Double-reinforced panoramic sunroof water sealing system

Abstract

The invention provides a double-reinforced panoramic sunroof water sealing system. The double-reinforced panoramic sunroof water sealing system comprises a first sealing system and a second sealing system, wherein the first sealing system comprises a first closed-loop sealing strip which is fixed along a turned-over edge of a roof opening. And when the skylight is in a closed state, the movable glass panel of the skylight is sealed by horizontally compressing the first closed-loop sealing strip. The second sealing system comprises a second closed-loop sealing strip, and the second closed-loop sealing strip is fixed to the frame of the skylight assembly, located below the roof panel and surrounds the periphery of the first closed-loop sealing strip. The second sealing system can seal the gap between the frame and the car roof and can guide water into a drainage groove below the second sealing system. According to the invention, two completely closed-loop sealing strips are adopted, the sections are unequal (the front part is provided with a lower water guide strip), and the joint of the front frame and the guide rail is provided with a special water guide block design. The water sealing performance of a traditional panoramic sunroof can be greatly improved, an acoustic sealing system can be improved, and the quiet environment of a vehicle body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile sunroofs, and in particular to a double-reinforced panoramic sunroof water sealing system. Background Art

[0002] Currently, most outward-sliding panoramic sunroofs only have one body sealing strip, and the water-tightness design margin is low. If the sealing strip fails to function, such as if the local bonding is not strong, water will enter the car.

[0003] In view of the above problems, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a double-reinforced panoramic sunroof water sealing system to improve the design margin of the sunroof sealing and improve the water sealing performance of the panoramic sunroof.

[0005] The technical solution adopted by the present invention is:

[0006] A double-reinforced panoramic sunroof water sealing system is provided, comprising a first sealing system, wherein the first sealing system comprises a first closed-loop sealing strip fixed along the flange of the roof opening; when the sunroof is in a closed state, a movable glass panel of the sunroof is sealed by horizontally compressing the first closed-loop sealing strip;

[0007] It also includes a second sealing system, which includes a second closed-loop sealing strip. The second closed-loop sealing strip is fixed to the frame of the sunroof assembly, located below the roof panel and surrounded by the outer periphery of the first closed-loop sealing strip. The second sealing system can seal the gap between the frame and the roof and can direct water into the drainage groove below it.

[0008] Furthermore, the frame includes a front frame, a rear frame and guide rails on both sides, the second closed-loop sealing strip is fixed on the front frame, the rear frame and the guide rails, and the lower part of the second closed-loop sealing strip installed only on the front frame has a downwardly inclined lower water guide strip, which is located on the rear side of the second closed-loop sealing strip and is used to guide water into the drainage groove below the front frame.

[0009] Furthermore, water guide blocks are respectively provided at the junctions of the two ends of the front frame and the guide rails on both sides, and a water guide passage is formed on the water guide block. The water guide passage is connected to the inner horizontal guide surface of the guide rail, and the water on the guide rail is guided into the drainage groove below through the water guide block.

[0010] Furthermore, the water guide passage includes a straight-through area, a drain port and a water return area, the inlet of the straight-through area is connected to the inner horizontal guide surface of the guide rail, and the outlet of the straight-through area is connected to the drain port and the water return area; the inlet of the straight-through area is higher than the inner horizontal guide surface of the guide rail;

[0011] The water flow from the inner horizontal guide surface of the guide rail is blocked and redirected at the entrance of the straight-through area and introduced into the drainage ditch below; the water that is not blocked enters the straight-through area, passes through the straight-through area and is introduced into the drainage ditch below through the drainage port; the water that exceeds the instantaneous drainage volume of the drainage port flows into the return water area, then flows back to the drainage port from the return water area, and is then introduced into the drainage ditch below.

[0012] Furthermore, the bottom heights of the drain outlet and the water return zone are lower than the bottom height of the straight-through zone; the water return zone is surrounded by side guards, cross guards and water guide plates, and the drain outlet is formed between the water guide plate and the outlet of the straight-through zone.

[0013] Furthermore, a clamping structure is provided on the outer side of the straight-through area of ​​the water guide block, and the water guide block is clamped on the front end of the vertical rail of the guide rail through the clamping structure. A sealant groove is provided on the water guide block, and the outer side of the water guide block and the inner side of the vertical rail are sealed by injecting sealant into the sealant groove.

[0014] Furthermore, the second closed-loop sealing strip includes a foam rubber part and a dense rubber part, the dense rubber part is fixed on the frame of the sunroof assembly, and the foam rubber part is connected to the dense rubber part.

