Light-emitting structure, vehicle lamp and vehicle
By combining a light source board, an inner lens, and a light guide, and utilizing the design of reflective grooves and light guide teeth, light is evenly propagated in the inner lens, solving the problem of uneven brightness in flat or slender headlights, achieving a surface light emission effect, and improving the aesthetics and lighting performance of the headlights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-24
AI Technical Summary
Flat or elongated headlights cannot achieve a uniform surface light emission effect when lit, resulting in uneven brightness and affecting aesthetics and lighting performance.
The system employs a combination structure of a light source board, an inner lens, and a light guide. The inner lens has a reflective surface and a reflective groove, while the light guide has a reflective groove and light guide teeth. Through the design of the reflective groove and light guide teeth, light is uniformly propagated in the inner lens and emitted from the exit surface, breaking through the size limitation of the light guide and achieving a surface light emission effect.
This achieves the surface light emission effect of the inner lens, reduces brightness unevenness, and improves the aesthetics and lighting performance of the headlights.
Smart Images
Figure CN224033602U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle lighting technical field, especially relate to a light emitting structure, car light and vehicle. BACKGROUND
[0002] In order to cater to the change of consumer aesthetic concept, the appearance design of car light gradually tends to be flat and slender. In the design of such car light, the combination mode of light guide and transparent thin lens is more common, in this structure, the light guide is arranged on the inner side of the transparent thin lens, the light emitted by the light guide is shot into the transparent thin lens, and then is shot out through the exit surface of the transparent thin lens, so that the car light presents the lighting effect of slender type. However, since the diameter of the light guide is limited, the distribution angle of the light emitted by the light guide is limited, and the transparent thin lens cannot be fully lighted up, the part close to the light guide has high brightness, and vice versa, the brightness is low, which leads to the uneven brightness of the outer side of the transparent thin lens, and the lighting effect of surface light emitting cannot be realized.
[0003] Therefore, the utility model provides a light emitting structure, car light and vehicle to solve or at least alleviate the above technical problems. CONTENT OF UTILITY MODEL
[0004] The main purpose of the utility model is to provide a light emitting structure, car light and vehicle, which aims to solve the technical problem that the flat or slender car light cannot realize the lighting effect of surface light emitting when lighting.
[0005] To achieve the above purpose, the utility model provides a light emitting structure, which comprises:
[0006] A light source plate comprising lamp beads for emitting light;
[0007] An inner lens comprising an incident surface, an exit surface and a reflection surface, the exit surface and the reflection surface are oppositely arranged, the incident surface and the reflection surface are adjacently arranged, at least one reflection area is arranged in the reflection surface, and a plurality of reflection grooves are arranged in the reflection area in an interval;
[0008] A light guide arranged opposite to the incident surface, the light guide comprising a light inlet end and a light guide tooth, the lamp beads are arranged to face the light inlet end, the light guide tooth is arranged on the side of the light guide away from the incident surface, and the light guide tooth is used for reflecting the light entering the light guide to the incident surface;
[0009] The reflection groove is used for reflecting the light to the exit surface.
[0010] In an embodiment, the reflection surface is provided with a plurality of reflection areas, and the plurality of reflection areas are arranged in an interval.
[0011] In an embodiment, the exit surface comprises a plurality of divergent regions, and the divergent regions are provided with optical patterns arranged in an array, the divergent regions are arranged opposite to the reflecting regions, and the divergent regions are arranged one by one corresponding to the reflecting regions.
[0012] In an embodiment, the optical patterns comprise square diffusion patterns, and the square diffusion patterns are used for diffusing the light.
[0013] In an embodiment, the light-emitting structure further comprises a support, and the light guide and the light source plate are both mounted on the support.
[0014] In an embodiment, the light-emitting structure further comprises a decorative ring, the decorative ring is mounted on the support, the inner lens is mounted on the decorative ring, the decorative ring is formed with a hollow region, and the exit surface is arranged in the hollow region.
[0015] In an embodiment, the decorative ring and the inner lens are integrally formed.
[0016] In an embodiment, the light guide is in a long strip shape.
[0017] The utility model also provides a vehicle lamp, including any one of the light-emitting structure in above-mentioned embodiment, still include lamp shell and lamp shade, the light-emitting structure is arranged between the lamp shell with the lamp shade, the exit surface faces the lamp shade.
[0018] The utility model also provides a vehicle, including the vehicle lamp in above-mentioned embodiment.
