Vehicle lamp thick-wall light guide structure capable of uniformly emitting light, vehicle lamp and vehicle
By using an inclined arc surface with different curvatures in the incident area of the thick-walled light guide structure, the problem of uneven light emission on the sides of the thick-walled light guide is solved, and a more uniform luminous effect and higher light efficiency are achieved, which improves the The appearance of the headlights is productive.
Patent Information
- Application Number
- CN202421413798.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The side light emitting of the thick-walled light guide structure is uneven, which affects the appearance of the car light and the use of light effects.
A plurality of arcuate surfaces connected in sequence are used to form an incident area. The arcuate surface is inclined and the curvature is not exactly the same. Each arcuate surface is provided with patterns to reduce the gathering of light at the connection and improve the uniformity of light emission.
The luminescence uniformity of the thick-walled light guide is improved, the aesthetics of the light surface is improved, and the efficient use of light is achieved by gathering light, increasing the appearance product capabilities of the car light.
Smart Images
Figure CN222503607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile lamps, in particular to a thick-walled light guide structure of an automobile lamp with uniform light emission, an automobile lamp and a vehicle. Background Art
[0002] At present, the trend of using thick-walled light guides for headlights in the automotive industry has gradually become the mainstream. They are widely used in brake lights, turn signals, brake lights, rear fog lights, position lights, and daytime running lights. Thick-walled light guides present customers with a crystal-clear three-dimensional luminous effect, making the shape of vehicle headlights more diverse and more attractive. The optical incident surface of the traditional thick-walled light guide structure is usually connected by multiple bosses protruding toward the light-emitting side. The bosses are parallel to the horizontal direction. Although it can ensure the uniform frontal luminous effect of the headlight, the light on the side is not uniform when looking into the lamp from the side. The steps behind the thick-walled light guide can be clearly seen. The existence of multiple steps affects the appearance of the entire lamp. The appearance of the product appeal, and the structure of the steps will also disperse the light type, which is not conducive to the efficient use of light effects.
[0003] Therefore, how to improve the problem of uneven light emission on the side of thick-walled light guides is a problem that urgently needs to be solved. Utility Model Content
[0004] The main purpose of the utility model is to provide a thick-walled light guide structure for a vehicle lamp with uniform light emission, a vehicle lamp and a vehicle, aiming to solve the problem of uneven light emission on the side surface of the thick-walled light guide.
[0005] To achieve the above-mentioned purpose, the utility model proposes a thick-walled light guide structure for a vehicle lamp with uniform light emission, the thick-walled light guide structure for a vehicle lamp with uniform light emission comprising a light emitting component and a thick-walled light guide, the thick-walled light guide comprising a main body and a concentrator connected to each other, an incident surface and a light emitting surface being arranged at both ends of the main body, the main body being connected to the light emitting component, the two sides of the concentrator being arranged corresponding to the light emitting component and the incident surface respectively, so that the light emitted by the light emitting component passes through the concentrator and enters the incident surface and then is emitted through the light emitting surface; the incident surface comprises an incident area, the incident area comprises a plurality of arcuate surfaces connected in sequence, the plurality of arcuate surfaces are all arranged inclined, the curvatures of the arcuate surfaces are not completely the same, and textures are arranged on each of the arcuate surfaces.
[0006] In one embodiment, skin texture is provided on both sides of the body.
[0007] In one embodiment, the light emitting surface is provided with stripes.
[0008] In one embodiment, the light emitting surface is an arc-shaped curved surface.
[0009] In one embodiment, the light emitting assembly includes a PCB board and a light emitting component that are connected to each other, the PCB board is connected to the body, and the light emitting component is arranged corresponding to the concentrator.
[0010] In one embodiment, there are multiple light-emitting elements, which are arranged at intervals along the extension direction of the incident surface, and there are multiple concentrators, which are not greater than the number of the light-emitting elements.
[0011] In one embodiment, the concentrator is a circular concentrator or a special-shaped concentrator.
[0012] In one embodiment, the thick-walled light guide is a polymethyl methacrylate thick-walled light guide.
