Light guide assembly, light-emitting module using light guide assembly and ADS marker lamp

Abstract

The utility model relates to the technical field of car lamps, in particular to a light guide assembly, a light-emitting module using the light guide assembly and an ADS marker lamp, and the light guide assembly comprises a long-strip-shaped light guide support and a light guide strip partially embedded into the light guide support in the length direction of the light guide support. Wherein an embedding groove for embedding the light guide strip is formed in the light guide bracket; a reflective membrane is also embedded between the light guide bracket and the light guide strip; and the light guide strip comprises a strip-shaped light guide main body part and a pair of light inlet parts which are integrally formed at two width direction ends of the light guide main body part and are bent towards the same side relative to the light guide main body part. According to the utility model, the lighting uniformity can be considered, and the defects of bright lines and bright spots can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a light guide assembly and a light emitting module and an ADS marker lamp using the light guide assembly. Background Art

[0002] The existing lighting distribution structures of lamps mainly include the following:

[0003] The first type is LED + reflector + inner lampshade: The advantage of this type of lighting solution is that the process solution is relatively mature, but the disadvantage is that the large-size light outlet window will have bright spots, the reflector will occupy a large internal space of the lamp, and at the same time, the inner lampshade structure is required, which increases the number of parts and increases production costs.

[0004] The second type is LED + concentrator: The advantage of this type of light distribution solution is that the LED is close to the concentrator and the structure is compact, but the disadvantage is that it appears obvious granularity after lighting, there are obvious dark areas between adjacent light sources, it cannot achieve large-scale uniform light emission, and the light-emitting window cannot be reused.

[0005] The third type is LED + light guide (light guide strip or light guide plate): The advantage of this type of light distribution solution is that the use of light guide structure can greatly improve the uniformity of the lighting effect, but the disadvantage is that the light guide light-emitting structure is prone to defects such as bright lines and bright spots when emitting light, which limits the fixing method of the light guide and makes it difficult to meet the styling requirements.

[0006] Based on the above situation, ADS marker lights (i.e., automated driving system marker lights, which indicate to other road users that the automated driving system is controlling the vehicle's operation) require a flatter design, taking into account actual needs and overall development trends. Therefore, when using LEDs and light guides, only light guide strips are available. For example, the integrated ADS functional lamp structure and ADS marker lights disclosed in Publication No. CN220061524U emit light from the light source, entering through the side of the light guide and emitting from the front of the thick-walled component. This achieves the optical effect of side light entry and uniform front light output for the entire ADS light-emitting structure. However, actual use and research have revealed that, in order to secure the light guide to the overall lighting module, mounting points are required on the light guide's side walls. This design can affect the integrity of the light guide, potentially resulting in defects such as bright lines and bright spots.

[0007] In summary, for ADS marker lights, how to avoid defects such as bright lines and bright spots while taking into account the uniformity of the lighting effect is a technical problem that needs to be overcome. Utility Model Content

[0008] The first object of the utility model is to provide a light guide assembly to solve the technical problem of taking into account both lighting uniformity and avoiding bright line and bright spot defects.

[0009] The second object of the present invention is to provide a light-emitting module to solve the technical problem of taking into account both lighting uniformity and avoiding bright line and bright spot defects.

[0010] The third object of the present utility model is to provide an ADS marker light to solve the technical problem of taking into account both lighting uniformity and avoiding bright line and bright spot defects.

[0011] The light guide assembly of the utility model is realized as follows:

[0012] A light guide assembly comprises: a long light guide bracket, and a light guide strip partially embedded in the light guide bracket along the length direction of the light guide bracket;

[0013] The light guide bracket is formed with an embedding groove for embedding the light guide bar;

[0014] A reflective film is also embedded between the light guide bracket and the light guide bar; and

[0015] The light guide strip includes a strip-shaped light guide main body and a pair of light incident portions integrally formed at two widthwise ends of the light guide main body and bent toward the same side relative to the light guide main body.

[0016] In an optional implementation of the present invention, the reflective film is a metallic PVD film.

[0017] In an optional implementation of the present invention, the reflective film is formed with a receiving groove suitable for the light guide bracket; and

[0018] The cross section of the embedding groove in the width direction is U-shaped; and the cross section of the receiving groove in the width direction is U-shaped.

