Automobile light-emitting threshold exterior decorative lamp mask
By using two-color injection molding and surface treatment technology, the problems of light leakage and light transmission in luminous decorative parts have been solved, simplifying mold design, reducing costs, and improving surface hardness to meet appearance requirements.
Patent Information
- Application Number
- CN202422901888.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing laser engraving process for luminous decorative parts has defects such as light leakage and light transmission, and requires two sets of molds and matching parts, which increases the difficulty and cost of the process.
The lampshade body and mounting frame are integrally molded using dual-color injection molding technology. The inner side is vacuum-plated with aluminum and the light-transmitting area is laser-engraved, while the outer side is chrome-plated and hardened with a coating, reducing the number of molds and increasing surface hardness.
It achieves a light-transmitting effect without light leakage, simplifies mold design, reduces production costs, and improves surface hardness and appearance.
Smart Images
Figure CN223460312U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automotive interior parts, and particularly relates to a car light-emitting door sill exterior trim lamp cover. BACKGROUND
[0002] With the increasing popularity of new energy vehicles, improving the personalization, intelligence, ritual sense and human-computer interaction of exterior trim parts has become the top priority in new vehicle model research and development, so light-emitting exterior trim parts are increasingly used on vehicles, such as light-emitting trim strips, light-emitting trim plates, light-emitting grilles and light-emitting emblems.
[0003] The current implementation scheme of light-emitting trim parts mainly uses transparent materials for injection molding, surface paint spraying, and then removes the paint in the area requiring light transmission using a laser engraving process to allow internal light to pass through, thereby achieving the function of light-emitting trim strips. However, when the thickness of the paint layer in the current scheme is small, there are defects of light leakage and light transmission, and when the thickness of the paint layer is increased, although the defects of light leakage and light transmission are solved, the difficulty of the laser engraving process is also increased, in addition, the lamp cover needs to be made of PC material for injection molding as the lamp cover body and ABS material for injection molding as the lamp cover mounting frame, which requires the development of two sets of molds and also involves the matching of parts. SUMMARY
[0004] In view of the above problems, the utility model aims to provide a car light-emitting door sill exterior trim lamp cover, which adopts a lamp cover made of double-color injection molding, is integrally formed to reduce the number of molds, has an internal surface vacuum-coated with aluminum to meet the appearance silver color requirement, and has a hard coating on the outer side of the lamp cover to improve the surface hardness, thereby overcoming the shortcomings of the prior art.
[0005] The utility model provides a car light-emitting door sill exterior trim lamp cover, which comprises a lamp cover body, a lamp cover mounting frame and a lamp shell, the lamp cover body and the lamp cover mounting frame are integrally formed, the lamp shell is located on the back of the lamp cover body and is fixedly connected with the lamp cover body by vibration friction welding, the material of the lamp cover body is PC polycarbonate, the material of the lamp cover mounting frame is ABS resin, the PC polycarbonate and the ABS resin are integrally formed by double-color injection molding, the inner side of the lamp cover body is vacuum-coated with aluminum to form an aluminum coating layer, the aluminum coating layer is laser-engraved with a light transmission area, and the outer side of the lamp cover body is chromium-plated to form a chromium coating layer.
[0006] As a preferred embodiment of the utility model, a hard coating layer is arranged on the outer surface of the lamp cover body, the hard coating layer is made of organic silicon paint, and the hard coating layer is located on the outer side of the aluminum coating layer and the chromium coating layer.
[0007] The utility model has the following advantages: the lamp cover body and the lamp cover mounting frame are integrally formed by double-color injection molding to reduce the number of molds, the internal surface is vacuum-coated with aluminum to meet the appearance silver color requirement, and the outer side of the lamp cover is treated with a hard coating to improve the surface hardness. BRIEF DESCRIPTION OF DRAWINGS
[0008] Other objects and advantages of the present application will become more apparent upon reading the following detailed description and upon reference to the accompanying drawings in which:
[0009] Fig. 1 It is a whole structure schematic view of the embodiment.
[0010] Fig. 2 It is a whole structure front view of the embodiment.
[0011] Fig. 3 It is a sectional view of the embodiment.
[0012] The reference signs therein include: lampshade main body 1, lampshade mounting frame 2, lamp shell 3, aluminized layer 4, chrome plating layer 5. DETAILED DESCRIPTION
[0013] Referring to Figs. 1-3 As shown in the figure, the automobile light-emitting door sill outer trim lamp cover provided by the embodiment includes: a lampshade main body 1, a lampshade mounting frame 2, and a lamp shell 3, the lampshade main body 1 and the lampshade mounting frame 2 are integrally formed, the lamp shell 3 is located at the back of the lampshade main body 1 and is fixedly connected with the lampshade main body 1 by vibration friction welding, the material of the lampshade main body 1 is PC polycarbonate, the material of the lampshade mounting frame 2 is ABS resin, the PC polycarbonate and the ABS resin are integrally formed by two-color injection molding, the inner side of the lampshade main body 1 is vacuum aluminized to form an aluminized layer 4, the aluminized layer 4 is engraved with a light-transmitting area, and the outer side of the lampshade main body 1 is chrome plated to form a chrome plating layer 5. The outer surface of the lampshade main body 1 is provided with a hard coating layer, the hard coating layer is an organic silicon coating, and the hard coating layer is located outside the aluminized layer 4 and the chrome plating layer 5.
[0014] Working principle: the lampshade main body 1 and the lampshade mounting frame 2 are integrally formed by two-color injection molding, the number of molds is reduced, the inner side surface of the lampshade main body 1 is vacuum aluminized + engraved to form an aluminized layer 4 with a light-transmitting area, the appearance silver color requirement is met, the outer side surface is chrome plated, the outermost side is treated by a hard coating layer to improve the surface hardness, then, the sealed lamp shell 3 is fixedly connected by vibration friction welding.
[0015] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An automotive lighted rocker panel trim cover characterized by, The utility model relates to a lampshade, lampshade mounting frame and lamp shell are integrally formed, the lamp shell is located at the back of lampshade body and is fixedly connected with lampshade body through vibration friction welding, the material of lampshade body is PC polycarbonate, the material of lampshade mounting frame is ABS resin, PC polycarbonate and ABS resin are integrally formed through two -color injection molding, the inside of lampshade body is vacuum plated with aluminium and forms aluminium plating layer, the transparent region is engraved on aluminium plating layer, the outside of lampshade body is plated with chromium and forms chromium plating layer. The outer surface of the lampshade body is provided with a hard coating, which is an organic silicon coating. The hard coating is located outside the aluminum plating layer and the chromium plating layer.
2. An automotive lighted rocker panel trim cover as defined in claim 1 wherein,