Light guide part, vehicle lamp assembly and vehicle
By introducing light guides into the headlight design, and utilizing the multiple convex and concave surfaces of the light-incident and light-out structures to refract and scatter light, the problem of uneven headlight illumination is solved, improving light utilization and perception quality.
Patent Information
- Application Number
- CN202520279967.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing headlight designs suffer from noticeable pixelation, uneven illumination, and poor perceived quality.
The light guide design includes a light guide body, an input structure, and an output structure. The input and output structures form multiple convex and concave surfaces on the input and output sides of the light guide body, respectively. By refracting and scattering light, the light utilization rate and scattering efficiency are improved, and light concentration is avoided.
It achieves uniform lighting, improves perceived quality and user experience, and prevents the appearance of grainy lighting.
Smart Images
Figure CN223677609U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of light guide, especially relates to a light guide, vehicle lamp assembly and vehicle. BACKGROUND
[0002] With the development of automobile lamp technology, personalized modeling and brand recognition have become more and more important, and the flattening of the vehicle lamp has become the trend of the next generation of vehicle lamp design. In order to cope with this trend, the vehicle lamp design is often compressed and inclined, which brings obvious lighting grain performance, uneven lighting and poor perception quality. SUMMARY
[0003] The present application provides a light guide, vehicle lamp assembly and vehicle to solve the technical problems of obvious lighting grain performance, uneven lighting and poor perception quality in the prior art.
[0004] In a first aspect, the embodiments of the present application provide a light guide applied to a vehicle, which mainly comprises a light guide body, a light-in structure and a light-out structure. The light guide body has opposite light-in and light-out sides; the light-in structure is columnar, and the side of the light-in structure forms a plurality of light-in convex surfaces; a plurality of the light-in structures are formed in groups on the light-in side of the light guide body; the light-out structure is columnar, and the side of the light-out structure forms a plurality of light-out convex surfaces; and a plurality of the light-out structures are formed in groups on the light-out side of the light guide body.
[0005] As an optional implementation, the side of the light-in structure comprises two adjacent light-in convex parts and two adjacent light-in concave parts, the light-in convex part has the light-in convex surface, and the light-in concave part has a light-in concave surface; the light-in structure protrudes from the light guide body, and the protruding distances of two adjacent light-in structures are different; in the two adjacent light-in structures, the light-in convex part of the light-in structure protruding more protrudes into the light-in concave part of the light-in structure protruding less.
[0006] As an optional implementation, in the height direction, the light-in side of the light guide body forms a first inclined structure, and the greater the inclination angle of the first inclined structure, the higher the height of the light-in structure.
[0007] As an optional implementation, a plurality of the light-in structures are arrayed to form a light-in structure group, and the light-in structure group is step-shaped in the height direction to form the first inclined structure.
[0008] As an optional implementation, the side of the light-out structure comprises two adjacent light-out convex parts and two adjacent light-out concave parts, the light-out convex part has the light-out convex surface, and the light-out concave part has the light-out concave surface; the light-out structure protrudes from the light guide body, the protrusion distances of the two adjacent light-out structures are different; the light-out convex part of the light-out structure protruding more is inserted into the light-out concave part of the light-out structure protruding less.
[0009] As an optional implementation, in the height direction, the light-out side of the light guide body forms a second inclined structure, the higher the height of the light-in structure, the greater the inclination angle of the second inclined structure.
[0010] As an optional implementation, the plurality of light-out structures are arranged in an array to form a light-out structure group, and the light-out structure group is arranged in a stepped manner in the height direction to form the second inclined structure.
[0011] As an optional implementation, each light-in convex surface is curved to form a light-in arch, and each light-out convex surface is curved to form a light-out arch, and the heights of the light-in arch and the light-out arch are greater than or equal to 0.2 mm and less than or equal to 0.6 mm.
[0012] In a second aspect, the embodiments of the present application provide a vehicle lamp assembly, which mainly comprises a reflector bowl, a light source, and the light guide member according to any one of the preceding embodiments; the light source is installed in the reflector bowl; and the light guide member is installed in the reflector bowl and arranged on the light-out side of the light source.
