Car lamp decorating part, car lamp and car
By setting a laser carved pattern and a transparent dielectric layer on the surface of the metal layer of the headlight decorative parts, the problems of single pattern and strong plastic feel of the headlight decorative parts are solved, and the colorful effect and exquisite feeling are improved under different lighting conditions are achieved.
Patent Information
- Application Number
- CN202421651715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing headlight decorative parts have single patterns and color, lacking aesthetic and exquisite feel, and have a strong plastic feel.
The radium engraving pattern on the surface of the metal layer is used. The radium engraving pattern is composed of a transparent dielectric layer. The thickness of the transparent dielectric layer is smaller than the thickness of the metal layer. A texture is set on the radium engraving pattern, and laser engraving is used to form a transparent dielectric layer by using picosecond or femtosecond lasers.
A color appears under normal light and a colorful color under strong light, which enhances the decorative effect, eliminates the plastic feeling, and enhances the sense of refinement.
Smart Images
Figure CN223090470U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of vehicle lamps, and particularly to a lamp decoration, a vehicle lamp, and a vehicle. Background Art
[0002] Automobile lamps are the eyes of an automobile and are key important components. In addition to meeting the requirements of lamp regulations, they also need to show a certain aesthetic appearance. With the continuous improvement of consumers' appreciation level, the requirements for the aesthetic appearance and delicacy of automobile lamps are getting higher and higher.
[0003] Existing lamp decorations are generally single-color or two-color injection molded with polycarbonate (PC) material, and surface treatment processes such as coating, spraying, hot stamping, and laser engraving are carried out on the surface of the polycarbonate (PC) material to form a display pattern. However, the patterns of existing lamp decorations have a single color and lack aesthetic delicacy. For example, the patterns of lamp decorations formed by spraying, two-color injection molding, and single coating can only present a single color; the two-color injection molded lamp decorations have a strong plastic feeling and lack delicacy. Utility Model Content
[0004] To solve the above technical problems, the embodiments of this application provide a lamp decoration, a vehicle lamp, and a vehicle, so that the pattern on the lamp decoration presents one color under normal light and presents a dazzling color under strong light irradiation, greatly improving the decoration effect, eliminating the plastic feeling of the lamp decoration, and improving the delicacy of the surface of the lamp decoration.
[0005] To achieve the above object, the embodiments of this application provide the following technical solutions:
[0006] A lamp decoration, comprising:
[0007] A metal layer, on the surface of which there is a laser engraved pattern, the laser engraved pattern has a texture, the laser engraved pattern is composed of a transparent dielectric layer, and the thickness of the transparent dielectric layer is less than the thickness of the metal layer.
[0008] Optionally, the transparent dielectric layer includes oxides and / or nitrides of the metal in the metal layer.
[0009] Optionally, the metal layer is a stainless steel metal layer.
[0010] Optionally, the lamp decoration further includes a substrate, the metal layer is located on the substrate, and the laser engraved pattern is located on the surface of the metal layer facing away from the substrate;
[0011] The substrate is a thermoplastic polymer material ABS layer or an engineering plastic alloy material PC + ABS layer;
[0012] The metal layer is an electroplated metal layer, and the electroplated metal layer includes a nickel metal layer, a copper metal layer, and a chromium metal layer arranged in a direction away from the substrate. The transparent dielectric layer includes at least one of oxides and / or nitrides of nickel metal, copper metal, and chromium metal.
[0013] Optionally, the thickness of the transparent dielectric layer is greater than or equal to the thickness of the chromium metal layer and less than the thickness of the stack formed by the copper metal layer and the chromium metal layer. The transparent dielectric layer includes oxides and / or nitrides of chromium metal, and oxides and / or nitrides of copper metal.
[0014] Optionally, the pitch of the texture on the laser-engraved pattern is less than or equal to 0.1 mm.
[0015] Optionally, the vehicle lamp decorative part further includes a transparent protective layer covering the surface of the metal layer with the laser-engraved pattern.
[0016] Optionally, the transparent protective layer is a transparent varnish layer or a silicone oil layer.
[0017] A vehicle lamp includes a light source and a vehicle lamp decorative part. The light source is used to emit light, and the vehicle lamp decorative part is the vehicle lamp decorative part described in any one of the above.
[0018] A vehicle includes the above vehicle lamp.