[0013] The utility model also proposes a vehicle lamp, comprising a bracket, a lamp housing, a lampshade and a thick-walled light-guiding structure for a vehicle lamp that emits light uniformly as described in any of the above technical solutions, wherein the lamp housing is connected to the lampshade, the lamp housing and the lampshade enclose an installation space, the bracket and the thick-walled light-guiding structure for a vehicle lamp that emits light uniformly are both located in the installation space, the bracket is connected to the lamp housing, the thick-walled light-guide is connected to the bracket, a light-emitting area is provided on the lampshade, a mounting hole is provided on the bracket, and the body passes through the mounting hole so that the light-emitting surface is arranged corresponding to the light-emitting area.
[0014] The utility model also provides a vehicle, comprising a vehicle body and a vehicle lamp as described in any one of the above technical solutions, wherein the lamp housing is connected to the vehicle body.
[0015] In the embodiment of the utility model, an incident area is arranged on the incident surface, one side of the concentrator is arranged corresponding to the light-emitting component, and the other side of the concentrator is arranged corresponding to the incident area. The light emitted by the light-emitting component can pass through the concentrator and then enter the incident area and then enter the main body, and is totally reflected and refracted in the main body, and finally emitted in parallel from the light-emitting surface. In order to improve the problem of uneven light emission on the side of the thick-walled light guide, the incident area includes a plurality of arcuate surfaces connected in sequence. Compared with the structure formed by connecting a plurality of bosses protruding toward the light-emitting side in the existing structure, the connection between each arcuate surface in the direction of the light-emitting side is reduced. distance, thereby reducing the light incident on the connection, improving the problem of uneven light emission on the side of the thick-walled light guide, enhancing the light emission uniformity of the thick-walled light guide, and improving the aesthetics of the light-emitting surface of the thick-walled light guide; and in order to make the light enter the body from the incident surface and then be emitted through the light-emitting surface, a plurality of arcuate surfaces are inclined from right to left, the curvatures of the arcuate surfaces are not exactly the same, and textures are arranged on each arcuate surface. By adjusting the inclination angle and curvature of each arcuate surface, the light can be gathered to achieve efficient use of the light, improve the problem of light diffusion of the thick-walled light guide, and increase the appearance commodity ability of the car lamp. The embodiment of the utility model adopts a plurality of curved surfaces connected in sequence to form an incident area. Compared with the structure formed by connecting a plurality of bosses protruding toward the light-emitting side in the existing structure, the distance between the connection points of each curved surface in the direction of the light-emitting side is reduced, thereby reducing the light incident on the connection point, improving the problem of uneven side light emission of the thick-walled light guide, enhancing the light emission uniformity of the thick-walled light guide, and improving the aesthetics of the light-emitting surface of the thick-walled light guide; by adopting a plurality of inclined curved surfaces, the curvatures of the curved surfaces are not exactly the same, and each curved surface is provided with textures. By adjusting the inclination angle and curvature of each curved surface, the light can be gathered, thereby realizing efficient use of light, improving the problem of light type diffusion of the thick-walled light guide, and increasing the appearance commodity capability of the car lamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0017] Figure 1 It is a structural schematic diagram of an embodiment of a thick-walled light guide structure for a vehicle lamp with uniform light emission according to the utility model;
[0018] Figure 2 It is a structural schematic diagram of another perspective of an embodiment of a thick-walled light guide structure of a vehicle lamp with uniform light emission according to the utility model;
[0019] Figure 3It is a structural schematic diagram of an embodiment of a thick-walled light guide of a thick-walled light guide structure for a vehicle lamp with uniform light emission according to the utility model;
[0020] Figure 4 It is a structural schematic diagram of an embodiment of the light propagation path of the incident surface of the thick-walled light guide of the thick-walled light guide structure of the vehicle lamp with uniform light emission according to the utility model;
[0021] Figure 5 The present invention is a schematic structural diagram of an embodiment of the light propagation path of the light emitting surface of the thick-walled light guide structure of the vehicle lamp with uniform light emission according to the present invention.
[0022] Description of Figure Numbers:
[0023] 100. Thick-walled light guide structure for a vehicle lamp with uniform light emission; 1. Light-emitting component; 11. PCB board; 12. Light-emitting part; 2. Thick-walled light guide; 21. Main body; 211. Incident surface; 2111. Incident area; 21111. Curved surface; 212. Light-emitting surface; 2121. Stripes; 22. Concentrator; 210. Bracket; 220. Lampshade.