[0019] In an optional embodiment of the present invention, the light guide bracket includes a strip-shaped main bracket for mounting the light guide main body, and a pair of extension brackets integrally formed at two widthwise ends of the main bracket and bent toward the same side relative to the main bracket;

[0020] The reflective film comprises a strip-shaped main film for being embedded in the main bracket, and a pair of auxiliary films integrally formed at two widthwise ends of the main film and bent toward the same side relative to the main film; and

[0021] Each light incident portion is suitable for being embedded in an extension frame in a one-to-one manner with a secondary diaphragm.

[0022] In an optional implementation of the present invention, the main bracket, the light guide body and the main diaphragm are all straight strip-shaped structures.

[0023] In an optional implementation of the present invention, the main bracket, the light guide body and the main diaphragm are all arc-shaped strip structures.

[0024] In an optional implementation of the present invention, the light guide strip and the reflective film are fixed in the light guide bracket by using a secondary injection molding method.

[0025] The light emitting module of the present invention is realized as follows:

[0026] A light-emitting module comprises: the light guide assembly as described above, and a pair of light-emitting elements corresponding one-to-one to the pair of light incident portions of the light guide assembly;

[0027] The light emitted by each light emitting element is reflected at multiple angles in the light guide bar and then reflected by the reflective film and emitted out of the light guide bar.

[0028] The ADS marker light of the present utility model is realized as follows:

[0029] An ADS marker light, comprising: the aforementioned light emitting module; wherein a mounting bracket for fixing the light emitting element is provided at each end of the light guide bracket facing away from the embedding groove and located at both ends in the length direction of the light guide bracket; and

[0030] Each mounting bracket is also equipped with an outer shell for covering the light-emitting element.

[0031] In an optional implementation of the present invention, the ADS marker light further includes an inner lampshade that cooperates with the light guide bracket and is used to cover the outer layer of the light guide bar.

[0032] By adopting the above technical solution, the present invention has the following beneficial effects: the light guide assembly and the light module and ADS sign light using the same are provided with a reflective film embedded between the light guide bracket and the light guide bar, which makes the light guide bar have a high optical utilization rate and is easy to install. It can not only serve as a signal function for "unmanned driving", but also as an atmosphere lamp to create a good lighting atmosphere effect. In addition, the outer wall of the light guide bar is not damaged by the installation structure, achieving full reflection, eliminating defects such as bright lines and bright spots, making the lighting effect more uniform, and meeting the diversity and creativity of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Shown is the overall structure diagram of the ADS marker light of the present utility model;

[0034] Figure 2 Shown is an exploded structural diagram of the ADS marker light of the present utility model;

[0035] Figure 3 Shown is a partial exploded structural diagram of the ADS marker light of the present utility model;

[0036] Figure 4 Shown is a structural diagram of the light guide assembly of the ADS marker light of the present invention;

[0037] Figure 5 Shown Figure 4 Magnified view of part A.

[0038] In the figure: light guide body 11, light input part 12, main bracket 21, extension frame 22, embedding groove 23, connecting ear 24, main diaphragm 31, auxiliary diaphragm 32, receiving groove 33, light emitting element 4, mounting frame 5, outer shell 6, inner lampshade 7. DETAILED DESCRIPTION

[0039] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0040] Example 1:

[0041] See also Figures 1 to 5 As shown, this embodiment provides a light guide assembly, including: a long light guide bracket, and a light guide bar partially embedded in the light guide bracket along the length direction of the light guide bracket; wherein a groove 23 for mounting the light guide bar is formed in the light guide bracket; a reflective film is also embedded between the light guide bracket and the light guide bar to improve the reflection efficiency and uniformity of light.

[0042] Specifically, the light guide strip in this embodiment includes a strip-shaped light guide main body 11 and a pair of light inlet portions 12 integrally formed at the two widthwise ends of the light guide main body 11 and bent toward the same side relative to the light guide main body 11. Specifically, the reflective film is formed with a receiving groove 33 adapted for the light guide bracket; the embedding groove 23 has a U-shaped cross-section in the width direction; and the receiving groove 33 also has a U-shaped cross-section in the width direction.

