An embedded bidirectional light source structure for automotive sunroof roller blinds

By integrating optical fibers, LED light panels, and conductive slip rings into the sunroof blind of a car, an embedded bidirectional light source structure is created, solving the problems of the inability to independently integrate the light source and the unreasonable structure in the existing technology. This achieves efficient and stable light source installation and rich light color effects, while avoiding damage to the original vehicle structure.

CN224434258UActive Publication Date: 2026-06-30AX AUTOMOBILE TECHNOLOGY (WUHAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AX AUTOMOBILE TECHNOLOGY (WUHAN) CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing car sunroof roller blinds cannot have an independent built-in light source, the optical fiber cannot be evenly distributed, the unreasonable structure leads to unstable production, ordinary LED beads have a single light output direction and cannot achieve rich light color effects, and traditional modification damages the original vehicle structure.

Method used

Design an embedded bidirectional light source structure for automotive sunroof roller blinds, integrating optical fiber, LED light board and conductive slip ring into an aluminum rod with a diameter of about 20mm, and fixed to the original sunroof by an integrally molded rod end plug, combining RGBW color LED beads and optical fiber to achieve multi-color light effects, and adopting modular production.

Benefits of technology

It achieves efficient and stable light source installation without damaging the original vehicle structure, and features rich light color effects and meteor shower decorations, improving production efficiency and quality stability, and extending the service life of optical fibers.

✦ Generated by Eureka AI based on patent content.

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Abstract

An embedded bidirectional light source structure for automotive sunroof roller blinds includes a rod end plug, a conductive slip ring, an injection-molded top cover, a tubular injection-molded part, an aluminum rod, and an LED light panel. This invention features a reasonable structure that is simple and efficient compared to traditional installation methods, reducing or even eliminating damage to the original vehicle structure. Because it integrates optical fibers, the LED light panel, and the conductive slip ring within an aluminum rod with a diameter of only about 20mm, it can be fixed to the original sunroof roller blind frame via an integrally molded rod end plug with a shaft. Combined with the original sunroof's movable rod, this achieves a highly efficient, pre-assembleable, and stable embedded light source structure for automotive sunroof roller blinds that does not damage the original sunroof structure. Furthermore, this invention incorporates RGBW color-changing LED beads and meteor fiber optics to achieve a meteor shower decorative lighting effect, meeting more usage needs and aesthetic requirements while avoiding or replacing the original destructive installation methods.
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Description

Technical Field

[0001] This utility model belongs to the field of light source systems, and in particular relates to an embedded bidirectional light source structure for automotive sunroof roller blinds. Background Technology

[0002] As living standards improve, customers in the car modification market are increasingly demanding higher quality sunroof sunshades for starry sky roofs. However, there are few professionals capable of performing the installation. This is because existing aftermarket starry sky roof systems require individual modifications to each vehicle, which can damage the original sunroof structure. Furthermore, the following issues exist with currently installed starry sky roof lighting systems:

[0003] 1) The problem that traditional car sunroof roller blinds cannot have an independent built-in light source.

[0004] 2) The built-in light source of the roller shutter cannot conduct electricity independently.

[0005] 3) Optimize the problem of uneven fiber distribution.

[0006] 4) The structure is unreasonable, making mass production impossible. The quality of manual production is uncontrollable, production is unstable, and the processing cycle is long.

[0007] 5) The LEDs are ordinary RGBW with a single light output direction, which cannot achieve richer light color effects or meet the wiring requirements for the light output direction.

[0008] Therefore, it is necessary to conduct research and development to address the above-mentioned problems and solve the related pain points. Utility Model Content

[0009] In view of the problems existing in the prior art, the purpose of this utility model is to provide an embedded bidirectional light source structure for automobile sunroof roller blinds.

[0010] To solve the above problems, the present invention adopts the following technical solution:

[0011] An embedded bidirectional light source structure for a car sunroof roller blind includes a rod end plug, a conductive slip ring, an injection-molded top cover, a tubular injection-molded part, an aluminum rod, an LED light panel, and a fiber optic pre-installed lamp head. The aluminum rod contains a tubular injection-molded part with a matching top cover; the tubular injection-molded part has a cavity structure, and its inner cavity houses an LED light panel electrically connected to the conductive slip ring via a power line; the top cover and the tubular injection-molded part are fitted together to form a tube that provides auxiliary fixation and protection for the LED light panel; the LED light panel has several RGBW color LED beads on each side, and each RGBW color LED bead is equipped with a fiber optic pre-installed lamp head; the conductive slip ring is located inside the rod end plug and electrically connected to the LED light panel in the tubular injection-molded part; and a roller blind that can be unfolded or rolled up is mounted on the aluminum rod.

[0012] Preferably, the aluminum rod is fixed to the original sunroof roller blind frame by an integrally formed rod end plug with a shaft.

[0013] Preferably, the roller blind is fixed at one end to an aluminum rod, and at the other end is fixed to the movable rod of the original sunroof.

