Automobile sunroof water management system

Abstract

This invention proposes a water management system for an automotive sunroof, including a drainage mechanism and a waterproofing mechanism. The drainage mechanism is distributed around the front and rear glass assemblies, and each drainage mechanism is connected to a drain pipe at both ends. Multiple waterproofing mechanisms are respectively disposed between the drainage mechanism and the outer panel of the roof, the front glass assembly, or the rear glass assembly. The waterproofing mechanism includes double-layer waterproofing. By setting the drainage mechanism around the sunroof and the double-layer waterproofing mechanism outside the drainage mechanism, after the first layer of waterproofing fails, water enters the drainage mechanism through the first layer of waterproofing, flows along the direction of higher water in the middle and lower water on both sides, reaches the lowest point of the drainage mechanism, and is discharged from the drain pipe.

Description

Technical Field

[0001] This invention belongs to the field of automotive sunroof technology, and specifically relates to an automotive sunroof water management system. Background Technology

[0002] Currently, all panoramic sunroofs on the market suffer from the problem of water leakage due to the delamination of the sealing strips. To solve this problem, major OEMs and sunroof manufacturers have taken measures such as improving the adhesion performance of the sunroof sealing strips or controlling the bonding process to ensure a reliable bond. However, the bonding environments for sunroof sealing strips vary among different OEMs, and the temperature and cleanliness of the environment cannot be guaranteed, which means that the bonding of the sunroof sealing strips may still fail. Since the original sunroof sealing strips contain foam tubes, water can flow through the foam tubes into the dry areas of the interior after the tape bonding fails, causing the sunroof to leak into the vehicle's interior. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a sunroof water management system for automobiles, comprising a roof outer panel, a front crossbeam, and a glass assembly. The glass assembly includes a front glass assembly and a rear glass assembly. The system is characterized by further including a drainage mechanism and a waterproofing mechanism. The drainage mechanism is distributed around the front and rear glass assemblies, and each drainage mechanism is connected to a drain pipe at both ends. Multiple waterproofing mechanisms are respectively disposed between the drainage mechanism and the roof outer panel, the front glass assembly, or the rear glass assembly. The waterproofing mechanism includes double-layer waterproofing. The cross-section of each position within the drainage mechanism is streamlined, with a higher center and lower sides. The drainage mechanism is used to collect and drain water after the first layer of waterproofing fails. The second layer of waterproofing prevents water from entering the vehicle body. The first layer of waterproofing prevents external water from entering. The drainage mechanism collects and drains water that has passed through the first layer of waterproofing. The second layer of waterproofing prevents water flowing into the drainage mechanism from entering the vehicle body.

[0004] Furthermore, the drainage mechanism includes a water flow channel, a water guide channel, a guide rail, and a drainage channel, all of which are internally connected. The two ends of the water flow channel are respectively connected to the two guide rails, and the front and rear ends of the two guide rails are respectively connected to the drainage channel and the water guide channel. The water flow channel is located at the overlap between the rear glass assembly and the front glass assembly. The water guide channel is located at the end of the rear glass assembly away from the front glass assembly, and drainage pipes are connected to both sides of the water guide channel. The guide rails are located on both sides of the front and rear glass assemblies. The drainage channel is located on the front crossbeam below the front end of the front glass assembly, and drainage pipes are connected to both sides of the drainage channel.

[0005] Furthermore, the first waterproofing mechanism includes a water-blocking strip and a sealing strip; the first waterproofing mechanism is located at the position between the outer panel of the top cover and the front end of the front glass assembly, the water-blocking strip is located between the front crossbeam and the outer panel of the top cover, the front crossbeam is located at the front end of the front glass assembly, one end of the water-blocking strip is engaged with the front crossbeam, and the other end of the water-blocking strip contacts the outer panel of the top cover, the sealing strip is located between the outer panel of the top cover and the front glass assembly, one end of the sealing strip is fixed to the outer panel of the top cover, and the other end of the sealing strip contacts and seals the front glass assembly.

