing section and the second sealing structure.
[0013] Optionally, each of the sealing segments includes a fifth sealing portion and a sixth sealing portion, the fifth sealing portion extending along the left-right direction, one end of the sixth sealing portion being connected to the end of the fifth sealing portion near the second sealing structure, and the other end of the sixth sealing portion extending away from the fifth sealing portion and towards the first sealing structure.
[0014] Optionally, the first sealing structure is glass glue, and it is used to fill the gap at the joint between the front crossbeam of the roof and the windshield. And / or, the second sealing structure is a sealing strip, used to seal the gap between the decorative cover and the front crossbeam of the top cover; And / or, the third sealing structure is glass glue, and is used to fill the gap at the overlap of the front crossbeam of the top cover and the skylight glass; And / or, the fourth sealing structure is glass glue, used to fill the gap at the joint between the front crossbeam of the roof and the windshield.
[0015] Secondly, this utility model provides a vehicle including the top cover drainage structure described above.
[0016] The beneficial effects of the roof drainage structure of this utility model are as follows: By setting a first sealing structure at the overlap between the windshield and the front crossbeam of the roof, and setting a second sealing structure at the connection between the front crossbeam of the roof and the decorative cover used to cover detection devices such as lidar, the front crossbeam of the roof, the decorative cover, the windshield, the first sealing structure and the second sealing structure are arranged to form a first drainage channel, so that water that seeps into the front crossbeam of the roof from the assembly gap between the decorative cover and the windshield can flow into the first drainage channel; at the same time, by extending the left and right ends of the first drainage channel to the side structure of the vehicle, water flowing onto the front crossbeam of the roof can flow through the first drainage channel to the left and right sides of the windshield, so as to be discharged between the windshield and the side structure, thereby avoiding the formation of water accumulation and seepage into the area on the front crossbeam of the roof used to install the detection device, thereby reducing the probability of water entering the area on the front crossbeam of the roof used to install the detection device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the top cover drainage structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the drainage path of the top cover drainage structure in an embodiment of this utility model; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a top view of the top cover drainage structure in an embodiment of this utility model; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at point BB; Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at the CC section.
[0018] Explanation of reference numerals in the attached figures: 1. Front crossbeam of the roof; 11. Outer plate of the crossbeam; 12. Inner plate of the crossbeam; 13. Reinforcing plate of the crossbeam; 2. Decorative cover; 21. Through hole; 3. Front windshield; 4. Sunroof glass; 51. First sealing structure; 511. First sealing part; 512. Second sealing part; 52. Second sealing structure; 521. Third sealing part; 522. Fourth sealing part; 523. Opening; 53. Third sealing structure; 54. Fourth sealing structure; 541. Fifth sealing part; 542. Sixth sealing part; 6. Mounting cavity; 7. First drainage channel; 8. Second drainage channel; 9. Shelter; 100. Left side enclosure structure; 200. Right side enclosure structure. Detailed Implementation
[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.
[0020] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0022] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0023] In related technologies, forward-looking lidar is typically mounted on the front roof crossbeam of a vehicle using a bracket to ensure its detection effectiveness while the car is in motion. However, when a car is driving at high speed in rainy weather, the high water pressure poses a risk of rainwater entering the dry area of the front roof crossbeam (i.e., the area on the front roof crossbeam covered by components such as the lidar housing and the windshield). This can lead to water ingress into the lidar area, and water may even flow into the passenger compartment from the connection between the front roof crossbeam and other components.
[0024] To address the problems existing in the aforementioned related technologies, this utility model provides a top cover drainage structure and a vehicle.
[0025] Combination Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the present invention provides a roof drainage structure including a roof front crossbeam 1, a decorative cover 2 and a windshield 3. The windshield 3 overlaps the end of the roof front crossbeam 1 facing the front of the vehicle and is sealed to the roof front crossbeam 1 through a first sealing structure 51. The decorative cover 2 is located above the roof front crossbeam 1 and covers the detection device. The decorative cover 2 is sealed to the roof front crossbeam 1 through a second sealing structure 52. The front crossbeam 1 of the roof, the decorative cover 2, the windshield 3, the first sealing structure 51 and the second sealing structure 52 form a first drainage channel 7, and the two ends of the first drainage channel 7 along the left and right directions of the vehicle are used to extend to the side structure of the vehicle respectively.
