Sealing structure of low-wind-noise C-column plaque assembly

Abstract

A sealing structure of a low-wind-noise C column decoration plate assembly comprises the C column decoration plate assembly which is provided with a C column inner side structure end face and a C column outer side decoration end face. The C-column sealing assembly comprises a C-column profiling sealing strip, a straight sealing strip and an adhesive tape buckle, the C-column profiling sealing strip is attached to the end face of the C-column inner side structure, and the straight sealing strip is attached to the upper end of the C-column plaque assembly; a plurality of buckle grooves are formed in the end face of the C column inner side structure, and the multiple rubber strip buckles are arranged in the buckle grooves in a one-to-one correspondence mode. The rubber strip buckle comprises a buckle body and a rubber sleeve wrapping the buckle body. According to the C-column decoration plate assembly, the C-column sealing assembly composed of multiple sealing components (the C-column profiling sealing strip, the straight sealing strip and the rubber strip buckle) is adopted, and in the installation and use process of the C-column decoration plate assembly, the all-dimensional and multi-direction (transverse, vertical and longitudinal) sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a sealing structure of a low-wind-noise C-pillar trim assembly. Background Art

[0002] The C-pillar trim assembly is a crucial component of a car's interior. Located on the C-pillars on either side of the rear seats, it connects the roof and underbody, and sits between the rear doors and the rear window. Its functions are: first, decorative, concealing the C-pillar's metal structure and enhancing the overall aesthetics of the interior, adding a refined touch; second, protective, protecting the C-pillar from external factors like dust and moisture, while also providing a certain degree of collision protection, safeguarding passengers.

[0003] Common issues with the C-pillar trim assembly include: 1. Direct fasteners such as screws can loosen over time due to vehicle vibration and jolts, creating a gap between the trim and the body, leading to looseness or unusual noises. 2. Direct fasteners such as screws are cumbersome to use and can easily damage components due to excessive force. Third, as an example of prior art, see patent document CN110920364A, which discloses a C-pillar sealing structure for a rear door window frame of an automobile. The structure comprises a C-pillar decorative cover, a C-pillar sealing strip, a side corner window assembly, and a rear door sheet metal assembly. The C-pillar decorative cover is mounted on the rear door sheet metal assembly, and the C-pillar sealing strip is clipped onto the C-pillar decorative cover. The C-pillar sealing strip comprises a strip body, a clip block, an auxiliary fixing block, a sealing hood, and an exterior hood. The C-pillar decorative cover is provided with a clip slot, into which the clip block clips, and the auxiliary fixing block clips onto the C-pillar decorative cover. The C-pillar sealing strip is fixed to the C-pillar decorative cover via an integrally extruded clip structure. The entire C-pillar sealing strip and cover have a uniform cross-section from top to bottom. The sealing component is single, and the C-pillar decorative panel assembly is a large, uniquely shaped component. Therefore, the sealing structure in the example clearly cannot meet the sealing requirements of the entire C-pillar decorative panel assembly, and therefore cannot achieve a comprehensive sealing effect. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a sealing structure for a low-wind-noise C-pillar trim assembly.

[0005] The technical solution of the utility model to solve the technical problem is: a sealing structure of a low wind noise C-pillar trim assembly, comprising:

[0006] A C-pillar trim assembly having a C-pillar inner structural end surface and a C-pillar outer decorative end surface;

[0007] The C-pillar sealing assembly includes a C-pillar contoured sealing strip, a straight sealing strip, and a rubber strip buckle. The C-pillar contoured sealing strip is attached to the inner structural end surface of the C-pillar, and the straight sealing strip is attached to the upper end of the C-pillar trim assembly.

