High-strength fireproof anti-corrosion vehicle skylight interior trim strip

By improving the interior trim strip of the car sunroof into a straight structure and embedding lightweight metal rubber and coating it with fire-retardant and corrosion-resistant materials, the problems of strength and corrosion resistance of the interior trim strip were solved, achieving high strength and durability.

CN223618683UActive Publication Date: 2025-12-02ANHUI ANJIAN AUTO SKYLIGHT TECH CO LTD LUAN CITY
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Patent Information

Application Number
CN202520026886.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-12-02
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

Existing automotive sunroof interior trim strips are of poor strength, prone to falling off, and lack sufficient fire and corrosion resistance, failing to meet the increasingly urgent needs.

Method used

The U-shaped interior trim strip is upgraded to a straight interior trim strip, which is securely fastened to the guide rail with a snap-fit ​​connector. Lightweight metal rubber is inlaid inside the interior trim strip, and the outer surface is coated with fire-retardant and corrosion-resistant materials to improve strength and corrosion resistance.

Benefits of technology

It significantly improves the strength and fire and corrosion resistance of the interior trim strips, prevents them from falling off, extends their service life, and enhances their performance and efficiency.

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Abstract

The utility model provides a high-strength fireproof anti-corrosion vehicle sunroof interior trim strip which comprises a sunroof interior trim strip body designed in a line shape, and the sunroof interior trim strip body is installed on a sunroof installation guide rail. The skylight interior trim strip body comprises a line-shaped interior trim strip tail cone, and an interior trim strip upper clamping piece and an interior trim strip lower clamping piece are integrally connected to the front end of the line-shaped interior trim strip tail cone. According to the skylight interior trim strip, a conventionally-used U-shaped interior trim strip is upgraded and improved into the linear interior trim strip, the interior trim strip is firmly clamped in the guide rail through the clamping heads of different structures and positions, the interior trim strip is prevented from falling off from the guide rail, the high rigidity of the interior trim strip is remarkably improved by embedding light metal rubber into the interior trim strip, and the service life of the interior trim strip is prolonged. The outer surface of the interior trim strip is coated with the fireproof and anti-corrosion material, so that the appearance performance of the interior trim strip is remarkably improved, the fireproof and anti-corrosion effect of the interior trim strip is improved, the service life of the interior trim strip is prolonged, the using effect and efficiency of the interior trim strip are greatly improved, and the interior trim strip has obvious commercial application value.
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Description

Technical Field

[0001] This utility model relates to the technical field of sunroof interior trim strips, specifically to a high-strength, fire-resistant, and corrosion-resistant vehicle sunroof interior trim strip. Background Technology

[0002] The automotive interior system is a crucial component of the car body, and its design workload accounts for over 60% of the overall vehicle styling design workload, far exceeding that of the exterior, making it one of the most important parts of the car body. Each automaker typically has a large automotive interior team to handle a significant amount of engineering work related to the interior.

[0003] Chinese patent discloses an electric sunroof for automobiles (authorization announcement number: CN 2249694Y), which consists of a frame, glass, and a transmission mechanism. The transmission mechanism includes a hand crank, gears, a flexible shaft, a connecting plate, a slider, and a sliding plate. The flexible shaft is made of thin steel wire wound at certain intervals around a thicker steel wire to form a rack, which is installed in a guide tube within a groove in the frame. The connecting plate with helical teeth meshes with the flexible shaft. The connecting plate, slider, and sliding plate combine to tilt the glass, which is mounted on the sliding plate, upwards at a certain angle and moves back and forth to open or close the sunroof. The frame consists of a main frame, a middle frame, and an inner decorative cover. The main frame is screwed to the outside of the car roof via a sealing ring. The middle frame is screwed to the main frame from the car's inner roof. The inner decorative cover is fitted into the gaps around the middle frame. A motor mount is fixed inside the groove of the main frame, and a motor is installed on the motor mount. The output gear of the machine meshes with two flexible shafts; each flexible shaft is fitted into a guide tube screwed into the main frame, and the flexible shafts on both sides are fitted into guide tubes screwed into the main frame. The flexible shafts on both sides mesh with connecting plates, and the left and right sliders are screwed into connecting plates and mounted on the guide rails of the main frame. One side of the slider has two cylindrical protrusions that insert into two oblique grooves on the corresponding side of the slide plate. The slider is also riveted with a grooved connecting piece. One end of the slide plate has a cylindrical protrusion that inserts into the hole of the connecting piece. That is, the cylindrical protrusions of the slider and the slide plate insert into the grooves or holes of each other, causing the slider to drive the slide plate and the glass to tilt up and down, forward or backward. The main frame and the middle frame are made of special engineering plastic by hot pressing, and the inner decorative cover is made of soft rubber by hot pressing. However, the interior trim strips used in this type of electric sunroof have poor strength and are prone to falling off after being installed on the roof of the car. Furthermore, the interior trim strips are not easy to install when installing the sunroof pull plate.