[0026] It should be noted that the left and right directions of the vehicle refer to... Figure 1 The Y-axis direction, also known as the left-right direction, corresponds to the vehicle's forward-backward direction. Figure 1 The X-axis direction, also known as the front-to-back direction, refers to the vehicle's vertical direction. Figure 1 The Z-axis direction is referred to as the up-down direction. In addition, the side of components such as the front crossbeam 1 of the roof, the decorative cover 2, and the windshield 3 facing inwards is the inner side of the component, and conversely, the side of the component facing outwards is the outer side of the component.
[0027] It should also be noted that the front crossbeam 1 of the roof, that is, the crossbeam structure near the front of the vehicle roof, is connected to the upper end of the windshield 3. Furthermore, since the windshield 3 is angled downwards, the upper end of the windshield 3 is also its rear end, and correspondingly, the lower end of the windshield 3 is also its front end. For example... Figure 1As shown, the side structure of the vehicle includes a left side structure 100 and a right side structure 200. The left ends of the front crossbeam 1 of the roof and the windshield 3 are respectively connected to the left side structure 100, and the right ends of the front crossbeam 1 of the roof and the windshield 3 are respectively connected to the right side structure 200.
[0028] Specifically, the decorative cover 2 is located above the middle part of the front crossbeam 1 of the roof and behind the windshield 3. The overlap between the windshield 3 and the front crossbeam 1 is sealed by a first sealing structure 51, and the connection between the decorative cover 2 and the front crossbeam 1 is sealed by a second sealing structure 52. In this embodiment, the sealing structure can be, for example, sealant / sealing strip. The decorative cover 2 can be a decorative panel structure covering a detection device such as a lidar sensor. In this case, the entire detection device is installed within the mounting cavity 6 formed by the front crossbeam 1 and the decorative cover 2. Alternatively, the decorative cover 2 can be a decorative outer shell of the detection device. In this case, the mounting cavity 6 formed by the front crossbeam 1 and the decorative cover 2 is used to install the detection body of the detection device, excluding the decorative outer shell. Since the decorative cover 2 is a shell structure that covers the front crossbeam 1 of the top cover, the second sealing structure 52 can be an annular structure with a ring around the edge of the decorative cover 2. The front end of this annular structure is used to form the first drainage channel 7. In one example, the second sealing structure 52 can be a one-piece structure; in another example, the second sealing structure 52 can be a multi-segment structure. No specific limitation is made here. (Reference) Figure 5As shown, there is a gap between the inner side (or rear side) of the windshield 3 and the front end of the roof front crossbeam 1. The first sealing structure 51 can be set in this gap, and the first sealing structure 51 extends from the left end to the right end of the windshield 3 in the left-right direction. Since the decorative cover 2 is located on the rear side of the windshield 3, the second sealing structure 52 is located on the rear side of the first sealing structure 51. At the same time, the first sealing structure 51 and the upper edge of the windshield 3 are a certain distance apart. This distance creates a gap between the first sealing structure 51 and the second sealing structure 52 to form a cavity. The roof front crossbeam 1, the decorative cover 2, the windshield 3, the first sealing structure 51 and the second sealing structure 52 form a first drainage channel 7. The first drainage channel 7 extends from the left end to the right end of the windshield 3, so that the left and right ends of the first drainage channel 7 extend to the side structure of the vehicle, that is, the left end of the first drainage channel 7 extends to the left side structure 100 and the right end extends to the right side structure 200. Additionally, a shielding element 9 may be provided at the gap between the decorative cover 2 and the windshield 3, and between the windshield 3 and the panoramic glass 4 (described later) or the outer panel of the roof (described later) to cover the assembly gap. When the water pressure of the rainwater impacting the shielding element 9 is high, the rainwater may seep from the shielding element 9 into the aforementioned gap, and then seep into the front crossbeam 1 of the roof. The gap between the decorative cover 2 and the windshield 3 is connected to the first drainage channel 7, so that the water that seeps into the gap from the shielding element 9 can flow into the first drainage channel 7 and flow through the first drainage channel 7 to the left and right sides of the windshield 3, so as to be discharged from the gap between the windshield 3 and the side structure.
