Light source structure for automobile skylight roller shutter

Abstract

A light source structure for an automobile skylight roller shutter comprises an aluminum rod, an aluminum alloy heat dissipation auxiliary inner pipe, a PCB lamp panel, a guide wire outlet sheath, a force guide end plug, a conductive sliding ring and an optical guide wire outlet column, and a penetrating type clamping through groove is formed in the aluminum alloy heat dissipation auxiliary inner pipe in the axial direction; the PCB lamp panel is a lamp panel with a plurality of LED lamp beads, IC chips and resistors welded on the two faces. The PCB lamp panel is embedded into the clamping through groove of the aluminum alloy heat dissipation auxiliary inner tube; the aluminum rod is sleeved outside the aluminum alloy heat dissipation auxiliary inner pipe connected with the force guide end plug; each LED lamp bead is provided with a guide wire outlet sheath, an optical guide light outlet column and a plurality of optical fibers. The aluminum alloy heat dissipation auxiliary inner tube is integrally formed, the PCB lamp panel can be directly inserted and assembled, and the wire outlet hole site and the guide wire outlet sheath are designed and formed with a certain inclination, so that the shearing force of the root part of the optical fiber which is led out and arranged can be reduced, and the service life is further prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of light source system technology, and in particular relates to a light source structure for automobile sunroof roller blinds. Background Technology

[0002] As demands for the sophistication, aesthetics, and comfort of car interiors increase, the design of ceiling lighting is constantly evolving and improving. Vehicle starry sky ceiling lighting uses multiple optical fibers to transmit light of various colors to the ceiling, creating a variety of soft lighting effects. Like the stars in the night sky, starry sky lighting shines brightly without being dazzling, and it features low energy consumption and safe operation.

[0003] Currently available automotive starry sky lighting devices, specifically the starry sky-inspired light source structure used in car sunroof roller blinds, require optimization in their overall structure, such as heat dissipation, assembly structure, and fiber optic cable layout. This is because most optical fibers in such light source structures are led out vertically at 90° from the light panel and laid on the roller blind. This layout method is described in utility model patent CN223020063U. Such vertical fiber extension cannot withstand long-term bending and the pulling force of the roller blind.

[0004] Therefore, it is necessary to design a starry sky-like light source structure for automotive sunroof roller blinds in order to improve the existing light source structure for sunroof roller blinds. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a light source structure for automobile sunroof roller blinds.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A light source structure for a car sunroof roller blind includes an aluminum rod, an aluminum alloy heat dissipation auxiliary inner tube, a PCB lamp board, a guide cable sheath, a force-guiding end plug, a conductive slip ring, and an optical guide light column. The aluminum alloy heat dissipation auxiliary inner tube has a through-type mounting slot in the axial direction and two rows of cable holes formed in the radial direction. The PCB lamp board is a lamp board with several LED beads, IC chips, and resistors soldered on both sides, and also includes a PCB assembly. The conductive slip ring is equipped with a force-guiding end plug, and the conductive slip ring is built into the force-guiding end plug. The PCB lamp board is embedded in the mounting slot of the aluminum alloy heat dissipation auxiliary inner tube. The PCB lamp board is connected to the PCB assembly. It is inserted and connected to a conductive slip ring with a force-guiding end plug; the aluminum rod is fitted outside the aluminum alloy heat dissipation auxiliary tube connected to the force-guiding end plug; each LED bead is equipped with a guide wire exit sleeve, an optical guide light output column and several optical fibers. The guide wire exit sleeve is snapped into the wire exit hole, and one end of the optical fiber is optically connected to the LED bead through the optical guide light output column and then led out from the guide wire exit sleeve and laid on the roller shutter; the opening where the wire exit hole connects with the guide wire exit sleeve is designed with a corresponding bevel, and the guide wire exit sleeve is correspondingly tilted and snapped into the wire exit hole, and the angle between the central axis of the guide wire exit sleeve and the PCB lamp board is between 10° and 85°.

[0008] Preferably, the aluminum rod has a through hole that is aligned with the outlet hole for the optical fiber to be led out.

[0009] Preferably, the aluminum rod is equipped with an unfoldable or retractable roller blind, and the other end of the roller blind is fixed to the movable rod of the original sunroof.

[0010] Preferably, the aluminum alloy heat dissipation auxiliary inner tube and the force guide end plug are both formed with positioning reinforcing ribs, while the aluminum rod is designed with positioning grooves. The aluminum alloy heat dissipation auxiliary inner tube, the force guide end plug and the aluminum rod are assembled together to prevent mistake by the interlocking of the positioning reinforcing ribs and the positioning grooves.

