Fixing structure of double-layer double-color light guide plate

Abstract

The utility model belongs to the technical field of automobile lamps, and particularly relates to a fixing structure of a double-layer double-color light guide plate, which comprises a first double-color light guide plate, a second double-color light guide plate and a third double-color light guide plate, the first double-color light guide plate comprises a vertically arranged first transparent plate and a horizontally arranged light absorption black plate, and the first transparent plate is connected with the light absorption black plate; the second double-color light guide plate and the first double-color light guide plate are arranged in parallel, the second double-color light guide plate comprises a second transparent plate which is vertically arranged and an infrared-transmitting black plate which is horizontally arranged, and the second transparent plate is connected with the infrared-transmitting black plate; the light-absorbing black plate extends in the direction close to the second transparent plate to be connected with the infrared-transmitting black plate; the infrared-transmitting black plate is used for absorbing infrared light and welding with the light-absorbing black plate after being fused; according to the utility model, the light-absorbing black plate and the infrared-transmitting black plate are arranged, and the infrared-transmitting black plate is welded with the light-absorbing black plate after being melted by infrared rays, so that the connection of the double-layer light guide plate is realized.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to a fixing structure for a double-layer dual-color light guide plate. Background Technology

[0002] Currently, in the field of automotive lighting, the two light guide plates are mainly fixed by mechanical clips, screws / bolts, or ultrasonic welding. Ultrasonic welding uses high-frequency vibration to locally melt and fuse the contact surfaces of the two light guide plates, and after cooling, they are fixed as a whole.

[0003] During ultrasonic welding, defects such as weld slag caused by overflow can affect the aesthetics of the welded two-layer light guide plate. Furthermore, after the two-layer light guide plate is welded, it needs to undergo vibration and impact tests for vehicle lights. The fixation effect of the double-layer light guide plate obtained by ultrasonic welding is insufficient, which affects the subsequent reliability test of the vehicle lights. Utility Model Content

[0004] The purpose of this invention is to provide a fixing structure for a double-layer, dual-color light guide plate to solve the technical problems of appearance defects caused by ultrasonic welding affecting aesthetics and insufficient fixing effect affecting vehicle headlight testing. The invention achieves the goal of weakening the appearance defects caused by welding and improving the fixing effect by using a black infrared-transmitting plate at the welding joint of the light guide plate through laser welding of the two light guide plates.

[0005] To solve the above-mentioned technical problems, this utility model provides a fixing structure for a double-layer dual-color light guide plate, comprising:

[0006] A first dual-color light guide plate, comprising: a vertically arranged first transparent plate and a horizontally arranged light-absorbing black plate, wherein the first transparent plate is connected to the light-absorbing black plate;

[0007] The second dual-color light guide plate is arranged parallel to the first dual-color light guide plate. The second dual-color light guide plate includes: a vertically arranged second transparent plate and a horizontally arranged infrared-transmitting black plate. The second transparent plate is connected to the infrared-transmitting black plate.

[0008] The light-absorbing black plate extends along the direction close to the second transparent plate to connect with the infrared-transmitting black plate; the infrared-transmitting black plate is used to absorb infrared light and melt before being welded to the light-absorbing black plate.

[0009] Furthermore, two light-absorbing black plates are provided, which are respectively horizontally disposed at the top and bottom of the first transparent plate, and both light-absorbing black plates extend in a direction close to the second transparent plate.

[0010] Furthermore, two infrared-transmitting black plates are provided, and the two infrared-transmitting black plates are respectively horizontally disposed at the top of the second transparent plate, and both infrared-transmitting black plates extend in a direction away from the first transparent plate.

[0011] The two light-absorbing black plates are respectively connected to the two infrared-transmitting black plates.

[0012] Furthermore, the top of the first dual-color light guide plate and the second dual-color light guide plate are detachably provided with horizontal circuit boards, and multiple LED lights are provided on the circuit boards.

[0013] Furthermore, both the first transparent plate and the second transparent plate are provided with optical patterns, which are used to illuminate the optical patterns after absorbing the light from the LED lamp.

[0014] Furthermore, a two-color decorative ring is detachably connected to the side wall of the first two-color light guide plate, and the two-color decorative ring is connected to the first two-color light guide plate by a buckle.

