High-brightness uniform multi-layer structure automobile light guide strip

Abstract

The utility model discloses a high-brightness uniform multi-layer structure automobile light guide strip, and belongs to the field of automobile light guide strips. The high-brightness uniform multi-layer structure automobile light guide strip comprises a first light guide strip, a second light guide strip is arranged on one side of the first light guide strip, and a transition part is arranged between the second light guide strip and the first light guide strip. The automobile light guide strip solves the problems that according to an existing automobile light guide strip, part of light transmission provided by the light inlet portion of the light guide strip is prone to being stopped at the bending position, and when part of light transmission is stopped, the exterior of the automobile light guide strip of the multi-layer structure looks uneven at the highlighted position in actual use. According to the light guide strip, different light guide tracks are provided through the first light guide area and the second light guide area, and at the bending position, the second light guide area improves the light guide effect of the light guide strip by means of the reflection structure in the first light guide area and by increasing the reflection effect.

Description

Technical Field

[0001] The utility model relates to the field of automobile light guide strips, in particular to an automobile light guide strip with a high brightness and uniform multi-layer structure. Background Art

[0002] The multi-layered automotive light guide strip is an advanced automotive interior lighting device with a unique design and powerful functions. It is composed of multiple layers of carefully selected materials, each layer of which is carefully designed and processed to ensure the effective guidance and distribution of light. This light guide strip can effectively guide light to various parts of the car that need to be illuminated, such as the dashboard, doors, pedals, etc., creating a comfortable, beautiful and technological driving environment for the driver and passengers.

[0003] A Chinese patent with publication number CN203771299U discloses an automotive light guide strip, including a light inlet portion, a first light guide strip, a bottom end of which is connected to the top of the light inlet portion, and a first fixing portion is provided on the side of the bottom end of the first light guide strip. The shape and structure of the fixing portion have minimal influence on the light guiding effect of the light guide strip. Therefore, the fixing portions can all be glue injection ports. Since a fixing portion is added to the first light guide strip, glue can be injected from three fixing portions at the same time, which effectively solves the problem of insufficient glue injection pressure and effectively solves the problem of material shrinkage.

[0004] When the automotive light guide strip of the above patent is in use and guiding light, the light transmission provided by the light inlet portion of the light guide strip is prone to stop part of the transmission at the bending position. Stopping part of the light transmission will cause the highlight of the multi-layered automotive light guide strip to appear uneven when actually in use. Utility Model Content

[0005] The purpose of the utility model is to provide a high-brightness and uniform multi-layer structure for automobile light guide strips, which provides different light guide trajectories through a first light guide area and a second light guide area, and in a curved position, the second light guide area makes use of the reflective structure inside the first light guide area, while the first light guide area makes use of the reflective structure inside the second light guide area, thereby improving the light guiding effect of the light guide strip by making use of and increasing the reflection effect, making the high-light position distribution on the surface of the light guide strip uniform, and solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-brightness and uniform multi-layer structure automotive light guide strip, comprising a first light guide strip, a second light guide strip is arranged on one side of the first light guide strip, a transition portion is arranged between the second light guide strip and the first light guide strip, a first light guide area is arranged on one side inside the first light guide strip and the second light guide strip, a second light guide area is arranged on the other side inside the first light guide strip and the second light guide strip, a first reflective bump is arranged at the lower end inside the first light guide area, and a second reflective bump is arranged at the upper end inside the first light guide area.

[0007] Preferably, a third reflective bump is disposed at an upper end between the second reflective bump and the first reflective bump, and a fourth reflective bump is disposed at a lower end between the second reflective bump and the first reflective bump.

[0008] Preferably, the interior of the second light guide area is mirror-imaged with respect to the interior of the first light guide area and is provided with a first reflective bump, a second reflective bump, a third reflective bump and a fourth reflective bump.

[0009] Preferably, a reflective coating is disposed outside the first light guiding area and the second light guiding area, and the first reflective protrusion, the second reflective protrusion, the third reflective protrusion and the fourth reflective protrusion are all fixed to the inside of the reflective coating by glue.