[0029] In this embodiment, a first sealing structure 51 is provided at the joint between the windshield 3 and the front crossbeam 1 of the roof, and a second sealing structure 52 is provided at the connection between the front crossbeam 1 of the roof and the decorative cover 2 used to cover a detection device such as a lidar. The front crossbeam 1 of the roof, the decorative cover 2, the windshield 3, the first sealing structure 51 and the second sealing structure 52 are arranged to form a first drainage channel 7, so that water that seeps into the front crossbeam 1 from the assembly gap between the decorative cover 2 and the windshield 3 can flow into the first drainage channel 7. At the same time, by extending the left and right ends of the first drainage channel 7 to the side structure of the vehicle, water flowing onto the front crossbeam 1 of the roof can flow through the first drainage channel 7 to the left and right sides of the windshield 3 and be discharged between the windshield 3 and the side structure, thereby avoiding the formation of water accumulation and seepage into the area of the front crossbeam 1 of the roof used to install the detection device, and thus reducing the probability of water entering the area of the front crossbeam 1 of the roof used to install the detection device.
[0030] Optionally, the end of the first drainage channel 7 facing the front of the vehicle is lower than the end of the first drainage channel 7 facing the rear of the vehicle.
[0031] In this optional embodiment, the bottom wall of the first drainage channel 7 is inclined with a lower front end and a higher rear end, and the bottom wall of the first drainage channel 7 is located on the upper end face of the front crossbeam 1 of the roof. That is, the upper end face of the front crossbeam 1 of the roof is inclined with a lower front end and a higher rear end. This arrangement facilitates the collection of water flowing into the first drainage channel 7 at the front end of the first drainage channel 7, thereby accelerating the flow of water to the left and right sides of the front windshield 3, and thus improving drainage efficiency and drainage effect.
[0032] Furthermore, the front crossbeam 1 of the roof has a curved beam structure, and both ends of the front crossbeam 1 in the left-right direction are lower than the middle part of the front crossbeam 1. In this way, on the one hand, water accumulation at the front end of the first drainage channel 7 can be avoided, and on the other hand, the water flowing into the first drainage channel 7 and the water converging at the front end of the first drainage channel 7 can quickly flow to the left and right sides of the windshield 3, so as to further improve drainage efficiency and drainage effect.
[0033] Optionally, combined Figure 2 As shown, the first sealing structure 51 includes a first sealing part 511 and a second sealing part 512. The first sealing part 511 extends from one end of the front windshield 3 to the other end in the left-right direction. The second sealing part 512 is disposed at both ends of the first sealing part 511 in the left-right direction and extends along the edge of the front windshield 3 near the side structure.
[0034] It should be noted that the side of the windshield 3 closest to the left side structure 100 is the left side of the windshield 3, and the side of the windshield 3 closest to the right side structure 200 is the right side of the windshield 3.
[0035] In this optional embodiment, the first sealing structure 51 may include a first sealing part 511 and two second sealing parts 512, wherein both the first sealing part 511 and the second sealing part 512 are elongated structures, wherein, as Figure 2As shown, the first sealing part 511 extends from the left end to the right end of the windshield 3 in a left-right direction, while two second sealing parts 512 are respectively connected to the left and right ends of the first sealing part 511. The second sealing part 512 located at the left end of the first sealing part 511 extends along the left edge of the windshield 3, and the second sealing part 512 located at the right end of the first sealing part 511 extends along the right edge of the windshield 3. This expands the sealing range of the first sealing structure 51, improving the sealing effect, and also allows the first sealing part 511 and the second sealing part 512 to guide the water flowing into the first drainage channel 7 to the left and right sides of the windshield 3, improving drainage convenience. In addition, since the rear end of the windshield 3 has a notch to avoid the decorative cover 2, the first sealing part 511 is extended from the left end to the right end of the windshield 3 in the left-right direction. On the one hand, it can reduce the material consumption of the first sealing structure 51 while achieving the sealing effect. On the other hand, it can increase the distance between the first sealing structure 51 and the upper end of the windshield 3, thereby increasing the cavity volume of the first drainage channel 7. This allows the water flowing into the first drainage channel 7 to flow through the first drainage channel 7 to the left and right sides of the windshield 3 and be discharged.