[0008] A plurality of buckle grooves are provided on the inner structural end surface of the C-pillar, and a plurality of the rubber strip buckles are provided in the buckle grooves in a one-to-one correspondence;

[0009] The rubber strip buckle comprises a buckle body and a rubber sleeve covering the buckle body;

[0010] The inner end surface of the buckle body has a first hook on one side and a first limiting groove on the other side, and the inner side of the buckle groove has a first hook groove and a first anti-slip rib; when the buckle body enters the buckle groove, the first hook is inserted into the first hook groove, and the first anti-slip rib is inserted into the first limiting groove, and the first hook abuts against the inner wall of the first hook groove, and the first limiting rib abuts against the inner wall of the first limiting groove, so that the rubber strip buckle and the buckle groove form a limiting and anti-slip fit.

[0011] Furthermore, the outer end surface of the rubber sleeve extends outward and forms a hook sealing portion, which has a hook sealing groove. The edge of the side door sheet metal is inserted into the hook sealing groove to form a sealed fit between the side door sheet metal and the C-pillar trim assembly.

[0012] In some preferred embodiments of the present invention, the end surface of the inner structure of the C-pillar is bent inward at one end away from the rubber strip buckle to form a accommodating groove, and the C-pillar contour sealing strip is at least partially arranged near the accommodating groove. One end of the side door sheet metal presses the C-pillar contour sealing strip against the end surface of the inner structure of the C-pillar and extends into the accommodating groove.

[0013] In some preferred embodiments of the present invention, a plurality of gap ribs are provided on the outer wall of the rubber sleeve, and the gap ribs are abutted against the inner wall of the first hook groove to form a gap space between the inner wall of the first groove and the outer wall of the rubber sleeve.

[0014] Preferably, the buckle body is recessed with a buckle cavity for accommodating the door glass, and the rubber sleeve is convexly provided with a plurality of sealing ribs in different directions on one side facing the buckle cavity.

[0015] Optionally, the surface of the sealing rib has a Teflon frosted coating.

[0016] In some preferred embodiments of the present invention, the lower edge of the straight sealing strip has an inward-bending rib, and the upper edge has an outward-extending rib, a rib groove is formed between the inward-bending rib and the outward-extending rib, and the upper edge of the C-pillar trim assembly is bent and enters the rib groove;

[0017] The inner buckle ribs abut against the inner structural end surface of the C-pillar to form a sealed fit;

[0018] A window frame assembly gap is formed between the upper edge of the C-pillar trim assembly and the rear door window frame component, and the outer rib is inserted into the window frame assembly gap to fill the window frame assembly gap, so that a sealed fit is formed between the upper edge of the C-pillar trim assembly and the rear door window frame component.

[0019] In some preferred embodiments of the present invention, the inner end surface of the straight sealing strip also extends inward to form a protrusion sealing portion, which can be abutted against the vehicle's C-pillar sheet metal to form a sealing fit, and the protrusion sealing portion is located on the back side of the rib groove.

[0020] In some preferred embodiments of the present invention, the C-pillar sealing assembly further comprises a corner window sealing strip, wherein the corner window sealing strip comprises a supporting section, a first sealing section, and a second sealing section;

[0021] The support section is arranged along the installation direction of the C-pillar trim assembly;

[0022] The first sealing section is perpendicular to the supporting section, and the first sealing section abuts against the corner window glass to form a sealing fit;

[0023] The second sealing section is formed by bending the inner end of the supporting section toward one side of the C-pillar trim assembly. The second sealing section is arc-shaped and fits on the side wall of the C-pillar trim assembly.

[0024] The beneficial effects of the present invention are:

[0025] 1. A C-pillar sealing assembly consisting of multiple sealing components (C-pillar contoured sealing strip, straight sealing strip and rubber strip buckle) is used to provide all-round, multi-directional (horizontal, vertical and longitudinal) sealing effects during the installation and use of the C-pillar trim assembly.

[0026] 2. The C-pillar contoured sealing strip adopts a contoured shape, and its overall shape is similar to that of the C-pillar trim assembly. Therefore, it has a larger size and can provide a large-area sealing effect. The upper end of the vehicle (near the roof) is more susceptible to external rainwater, so a straight sealing strip is configured at the upper end of the C-pillar trim assembly to provide an additional sealing structure, forming a double sealing function.