[0019] Compared with the prior art, the above technical solution has the following advantages:
[0020] The vehicle lamp decorative part provided by the embodiment of the present application includes a metal layer. The surface of the metal layer has a laser-engraved pattern, and the laser-engraved pattern has a texture. The laser-engraved pattern is composed of a transparent dielectric layer, and the thickness of the transparent dielectric layer is less than the thickness of the metal layer. With such a setting, when light is incident on the laser-engraved pattern, it will be reflected on the surface of the transparent dielectric layer, refracted into the transparent dielectric layer, and then reflected at the interface between the transparent dielectric layer and the metal layer, and refracted out of the transparent dielectric layer. Moreover, since the laser-engraved pattern has a texture, that is, the surface of the laser-engraved pattern is uneven, therefore, the light will also undergo diffuse reflection on the surface of the laser-engraved pattern. That is, the light emitted through the laser-engraved pattern is a superposition of various reflected lights and refracted lights. Under normal light, since the light is relatively weak, most of the light in the light emitted through the laser-engraved pattern is scattered, making the laser-engraved pattern present a single color; while under strong light irradiation, since the light is relatively sufficient, the light emitted through different regions of the laser-engraved pattern will retain different bands of light, making the laser-engraved pattern able to present a dazzling color, greatly improving the decorative effect; at the same time, the laser-engraved pattern is located on the metal layer, and the laser-engraved pattern has a texture, so that the plastic feeling of the vehicle lamp decorative part can be eliminated, and the delicacy of the surface of the vehicle lamp decorative part can be improved. Description of the Drawings
[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 Schematic cross-sectional structure diagram of a lamp decoration provided by an embodiment of the present application;
[0023] Figure 2 Schematic diagram of light transmission when light is incident on the surface of the laser-engraved pattern of a lamp decoration provided by an embodiment of the present application;
[0024] Figure 3 Schematic diagram showing that the laser-engraved pattern on a lamp decoration provided by an embodiment of the present application shows one color;
[0025] Figure 4 Schematic cross-sectional structure diagram of another lamp decoration provided by an embodiment of the present application;
[0026] Figure 5 Schematic cross-sectional structure diagram of yet another lamp decoration provided by an embodiment of the present application;
[0027] Figure 6 Schematic cross-sectional structure diagram of still another lamp decoration provided by an embodiment of the present application.
[0028] Reference numerals:
[0029] 10 - Metal layer; 11 - Surface of the metal layer; 101 - Nickel metal layer; 102 - Copper metal layer; 103 - Chromium metal layer; 20 - Laser-engraved pattern; 21 - Transparent dielectric layer; 30 - Substrate; 40 - Transparent protective layer. Detailed implementation manners
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0031] Many specific details are set forth in the following description in order to fully understand the present application, but the present application can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0032] As described in the background art section, the patterns of existing headlight decorative parts are single in color and lack a sense of beauty and delicacy.
[0033] In view of this, an embodiment of the present application provides a headlight decorative part. Figure 1 The cross-sectional structure schematic diagram of a headlight decorative part provided by an embodiment of the present application is shown. As Figure 1 shown, the headlight decorative part includes a metal layer 10. The surface 11 of the metal layer 10 has a laser-engraved pattern 20. The laser-engraved pattern 20 has a texture. The laser-engraved pattern 20 is composed of a transparent dielectric layer 21. The thickness of the transparent dielectric layer 21 is less than the thickness of the metal layer 10.
[0034] In the embodiment of the present application, the laser-engraved pattern 20 is located on the surface 11 of the metal layer 10, and the laser-engraved pattern 20 is composed of a transparent dielectric layer 21. The thickness of the transparent dielectric layer 21 is less than the thickness of the metal layer 10. That is to say, the transparent dielectric layer 21 that constitutes the laser-engraved pattern 20 will not penetrate the metal layer 10, but will form an interface with the metal layer 10.
[0035] With such a setting, as Figure 1 shown in the light ray schematic diagram, when light is incident on the laser-engraved pattern 20, it will be reflected on the surface of the transparent dielectric layer 21 and refracted into the transparent dielectric layer 21. Furthermore, it will also be reflected at the interface between the transparent dielectric layer 21 and the metal layer 10 and refracted out of the transparent dielectric layer 21. It can be understood that compared with the laser-engraved pattern on the existing headlight decorative part, which is usually presented by a groove that penetrates the metal layer, in the headlight decorative part provided by the embodiment of the present application, since the transparent dielectric layer 21 and the metal layer 10 form an interface, the light rays emerging from the laser-engraved pattern 20 increase.