[0004] Conventional sunroof interior trim strips are made of organic materials such as rubber, but their structural strength, cushioning effect, fire resistance, and corrosion resistance still cannot meet the increasingly urgent needs of daily life and production. There is an urgent need to design a new type of sunroof interior trim strip to solve the practical problems faced. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing a high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs. The sunroof trim strip upgrades the conventional U-shaped trim strip to a straight-line design. Using connectors with different structures and positions, the trim strip is securely fastened to the guide rail, preventing it from detaching. The trim strip's strength and rigidity are significantly enhanced by embedding lightweight metal rubber inside. Furthermore, the exterior surface is coated with fire-resistant and corrosion-resistant materials, significantly improving its appearance, fire resistance, and service life, thus greatly enhancing its usability and efficiency.

[0006] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0007] A high-strength, fire-resistant, and corrosion-resistant sunroof interior trim strip includes a sunroof interior trim strip body with a straight design, which is installed on a sunroof mounting rail. The sunroof interior trim strip body includes a straight trim strip tail cone, and an upper trim strip clip and a lower trim strip clip are integrally connected to the front end of the tail cone. The upper trim strip clip and the lower trim strip clip form a trim strip mounting groove that cooperates with the sunroof mounting rail. A lightweight metal rubber inner frame is embedded inside the sunroof interior trim strip body, and a modified rubber support body is wrapped around the outer surface of the lightweight elastic metal inner frame. The outer surface of the modified rubber support body is coated with a fire-resistant and corrosion-resistant coating.

[0008] As a preferred technical solution, the front end of the upper clip of the interior trim strip is provided with several parallel clip heads, and the front end of the lower clip of the interior trim strip is provided with several diamond-shaped clip heads.

[0009] As a preferred technical solution, a number of interior trim mounting slot heads are provided on the inner wall surface of the interior trim mounting slot formed between the upper and lower interior trim clips.

[0010] As a preferred technical solution, the interior trim mounting groove formed between the upper and lower trim clips is engaged with the sunroof mounting rail via parallel clip heads and prismatic clip heads, and the parallel clip heads and prismatic clip heads do not contact each other.

[0011] As a preferred technical solution, the interior trim mounting slot head on the inner wall of the interior trim mounting slot is directly connected to the sunroof mounting rail from the parallel clip head and the prismatic clip head.

[0012] As a preferred technical solution, the sunroof interior trim strip body and the sunroof mounting rail are engaged in the interior trim strip mounting slot between the upper and lower trim strip clips via the sunroof mounting rail, and are connected by direct contact with the window mounting rail through the parallel clip head, the prismatic clip head, and the interior trim strip slot clip head.

[0013] As a preferred technical solution, the lightweight metal rubber inner frame is completely embedded inside the modified rubber support, and the average thickness of the lightweight metal rubber inner frame is less than or equal to the average thickness of the modified rubber support.

[0014] As a preferred technical solution, the outer surface of the modified rubber support is completely covered with a fireproof and corrosion-resistant coating, the thickness of which is 1 / 4 to 1 / 2 of the average thickness of the modified rubber support.

[0015] This utility model provides a high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs, which has the following advantages:

[0016] This utility model of a car sunroof interior trim strip upgrades the conventional U-shaped trim strip to a straight trim strip. The trim strip is securely fastened to the guide rail using connectors with different structures and positions, preventing it from detaching. The trim strip's strength and rigidity are significantly improved by embedding lightweight metal rubber inside. Furthermore, the exterior surface of the trim strip is coated with fire-retardant and corrosion-resistant materials, significantly improving its appearance, fire resistance, and service life. This greatly enhances the trim strip's effectiveness and efficiency, demonstrating significant commercial application value. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs, which is based on this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs according to this utility model.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs according to this utility model.