[0011] Preferably, each cable outlet hole on the aluminum alloy heat dissipation auxiliary tube is designed with a locking groove, and each guide cable outlet sleeve is formed with a positioning rib. The guide cable outlet sleeve is assembled on the aluminum alloy heat dissipation auxiliary tube by the cooperation of the locking groove and the positioning rib to prevent mistaken assembly.

[0012] Beneficial effects of this utility model

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. Compared with the existing split aluminum alloy heat dissipation auxiliary inner tube, the aluminum alloy heat dissipation auxiliary inner tube of this utility model is integrally formed, and the PCB light board can be directly inserted for assembly. While reducing the number of parts, it is also easier to install the PCB light board, and the PCB light board assembly is more stable.

[0015] 2. Compared to existing optical fibers that are vertically led out at 90° from the light board, this invention designs the cable outlet holes and guide cable outlet sleeves on the inner tube of the aluminum alloy heat dissipation auxiliary device with a certain angle. Because the root of the optical fiber cannot withstand long-term bending and the pulling force of the roller shutter, the optical fiber will fall off or break during the winding process under long-term use. Therefore, by leading out the optical fiber at a certain angle to lay it on the roller shutter, this design can reduce the shear force at the root of the optical fiber and avoid the shear force from concentrating at the root of the optical fiber. This structural design can effectively absorb vibration and tension, protect the fragile connection points of the optical fiber, and significantly increase the service life compared to the vertical cable outlet holes and wiring method. Attached Figure Description

[0016] Figure 1 This is an assembly drawing of the present utility model.

[0017] Figure 2 This is a partial structural schematic diagram of the aluminum rod of this utility model.

[0018] Figure 3 The diagram shows a partial explosion structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the assembly of the aluminum alloy heat dissipation auxiliary tube and the force guide plug of this utility model.

[0020] Figure 5 This is a partially enlarged structural diagram of the inner tube of the aluminum alloy heat dissipation auxiliary device of this utility model.

[0021] Figure 6 This is a side view of the inner tube of the aluminum alloy heat dissipation auxiliary device of this utility model.

[0022] Figure 7 This is a schematic diagram of the assembly structure of the PCB lamp board of this utility model.

[0023] Figure 8 This is a schematic diagram of the force-guiding end plug of this utility model.

[0024] Figure 9 This is a schematic diagram of an existing roller shutter with optical fibers extended from one side and laid out on one side.

[0025] Figure 10 This is a schematic diagram showing the optical fibers of an existing roller shutter being led out from the outlet holes and evenly distributed on the roller shutter. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 8As shown, this utility model discloses a light source structure for a car sunroof roller blind. This utility model mainly consists of an aluminum rod 1, an aluminum alloy heat dissipation auxiliary inner tube 2, a PCB lamp board 3, a guide cable sheath 4, a force-guiding end plug 5, and a conductive slip ring 6. Its general assembly structure is as follows:

[0028] The aluminum alloy heat dissipation auxiliary tube 2 has a through-type mounting slot 20 in the axial direction, and two rows of wiring holes 21 in the radial direction; the PCB lamp board 3 is a lamp board with several LED beads 30, IC chips and resistors soldered on both sides, and the PCB lamp board 3 is also designed with a PCB assembly 31; the conductive slip ring 6 is equipped with a force-guiding end plug 5, and the conductive slip ring 6 is built into the force-guiding end plug 5; the PCB lamp board 3 is embedded in the mounting slot 20 of the aluminum alloy heat dissipation auxiliary tube 2; the PCB lamp board 3 is connected to the conductive slip ring 6 with the force-guiding end plug 5 through the PCB assembly 31; the aluminum rod 1 is fitted into the part connected to the force-guiding end plug 5. Outside the aluminum alloy heat dissipation auxiliary inner tube 2, the aluminum rod 1 is provided with a through hole 10 corresponding to the cable outlet hole 21 for fiber optic cable to be led out; each LED bead 30 is equipped with a guide cable outlet sleeve 4, an optical guide light outlet column 7 and several optical fibers. The guide cable outlet sleeve 4 is snapped into the cable outlet hole 21, and one end of the optical fiber is optically connected to the LED bead 30 through the optical guide light outlet column 7 and then led out from the guide cable outlet sleeve 4 and laid on the roller blind; the roller blind is set on the aluminum rod 1, and the other end of the roller blind is fixed to the movable rod of the original sunroof. The roller blind can be rolled up on the aluminum rod 1 with the opening and closing device of the sunroof, or unfolded on the aluminum rod 1.

