Reduced total reflection structure of a light collector dark ring and thick wall part thereof
By using tilted reflective units in automotive headlights, the height difference of the reflective surfaces is changed, solving the problem of uneven light reflection from the concentrator and achieving uniform light dispersion and improved aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
Smart Images
Figure CN224498276U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to a total reflection structure for reducing the dark ring of a concentrator and its thick-walled component. Background Technology
[0002] In automotive headlights, a concentrator is used to focus the light from the LEDs and then project it onto the light-emitting surface through a reflective surface to achieve the desired lighting effect.
[0003] Currently, the light reflected by the condenser and reflector forms a dark ring on the light-emitting surface, resulting in uneven light distribution and affecting the aesthetics of the lighting effect. In order to ensure the uniformity of light output, many light distribution patterns are usually added. The light path is changed by the reflection of the patterns to improve uniformity. However, the number of light distribution patterns is too large, which greatly increases the difficulty of light distribution. Utility Model Content
[0004] The purpose of this invention is to provide a total internal reflection structure and its thick-walled component to reduce the dark ring of the concentrator, so as to solve the technical problem that after the light is emitted from inside the headlight, a dark ring is formed on the light-emitting surface, resulting in uneven light emission and reducing the aesthetics of the headlight lighting effect. The invention achieves the goal of changing the height of the emitted light by changing the height of the reflective surface, thereby dispersing the light and achieving uniform light emission, and concentrating the dark ring in one place.
[0005] To solve the above-mentioned technical problems, this utility model provides a total internal reflection structure and its thick-walled component for reducing the dark ring of a concentrator, comprising:
[0006] A reflective unit, wherein the reflective unit is inclined, and the reflective unit includes: a first reflective surface and a second reflective surface arranged in parallel, wherein the bottom end of the first reflective surface is connected to the top end of the second reflective surface;
[0007] Both ends of the reflective unit are connected to parallel third reflective surfaces; the first reflective surface is located above the third reflective surface, and the second reflective surface is located below the third reflective surface;
[0008] Parallel light rays are emitted horizontally after total reflection by the first reflecting surface, the second reflecting surface, and the third reflecting surface.
[0009] Furthermore, the first reflective surface, the second reflective surface, and the third reflective surface form an angle of 40° to 50° with the horizontal direction;
[0010] The first reflective surface is connected to the second reflective surface via a vertically arranged first connecting surface, and both the first reflective surface and the second reflective surface are connected to the third reflective surface via a horizontally arranged second connecting surface.
[0011] Furthermore, a third reflective surface is disposed between the first reflective surface and the second reflective surface, and the angle between the first reflective surface, the second reflective surface and the third reflective surface and the horizontal direction is 40° to 50°.
[0012] The bottom end of the first reflective surface and the top end of the second reflective surface are both connected to the third reflective surface through a vertically arranged first connecting surface, and the top end of the first reflective surface and the bottom end of the second reflective surface are both connected to the third reflective surface through a horizontally arranged second connecting surface.
[0013] Furthermore, a concentrator is provided at the bottom of the reflective unit, which is used to focus parallel light rays toward the reflective unit.
[0014] Furthermore, multiple first reflective surfaces and multiple second reflective surfaces are provided, with multiple first reflective surfaces and multiple second reflective surfaces arranged alternately;
[0015] The first reflective surface is disposed parallel to and above the second reflective surface, and adjacent first reflective surfaces and second reflective surfaces are connected by a third connecting surface, which is perpendicular to both the first reflective surface and the second reflective surface.
[0016] Multiple first reflective surfaces are connected to multiple second reflective surfaces to form a reflective part.
[0017] Thick-walled components, including the aforementioned total internal reflection structure for reducing the dark ring of the concentrator and the thick-walled component body;
[0018] The bottom end of the thick-walled component body is provided with a plurality of light concentrators, and the plurality of light concentrators are all connected to the interior of the thick-walled component body.
[0019] Furthermore, the reflective unit is disposed on the end face of the thick-walled component body, and the end face of the thick-walled component body is an inclined surface that matches the reflective unit;
[0020] Multiple concentrators are disposed on the end of the thick-walled body near the reflective unit, and the multiple concentrators extend along the length direction of the reflective unit.
[0021] Furthermore, the reflective portion is disposed on the end face of the thick-walled component body, and the end face of the thick-walled component body is an inclined surface that matches the reflective portion;
[0022] The plurality of light concentrators are disposed on the end of the thick-walled body near the reflective portion, and the plurality of light concentrators extend along the length direction of the reflective portion.