[0006] Furthermore, a second waterproofing mechanism is disposed at the junction of the front and rear glass assemblies. The second waterproofing mechanism includes a second water-retaining strip and a second sealing strip. The second water-retaining strip is located between the front end of the rear glass assembly extension and the front glass assembly. One end of the second water-retaining strip is engaged with the front end of the front end of the rear glass assembly extension, and the other end of the second water-retaining strip is engaged with the front glass assembly. The second sealing strip is located between the rear end of the rear glass assembly extension and the front glass assembly. One end of the second sealing strip is engaged with the rear end of the front end of the rear glass assembly extension, and the other end of the second sealing strip contacts and seals the front glass assembly.

[0007] Furthermore, a third waterproofing mechanism is located at the position between the outer panel of the top cover and the rear end of the rear glass assembly; the third waterproofing mechanism includes a sealing strip three and a water-blocking strip three, the water-blocking strip three is the rear side extension of the water guide groove, the sealing strip three is located between the rear end of the rear glass assembly and the outer panel of the top cover, one end of the sealing strip three is connected to the outer panel of the top cover, and the other end of the sealing strip three contacts and seals with the rear glass assembly, and the rear end of the rear glass assembly is integrally formed into a water guide groove.

[0008] Furthermore, there are two fourth waterproofing mechanisms, which are respectively disposed between the two sides of the glass assembly and the outer panel of the top cover. Each fourth waterproofing mechanism includes two water-blocking strips and a sealing strip. The two water-blocking strips are respectively located between the guide rail and the outer panel of the top cover and between the guide rail and the glass assembly. One end of one water-blocking strip is engaged with one side of the guide rail, and the other end of one water-blocking strip is connected to the outer panel of the top cover. One end of the other water-blocking strip is engaged with the other side of the guide rail, and the other end of the other water-blocking strip is slidably sealed to the glass assembly. The sealing strip is located between the side of the glass assembly and the outer panel of the top cover. One end of the sealing strip is engaged with the outer panel of the top cover, and the other end of the sealing strip is in contact with and sealed to the glass assembly.

[0009] Furthermore, the water guide channel is integrally injection molded with the rear glass assembly, and the cross-section of the water baffle strip is an irregular stepped shape.

[0010] Furthermore, the sealing strip is a bubble-free sealing strip.

[0011] Furthermore, the cross-sectional shape of the water-blocking strip is "V".

[0012] Furthermore, the drain pipe is located at the four corners of the glass assembly, and the drain pipe is located at the lowest point in the flow direction of the glass assembly.

[0013] The present invention discloses a water management system for a car sunroof. By setting up a connected drainage mechanism around the sunroof and setting up a double-layer waterproof mechanism outside the drainage mechanism, water can enter the drainage mechanism through the first layer of waterproof mechanism after the first layer of waterproof mechanism fails. Water flows along the direction of the drainage mechanism, which is high in the middle and low on both sides, to the lowest point of the drainage mechanism and is discharged from the drain pipe.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the skylight drainage path is shown in an embodiment of the present invention.

[0017] Figure 2 A top view of the skylight and the outer panel of the roof is shown in an embodiment of the present invention.

[0018] Figure 3 A schematic diagram of the connection of the drainage mechanism in an embodiment of the present invention is shown.

[0019] Figure 4 The present invention is shown. Figure 2 Sectional view of AA.

[0020] Figure 5 The present invention is shown. Figure 4 A magnified view of a portion of point a.

[0021] Figure 6 The present invention is shown. Figure 4 A magnified view of a section at point b.

[0022] Figure 7The present invention is shown. Figure 4 A magnified view of a section at point c.

[0023] Figure 8 The present invention is shown. Figure 2 A cross-sectional view of BB.

[0024] Figure 9 The present invention is shown. Figure 8 A magnified view of a portion at point d.

