Automobile body rear drainage sealing structure and vehicle

Abstract

The application relates to the technical field of automobile body structure, and discloses a tail drainage sealing structure of an automobile body and a vehicle, which is applied to a top cover variable sliding sunroof assembly, the top cover variable sliding sunroof assembly comprising a sunroof fixed glass, a sunroof sliding glass and a sunroof top decorative plate, the two sides of the sunroof fixed glass and the sunroof sliding glass being overlapped with the sunroof top decorative plate; the drainage sealing structure comprises a side wall welding assembly, the sunroof fixed glass and the sunroof sliding glass are provided below the sunroof top decorative plate with a sunroof drainage groove and a sunroof reinforcing framework, the sunroof reinforcing framework extends to the tail of a side wall rear water channel, and a first sealing mechanism is arranged between the sunroof drainage groove and the sunroof reinforcing framework; a second sealing mechanism is arranged between the sunroof reinforcing framework and the side wall rear water channel. The application can play a good waterproof and sealing function on the vehicle mode in the form of the top cover variable sliding sunroof assembly, rainwater is prevented from flowing into the vehicle from the sunroof, and a more extreme experience is brought to consumers.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile body structures, and in particular to an automobile body rear end drainage sealing structure and a vehicle. Background Art

[0002] With the continuous improvement of living standards and the rapid development of new energy vehicles, automotive products are constantly evolving. Consumers' demands for automotive products are becoming increasingly diverse and are no longer limited to traditional vehicle configurations. Car sunroofs effectively circulate air inside the vehicle, increasing the intake of fresh air and providing drivers with a healthy and comfortable experience. They also provide a wider field of view and are often used for mobile photography and videography. Consequently, car sunroofs are becoming increasingly popular among consumers.

[0003] Traditional vehicles with sunroofs have roofs composed entirely of a sunroof assembly and a sheet metal roof. Sunroof models feature fixed sunroof glass, and the side panels' rear gutters overlap and match the rear crossbeam of the roof, sealing the structure with glue. Regarding the drainage structure of a sunroof, patent application publication number CN108116207A discloses a vehicle sunroof drainage structure comprising a pair of guide rails disposed at either end of the roof panel in the longitudinal direction of the vehicle body. A front drip gutter is connected to the front ends of the pair of guide rails and defines a drainage channel. Each guide rail includes an inner rail and an outer rail for retaining rainwater. The inner rails form a longitudinal protrusion in the middle region of the guide rails, forming a path for the sunroof on either side. A storage unit is provided at the rear end of the outer rail and is divided into multiple rainwater storage spaces to retain rainwater flowing therein.

[0004] In the above patent solution, since the storage unit is divided into an upper space and a lower space, rainwater flowing into the vehicle can be retained in the space of the storage unit, thereby preventing rainwater from flowing into the vehicle. However, such a sunroof drainage structure is not suitable for the newly developed new automobile roof variable sliding sunroof assembly structure. The automobile roof variable sliding sunroof assembly structure includes fixed glass and sliding glass, which completely covers the entire roof. A sunroof reinforcement frame is designed under the sunroof glass, extending from the side of the roof front crossbeam to the rear of the vehicle body side wall water flow channel, matching the side wall rear water flow channel, and without a roof rear crossbeam structure. Although such a car sunroof can bring a more extreme experience to consumers, the drainage and sealing problems at the rear of the vehicle body associated with this super-large variable roof sunroof cannot be solved by existing technology. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a drainage sealing structure at the rear of a car body and a vehicle, which can provide good waterproofing and sealing functions for vehicles with a variable sliding sunroof assembly on the top cover, prevent rainwater from flowing into the car through the sunroof, and bring consumers a more extreme experience.