[0013] In a third aspect, the embodiments of the present application provide a vehicle comprising the vehicle lamp assembly according to the preceding embodiments.
[0014] The present application provides a light guide member, a vehicle lamp assembly, and a vehicle, and the embodiments of the present application provide the technical solutions at least with the following beneficial effects:
[0015] The light rays are refracted by the plurality of light-in convex surfaces of the light-in structure and then enter the light guide body, so as to improve the utilization rate of the light rays; and the light rays are refracted by the plurality of light-out convex surfaces of the light-out structure after propagating in the light guide body and then exit, so as to improve the scattering efficiency of the light rays, avoid light ray aggregation, prevent the appearance of a particle lighting feeling, realize uniform lighting, and improve the perception quality and user experience.
[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above aspects and advantages of the present application and / or additional aspects and advantages will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0018] Figure 1 A front view of a vehicle lamp assembly according to an embodiment of the present application;
[0019] Figure 2 A rear view of a vehicle lamp assembly according to an embodiment of the present application;
[0020] Figure 3 A longitudinal section of a vehicle lamp assembly according to an embodiment of the present application;
[0021] Figure 4 A frame structure of a vehicle lamp assembly according to an embodiment of the present application;
[0022] Figure 5 A light-out structure of a vehicle lamp assembly according to an embodiment of the present application;
[0023] Figure 6 A light-in structure of a vehicle lamp assembly according to an embodiment of the present application;
[0024] Figure 7 An enlarged view of a light-in structure of a vehicle lamp assembly according to an embodiment of the present application;
[0025] Figure 8 A light-out structure of a vehicle lamp assembly according to an embodiment of the present application;
[0026] Figure 9 An enlarged view of a light-out structure of a vehicle lamp assembly according to an embodiment of the present application.
[0027] Reference signs and corresponding explanations:
[0028] 1: light guide main body;
[0029] 2: light-in structure; 21: light-in convex surface; 22: light-in arch height;
[0030] 3: light-out structure; 31: light-out convex surface; 32: light-out arch height;
[0031] 4: reflection bowl;
[0032] 5: light source. DETAILED DESCRIPTION
[0033] The present application will be described in detail below, with examples of embodiments of the present application shown in the accompanying drawings, in which the same or similar components or components having the same or similar functions are denoted throughout by the same or similar reference numerals. Also, if a detailed description of known technology is unnecessary for the features of the present application shown, it is omitted. The embodiments described below by reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only, and cannot be interpreted as limiting the present application.
[0034] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, integers, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, elements, components, and / or groups thereof. The term “and / or” as used herein includes all or any units and all combinations thereof of one or more associated listed items.
[0035] like Figure 1 , 3 As shown in Figure 9, this application provides a light guide for use in a vehicle. The light guide mainly includes a light guide body 1, a light-incident structure 2, and a light-exiting structure 3. The light guide body 1 has opposing light-incident and light-exiting sides; the light-incident structure 2 is columnar, and a plurality of light-incident convex surfaces 21 are formed on the side of the light-incident structure 2, and the plurality of light-incident structures 2 are grouped on the light-incident side of the light guide body 1; the light-exiting structure 3 is columnar, and a plurality of light-exiting convex surfaces 31 are formed on the side of the light-exiting structure 3, and the plurality of light-exiting structures 3 are grouped on the light-exiting side of the light guide body 1.
[0036] In this embodiment, the light guide is plate-shaped. In some embodiments, the light guide can be appropriately bent. The light guide body 1, the light-incident structure 2, and the light-exiting structure 3 are integrally formed. Light rays are refracted by multiple light-incident convex surfaces 21 of the light-incident structure 2 and then enter the light guide body 1 to improve the utilization rate of light rays; after propagating through the light guide body 1, the light rays are refracted by multiple light-exiting convex surfaces 31 of the light-exiting structure 3 and then emitted, improving the light scattering efficiency, avoiding light concentration, preventing the appearance of light particles, achieving uniform lighting, and improving the perception quality and user experience.