[0023] The beneficial effects of this utility model are:
[0024] 1. By setting a reflection unit, the first and second reflection surfaces are not on the same axis, and the first reflection surface is above the second reflection surface. Compared with the existing solution, the light from the concentrator is totally reflected after hitting the first and second reflection surfaces and then emitted. Since the first and second reflection surfaces have a height difference, the light reflected by the first reflection surface is at a higher emission height than the existing solution, and the light reflected by the second reflection surface is at a lower emission height than the existing solution. This disperses the emitted light and concentrates the dark part of the emission surface, affecting the aesthetics of the lighting effect.
[0025] 2. By changing the height difference between the first and second reflective surfaces, this utility model can reduce the dark ring of the concentrator. Compared with the existing solution, which increases the number of light distribution patterns, this application has low light distribution difficulty, uses fewer patterns, is easy to demold, reduces costs, and is simple to operate.
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the total internal reflection structure of the concentrator dark ring of this utility model;
[0029] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention;
[0030] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;
[0031] Figure 4 This is a structural schematic diagram of Embodiment 3 of this utility model;
[0032] Figure 5 This is a structural schematic diagram of the thick-walled component body of Embodiment 4 and the reflective unit of Embodiment 1 of this utility model;
[0033] Figure 6 This is a structural schematic diagram of the thick-walled component body of Embodiment 4 and the reflective unit of Embodiment 2 of this utility model;
[0034] Figure 7 This is a structural schematic diagram of Embodiment 5 of this utility model.
[0035] In the picture:
[0036] 1. Reflecting unit; 11. First reflecting surface; 12. Second reflecting surface; 13. Third reflecting surface; 14. First connecting surface; 15. Second connecting surface; 16. Third connecting surface; 2. Reflecting part; 3. Concentrator; 4. Thick-walled component body. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0038] Example 1:
[0039] like Figures 1 to 2 As shown, the total internal reflection structure of the concentrator dark ring includes: a reflection unit 1 and a concentrator 3. The reflection unit 1 is set at an angle, and the concentrator 3 is located at the bottom of the reflection unit 1. An LED light is placed at the bottom of the concentrator 3. The concentrator 3 is used to converge parallel light rays to the reflection unit 1. The vertical parallel light rays hit the reflection unit 1 and are emitted horizontally after total internal reflection by the angled reflection unit 1.
[0040] The reflective unit 1 includes a first reflective surface 11 and a second reflective surface 12 arranged in parallel, with the bottom end of the first reflective surface 11 connected to the top end of the second reflective surface 12; both ends of the reflective unit 1 are connected to a parallel third reflective surface 13; the first reflective surface 11 is located above the third reflective surface 13, and the second reflective surface 12 is located below the third reflective surface 13.
[0041] It should be noted that the number of first reflective surfaces 11 and second reflective surfaces 12 in the reflective unit 1 is any even number, and the number of first reflective surfaces 11 and second reflective surfaces 12 is equal.
[0042] In this embodiment, the third reflective surfaces 13 at both ends are coaxially arranged and located on the same plane. The plane where the first reflective surface 11 is located is above the third reflective surface 13, and the plane where the second reflective surface 12 is located is below the third reflective surface 13; as shown Figure 1 The leftmost image shows the existing scheme, where the reflective surfaces are all coaxially arranged on the same horizontal plane. Light rays hitting the connection points of the reflective surfaces are not reflected, thus obtaining a light-emitting surface with a dark ring.
[0043] like Figure 1The middle section shows the solution of this application. Since the first reflective surface 11 rises and the second reflective surface 12 falls, compared with the existing solution, the light reflected by the first reflective surface 11 is emitted at a higher height than the existing solution, and the light reflected by the second reflective surface 12 is emitted at a lower height than the existing solution. At the same time, the light reflected by the top of the first reflective surface 11 and the bottom of the upper third reflective surface 13 overlaps, and the light reflected by the bottom of the second reflective surface 12 and the top of the lower third reflective surface 13 overlaps, thereby reducing the dark ring formed between the reflective surfaces. Furthermore, there is a height difference between the first reflective surface 11 and the second reflective surface 12, so the light does not reflect between the first reflective surface 11 and the second reflective surface 12, thus forming a dark area. The dark area is concentrated in the middle of the light-emitting surface, reducing the damage to the lighting effect.
[0044] The first reflective surface 11, the second reflective surface 12, and the third reflective surface 13 all form an angle of 45° with the horizontal direction; the first reflective surface 11 is connected to the second reflective surface 12 through a vertically arranged first connecting surface 14, and the first reflective surface 11 and the second reflective surface 12 are both connected to the third reflective surface 13 through a horizontally arranged second connecting surface 15.
[0045] In this embodiment, the first connecting surface 14 connects the first reflecting surface 11 and the second reflecting surface 12. Since the first connecting surface 14 is in the same direction as the incident light, the light does not undergo total internal reflection when it hits the first connecting surface 14. The first reflecting surface 11 and the second reflecting surface 12 are both connected to the third reflecting surface 13 at both ends through the second connecting surface 15. Since the second connecting surface 14 is perpendicular to the vertical light direction, the light does not undergo total internal reflection when it hits the second connecting surface 15.
