Plastic light-emitting interior and exterior trim part structure of automobile
By using a combination of semi-transparent shells, PC diaphragms and flexible FPC light panels or light strips in automotive interior and exterior trims, the problem of large and thick structures of traditional luminous interior and exterior trims is solved, and a lightweight, colorful and durable luminous effect is achieved to adapt to complex styling designs.
Patent Information
- Application Number
- CN202422631745.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The structures of existing automotive luminous interior and exterior trims are large and thick, resulting in long development cycles and high costs. In addition, the traditional PCB light board design is limited to flat light emission and cannot meet the needs of complex styling.
A combined structure of a semi-transparent shell, PC diaphragm, diffusion film and flexible FPC light board or light strip is adopted, and a light-emitting assembly is formed through high-pressure forming and injection molding to achieve the integration of flexible light-emitting sub-assemblies, adapt to complex shapes and reduce weight and thickness.
It shortens the parts development cycle and R&D costs, reduces the number of molds, achieves a variety of colors and luminous effects, and has a light, thin and durable structure, adapts to complex styling designs, and has waterproof and dustproof properties.
Smart Images
Figure CN223331569U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile interior and exterior decoration parts, and relates to an automobile plastic luminous interior and exterior decoration part structure. Background Art
[0002] With the rapid development of the automotive industry, the sense of technology and intelligence in vehicles has been greatly enhanced, giving rise to design concepts and development directions that reflect this sense of intelligence and technology. In line with the trend of intelligent development in the automotive industry, a large number of illuminated interior and exterior trims have emerged, such as illuminated bumpers, illuminated door sills, and illuminated cover panels. However, existing illuminated interior and exterior trims in automobiles generally use a PCB light box structure (case, diffuser, PCB light board, bottom cover). The overall structure is large and thick, and the redesign and development of component shape and structure are required, resulting in long development cycles and high costs. Summary of the Invention
[0003] In order to solve the above technical problems, the purpose of the present utility model is to provide a luminous interior and exterior trim structure of automobile plastics, which can use the original interior and exterior trim structure data of the main engine manufacturer, make the plastic parts shine without changing the original structural state, and greatly shorten the development cycle of parts and R&D and manufacturing costs.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A plastic luminous interior and exterior trim structure for an automobile comprises a semi-transparent shell, a PC diaphragm, a diffusion film, a flexible FPC light board or a flexible FPC light strip; wherein the PC diaphragm is a structure that imitates the interior and exterior trim structure; the diffusion film is adhered to the flexible FPC light board or the flexible FPC light strip, and together with the flexible FPC light board or the flexible FPC light strip, forms a flexible luminous sub-assembly, the LED lamp beads of the flexible luminous sub-assembly are arranged on the front of the flexible FPC light board or the flexible FPC light strip, and the back of the flexible luminous sub-assembly is adhered to the PC diaphragm, forming a luminous assembly; after the semi-transparent shell and the luminous assembly are integrally injection-molded, the luminous assembly is encapsulated and arranged on the front of the luminous assembly, forming a luminous interior and exterior trim.
[0006] As a preferred embodiment of the present invention, the PC diaphragm is pressed into a structure that imitates the structure of the interior and exterior trims by high-pressure forming.
[0007] As a preferred embodiment of the present invention, the diffusion film is used to perform light uniformity treatment on the light emitted by the LED lamp beads on the flexible FPC lamp board or the flexible FPC lamp strip.
[0008] As a preferred embodiment of the present invention, the thickness of the diffusion film is 0.2 mm, the thickness of the flexible FPC light board or the flexible FPC light strip is 1.2 mm, and the thickness of the PC diaphragm is 0.375 mm.
[0009] Advantages and beneficial effects of the utility model:
[0010] (1) The luminous interior and exterior trim structure provided by the present invention can use the original interior and exterior trim structure data of the main engine manufacturer, making the plastic parts illuminate without changing the original structure, and by controlling the LED lamp beads, it can change a variety of colors and luminous effects (such as flashing, breathing light, constant light, gradient, etc.), greatly shortening the development cycle of parts and the R&D and manufacturing costs.
[0011] (2) Compared with the traditional PCB light board plus shell lighting form, the luminous interior and exterior decoration structure provided by the utility model greatly reduces the weight and thickness of the interior and exterior decoration parts, and the number of molds and parts assembly in the production process is also greatly reduced, further reducing production time and cost.
[0012] (3) The luminous interior and exterior trim structure provided by the present invention makes full use of the flexible characteristics of the PC diaphragm, which can make a luminous assembly of any structural shape (the luminous assembly can be turned into a curved surface or three-dimensional structure of any shape), and then is integrally injection-molded with plastic parts to form an assembleable luminous interior and exterior trim, thereby solving the limitations of the 3D design of parts (the traditional PCB board can only emit light in a flat surface).
[0013] (4) The utility model uses injection molding plastic to encapsulate the entire flexible FPC light board or flexible FPC light strip, and the integrated parts structure can also achieve waterproof and dustproof levels. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0015] Figure 1 This is a schematic diagram of the structure of the automotive plastic luminous interior and exterior trim of the present invention.