[0010] Preferably, filling blocks are provided at both upper and lower ends between the reflective coating and the transition portion.

[0011] Preferably, one end of each of the first light guide strip and the second light guide strip is provided with a sealing filling sheet for sealing.

[0012] Preferably, a pair of first light-inlet ends are disposed on one side of the exterior of the two sealing filling sheets, and a pair of second light-inlet ends are disposed on the other side of the exterior of the two sealing filling sheets.

[0013] Preferably, a pair of connection plates are provided on one side of the outside of the first light input end and the second light input end, and a bonding sheet is welded to one end of the two connection plates.

[0014] Preferably, through holes are provided on both sides of the bonding sheet, and the through holes penetrate the front and rear ends of the bonding sheet.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. When the utility model receives light and guides light, the light source body receives the light source and transmits the light to the first light guide strip and the second light guide strip. The light source received at the first light input end position will be reflected and transmitted by the reflective protrusions in the second light guide area, while the light source received at the second light input end position will be reflected and transmitted by the reflective protrusions in the first light guide area. In the process of light transmission, if the light encounters a curved part generated by the transition part or a part manually bent by the user, the reflected light source will be reflected by the common reflective protrusions in the first light guide area and the second light guide area to form light guidance, thereby avoiding the inability to completely reflect and transmit the light at the bent position. By adding temporary reflective protrusions, the surface of the light guide strip can be made bright and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall external structure of the utility model;

[0018] Figure 2 It is a stereoscopic diagram of the external structure of the first light inlet end and the second light inlet end of the utility model;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the first light guide strip and the second light guide strip of the utility model;

[0020] Figure 4 For the utility model Figure 3 A partial enlarged view of area A.

[0021] In the figure: 1. first light guide strip; 2. second light guide strip; 3. transition part; 4. sealing filling piece; 5. first light input end; 6. second light input end; 7. connecting plate; 8. bonding sheet; 9. through hole; 10. groove; 11. connecting sheet; 12. first light guide area; 13. second light guide area; 14. first reflective bump; 15. second reflective bump; 16. third reflective bump; 17. fourth reflective bump; 18. filling block; 19. reflective coating. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to solve the problem that when the automotive light guide strip in the prior art is in use and guiding light, the light transmission provided by the light inlet portion of the light guide strip is prone to stop part of the transmission at the bending position, and stopping part of the light transmission will cause the highlight of the multi-layered automotive light guide strip to appear uneven when actually used, this embodiment provides the following technical solutions:

[0024] A high-brightness and uniform multi-layered automotive light guide strip comprises a first light guide strip 1, a second light guide strip 2 is arranged on one side of the first light guide strip 1, and Figure 1 As shown, a transition portion 3 is provided between the second light guide strip 2 and the first light guide strip 1. The pre-set bend of the transition portion 3 can facilitate the installation of the light guide strip in the actual process. At the same time, the curved transition portion 3 can also facilitate the transportation of the light guide strip in the actual process, reduce collision, and avoid damage to the internal reflective structure.

[0025] In this embodiment, if Figure 1 A sealing filler sheet 4 for sealing is provided at one end of the first light guide strip 1 and the second light guide strip 2. The sealing filler sheet 4 can seal and wrap the reflective structure inside the first light guide strip 1 and the second light guide strip 2 to prevent foreign matter from entering the interior and affecting the service life and light guide;

[0026] In this embodiment, a pair of first light inlet ends 5 are disposed on one side of the two sealing filling sheets 4, and a pair of second light inlet ends 6 are disposed on the other side of the two sealing filling sheets 4. Figure 2 As shown, the external light source is transmitted into the sealing filling sheet 4 through the positions of the first light inlet end 5 and the second light inlet end 6. The first light inlet end 5 and the second light inlet end 6 are provided with a light source body at one end away from the sealing filling sheet 4. The light source body can facilitate the transmission of external light and facilitate the transmission of light to the first light guide strip 1 and the second light guide strip 2.

