Thick wall piece and vehicle lamp
By setting recesses in the thickness direction of the thick-walled component and using multiple reflective surfaces to reflect light, the problem of miniaturizing the optical system of thick-walled components in automotive lights has been solved, achieving the effects of reducing space occupation and uniform light output.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JIALI AUTOMOBILE LAMP CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-12
AI Technical Summary
Existing thick-walled optical systems cannot meet the miniaturization requirements of automotive lights. LED direct-projection and side-projection thick-walled components occupy a large space in the thickness direction, making it difficult to meet the requirements for miniaturization.
A recess for mounting the light source is provided in the thickness direction of the wall component, and the light is reflected multiple times by the first and second reflecting surfaces, which reduces the space occupied in the thickness direction, while ensuring uniform light output and energy efficiency.
By reducing the space occupied in the thickness direction, the headlights are miniaturized while maintaining good light output and uniformity, avoiding excessive space occupation by the light concentrator and ensuring light energy efficiency.
Smart Images
Figure CN224229792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to thick-walled components and automotive lights. Background Technology
[0002] With the popularization of LED technology and the diversification of shapes, thick-walled component solutions have become a commonly used optical solution. Their excellent optical performance, transparent static effect, multi-functional integration, and superior cost advantages meet the current market demand for lightweight and diversified automotive lights. As a result, thick-walled component optical solutions are widely used in the automotive lighting field.
[0003] The current trend in automotive headlight design is towards miniaturization, which requires miniaturization of the internal structure of the headlight. However, current thick-walled optical systems cannot meet this requirement. On the one hand, LED direct-projection thick-walled components have disadvantages such as shape limitations and high depth requirements. On the other hand, LED side-projection thick-walled component solutions greatly increase the space occupied by the thick-walled component in the thickness direction due to the presence of the concentrator, making it difficult to meet the requirements of miniaturization. Utility Model Content
[0004] This utility model aims to solve the technical problems existing in the prior art. To this end, this utility model proposes a wall-thickness component and a vehicle lamp, which can reduce the space occupied by the wall-thickness component in the thickness direction, meet the miniaturization requirements, and at the same time ensure good light output and more uniform light output.
[0005] According to a first aspect embodiment of the present invention, a wall-thickness member has a recess for mounting a light source formed on one side along the thickness direction. The wall-thickness member has a light-emitting surface on the side away from the recess in the length direction. A first reflective surface and a second reflective surface are formed on the inner wall of the wall-thickness member. The first reflective surface is located on the side of the wall-thickness member away from the recess in the thickness direction and faces the light source. The second reflective surface is located on the side of the wall-thickness member with the recess and faces the light-emitting surface. The first reflective surface includes a first inclined surface and a second inclined surface with different slopes. The first inclined surface is used to reflect part of the light from the light source to the light-emitting surface along the length direction of the wall-thickness member. The second inclined surface reflects part of the light from the light source to the second reflective surface. The second reflective surface is used to reflect the light from the light source to the light-emitting surface along the length direction of the wall-thickness member.
[0006] The wall-thickness component according to the embodiment of this utility model has at least the following beneficial effects: by providing a recess for arranging the light source in the thickness direction of the wall-thickness component, it can be understood that the light source is recessed into the wall-thickness component, which can reduce the space occupied in the thickness direction. At the same time, in conjunction with the first reflective surface and the second reflective surface, the light emitted by the light source can be reflected to the light-emitting surface normally. This solution cleverly utilizes the inner wall of the wall-thickness component to achieve multiple reflections of light, greatly brightening the part of the wall-thickness component occupied by the light concentrator. At the same time, the light reflection is all total internal reflection, with no energy loss, ensuring good light output effect and relatively uniform light output.
[0007] In some embodiments, the outer wall of the wall-thickness member has a first plane, a second plane, and a third plane. Along the length direction of the wall-thickness member, the first plane, the second reflective surface, and the second plane are connected in sequence. The light source is located on the first plane. Along the thickness direction of the wall-thickness member, the third plane and the second plane are arranged back to back, and the distance between the third plane and the first plane is less than the distance between the third plane and the second plane.
[0008] In some embodiments, the outer wall of the wall-thickness member further has a third inclined surface, the third inclined surface connecting the third plane and the second inclined surface, the third inclined surface and the second inclined surface combined to form a V-shaped surface.
[0009] In some embodiments, the second reflective surface is an aluminum-plated surface.
[0010] In some embodiments, at least one of the first reflective surface, the second reflective surface, and the light-emitting surface has a pattern.
[0011] In some embodiments, the pattern is a corn kernel pattern, vertical stripes, horizontal stripes, leather texture, or small dot pattern.
[0012] The vehicle light according to a second aspect embodiment of the present invention includes:
[0013] The wall thickness component of the first aspect embodiment;
[0014] The light source is located at the recessed area;
[0015] A concentrator is disposed over the light source, and the concentrator is used to reflect the light from the light source onto the first reflective surface.