[0006] The present invention solves the above technical problems through the following technical means:

[0007] In the first aspect, the present invention discloses a drainage sealing structure at the rear of a car body, which is applied to a variable sliding sunroof assembly on a top cover, wherein the variable sliding sunroof assembly on the top cover includes fixed sunroof glass, sliding sunroof glass and a top decorative panel of the sunroof, and both sides of the fixed sunroof glass and sliding sunroof glass overlap with the top decorative panel of the sunroof; the drainage sealing structure includes a side panel welding assembly, and a sunroof drainage groove and a sunroof reinforcement frame are sequentially arranged below the overlapping seams of the fixed sunroof glass and sliding sunroof glass and the top decorative panel of the sunroof, and the sunroof reinforcement frame extends to the rear of the side panel rear water flow groove, and a first sealing mechanism is arranged between the sunroof drainage groove and the sunroof reinforcement frame; the side panel welding assembly includes a side panel outer panel and a rear water flow groove of the side panel, and a second sealing mechanism is arranged between the sunroof reinforcement frame and the rear water flow groove of the side panel. This technical solution arranges a sunroof drainage groove inside the sunroof reinforcement frame. Water seeping into the gap area between the sunroof fixed glass and the sunroof sliding glass, as well as water seeping into the gap between the sunroof top decorative panel and the sunroof fixed glass and the sunroof sliding glass can flow from the front to the rear of the vehicle through the sunroof drainage groove to the rear flow groove area of ​​the rear side panel of the vehicle body, and then be discharged to the outside of the vehicle. It is sealed by the first sealing structure and the second sealing structure, effectively solving the drainage and sealing problems of the variable sliding sunroof assembly on the vehicle roof.

[0008] Furthermore, a first gap of 2.5-3.5 mm is provided between the skylight reinforcement frame and the skylight drainage channel. The first sealing mechanism is a first PU sealant, which is filled in the first gap between the skylight reinforcement frame and the skylight drainage channel. This technical solution uses the first PU sealant to achieve a waterproof seal between the skylight reinforcement frame and the skylight drainage channel. Furthermore, the PU sealant facilitates coating during production, thereby improving production efficiency.

[0009] Furthermore, the sunroof reinforcement frame includes a U-shaped groove bottom surface of the reinforcement frame, a side wall surface of the reinforcement frame in the vehicle direction, and a side wall surface of the reinforcement frame in the vehicle direction. The angle between the U-shaped groove bottom surface of the reinforcement frame and the side wall surface of the reinforcement frame in the vehicle direction is ≥135°, and the angle between the U-shaped groove bottom surface of the reinforcement frame and the side wall surface of the reinforcement frame in the vehicle direction is ≥45°. The end of the side wall surface in the vehicle direction away from the U-shaped groove bottom surface of the reinforcement frame is provided with a sunroof reinforcement frame vehicle outside flange, and the end of the side wall surface in the vehicle direction away from the U-shaped groove bottom surface of the reinforcement frame is provided with a sunroof reinforcement frame vehicle inside flange.

[0010] Furthermore, the side panel rear water channel is a U-shaped channel structure, comprising a bottom surface, an outboard sidewall, and an inboard sidewall. The angle between the bottom surface and the outboard sidewall is ≥135°, and the angle between the bottom surface and the inboard sidewall is ≥45°. By constraining the U-shaped channel angle design of the side panel rear water channel and the skylight reinforcement frame, this technical solution improves assembly and gluing processability, facilitates smooth and convenient operation, improves production cycle time, ensures gluing quality, and enhances sealing performance.

[0011] Furthermore, the side wall surface of the side rear water trough facing outward and the side wall surface facing inward of the side rear water trough are both smooth planes. This technical solution designs the side wall surface facing outward and the side wall surface facing inward of the side rear water trough to be smooth planes, which can prevent rainwater from accumulating on the side wall surface facing outward and the side wall surface facing inward of the side rear water trough.

[0012] Furthermore, a second gap of 5-7mm is provided between the side panel rear gutter and the skylight reinforcement frame. The second sealing mechanism is a second PU sealant, the thickness of which matches the width of the second gap, and the width of the second PU sealant is 10-14mm. This technical solution achieves a waterproof seal between the side panel rear gutter and the skylight reinforcement frame. Furthermore, the PU sealant facilitates application during production, improving production efficiency.

