Vehicle lamp optical system and corner lamp assembly using same
By designing the light source on the side facade of the corner lamp reflector and combining it with optical microstructures and decorative ring light outlets, the light path is optimized, solving the problems of stray light and appearance defects in the corner lamp structure, and reducing manufacturing costs and mold difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-12
AI Technical Summary
Existing corner lamp structures have complex optical designs within a limited space, leading to stray light generation, appearance defects, and high manufacturing costs.
The light source is located on the side facade of the reflector, using low-cost materials, combined with optical microstructures and decorative ring light outlets to optimize light path, reduce reflective surface partitioning, and decrease dependence on the reflector.
This achieves more concentrated and uniform light output, reduces manufacturing costs, and minimizes mold manufacturing difficulties and appearance defects.
Smart Images
Figure CN224229791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to an automotive lighting optical system and a cornering light assembly using the same. Background Technology
[0002] Corner lights are lights that provide auxiliary lighting for curves when road lighting conditions are insufficient, ensuring driving safety. In order to make cars safer during driving, more and more OEMs are requiring car lights to include corner light functionality.
[0003] In increasingly complex headlights, the space for lamp structure is becoming increasingly limited, making the space for corner lights, originally intended for auxiliary lighting, even more scarce. This places higher demands on the optical and structural design of corner lights. Currently, commonly used corner light reflector solutions mostly employ a reflector structure with LEDs placed horizontally and vertically, and a mesh-like partition. Examples include, but are not limited to, the automotive lamp assembly disclosed in announcement number CN222278307U. For this type of headlight structure, due to the high power of the corner light LEDs, to avoid the risk of LEDs burning the reflector, a light-blocking structure is usually added near the LEDs, or the reflector uses high-temperature PC-HT material to prevent unnecessary light from affecting the reflector. To meet the requirements of regulations and OEMs for road lighting performance, this type of structure not only requires a large opening space, but the reflector surface also needs to be partitioned into a mesh to optimize light flow. However, each additional partition adds a step to the reflector surface, which in turn generates a lot of unnecessary light, leading to stray light. At the same time, too many partitions on the reflector surface can easily cause appearance defects such as flow marks and cavitation.
[0004] Therefore, given the problems with the existing corner light structure, further optimization of its structure is still needed. Utility Model Content
[0005] The primary objective of this invention is to provide a vehicle lighting optical system to address the technical problem of optimizing its overall structure.
[0006] The second objective of this invention is to provide a corner light assembly to solve the technical problem of optimizing its overall structure.
[0007] The vehicle lighting optical system of this utility model is implemented as follows:
[0008] An automotive lighting optical system includes: a reflector, and a circuit board and trim ring configured with a light source that mate with the reflector; wherein...
[0009] The reflector has a reflective cavity, which includes a main body and a pair of sidewalls located on both sides of the main body.
[0010] The circuit board is fixed to one side end face of the main body of the reflector cavity and forms an angle α with the X-axis of the vehicle coordinate system. The angle α is between 0° and 45° so that the light source is located on the side face of the reflector; and
[0011] The decorative ring is provided with a light outlet suitable for the light emitted by the light source to be emitted.
[0012] In an optional embodiment of this utility model, the reflector has a connecting part that is outwardly turned relative to the main body of the reflector cavity on one side end face;
[0013] The circuit board is fixedly connected to the connector.
[0014] In an optional embodiment of this utility model, the connecting part is pre-set with a connecting post for fixing the circuit board.
[0015] In an optional embodiment of this invention, the circuit board is adapted to be riveted and fixed to the connecting post.
[0016] In an optional embodiment of this utility model, the main body of the reflective cavity has an arc-shaped wall surface along a direction perpendicular to its extension toward the side wall of the reflective cavity, and the light source is offset to the side of the center of the arc-shaped surface facing the connecting part.
[0017] In an optional embodiment of this invention, the light source is disposed in the middle region of the wall surface of the main body of the reflective cavity extending toward the sidewalls of a pair of reflective cavities.
[0018] In an optional embodiment of this invention, optical microstructures are designed on the sidewalls of each pair of reflecting cavities.
[0019] In an optional embodiment of this utility model, the reflector is further provided with at least two fastening grooves on the side wall outside the reflective cavity for engaging the decorative ring, and the decorative ring is provided with a pair of snap-fit ears for engaging with at least two of the fastening grooves.
[0020] In an optional embodiment of this invention, the main body of the reflective cavity is provided with a reflective surface that is divided into strip-shaped sections.
[0021] The corner light assembly of this utility model is implemented as follows:
[0022] A cornering light assembly, comprising: the aforementioned vehicle lighting optical system.