[0025] In the diagram: 1. Top cover outer panel; 2. Front crossbeam; 3. Glass assembly; 31. Front glass assembly; 32. Rear glass assembly; 4. Drainage mechanism; 41. Water channel; 4.2. Water guide channel; 43. Guide rail; 44. Drainage channel; 5. Waterproofing mechanism; 51. First waterproofing mechanism; 52. Second waterproofing mechanism; 53. Third waterproofing mechanism; 54. Fourth waterproofing mechanism; 511. Water barrier strip one; 512. Water barrier strip two; 513. Water barrier strip three; 514. Water barrier strip four; 521. Sealing strip one; 522. Sealing strip two; 523. Sealing strip three; 524. Sealing strip four; 6. Drainage pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] This application provides a water management system for an automotive sunroof, including a roof outer panel 1, a front crossbeam 2, and a glass assembly 3. The glass assembly 3 includes a front glass assembly 31 and a rear glass assembly 32. The system is characterized by further including a drainage mechanism 4 and a waterproofing mechanism 5. The drainage mechanism 4 is distributed around the front glass assembly 31 and the rear glass assembly 32, and each drainage mechanism 4 has a drain pipe 6 at both its front and rear ends. Multiple waterproofing mechanisms 5 are respectively disposed between the drainage mechanism 4 and the roof outer panel 1, the front glass assembly 31, or the rear glass assembly 32. The waterproofing mechanism 5 includes double-layer waterproofing. The drainage mechanism 4 is used to collect and drain water after the first layer of waterproofing of the waterproofing mechanism 5 fails, and the second layer of waterproofing of the waterproofing mechanism 5 is used to prevent water from the drainage mechanism 4 from entering the vehicle body. The drain pipes 6 are located at the four corners of the glass assembly 3, and the drain pipes 6 are located at the lowest point in the flow direction of the glass assembly 3.

[0028] refer to Figure 1 and Figure 2 , Figure 1A schematic diagram of the skylight drainage direction in an embodiment of the present invention is shown, wherein the drainage pipe 6 is located at the low point of the water flow direction; Figure 2 A top view of the skylight and the outer roof panel is shown.

[0029] During implementation, when the first layer of waterproofing in the waterproofing mechanism 5 fails, water enters the interior of the drainage mechanism 4 through the first layer of waterproofing. At the same time, due to the second layer of waterproofing in the waterproofing mechanism 5, the drainage mechanism forms an enclosed flow channel, preventing water from flowing into the vehicle body. Thus, the water flows out from the drain pipe 6 along the direction of the drainage mechanism 4. The drainage mechanism 4 is designed with a high center and low sides, so the water flows from high to low along the direction and is finally discharged to the outside of the vehicle body from the drain pipe 6 located at the lowest point.

[0030] By setting up a connected drainage mechanism 4 around the skylight and a double-layer waterproof mechanism 5 outside the drainage mechanism 4, water can enter the drainage mechanism 4 through the first layer of waterproofing after the first layer of waterproofing of the waterproof mechanism 5 fails. Then, water flows and converges in the drainage mechanism 4 to the drain pipe 6 and is discharged from the drain pipe 6.

[0031] In one embodiment of the present invention, the drainage mechanism 4 includes a water flow channel 41, a water guide channel 42, a guide rail 43, and a drainage channel 44, which are internally connected. The water flow channel 41 is located at the junction of the rear glass assembly 32 and the front glass assembly 31. The water guide channel 42 is located at one end of the rear glass assembly 32 away from the front glass assembly 31, and drainage pipes 6 are connected to both sides of the water guide channel 42. The guide rail 43 is located on both sides of the front glass assembly 31 and the rear glass assembly 32. The drainage channel 44 is located on the front crossbeam 2 below the front end of the front glass assembly 31, and drainage pipes 6 are connected to both sides of the drainage channel 44.