[0027] 3. A rubber strip clip is used, which is a small connector for fixing the rubber strip. It has the advantages of light weight, corrosion resistance, and good insulation. The rubber strip clip in the present disclosure is stated to have a rubber sleeve, so it has good elasticity and toughness, provides waterproof, dustproof, sound insulation and other functions, and helps to improve the sealing performance of the rubber strip.

[0028] 4. The buckle body in the rubber strip buckle needs to play the function of positioning and connection, so it needs to cooperate with the groove or hole. With the help of the setting of the rubber sleeve, the matching gap between the buckle body and the groove or hole can be eliminated, further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an assembly drawing of the C-pillar trim assembly in the present utility model.

[0030] Figure 2 It is a schematic diagram of the partial structural disassembly of the C-pillar trim assembly in the present invention.

[0031] Figure 3 It is a structural schematic diagram of the inner structural end face of the C-pillar.

[0032] Figure 4 yes Figure 3 Cross-sectional view from the center BB direction (C-pillar trim assembly assembled in the vehicle).

[0033] Figure 5 It is a structural diagram of the outer decorative end surface of the C-pillar.

[0034] Figure 6 yes Figure 5 Cross-sectional view from the center CC direction (C-pillar trim assembly assembled into the vehicle).

[0035] Figure 7 yes Figure 5 Cross-sectional view from the center DD direction (C-pillar trim assembly assembled into the vehicle).

[0036] In the figure: 1. C-pillar trim assembly; 11. C-pillar inner structural end surface; 111. Buckle groove; 1111. First hook groove; 1112. First anti-slip rib; 112. Accommodation groove; 12. C-pillar outer decorative end surface; 2. C-pillar sealing assembly; 21. C-pillar contoured sealing strip; 22. Straight sealing strip; 221. Inner buckle rib; 222. Outer extension rib; 223. Rib groove; 224. Bump sealing portion; 23. Rubber strip buckle; 231. Buckle body; 2311. First hook; 23 12. Limiting groove; 2313. Buckle cavity; 232. Rubber sleeve; 2321. Hook sealing part; 2321a. Hook sealing groove; 2322. Sealing rib; 2323. Teflon frosted coating; 2324. Gap rib; 2324a. Gap space; 24. Corner window sealing strip; 241. Support section; 242. First sealing section; 243. Second sealing section; 3. Side door sheet metal; 4. Door glass; 5. Rear door window frame component; 6. Vehicle C-pillar sheet metal; 7. Corner window glass. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely a specific description of the present invention, and their purpose is to allow those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limiting the present invention.

[0038] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] Example 1

[0041] Reference Figures 1 to 7 A sealing structure of a low wind noise C-pillar trim assembly 1, comprising:

[0042] A C-pillar trim assembly 1 having a C-pillar inner structural end surface 11 and a C-pillar outer decorative end surface 12;

[0043] The C-pillar sealing assembly 2 includes a C-pillar contoured sealing strip 21, a straight sealing strip 22, and a rubber strip buckle 23. The C-pillar contoured sealing strip 21 is attached to the inner structural end surface 11 of the C-pillar, and the straight sealing strip 22 is attached to the upper end of the C-pillar trim assembly 1.

[0044] The inner end surface 11 of the C-pillar is provided with a plurality of snap grooves 111 , and the rubber strip snaps 23 are provided in a plurality of corresponding snap grooves 111 ;

[0045] The rubber strip buckle 23 includes a buckle body 231 and a rubber sleeve 232 covering the buckle body 231;

[0046] One side of the inner end surface of the buckle body 231 has a first hook portion 2311, and the other side has a first limiting groove 2312, and the inner side of the buckle groove 111 has a first hook groove 1111 and a first anti-slip rib 1112; when the buckle body 231 enters the buckle groove 111, the first hook portion 2311 is inserted into the first hook groove 1111, and the first anti-slip rib 1112 is snapped into the first limiting groove 2312, and the first hook portion 2311 abuts against the inner wall of the first hook groove 1111, and the first limiting rib abuts against the inner wall of the first limiting groove 2312, so that the rubber strip buckle 23 and the buckle groove 111 form a limiting and anti-slip fit.