[0037] As an optional implementation, the side of the light-incident structure 2 includes two adjacent light-incident protrusions and two adjacent light-incident recesses. The light-incident protrusions have a light-incident convex surface 21, and the light-incident recesses have a light-incident concave surface. The light-incident structure 2 protrudes from the light guide body 1, and the protrusion distances of the two adjacent light-incident structures 2 are different. Among the two adjacent light-incident structures 2, the light-incident protrusion of the light-incident structure 2 with more protrusions extends into the light-incident recess of the light-incident structure 2 with fewer protrusions.
[0038] Based on the foregoing embodiments, in this embodiment, the light-incident structure 2 includes four sides (two light-incident convex surfaces 21 and two light-incident concave surfaces) and one end surface (light-incident end surface); wherein, the light-incident end surface is a convex surface. The two light-incident convex surfaces 21 are adjacent and have different receiving angles, which is used for light to enter from multiple angles, so as to make full use of the light.
[0039] The shape and size of the cross section of all light-in structures 2 perpendicular to the axial direction are the same. For the convenience of description, it is assumed that two adjacent light-in structures 2 are a first light-in structure 2 and a second light-in structure 2. Because the protruding distances of the two adjacent light-in structures 2 are different, the light-in protrusions of the light-in structure 2 that protrude more extend into the light-in recesses of the light-in structure 2 that protrude less, so that the two adjacent light-in structures 2 are close to each other or even abut, making the light-in structures 2 more compact and improving the space utilization.
[0040] In the embodiments of the present application, adjacent includes adjacent in any direction, for example, left and right adjacent and up and down adjacent.
[0041] In some embodiments, in order to further improve the utilization of light, the axial directions of the plurality of light-in structures 2 intersect, that is, the plurality of light-in structures 2 protrude in different directions, and the light-in end surface and the two light-in protrusions 21 are arranged at different positions and angles for multi-angle light shooting.
[0042] In some embodiments, the two light-in protrusions 21 of the light-in structure 2 are oppositely arranged.
[0043] As an optional implementation, in the height direction, the light-in side of the light guide body 1 forms a first inclined structure, and the greater the inclination angle of the first inclined structure, the higher the height of the light-in structure 2.
[0044] By using the above scheme, a larger light receiving area can be formed on the light-in side of the light guide body 1, and the utilization of light can be improved.
[0045] As an optional implementation, the plurality of light-in structures 2 are arranged in an array to form a light-in structure 2 group, and the light-in structure 2 group is arranged in a stepped manner in the height direction to form a first inclined structure.
[0046] By using the above scheme, a multi-layer structure is formed on the light-in side of the light guide body 1, and light can be shot from different angles.
[0047] As an optional implementation, the side of the light-out structure 3 includes two adjacent light-out protrusions and two adjacent light-out recesses, the light-out protrusion has a light-out protrusion surface 31, and the light-out recess has a light-out recess surface; the light-out structure 3 protrudes from the light guide body 1, the protruding distances of the two adjacent light-out structures 3 are different, and the light-out protrusion of the light-out structure 3 that protrudes more extends into the light-out recess of the light-out structure 3 that protrudes less.
[0048] Based on the foregoing embodiments, in the present embodiment, the light-out structure 3 includes four side surfaces (two light-out protrusion surfaces 31 and two light-out recess surfaces) and one end surface (a light-out end surface); wherein the light-out end surface is a convex surface. The two light-out protrusion surfaces 31 are adjacent and have different light-out angles, for multi-angle light diffusion, achieving uniform lighting.
[0049] All the light-out structures 3 have the same shape and size in the cross section perpendicular to the axial direction. For the convenience of description, it is assumed that two adjacent light-out structures 3 are a first light-out structure 3 and a second light-out structure 3. Due to the different convex distances of the two adjacent light-out structures 3, the light-out convex part of the first light-out structure 3, which is more convex, extends into the light-out concave part of the second light-out structure 3, which is less convex, so that the two adjacent light-out structures 3 are close to each other or even abut, making the space more compact and improving the space utilization.