[0036] Optionally, combined Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the second sealing structure 52 includes a third sealing part 521 and a fourth sealing part 522. The third sealing part 521 has an annular structure with an opening 523. The opening 523 is located on the part of the third sealing part 521 that forms the first drainage channel 7. The fourth sealing part 522 is located in the area enclosed by the third sealing part 521 and is opposite to the opening 523. There is a gap between the fourth sealing part 522 and the third sealing part 521. The decorative cover 2 is provided with a through hole 21 for exposing the probe head of the detection device. The projections of the fourth sealing part 522, the opening 523 and the through hole 21 on the front crossbeam 1 of the top cover are aligned in the front-rear direction.
[0037] In this optional embodiment, the third sealing part 521 can be a ring structure with an opening 523, or it can be a ring structure with an opening 523 formed by multiple sealing segments. No specific limitation is made here. The opening 523 is located on the portion of the third sealing part 521 that forms the first drainage channel 7, that is, the front end of the ring structure has an opening 523, and this opening 523 communicates with the first drainage channel 7. The fourth sealing part 522 is located within the area enclosed by the third sealing part 521 and has a gap between it and the third sealing part 521. Simultaneously, the fourth sealing part 522 is disposed opposite to the opening 523, such that the space enclosed by the third sealing part 521 communicates with the first drainage channel 7 through the gap between the fourth sealing part 522 and the third sealing part 521 and the opening 523. Since the space enclosed by the third sealing part 521 is located within the mounting cavity 6, the mounting cavity 6 communicates with the first drainage channel 7 at the opening 523. Furthermore, the projections of the fourth sealing part 522, the opening 523, and the through hole 21 on the front crossbeam 1 of the top cover are aligned in the front-rear direction. That is, the fourth sealing part 522 and the opening 523 are located in the area below the through hole 21 on the decorative cover 2, and the fourth sealing part 522 and / or the opening 523 can be located directly below the through hole 21, or on the front or rear side directly below the through hole 21. In this way, when water seeps into the mounting cavity 6 from the through hole 21 of the decorative cover 2, it can flow into the first drainage channel 7 through the opening 523, flow through the first drainage channel 7 to the left and right sides of the windshield 3, and then be discharged, thereby further reducing the probability of water leakage in the area on the front crossbeam 1 of the top cover used to install the detection device. In addition, since the inner side of the opening 523 of the third sealing part 521 is directly opposite the fourth sealing part 522, water in the first drainage channel 7 is less likely to enter the mounting cavity 6 through the opening 523.
[0038] Optionally, combined Figure 3 As shown, the dimension of the fourth sealing part 522 in the left-right direction is larger than the dimension of the opening 523 in the left-right direction, and the opening 523 is located between the two ends of the fourth sealing part 522 in the left-right direction. That is, the left and right ends of the fourth sealing part 522 both exceed the opening 523, so that the fourth sealing part 522 can completely cover the opening 523, thereby allowing the fourth sealing part 522 to more effectively prevent water in the first drainage channel 7 from flowing into the mounting cavity 6 from the opening 523.
[0039] Optionally, combined Figure 3 , Figure 4 and Figure 6As shown, the roof drainage structure also includes a skylight glass 4 that overlaps the front crossbeam 1 of the roof. The skylight glass 4 is sealed to the front crossbeam 1 of the roof through a third sealing structure 53. The windshield glass 3 is also sealed to the front crossbeam 1 of the roof through a fourth sealing structure 54. The fourth sealing structure 54 is located between the first sealing structure 51 and the third sealing structure 53 and on both sides of the second sealing structure 52 in the left and right direction. The skylight glass 4, the front crossbeam 1 of the roof, the decorative cover 2, the second sealing structure 52, the third sealing structure 53 and the fourth sealing structure 54 form a second drainage channel 8, and the two ends of the second drainage channel 8 in the left and right direction are used to extend to the side structure respectively.