[0043] Based on the above, as an example of a specific optional implementation, the reflective film of this embodiment uses a metallic PVD film. The reflective film is independently replaceable, and its surface reflectivity or pattern can be designed to suit different optical needs, thereby creating a pleasant lighting atmosphere. Furthermore, the metallic color provides a novel visual effect, significantly enhancing both light efficiency and aesthetics.

[0044] Next, an optional embodiment is illustrated with reference to the accompanying drawings. The light guide bracket includes a strip-shaped main bracket 21 for receiving the light guide body 11, and a pair of extension brackets 22 integrally formed at the two widthwise ends of the main bracket 21 and bent toward the same side relative to the main bracket 21. Correspondingly, the reflective film includes a strip-shaped main film 31 for receiving the main bracket 21, and a pair of auxiliary film sheets 32 integrally formed at the two widthwise ends of the main film sheet 31 and bent toward the same side relative to the main film sheet 31. Each light entrance portion 12 is adapted to be mounted one-to-one with one auxiliary film sheet 32 in one extension bracket 22.

[0045] In this regard, it should be noted that, in one optional implementation, the main support 21, the light guide body 11, and the main diaphragm 31 are all straight strip-shaped structures. In another optional implementation, the main support 21, the light guide body 11, and the main diaphragm 31 are all curved strip-shaped structures. In this case, the degree of curvature of the main support 21, the light guide body 11, and the main diaphragm 31 should not be too large.

[0046] For example, an optional implementation scenario is used in which the light guide strips and the reflective film are fixed in the light guide bracket by secondary injection molding. The luminous film can be understood as being equivalent to an inlay fixed between the light guide strips and the light guide. In this regard, the secondary injection molding method simplifies the installation process while improving the stability and durability of the overall structure. The outer wall of the light guide strip is not damaged by the installation structure, achieving total reflection and eliminating defects such as bright lines and bright spots, making the lighting effect more uniform and meeting the diversity and creativity of the design. In an optional implementation scenario here, the light guide strips manufactured by IML film in-mold injection molding technology achieve optical properties of high precision and high transparency, providing a basis for the effective transmission and control of light.

[0047] In summary, for the light guide assembly of this embodiment, a reflective film is embedded between the light guide bracket and the light guide bar, so that the light guide bar has a higher optical utilization rate and is easy to install. It can not only serve as an "unmanned driving" signal function, but also as an atmosphere lamp to create a good lighting atmosphere effect.

[0048] Example 2:

[0049] See also Figures 1 to 5 As shown, based on the light guide assembly of Example 1, this embodiment provides a light emitting module, including: the light guide assembly of Example 1, and a pair of light emitting elements 4 corresponding to the pair of light incident portions 12 of the light guide assembly.

[0050] The light emitting element 4 here can optionally be a circuit board and an LED lamp used in conjunction with each other. The light emitted by a pair of LED lamps is reflected at multiple angles in the light guide bar and then reflected by the reflective film and emitted out of the light guide bar.

[0051] Example 3:

[0052] See also Figures 1 to 5 As shown, based on the light-emitting module of Example 2, this embodiment provides an ADS marker light, including: the light-emitting module of Example 2; wherein the end face of the light guide bracket facing away from the embedding groove 23 and the two ends of the light guide bracket in the length direction are respectively provided with a mounting bracket 5 for fixing the light-emitting component 4; and each mounting bracket 5 is also equipped with an outer shell 6 for covering the light-emitting component 4.

[0053] Based on the above situation, it is also necessary to explain that one mounting frame 5 corresponds to one extension frame 22, that is, the corresponding mounting frame 5 and extension frame 22 are adjacently distributed. As for the outer shell 6 used in this embodiment, it can not only be used to form a cover for the light-emitting component 4, but can also be mounted on the mounting frame 5 as a whole. When assembled with the mounting frame 5, the extension frame 22 and the auxiliary diaphragm 32 that cooperates with the extension frame 22 and the light input part 12 are installed into the outer shell 6 together, so that the light emitted by the light-emitting component 4 will not pass through the side of the light input part 12 and finally exit the outer shell 6, so that for the overall ADS marker light, the light is emitted from the light guide main body 11.