[0014] Preferably, there are two rod end plugs, which are respectively embedded at both ends of the aluminum rod. The first rod end plug, which assists in the assembly of the conductive slip ring, has a through hole on its shaft to allow the power line to be introduced and electrically connected to the conductive slip ring.

[0015] Preferably, the fiber optic pre-installed lamp head includes a lamp housing, an optical lens, and several optical fibers. The optical lens is embedded in the lamp housing, while the several optical fibers are integrated and fixed in the lamp housing, located above the optical lens.

[0016] Preferably, both the top cover and the tubular injection molded part are formed with several independent holes for aligning multiple fiber optic pre-installed lamp heads with optical fibers.

[0017] Preferably, the aluminum rod has symmetrical slots and through holes formed at the positions corresponding to the independent holes, so that optical fibers can be led out and arranged on the roller shutter.

[0018] Preferably, the independent holes in the injection molded part cover and the tubular injection molded part are all fitted with rubber sleeves to protect the installed fiber optic pre-installed lamp head.

[0019] Beneficial effects of this utility model

[0020] Compared to existing technologies, the advantages of this utility model are as follows: This utility model has a reasonable structure, is simple and efficient compared to traditional installation methods, and reduces or even does not damage the original vehicle structure. Because it integrates optical fibers, a light panel, and a conductive slip ring into an aluminum rod with a diameter of only about 20mm, it can be fixed to the original sunroof roller blind frame through an integrally formed rod end plug with a shaft. In addition, with the cooperation of the original sunroof's movable rod, it achieves a highly efficient, pre-assembleable, stable quality, and non-destructive embedded light source structure for automotive sunroof roller blinds. Furthermore, this utility model is equipped with RGBW color LED beads and meteor fiber to achieve a meteor shower decorative lighting effect, which can meet more usage needs and aesthetic requirements while avoiding or replacing the original destructive installation method. Attached Figure Description

[0021] Figure 1 This is an assembly drawing of the present utility model.

[0022] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0023] Figure 3for Figure 2 This is a partial disassembly diagram of [the part].

[0024] Figure 4 and Figure 7 All of these are schematic diagrams illustrating the use of this utility model.

[0025] Figure 5 This is a partial exploded view of the structure of this utility model.

[0026] Figure 6 for Figure 5 A magnified exploded view of a portion of the image. Detailed Implementation

[0027] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0028] like Figures 1 to 7 As shown, this utility model discloses an embedded bidirectional light source structure for a car sunroof roller blind. This utility model mainly consists of the following parts: rod end plug (1), conductive slip ring (2), injection molded part cover (3), tubular injection molded part (4), aluminum rod (5), LED light board (6), and fiber optic pre-installed lamp head (7). Its general assembly structure is as follows:

[0029] The aluminum rod (5) is provided with a tubular injection molded part (4) with a matching injection molded part cover (3);

[0030] The tubular injection molded part (4) has a cavity structure, and its inner cavity is provided with an LED light board (6) electrically connected to the conductive slip ring (2) via a power line; the upper cover (3) of the injection molded part is fastened and assembled with the tubular injection molded part (4) to form a tube to provide auxiliary fixation and cover protection for the LED light board (6); the LED light board (6) is a light board with several RGBW color LED beads (12) on both sides, and each RGBW color LED bead (12) is equipped with a fiber optic pre-installed lamp head (7); the conductive slip ring (2) is set in the rod end plug (1) and electrically connected to the LED light board (6) in the tubular injection molded part (4); the aluminum rod (5) is provided with a roll-up curtain (13) that can be unfolded or rolled up.

[0031] This utility model has a reasonable structure and is simple and efficient compared to traditional installation methods. It reduces or even does not damage the original vehicle structure because it integrates the fiber optic pre-installed lamp head (7) with optical fiber (72), LED lamp board (6) and conductive slip ring (2) into an aluminum rod (5) with a diameter of only about 20mm. It also has a split-design injection molded cover (3) and tubular injection molded part (4) to protect and reinforce the LED lamp board (6). This structure can be mass-produced because the lamp housing (70) with lamp housing optical lens (71) and several optical fibers (72) can be regarded as a module, that is, the fiber optic pre-installed lamp head (7), which is pre-installed with resistors, chips and RGBW color LED beads. The LED light panel (6) of 12) is considered as a module, and the aluminum rod (5) body equipped with rod end plug (1) is considered as a module. After production, each component can be modularly assembled with conductive slip ring (2). This can achieve higher quality, stability and shorter production cycle compared to previous manual modification. It solves the problem that the finished light source cannot be independently built into the roller blind (13). At the same time, it can also be fixed on the original car sunroof roller blind frame (8) by the rod end plug (1) with the shaft rod (10) formed in one piece. With the cooperation of the original car sunroof movable rod (9), a high-efficiency, pre-assembleable, high-quality, and non-destructive embedded light source structure for car sunroof roller blinds can be achieved.

[0032] In addition, the RGBW color LED beads (12) and optical fiber (72) set in this utility model can realize a meteor shower decorative lighting effect with rich color changes and controllable lighting sequence. Based on the bidirectional light output design and the configuration of RGBW color LED beads (12), this utility model can meet more usage needs and the required aesthetics while avoiding and replacing the original destructive installation method.