[0013] Furthermore, the sunroof reinforcement frame is provided with a sunroof sealing strip, which is provided with a U-shaped groove. The sunroof sealing strip is clamped to the inboard flange of the sunroof reinforcement frame through the U-shaped groove. This technical solution, through the sunroof sealing strip and the first PU sealant, can further achieve drainage sealing in the rear water trough area of ​​the entire rear side panel.

[0014] In a second aspect, the present invention further discloses a vehicle, comprising a vehicle body and the above-mentioned automobile body rear drainage sealing structure.

[0015] The automobile body rear drainage sealing structure and the vehicle of the present invention have the following advantages:

[0016] 1. The present invention arranges a sunroof drainage groove inside the sunroof reinforcement frame. Water seeping into the gap between the sunroof fixed glass and the sunroof sliding glass, as well as water seeping into the gap between the sunroof top decorative panel and the sunroof fixed glass and the sunroof sliding glass, can flow from the front to the rear of the vehicle through the sunroof drainage groove to the rear flow groove area of ​​the rear side panel of the vehicle body, and then be discharged to the outside of the vehicle. It is sealed by the first sealing structure and the second sealing structure, effectively solving the drainage and sealing problems of the variable sliding sunroof assembly on the vehicle roof.

[0017] 2. This invention not only allows water that seeps into the vehicle body from the roof to drain naturally, but also prevents water from flowing back into the vehicle from the rear gutter area, ensuring the required drainage and sealing performance of the rear gutter area. It also offers the advantages of a simple structure and easy operation. This provides a solid foundation for consumers to enjoy a richer automotive experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the sealed overlap structure of the side panel rear water trough and the roof rear crossbeam of the traditional solution;

[0019] Figure 2 This is a schematic diagram of the structure of a new top cover variable sliding sunroof assembly applicable to the present invention;

[0020] Figure 3 This is a general schematic diagram of a vehicle body rear drainage sealing structure according to the present invention;

[0021] Figure 4 It is a schematic cross-sectional view of the reinforced skeleton structure of the skylight of the present invention;

[0022] Figure 5 It is a cross-sectional schematic diagram of the side wall rear water trough structure of the present invention;

[0023] Figure 6 Schematic diagram of the sealing between the skylight reinforcement frame and the skylight U-shaped water flow channel of the present invention;

[0024] Figure 7 It is a schematic cross-sectional view of the sealing structure of the sunroof reinforcement frame and the rear side panel of the vehicle body welding assembly according to the present invention.

[0025] The numbers in the figure represent:

[0026] Top cover variable sliding sunroof assembly 1, sunroof fixed glass 11, sunroof sliding glass 12, sunroof reinforcement frame 13, reinforcement frame U-shaped groove bottom surface 131, reinforcement frame side wall surface 132 facing inward from the vehicle, reinforcement frame side wall surface 133 facing inward from the vehicle, sunroof reinforcement frame outside flange 134, sunroof reinforcement frame inside flange 135, sunroof drainage groove 14, sunroof top decorative panel 15, side panel welding assembly 2, side panel outer panel 21, side panel rear water flow groove 22, side panel rear water flow groove bottom surface 221, side panel rear water flow groove side wall surface 222 facing inward from the vehicle, side panel rear water flow groove side wall surface 223 facing inward from the vehicle, first PU sealant 31, second PU sealant 32, sunroof sealing strip 4. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0029] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-Figure 7As shown, this embodiment is a drainage sealing structure at the rear of a car body, which is applied to a variable sliding sunroof assembly 1 on the top cover. The variable sliding sunroof assembly 1 on the top cover includes a fixed sunroof glass 11, a sliding sunroof glass 12 and a sunroof top decorative panel 15. The two sides of the fixed sunroof glass 11 and the sliding sunroof glass 12 overlap with the sunroof top decorative panel 15; the drainage sealing structure includes a side panel welding assembly 2, and a U-shaped sunroof drainage groove 14 and a U-shaped sunroof reinforcement frame 13 are sequentially arranged below the overlapping seams of the fixed sunroof glass 11 and the sliding sunroof glass 12 and the sunroof top decorative panel 15. The side panel welding assembly 2 includes a side panel outer panel 21 and a side panel rear water flow groove 22. The sunroof reinforcement frame 13 extends to the rear of the side panel rear water flow groove 22. A first PU sealant 31 is arranged between the sunroof drainage groove 14 and the sunroof reinforcement frame 13, and a second PU sealant 32 is arranged between the sunroof reinforcement frame 13 and the side panel rear water flow groove 22.