[0032] In one embodiment of the present invention, the first waterproofing mechanism 51 includes a water-blocking strip 511 and a sealing strip 521; one of the waterproofing mechanisms 5 is disposed at the front end of the top cover outer panel 1 and the front glass assembly 31, the water-blocking strip 511 is located between the front crossbeam 2 and the top cover outer panel 1, one end of the water-blocking strip 511 is snapped onto the front crossbeam 2, and the other end of the water-blocking strip 511 contacts the top cover outer panel 1, the sealing strip 521 is located between the top cover outer panel 1 and the front glass assembly 31, one end of the sealing strip 521 is fixed to the top cover outer panel 1, and the other end of the sealing strip 521 contacts and seals the front glass assembly 31.

[0033] refer to Figure 3 , Figure 4 and Figure 5 , Figure 3The diagram shows the connection of the drainage mechanism in an embodiment of the present invention. The two ends of the water trough 41 are connected to the guide rail 43, and the two ends of the guide rail 43 are connected to the water guide trough 42 and the drainage trough 44, respectively. Figure 4 A vertical cross-sectional view of the sunroof (along the length of the vehicle body) is shown. Figure 5 A schematic diagram of the water-blocking structure between the front glass assembly 31 and the top cover outer panel 1 in an embodiment of the present invention is shown. The front crossbeam 2 at the lower end of the top cover outer panel 1 is integrally formed with a drainage groove 44.

[0034] During implementation, the sealing strip 521 first provides the first layer of waterproofing between the front glass assembly 31 and the outer panel 1 of the top cover. When the sealing strip 521 fails after long-term use, water enters the drainage mechanism 4 through the failed sealing strip 521. The water leaks down from the sealing strip 521 at the front end of the outer panel 1 and the front glass assembly 31 into the drainage groove 44, and then flows from high to low along the flow direction of the drainage groove 44 into the front drain pipe 6 for discharge. The two sides of the drainage groove 44 are connected to the front drain pipe 6.

[0035] In one embodiment of the present invention, the second waterproofing mechanism 5 is disposed at the junction of the front glass assembly 31 and the rear glass assembly 32. The second water-blocking strip 512 is located between the front end of the extension of the rear glass assembly 32 and the front glass assembly 31. One end of the second water-blocking strip 512 is engaged with the front end of the front extension of the rear glass assembly 32, and the other end of the second water-blocking strip 512 is engaged with the front glass assembly 31. The second sealing strip 522 is located between the rear end of the extension of the rear glass assembly 32 and the front glass assembly 31. One end of the second sealing strip 522 is engaged with the rear end of the front extension of the rear glass assembly 32, and the other end of the second sealing strip 522 contacts and seals the front glass assembly 31.

[0036] refer to Figure 3 and Figure 6 , Figure 6 A schematic diagram of the water-blocking structure at the overlap position of the front glass assembly 31 and the rear glass assembly 32 in an embodiment of the present invention is shown. The front end of the rear glass assembly 32 is integrally formed with a water channel 41.

[0037] During implementation, sealing strip 522 first provides a first layer of waterproofing at the overlap between the front glass assembly 31 and the rear glass assembly 32. When sealing strip 522 fails after prolonged use, water at the overlap between the front and rear glass assemblies 31 and 32 will flow into the drainage channel 41. The leaked water enters the drainage channel 41 through sealing strip 522 and then flows downhill along the direction of the drainage channel 41 to both ends, where the water is diverted. The water flows into the front and rear parts of the guide rail 43 respectively; then it flows from high to low along the guide rail 43 to both ends of the water channel 42 or the drainage channel 44, and then flows from both ends of the water channel 42 or the drainage channel 44 to the position of the drain pipe 6, and is discharged from the drain pipe 6. The height of the water baffle 2 512 is higher than the height of the water channel 41, and the water baffle 2 512 blocks the water channel 41 and the front glass assembly 31, so that even if the water level in the water channel 41 rises, it will not leak into the vehicle body.