[0019] According to the technical scheme provided by the utility model, the light-emitting structure comprises a light source plate, an inner lens and a light guide, wherein the light source plate comprises a lamp bead, the lamp bead is used for emitting light; the inner lens comprises an incident surface, an exit surface and a reflecting surface, the exit surface is arranged opposite to the reflecting surface, the incident surface is arranged adjacent to the reflecting surface, at least one reflecting region is arranged in the reflecting surface, and a plurality of spaced reflecting grooves are arranged in the reflecting region; the light guide is arranged opposite to the incident surface, the light guide comprises a light inlet end and a light guide tooth, the lamp bead is arranged to face the light inlet end, the light guide tooth is arranged on a side of the light guide away from the incident surface, the light guide tooth is used for reflecting the light entering the light guide to the incident surface, and the reflecting groove is used for reflecting the light to the exit surface. Through the arrangement, the light emitted by the lamp bead enters the inner lens through the light guide, the light is changed in the propagation path by the reflecting groove after being propagated through the inner lens, the light is emitted to the exit surface, and finally the light is emitted from the exit surface. In this way, the light can be uniformly propagated in the inner lens and then emitted from the exit surface, so that the size limitation of the light guide is broken, the non-uniformity of the light-emitting of the inner lens is reduced, and the lighting effect of the surface light-emitting of the inner lens is realized. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.
[0021] Figure 1 A structural schematic view of a light emitting structure in the background art;
[0022] Figure 2 A structural schematic view of an embodiment of the light emitting structure provided by the present application;
[0023] Figure 3 A structural schematic view of a side of the support facing the decorative ring and the inner lens;
[0024] Figure 4 A structural schematic view of Figure 2 A sectional structural schematic view of A-A in the middle;
[0025] Figure 5 A structural schematic view of Figure 4 An enlarged structural schematic view of B in the middle.
[0026] Explanation of the reference signs:
[0027] 1000, light emitting structure;
[0028] 1, light source plate; 11, light;
[0029] 2, inner lens; 21, incident surface; 22, exit surface; 221, divergence area; 2211, optical pattern; 23, reflecting surface; 231, reflecting area; 2311, reflecting groove;
[0030] 3, light guide; 31, light entry end; 32, light guide tooth;
[0031] 4, support;
[0032] 5, decorative ring.
[0033] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.
[0035] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.
[0036] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0037] With the continuous development and innovation of automobile design concept, consumers' pursuit of automobile appearance is no longer limited to traditional modeling and function, but more attention is paid to the coordination of details and overall aesthetics. As an important part of the appearance of the automobile, the appearance design of the car lamp also follows this trend, gradually showing the characteristics of flatness and elongation. In the process of realizing such flat and elongated car lamp design, the combination of light guide and transparent inner lens becomes a relatively common and effective scheme. For details, please refer to Figure 1 In this scheme, the light guide 3 is arranged at the inner side of the transparent inner lens 2. When the light is emitted from the light guide 3, it will enter the transparent inner lens 2. The light inside the inner lens 2 undergoes a series of refraction and reflection, and finally is emitted from the exit surface of the transparent inner lens 2. Through such design, the car lamp can present an elongated lighting effect.
[0038] However, according to the research of the applicant, it is found that in the actual application of the design scheme of the light guide matched with the transparent inner lens 2, due to the limitation of the diameter of the light guide 3, the distribution angle of the light emitted by the light guide 3 is also limited. Generally, the light emitted by the light guide cannot uniformly cover the entire transparent inner lens 2, and thus the transparent inner lens 2 cannot be fully illuminated. Specifically, the light can be relatively concentrated into and transmitted out of the part close to the light guide 3, and thus the brightness is relatively high; while the light is relatively dispersed and weak in intensity in the part far away from the light guide 3, and thus the brightness is obviously lower. The uneven brightness distribution makes the outer side of the transparent inner lens 2 present obvious light and dark differences, and the ideal surface light emitting illumination effect cannot be achieved. This not only affects the overall aesthetics of the vehicle lamp, but also reduces the illumination performance of the vehicle lamp to a certain extent, which brings certain troubles to the design and use of the vehicle.
[0039] In view of this, the utility model provides a light emitting structure to solve the above problems.
[0040] Please refer to Figures 2 to 4 In an embodiment of the utility model, the light emitting structure 1000 includes a light source plate 1, an inner lens 2 and a light guide 3, wherein the light source plate 1 includes a lamp bead, and the lamp bead is used to emit light 11; the inner lens 2 includes an incident surface 21, an exit surface 22 and a reflecting surface 23, the exit surface 22 is arranged opposite to the reflecting surface 23, the incident surface 21 is arranged adjacent to the reflecting surface 23, at least one reflecting area 231 is arranged in the reflecting surface 23, and a plurality of reflecting grooves 2311 arranged at intervals are arranged in the reflecting area 231; the light guide 3 is arranged opposite to the incident surface 21, and the light guide 3 includes a light inlet end 31 and a light guide tooth 32, the lamp bead is arranged to face the light inlet end 31, the light guide tooth 32 is arranged on the side of the light guide 3 away from the incident surface 21, the light guide tooth 32 is used to reflect the light 11 entering the light guide 3 to the incident surface 21; and the reflecting groove 2311 is used to reflect the light 11 to the exit surface 22.