[0046] It should be noted that when vertical light shines on the first reflective surface 11, the second reflective surface 12, and the third reflective surface 13, the light is totally reflected and emitted horizontally. Due to the height difference between the first reflective surface 11 and the second reflective surface 12, the light is dispersed, and the dark area is concentrated between the first reflective surface 11 and the second reflective surface 12, which improves the aesthetics of the headlight illumination effect.
[0047] Example 2:
[0048] like Figure 1 and Figure 3 As shown, the difference from Embodiment 1 is that a third reflecting surface 13 is provided between the first reflecting surface 11 and the second reflecting surface 12, and the angle between the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13 and the horizontal direction is 40° to 50°; both ends of the first reflecting surface 11 and the second reflecting surface 12 are connected to the third reflecting surface 13, and the three segments of the third reflecting surface 13 are coaxially arranged on the same horizontal plane; at this time, as Figure 1As shown in the rightmost image, vertical light rays undergo total internal reflection at the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13 before exiting horizontally. Because there are height differences between the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13, the outgoing light rays are dispersed, resulting in the image shown. Figure 1 The light pattern on the right.
[0049] In this design, the bottom end of the first reflective surface 11 and the top end of the second reflective surface 12 are both connected to the third reflective surface 13 via a vertically arranged first connecting surface 14, and the top end of the first reflective surface 11 and the bottom end of the second reflective surface 12 are both connected to the third reflective surface 13 via a horizontally arranged second connecting surface 15. The width of the second connecting surface 15 is greater than or equal to the width of the dark ring in the existing solution, thereby eliminating part of the dark ring.
[0050] It should be noted that vertical light rays do not undergo total internal reflection because they are aligned with the first connecting surface 14, and they also do not undergo total internal reflection because they are perpendicular to the second connecting surface 15. The vertical light rays strike the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13, and are emitted horizontally after total internal reflection by the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13. Due to the height difference between the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13, the emitted light rays are dispersed, and the light-emitting surface between the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13 is a dark area, which further reduces the dark ring of the concentrator and improves the lighting effect of the headlight.
[0051] It should be noted that, Figure 1 The shaded areas are the illuminated surfaces, while the white areas are the darker regions.
[0052] Example 3:
[0053] like Figure 4 As shown, the difference from Embodiment 1 and Embodiment 2 is that multiple first reflecting surfaces 11 and multiple second reflecting surfaces 12 are provided, and multiple first reflecting surfaces 11 and multiple second reflecting surfaces 12 are arranged alternately; the first reflecting surfaces 11 are arranged parallel to the top of the second reflecting surfaces 12, and adjacent first reflecting surfaces 11 and second reflecting surfaces 12 are connected by a third connecting surface 16, which is perpendicular to both the first reflecting surfaces 11 and the second reflecting surfaces 12; multiple first reflecting surfaces 11 and multiple second reflecting surfaces 12 are connected to form a reflecting part 2. Since the direction of the third connecting surface 16 is the same as that of the vertical light, total internal reflection does not occur; the number of first reflecting surfaces 11 and second reflecting surfaces 12 in the reflecting part 2 can be arbitrary.
[0054] Example 4:
[0055] like Figure 5 He Ru Figure 6As shown, the thick-walled component includes: a total internal reflection structure for reducing the dark ring of the concentrator as described in any of the above embodiments and a thick-walled component body 4; a plurality of concentrators 3 are provided at the bottom end of the thick-walled component body 4, and the plurality of concentrators 3 are all connected to the interior of the thick-walled component body 4, and the concentrators 3 focus the light into parallel light rays that are projected into the thick-walled component body 4.
[0056] Among them, the reflective unit 1 is disposed on the end face of the thick-walled body 4, and the end face of the thick-walled body 4 is an inclined surface that matches the reflective unit 1; multiple concentrators 3 are disposed on the end of the thick-walled body 4 near the reflective unit 1, and the multiple concentrators 3 extend along the length direction of the reflective unit 1.
[0057] In this embodiment, the concentrator 3 directs light onto the reflector unit 1. After total reflection by the first reflector surface 11, the second reflector surface 12, and the third reflector surface 13, the light is emitted horizontally, improving the uniformity of the light and enhancing the illumination effect of the headlights.
[0058] Example 5:
[0059] like Figure 7 As shown, the difference from Embodiment 4 is that the reflective part 2 is disposed on the end face of the thick-walled body 4, and the end face of the thick-walled body 4 is an inclined surface that matches the reflective part 2; multiple concentrators 3 are disposed on the end of the thick-walled body 4 near the reflective part 2, and the multiple concentrators 3 extend along the length direction of the reflective part 2.