[0038] In one embodiment of the present invention, the third waterproofing mechanism 5 is disposed at the rear end of the top cover outer plate 1 and the rear glass assembly 32; the sealing strip 523 is located between the rear end of the rear glass assembly 32 and the top cover outer plate 1, one end of the sealing strip 523 is connected to the top cover outer plate 1, and the other end of the sealing strip 523 contacts and seals with the rear glass assembly 32; the extension of the rear end of the rear glass assembly 32 forms a water guide groove 42, and the water baffle 513 is the rear side extension of the water guide groove 42.

[0039] In one embodiment of the present invention, the water guide groove 42 is integrally injection molded with the rear glass assembly 32, and the cross-section of the water guide groove 42 is an irregular stepped shape.

[0040] refer to Figure 3 and Figure 7 , Figure 7 A schematic diagram of the water-blocking structure between the rear glass assembly 32 and the top cover baffle in an embodiment of the present invention is shown. The rear end of the rear glass assembly 32 is integrally formed with a water guide groove 42.

[0041] During implementation, the sealing strip 3 523 first provides the first layer of waterproofing between the rear glass assembly 32 and the outer panel 1 of the roof. When the sealing strip 3 523 fails after long-term use, the water between the rear glass assembly 32 and the roof baffle will flow into the water guide channel 42 through the failed sealing strip 3 523, and then flow from high to low along the flow direction of the water guide channel 42 into the rear drain pipe 6 for discharge. The two sides of the water guide channel 42 are connected to the rear drain pipe 6. The height of the water baffle strip 3 513 is higher than that of the water guide channel 42, which surrounds the water in the water guide channel 42 and prevents the water in the water guide channel 42 from flowing into the vehicle body.

[0042] The cross-sectional shape of the water baffle strip 3 513 is an irregular stepped shape. Water enters the bottom step of the water guide channel 42 through the sealing strip 3 523. When the water volume in the water guide channel 42 increases, the water baffle strip 3 with multiple steps blocks the water from crossing the water guide channel 42 and entering the vehicle body.

[0043] In one embodiment of the present invention, there are two fourth waterproofing mechanisms 5, which are respectively disposed between the two sides of the glass assembly 3 and the outer plate of the top cover 1; two water-blocking strips 514 are respectively located between the guide rail 43 and the outer plate of the top cover 1 and between the guide rail 43 and the glass assembly 3, one end of one water-blocking strip 514 is engaged with one side of the guide rail 43, and the other end of one water-blocking strip 514 is connected to the outer plate of the top cover 1; one end of the other water-blocking strip 514 is engaged with the other side of the guide rail 43, and the other end of the other water-blocking strip 514 is slidably sealed to the glass assembly 3; a sealing strip 524 is located between the side of the glass assembly 3 and the outer plate of the top cover 1, one end of the sealing strip 524 is engaged with the outer plate of the top cover 1, and the other end of the sealing strip 524 contacts and seals the glass assembly 3.

[0044] refer to Figure 3 , Figure 8 and Figure 9 , Figure 8 A cross-sectional view of the sunroof in the transverse direction (along the width of the vehicle body) is shown. Figure 9 A schematic diagram of the water-blocking structure between the side of the glass assembly 3 and the outer plate 1 of the top cover is shown in an embodiment of the present invention. There is a guide rail 43 below the glass assembly 3 that can be used for water flow.

[0045] During implementation, sealing strip 4 524 first provides a first layer of waterproofing between the glass assembly 3 and the outer top panel 1. When sealing strip 4 524 fails after prolonged use, water between the glass assembly 3 and the outer top panel 1 flows through the failed sealing strip 4 524 into the guide rail 43. The guide rail 43 has a streamlined cross-section that is high in the middle and low on both sides. Water flows from high to low along the guide rail 43 into the front and rear drain pipes 6 for discharge. The guide rail 43 provides a moving track for the glass assembly 3 during sunroof opening. The front glass assembly 31 moves along... The guide rail 43 moves backward to the upper end of the rear glass assembly 32, and the front glass assembly 31 moves forward along the guide rail 43 to close the sunroof. During the sunroof closing process, the front end of the front glass assembly 31 contacts and seals with the sealing strip 521, and the rear end of the front glass assembly 31 contacts and seals with the sealing strip 522. The entire sunroof is in a sealed state. At this time, the guide rail 43 serves as a component of the drainage mechanism 4 and is used to provide a flow track for the drainage mechanism 4. Two water-blocking strips 514 are set at the upper end of the guide rail 43 to prevent water in the guide rail 43 from flowing into the vehicle body.