[0041] Specifically, the reflecting groove 2311 is a groove structure, and the specific shape includes one of a circular groove or a circular-arc-shaped groove. The reflecting groove 2311 can reflect the light 11 entering the inner lens 2, so that the light 11 can be emitted towards the exit surface 22, thereby illuminating the exit surface 22. The reflecting grooves 2311 can be arranged in an array form at intervals in the reflecting area 231, or arranged in a specific shape. By adjusting the distribution density and arrangement mode of the reflecting grooves 2311 in the reflecting area 231, the light emitting shape and brightness of the exit surface 22 can be adjusted, thereby realizing different surface light emitting illumination effects.
[0042] According to the technical scheme provided in the embodiment, the light rays 11 emitted by the lamp beads can enter the light inlet end 31 of the light guide 3 and propagate along the extension direction of the light guide 3, in the process of propagation, the light guide teeth 32 reflect the light rays 11 to the direction of the incident surface 21, the light rays 11 enter the inner lens 2 from the incident surface 21, uniformly propagate in the inner lens 2, and then are emitted to the exit surface 22 under the action of the reflection groove 2311, and finally are emitted from the exit surface 22. Through the arrangement, the light-emitting structure 1000 can break through the size limitation of the light guide 3, reduce the non-uniformity of light emission of the inner lens 2, and thus the lighting effect of the surface light emission of the inner lens 2 is realized.
[0043] Further, in an embodiment of the utility model, the reflection surface 23 is provided with a plurality of reflection areas 231, and the plurality of reflection areas 231 are arranged at intervals. The plurality of reflection areas 231 are arranged as shown in Figure 3 . By arranging the plurality of reflection areas 231, a specific light-emitting shape can be formed in the exit surface 22, so as to improve the light-emitting effect of the exit surface 22.
[0044] Further, please refer to Figure 2 , Figure 4 and Figure 5 , in an embodiment of the utility model, the exit surface 22 comprises a plurality of divergence areas 221, and the divergence areas 221 are provided with optical patterns 2211 arranged in an array, the divergence areas 221 are arranged opposite to the reflection areas 231, and the divergence areas 221 and the reflection areas 231 are arranged one by one. After the light rays 11 enter the inner lens 2, the light rays 11 are reflected by the reflection groove 2311 for the first time, so as to propagate toward the divergence areas 221, and then the light rays 11 are emitted from the exit surface 22 through the refraction of the optical patterns 2211. The light rays 11 emitted from the optical patterns 2211 form a more obvious light pattern in the naked eye of a person, and therefore, the arrangement of the optical patterns 2211 can form a special lighting shape on the exit surface 22. It should be noted that if a certain pattern in the optical patterns 2211 is arranged opposite to the reflection groove 2311, compared with other patterns not arranged opposite to the reflection groove 2311, the brightness of the certain pattern is higher, so that the certain pattern forms a highlight point in appearance, and this phenomenon can cause the optical patterns 2211 to present a “starry sky” light pattern when lighting. By changing the distribution density of the reflection groove 2311 in the reflection area 231, the number and position of the highlight points in the optical patterns 2211 can be adjusted, so as to adjust the specific shape of the “starry sky” light pattern.
[0045] In an embodiment of the utility model, the optical patterns 2211 comprise square diffusion patterns, and the square diffusion patterns are used for diffusing the light rays 11. Please refer to Figure 2 , the square diffusion patterns have the advantage that the light rays 11 can be diffused to multiple directions, so as to improve the uniformity of the propagation of the light rays 11, and at the same time, the regular square pattern can also increase the design sense and aesthetic degree of the vehicle lamp.
[0046] Referring to Figure 2 With Figure 4 In an embodiment of the present application, the light emitting structure 1000 further comprises a bracket 4, and the light guide 3 and the light source plate 1 are both mounted on the bracket 4. Specifically, the end of the light guide 3 has a connecting portion, and the connecting portion is connected with the bracket 4 by screws or buckles. The light source plate 1 is directly connected with the bracket 4 by screws or buckles. The bracket 4 can provide stable physical support for the light guide 3 and the light source plate 1. During the working process of the light emitting structure 1000, when the light guide 3 and the light source plate 1 are subjected to slight vibration from the outside world or expansion and contraction due to changes in ambient temperature, the bracket 4 can prevent the light guide 3 and the light source plate 1 from being displaced or deformed.
[0047] In an embodiment of the present application, the light emitting structure 1000 further comprises a decorative ring 5, the decorative ring 5 is mounted on the bracket 4, and the inner lens 2 is mounted on the decorative ring 5. The decorative ring 5 is formed with a hollow area, and the exit surface 22 is arranged in the hollow area. The decorative ring 5 is used to shield the light guide 3 and the bracket 4 and the like, so as to improve the appearance of the vehicle lamp. The decorative ring 5 can also shield stray light emitted by the light guide 3 or the lamp beads, so as to avoid the phenomenon of light leakage in the vehicle lamp.