[0054] It should be noted that the mounting frame 5 here is mainly used to fix the circuit board of the light-emitting component 4, so that the light emitted by the LED lamp can just enter the light entrance part 12 of the light guide bar. Therefore, the mounting frame 5 and the outer shell 6 do not need to be too large, and they only need to be designed according to the size of the corresponding circuit board. This not only saves material costs, but also reduces the weight of the overall ADS marker light.

[0055] Based on the above structure, in an optional embodiment, the ADS marker light further includes an inner lampshade 7 that cooperates with the light guide bracket to cover the outer layer of the light guide bar. It should be noted that, to facilitate the mating of the light guide bracket and the inner lampshade 7, connecting ears 24 for mounting the inner lampshade 7 are formed on both widthwise ends of the main bracket 21, and the design of these connecting ears 24 does not interfere with the extension bracket 22. Regarding the inner lampshade 7, it is also necessary to note that after the initial mating of the inner lampshade 7 and the connecting ears 24, the outer shell 6 and the mating surfaces of the inner lampshade 7 are hinged to ensure relative fixation between the inner lampshade 7 and the outer shell 6.

[0056] Finally, it is necessary to explain that for the ADS marker light of this embodiment, when it is actually assembled on a car for use, it will be further configured with, for example but not limited to, an outer lampshade, and will be designed in combination with the installation needs of different models. This embodiment does not make an absolute limitation on this.

[0057] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0058] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0059] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0060] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A light guide assembly, characterized in that: include: A long light guide bracket and a light guide strip partially embedded in the light guide bracket along the length direction of the light guide bracket; in The light guide bracket is formed with an embedding groove for embedding the light guide bar; A reflective film is also embedded between the light guide bracket and the light guide bar; and The light guide strip includes a strip-shaped light guide main body and a pair of light incident portions integrally formed at two widthwise ends of the light guide main body and bent toward the same side relative to the light guide main body.

2. The light guide assembly according to claim 1, wherein The reflective film is a metallic PVD film.

3. The light guide assembly according to claim 1 or 2, characterized in that The reflective film is formed with a receiving groove suitable for the light guide bracket; and The cross section of the embedding groove in the width direction is U-shaped; and the cross section of the receiving groove in the width direction is U-shaped.

4. The light guide assembly according to claim 1 or 2, characterized in that: The light guide bracket includes a strip-shaped main bracket for assembling the light guide main body, and a pair of extension brackets integrally formed at two widthwise ends of the main bracket and bent toward the same side relative to the main bracket; The reflective film comprises a strip-shaped main film for being embedded in the main bracket, and a pair of auxiliary films integrally formed at two widthwise ends of the main film and bent toward the same side relative to the main film; and Each light incident portion is suitable for being embedded in an extension frame in a one-to-one manner with a secondary diaphragm.

5. The light guide assembly according to claim 4, wherein: The main support, the light guide main body and the main diaphragm are all straight strip-shaped structures.

6. The light guide assembly according to claim 4, wherein: The main bracket, the light guide main body and the main diaphragm are all arc-shaped strip structures.

7. The light guide assembly according to claim 1, wherein The light guide strip and the reflective film are fixed in the light guide bracket by adopting a secondary injection molding method.

8. A light emitting module, characterized in that: include: The light guide assembly according to any one of claims 1 to 7, and a pair of light emitting members corresponding one-to-one to the pair of light incident portions of the light guide assembly; The light emitted by each light emitting element is reflected at multiple angles in the light guide bar and then reflected by the reflective film and emitted out of the light guide bar.

9. An ADS marker light, characterized in that: include: Using the light-emitting module as claimed in claim 8; Wherein, a mounting bracket for fixing the light-emitting element is respectively provided on the end surface of the light guide bracket facing away from the embedding groove and at both ends in the length direction of the light guide bracket; and Each mounting bracket is also equipped with an outer shell for covering the light-emitting element.

10. The ADS marker light according to claim 9, characterized in that: The ADS marker light also includes an inner lampshade that cooperates with the light guide bracket and is used to cover the outer layer of the light guide bar.

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