[0032] The sunroof reinforcement frame 13 includes a U-shaped groove bottom surface 131 of the reinforcement frame, a side wall surface 132 in the direction of the outside of the vehicle of the reinforcement frame, and a side wall surface 133 in the direction of the inside of the vehicle of the reinforcement frame. The angle between the U-shaped groove bottom surface 131 of the reinforcement frame and the side wall surface 132 in the direction of the outside of the vehicle of the reinforcement frame is ≥135°, which is 135° in this embodiment. The angle between the U-shaped groove bottom surface 131 of the reinforcement frame and the side wall surface 133 in the direction of the inside of the vehicle of the reinforcement frame is ≥45°, which is 45° in this embodiment. The end of the side wall surface 132 in the direction of the outside of the vehicle away from the U-shaped groove bottom surface 131 of the reinforcement frame is provided with a sunroof reinforcement frame vehicle outside flange 134, and the end of the side wall surface 133 in the direction of the inside of the vehicle away from the U-shaped groove bottom surface 131 of the reinforcement frame is provided with a sunroof reinforcement frame vehicle inside flange 135. The side rear water flow trough 22 is a U-shaped trough structure, and the side rear water flow trough 22 includes a side rear water flow trough bottom surface 221, a side wall surface 222 facing outward from the vehicle, and a side wall surface 223 facing inward from the vehicle. The angle between the side rear water flow trough bottom surface 221 and the side wall surface 222 facing outward from the vehicle is ≥135°, which is 135° in this embodiment. The angle between the side rear water flow trough bottom surface 221 and the side wall surface 223 facing inward from the vehicle is ≥45°, which is 45° in this embodiment. In order to avoid rainwater accumulation on the side wall surface 222 facing outward from the vehicle and the side wall surface 223 facing inward from the vehicle, the side wall surface 222 facing outward from the vehicle and the side wall surface 223 facing inward from the vehicle are both smooth planes.

[0033] To provide a better seal and improve assembly efficiency, a first gap of 2.5-3.5mm is provided between the sunroof reinforcement frame 13 and the sunroof gutter 14. A first PU sealant 31 is filled in this first gap. A second gap of 5-7mm is provided between the side panel rear gutter 22 and the sunroof reinforcement frame 13. The thickness of the second PU sealant 32 matches the width of the second gap, and the width of the second PU sealant 32 is 10-14mm. To further achieve drainage sealing in the rear side panel rear gutter 22 area, a sunroof sealing strip 4 is provided on the sunroof reinforcement frame 13. The strip 4 has a U-shaped groove, which clips onto the inboard flange 135 of the sunroof reinforcement frame through the U-shaped groove.

[0034] This embodiment features a sunroof drainage channel 14 within the sunroof reinforcement frame 13. Water seeping into the gap between the fixed sunroof glass 11 and the sliding sunroof glass 12, as well as water seeping into the gap between the sunroof top decorative panel 15 and the fixed and sliding sunroof glass 11, 12, can flow through the sunroof drainage channel 14 from the front of the vehicle to the rear of the vehicle, towards the rear water channel 22 on the rear side panel. Furthermore, this embodiment utilizes a first PU sealant 31, a second PU sealant 32, and a sunroof sealing strip 4 for sealing, effectively addressing the drainage and sealing issues of the variable sliding sunroof assembly 1 on the vehicle roof.

[0035] Example 2

[0036] This embodiment is a vehicle, which includes a vehicle body and the automobile body rear drainage sealing structure in the above embodiment.