[0040] In this optional embodiment, the roof drainage structure can be applied to vehicles equipped with a panoramic glass 4. In this case, the front end of the panoramic glass 4 overlaps the rear end of the front crossbeam 1 of the roof and is sealed to the front crossbeam 1 of the roof through the third sealing structure 53. The front crossbeam 1 of the roof is also sealed to the windshield 3 through the fourth sealing structure 54. At the same time, the panoramic glass 4, the front crossbeam 1 of the roof, the decorative cover 2, the third sealing structure 53, and the fourth sealing structure 54 form a second drainage channel 8. Specifically, the third sealing part 521 of the second sealing structure 52 is annular, and the fourth sealing structure 54 may include the third sealing part 52 located in the annular shape. The two sealing strips on the left and right sides can extend to the side structures at both ends in the left and right directions, and together with the third sealing part 521, they form a baffle on the front side of the second drainage channel 8. The third sealing structure 53 can be a sealing strip extending to the side structures at both ends in the left and right directions, and the third sealing structure 53 forms a baffle on the rear side of the second drainage channel 8. The second drainage channel 8 extends from the left end of the windshield 3 to the right end, so that the left and right ends of the second drainage channel 8 extend to the side structure of the vehicle, that is, the left end of the second drainage channel 8 extends to the left side structure 100 and the right end extends to the right side structure 200. In addition, a shielding part 9 is provided at the gaps between the decorative cover 2 and the sunroof 4, between the decorative cover 2 and the windshield 3, and between the windshield 3 and the sunroof 4 to cover the assembly gaps. When the water pressure of rainwater impacting the shield 9 is high, the rainwater may seep from the shield 9 into the aforementioned gap, and then into the front crossbeam 1 of the roof. The gap between the decorative cover 2 and the skylight glass 4 is connected to the second drainage channel 8, so that the water that seeps from the shield 9 at the rear end of the decorative cover 2 into the front crossbeam 1 of the roof can flow into the second drainage channel 8, and then flow through the second drainage channel 8 to the left and right sides of the windshield 3, so as to be discharged from the windshield 3 and the side structure, thereby further reducing the probability of water leakage in the area on the front crossbeam 1 of the roof used to install the detection device.
[0041] Optionally, combined Figure 3As shown, the fourth sealing structure 54 includes two sealing sections located on both sides of the third sealing part 521 in the left-right direction. Each sealing section is spaced apart from the second sealing structure 52. The first drainage channel 7 and the second drainage channel 8 are connected through the gap between each sealing section and the second sealing structure 52.
[0042] In this optional embodiment, for the fourth sealing structure 54 disposed on the left side of the decorative cover 2 (that is, the left side of the annular third sealing portion 521), the left end of the fourth sealing structure 54 extends to the left side enclosure structure 100 in the left-right direction, and the right end extends to a position close to the second sealing structure 52, and is spaced apart from the second sealing structure 52, so that the second drainage channel 8 on the left side of the decorative cover 2 is connected to the first drainage channel 7; for the fourth sealing structure 54 disposed on the right side of the decorative cover 2 (that is, the right side of the annular third sealing portion 521), the right end of the fourth sealing structure 54 extends to the right side enclosure structure 200 in the left-right direction, and the left end extends to a position close to the second sealing structure 52, and is spaced apart from the second sealing structure 52, so that the second drainage channel 8 on the right side of the decorative cover 2 is connected to the first drainage channel 7. In this way, the water flowing into the second drainage channel 8 can be diverted at the gap between the fourth sealing structure 54 and the second sealing structure 52. Part of the water flows through the second drainage channel 8 to the left and right sides of the windshield 3 and is discharged, while the other part of the water flows into the first drainage channel 7, flows through the first drainage channel 7 to the left and right sides of the windshield 3 and is discharged. Moreover, the diversion can increase the fluidity of the water flow, making it easier to discharge the water and thus improving the drainage effect.
[0043] Optionally, combined Figure 2 As shown, each sealing section includes a fifth sealing part 541 and a sixth sealing part 542. The fifth sealing part 541 extends in a left-right direction. One end of the sixth sealing part 542 is connected to the end of the fifth sealing part 541 near the second sealing structure 52, and the other end of the sixth sealing part 542 extends away from the fifth sealing part 541 and towards the first sealing structure 51. That is, the sixth sealing part 542 is inclined approximately downwards and forwards. In this way, the water flowing into the second drainage channel 8 can be split at the connection between the fifth sealing part 541 and the sixth sealing part 542. Part of the water flows through the second drainage channel 8 to the left and right sides of the windshield 3 and is discharged, while the other part of the water can flow into the first drainage channel 7 under the guidance of the sixth sealing part 542, and then flow through the first drainage channel 7 to the left and right sides of the windshield 3 and is discharged.
[0044] Optionally, the first sealing structure 51 and / or the fourth sealing structure 54 are silicone sealant, used to fill the gaps at the overlap between the front crossbeam 1 of the roof and the windshield 3. In this way, sealing the front crossbeam 1 of the roof and the windshield 3 by bonding them with adhesive and inexpensive silicone sealant not only improves the sealing effect and reduces production costs, but also enhances the stability of the roof structure by forming a bond between the front crossbeam 1 of the roof and the windshield 3.