[0050] In order to ensure the consistency of light diffusion, the axial directions of all the light-out structures 3 are the same, that is, the convex directions of all the light-out structures 3 are the same.
[0051] In some embodiments, the two light-out convex surfaces 31 of the light-out structure 3 are oppositely arranged.
[0052] As an optional implementation, in the height direction, the light-out side of the light guide body 1 forms a second inclined structure, and the greater the inclination angle of the second inclined structure, the higher the height of the light-in structure 2.
[0053] By using the above scheme, the irradiation range of uniform lighting can be expanded, and the perception quality and user experience can be improved.
[0054] As an optional implementation, the plurality of light-out structures 3 are arranged in an array to form a light-out structure 3 group, and the light-out structure 3 group is arranged in a stepped manner in the height direction to form a second inclined structure.
[0055] By using the above scheme, a multi-layer structure is formed on the light-out side of the light guide body 1, a larger lighting area is formed, and the non-uniform problem existing when a narrow and inclined car lamp is lit is solved.
[0056] As an optional implementation, each light-in convex surface 21 is curved to form a light-in arch 22, each light-out convex surface 31 is curved to form a light-out arch 32, and the height of the light-in arch 22 and the light-out arch 32 is greater than or equal to 0.2 mm and less than or equal to 0.6 mm.
[0057] In specific embodiments, the light-in structure 2 includes a light-in end surface and two light-in convex surfaces 21, one of which protrudes to the right and one of which protrudes downward. The light-out structure 3 includes a light-out end surface and two light-out convex surfaces 31, one of which protrudes to the right and one of which protrudes upward. Part of the light is incident along the normal direction of the light-in end surface and is emitted from the normal direction of the light-out end surface, which can meet the requirements of the regulations for light distribution. The two light-in convex surfaces 21 can refract the light to improve the utilization rate of the light, and the two light-out convex surfaces 31 can refract the light to improve the light-out efficiency in the vertical and horizontal directions.
[0058] Adjusting the corresponding light-entrance arch height 22 can achieve the refraction ability in the vertical direction and the left-right direction, improve the collection efficiency of parallel light, and achieve as many uniform light rays as possible entering the light guide main body 1.
[0059] Adjusting the corresponding light-entrance arch height 22 can achieve the refraction ability in the vertical direction and the left-right direction, improve the collection efficiency of parallel light, and achieve as many uniform light rays as possible entering the light guide main body 1.
[0060] In some embodiments, when the light-entrance arch height 22 and the light-exit arch height 32 are 0.4 mm, the scattering and refraction efficiency of light is the highest, and the lighting effect is uniform.
[0061] In some embodiments, the thickness of the light guide is greater than or equal to 15 mm and less than or equal to 25 mm. Preferably, the thickness of the light guide is 20 mm, which can greatly reduce the thickness of the light guide, achieve lightweight design requirements, shorten the injection molding cycle, and improve production efficiency.
[0062] In some embodiments, the light-entrance structure 2 and the light-exit structure 3 have corresponding arch heights, so that the cross-sectional area in the vertical axial direction is approximately square.
[0063] The shape, number, position, size, and other characteristics of the light-entrance convex surface 21 and the light-exit convex surface 31 can be adjusted according to actual conditions.
[0064] As shown in Figures 1-9 Based on the same inventive concept, the embodiments of the present application provide a vehicle lamp assembly, which comprises a reflecting bowl 4, a light source 5, and a light guide according to any one of the preceding embodiments; the light source 5 is installed on the reflecting bowl 4; and the light guide is installed on the reflecting bowl 4 and arranged on the light-exit side of the light source 5.