[0029] Regarding the PCB light board 3, it can be explained that it has several LED beads 30 soldered on both sides. One side of the LED beads 30 can be used for constant lighting, while the other side can be used for simulating starry sky or shooting star flashing. Of course, existing IC chips with pre-set control programs can also be installed on the PCB light board 3 to achieve individual control of each LED bead 30, thereby achieving the desired lighting effect and further increasing adaptability, practicality and flexibility.

[0030] Furthermore, this invention achieves electrical conduction by setting a conductive slip ring 6 and a PCB assembly 31, avoiding problems such as non-rotation, wire breakage, or knotting that can occur during the self-rotation unfolding or rewinding of the roller shutter due to the use of wire connections. To ensure consistency during rotation, the aluminum alloy heat dissipation auxiliary inner tube 2 and the force guide end plug 5 of this invention are both formed with positioning reinforcing ribs 99, which can engage with the positioning groove 11 designed on the aluminum rod 1 for positioning. This structural design serves two purposes: firstly, to prevent foolproof assembly, ensuring accurate alignment and installation of the aluminum rod 1, the aluminum alloy heat dissipation auxiliary inner tube 2, and the force guide end plug 5, allowing the invention to rotate synchronously and preventing misalignment that could damage the optical fiber.

[0031] It is worth noting that, to further protect the optical fiber and improve its service life, the cable outlet holes 21 on the inner tube 2 of the aluminum alloy heat dissipation auxiliary device are all angled. Specifically, the angle between the central axis of the guide cable outlet sleeve 4 and the PCB lamp board 3 in the plane is between 10° and 85°. Correspondingly, the guide cable outlet sleeve 4, which is fitted into the cable outlet hole 21, is also injection molded at an angle. Furthermore, the optical guide light column 7 connected to the LED bead 30 is also angled to guide the vertically emitted light from the LED bead 30 obliquely through the optical guide light column 7, allowing more light to be transmitted from the optical guide light column 7 to the optical fiber. This can be used in conjunction with... Figure 10 To further explain, compared to Figure 10 The optical fiber is led out vertically at 90° from the light board. This invention reduces the shearing force at the root of the optical fiber by leading the optical fiber out at an angle and arranging it on the roller shutter. This avoids the shearing force from concentrating at the root of the optical fiber. This design can effectively reduce the probability of damage during use, and can also reduce waste and improve production efficiency in the production and assembly process.

[0032] And besides like Figure 10 Besides the design shown where the optical fiber is led out perpendicular to the light panel, there is another arrangement that can also negatively impact the optical fiber and the roller blind. For details, please refer to [link / reference needed]. Figure 9 , Figure 9 The optical fibers in this design are led out from one side of the roller and laid on the roller shutter. This structural design has a greater impact on the overall structure. Because all the optical fibers are evenly distributed in the upper left corner of the unfolded roller shutter, this arrangement causes the front ends of all the optical fibers to concentrate in the upper left corner of the roller shutter. When the roller retracts the roller shutter, the left side of the roller shutter will gradually bulge out due to the presence of the optical fibers, while the right side of the roller shutter will sag accordingly. This can be further explained in detail as follows:

[0033] Due to the maximum bending angle of optical fibers, the fiber cannot be bent at a 90° angle at its root when vertically inserted into the roller blind. In the aforementioned layout, when the roller blind is retracted, the side with the fiber extending from it will become taut. This is the effect of the fiber being extended from one side of the roller. This causes the roller blind to not adhere to the roller and only to the fiber, resulting in the roller blind being taut and pulling on the fiber. On the other side of the roller, where no fiber is extended, the roller blind is suspended and unable to bear the load during retraction because there is no fiber between the roller and the roller. Therefore, the roller blind needs to be evenly stressed during retraction; otherwise, the roller will not retract smoothly, and the blind may deform, wrinkle, or tear. The reason for this situation is the fiber encroaching on the original fabric space and the assembly space of the aluminum rod 1.

[0034] Therefore, this utility model, through its inclined guide and lead-out structure design, enables the optical fiber to be led out from one side of the roller and laid on the entire roller blind fabric, effectively solving the above-mentioned problems while protecting the fragile connection points at the root of the optical fiber, thereby increasing its service life.

[0035] In addition, to ensure the accurate assembly of the guide cable sleeve 4, the cable outlet hole 21 of the aluminum alloy heat dissipation auxiliary tube 2 and the guide cable sleeve 4 are also designed with a foolproof assembly design. Specifically, each cable outlet hole 21 on the aluminum alloy heat dissipation auxiliary tube 2 is designed with a locking groove 210, and the guide cable sleeve 4 is formed with a positioning rib 40.