[0020] In the picture: 1. Sunroof interior trim strip; 2. Sunroof mounting rail;

[0021] 10. Straight interior trim strip tail cone; 11. Upper clip of interior trim strip; 12. Lower clip of interior trim strip; 13. Interior trim strip mounting slot; 14. Parallel clip head; 15. Rhomboid clip head; 16. Interior trim strip slot head; 17. Lightweight metal rubber inner frame; 18. Modified rubber support; 19. Fireproof and corrosion resistant coating. Detailed Implementation

[0022] The present invention will be further described and illustrated below with reference to specific embodiments and accompanying drawings.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1

[0026] like Figure 1 As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip includes a sunroof interior trim strip body 1 with a straight design, which is installed on the sunroof mounting rail 2.

[0027] like Figure 2 As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip is provided. The sunroof interior trim strip body 1 includes a straight interior trim strip tail cone 10. The front end of the straight interior trim strip tail cone 10 is integrally connected with an upper interior trim strip clip 11 and a lower interior trim strip clip 12. An interior trim strip mounting groove 13 is formed between the upper interior trim strip clip 11 and the lower interior trim strip clip 12 to cooperate with the sunroof mounting guide rail 2 for installation.

[0028] like Figure 3 As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip has a lightweight metal rubber inner frame 17 embedded inside the sunroof interior trim strip body 1. The outer surface of the lightweight elastic metal inner frame 17 is wrapped with a modified rubber support 18, and the outer surface of the modified rubber support 18 is coated with a fireproof and corrosion-resistant coating 19.

[0029] like Figure 3 As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip has several parallel clip heads 14 at the front end of the upper clip 11 and several prismatic clip heads 15 at the front end of the lower clip 12. Several interior trim strip groove heads 16 are provided on the inner wall of the interior trim strip mounting groove 13 formed between the upper clip 11 and the lower clip 12.

[0030] like Figure 3As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip has an interior trim strip mounting groove 13 formed between the upper trim strip clip 11 and the lower trim strip clip 12. This groove is engaged with the sunroof mounting guide rail 2 via a parallel clip head 14 and a prismatic clip head 15. The parallel clip head 14 and the prismatic clip head 15 are not in contact with each other. The interior trim strip groove clip head 16 on the inner wall of the interior trim strip mounting groove 13 is directly engaged with the sunroof mounting guide rail 2 from the parallel clip head 14 and the prismatic clip head 15.

[0031] like Figure 3 As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip is provided. The sunroof interior trim strip body 1 and the sunroof mounting rail 2 are engaged in the interior trim strip mounting slot 13 between the upper trim strip clip 11 and the lower trim strip clip 12 through the sunroof mounting rail 2. The strip is then directly connected to the sunroof mounting rail 2 through the parallel clip head 14, the prism clip head 15 and the interior trim strip slot clip head 16.

[0032] Furthermore, the lightweight metal rubber inner frame 17 is completely embedded inside the modified rubber support 18, and the average thickness of the lightweight metal rubber inner frame 17 is less than or equal to the average thickness of the modified rubber support 18.

[0033] Furthermore, the outer surface of the modified rubber support 18 is completely covered with a fire-retardant and corrosion-resistant coating 19, the thickness of which is 1 / 4 to 1 / 2 of the average thickness of the modified rubber support 18.

[0034] During operation, the sunroof interior trim strip body 1 is inserted into the sunroof mounting guide rail 2 through the interior trim strip mounting slot 13 formed between the upper interior trim strip clip 11 and the lower interior trim strip clip 12. At this time, the interior trim strip slot clip head 16 on the inner wall of the interior trim strip mounting slot 13 is directly connected to the sunroof mounting guide rail 2 from the parallel clip head 14 and the rhomboid clip head 15.

[0035] The lightweight metal-rubber inner frame 17 embedded in the innermost part of the sunroof interior trim strip body 1 provides the most direct support and also reinforces the sunroof interior trim strip. The modified rubber support body 18 uses the most commonly used TPV material, which effectively improves the quality and strength of the sunroof interior trim strip and reduces the odor of the interior trim strip. The outermost surface is coated with a fire-retardant and anti-corrosion coating 19, which effectively improves the fire-retardant and anti-corrosion effect of the sunroof interior trim strip.

[0036] Example 2

[0037] The difference between this embodiment and Embodiment 1 is that:

[0038] like Figure 2As shown, a high-strength fireproof and corrosion-resistant vehicle sunroof interior trim strip replaces the lightweight metal rubber inner frame 17 inside the modified rubber support 18 with a rubber irregular cavity, and fills the rubber irregular cavity with a non-Newtonian fluid medium, which can also improve the strength of the sunroof interior trim strip.