[0027] In this embodiment, a pair of connection plates 7 are provided on one side of the outside of the first light inlet end 5 and the second light inlet end 6, and a bonding sheet 8 is welded to one end of each of the two connection plates 7. The bonding sheet 8 is connected to the surface of the connection plate 7 by welding, and through holes 9 are provided on both sides of the inside of the bonding sheet 8, and the through holes 9 pass through the front and rear ends of the bonding sheet 8, such as Figure 2 As shown, the bolt passes through the position of the through hole 9, and the reserved through hole 9 can facilitate the installation of the light guide bar. At the same time, on the side of the connection plate 7 and the reserved through hole 9 close to the first light inlet end 5 receiving the light source, the bolt is installed at this position to improve the stability of the installation of the light guide bar, so that the external light source can be accurately projected into the first light inlet end 5 and the second light inlet end 6. The stable receiving light source can make the highlight position of the entire surface of the light guide bar uniform;

[0028] In this embodiment, a groove 10 is arranged around the inside of the through hole 9. The depression produced by the groove 10 can facilitate the embedding of the bolt and the installation of the bolt. Figure 2 As shown, the installed screws do not protrude from the surface of the bonding sheet 8, but are received inside the through hole 9, which is convenient for the user to install and improves the stability of bolt installation and removal;

[0029] In this embodiment, a first light guide area 12 is disposed on one side inside the first light guide bar 1 and the second light guide bar 2, and a second light guide area 13 is disposed on the other side inside the first light guide bar 1 and the second light guide bar 2. Figure 3 As shown, after the external light source enters through the first light inlet end 5 and the second light inlet end 6, most of the light source received by the second light inlet end 6 will be reflected in the first light guide area 12 and guide light, while most of the light source received by the first light inlet end 5 will be reflected in the second light guide area 13 and guide light. When the surface and the interior of the light guide strip are bent, the light reflected in the first light guide area 12 will rely on the reflective structure inside the second light guide area 13, while the second light guide area 13 is the opposite. The light reflected in the second light guide area 13 will rely on the reflective structure inside the first light guide area 12, and the reflective structure will be increased autonomously to achieve high-brightness uniform display.

[0030] In this embodiment, a first reflective bump 14 is disposed at the lower end of the first light guide area 12, a second reflective bump 15 is disposed at the upper end of the first light guide area 12, a third reflective bump 16 is disposed at the upper end between the second reflective bump 15 and the first reflective bump 14, and a fourth reflective bump 17 is disposed at the lower end between the second reflective bump 15 and the first reflective bump 14. Figure 3 As shown, the interior of the second light guide area 13 is mirror-imaged with respect to the interior of the first light guide area 12 and is provided with a first reflective protrusion 14, a second reflective protrusion 15, a third reflective protrusion 16 and a fourth reflective protrusion 17. The first reflective protrusion 14, the second reflective protrusion 15, the third reflective protrusion 16 and the fourth reflective protrusion 17 cooperate with each other to realize the transmission of light, so that the light guide strip realizes the function of transmitting light.

[0031] In this embodiment, if Figure 3 and Figure 4 As shown, a reflective coating 19 is disposed outside the first light guide area 12 and the second light guide area 13, and the first reflective convex block 14, the second reflective convex block 15, the third reflective convex block 16 and the fourth reflective convex block 17 are all fixed to the inside of the reflective coating 19 by glue bonding, and filling blocks 18 are disposed at both upper and lower ends between the reflective coating 19 and the transition portion 3, and the gap between the reflective coating 19 and the transition portion 3 is filled by the filling blocks 18, and the filling can prevent the reflective coating 19 from deforming during bending, causing deformation of the external first light guide strip 1 and the second light guide strip 2, and the deformation of the reflective coating 19 is buffered by the filling blocks 18 of sponge material and offsets the impact of the deformation on the first light guide strip 1 and the second light guide strip 2;

[0032] In this embodiment, a connecting sheet 11 is provided between the two bonding sheets 8, and the connecting sheet 11 is respectively welded and fixed to the two bonding sheets 8. Figure 1 , Figure 2 and Figure 3 As shown, connecting the two bonding sheets 8 through the connecting sheet 11 also supports the first light input end 5 and the second light input end 6, which is convenient for the stability of the overall installation of the light guide strip. The improvement of stability can directly improve the stability of the overall high-light position of the light guide strip.