[0016] The vehicle lamp according to the present utility model has at least the above-mentioned beneficial effects since it includes the wall thickness member of the first aspect embodiment, which will not be repeated here.
[0017] In some embodiments, the concentrator is a circular concentrator or an irregularly shaped concentrator.
[0018] In some embodiments, the concentrator is any one of an asymmetric concentrator, a stretched concentrator, and a nested concentrator.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0021] Figure 1 This is a schematic diagram of the structure of a wall-thickness component according to some embodiments of the present invention;
[0022] Figure 2 This is a side view of a wall-thickness component according to some embodiments of the present invention;
[0023] Figure 3 This is a schematic diagram of the light propagation path of a wall-thickness component according to some embodiments of the present invention;
[0024] Figure 4 This is a front view of a wall-thickness component according to some embodiments of the present invention;
[0025] Figure 5 This is a top view of a wall-thickness component according to some embodiments of the present invention.
[0026] Figure label:
[0027] 1. Light source, 2. Concentrator, 3. First inclined surface, 4. Second inclined surface, 5. Light-emitting surface, 6. Recess, 7. First reflective surface, 8. First plane, 9. Second plane, 10. Third plane, 11. Third inclined surface, 12. Wall thickness component, 13. Detailed Implementation
[0028] Reference Figures 1 to 5 As shown, this is a wall thickness member 13 provided in an embodiment of the present utility model. Figure 1In the diagram, the vertical direction represents the thickness direction of the wall-thickness member 13, and the front-back direction represents its length direction. A recess 7 for mounting the light source 1 and the condenser 2 is formed on one side of the wall-thickness member 13 along its thickness direction. The recess 7 reduces the space occupied by the wall-thickness member 13 in the thickness direction. The wall-thickness member 13 can be made of a light-transmitting material. On the side of the wall-thickness member 13 facing away from the recess 7 in the length direction, there is a light-emitting surface 6. The light-emitting surface 6 is a light-transmitting surface, and the wall-thickness member 13 needs to guide the light from the light source 1 to be emitted from the light-emitting surface 6. For this purpose, the inner wall of the wall-thickness member 13 is formed with a first reflective surface 8 and a second reflective surface 5. The first reflective surface 8 and the second reflective surface 5 are total reflective surfaces, which can completely reflect light. The first reflective surface 8 is located on the side of the wall-thickness member 13 away from the recess 7 along the thickness direction and is set facing the light source 1. The second reflective surface 5 is located on the side of the wall-thickness member 13 where the recess 7 is provided and is set facing the light-emitting surface 6. The first reflective surface 8 includes a first inclined surface 3 and a second inclined surface 4 with different slopes.
[0029] Reference Figure 3 As shown, the condenser 2 is disposed around the outer periphery of the light source 1, and the light source 1 is placed at the focal point of the condenser 2, as shown in the figure. Figure 3 The solid arrow in the image indicates that the concentrator 2 reflects the light from the light source 1 vertically downwards to the first reflecting surface 8. The first inclined surface 3 reflects part of the light from the light source 1 horizontally along the length of the wall thickness member 13 to the light-emitting surface 6. The second inclined surface 4 reflects part of the light from the light source 1 obliquely upwards to the second reflecting surface 5. Then, the second reflecting surface 5 reflects the light from the light source 1 horizontally along the length of the wall thickness member 13 to the light-emitting surface 6, thereby achieving light emission.
[0030] In this embodiment, by arranging the recess 7, a portion of the space in the upper rear position of the wall-thickness component 13 is left empty. This can be understood as the light source 1 and the condenser 2 being embedded or sunk into the recess 7 of the wall-thickness component 13. At the same time, the first reflective surface 8 and the second reflective surface 5 are cleverly arranged, allowing a portion of the space in the lower front position of the wall-thickness component 13 to be left empty. Ultimately, this reduces the space occupied by the wall-thickness component 13 in the thickness direction (most traditional solutions can only reflect all the light from the light source 1 horizontally to the light-emitting surface 6 through the reflective surface, causing the light source 1 and the condenser 2 to protrude from one side of the wall-thickness component in the thickness direction, resulting in a large space occupation). The solution in this embodiment can normally achieve the reflection of light (even if the light source 1 and the condenser 2 are arranged in the recess 7, the length of the light-emitting surface 6 of this application can remain unchanged, the space occupation is reduced but the light-emitting area remains unchanged). This solution cleverly utilizes the inner wall of the thick-walled component to achieve multiple reflections of light, greatly illuminating the part of the thick-walled component occupied by the condenser 2. At the same time, the light reflection is all total internal reflection, with no energy loss, ensuring good light output effect and relatively uniform light output.
[0031] It should be noted that light source 1 should meet the requirements of GB-4785 for the light color of luminaires with different functions. For example, LED light sources with light colors of white, yellow, red, blue, and green can be used. LED light sources can also be dual-core light sources composed of different light colors.
[0032] It should be noted that the slopes of the first reflecting surface 8 and the second reflecting surface 5 can be adaptively set according to actual needs, and are not limited here.