[0045] Optionally, the second sealing structure 52 is a sealing strip, used to seal the gap between the decorative cover 2 and the front crossbeam 1 of the top cover. In this way, using a sealing strip as the second sealing structure 52 to seal the gap between the front crossbeam 1 of the top cover and the decorative cover 2 not only provides a good sealing effect and high economic efficiency, but also allows for adaptive cutting according to decorative covers 2 of different sizes and shapes, improving the versatility and ease of assembly of the second sealing structure 52.
[0046] Optionally, the third sealing structure 53 is glass glue, used to fill the gap at the overlap between the front crossbeam 1 of the roof and the skylight glass 4. In this way, sealing the front crossbeam 1 and the skylight glass 4 by bonding them with adhesive and inexpensive glass glue not only improves the sealing effect and reduces production costs, but also enhances the stability of the roof structure by forming a bond between the front crossbeam 1 and the skylight glass 4.
[0047] Furthermore, combined Figure 5 As shown, the front crossbeam 1 of the roof includes an outer crossbeam plate 11, an inner crossbeam plate 12, and a reinforcing plate 13. The outer crossbeam plate 11, the decorative cover 2, the windshield 3, the first sealing structure 51, and the second sealing structure 52 form a first drainage channel 7. The outer crossbeam plate 11 covers the inner crossbeam plate 12 and forms a cavity with it. The reinforcing plate 13 is located in the cavity, and the projection of the decorative cover 2 on the outer crossbeam plate 11 covers the projection of the reinforcing plate 13 on the outer crossbeam plate 11. That is, the reinforcing plate 13 is located directly below the decorative cover 2. In this way, by setting the reinforcing plate 13 in the cavity of the front crossbeam 1 and placing it directly below the decorative cover 2, the structural strength of the part of the front crossbeam 1 used to support the detection device is improved, ensuring the stability of the detection device when installed on the front crossbeam 1.
[0048] Optionally, the roof drainage structure also includes a roof outer panel, which is integrally connected to the end of the crossbeam outer panel 11 facing the rear direction of the vehicle. The roof outer panel, the crossbeam outer panel 11, the decorative cover 2, the windshield 3 and the fourth sealing structure 54 form a second drainage channel 8, and the two ends of the second drainage channel 8 in the left and right directions are used to extend to the side structure respectively.
[0049] In this optional embodiment, the roof drainage structure can be applied to vehicles without a panoramic sunroof 4. In this case, the outer beam plate 11 of the roof front crossbeam 1 forms an integral structure with the roof outer plate, and the roof outer plate, the crossbeam outer plate 11, the decorative cover 2, the windshield 3, and the fourth sealing structure 54 form a second drainage channel 8. Moreover, the left and right ends of the second drainage channel 8 extend to the side structure of the vehicle, that is, the left end of the second drainage channel 8 extends to the left side structure 100, and the right end extends to the right side structure 200. In addition, a shielding member 9 is provided at the gaps between the decorative cover 2 and the roof outer plate, between the decorative cover 2 and the windshield 3, and between the windshield 3 and the roof outer plate to cover the assembly gaps. When the water pressure of rainwater impacting the shield 9 is high, the rainwater may seep from the shield 9 into the aforementioned gap, and then into the front crossbeam 1 of the roof. The gap between the decorative cover 2 and the outer panel of the roof forms part of the second drainage channel 8, allowing the water that seeps from the shield 9 at the rear end of the decorative cover 2 into the front crossbeam 1 of the roof to flow into the second drainage channel 8, and then flow through the second drainage channel 8 to the left and right sides of the windshield 3, so as to be discharged from between the windshield 3 and the side structure, thereby further reducing the probability of water leakage in the area on the front crossbeam 1 of the roof used to install the detection device.
[0050] This utility model provides a vehicle including a roof drainage structure as described above.
[0051] The beneficial effects of the vehicle in this embodiment are the same as those of the top cover drainage structure described above, and will not be repeated here.