[0033] Working principle: When the light guide strip is used and installed, the first light inlet end 5 and the second light inlet end 6 are fixed at the light-emitting position by passing a bolt through the through hole 9, so that the light-emitting position is aligned with the light source body exposed by the first light inlet end 5 and the second light inlet end 6, so that the light can be irradiated into the first light guide strip 1 and the second light guide strip 2 through the first light inlet end 5 and the second light inlet end 6. When the light is irradiated into the first light guide strip 1 and the second light guide strip 2, the light generated at the position of the first light inlet end 5 is reflected by the inside of the second light guide area 13, and the light generated at the position of the second light inlet end 6 is reflected by the first The light is reflected inside the light-guiding area 12. When the light is reflected by the second light-guiding area 13 and the first light-guiding area 12, the light is reflected by the protruding first reflection bump 14, the second reflection bump 15, the third reflection bump 16 and the fourth reflection bump 17. When reflecting, the light encounters the bending generated at the transition portion 3, which can make the reflected light reflect with the help of the adjacent area. A group of first reflection bumps 14, second reflection bumps 15, third reflection bumps 16 and fourth reflection bumps 17 in the adjacent area can improve the reflection effect, so that the surface of the light-guiding strip is bright and uniform.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-brightness and uniform multi-layered automotive light guide strip, comprising a first light guide strip (1), a second light guide strip (2) being arranged on one side of the first light guide strip (1), a transition portion (3) being arranged between the second light guide strip (2) and the first light guide strip (1), characterized in that: A first light guide area (12) is arranged on one side inside the first light guide strip (1) and the second light guide strip (2), a second light guide area (13) is arranged on the other side inside the first light guide strip (1) and the second light guide strip (2), a first reflective convex block (14) is arranged at the lower end inside the first light guide area (12), and a second reflective convex block (15) is arranged at the upper end inside the first light guide area (12).

2. The high-brightness and uniform multi-layered automotive light guide strip according to claim 1, characterized in that: A third reflective bump (16) is arranged at the upper end between the second reflective bump (15) and the first reflective bump (14), and a fourth reflective bump (17) is arranged at the lower end between the second reflective bump (15) and the first reflective bump (14).

3. The high-brightness and uniform multi-layered automotive light guide strip according to claim 2, characterized in that: The interior of the second light guide area (13) is mirror-imaged relative to the interior of the first light guide area (12) and is provided with a first reflective convex block (14), a second reflective convex block (15), a third reflective convex block (16) and a fourth reflective convex block (17).

4. The high-brightness and uniform multi-layered automotive light guide strip according to claim 3, characterized in that: A reflective coating (19) is provided outside the first light guiding area (12) and the second light guiding area (13), and the first reflective convex block (14), the second reflective convex block (15), the third reflective convex block (16) and the fourth reflective convex block (17) are all fixed to the inside of the reflective coating (19) by means of glue.

5. The high-brightness and uniform multi-layered automotive light guide strip according to claim 4, characterized in that: Filling blocks (18) are provided at both upper and lower ends between the reflective coating (19) and the transition portion (3).

6. The high-brightness and uniform multi-layered automotive light guide strip according to claim 1, characterized in that: One end of each of the first light guide strip (1) and the second light guide strip (2) is provided with a sealing filling sheet (4) for sealing.

7. The high-brightness and uniform multi-layered automotive light guide strip according to claim 6, characterized in that: A pair of first light-inlet ends (5) are arranged on one side of the exterior of the two sealing filling sheets (4), and a pair of second light-inlet ends (6) are arranged on the other side of the exterior of the two sealing filling sheets (4).

8. The high-brightness and uniform multi-layered automotive light guide strip according to claim 7, characterized in that: A pair of connection plates (7) are provided on one side of the outside of the first light input end (5) and the second light input end (6), and a bonding sheet (8) is welded to one end of the two connection plates (7).

9. The high-brightness and uniform multi-layered automotive light guide strip according to claim 8, characterized in that: Through holes (9) are provided on both sides of the bonding sheet (8), and the through holes (9) penetrate the front and rear ends of the bonding sheet (8).

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