[0015] The beneficial effects of this utility model are:

[0016] This invention incorporates a light-absorbing black plate and an infrared-transmitting black plate. The laser beam emitted by the laser emitter enters through the infrared-transmitting black plate, while the infrared beam in the laser beam can pass through the infrared-transmitting black plate, whereas the infrared beam cannot pass through the light-absorbing black plate. The infrared beam melts the infrared-transmitting black plate, thus welding it together with the light-absorbing black plate. The laser welding provides a better fixing effect, enabling the welded double-layer light guide plate to withstand vibrations and impacts from vehicle headlights. Furthermore, the welded area of ​​the double-layer light guide plate is black, which reduces appearance defects caused by welding overflow.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Fig. 1 This is a schematic diagram of the connection between the first and second dual-color light guide plates of this utility model;

[0020] Fig. 2This is a schematic diagram of the fixing structure of a double-layer dual-color light guide plate according to this utility model.

[0021] In the picture:

[0022] 1. First dual-color light guide plate; 11. First transparent plate; 12. Light-absorbing black plate; 2. Second dual-color light guide plate; 21. Second transparent plate; 22. Infrared-transmitting black plate; 3. Circuit board; 31. LED light; 4. Dual-color decorative ring; 41. Buckle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1:

[0025] like Figs. 1-2 As shown, a fixing structure for a double-layer dual-color light guide plate includes: a first dual-color light guide plate 1 and a second dual-color light guide plate 2. The second dual-color light guide plate 2 is arranged parallel to the first dual-color light guide plate 1. The second dual-color light guide plate 2 is connected to the first dual-color light guide plate 1 by welding the first dual-color light guide plate 1 and the second dual-color light guide plate 2 together. The welding of the two light guide plates can meet the assembly and manufacturing requirements. Compared with other connection methods, the welding method is more reliable and firm, and the appearance is exquisite.

[0026] The first dual-color light guide plate 1 includes: a vertically arranged first transparent plate 11 and a horizontally arranged light-absorbing black plate 12, the first transparent plate 11 and the light-absorbing black plate 12 are connected; there are two light-absorbing black plates 12, which are respectively horizontally arranged at the top and bottom of the first transparent plate 11, and both light-absorbing black plates 12 extend in the direction close to the second transparent plate 21; the light-absorbing black plate 12 is made of light-absorbing black material, that is, the light-absorbing black plate 12 is black, and light cannot penetrate the light-absorbing black plate 12.

[0027] The second dual-color light guide plate 2 includes: a vertically arranged second transparent plate 21 and a horizontally arranged infrared-transmitting black plate 22. The second transparent plate 21 is connected to the infrared-transmitting black plate 22. There are two infrared-transmitting black plates 22, which are respectively horizontally arranged at the top of the second transparent plate 21. Both infrared-transmitting black plates 22 extend in a direction away from the first transparent plate 11. The infrared-transmitting black plate 22 is made of infrared-transmitting black material, that is, the infrared-transmitting black plate 22 is black, and the infrared rays in the light can penetrate the infrared-transmitting black plate 22 and melt the infrared-transmitting black plate 22.

[0028] In this embodiment, the light-absorbing black plate 12 extends along the direction close to the second transparent plate 21 to connect with the infrared-transmitting black plate 22; the infrared-transmitting black plate 22 is used to absorb infrared light and melt it before welding it to the light-absorbing black plate 12, and the two light-absorbing black plates 12 are respectively connected to the two infrared-transmitting black plates 22; by using a laser beam emitted by a laser emitter to enter from the infrared-transmitting black plate 22, the infrared beam in the laser beam can pass through the infrared-transmitting black plate 22, while the infrared beam cannot pass through the light-absorbing black plate 12. The infrared beam melts the infrared-transmitting black plate 22 and welds it together with the light-absorbing black plate 12, thereby achieving the fixation of the double-layer light guide plate.