[0052] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A top cover drainage structure, characterized in that, It includes a front crossbeam (1), a decorative cover (2), and a windshield (3). The windshield (3) overlaps the front crossbeam (1) facing the front of the vehicle and is sealed to the front crossbeam (1) through a first sealing structure (51). The decorative cover (2) is located above the front crossbeam (1) and is used to cover the detection device. The decorative cover (2) is sealed to the front crossbeam (1) through a second sealing structure (52). The front crossbeam (1), the decorative cover (2), the windshield (3), the first sealing structure (51) and the second sealing structure (52) form a first drainage channel (7), and the first drainage channel (7) extends to the side structure of the vehicle at both ends along the left and right directions of the vehicle.
2. The top cover drainage structure according to claim 1, characterized in that, The end of the first drainage channel (7) facing the front of the vehicle is lower than the end of the first drainage channel (7) facing the rear of the vehicle.
3. The top cover drainage structure according to claim 1, characterized in that, The first sealing structure (51) includes a first sealing part (511) and a second sealing part (512). The first sealing part (511) extends from one end of the windshield (3) to the other end along the left-right direction. The second sealing part (512) is disposed at both ends of the first sealing part (511) along the left-right direction and extends along the edge of the windshield (3) near the side structure.
4. The top cover drainage structure according to claim 1, characterized in that, The second sealing structure (52) includes a third sealing part (521) and a fourth sealing part (522). The third sealing part (521) has an annular structure with an opening (523). The opening (523) is located on the part of the third sealing part (521) used to form the first drainage channel (7). The fourth sealing part (522) is located in the area enclosed by the third sealing part (521) and is opposite to the opening (523). There is a gap between the fourth sealing part (522) and the third sealing part (521). The decorative cover (2) is provided with a through hole (21) for exposing the probe head of the detection device. The projections of the fourth sealing part (522), the opening (523) and the through hole (21) on the front crossbeam (1) of the top cover are aligned along the front-rear direction of the vehicle.
5. The top cover drainage structure according to claim 4, characterized in that, The fourth sealing part (522) is larger in the left-right direction than the opening (523) in the left-right direction, and the opening (523) is located between the two ends of the fourth sealing part (522) in the left-right direction.
6. The top cover drainage structure according to claim 4, characterized in that, It also includes a skylight glass (4) that overlaps the front crossbeam (1) of the roof. The skylight glass (4) is sealed to the front crossbeam (1) of the roof through a third sealing structure (53). The windshield glass (3) is also sealed to the front crossbeam (1) of the roof through a fourth sealing structure (54). The fourth sealing structure (54) is located between the first sealing structure (51) and the third sealing structure (53) and on both sides of the second sealing structure (52) along the left and right direction. The skylight glass (4), the front crossbeam (1) of the roof, the decorative cover (2), the second sealing structure (52), the third sealing structure (53) and the fourth sealing structure (54) form a second drainage channel (8). The two ends of the second drainage channel (8) along the left and right direction are used to extend to the side structure respectively.
7. The top cover drainage structure according to claim 6, characterized in that, The fourth sealing structure (54) includes two sealing sections located on both sides of the third sealing part (521) along the left-right direction. Each sealing section is spaced apart from the second sealing structure (52). The first drainage channel (7) and the second drainage channel (8) are connected through the gap between each sealing section and the second sealing structure (52).
8. The top cover drainage structure according to claim 7, characterized in that, Each of the sealing segments includes a fifth sealing portion (541) and a sixth sealing portion (542). The fifth sealing portion (541) extends along the left-right direction. One end of the sixth sealing portion (542) is connected to the end of the fifth sealing portion (541) near the second sealing structure (52). The other end of the sixth sealing portion (542) extends away from the fifth sealing portion (541) and near the first sealing structure (51).
9. The top cover drainage structure according to claim 6, characterized in that, The first sealing structure (51) is glass glue and is used to fill the gap at the joint between the front crossbeam (1) of the roof and the windshield (3); And / or, the second sealing structure (52) is a sealing strip and is used to seal the gap between the decorative cover (2) and the front crossbeam (1) of the top cover; And / or, the third sealing structure (53) is glass glue and is used to fill the gap at the joint between the front crossbeam (1) of the top cover and the skylight glass (4); And / or, the fourth sealing structure (54) is glass glue and is used to fill the gap at the joint between the front crossbeam (1) of the roof and the windshield (3).
10. A vehicle, characterized in that, Includes the top cover drainage structure as described in any one of claims 1-9.