[0046] In one embodiment of the present invention, the sealing strip is a bubble-free tube sealing strip.

[0047] In one embodiment of the present invention, the cross-sectional shape of the water-blocking strip is "V".

[0048] During implementation, since the sealing strip is a bubble-free sealing strip, it can prevent water from flowing into the dry area inside the vehicle body through the bubble tube after the sealing strip fails. Instead, the water flows into the drainage mechanism 4 through the bubble-free sealing strip and is discharged.

[0049] The cross-sectional shape of the water-blocking strip is set to "V". After water leaks into the drainage mechanism 4, the lower end of the water-blocking plate is inclined to expand the internal space of the drainage mechanism 4, so that the drainage mechanism 4 can accommodate more water to flow out. The upper end of the water-blocking strip is inclined towards the inside of the drainage mechanism 4, so that the water inside the drainage mechanism 4 can be discharged from the drainage mechanism 4 more smoothly.

[0050] All descriptions of the location of technical features in this application are made with the skylight closed.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water management system for an automotive sunroof, comprising a roof cover outer panel (1), a front crossbeam (2), and a glass assembly (3), wherein the glass... The assembly (3) includes a front glass assembly (31) and a rear glass assembly (32), characterized in that, It also includes a drainage mechanism (4) and a waterproofing mechanism (5). The drainage mechanism (4) is distributed around the front glass assembly (31) and the rear glass assembly (32). The drainage mechanism (4) is connected to a drain pipe (6) at both the front and rear. Multiple waterproofing mechanisms (5) are respectively set between the drainage mechanism (4) and the roof outer panel (1), the front glass assembly (31) or the rear glass assembly (32). The waterproofing mechanism (5) includes double waterproofing. The cross-section of each position in the drainage mechanism (4) is a streamlined shape with a high middle and low sides. The drainage mechanism (4) is used to collect and drain water after the first waterproofing layer of the waterproofing mechanism (5) fails. The second waterproofing layer of the waterproofing mechanism (5) is used to prevent water in the drainage mechanism (4) from entering the vehicle body. The first waterproofing layer of the waterproofing mechanism (5) is used to prevent external water from entering. The drainage mechanism (4) is used to collect and drain water that has entered through the first waterproofing layer of the waterproofing mechanism (5). The second waterproofing layer of the waterproofing mechanism (5) is used to prevent water flowing into the drainage mechanism (4) from entering the vehicle body. The drainage mechanism (4) includes a water channel (41), a water guide channel (42), a guide rail (43), and a drainage channel (44). The drainage mechanism (4) is internally interconnected. The two ends of the water channel (41) are respectively connected to the two guide rails (43), and the front and rear ends of the two guide rails (43) are respectively connected to the drainage channel (44) and the water guide channel (42). The water channel (41) is located at the overlap position between the rear glass assembly (32) and the front glass assembly (31). The water guide channel (42) is located at the end of the rear glass assembly (32) away from the front glass assembly (31), and drainage pipes (6) are connected to both sides of the water guide channel (42). The guide rail (43) is located on the front glass assembly (31). And the two sides of the rear glass assembly (32); the drainage groove (44) is located on the front crossbeam (2) below the front end of the front glass assembly (31), and the two sides of the drainage groove (44) are connected to the drainage pipe (6); The first waterproofing mechanism (51) includes a water-blocking strip (511) and a sealing strip (521). The first waterproofing mechanism (51) is located at the front end of the top cover outer plate (1) and the front glass assembly (31). The water-blocking strip (511) is located between the front crossbeam (2) and the top cover outer plate (1). The front crossbeam (2) is located at the front end of the front glass assembly (31). One end of the water-blocking strip (511) is engaged with the front crossbeam (2). The other end of the water-blocking strip (511) is in contact with the top cover outer plate (1). The sealing strip (521) is located between the top cover outer plate (1) and the front glass assembly (31). One end of the sealing strip (521) is fixed to the top cover outer plate (1). The other end of the sealing strip (521) is in contact with and sealed to the front glass assembly (31).