[0048] Further, the decorative ring 5 and the inner lens 2 are integrally formed. Specifically, the decorative ring 5 and the inner lens 2 are formed by two-color injection molding. The decorative ring 5 is made of non-transparent material, and the inner lens 2 is made of transparent material. The two are integrally formed and installed synchronously, which not only ensures the connection strength of the two, but also reduces the installation process and improves the accuracy of the installation position of the inner lens 2.
[0049] In an embodiment of the present application, the light guide 3 is in the shape of a long strip. The light guide 3 is arranged in the direction parallel to the incident surface 21, and the light guide 3 is specifically a light guide rod. The long strip-shaped light guide rod realizes efficient transmission of light by the principle of total reflection, and reduces the loss of light energy. The structure can guide the light to be uniformly distributed along the axial direction, avoiding the problems of local over-brightness or over-darkness, and is especially suitable for use in the scene of a through-type tail lamp or a daytime running lamp. At the same time, the integrated design of the long strip-shaped light guide rod reduces the complex components required by the traditional reflective bowl or lens, which can reduce the assembly difficulty, reduce the manufacturing cost while ensuring the light emitting effect.
[0050] The utility model discloses still propose a car light, this car light includes light emitting structure 1000, the specific structure of light emitting structure 1000 refers to the above embodiment, because the car light of this adopts all the technical schemes of above all the embodiments, therefore at least has all the beneficial effects brought by the technical scheme of above described embodiment, here no longer one by one elaboration. Among them, the car light still includes lamp house and lamp shade, and light emitting structure 1000 is set between lamp house and lamp shade, and the exit surface 22 faces the lamp shade. The optical cavity is formed between the lamp shade and the lamp house, and the light emitting structure 1000 is arranged in the optical cavity, so that the lamp shade and the lamp house can protect the light emitting structure 1000.
[0051] The utility model discloses still propose a vehicle, including above-mentioned car light. Light emitting structure 1000 can be set in one or more of the daytime running light, the front position light, the front turn signal, the rear position light, the brake light and the rear turn signal of vehicle, to realize uniform light emitting effect, improve the overall appearance of vehicle.
[0052] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and the equivalent structure transformation of the utility model specification and the attached drawing contents under the technical concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.
Claims
1. A light emitting structure, characterized by The light-emitting structure comprises: a light source plate comprising a lamp bead for emitting light; an inner lens comprising an incident surface, an emitting surface and a reflecting surface, the emitting surface is arranged opposite to the reflecting surface, the incident surface is arranged adjacent to the reflecting surface, at least one reflecting area is arranged in the reflecting surface, and a plurality of reflecting grooves are arranged in the reflecting area in an interval manner; a light guide arranged opposite to the incident surface, the light guide comprises a light-in end and a light guide tooth, the lamp bead is arranged facing the light-in end, and the light guide tooth is arranged on a side of the light guide away from the incident surface, the light guide tooth is used for reflecting the light entering the light guide to the incident surface; the reflecting grooves are used for reflecting the light to the emitting surface.
2. The light emitting structure of claim 1, wherein, The reflecting surface is provided with a plurality of reflecting areas arranged in an interval manner.
3. The light emitting structure of claim 2, wherein, The emitting surface comprises a plurality of diverging areas, the diverging areas are provided with optical patterns arranged in an array manner, the diverging areas are arranged opposite to the reflecting areas, and the diverging areas are arranged one by one corresponding to the reflecting areas.
4. The light emitting structure of claim 3, wherein, The optical patterns comprise square diffusion patterns, and the square diffusion patterns are used for diffusing the light.
5. The light emitting structure of claim 1, wherein, The light-emitting structure further comprises a support, and the light guide and the light source plate are mounted on the support.
6. The light emitting structure of claim 5, wherein, The light-emitting structure further comprises a decorative ring, the decorative ring is mounted on the support, the inner lens is mounted on the decorative ring, the decorative ring is formed with a hollow area, and the emitting surface is arranged in the hollow area.
7. The light emitting structure of claim 6, wherein, The decorative ring and the inner lens are an integral molding.
8. The light emitting structure of claim 1, wherein, The light guide is in a shape of a long strip.
9. A vehicle lamp characterized by The light-emitting structure comprises the light-emitting structure according to any one of claims 1 to 8, a lamp shell and a lamp shade, the light-emitting structure is arranged between the lamp shell and the lamp shade, and the emitting surface faces the lamp shade.
10. A vehicle characterized by comprising: The vehicle lamp comprises the vehicle lamp according to claim 9.