Thick-wall part structure capable of enlarging light-emitting area and vehicle lamp
By designing a combination of full reflection surfaces in the thick-walled structure to form two light transmission paths, the problem of low efficiency in expanding the light output area in the existing technology is solved, and the effect of uniform light distribution and LED saving is achieved.
Patent Information
- Application Number
- CN202422743274.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The existing method of increasing the light output area by adding LED light sources is inefficient, increases costs, and may lead to circuit complexity and heat risks. How to increase the light output area without adding LED light sources?
A thick-walled component structure is designed to expand the light-emitting area. By setting total reflection surface I, total reflection surface II, total reflection surface III and total reflection surface IV on the thick-walled component body, light forms two different light paths after entering the thick-walled component, and is reflected by these reflection surfaces and then emitted from the light-emitting surface, thereby realizing effective utilization of light.
Without increasing the number of LED light sources, the light output area is effectively expanded, the light is evenly distributed, the light utilization efficiency is improved, the number of LEDs is reduced, and efficient lighting is achieved.
Smart Images
Figure CN223306754U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamp accessories, in particular to a thick-walled component structure and a vehicle lamp for enlarging a light-emitting area. Background Art
[0002] To ensure driving safety, China has enacted relevant regulations to regulate the light output area of headlights. For example, GB23255-2009 stipulates that the light output area of daytime running lights (DRLs) must be no less than 40 square centimeters. This regulation ensures that DRLs are bright enough to provide clear visual signals to other road users during daylight hours or in low-light conditions. LED light sources, with their advantages of compact size, high brightness, and low energy consumption, are widely used in headlight design.
[0003] Most existing automotive lighting solutions require light to be emitted from an LED, pass through a series of actuators, and then exit from a light-emitting surface. The light-emitting area generally corresponds to the number of LED light sources and the area of the actuators. To increase the light-emitting area, the number of LED light sources must be increased. However, the use of a large number of LEDs results in low efficiency, increases LED raw material costs, complicates circuit design, and increases thermal risks. Therefore, how can one expand the light-emitting area without increasing the number of LED light sources? Those skilled in the art have provided a thick-walled component structure and automotive light that expands the light-emitting area to address the issues raised in the background art. Utility Model Content
[0004] The technical problem to be solved by the present invention is: in order to solve the technical problem in the prior art of expanding the light-emitting area after light is transmitted through thick-walled parts by adding LED light sources, the present invention provides a thick-walled part structure and a car light with expanded light-emitting area. With the same number of LEDs, the light-emitting area is expanded, the number of LEDs is saved, and the lighting is uniform and efficient.
[0005] The technical solution adopted by the utility model to solve the technical problem is: a thick-walled member structure for enlarging the light output area, which includes: a concentrator and a thick-walled member body, wherein the concentrator is arranged on one end of the thick-walled member body;
[0006] One end of the thick-walled member body is provided with total reflection surface I and total reflection surface II arranged opposite to each other, and total reflection surface III and total reflection surface IV arranged opposite to each other, the concentrator is located below the total reflection surface I and the total reflection surface II, and the other end of the thick-walled member body is provided with a light emitting surface, the total reflection surface I and the total reflection surface IV are staggered and both face the light emitting surface;
[0007] Among them, a part of the light is totally reflected by the total reflection surface I and then emitted from the light-emitting surface to form a first light path, and another part of the light is totally reflected by the total reflection surface II, the total reflection surface III and the total reflection surface IV in sequence and then emitted from the light-emitting surface to form a second light path.
[0008] The specific technical effect is: through the design of total reflection surface I, total reflection surface II, total reflection surface III and total reflection surface IV, after the light enters the thick-walled component body, two different light paths, namely the first light path and the second light path, and the two light paths are finally emitted from the light-emitting surface in parallel, that is, the effective utilization of the light emitted by the light source is improved by the cooperation of two different light paths. Under this structural design, compared with thick-walled components with a single light path, the light-emitting area can be effectively expanded, and the emission of two light paths can be achieved by using only one LED light source, which not only expands the light-emitting area but also saves the number of LEDs, and the lighting is uniform and efficient.
[0009] Furthermore, the horizontal projection distances of the total reflection surface I, the total reflection surface II, and the total reflection surface III are all A1, and the horizontal projection distance of the outermost contour of the concentrator is L, where L≥A1.
