Dual light source light guide and thick walled component combination
By combining a dual-light-source light guide with a thick-walled component, the problems of low light efficiency and uniform color temperature in traditional light guide and thick-walled component combinations are solved. Natural color temperature transition and light uniformity are achieved, which can adapt to complex curvature designs and reduce space requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional light guide and thick-walled component combination structures have low light efficiency, single color temperature and complex structure, which cannot meet the dynamic light color change and space requirements.
The system employs a combination structure of dual-source light guide and thick-walled component. White light and yellow light sources are respectively set at both ends of the light guide. Combined with the refraction and diffusion characteristics of the Y-shaped thick-walled component and the white light source at the bottom of the thick-walled component, a three-dimensional supplementary lighting mechanism is formed. The surface roughness is optimized through arc design and diffusion texture to achieve natural color temperature transition and light uniformity.
It achieves a natural and smooth color temperature transition, eliminates light interference fringes, improves light uniformity, reduces assembly parts and space requirements, and adapts to complex curvature designs.
Smart Images

Figure CN224551352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to a combination structure of dual light source light guide and thick-walled component. Background Technology
[0002] With the rapid development of modern lighting technology, the combination structure of light guides and thick-walled components has been widely used in automotive lighting, decorative lighting, and other fields. Traditional light guide lighting systems mostly use a single monochromatic light source combined with a single light guide structure to achieve linear light emission. However, this type of design suffers from problems such as low luminous efficiency and a single color temperature. Especially in scenarios requiring dynamic color changes, existing solutions often require adding independent light source modules to achieve dual-color output, resulting in complex structural stacking and significantly increasing assembly difficulty and material costs. In addition, existing combined optical structures occupy a large amount of space, which cannot meet the growing space requirements of automobiles.
[0003] Therefore, it is necessary to design a combined structure of dual-source light guide and thick-walled component to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a combined structure of dual-light source light guide and thick-walled component.
[0005] The technical solution of this utility model is: a combination structure of dual light source light guide and thick-walled component, including an LED module, a thick-walled component and a light guide arranged sequentially from bottom to top; the light guide is snapped into the thick-walled component, and both ends of the light guide extend out of the thick-walled component and extend toward the LED module respectively; the two ends of the LED module are respectively provided with a first light source and a second light source corresponding to the two ends of the light guide, one of the first light source and the second light source is white light and the other is yellow light; a third light source corresponding to the bottom of the thick-walled component is evenly distributed on the LED module; the third light source is white light.
[0006] The thick-walled component has a Y-shaped cross-section, and the optical guide is snapped into a slot at the top of the thick-walled component.
[0007] The LED module, thick-walled component, and light guide are all arc-shaped.
[0008] The outer wall of the thick-walled component is provided with a diffused texture.
[0009] The above-mentioned technical solution has the following beneficial effects: (1) The present invention sets up white light and yellow light dual light sources at both ends of the light guide, and combines the refraction and diffusion characteristics of the Y-shaped thick wall component to achieve a natural and smooth color temperature transition; when the light source is dynamically switched, the coupling path between the light guide and the thick wall component can eliminate light interference fringes, solve the technical bottleneck of uneven light mixing of traditional dual light sources, and meet the color temperature switching needs of multiple scenarios such as turn signals and daytime running lights.
[0010] (2) The light guide of this utility model extends to the LED module at both ends to form a bidirectional incident structure. Combined with the third white light source at the bottom of the thick-walled part, a three-dimensional supplementary light mechanism of "double-end incident + bottom supplement" is formed, which effectively eliminates the dark area at the edge of the thick-walled part. At the same time, the diffused texture improves the uniformity of the light output effect by optimizing the surface roughness distribution.
[0011] (3) The arc-shaped light guide and thick-walled component of this utility model adopt an integrated snap-fit design, abandoning the traditional multi-layer stacked light guide plate structure, which not only reduces the number of assembly parts, but also reduces space requirements.
[0012] (4) The synchronous arc design of the LED module, thick-walled component and light guide of this utility model can match the complex curvature requirements of automotive lamps, irregular decorative lamps, etc., break through the limitation of planar light guide structure on shape design, and at the same time ensure the consistency of curved light path refraction. Attached Figure Description
[0013] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a cross-sectional view of the present invention.