[0029] Example 2:

[0030] Based on Embodiment 1, a horizontal circuit board 3 is detachably installed on the top of the first dual-color light guide plate 1 and the second dual-color light guide plate 2, and multiple LED lights 31 are installed on the circuit board 3; optical patterns are installed on the first transparent plate 11 and the second transparent plate 21, and the first transparent plate 11 and the second transparent plate 21 are used to absorb the light from the LED lights 31 and then illuminate the optical patterns; the light emitted by the LED lights 31 enters the first transparent plate 11 and the second transparent plate 21 to illuminate the optical patterns.

[0031] Example 3:

[0032] Based on Example 1, such as Fig. 2 As shown, a two-color decorative ring 4 is detachably connected to the side wall of the first two-color light guide plate 1. The two-color decorative ring 4 is connected to the first two-color light guide plate 1 by a buckle 41. The two-color decorative ring 4 is black and transparent. When light passes through the transparent material of the two-color decorative ring 4, the patterns presented on the first transparent plate 11 and the second transparent plate 21 can be seen when the lamp is lit.

[0033] In summary, by using a laser beam emitted from a laser emitter to horizontally strike the infrared-transmitting black plate 22, the infrared beam in the laser beam can pass through the infrared-transmitting black plate 22, while the infrared beam cannot pass through the light-absorbing black plate 12. The infrared beam melts the infrared-transmitting black plate 22, thus welding it together with the light-absorbing black plate 12, thereby achieving the fixation of the double-layer light guide plate. In use, the LED light 31 emits light that enters the first transparent plate 11 and the second transparent plate 21 to illuminate the optical pattern. The laser welding has a better fixing effect, allowing the double-layer light guide plate to withstand vibration, impact and other tests of the vehicle headlights after welding. Moreover, the welding area of ​​the double-layer light guide plate is black, which can reduce the appearance defects caused by welding overflow.

[0034] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0035] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fixing structure for a double-layer, dual-color light guide plate, characterized in that, include: The first dual-color light guide plate (1) includes: a vertically arranged first transparent plate (11) and a horizontally arranged light-absorbing black plate (12), wherein the first transparent plate (11) is connected to the light-absorbing black plate (12); The second dual-color light guide plate (2) is arranged parallel to the first dual-color light guide plate (1). The second dual-color light guide plate (2) includes: a vertically arranged second transparent plate (21) and a horizontally arranged infrared-transmitting black plate (22). The second transparent plate (21) is connected to the infrared-transmitting black plate (22). The light-absorbing black plate (12) extends along the direction close to the second transparent plate (21) to connect with the infrared-transmitting black plate (22); the infrared-transmitting black plate (22) is used to absorb infrared light and melt before welding with the light-absorbing black plate (12).

2. The fixing structure of a double-layer dual-color light guide plate as described in claim 1, characterized in that, Two light-absorbing black plates (12) are provided, and the two light-absorbing black plates (12) are respectively horizontally disposed at the top and bottom of the first transparent plate (11). Both light-absorbing black plates (12) extend in a direction close to the second transparent plate (21).

3. The fixing structure of a double-layer dual-color light guide plate as described in claim 2, characterized in that, Two infrared-transparent black plates (22) are provided, and the two infrared-transparent black plates (22) are respectively horizontally disposed at the top of the second transparent plate (21). Both infrared-transparent black plates (22) extend in a direction away from the first transparent plate (11). The two light-absorbing black plates (12) are respectively connected to the two infrared-transmitting black plates (22).

4. The fixing structure of a double-layer dual-color light guide plate as described in claim 1, characterized in that, The top of the first dual-color light guide plate (1) and the second dual-color light guide plate (2) are detachably provided with a horizontal circuit board (3), and the circuit board (3) is provided with a plurality of LED lights (31).

5. The fixing structure of a double-layer dual-color light guide plate as described in claim 4, characterized in that, Optical patterns are provided on both the first transparent plate (11) and the second transparent plate (21). The first transparent plate (11) and the second transparent plate (21) are used to absorb the light from the LED lamp (31) and then illuminate the optical patterns.

6. The fixing structure of a double-layer dual-color light guide plate as described in claim 1, characterized in that, The side wall of the first dual-color light guide plate (1) is detachably connected to a dual-color decorative ring (4), which is connected to the first dual-color light guide plate (1) by a buckle (41).

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