[0036] Furthermore, regarding the aluminum alloy heat dissipation auxiliary inner tube 2 of this utility model, compared with the existing split aluminum alloy heat dissipation auxiliary inner tube, the aluminum alloy heat dissipation auxiliary inner tube 2 of this utility model is integrally formed, and the PCB light board 3 can be directly inserted for assembly. While reducing the number of parts, it is also easier to install the PCB light board, and the assembly of the PCB light board 3 is more stable.

[0037] Looking again Figure 7 It can be seen that the LED beads 30 on the two sides of the PCB light board 3 are staggered. This design reduces the overheating problem during operation to a certain extent. If the positions of the two LED beads 30 on the upper and lower sides overlap at the same position, the heat generated will affect each other. The staggered arrangement reduces the impact and can also effectively dissipate heat with the thermal conductivity of the aluminum rod 1, thereby increasing the service life of this utility model and avoiding the LED beads 30 from being damaged due to excessive temperature during long-term use of the PCB light board 3.

[0038] This utility model has a reasonable structure and can be modularly produced and assembled, which facilitates subsequent vehicle assembly after assembly and is practical.

[0039] 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 within the protection scope of this utility model.

Claims

1. A light source structure for a car sunroof roller blind, comprising an aluminum rod (1), an aluminum alloy heat dissipation auxiliary inner tube (2), a PCB lamp board (3), a guide wire sheath (4), a force-guiding end plug (5), a conductive slip ring (6), and an optical guide light output column (7), characterized in that, The aluminum alloy heat dissipation auxiliary tube (2) has a through-type snap-fit ​​groove (20) in the axial direction and two rows of wiring holes (21) in the radial direction; the PCB lamp board (3) is a lamp board with several LED beads (30), IC chips and resistors soldered on both sides, and the PCB lamp board (3) is also designed with a PCB assembly (31); the conductive slip ring (6) is equipped with a force-guiding end plug (5), and the conductive slip ring (6) is built into the force-guiding end plug (5); the PCB lamp board (3) is embedded in the snap-fit ​​groove (20) of the aluminum alloy heat dissipation auxiliary tube (2); the PCB lamp board (3) is connected to the conductive slip ring (6) with the force-guiding end plug (5) through the PCB assembly (31); the aluminum rod (1) is fitted on the connecting Outside the aluminum alloy heat dissipation auxiliary tube (2) of the guide end plug (5); each of the LED beads (30) is equipped with a guide wire sleeve (4), an optical guide light column (7) and several optical fibers. The guide wire sleeve (4) is installed in the wire outlet hole (21), and one end of the optical fiber is optically connected to the LED bead (30) through the optical guide light column (7) and then led out in the guide wire sleeve (4) and laid on the roller shutter. The opening where the wire outlet hole (21) connects with the guide wire sleeve (4) is designed with a corresponding bevel. The guide wire sleeve (4) is correspondingly inclined and installed in the wire outlet hole (21). The angle between the central axis of the guide wire sleeve (4) and the PCB lamp board (3) is between 10° and 85°.

2. The light source structure for an automotive sunroof roller blind according to claim 1, characterized in that, The aluminum rod (1) has a through hole (10) that is positioned opposite to the outlet hole (21) for the optical fiber to be led out.

3. The light source structure for an automotive sunroof roller blind according to claim 1, characterized in that, The aluminum rod (1) is equipped with an unfoldable or retractable roller blind, and the other end of the roller blind is fixed to the movable rod of the original sunroof.

4. The light source structure for an automotive sunroof roller blind according to claim 1, characterized in that, The aluminum alloy heat dissipation auxiliary inner tube (2) and the force guide end plug (5) are both formed with positioning reinforcing ribs (99), while the aluminum rod (1) is designed with a positioning groove (11). The aluminum alloy heat dissipation auxiliary inner tube (2), the force guide end plug (5) and the aluminum rod (1) are assembled together to prevent mistake by the interlocking of the positioning reinforcing ribs (99) and the positioning groove (11).

5. The light source structure for an automotive sunroof roller blind according to claim 1, characterized in that, Each cable outlet hole (21) on the aluminum alloy heat dissipation auxiliary tube (2) is designed with a locking groove (210), and the guide cable outlet sleeve (4) is formed with a positioning rib (40). The guide cable outlet sleeve (4) is assembled on the aluminum alloy heat dissipation auxiliary tube (2) by the cooperation of the locking groove (210) and the positioning rib (40) to prevent mistaken assembly.

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