[0015] The present invention adopts a completely closed-loop two-way sealing strip with unequal cross-sections (with a lower water guide strip at the front), and a special water guide block design at the junction of the front frame and the guide rail. It can greatly improve the water sealing performance of traditional panoramic sunroofs, and can also improve the acoustic sealing system and improve the quiet environment of the car body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic cross-sectional view of a front frame portion of a panoramic sunroof water sealing system according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic cross-sectional view of a left side guide rail portion of a panoramic sunroof water sealing system according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic cross-sectional view of a rear frame portion of a panoramic sunroof water sealing system according to an embodiment of the present invention is shown;

[0020] Figure 4 A schematic structural diagram of a second sealing system according to an embodiment of the present invention is shown;

[0021] Figure 5 A schematic diagram showing the three-dimensional structure of a water guide block according to an embodiment of the present invention is shown;

[0022] Figure 6 A schematic side view of a water guide block according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram showing the installation and working principle of the water guide block according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0024] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0027] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention is mainly composed of a second closed-loop sealing strip 2 of unequal cross-section and a water guide block 10. Specifically, the panoramic sunroof water sealing system of the present invention includes a first sealing system and a second sealing system. The first sealing system includes a first closed-loop sealing strip 1 (top cover opening sealing strip), which is fixed to the opening flange of the roof by bonding and clamping. When the sunroof is in a closed state, the movable glass panel 4 of the sunroof horizontally compresses the first closed-loop sealing strip 1 through the glass PU edging 3 to achieve water sealing and acoustic sealing. The second sealing system includes a second closed-loop sealing strip 2.

[0029] For vehicles without a second sealing system, when the first closed-loop sealing strip 1 (top cover opening sealing strip) is partially debonded, water will enter the dry area of ​​the vehicle. The present invention solves the user's pain points by adding a second sealing strip (the second closed-loop sealing strip 2) and improves the design margin of the sealing of the sunroof product. Even if one body seal (the first closed-loop sealing strip) is partially debonded, the second sealing strip (the second closed-loop sealing strip) can prevent water from flowing into the dry area of ​​the ceiling in the vehicle. The second closed-loop sealing strip in the front frame area has a lower branch structure (lower water guide strip 23) that can guide water into the wet area. The two sealing strips in the guide rail areas on both sides do not have a lower branch structure, but are provided with a water guide block 10 to prevent water from flowing into dry areas such as the front frame socket.

[0030] like Figures 1 to 3 As shown, the closed frame of the sunroof assembly is composed of a front frame 6, a rear frame 9 and guide rails 7 on both sides. The second closed-loop sealing strip 2 is fixed to the frame of the sunroof assembly, that is, the second closed-loop sealing strip is fixed to the front frame 6, the rear frame 9 and the guide rails 7. The second closed-loop sealing strip 2 is located below the roof panel 5 and surrounds the outer periphery of the first closed-loop sealing strip 1. The second sealing system can seal the gap between the frame and the roof, and can guide water into the drainage groove below it. A drainage groove is formed at the lower part of the frame.

[0031] refer to Figure 1-Figure 4 The second closed-loop sealing strip 2 has an unequal cross section, that is, only the lower part of the second closed-loop sealing strip part A installed on the front frame 6 has a downwardly inclined lower water guide strip 23, and the second closed-loop sealing strip parts on the two side rails and the rear frame area have no lower water guide strip structure. The lower water guide strip 23 is located at the rear side of the second closed-loop sealing strip 2 and is used to guide water into the drainage groove below the front frame 6. A water guide block 10 is used to guide water at the overlap B between the front frame and the guide rail to prevent water drops on the upper edge of the guide rail from flowing into the dry areas of the front frame such as the socket.

[0032] The second closed-loop sealing strip 2 includes a foam rubber part 21 (the lower water guide strip 23 of the second closed-loop sealing strip part A corresponding to the front frame is also made of foam rubber) and a dense rubber part 22. The dense rubber part 22 is fixed to the frame of the sunroof assembly, and the foam rubber part 21 is connected to the dense rubber part 22. The top of the foam rubber part 21 is pressed on the top cover reinforcement frame 8, and the top cover reinforcement frame 8 is attached to the bottom of the roof panel 5. The foam rubber part 21 seals the gap between the frame and the roof.

[0033] like Figure 5-Figure 7 As shown, water guide blocks 10 are respectively provided at the joints of the two ends of the front frame 6 and the guide rails 7 on both sides. A water guide passage is formed on the water guide block 10. The water guide passage is connected to the inner horizontal guide surface of the guide rail 7. The water on the guide rail 7 is guided into the drainage groove below through the water guide block 10. The water guide passage includes a straight-through area 106, a drainage port 107 and a return water area 108. The inlet of the straight-through area 106 is connected to the inner horizontal guide surface of the guide rail, and the outlet of the straight-through area 106 is connected to the drainage port 107 and the return water area 108. The inlet of the straight-through area 106 is higher than the inner horizontal guide surface of the guide rail. Figure 7 The water flow from the inner horizontal guide surface of the guide 7 is blocked and redirected at the entrance of the straight-through area 106 and introduced into the drainage ditch below; the unblocked water enters the straight-through area 106, passes through the straight-through area 106 and is introduced into the drainage ditch below through the drain outlet 107; the water exceeding the instantaneous discharge volume of the drain outlet 107 flows into the return water area 108, and then flows back to the drain outlet 107 from the return water area 108, and is then introduced into the drainage ditch below.