[0065] Based on the preceding embodiments, in the present embodiment, the light source 5 is installed on a PCB board, and the PCB board and the light guide are detachably connected with the reflecting bowl 4. The light source 5 can be an LED, which can emit white light or amber light to realize the functions of a position lamp, a daytime running lamp, and a turn signal lamp. The reflecting bowl 4 is coated with an aluminum layer to reflect and concentrate the light emitted by the light source 5, forming parallel light to enter the light guide. The light is refracted by the multiple light-entrance convex surfaces 21 of the light-entrance structure 2 and then enters the light guide main body 1 to improve the utilization rate of the light; the light propagates in the light guide main body 1 and is then refracted by the multiple light-exit convex surfaces 31 of the light-exit structure 3 and then exits, improving the light scattering efficiency and avoiding light concentration to prevent the appearance of a particle-like lighting effect, achieving uniform lighting, and improving the perception quality and user experience.
[0066] Based on the same inventive concept, the embodiments of the present application provide a vehicle comprising the vehicle lamp assembly according to the preceding embodiments.
[0067] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0068] The terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0069] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0070] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0071] The above is only part of the embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be regarded as the protection scope of the present application.
Claims
1. A light guide for use in a vehicle, the light guide comprising: Comprising: a light guide body (1) having opposite light-incoming side and light-outgoing side; light-incoming structures (2) in columnar shape, side portions of the light-incoming structures (2) forming a plurality of light-incoming convex surfaces (21), a plurality of the light-incoming structures (2) being formed in groups on the light-incoming side of the light guide body (1); light-outgoing structures (3) in columnar shape, side portions of the light-outgoing structures (3) forming a plurality of light-outgoing convex surfaces (31), a plurality of the light-outgoing structures (3) being formed in groups on the light-outgoing side of the light guide body (1).
2. The light guide according to claim 1, wherein: side portions of the light-incoming structures (2) include two adjacent light-incoming convex portions having the light-incoming convex surfaces (21) and two adjacent light-incoming concave portions having light-incoming concave surfaces; the light-incoming structures (2) protrude from the light guide body (1), adjacent two of the light-incoming structures (2) having different protruding distances; light-incoming convex portions of the light-incoming structure (2) protruding more are inserted into light-incoming concave portions of the light-incoming structure (2) protruding less.
3. The light guide according to claim 2, wherein: in a height direction, the light-incoming side of the light guide body (1) forms a first inclined structure, the first inclined structure having a greater inclination angle, the light-incoming structures (2) having a greater height.
4. The light guide according to claim 3, wherein: a plurality of the light-incoming structures (2) are arranged in an array to form a group of light-incoming structures (2), the group of light-incoming structures (2) being arranged in a stepped manner in the height direction to form the first inclined structure.
5. The light guide according to claim 1, wherein: side portions of the light-outgoing structures (3) include two adjacent light-outgoing convex portions having the light-outgoing convex surfaces (31) and two adjacent light-outgoing concave portions having light-outgoing concave surfaces; the light-outgoing structures (3) protrude from the light guide body (1), adjacent two of the light-outgoing structures (3) having different protruding distances; light-outgoing convex portions of the light-outgoing structure (3) protruding more are inserted into light-outgoing concave portions of the light-outgoing structure (3) protruding less.
6. The light guide according to claim 5, wherein: in a height direction, the light-outgoing side of the light guide body (1) forms a second inclined structure, the second inclined structure having a greater inclination angle, the light-incoming structures (2) having a greater height.
7. The light guide according to claim 6, wherein: a plurality of the light-outgoing structures (3) are arranged in an array to form a group of light-outgoing structures (3), the group of light-outgoing structures (3) being arranged in a stepped manner in the height direction to form the second inclined structure.
8. The light guide according to any one of claims 1-7, wherein: each of the light-incoming convex surfaces (21) is curved to form a light-incoming arch height (22); each of the light-outgoing convex surfaces (31) is curved to form a light-outgoing arch height (32); the light-incoming arch height (22) and the light-outgoing arch height (32) have a height greater than or equal to 0.2 mm and less than or equal to 0.6 mm.
9. A vehicle lamp assembly characterized by, Further comprising: a reflector bowl (4); a light source (5) mounted to said reflector bowl (4); a light guide as claimed in any of claims 1-8 mounted to said reflector bowl (4) and arranged on the light exit side of said light source (5).
10. A vehicle characterized by comprising: comprising: a vehicle lamp assembly as claimed in claim 9.