[0033] It is worth mentioning that, since the optical fiber is arranged in the roller blind (13), and the roller blind (13) reciprocates with the original sunroof's movable rod (9), the optical fiber is prone to fatigue damage. In order to extend its service life, the independent holes (30) opened on the injection molded part cover (3) and the tubular injection molded part (4) are all fitted with rubber sleeves to protect the optical fiber pre-installed lamp head (7).

[0034] Regarding the rod end plug (1), there are two rod end plugs (1), which are respectively installed at both ends of the aluminum rod (5). The first rod end plug (1) that assists in the assembly of the conductive slip ring (2) has a through hole on its shaft (10) so that the power line can be introduced and electrically connected to the conductive slip ring (2). This design ensures the reasonable routing of the wires.

[0035] Regarding the fiber optic lamp head that is matched with the conductive slip ring (2), its normal specification is to be equipped with a built-in light source heat sink to assist in the operation. This design can maximize the effective heat dissipation of the built-in light source during operation, thereby increasing its service life.

[0036] The advantage of being able to extend the explanation is:

[0037] 1. This utility model ensures that the power cord does not rotate during the self-rotation unfolding or rewinding process of the roller shutter (13) by setting a conductive slip ring (2), thus avoiding the problems of wire breakage and knotting.

[0038] 2. In addition to the holes for optical fiber (72) to be led out, the inner cavity of the tubular injection molded part (4) is also integrally formed with a mounting plate for positioning and installing the LED light board (6) to securely assemble it.

[0039] Based on the common aluminum rod (5) with a retraction spring, this utility model develops a light source structure that can be integrated into the diameter range of 18mm to 22mm, and the assembled components can be modularly produced. This design has the advantages of high efficiency, pre-assembly, stable quality, and no damage to the original sunroof structure, which is currently impossible to achieve by manual modification.

[0040] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. An embedded bidirectional light source structure for a car sunroof roller blind, comprising a rod end plug (1), a conductive slip ring (2), an injection molded part cover (3), a tubular injection molded part (4), an aluminum rod (5), an LED light panel (6), and a fiber optic pre-installed lamp head (7), characterized in that, The aluminum rod (5) is provided with a tubular injection molded part (4) with a matching injection molded part cover (3); The tubular injection molded part (4) has a cavity structure, and its inner cavity is provided with an LED light board (6) that is electrically connected to the conductive slip ring (2) through a power line; The injection molded part cover (3) is fastened and assembled with the tubular injection molded part (4) to form a tubular part to provide auxiliary fixation and cover protection for the LED light panel (6); The LED light board (6) is a light board with several RGBW color LED beads (12) on both sides, and each RGBW color LED bead (12) is equipped with a fiber optic pre-installed lamp head (7). The conductive slip ring (2) is disposed inside the rod end plug (1) and is electrically connected to the LED light board (6) in the tubular injection molded part (4); The aluminum rod (5) is equipped with a roll-up blind (13) that can be unfolded or rolled up.

2. The embedded bidirectional light source structure for a sunroof roller shutter according to claim 1, characterized in that, The aluminum rod (5) is fixed to the original sunroof roller blind frame (8) by a rod end plug (1) with an integrally formed shaft (10).

3. The structure of claim 1, wherein the structure is characterized by, The roller blind (13) is fixed at one end to the aluminum rod (5), and at the other end is fixed to the movable rod (9) of the original sunroof.

4. The structure of claim 1, wherein the structure is characterized by, There are two rod end plugs (1), which are respectively installed at both ends of the aluminum rod (5). The first rod end plug (11), which assists in the assembly of the conductive slip ring (2), has a through hole on its shaft (10) so that the power line can be introduced and electrically connected to the conductive slip ring (2).

5. The structure of claim 1, wherein the structure is embedded in the sunroof roller blind. The fiber optic pre-installed lamp head (7) includes a lamp housing (70), an optical lens (71), and several optical fibers (72). The optical lens (71) is embedded in the lamp housing (70), while the several optical fibers (72) are integrated and fixed in the lamp housing (70) and located above the optical lens (71).

6. The structure of claim 1, wherein the structure is embedded in a sunroof roller blind. Both the injection molded part cover (3) and the tubular injection molded part (4) are formed with several independent holes (30) for multiple fiber optic pre-installed lamp heads (7) with optical fibers (72) to be aligned.

7. The structure of claim 1, wherein the structure is embedded in a sunroof roller blind. The aluminum rod (5) is symmetrically provided with slots (50) and through holes (51) at the positions formed by the independent holes (30) so that the optical fiber (72) can be led out and arranged on the roller shutter (13).

8. The structure of claim 1, wherein the structure is embedded in a sunroof roller blind. The independent holes (30) on the injection molded part cover (3) and the tubular injection molded part (4) are all fitted with rubber sleeves to protect the installed fiber optic pre-installed lamp head (7).