[0047] The above describes the basic structural solution of the present invention. It utilizes a C-pillar sealing assembly 2 comprised of multiple sealing components (a C-pillar contoured sealing strip 21, a straight sealing strip 22, and a rubber strip clip 23) to provide comprehensive sealing during installation and use of the C-pillar trim assembly 1. The C-pillar contoured sealing strip 21, with its contoured shape similar to that of the C-pillar trim assembly 1, is larger and provides a wide-area sealing effect. The upper end of the vehicle (near the roof) is more susceptible to external rainwater, so a straight sealing strip 22 is positioned at the upper end of the C-pillar trim assembly 1 to provide an additional sealing layer, achieving dual sealing functionality. Furthermore, the rubber strip clip 23 is a small connector for securing the rubber strip. It features advantages such as light weight, corrosion resistance, and excellent insulation. The rubber strip clip 23 disclosed herein includes a rubber sleeve 232, which provides excellent elasticity and toughness, providing waterproofing, dustproofing, and soundproofing, thereby enhancing the sealing performance of the rubber strip. On the other hand, the buckle body 231 in the rubber strip buckle 23 needs to play the role of positioning and connection, so it needs to cooperate with the groove or hole. With the help of the setting of the rubber sleeve 232, the matching gap between the buckle body 231 and the groove or hole can be eliminated, further improving the sealing performance.

[0048] It is worth mentioning that, referring to Figure 4 、 Figure 7 The outer end surface of the rubber sleeve 232 further extends outward and forms a curved hook sealing portion 2321. The curved hook sealing portion 2321 has a curved hook sealing groove 2321a. The edge of the side door sheet metal 3 is inserted into the curved hook sealing groove 2321a, thereby forming a sealed fit between the side door sheet metal 3 and the C-pillar trim assembly 1. Furthermore, the curved hook sealing portion 2321 has a closing structure with a larger inner portion and a smaller outer portion. Firstly, the curved hook sealing portion 2321 can be tightly pressed against the side door sheet metal 3 and sealed. Secondly, a gap is formed between the hook sealing portion 2321 and the side door sheet metal 3, providing sufficient space to prevent overly tight assembly and ensure smooth insertion and removal.

[0049] Reference Figure 7Regarding the C-pillar contoured sealing strip 21, a further preferred configuration is as follows: the end of the C-pillar inner structural end face 11 away from the rubber strip clip 23 is bent inward to form a receiving groove 112. The C-pillar contoured sealing strip 21 is at least partially disposed near the receiving groove 112. One end of the side door sheet metal 3 presses the C-pillar contoured sealing strip 21 against the C-pillar inner structural end face 11 and extends into the receiving groove 112. The receiving groove 112 cooperates with the aforementioned curved hook sealing portion 2321 to achieve installation and fixation of the two ends of the side door sheet metal 3. The configuration of the C-pillar contoured sealing strip 21 also forms a seal between the C-pillar inner structural end face 11 and one end of the side door sheet metal 3. The other end of the side door sheet metal 3 is sealed by the curved hook sealing portion 2321, thereby achieving a double-end sealing effect for the side door sheet metal 3.

[0050] Preferably, refer to Figure 4 、 Figure 7 The buckle body 231 is recessed with a buckle cavity 2313 for accommodating the door glass 4. The rubber sleeve 232 is provided with a plurality of sealing ribs 2322 projecting from the side of the buckle cavity 2313 facing the door glass 4. After the door glass 4 is inserted into the buckle cavity 2313, the sealing ribs 2322 abut against the door glass 4 to form a seal. Optionally, the surface of the sealing ribs 2322 has a frosted Teflon coating 2323 to provide corrosion resistance.

