A light-proof and light-proof automobile luminous exterior trim

Abstract

The present invention relates to an automobile luminous exterior part that is opaque and does not leak light, comprising a transparent material, a first PVD metal coating and a second PVD metal coating, wherein the first PVD metal coating and the second PVD metal coating are sequentially arranged on the back of the transparent material, a first protective layer is arranged between the first PVD metal coating and the second PVD metal coating, and the first PVD metal coating, the first protective layer and the second PVD metal coating are removed according to a pattern to form a light-transmitting area. The present invention has the advantages of increasing the selection range of coating materials, achieving the purpose of opacity, eliminating light leakage, reducing process difficulty, reducing coating thickness, and reducing costs.

Description

Technical Field

[0001] The invention relates to the technical field of automobile luminous exterior decoration parts, and in particular to an automobile luminous exterior decoration part which is opaque and does not leak light. Background Art

[0002] With the development of automobile intelligence and electrification, automobile exterior accessories must have a silver-plated decorative appearance, be opaque and leak-proof (no pinholes) under a strong light source on the back, and have a silver-plated effect on the back that can be removed by laser engraving to achieve pattern luminescence. To achieve this effect, this process selects a single-layer metal plating. When the plating thickness is small, defects of light leakage and light transmission will occur. When the metal plating thickness increases, although the defects of light leakage and light transmission can be solved, it will greatly increase the production cost and also increase the difficulty of the process. In order to solve this problem, it is very necessary to design a new exterior accessory structure. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a light-proof and light-proof automotive luminous exterior trim, which has the advantages of increasing the selection range of coating materials, achieving the purpose of light-proofness, eliminating light leakage, reducing process difficulty, reducing coating thickness, and reducing costs.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to provide a light-proof and light-proof automotive luminous exterior trim, comprising a transparent material, a first PVD metal coating and a second PVD metal coating, wherein the first PVD metal coating and the second PVD metal coating are sequentially arranged on the back of the transparent material, a first protective layer is arranged between the first PVD metal coating and the second PVD metal coating, and the first PVD metal coating, the first protective layer and the second PVD metal coating are removed according to a pattern to form a light-transmitting area.

[0005] As a supplement to the present technical solution, the back side of the exterior trim needs to be close to the light source, and in order to avoid damaging the second PVD metal coating, a second protective layer is arranged on the back side of the second PVD metal coating.

[0006] When the transparent material itself is relatively soft and has poor adhesion, a transparent base layer needs to be arranged between the transparent material and the first PVD metal coating. The transparent base layer can facilitate the molding of the first PVD metal coating.

[0007] Whether a front protective layer is required on the front of the transparent material is determined based on the material of the transparent material. When acrylic is selected as the material of the transparent material, there is no need to add a front protective layer.

[0008] The transparent base layer itself is formed to improve the back adhesion of the transparent material, so the transparent base layer can be made of transparent paint or ink material, and can also be made of transparent dielectric film. The transparent dielectric film is arranged by PVD method using silicone oil, silicon dioxide, etc.

[0009] In order to form a silver-plated appearance effect on the back of the decorative part, the first PVD metal coating layer and the second PVD metal coating layer usually use aluminum, chromium, indium or tin as the metal coating material.

[0010] The first PVD metal coating layer and the second PVD metal coating layer are coated by evaporation coating, sputtering coating or ion coating.

[0011] Beneficial effects: The present invention relates to an automotive luminous exterior trim that is opaque and does not leak light. By providing a first PVD metal coating, a first transparent protective layer, and a second PVD metal coating, the light shielding effect on the inner side of the exterior trim is improved, while the defects of light transmission and light leakage are avoided. The first transparent protective layer is provided to isolate the first PVD metal coating and the second PVD metal coating to protect the first PVD metal coating from being damaged. The present invention has the advantages of increasing the selection range of coating materials, achieving the purpose of opacity, eliminating light leakage, reducing process difficulty, reducing coating thickness, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural view of the present invention.

[0013] Illustration: 1. Front protective layer, 2. Transparent material, 3. Transparent base layer, 4. First PVD metal coating, 5. First transparent protective layer, 6. Second PVD metal coating, 7. Second transparent protective layer, 8. Translucent area. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0015] Originally, when producing automotive luminous exterior trims, it was necessary to arrange a very thick metal coating on the back of the exterior trim to solve the technical problems of light transmittance and light leakage. Exterior trims with this structure will greatly increase production costs due to the very thick coating.