2. The automotive sunroof water management system according to claim 1, characterized in that, The second waterproofing mechanism (52) is located at the overlap position of the front glass assembly (31) and the rear glass assembly (32). The second waterproofing mechanism (52) includes a second water-blocking strip (512) and a second sealing strip (522). The second water-blocking strip (512) is located between the front end of the extension of the rear glass assembly (32) and the front glass assembly (31). One end of the second water-blocking strip (512) is engaged with the front end of the front extension of the rear glass assembly (32), and the other end of the second water-blocking strip (512) is engaged with the front glass assembly (31). The second sealing strip (522) is located between the rear end of the extension of the rear glass assembly (32) and the front glass assembly (31). One end of the second sealing strip (522) is engaged with the rear end of the front extension of the rear glass assembly (32), and the other end of the second sealing strip (522) is in contact with and sealed to the front glass assembly (31).

3. The automotive sunroof water management system according to claim 2, characterized in that, The third waterproofing mechanism (53) is located at the rear end of the top cover outer plate (1) and the rear glass assembly (32); the third waterproofing mechanism (53) includes a sealing strip three (523) and a water-blocking strip three (513). The water-blocking strip three (513) is the rear side extension of the water guide groove (42). The sealing strip three (523) is located between the rear end of the rear glass assembly (32) and the top cover outer plate (1). One end of the sealing strip three (523) is connected to the top cover outer plate (1), and the other end of the sealing strip three (523) contacts and seals the rear glass assembly (32). The rear end of the rear glass assembly (32) is integrally formed into the water guide groove (42).

4. The automotive sunroof water management system according to claim 3, characterized in that, There are two fourth waterproofing mechanisms (54), which are respectively disposed between the two sides of the glass assembly (3) and the outer plate of the top cover (1); each fourth waterproofing mechanism (54) includes two water-blocking strips (514) and a sealing strip (524). The two water-blocking strips (514) are respectively located between the guide rail (43) and the outer plate of the top cover (1) and between the guide rail (43) and the glass assembly (3). One end of one of the water-blocking strips (514) is engaged with one side of the guide rail (43), and the other end of the sealing strip (524) is engaged with the other end of the sealing strip (524). The other end of the water strip four (514) is connected to the outer plate of the top cover (1); one end of the other water-blocking strip four (514) is engaged with the other side of the guide rail (43), and the other end of the other water-blocking strip four (514) is slidably sealed to the glass assembly (3); the sealing strip four (524) is located between the side of the glass assembly (3) and the outer plate of the top cover (1), one end of the sealing strip four (524) is engaged with the outer plate of the top cover (1), and the other end of the sealing strip four (524) is in contact with the glass assembly (3) for sealing.

5. A car sunroof water management system according to claim 4, characterized in that, The water guide channel (42) and the rear glass assembly (32) are integrally injection molded, and the cross section of the water baffle strip (513) is an irregular stepped shape.

6. The automotive sunroof water management system according to claim 5, characterized in that, The sealing strip is a bubble-free sealing strip.

7. A car sunroof water management system according to claim 6, characterized in that, The cross-sectional shape of the water-blocking strip is "V".

8. A car sunroof water management system according to claim 7, characterized in that, The drain pipe (6) is located at the four corners of the glass assembly (3), and the drain pipe (6) is located at the lowest point of the flow direction of the glass assembly (3).

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