[0051] In this embodiment, refer to Figure 4 A plurality of gap ribs 2324 are provided on the outer wall of the rubber sleeve 232, and the gap ribs 2324 are abutted against the inner wall of the first hook groove 1111, so that a gap space 2324a is formed between the inner wall of the first groove and the outer wall of the rubber sleeve 232, so as to prevent the rubber sleeve 232 from being in close contact with the inner wall of the first groove over a large area, generating excessive friction, and causing the rubber strip buckle 23 to be disassembled and assembled.

[0052] Example 2

[0053] In this embodiment, the specific configuration of the straight sealing rib 2322 is as follows: Figure 6 The lower edge of the straight sealing strip 22 has an inward rib 221, and the upper edge has an outward rib 222. A rib groove 223 is formed between the inward rib 221 and the outward rib 222. The upper edge of the C-pillar trim assembly 1 is bent and enters the rib groove 223; the inward rib 221 abuts against the inner structural end face 11 of the C-pillar and forms a sealing fit; a window frame assembly gap is formed between the upper edge of the C-pillar trim assembly 1 and the rear door window frame component 5, and the outward rib 222 is stuck in the window frame assembly gap to fill the window frame assembly gap, so that a sealing fit is formed between the upper edge of the C-pillar trim assembly 1 and the rear door window frame component 5.

[0054] Further, refer to Figure 6 The inner end surface of the straight sealing strip 22 further extends inward to form a bump seal portion 224. This bump seal portion 224 can abut against the vehicle's C-pillar sheet metal 6 to form a seal. The bump seal portion 224 is located behind the rib groove 223. When a force is applied to the bump seal portion 224, it deforms to a certain extent. The presence of the rib groove 223 provides space for deformation, ensuring that the formation direction of the bump seal portion 224 is more stable and reliable.

[0055] Example 3

[0056] Reference Figure 7 Based on the structure of any of the aforementioned embodiments, in this embodiment, the C-pillar sealing assembly 2 further includes a corner window sealing strip 24. The corner window sealing strip 24 comprises a support section 241, a first sealing section 242, and a second sealing section 243. The support section 241 is arranged along the installation direction of the C-pillar trim assembly 1. The first sealing section 242 is perpendicular to the support section 241 and abuts against the corner window glass 7 to form a seal. The second sealing section 243 is formed by bending the inner end of the support section 241 toward the side of the C-pillar trim assembly 1. The second sealing section 243 is arc-shaped and adheres to the side wall of the C-pillar trim assembly 1. The provision of the corner window sealing strip 24 ensures that the C-pillar trim assembly 1 adheres to the corner window glass 7 during installation and use, forming a good seal.

[0057] It is worth noting that other technical solutions of the present invention belong to the existing technology and are therefore not described in detail.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A sealing structure for a low wind noise C-pillar trim assembly, comprising: A C-pillar trim assembly (1) having a C-pillar inner structural end surface (11) and a C-pillar outer decorative end surface (12); A C-pillar sealing assembly (2), comprising a C-pillar contoured sealing strip (21), a straight sealing strip (22) and a rubber strip buckle (23), wherein the C-pillar contoured sealing strip (21) is attached to the inner structural end surface (11) of the C-pillar, and the straight sealing strip (22) is attached to the upper end of the C-pillar decorative panel assembly (1); Its characteristics are: A plurality of snap-fit ​​grooves (111) are provided on the inner structural end surface (11) of the C-pillar, and a plurality of the rubber strip snap-fits (23) are arranged in the snap-fit ​​grooves (111) in a one-to-one correspondence; The rubber strip buckle (23) comprises a buckle body (231) and a rubber sleeve (232) covering the buckle body (231); One side of the inner end surface of the buckle body (231) is provided with a first hook portion (2311), and the other side is provided with a first limiting groove (2312), and the inner side of the buckle groove (111) is provided with a first hook groove (1111) and a first anti-slip rib (1112); when the buckle body (231) enters the buckle groove (111), the first hook portion (2311) is inserted into the first hook groove (1111), and the first anti-slip rib (1112) is snapped into the first limiting groove (2312), and the first hook portion (2311) abuts against the inner wall of the first hook groove (1111), and the first limiting rib abuts against the inner wall of the first limiting groove (2312), so that the rubber strip buckle (23) and the buckle groove (111) form a limiting anti-slip fit.