[0023] By adopting the above technical solution, this utility model has the following beneficial effects: The automotive lighting optical system and the corner lamp assembly using it, by designing the light source to be located on the side surface of the reflector, can optimize the light path, making it more concentrated and uniform, avoiding stray light problems. The reflector can be made of low-cost materials without the need for a light-blocking structure or high-temperature resistant materials, thereby reducing the overall manufacturing cost of the automotive lighting optical system. On the other hand, it can also effectively reduce the dependence on the reflective surface of the reflector, allowing it to optimize the light pattern with fewer strip partitions and in conjunction with the light outlet shape of the trim ring. It eliminates the need for mesh-segmented cutting of the reflective surface, further reducing optical surface steps and thus reducing the difficulty of mold manufacturing. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of the vehicle lighting optical system of this utility model;
[0025] Figure 2 This is a first-view exploded structural diagram of the vehicle lighting optical system of this utility model;
[0026] Figure 3 This is a second-view exploded structural diagram of the vehicle lighting optical system of this utility model;
[0027] Figure 4 This is a first-view structural diagram of the reflector of the vehicle lighting optical system of this utility model;
[0028] Figure 5 This is a schematic diagram of the second-view structure of the reflector of the vehicle lighting optical system of this utility model;
[0029] Figure 6 This is a schematic diagram of the light beam of the vehicle headlight optical system of this utility model;
[0030] Figure 7 This is a schematic diagram showing the layout of the light source and the main body of the reflective cavity of the automotive lighting optical system of this utility model.
[0031] In the figure: 1. Reflector, 11. Main body of the reflection cavity, 12. Side wall of the reflection cavity, 13. Connecting part, 14. Connecting post, 15. Fastening groove, 16. Reflecting surface, 17. Optical microstructure, 21. Circuit board, 22. Light source, 3. Decorative ring, 31. Snap-fit ear, 32. Light outlet. Detailed Implementation
[0032] 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.
[0033] Example 1:
[0034] Please see Figures 1 to 7As shown, this embodiment provides a vehicle lighting optical system, including: a reflector 1, and a circuit board 21 and a trim ring 3 configured with a light source 22 that are coupled to the reflector 1.
[0035] Next, in detail, generally speaking, the reflector 1 has a reflective cavity, which includes a main body 11 and a pair of sidewalls 12 located on both sides of the main body; each sidewall 12 is bent relative to the main body 11 so that the pair of sidewalls 12 and the main body 11 together form a bowl shape.
[0036] The circuit board 21 is fixed to one side end face of the main body 11 of the reflector cavity, forming an angle α with the X-axis of the vehicle coordinate system. The angle α is between 0° and 45° so that the light source 22 is located on the side face of the reflector cavity. The decorative ring 3 is provided on one side of the reflector 1, and the decorative ring 3 is provided with a light outlet 32 suitable for the light emitted by the light source to be emitted. Here, in an optional embodiment, the main body 11 of the reflector cavity is provided with a strip-shaped partitioned reflective surface 16 to optimize the light path and increase the light utilization rate. Optical microstructures 17 are designed on a pair of reflector cavity sidewalls 12. The optical microstructures 17 here can be a patterned or textured structure to increase the diffuse reflection of light in the upper and lower directions of the main body 11 of the reflector cavity, making the light effect more uniform. Specifically, the light from the light source 22 is mainly directed toward the main body 11 of the reflective cavity. A small amount of light is also directed toward the pair of reflective cavity sidewalls 12 of the reflective cavity and then reflected back to the main body 11. To avoid the influence of this part of the light on the uniformity of the corner lamp, an optical microstructure 17 is provided on the pair of reflective cavity sidewalls 12 to increase the diffuse reflection of the light on the pair of reflective cavity sidewalls 12, making the road lighting effect more uniform.
[0037] Furthermore, the reflector 1 can be made of low-cost PC material. Optionally, the reflector 1 can be an aluminum-plated reflector 1. The reflector 1 has a connecting portion 13 that is outwardly flared relative to the reflector cavity body on one side end face corresponding to the main body 11 of the reflector cavity; the circuit board 21 is fixedly connected to the connecting portion 13. Referring to the accompanying drawings, in one optional case, the connecting portion 13 has a pre-set connecting post 14 for fixing the circuit board 21. Based on this, the circuit board 21 can be fixed to the connecting post 14 by, for example, but not limited to, riveting.