[0060] The light concentrator 3 directs light onto the reflector 2, and the light is reflected horizontally after total reflection by the first reflector 11 and the second reflector 12, which improves the uniformity of the emitted light and enhances the lighting effect of the headlights.
[0061] In summary, the concentrator 3 focuses the light from the LED into vertical parallel rays, which are then projected onto the reflective unit 1 or reflective part 2 on the thick-walled body 4. The vertical rays are reflected horizontally after total reflection by the first reflective surface 11, the second reflective surface 12, and the third reflective surface 13 (or the first reflective surface and the second reflective surface 12). Due to the height difference between the first reflective surface 11, the second reflective surface 12, and the third reflective surface 13 (or the first reflective surface 11 and the second reflective surface 12), the emitted light is raised or lowered, thereby dispersing the light evenly and concentrating the dark areas to improve the lighting effect of the vehicle headlights.
[0062] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0063] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0064] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0065] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A total internal reflection structure for reducing the dark ring of a concentrator, characterized in that, include: A reflective unit (1) is inclined and includes a first reflective surface (11) and a second reflective surface (12) arranged in parallel, wherein the bottom end of the first reflective surface (11) is connected to the top end of the second reflective surface (12). Both ends of the reflecting unit (1) are connected to parallel third reflecting surfaces (13); the first reflecting surface (11) is located above the third reflecting surface (13), and the second reflecting surface (12) is located below the third reflecting surface (13); Parallel light rays are emitted horizontally after total reflection by the first reflecting surface (11), the second reflecting surface (12), and the third reflecting surface (13).
2. The total internal reflection structure for reducing the dark ring of the concentrator as described in claim 1, characterized in that, The first reflective surface (11), the second reflective surface (12), and the third reflective surface (13) form an angle of 40° to 50° with the horizontal direction; The first reflective surface (11) is connected to the second reflective surface (12) through a vertically arranged first connecting surface (14), and both the first reflective surface (11) and the second reflective surface (12) are connected to the third reflective surface (13) through a horizontally arranged second connecting surface (15).
3. The total internal reflection structure for reducing the dark ring of the concentrator as described in claim 1, characterized in that, A third reflective surface (13) is disposed between the first reflective surface (11) and the second reflective surface (12), and the first reflective surface (11), the second reflective surface (12) and the third reflective surface (13) form an angle of 40° to 50° with the horizontal direction; The bottom end of the first reflective surface (11) and the top end of the second reflective surface (12) are both connected to the third reflective surface (13) through a vertically arranged first connecting surface (14), and the top end of the first reflective surface (11) and the bottom end of the second reflective surface (12) are both connected to the third reflective surface (13) through a horizontally arranged second connecting surface (15).
4. The total internal reflection structure for reducing the dark ring of the concentrator as described in claim 1, characterized in that, A concentrator (3) is provided at the bottom of the reflective unit (1), and the concentrator (3) is used to focus parallel light rays toward the reflective unit (1).
5. The total internal reflection structure for reducing the dark ring of the concentrator as described in claim 1, characterized in that, Multiple first reflective surfaces (11) and multiple second reflective surfaces (12) are provided, and multiple first reflective surfaces (11) and multiple second reflective surfaces (12) are arranged alternately; The first reflective surface (11) is arranged parallel above the second reflective surface (12), and adjacent first reflective surfaces (11) and second reflective surfaces (12) are connected by a third connecting surface (16), which is perpendicular to both the first reflective surface (11) and the second reflective surface (12). Multiple first reflective surfaces (11) are connected to multiple second reflective surfaces (12) to form a reflective part (2).
6. A thick-walled component, characterized in that, include: The total internal reflection structure and thick-walled body of the concentrator dark ring as described in any one of claims 1 to 5; The bottom end of the thick-walled body (4) is provided with a plurality of light concentrators (3), and the plurality of light concentrators (3) are all connected to the interior of the thick-walled body (4).
7. The thick-walled component as described in claim 6, characterized in that, The reflective unit (1) is disposed on the end face of the thick-walled body (4), and the end face of the thick-walled body (4) is an inclined surface that matches the reflective unit (1); Multiple concentrators (3) are disposed on the end of the thick-walled body (4) near the reflective unit (1), and the multiple concentrators (3) extend along the length direction of the reflective unit (1).
8. The thick-walled component as described in claim 6, characterized in that, The reflective part (2) is disposed on the end face of the thick-walled body (4), and the end face of the thick-walled body (4) is an inclined surface that matches the reflective part (2); Multiple light-concentrating elements (3) are disposed on the end of the thick-walled body (4) near the reflective part (2), and the multiple light-concentrating elements (3) extend along the length direction of the reflective part (2).