[0037] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A drainage sealing structure for the rear of an automobile body, applied to a variable sliding sunroof assembly on the top cover, characterized by: The top cover variable sliding sunroof assembly includes sunroof fixed glass, sunroof sliding glass and sunroof top decorative panel, and the two sides of the sunroof fixed glass and sunroof sliding glass are overlapped with the sunroof top decorative panel; the drainage sealing structure includes a side panel welding assembly, and a sunroof drainage groove and a sunroof reinforcement frame are sequentially arranged below the overlapping seams of the sunroof fixed glass and sunroof sliding glass and the sunroof top decorative panel, and the side panel welding assembly includes a side panel outer panel and a side panel rear water flow groove, and the sunroof reinforcement frame extends to the tail of the side panel rear water flow groove, a first sealing mechanism is arranged between the sunroof drainage groove and the sunroof reinforcement frame, and a second sealing mechanism is arranged between the sunroof reinforcement frame and the side panel rear water flow groove.

2. The automobile rear end drainage sealing structure according to claim 1, characterized in that: A first gap of 2.5-3.5 mm is set between the skylight reinforcement frame and the skylight drainage groove. The first sealing mechanism is a first PU sealant, and the first PU sealant is filled in the first gap between the skylight reinforcement frame and the skylight drainage groove.

3. The automobile rear end drainage sealing structure according to claim 1, characterized in that: The sunroof reinforcement frame includes a U-shaped groove bottom surface of the reinforcement frame, a side wall surface of the reinforcement frame in the direction of the outside of the vehicle, and a side wall surface of the reinforcement frame in the direction of the inside of the vehicle. The angle between the bottom surface of the U-shaped groove of the reinforcement frame and the side wall surface of the reinforcement frame in the direction of the outside of the vehicle is ≥135°, and the angle between the bottom surface of the U-shaped groove of the reinforcement frame and the side wall surface of the reinforcement frame in the direction of the inside of the vehicle is ≥45°. The end of the side wall surface in the direction of the outside of the vehicle away from the bottom surface of the U-shaped groove of the reinforcement frame is provided with a sunroof reinforcement frame in the direction of the outside of the vehicle flange, and the end of the side wall surface in the direction of the inside of the vehicle away from the bottom surface of the U-shaped groove of the reinforcement frame is provided with a sunroof reinforcement frame in the direction of the inside of the vehicle flange.

4. The automobile body rear drainage sealing structure according to claim 1, characterized in that: The side rear water flow trough is a U-shaped trough structure, and the side rear water flow trough includes the side rear water flow trough bottom surface, the side wall surface of the side rear water flow trough facing outward from the vehicle, and the side wall surface of the side rear water flow trough facing inward from the vehicle. The angle between the side rear water flow trough bottom surface and the side wall surface of the side rear water flow trough facing outward from the vehicle is ≥135°, and the angle between the side rear water flow trough bottom surface and the side wall surface of the side rear water flow trough facing inward from the vehicle is ≥45°.

5. The automobile body rear drainage sealing structure according to claim 4, characterized in that: The side wall surface of the side panel rear water trough facing outward from the vehicle and the side wall surface of the side panel rear water trough facing inward from the vehicle are both smooth planes.

6. The automobile rear end drainage sealing structure according to claim 2, characterized in that: A second gap of 5-7 mm is set between the side panel rear water channel and the sunroof reinforcement frame. The second sealing mechanism is a second PU sealant. The thickness of the second PU sealant matches the width of the second gap. The width of the second PU sealant is 10-14 mm.

7. The automobile rear end drainage sealing structure according to claim 1, characterized in that: The sunroof reinforcement frame is provided with a sunroof sealing strip, and the sunroof sealing strip is provided with a U-shaped groove. The sunroof sealing strip is clamped on the inboard direction flange of the sunroof reinforcement frame through the U-shaped groove.

8. A vehicle, characterized in that: The vehicle comprises a vehicle body and the automobile body rear drainage sealing structure according to any one of claims 1-7.

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