[0034] Preferably, the bottom heights of the drain port 107 and the water return area 108 are lower than the bottom height of the straight-through area 106. The water return area 108 is surrounded by the side guard 103, the cross guard 101 and the water guide plate 102, and the drain port 107 is formed between the water guide plate 102 and the outlet of the straight-through area 106. The front and rear ends of the water guide plate 102 have arc bends, and the inner area of ​​the water guide plate 102 and the inner area of ​​the drain port 107 are downwardly curved surfaces.

[0035] A clamping structure 104 is provided on the outside of the straight-through area of ​​the water guide block, and the water guide block 10 is clamped on the front end of the vertical rail of the guide rail 7 through the clamping structure 104. A sealing glue groove 105 is provided on the water guide block 10, and a seal is formed between the outer side of the water guide block 10 and the inner side of the vertical rail by injecting sealant 108 into the sealing glue groove 105.

[0036] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A double reinforced panoramic sunroof water sealing system, comprising a first sealing system, wherein the first sealing system comprises a first closed-loop sealing strip fixed along the flange of the roof opening; when the sunroof is in a closed state, the movable glass panel of the sunroof is sealed by horizontally compressing the first closed-loop sealing strip; It is characterized in that It also includes a second sealing system, which includes a second closed-loop sealing strip. The second closed-loop sealing strip is fixed to the frame of the sunroof assembly, located below the roof panel and surrounded by the outer periphery of the first closed-loop sealing strip. The second sealing system can seal the gap between the frame and the roof and can direct water into the drainage groove below it.

2. A double reinforced panoramic sunroof water sealing system as claimed in claim 1, characterized in that: The frame includes a front frame, a rear frame and guide rails on both sides. The second closed-loop sealing strip is fixed on the front frame, the rear frame and the guide rails. The lower part of the second closed-loop sealing strip installed only on the front frame has a downwardly inclined lower water guide strip. The lower water guide strip is located on the rear side of the second closed-loop sealing strip and is used to guide water into the drainage groove below the front frame.

3. A double reinforced panoramic sunroof water sealing system as claimed in claim 2, characterized in that: Water guide blocks are respectively provided at the junctions of the two ends of the front frame and the guide rails on both sides. A water guide passage is formed on the water guide block, which is connected to the inner horizontal guide surface of the guide rail. The water on the guide rail is guided into the drainage groove below through the water guide block.

4. A double reinforced panoramic sunroof water sealing system as claimed in claim 3, characterized in that: The water guide passage includes a straight-through area, a drain port and a water return area, the inlet of the straight-through area is connected to the inner horizontal guide surface of the guide rail, and the outlet of the straight-through area is connected to the drain port and the water return area; the inlet of the straight-through area is higher than the inner horizontal guide surface of the guide rail; The water flow from the inner horizontal guide surface of the guide rail is blocked and redirected at the entrance of the straight-through area and introduced into the drainage ditch below; the water that is not blocked enters the straight-through area, passes through the straight-through area and is introduced into the drainage ditch below through the drainage port; the water that exceeds the instantaneous drainage volume of the drainage port flows into the return water area, then flows back to the drainage port from the return water area, and is then introduced into the drainage ditch below.

5. A double reinforced panoramic sunroof water sealing system as claimed in claim 4, characterized in that: The bottom heights of the drain port and the water return zone are lower than the bottom height of the straight-through zone; the water return zone is surrounded by side guards, cross guards and water guide plates, and the drain port is formed between the water guide plate and the outlet of the straight-through zone.

6. A double reinforced panoramic sunroof water sealing system as claimed in claim 5, characterized in that: A clamping structure is provided on the outside of the straight-through area of ​​the water guide block, and the water guide block is clamped on the front end of the vertical rail of the guide rail through the clamping structure. A sealing glue groove is provided on the water guide block, and the outer side of the water guide block and the inner side of the vertical rail are sealed by injecting sealant into the sealing glue groove.

7. A double reinforced panoramic sunroof water sealing system as claimed in claim 6, characterized in that: The second closed-loop sealing strip includes a foam rubber part and a dense rubber part, the dense rubber part is fixed on the frame of the sunroof assembly, and the foam rubber part is connected to the dense rubber part.

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