[0016] like Figure 1As shown, in the present technical solution, a first PVD metal coating 4 and a second PVD metal coating 6 are provided. This is because the pinholes existing in the first PVD metal coating 4 itself will cause light leakage and light transmission. By adding the second PVD metal coating 6 at the rear end of the first PVD metal coating 4, the second PVD metal coating 6 can cover the pinholes of the first PVD metal coating 4, and the pinholes of the two will not overlap, thereby effectively avoiding the problems of light leakage and light transmission. At the same time, a first transparent protective layer 5 is provided between the two to achieve the purpose of solving the technical problems of light transmission and light leakage. On the other hand, the first transparent protective layer 5 can significantly enhance the adhesion of the second PVD metal coating 6, and can prevent the first PVD metal coating 4 from being damaged by the second PVD metal coating 6, while reducing the overall thickness of the coating, greatly reducing production costs and process difficulty.

[0017] The back side of the decorative component is close to a strong light source. In order to ensure that the second PVD metal coating 6 is not damaged, a second transparent protective layer 7 is provided on the back side of the second PVD metal coating 6 .

[0018] When the decorative part is coated, the first PVD metal coating 4, the first transparent protective layer 5, the second PVD metal coating and the second transparent protective layer 7 are completed, and then a removal process is performed to hollow out the pre-designed pattern to expose the pattern area and form a light-transmitting area 8.

[0019] When the transparent material 2 is made of a soft material with poor coating adhesion, a transparent base layer 3 needs to be provided on the back of the transparent material 2. The transparent base layer 3 can increase the coating adhesion and facilitate the coating operation.

[0020] In order to protect the transparent material 2 and improve the aesthetics of the decorative piece, a front protection layer 1 is provided on the front end surface of the transparent material 2 .

[0021] The following is a specific implementation of this technical solution:

[0022] The front protective layer 1 can be selected according to the material of the transparent material 2 to select whether the front protective layer 1 is needed. For example, when the transparent material 2 is PMMA, the front protective layer 1 can be selected not to be needed. The first PVD metal coating 4 is a metal with an electroplated silver appearance, such as aluminum, chromium, indium, tin, etc. The PVD method can be any coating method such as evaporation coating, sputtering coating or ion coating; the first transparent protective layer 5 can be a transparent medium film realized by a light-transmitting PVD method, such as silicone oil, silicon dioxide, etc., or a transparent paint realized by a light-transmitting spraying method, or a printing method. The second PVD metal coating 6 is a metal with an electroplated silver appearance, such as aluminum, chromium, indium, tin, etc., which can be the same as the metal of the first PVD metal coating 4 or different. The PVD method can be any coating method such as evaporation coating, sputtering coating or ion plating; the second transparent protective layer 7 can be a transparent medium film realized by a light-transmitting PVD method, such as silicone oil, silicon dioxide, etc., or a transparent paint realized by a light-transmitting spraying method, or a transparent ink realized by printing. If the use conditions are not harsh, this layer can also be cancelled.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner without departing from the scope defined by the spirit of the present invention.

Claims

1. A light-proof and light-proof automotive exterior trim, characterized in that: The invention comprises a transparent material (2), a first PVD metal coating (4) and a second PVD metal coating (6); the first PVD metal coating (4) and the second PVD metal coating (6) are arranged in sequence on the back of the transparent material (2); a first protective layer (5) is arranged between the first PVD metal coating (4) and the second PVD metal coating (6); the first PVD metal coating (4), the first protective layer (5) and the second PVD metal coating (6) are removed according to a pattern to form a light-transmitting area (8); a second protective layer (7) is arranged on the back of the second PVD metal coating (6); a transparent primer layer (3) is arranged between the transparent material (2) and the first PVD metal coating (4); a transparent primer layer (3) is arranged between the transparent material (2) and the first PVD metal coating (4); a front protective layer (1) is arranged on the front of the transparent material (2); and a transparent primer layer (3) is arranged between the transparent material (2) and the first PVD metal coating (4).

2. The light-proof and light-proof automotive luminous exterior decoration according to claim 1, characterized in that: The transparent base layer (3) is made of transparent paint or ink material or transparent medium film.

3. A light-proof and light-proof automotive luminous exterior trim according to any one of claims 1 to 2, characterized in that: The first PVD metal coating layer (4) and the second PVD metal coating layer (6) are made of aluminum, chromium, indium or tin as metal coating materials.

4. A light-proof and light-proof automotive luminous exterior trim according to any one of claims 1 to 2, characterized in that: The first PVD metal coating (4) and the second PVD metal coating (6) are coated by evaporation coating, sputtering coating or ion coating.

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