[0036] Moreover, since the laser-engraved pattern 20 on the headlight decorative part provided by the embodiment of the present application has a texture, that is, the surface of the laser-engraved pattern 20 is uneven. Figure 2 The light ray transmission schematic diagram of light incident on the uneven surface of the laser-engraved pattern 20 is shown. It can be seen that when light is incident on the uneven surface of the laser-engraved pattern 20, diffuse reflection will also occur.
[0037] Therefore, when light is incident on the laser-engraved pattern 20 of the headlight decorative part provided by the embodiment of the present application, various superpositions of reflection and refraction will occur. Under normal brightness, since the light is relatively weak, most of the light rays in most wavelength bands in the light rays emerging from the laser-engraved pattern 20 are scattered, making the laser-engraved pattern 20 present a single color. For example, Figure 3The figure shows a schematic diagram of a laser-engraved pattern 20 on a lamp decoration provided by an embodiment of the present application showing one color; under strong light irradiation, since the light is relatively sufficient, the light emitted through different regions of the laser-engraved pattern 20 will retain light of different wavelength bands, enabling the laser-engraved pattern 20 to present a dazzling color, greatly enhancing the decorative effect.
[0038] Meanwhile, the laser-engraved pattern 20 on the lamp decoration provided by the embodiment of the present application is located on the metal layer 10, and the laser-engraved pattern 20 has textures, thereby being able to solve the problem that the lamp decoration has a strong plastic feeling and lacks a delicate feeling when using two-color injection molding, that is, eliminating the plastic feeling of the lamp decoration and improving the delicate feeling on the surface of the lamp decoration.
[0039] Specifically, the laser-engraved pattern 20 on the lamp decoration provided by the embodiment of the present application can be composed of a transparent dielectric layer 21 formed after the surface of the metal layer 10 is laser-engraved by a picosecond laser or a femtosecond laser. It can be understood that the corresponding laser-engraved pattern is set according to the pattern requirements. Then, the picosecond laser or the femtosecond laser performs laser engraving on the surface of the metal layer 10 according to the designed pattern, and part of the metal layer 10 is laser-ablated to form the transparent dielectric layer 21. Thus, the transparent dielectric layer 21 can constitute the laser-engraved pattern 20. Moreover, during the laser-engraving process, both the picosecond laser and the femtosecond laser can increase the engraving texture filling, so that the laser-engraved pattern 20 has textures.
[0040] It should be noted that since the laser energy emitted by the picosecond laser and the femtosecond laser is high enough, the laser engraving of part of the metal layer 10 by the picosecond laser and the femtosecond laser can form the transparent dielectric layer 21. The transparent dielectric layer 21 can include oxides and / or nitrides of the metal in the metal layer 10, etc., which reflect and refract light.
[0041] It should also be noted that in the embodiment of the present application, the fact that the laser-engraved pattern 20 is composed of the transparent dielectric layer 21 formed by laser-engraving part of the metal layer 10 by the picosecond laser or the femtosecond laser is only one implementation manner. The present application is not limited thereto. For example, other process means can also be used to ablate part of the metal layer 10 to form the transparent dielectric layer 21, and then constitute the laser-engraved pattern 20; for another example, part of the metal layer 10 can also be etched, and the transparent dielectric layer 21 is filled in the etching groove, and then textures are realized on the surface of the transparent dielectric layer 21, which can also constitute the laser-engraved pattern 20; for yet another example, the transparent dielectric layer 21 is directly formed on the surface 11 of the metal layer 10, and then textures are realized on the surface of the transparent dielectric layer 21, which can also constitute the laser-engraved pattern 20, depending on the specific situation.
[0042] In the embodiment of the present application, the metal layer 10 can be a single metal layer, an alloy metal layer, or a stack of multiple metal layers.
[0043] Optionally, as Figure 1 shown, the metal layer 10 may be a stainless-steel metal layer. As we know, stainless steel is mainly characterized by being stainless and corrosion-resistant. Stainless steel belongs to an alloy, with a chromium content of at least 10.5% and a maximum carbon content of no more than 1.2%. Therefore, when the stainless-steel metal layer serves as the metal layer 10 and is laser-engraved by the laser emitted by a picosecond laser or a femtosecond laser, a transparent dielectric layer including chromium compounds such as chromium oxide can be formed on the surface of the stainless-steel metal layer to constitute the laser-engraved pattern 20.
[0044] Another option is that, as Figure 4 shown, the metal layer 10 may be an electroplated metal layer, that is, a metal layer prepared by using the electroplating process. Since the electroplating process requires the preparation of the metal layer 10 on a substrate, the headlight decorative part provided in the embodiment of the present application may further include a substrate 30. The metal layer 10 is located on the substrate 30, and the laser-engraved pattern 20 is located on the surface of the metal layer 10 facing away from the substrate 30.