[0033] Reference Figure 2 As shown, in some embodiments, the length of the first inclined surface 3 is greater than the length of the second inclined surface 4 in the thickness direction of the wall thickness member 13, so that most of the light is directly reflected from the first inclined surface 3 to the light-emitting surface 6, and a small portion of the light is reflected from the second inclined surface 4 to the second reflective surface 5, thus ensuring uniform light emission.
[0034] Reference Figure 1 and Figure 2 As shown, in some embodiments, the outer wall of the wall-thickness member 13 has a first plane 9, a second plane 10, and a third plane 11. Along the length of the wall-thickness member 13, the first plane 9, the second reflective surface 5, and the second plane 10 are connected sequentially, with the light source 1 located on the first plane 9. Along the thickness direction of the wall-thickness member 13, the third plane 11 and the second plane 10 are arranged back-to-back, and the distance between the third plane 11 and the first plane 9 is less than the distance between the third plane 11 and the second plane 10. From front to back, the thickness of the wall-thickness member 13 gradually decreases, thus reducing the thickness of the wall-thickness member 13 and minimizing the space occupied by the wall-thickness member 13 in the thickness direction.
[0035] Reference Figure 1 and Figure 2 As shown, in some embodiments, the outer wall of the wall-thickness member 13 also has a third inclined surface 12, which connects the third plane 11 and the second inclined surface 4. The third inclined surface 12 and the second inclined surface 4 together form a V-shaped surface with a small degree of protrusion. The purpose of providing the third inclined surface 12 is to prevent light from being reflected from the second inclined surface 4 to the second reflecting surface 5.
[0036] In some embodiments, the second reflective surface 5 can be an aluminum-plated surface, which has a better reflective effect.
[0037] In some embodiments, at least one of the inner wall of the concentrator 2, the first reflective surface 8, the second reflective surface 5, and the light-emitting surface 6 may have a pattern. The pattern may be a corn kernel pattern, vertical stripes, horizontal stripes, leather texture, or small dot pattern. This can achieve a more uniform lighting effect.
[0038] In some embodiments, the present invention also provides a vehicle lamp, which includes the aforementioned wall thickness member 13, light source 1, and concentrator 2.
[0039] In some embodiments, the condenser 2 can be a circular condenser 2 or an irregularly shaped condenser 2. For the irregularly shaped condenser 2, it can be any one of an asymmetric condenser 2, a stretched condenser 2, and a nested condenser 2.
[0040] In some embodiments, the concentrator 2 and the thick-walled member 13 may be an integral structure or two separate structures.
[0041] Examples of the embodiments described above are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.
[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0044] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A thick-walled component, characterized in that, The wall-thickness member has a recess for mounting a light source on one side along its thickness direction. The wall-thickness member has a light-emitting surface on the side away from the recess along its length direction. The inner wall of the wall-thickness member has a first reflective surface and a second reflective surface. The first reflective surface is located on the side of the wall-thickness member away from the recess along its thickness direction and faces the light source. The second reflective surface is located on the side of the wall-thickness member with the recess and faces the light-emitting surface. The first reflective surface includes a first inclined surface and a second inclined surface with different slopes. The first inclined surface is used to reflect part of the light from the light source along the length direction of the wall-thickness member to the light-emitting surface. The second inclined surface reflects part of the light from the light source to the second reflective surface. The second reflective surface is used to reflect the light from the light source along the length direction of the wall-thickness member to the light-emitting surface.
2. The wall thickness member according to claim 1, characterized in that, The outer wall of the wall-thickness member has a first plane, a second plane, and a third plane. Along the length direction of the wall-thickness member, the first plane, the second reflective surface, and the second plane are connected in sequence. The light source is located on the first plane. Along the thickness direction of the wall-thickness member, the third plane and the second plane are arranged back to back, and the distance between the third plane and the first plane is less than the distance between the third plane and the second plane.
3. The wall thickness member according to claim 2, characterized in that, The outer wall of the wall-thickness member also has a third inclined surface, which connects the third plane and the second inclined surface. The third inclined surface and the second inclined surface together form a V-shaped surface.
4. The wall thickness member according to claim 1, characterized in that, The second reflective surface is an aluminum-plated surface.
5. The wall thickness member according to claim 1, characterized in that, At least one of the first reflective surface, the second reflective surface, and the light-emitting surface has a pattern.
6. The wall thickness member according to claim 5, characterized in that, The pattern can be a corn kernel pattern, vertical stripes, horizontal stripes, leather texture, or small dot pattern.
7. A vehicle headlight, characterized in that, include: The wall thickness member according to any one of claims 1 to 6; The light source is located at the recessed area; A concentrator is disposed over the light source, and the concentrator is used to reflect the light from the light source onto the first reflective surface.
8. The vehicle light according to claim 7, characterized in that, The concentrator is either a circular concentrator or an irregularly shaped concentrator.
9. The vehicle light according to claim 8, characterized in that, The concentrator is any one of an asymmetric concentrator, a stretched concentrator, and a nested concentrator.