[0010] The specific technical effect is: the horizontal projection distance of total reflection surface I is A1, then the light output width of the first light path is A1, and the light output width of the second light path is the horizontal projection distance of total reflection surface IV. Therefore, the total light output width is equal to the sum of the horizontal projection distance of total reflection surface I and the horizontal projection distance of total reflection surface IV; where L≥A1 ensures that total reflection surface I can be fully illuminated, and the light reflected by total reflection surface I can be uniform.
[0011] Furthermore, the vertical projection distances between the total reflection surface III and the total reflection surface IV are equal and are both A2, where A1≥A2.
[0012] The specific technical effect is: the equal vertical projection distance can ensure that the light on the total reflection surface III can be fully reflected to the total reflection surface IV, and A1≥A2 can also ensure that the total reflection surface IV can be fully illuminated, so the light reflected by the total reflection surface IV can be uniform.
[0013] Furthermore, the vertical projection distance of the total reflection surface I is A3, and the vertical projection distance of the total reflection surface II is A4, wherein A3=A4=L / 2.
[0014] The specific technical effect is: this design can divide the light after passing through the concentrator into two equal parts, and ultimately make the light emitted through the first light path and the light emitted through the second light path evenly distributed, thereby improving the lighting uniformity.
[0015] Furthermore, the angles between the total reflection surface I, the total reflection surface II, the total reflection surface III and the total reflection surface IV and the emergent light are all 40° to 50°.
[0016] Furthermore, the total reflection surface I, the total reflection surface II, the total reflection surface III and the total reflection surface IV are all provided with light distribution patterns or leather textures.
[0017] The specific technical effect is: by setting the light distribution pattern or leather texture to further achieve the diffusion effect of light.
[0018] Furthermore, the concentrator is a circular concentrator, a nested concentrator, or a stretched concentrator.
[0019] The specific technical effect is that the size and type of the concentrator can be adjusted according to the use requirements. It can be a circular concentrator, a nested concentrator or a stretched concentrator, etc. It can also be added with patterned leather grain and other structures according to the uniformity requirements to further achieve the diffusion effect of light.
[0020] Furthermore, the number of the concentrators and the number of the thick-walled component bodies are the same and both are multiple, and the multiple thick-walled component bodies and the multiple concentrators are arranged in sequence along the horizontal direction.
[0021] The specific technical effect is: the number of concentrators and thick-walled parts is the same, that is, the concentrators and thick-walled parts cooperate one-to-one to form a diffusion effect on light; the depth and length of the entire thick-walled part can be adjusted and changed according to the shape of the lamp, that is, according to actual needs, multiple thick-walled parts and multiple concentrators are arranged in sequence along the horizontal direction, and a light source is set at the light input end of each concentrator.
[0022] A vehicle lamp comprises a light source and a thick-walled structure for enlarging the light output area as described in any one of the above items, wherein the light source is arranged corresponding to the light incident end of the concentrator.
[0023] Furthermore, the light source is red, white, yellow, or a combination of two.
[0024] The specific technical effect is that the LED light source is not limited to color, and one or a combination of any two can be selected according to the actual functional application.
[0025] Compared with the prior art, the beneficial effects of the present invention are:
[0026] (1) The utility model introduces light into the thick-walled part body by setting a concentrator;
[0027] (2) The present invention uses the design of total reflection surface I, total reflection surface II, total reflection surface III and total reflection surface IV to form two different light paths, namely the first light path and the second light path, after the light enters the thick-walled part body, and the two light paths are finally emitted from the light-emitting surface in parallel, that is, the effective utilization of the light emitted by the light source is improved by the cooperation of the two different light paths. Under this structural design, the light-emitting area can be effectively expanded compared with the thick-walled part with a single light path, and the emission of the two light paths can be achieved by using only one LED light source, which not only expands the light-emitting area but also saves the number of LEDs, and the lighting is uniform and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Figure 1 This is a schematic structural diagram of a thick-walled component structure of the present invention;
[0030] Figure 2 This is a structural schematic diagram of the thick-walled member structure of the present invention from another perspective;
[0031] Figure 3 for Figure 1 Front view of
[0032] Figure 4 for Figure 3 Right view;
[0033] Figure 5 for Figure 3 Bottom view of
[0034] Figure 6 for Figure 3 A top view of
[0035] Figure 7 for Figure 6 Schematic diagram of the optical path of the AA cross-section structure.