[0016] Reference numerals: translucent shell 1 , diffusion membrane 2 , flexible FPC light board or flexible FPC light strip 3 , PC diaphragm 4 . DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0018] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0019] like Figure 1 As shown, the present embodiment provides a plastic luminous interior and exterior trim structure for an automobile, comprising a semi-transparent shell 1, a PC (polycarbonate) diaphragm 4, a diffusion film 2, and a flexible FPC light board or a flexible FPC light strip 3; wherein, the PC diaphragm is a structure that imitates the structure of the interior and exterior trim; the diffusion film is adhered to the flexible FPC light board or the flexible FPC light strip, and together with the flexible FPC light board or the flexible FPC light strip, forms a flexible luminous sub-assembly, and the LED lamp beads of the flexible luminous sub-assembly are arranged on the front of the flexible FPC light board or the flexible FPC light strip; the back of the flexible luminous sub-assembly is adhered to the PC diaphragm to form a luminous assembly; after the semi-transparent shell and the luminous assembly are integrally injection-molded, the luminous assembly is encapsulated and arranged on the front of the luminous assembly to form luminous interior and exterior trim.
[0020] Furthermore, in this embodiment, the PC diaphragm is pressed into a structure that imitates the structure of the interior and exterior trim by high-pressure forming; the diffusion film is used to uniformly treat the light emitted by the LED lamp beads on the flexible FPC light board or the flexible FPC light strip.
[0021] Furthermore, in this embodiment, the thickness of the diffusion film is 0.2 mm, the thickness of the flexible FPC light board or the flexible FPC light strip is 1.2 mm, and the thickness of the PC film is 0.375 mm.
[0022] In the present invention, the specific manufacturing method of the automotive plastic luminous interior and exterior trim structure is as follows: a diffusion film 2 is pasted on a flexible FPC light board or a flexible FPC light strip 3 (constituting a flexible luminous sub-assembly), and then bonded together on a PC film 4; after bonding, the bonded luminous assembly is placed together in an injection molding machine for injection molding together with the injection molding material to form a surface semi-transparent shell 1; the manufacturing process is characterized in that the PC film 4 is used as a base material to support the flexible FPC light board or flexible FPC light strip 3, and the excellent injection molding properties of the PC film are utilized to perfectly integrate the injection molded PC or ABS injection molding material with the PC film, and the flexible FPC light board or flexible FPC light strip is perfectly encapsulated in the injection molding material to form an integral part, and the PC film has flexible characteristics and can be formed into any 3D shape (using high-pressure molding). The formed PC film can be directly bonded to the flexible FPC light board or flexible FPC light strip, so that a luminous assembly of any structural shape can be made, and then an integral injection molding is performed to form an assembleable luminous interior and exterior trim structure, which can be installed on the vehicle for use.
[0023] In this utility model, the choice of flexible FPC light board or flexible FPC light strip should be based on the usage scenario; among them, the flexible FPC light board is suitable for design areas with larger space and curved surface shape. If you want to make the plastic parts in this area emit light over a large area, you can use a flexible FPC light board as the light-emitting layer. The flexible FPC light board is not constrained by the angle space and can be bent according to the shape angle. It is also thin and can be used in small areas with limited space. The flexible FPC light strip can be used for lighting smaller plastic parts. The flexible FPC light strip can be made according to the area and shape of the light-emitting area, can be bent according to the shape angle, and can be made into any length of light strip.
[0024] The above are specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.
Claims
1. A plastic luminous interior and exterior trim structure for automobiles, characterized in that: It includes a semi-transparent shell, a PC diaphragm, a diffusion film, a flexible FPC light board or a flexible FPC light strip; wherein, the PC diaphragm is a structure that imitates the structure of the interior and exterior trim; the diffusion film is pasted on the flexible FPC light board or the flexible FPC light strip, and constitutes a flexible light-emitting sub-assembly with the flexible FPC light board or the flexible FPC light strip, the LED lamp beads of the flexible light-emitting sub-assembly are arranged on the front of the flexible FPC light board or the flexible FPC light strip, and the back of the flexible light-emitting sub-assembly is adhered to the PC diaphragm to constitute a light-emitting assembly; after the semi-transparent shell and the light-emitting assembly are integrally injection-molded, the light-emitting assembly is encapsulated and arranged on the front of the light-emitting assembly to form a light-emitting interior and exterior trim.
2. The automotive plastic luminous interior and exterior trim structure according to claim 1, characterized in that: The PC diaphragm is pressed into a structure that conforms to the shape of the interior and exterior trim structures through high-pressure forming.
3. The automotive plastic luminous interior and exterior trim structure according to claim 1, characterized in that: The diffusion film is used to perform light uniformity treatment on the light emitted by the LED lamp beads on the flexible FPC lamp board or the flexible FPC lamp strip.
4. The automotive plastic luminous interior and exterior trim structure according to claim 1, characterized in that: The thickness of the diffusion film is 0.2 mm, the thickness of the flexible FPC light board or the flexible FPC light strip is 1.2 mm, and the thickness of the PC diaphragm is 0.375 mm.