[0045] In this embodiment, the substrate 30 may be a thermoplastic polymer material ABS layer or an engineering plastic alloy material PC + ABS layer, so as to facilitate the preparation of the metal layer 10 on the substrate 30 by using the electroplating process.
[0046] In this embodiment, when preparing the metal layer 10 on the substrate 30 by using the electroplating process, it is required that the surface roughness of the substrate 30 is less than or equal to 0.8 μm.
[0047] In this embodiment, the electroplated metal layer (i.e., the metal layer 10) may include a nickel metal layer 101, a copper metal layer 102, and a chromium metal layer 103 arranged in a direction away from the substrate 30. Thus, after the laser emitted by a picosecond laser or a femtosecond laser engraves part of the electroplated metal layer, the transparent dielectric layer 21 constituting the laser-engraved pattern 20 may include oxides and / or nitrides of at least one of nickel metal, copper metal, and chromium metal.
[0048] Optionally, if the laser emitted by a picosecond laser or a femtosecond laser only engraves the chromium metal layer 103 in the electroplated metal layer (i.e., the metal layer 10), the transparent dielectric layer 21 constituting the laser-engraved pattern 20 may include oxides and / or nitrides of chromium metal. At this time, the thickness of the transparent dielectric layer 21 is less than the thickness of the chromium metal layer 103.
[0049] Another alternative is that if the laser emitted by the picosecond laser or femtosecond laser only performs laser engraving on the chromium metal layer 103 and copper metal layer 102 in the electroplated metal layer (i.e., metal layer 10), the transparent dielectric layer 21 constituting the laser engraving pattern 20 may include oxides and / or nitrides of chromium metal, and oxides and / or nitrides of copper metal layer. At this time, the thickness of the transparent dielectric layer 21 is greater than or equal to the thickness of the chromium metal layer 103 and less than the thickness of the laminate composed of the copper metal layer 102 and the chromium metal layer 103.
[0050] Another alternative is that if the laser emitted by the picosecond laser or femtosecond laser performs laser engraving on the chromium metal layer 103, copper metal layer 102, and nickel metal layer 101 in the electroplated metal layer (i.e., metal layer 10), but does not penetrate the electroplated metal layer (i.e., metal layer 10), the transparent dielectric layer 21 constituting the laser engraving pattern 20 may include oxides and / or nitrides of chromium metal, oxides and / or nitrides of copper metal layer, and oxides and / or nitrides of nickel metal layer. At this time, the thickness of the transparent dielectric layer 21 is greater than or equal to the thickness of the laminate composed of the copper metal layer 102 and the chromium metal layer 103 and less than the thickness of the electroplated metal layer (i.e., metal layer 10).
[0051] The inventor's experimental verification shows that when the thickness of the transparent dielectric layer 21 is greater than or equal to the thickness of the chromium metal layer 103 and less than the thickness of the laminate composed of the copper metal layer 102 and the chromium metal layer 103, and the transparent dielectric layer 21 can be oxides and / or nitrides of chromium metal, and oxides and / or nitrides of copper metal layer, the laser engraving pattern 20 on the lamp decoration is more colorful.
[0052] It should be noted that when using the laser emitted by the picosecond laser or femtosecond laser to perform the laser engraving process on the electroplated metal layer (i.e., metal layer 10), the laser engraving speed should be set to be greater than or equal to 1600 mm / s. This is because if the laser engraving speed is too slow, it is easy to cause the electroplated metal layer (i.e., metal layer 10) to overheat and bulge.
[0053] It should also be noted that in the preparation process of the existing lamp decoration, processes such as hot stamping and pad printing have requirements for the surface structure of the product. In this embodiment, the metal layer 10 is prepared by the electroplating process, and the transparent dielectric layer 21 is prepared by the laser engraving process to form the laser engraving pattern 20, and there are no special requirements for the workpiece. For example, workpieces with curved surfaces, protrusions, or arcs can all be realized, increasing the diversity of the lamp decoration.
[0054] In the embodiments of the present application, the spacing of the textures on the laser-engraved pattern 20 is preferably less than or equal to 0.1 mm. As known from the foregoing, since there are textures on the laser-engraved pattern 20, that is, the surface of the laser-engraved pattern 20 is uneven, light is diffusely reflected when it shines on the laser-engraved pattern 20. In this embodiment, the spacing of the textures on the laser-engraved pattern 20 is set to be less than or equal to 0.1 mm, so that the diffuse reflection effect of light is stronger, and the colorful effect of the laser-engraved pattern 20 under strong light irradiation is obvious.