[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0025] 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 of 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.
[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, and back), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0028] At present, the trend of using thick-walled light guides for headlights in the automotive industry has gradually become the mainstream. They are widely used in brake lights, turn signals, brake lights, rear fog lights, position lights, and daytime running lights. Thick-walled light guides present customers with a crystal-clear three-dimensional luminous effect, making the shape of vehicle headlights more diverse and more attractive. The optical incident surface of the traditional thick-walled light guide structure is usually connected by multiple bosses protruding toward the light-emitting side. The bosses are parallel to the horizontal direction. Although it can ensure the uniform frontal luminous effect of the headlight, the light on the side is not uniform when looking into the lamp from the side. The steps behind the thick-walled light guide can be clearly seen. The existence of multiple steps affects the appearance of the entire lamp. The appearance of the product appeal, and the structure of the steps will also disperse the light type, which is not conducive to the efficient use of light effects.
[0029] The main purpose of the utility model is to provide a thick-walled light guide structure for a vehicle lamp with uniform light emission, a vehicle lamp and a vehicle, aiming to solve the problem of uneven light emission on the side surface of the thick-walled light guide.
[0030] See also Figures 1 to 5 In one embodiment of the utility model, the thick-walled light guide structure 100 of the uniformly luminous vehicle lamp includes a light-emitting component 1 and a thick-walled light guide 2. The thick-walled light guide 2 includes a main body 21 and a concentrator 22 connected to each other. An incident surface 211 and a light-emitting surface 212 are provided at both ends of the main body 21. The main body 21 is connected to the light-emitting component 1. The two sides of the concentrator 22 are respectively provided corresponding to the light-emitting component 1 and the incident surface 211, so that the light emitted by the light-emitting component 1 passes through the concentrator 22 and enters the incident surface 211 and then is emitted through the light-emitting surface 212; the incident surface 211 includes an incident area 2111, and the incident area 2111 includes a plurality of arcuate surfaces 21111 connected in sequence. The plurality of arcuate surfaces 21111 are all inclined, and the curvatures of the arcuate surfaces 21111 are not exactly the same, and each arcuate surface 21111 is provided with textures.
[0031] In the embodiment of the utility model, an incident area 2111 is provided on the incident surface 211, one side of the concentrator 22 is provided corresponding to the light emitting component 1, and the other side of the concentrator 22 is provided corresponding to the incident area 2111. The light emitted by the light emitting component 1 can pass through the concentrator 22 and then enter the incident area 2111 and then enter the body 21, and is totally reflected and refracted in the body 21, and finally emitted in parallel from the light emitting surface 212. In order to improve the problem of uneven light emission on the side of the thick-walled light guide 2, the incident area 2111 includes a plurality of arcuate surfaces 21111 connected in sequence. Compared with the structure formed by connecting a plurality of bosses protruding toward the light emitting side in the existing structure, the connection between the arcuate surfaces 21111 in the direction of the light emitting side is reduced. distance, thereby reducing the light incident on the connection, improving the problem of uneven light emission on the side of the thick-walled light guide 2, enhancing the light emission uniformity of the thick-walled light guide 2, and improving the aesthetics of the light-emitting surface 212 of the thick-walled light guide 2; and in order to allow the light to enter the main body 21 from the incident surface 211 and then be emitted through the light-emitting surface 212, the multiple curved surfaces 21111 are all inclined from right to left, and the curvatures of the curved surfaces 21111 are not exactly the same, and each curved surface 21111 is provided with textures. By adjusting the inclination angle and curvature of each curved surface 21111 during the production and processing process, the light can be gathered to achieve efficient use of the light, improve the problem of light diffusion of the thick-walled light guide 2, and increase the appearance commodity ability of the car lamp.
[0032] The technical solution of the utility model adopts a plurality of curved surfaces 21111 to be connected in sequence to form an incident area 2111. Compared with the structure formed by connecting a plurality of bosses protruding toward the light-emitting side in the existing structure, the distance between the connection points of each curved surface 21111 in the direction of the light-emitting side is reduced, thereby reducing the light incident on the connection point, improving the problem of uneven side light emission of the thick-walled light guide 2, enhancing the light emission uniformity of the thick-walled light guide 2, and improving the aesthetics of the light-emitting surface 212 of the thick-walled light guide 2; by adopting a plurality of inclined curved surfaces 21111, the curvature of each curved surface 21111 is not exactly the same, and each curved surface 21111 is provided with textures. By adjusting the inclination angle and curvature of each curved surface 21111, light can be gathered to achieve efficient use of light, improve the problem of light diffusion of the thick-walled light guide 2, and increase the appearance commodity capability of the car lamp.