[0036] In the figure: 1. Concentrator;
[0037] 2. Thick-walled component body; 201. Total reflection surface I; 202. Total reflection surface II; 203. Total reflection surface III; 204. Total reflection surface IV; 205. Light emitting surface;
[0038] 3. Light source. DETAILED DESCRIPTION
[0039] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0042] like Figures 1 to 7 As shown, it is a preferred embodiment of the present utility model. In this embodiment, a thick-walled member structure for expanding the light output area comprises: a concentrator 1 and a thick-walled member body 2, wherein the concentrator 1 is arranged on one end of the thick-walled member body 2; one end of the thick-walled member body 2 is provided with a total reflection surface I 201 and a total reflection surface II 202 arranged opposite to each other, and a total reflection surface III 203 and a total reflection surface IV 204 arranged opposite to each other, the concentrator 1 is located below the total reflection surface I 201 and the total reflection surface II 202, and a light output surface 205 is provided on the other end of the thick-walled member body 2, wherein the total reflection surface I 201 and the total reflection surface IV 204 are staggered and both face the light output surface 205;
[0043] Among them, a part of the light is totally reflected by the total reflection surface I 201 and then emitted from the light-emitting surface 205 to form a first light path, and the other part of the light is totally reflected by the total reflection surface II 202, the total reflection surface III 203 and the total reflection surface IV 204 in sequence and then emitted from the light-emitting surface 205 to form a second light path.
[0044] The thick-walled body 2 can be made of transparent materials such as PMMA or PC.
[0045] The number of the concentrators 1 and the thick-walled member bodies 2 is the same and both are multiple, and the multiple thick-walled member bodies 2 and the multiple concentrators 1 are sequentially arranged in the horizontal direction.
[0046] Therefore, the number of concentrators 1 and thick-walled component bodies 2 is the same, that is, the concentrators 1 and the thick-walled component bodies 2 cooperate one-to-one to form a diffusion effect on light; the depth and length of the entire thick-walled component can be adjusted and changed according to the shape of the lamp, that is, according to actual needs, multiple thick-walled component bodies 2 and multiple concentrators 1 are arranged in sequence along the horizontal direction, and a light source 3 is set at the light input end of each concentrator 1.
[0047] More specifically, the optical path principle of this embodiment is as follows: the concentrator 1 introduces light into the thick-walled member body, and is divided into two parts through the total reflection surface I 201 and the total reflection surface II 202. One part of the light hits the total reflection surface I 201, and is emitted from the light-emitting surface 205 after total reflection. The other part of the light hits the total reflection surface II 202, and is emitted from the total reflection surface III 203 after total reflection. Then, after total reflection from the total reflection surface III 203, it hits the total reflection surface IV 204, and is emitted from the light-emitting surface 205 after total reflection from the total reflection surface IV 204. That is, It is said that after the light enters the thick-walled part body 2, two different light paths, the first light path and the second light path, are formed, and the two light paths are finally emitted from the light-emitting surface 205 in parallel, that is, the effective utilization of the light emitted by the light source 3 is improved by the cooperation of two different light paths. Under this structural design, compared with the traditional solution in which a light source 3 has only a single light-emitting path through the thick-walled part, the light-emitting area can be effectively expanded, and only one LED light source 3 is used to realize the emission of two light paths, which not only expands the light-emitting area, but also saves the number of LEDs, and the lighting is uniform and efficient.
[0048] The horizontal projection distances of the total reflection surface I 201 , the total reflection surface II 202 and the total reflection surface III 203 are all A1, and the horizontal projection distance of the outermost contour of the concentrator 1 is L, where L≥A1.
[0049] Therefore, the horizontal projection distance of the total reflection surface I201 is A1, then the light output width of the first light path is A1, the horizontal projection distance of the total reflection surface IV204 is A5, then the light output width of the second light path is A5, therefore the total light output width = A1 + A5, compared to the light output width of a single output light path of the traditional scheme is L, the total light output width of the present invention is A1 + A5 > L; wherein L ≥ A1 ensures that the total reflection surface I201 can be fully illuminated, and the light reflected by the total reflection surface I201 can be uniform.
[0050] The vertical projection distances between the total reflection surface III 203 and the total reflection surface IV 204 are equal and are both A2, where A1 ≥ A2.
[0051] Therefore, the equal vertical projection distance can ensure that the light on the total reflection surface III 203 can be totally reflected to the total reflection surface IV 204 , and A1 ≥ A2 can also ensure that the total reflection surface IV 204 can be fully illuminated, so that the light reflected by the total reflection surface IV 204 can be uniform.
[0052] The vertical projection distance of the total reflection surface I 201 is A3, and the vertical projection distance of the total reflection surface II 202 is A4, where A3=A4=L / 2.