[0039] Example 3

[0040] The difference between this embodiment and Embodiment 1 is that:

[0041] like Figure 2 As shown, a high-strength fire-resistant and corrosion-resistant vehicle sunroof interior trim strip is made by first wrapping a layer of woven carbon fiber material on the outer surface of a modified rubber support 18, and then coating the outer surface of the woven carbon fiber material with a fire-resistant and corrosion-resistant coating 19. The strength of the sunroof interior trim strip is improved by using woven carbon fiber material.

[0042] Example 4

[0043] The difference between this embodiment and Embodiment 1 is that:

[0044] like Figure 2 As shown, a high-strength fire-resistant and corrosion-resistant vehicle sunroof interior trim strip has a modified rubber support 18 as the innermost layer, a lightweight metal rubber inner frame 17 wrapped around the outer surface of the modified rubber support 18, a layer of woven carbon fiber material wrapped around the outer surface of the lightweight metal rubber inner frame 17, and a fire-resistant and corrosion-resistant coating 19 applied to the outer surface of the woven carbon fiber material. The strength of the sunroof interior trim strip is improved by using the woven carbon fiber material.

[0045] In this invention, the sunroof interior trim strip is upgraded from the conventional U-shaped trim strip to a straight trim strip. The trim strip is securely fastened to the guide rail using connectors with different structures and positions, preventing it from detaching. The trim strip's strength and rigidity are significantly improved by embedding lightweight metal rubber inside. Furthermore, the exterior performance of the trim strip is significantly improved by coating its outer surface with fire-retardant and corrosion-resistant materials, enhancing its fire and corrosion resistance and extending its service life. This greatly enhances the trim strip's usability and efficiency, demonstrating significant commercial application value.

[0046] The technical solutions disclosed in the embodiments of this utility model have been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-strength, fire-resistant, and corrosion-resistant interior trim strip for vehicle sunroofs, characterized in that: It includes a sunroof interior trim strip body (1) with a straight design, which is installed on the sunroof mounting rail (2); The sunroof interior trim body (1) includes a straight interior trim tail cone (10), and the front end of the straight interior trim tail cone (10) is integrally connected with an upper interior trim clip (11) and a lower interior trim clip (12). An interior trim mounting slot (13) is formed between the upper interior trim clip (11) and the lower interior trim clip (12) to cooperate with the sunroof mounting guide rail (2). The interior of the sunroof trim strip body (1) is inlaid with a lightweight metal rubber inner frame (17), and the outer surface of the lightweight elastic metal inner frame (17) is wrapped with a modified rubber support (18), and the outer surface of the modified rubber support (18) is coated with a fireproof and corrosion-resistant coating (19).

2. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 1, characterized in that: The front end of the upper clip (11) of the interior trim strip is provided with several parallel clip heads (14), and the front end of the lower clip (12) of the interior trim strip is provided with several rhomboid clip heads (15).

3. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 2, characterized in that: The inner wall surface of the interior trim mounting groove (13) formed between the upper interior trim clip (11) and the lower interior trim clip (12) is provided with a plurality of interior trim clip heads (16).

4. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 3, characterized in that: The interior trim mounting slot (13) formed between the upper trim clip (11) and the lower trim clip (12) is engaged with the sunroof mounting rail (2) through the parallel clip head (14) and the prismatic clip head (15), and the parallel clip head (14) and the prismatic clip head (15) are not in contact.

5. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 3, characterized in that: The interior trim mounting slot (13) has an interior trim slot head (16) on its inner wall surface that is directly engaged with the sunroof mounting rail (2) from the parallel clip head (14) and the prismatic clip head (15).

6. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to any one of claims 1-5, characterized in that: The sunroof interior trim body (1) and the sunroof mounting rail (2) are engaged in the interior trim mounting slot (13) between the upper trim clip (11) and the lower trim clip (12) through the sunroof mounting rail (2), and are directly connected to the window mounting rail (2) through the parallel clip head (14), the prism clip head (15) and the interior trim slot clip head (16).

7. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 6, characterized in that: The lightweight metal rubber inner frame (17) is completely embedded inside the modified rubber support (18), and the average thickness of the lightweight metal rubber inner frame (17) is less than or equal to the average thickness of the modified rubber support (18).

8. The high-strength fire-resistant and corrosion-resistant interior trim strip for vehicle sunroofs according to claim 7, characterized in that: The outer surface of the modified rubber support (18) is completely covered with a fireproof and corrosion-resistant coating (19), and the thickness of the fireproof and corrosion-resistant coating (19) is 1 / 4 to 1 / 2 of the average thickness of the modified rubber support (18).

Citation Information

Patent Citations

  • Electric automotive skylight

    CN2249694Y