[0033] In one embodiment, skin texture is provided on both sides of the main body 21 (not shown); specifically, in order to eliminate the problem of light spots appearing on the light emitting surface 212, skin texture is provided on both sides of the main body 21, and the light propagating in the main body 21 is reflected by the skin texture and the propagation path is changed, thereby achieving the purpose of eliminating bright spots, and achieving the best effect of the thick-walled light guide 2 while achieving low cost.
[0034] See also Figure 5In one embodiment, the light emitting surface 212 is provided with stripes 2121; specifically, the light emitting surface 212 is provided with stripes 2121, and the stripes 2121 can adopt a corn-grain structure, which can adjust the light distribution to meet the regulatory light distribution requirements and make the emitted light more uniform, thereby further improving the light emission uniformity of the thick-walled light guide 2.
[0035] See also Figure 4 In one embodiment, the light emitting surface 212 is an arcuate curved surface; specifically, in order to ensure the uniformity of light emission of the thick-walled light guide 2, the distance from each incident area 2111 to the light emitting surface 212 needs to be kept the same. Since each arcuate surface 21111 is inclined from right to left, the light emitting surface 212 is an arcuate curved surface structure, and the bending direction of the light emitting surface 212 is the same as the inclination direction of each arcuate surface 21111, so that the distance from each incident area 2111 to the light emitting surface 212 is the same, thereby ensuring the uniformity of light emission of the thick-walled light guide 2.
[0036] In one embodiment, the light-emitting component 1 includes a PCB board 11 and a light-emitting component 12 that are interconnected, the PCB board 11 is connected to the main body 21, and the light-emitting component 12 is arranged corresponding to the concentrator 22; specifically, to ensure that the light-emitting component 1 can emit light smoothly, the light-emitting component 1 includes a PCB board 11 and a light-emitting component 12 that are interconnected, the PCB board 11 is used to control the on and off of the circuit, the light-emitting component 12 can be an LED lamp, the PCB board 11 is connected to the main body 21, and the LED lamp is arranged corresponding to the concentrator 22, so that the light emitted by the LED lamp can pass through the concentrator 22 and then enter the main body 21.
[0037] In one embodiment, there are multiple light emitting elements 12, which are arranged at intervals along the extension direction of the incident surface 211, and there are multiple concentrators 22, which are not greater than the number of light emitting elements 12; specifically, to ensure sufficient light sources, there can be multiple light emitting elements 12, which are arranged at intervals along the extension direction of the incident surface 211, and to reduce light consumption so that the light emitted by the light emitting elements 12 can enter the body 21, there are also multiple concentrators 22, and in this embodiment, the number of concentrators 22 is consistent with the number of light emitting elements 12 and is arranged one-to-one; in another embodiment, the number of concentrators 22 is less than the number of light emitting elements 12, and multiple light emitters are arranged corresponding to the same concentrator 22. In this embodiment, the specific number of light emitting elements 12 and concentrators 22 is not limited.
[0038] In one embodiment, the concentrator 22 is a circular concentrator or a special-shaped concentrator; specifically, the two sides of the concentrator 22 are respectively arranged corresponding to the light-emitting component 1 and the incident surface 211, and the concentrator 22 is used to guide the light emitted by the light-emitting component 12 into the main body 21. In this embodiment, the concentrator 22 adopts a circular concentrator, and the concentrator 22 and the main body 21 are an integrated structure. The concentrator 22 can also adopt a special-shaped concentrator. This embodiment does not limit the specific structure of the concentrator 22.
[0039] In one embodiment, the thick-walled light guide 2 is a polymethyl methacrylate thick-walled light guide; specifically, the polymethyl methacrylate thick-walled light guide has good optical purity and excellent light transmission performance, is ultra-thin and ultra-bright, has uniform light transmission, is energy-saving and durable, and can meet usage requirements.