[0055] In the embodiments of the present application, the textures on the laser-engraved pattern 20 can be in the form of slashes, or in various forms such as horizontal stripes. The present application does not limit this.
[0056] Based on any of the above embodiments, optionally, in some embodiments of the present application, as Figure 5 and Figure 6 shown, the vehicle lamp decorative part may further include a transparent protective layer 40 covering the surface of the metal layer 10 having the laser-engraved pattern 20 to protect the laser-engraved pattern 20.
[0057] Optionally, the transparent protective layer 40 can be a transparent varnish layer or a silicone oil layer.
[0058] Correspondingly, the embodiments of the present application further provide a vehicle lamp, including a light source and a vehicle lamp decorative part. Among them, the light source is used to emit light, and the vehicle lamp decorative part is the vehicle lamp decorative part provided in any of the above embodiments. Thus, when the vehicle lamp light source is turned off and under normal light, the laser-engraved pattern on the vehicle lamp decorative part shows one color, while when the vehicle lamp light source is turned on or irradiated by strong sunlight, the laser-engraved pattern on the vehicle lamp decorative part presents a colorful effect, greatly improving the decorative effect; moreover, the laser-engraved pattern is located on the metal layer, and there are textures on the laser-engraved pattern, which can also eliminate the plastic feeling of the vehicle lamp decorative part and improve the delicate feeling of the surface of the vehicle lamp decorative part.
[0059] The embodiments of the present application further provide a vehicle, including the vehicle lamp provided in the above embodiments.
[0060] Since the vehicle lamp decorative part in the vehicle lamp has been described in detail in the foregoing embodiments, it will not be elaborated here.
[0061] In this specification, each part is described in a combined manner of parallel and progressive. The key point of each part is to describe the differences from other parts. For the same or similar parts among each part, reference can be made to each other.
[0062] Regarding the above description of the disclosed embodiments, the features described in each embodiment in this specification can be replaced or combined with each other, enabling those skilled in the art to implement or use this application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to the embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lamp decoration, characterized in that, include: A metal layer, wherein a laser engraved pattern is provided on the surface of the metal layer, the laser engraved pattern has a texture, the laser engraved pattern is formed by a transparent medium layer, and the thickness of the transparent medium layer is less than the thickness of the metal layer; The transparent medium layer is formed by laser engraving a portion of the metal layer using a picosecond laser or a femtosecond laser, and the transparent medium layer includes oxides and / or nitrides of the metal in the metal layer; Alternatively, the transparent medium layer is filled in an etching groove formed by etching a portion of the metal layer.
2. The lamp decoration according to claim 1, characterized in that, The metal layer is a stainless steel metal layer.
3. The lamp decoration according to claim 1, characterized in that, The vehicle lamp decoration piece further comprises a substrate, the metal layer is located on the substrate, and the laser engraving pattern is located on a surface of the metal layer away from the substrate; The substrate is a thermoplastic polymer material ABS layer, or an engineering plastic alloy material PC+ABS layer; The metal layer is a water-electroplated metal layer, which includes a nickel metal layer, a copper metal layer and a chromium metal layer arranged in a direction away from the substrate, and the transparent medium layer includes an oxide and / or nitride of at least one of the nickel metal, copper metal and chromium metal.
4. The lamp decoration according to claim 3, wherein The thickness of the transparent medium layer is greater than or equal to the thickness of the chromium metal layer, and less than the thickness of the stack consisting of the copper metal layer and the chromium metal layer. The transparent medium layer includes oxide and / or nitride of chromium metal and oxide and / or nitride of copper metal.
5. The lamp decoration according to claim 1, characterized in that The spacing between the textures on the laser engraved pattern is less than or equal to 0.1 mm.
6. The lamp decoration according to any one of claims 1-5, characterized in that, The vehicle lamp decoration also includes a transparent protective layer covering the surface of the metal layer having the laser engraved pattern.
7. The lamp decoration according to claim 6, characterized in that, The transparent protective layer is a transparent varnish layer or a silicone oil layer.
8. A vehicle lamp, characterized in that, It comprises a light source and a headlight decoration, wherein the light source is used to emit light, and the headlight decoration is the headlight decoration according to any one of claims 1 to 7.
9. A vehicle, characterized in that, The vehicle lamp comprising the vehicle lamp as claimed in claim 8.