2. The sealing structure of the low wind noise C-pillar trim assembly according to claim 1 is characterized by: The outer end surface of the rubber sleeve (232) further extends outward and forms a hook sealing portion (2321), and the hook sealing portion (2321) has a hook sealing groove (2321a), and the edge of the side door sheet metal (3) is inserted into the hook sealing groove (2321a), so that a sealing fit is formed between the side door sheet metal (3) and the C-pillar trim assembly (1).

3. The sealing structure of the low wind noise C-pillar trim assembly according to claim 2, characterized in that: The end of the inner structural end surface (11) of the C-pillar away from the rubber strip buckle (23) is bent inward to form a receiving groove (112), and the C-pillar contour sealing strip (21) is at least partially arranged near the receiving groove (112). One end of the side door sheet metal (3) presses the C-pillar contour sealing strip (21) onto the inner structural end surface (11) of the C-pillar and extends into the receiving groove (112).

4. The sealing structure of the low wind noise C-pillar trim assembly according to claim 1, characterized in that: A plurality of gap ribs (2324) are provided on the outer wall of the rubber sleeve (232), and the gap ribs (2324) are against the inner wall of the first hook groove (1111), so that a gap space (2324a) is formed between the inner wall of the first groove and the outer wall of the rubber sleeve (232).

5. The sealing structure of the low wind noise C-pillar trim assembly according to claim 1, characterized in that: The buckle body (231) is recessed with a buckle cavity (2313) for accommodating the door glass (4), and the rubber sleeve (232) is convexly provided with a plurality of sealing ribs (2322) facing in different directions on the side facing the buckle cavity (2313).

6. The sealing structure of the low wind noise C-pillar trim assembly according to claim 5, characterized in that: The surface of the sealing rib (2322) has a Teflon frosted coating (2323).

7. The sealing structure of the low wind noise C-pillar trim assembly according to claim 1, characterized in that: The lower edge of the straight sealing strip (22) has an inwardly buckled rib (221), and the upper edge has an outwardly extending rib (222), a rib groove (223) is formed between the inwardly buckled rib (221) and the outwardly extending rib (222), and the upper edge of the C-pillar trim assembly (1) is bent and enters the rib groove (223); The inner buckling rib (221) abuts against the inner structural end surface (11) of the C-pillar to form a sealing fit; A window frame assembly gap is formed between the upper edge of the C-pillar trim assembly (1) and the rear door window frame component (5), and the outer rib (222) is inserted into the window frame assembly gap to fill the window frame assembly gap, so that a sealed fit is formed between the upper edge of the C-pillar trim assembly (1) and the rear door window frame component (5).

8. The sealing structure of the low wind noise C-pillar trim assembly according to claim 7, characterized in that: The inner end surface of the straight sealing strip (22) further extends inward to form a convex sealing portion (224), and the convex sealing portion (224) can abut against the vehicle C-pillar sheet metal (6) to form a sealing fit, and the convex sealing portion (224) is located on the back side of the rib groove (223).

9. The sealing structure of the low wind noise C-pillar trim assembly according to claim 1, characterized in that: The C-pillar sealing assembly (2) further includes a corner window sealing strip (24), wherein the corner window sealing strip (24) has a supporting section (241), a first sealing section (242), and a second sealing section (243); The support section (241) is arranged along the installation direction of the C-pillar trim assembly (1); The first sealing section (242) is perpendicular to the supporting section (241), and the first sealing section (242) abuts against the corner window glass (7) to form a sealing fit; The second sealing section (243) is formed by bending the inner end of the supporting section (241) toward one side of the C-pillar trim assembly (1). The second sealing section (243) is arc-shaped and fits on the side wall of the C-pillar trim assembly (1).

Images