[0016] The labels in the attached diagram are:
[0017] LED module 1, thick-walled component 2, light guide 3, first light source 4, second light source 5, third light source 6, diffusion texture 7. Detailed Implementation
[0018] (Example 1)
[0019] See Figure 1 and Figure 2 This embodiment of a dual-light source light guide and thick-walled component combination structure includes an LED module 1, a thick-walled component 2, and a light guide 3 arranged sequentially from bottom to top; the light guide 3 is snapped into the thick-walled component 2, and both ends of the light guide 3 extend out of the thick-walled component 2 and extend toward the LED module 1 respectively; the two ends of the LED module 1 are respectively provided with a first light source 4 and a second light source 5 corresponding to the two ends of the light guide 3, one of the first light source 4 and the other of the second light source 5 is white light, and the other is yellow light; a third light source 6 corresponding to the bottom of the thick-walled component 2 is evenly distributed on the LED module 1; the third light source 6 is white light.
[0020] Furthermore, the cross-section of the thick-walled component 2 is Y-shaped, and the light guide 3 is snapped into the slot at the top of the thick-walled component 2.
[0021] Furthermore, the LED module 1, the thick-walled component 2, and the light guide 3 are all arc-shaped.
[0022] Furthermore, the outer wall of the thick-walled component 2 is provided with a diffused texture 7.
[0023] The specific application of the dual-light-source light guide and thick-walled component combination structure in this embodiment:
[0024] When only the white light source at the light input end of the thick-walled component 2 is lit, the brightness can be adjusted to achieve the first state of the signal light.
[0025] When the white light source at the light-inlet end of the thick-walled component 2 and the white light source at the light-inlet end of the light guide 3 are lit simultaneously, this state is the second form of the signal light.
[0026] When only the white light source on one side of the light guide 3 is lit, this state is the third form of the signal light.
[0027] When the thick-walled component 2 is lit as a signal light, the daytime running lights, position lights, and turn signals can be lit simultaneously by repeatedly turning the yellow light at the light guide 3 on and off.
[0028] In addition, by controlling the brightness and lighting sequence of the light source on LED module 1, dynamic flowing water and breathing effects can also be achieved.
[0029] In this embodiment, the dual-light source light guide and thick-walled component combination structure sets white light and yellow light dual light sources at both ends of the light guide 3, and combines the refraction and diffusion characteristics of the Y-shaped thick-walled component 2 to achieve a natural and smooth color temperature transition. When the light source is dynamically switched, the coupling path between the light guide 3 and the thick-walled component 2 can eliminate light interference fringes, solve the technical bottleneck of uneven light mixing in traditional dual light sources, and meet the color temperature switching requirements of multiple scenarios such as turn signals and daytime running lights.
[0030] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A combined structure of a dual-source light guide and a thick-walled component, characterized in that: The device includes an LED module (1), a thick-walled component (2), and a light guide (3) arranged sequentially from bottom to top. The light guide (3) is snapped into the thick-walled component (2), and both ends of the light guide (3) extend out of the thick-walled component (2) and extend toward the LED module (1). The two ends of the LED module (1) are respectively provided with a first light source (4) and a second light source (5) corresponding to the two ends of the light guide (3). One of the first light source (4) and the second light source (5) is white light, and the other is yellow light. The LED module (1) is evenly distributed with a third light source (6) corresponding to the bottom of the thick-walled component (2). The third light source (6) is white light.
2. The dual-source light guide and thick-walled component combination structure according to claim 1, characterized in that: The cross-section of the thick-walled component (2) is Y-shaped, and the light guide (3) is snapped into the slot at the top of the thick-walled component (2).
3. The dual-source light guide and thick-walled component combination structure according to claim 1, characterized in that: The LED module (1), the thick-walled component (2), and the light guide (3) are all arc-shaped.
4. The dual-source light guide and thick-walled component combination structure according to claim 1, characterized in that: The outer wall of the thick-walled component (2) is provided with a diffused texture (7).