[0038] In conjunction with the accompanying drawings, one further example is provided: the main body 11 of the reflective cavity has an arc-shaped wall surface extending perpendicularly to the direction of its extension toward the sidewall 12 of the reflective cavity, and the light source 22 is offset at the center of this arc-shaped surface facing the connecting portion 13. The light source 22 is positioned in the middle region of the wall surface of the main body 11 of the reflective cavity extending toward the pair of sidewalls 12 of the reflective cavity. Based on this structure, the reflective cavity can be fully utilized to achieve uniform light emission. In another example, with reference to the accompanying drawings, the light source 22 is disposed on the end face of the circuit board 21 facing the reflective cavity, and located on the side edge of the circuit board 21 away from the end connected to the connecting portion 13.
[0039] The reflector 1 has at least two latching slots 15 on its side wall outside the reflective cavity for engaging the decorative ring 3, and the decorative ring 3 has a pair of snap-fit ears 31 for engaging with the at least two latching slots 15. Referring to the accompanying drawings, in one optional embodiment, the reflector 1 has one latching slot 15 on the outer wall surface of each pair of reflective cavity sidewalls 12 and the outer wall surface of the reflective cavity main body 11 away from the connecting portion 13. That is, the reflector 1 has a total of three latching slots 15, and the corresponding decorative ring 3 also has three snap-fit ears 31. Based on this, it should be noted that the decorative ring 3 is located near the side of the circuit board 21 away from its connection to the connecting portion 13, allowing the decorative ring 3 to block some of the direct light emitted from the light source 22.
[0040] In summary, for the automotive lighting optical system of this embodiment, by designing the light source 22 to be located on the side surface of the reflector, on the one hand, the light path can be optimized, making the light path more concentrated and the light output more uniform, avoiding stray light problems. The reflector can be made of low-cost materials without the need for a light-blocking structure or high-temperature resistant materials, thereby reducing the overall manufacturing cost of the automotive lighting optical system. On the other hand, it can also effectively reduce the dependence on the reflective surface of the reflector, allowing it to optimize the light pattern with fewer strip partitions and in conjunction with the light outlet shape of the trim ring. It eliminates the need for mesh-segmented cutting of the reflective surface, better reducing optical surface steps, thereby reducing the difficulty of mold manufacturing.
[0041] Example 2:
[0042] Based on the vehicle light optical system of Embodiment 1, this embodiment provides a corner lamp assembly, including: the vehicle light optical system of Embodiment 1.
[0043] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only 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.
[0044] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0047] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0048] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
Claims
1. A vehicle lighting optical system, characterized in that, include: A reflector, and a circuit board and decorative ring configured with a light source that mate with the reflector; in The reflector has a reflective cavity, which includes a main body and a pair of sidewalls located on both sides of the main body. The circuit board is fixed to one side end face of the main body of the reflector cavity and forms an angle α with the X-axis of the vehicle coordinate system. The angle α is between 0° and 45° so that the light source is located on the side face of the reflector; and The decorative ring is provided with a light outlet suitable for the light emitted by the light source to be emitted.
2. The vehicle lighting optical system according to claim 1, characterized in that, The reflector has a connecting part that is outwardly turned relative to the main body of the reflector cavity on one side end face; The circuit board is fixedly connected to the connector.
3. The vehicle lighting optical system according to claim 2, characterized in that, The connecting part is pre-set with connecting posts for fixing the circuit board.
4. The automotive lighting optical system according to claim 3, characterized in that, The circuit board is suitable for being riveted and fixed to the connecting post.
5. The vehicle lighting optical system according to claim 2 or 3, characterized in that, The main body of the reflective cavity has an arc-shaped wall surface along the direction perpendicular to its extension toward the side wall of the reflective cavity, and the light source is offset on the side of the center of the arc-shaped surface facing the connecting part.
6. The automotive lighting optical system according to claim 5, characterized in that, The light source is located in the middle region of the wall surface of the main body of the corresponding reflector cavity, extending towards the sidewalls of a pair of reflectors cavity.
7. The automotive lighting optical system according to claim 1, characterized in that, Optical microstructures are designed on the sidewalls of each pair of reflecting cavities.
8. The automotive lighting optical system according to claim 1, characterized in that, The reflector is provided with at least two buckle slots on the side wall outside the reflective cavity for attaching the decorative ring, and the decorative ring is provided with a pair of snap-fit ears for engaging with the at least two buckle slots.
9. The automotive lighting optical system according to claim 1, characterized in that, The main body of the reflective cavity is provided with reflective surfaces that are divided into strip-shaped sections.
10. A corner light assembly, characterized in that, include: The vehicle lighting optical system as described in any one of claims 1 to 9.