[0040] The utility model also proposes a vehicle lamp, which includes a bracket 210, a lamp housing (not shown), a lampshade 220 and a uniformly luminous vehicle lamp thick-walled light-guiding structure 100. The specific structure of the uniformly luminous vehicle lamp thick-walled light-guiding structure 100 refers to the above-mentioned embodiment. Since the vehicle lamp adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, the lamp housing is connected to the lampshade 220, and the lamp housing and the lampshade 220 are enclosed to form an installation space. The bracket 210 and the uniformly luminous vehicle lamp thick-walled light-guiding structure 100 are both located in the installation space, the bracket 210 is connected to the lamp housing, the body 21 is connected to the bracket 210, the lampshade 220 is provided with a light-emitting area, the bracket 210 is provided with a mounting hole, and the body 21 passes through the mounting hole so that the light-emitting surface 212 is arranged corresponding to the light-emitting area.
[0041] The utility model also provides a vehicle, which includes a vehicle body and a headlight. The specific structure of the headlight is referred to the above embodiment. Since the vehicle adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the lamp housing is connected to the vehicle body.
[0042] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A thick-walled light guide structure for a vehicle lamp with uniform light emission, characterized in that: The thick-walled light guide structure of the uniformly luminous vehicle lamp includes a light-emitting component and a thick-walled light guide, the thick-walled light guide includes a main body and a concentrator that are connected to each other, an incident surface and a light-emitting surface are arranged at both ends of the main body, the main body is connected to the light-emitting component, and the two sides of the concentrator are arranged corresponding to the light-emitting component and the incident surface, so that the light emitted by the light-emitting component passes through the concentrator and enters the incident surface and then exits through the light-emitting surface; the incident surface includes an incident area, and the incident area includes a plurality of arcuate surfaces connected in sequence, and the plurality of arcuate surfaces are all inclined, and the curvatures of the arcuate surfaces are not exactly the same, and each of the arcuate surfaces is provided with textures.
2. The thick-walled light guide structure of a vehicle lamp with uniform light emission as claimed in claim 1, characterized in that: Leather grains are arranged on both sides of the body.
3. The thick-walled light guide structure of a vehicle lamp with uniform light emission as claimed in claim 1, characterized in that: The light emitting surface is provided with stripes.
4. The thick-walled light guide structure of a vehicle lamp with uniform light emission as claimed in claim 1, characterized in that: The light emitting surface is an arc-shaped curved surface.
5. The thick-walled light guide structure for a vehicle lamp with uniform light emission according to any one of claims 1 to 4, characterized in that: The light-emitting assembly comprises a PCB board and a light-emitting component which are connected to each other. The PCB board is connected to the body, and the light-emitting component is arranged corresponding to the concentrator.
6. The thick-walled light guide structure of a vehicle lamp with uniform light emission as claimed in claim 5, characterized in that: There are multiple light-emitting elements, which are arranged at intervals along the extension direction of the incident surface. There are multiple concentrators, which are not greater than the number of the light-emitting elements.
7. The thick-walled light guide structure for a vehicle lamp with uniform light emission according to any one of claims 1 to 4, characterized in that: The concentrator is a circular concentrator or a special-shaped concentrator.
8. The thick-walled light guide structure for a vehicle lamp with uniform light emission according to any one of claims 1 to 4, characterized in that: The thick-walled light guide is a polymethyl methacrylate thick-walled light guide.
9. A vehicle lamp, characterized in that: The vehicle lamp comprises a bracket, a lamp housing, a lamp shade and a thick-walled light guide structure for a vehicle lamp that emits light uniformly as described in any one of claims 1 to 8, wherein the lamp housing is connected to the lamp shade, and the lamp housing and the lamp shade enclose an installation space, and the bracket and the thick-walled light guide structure for a vehicle lamp that emits light uniformly are both located within the installation space, the bracket is connected to the lamp housing, and the thick-walled light guide is connected to the bracket, a light-emitting area is provided on the lamp shade, and a mounting hole is provided on the bracket, and the body passes through the mounting hole so that the light-emitting surface is arranged corresponding to the light-emitting area.
10. A vehicle, characterized in that: The vehicle comprises a vehicle body and the vehicle lamp as claimed in claim 9, wherein the lamp housing is connected to the vehicle body.