[0053] Therefore, this design can divide the light after passing through the concentrator 1 into two equal parts, and ultimately make the light emitted through the first optical path and the light emitted through the second optical path evenly distributed, thereby improving the lighting uniformity. The specific proportion relationship is adjusted according to actual application requirements.
[0054] The angles between the total reflection surface I 201 , the total reflection surface II 202 , the total reflection surface III 203 and the total reflection surface IV 204 and the emitted light are all 40° to 50°.
[0055] like Figure 7 As shown, the angle θ1 between the total reflection surface I 201 and the outgoing light is 40° to 50°; the angle θ2 between the total reflection surface II 202 and the outgoing light is 40° to 50°, and the total reflection surface I 201 and the total reflection surface II 202 are located above the concentrator 1.
[0056] like Figures 5 and 6 As shown, the angle β between the total reflection surface III 203 and the emergent light is 40° to 50°; the angle α between the total reflection surface IV 204 and the emergent light is 40° to 50°, the total reflection surface III 203 and the total reflection surface IV 204 are located on one side of the concentrator 1, the total reflection surface III 203 is opposite to the total reflection surface II 202, and the total reflection surface IV 204 is staggered with the total reflection surface I 201, so the first light path and the second light path will not overlap and finally emerge from the light-emitting surface 205 in parallel, effectively expanding the light-emitting area.
[0057] Light distribution patterns or leather textures are provided on the total reflection surface I 201, the total reflection surface II 202, the total reflection surface III 203, and the total reflection surface IV 204. Thus, the light diffusion effect can be further achieved by providing the light distribution patterns or leather textures.
[0058] Light distribution patterns or leather textures are provided on the total reflection surface I 201, the total reflection surface II 202, the total reflection surface III 203, and the total reflection surface IV 204. Thus, the light diffusion effect can be further achieved by providing the light distribution patterns or leather textures.
[0059] More preferably, the total reflection surface I 201, the total reflection surface II 202, the total reflection surface III 203 and the total reflection surface IV 204 are all polished surfaces. The surface of the polished surface is smoother and can more effectively reflect the incident light according to the reflection normal in the same direction, that is, to achieve total reflection without diffusion, and the energy utilization is higher and more concentrated. The polishing process can significantly improve the transmission efficiency and brightness of light, thereby improving the performance of the car lights.
[0060] The size and type of the concentrator 1 can be adjusted according to the use requirements. It can be a circular concentrator, a nested concentrator or a stretched concentrator, etc. It can also be added with patterns and leather grain structures to further achieve the diffusion effect of light according to the uniformity requirements.
[0061] In an optional implementation, microstructures such as patterns of corn kernels or leather grains may be added to the light emitting surface 205 of this embodiment to further achieve a light diffusion effect.
[0062] Example 2:
[0063] Based on the thick-walled component structure of Example 1, this embodiment provides a vehicle lamp, including: a light source 3 and the thick-walled component structure of Example 1.
[0064] The light source 3 is red, white, yellow or a combination of the two.
[0065] Therefore, the color of the LED light source 3 is not limited, and one or a combination of any two can be selected according to the actual functional application. More specifically, when the headlight has only one function, the color of the light source 3 can be one of red, white, and yellow; when the present invention needs to be applied to a headlight with multiple functions, for example, the headlight has a steering function and a position adjustment function, the color of the light source 3 can be any two combinations, the steering function corresponds to one color, and the position adjustment function corresponds to another color.
[0066] In summary, the beneficial effects of the present invention are:
[0067] (1) The present invention introduces light into the thick-walled body 2 by providing a concentrator 1;
[0068] (2) The present invention uses the design of total reflection surface I 201, total reflection surface II 202, total reflection surface III 203 and total reflection surface IV 204 to form two different light paths, namely a first light path and a second light path, after the light enters the thick-walled component body 2, and the two light paths are finally emitted from the light-emitting surface 205 in parallel, that is, the effective utilization of the light emitted by the light source 3 is improved by the cooperation of the two different light paths. Under this structural design, the light-emitting area can be effectively expanded compared with the thick-walled component with a single light path, and only one LED light source 3 is used to realize the emission of two light paths, which not only expands the light-emitting area, but also saves the number of LEDs, and the lighting is uniform and efficient.
[0069] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification and must be determined according to the scope of the claims.
Claims
1. A thick-walled structure for enlarging the light output area, characterized in that: include: A concentrator (1) and a thick-walled member body (2), wherein the concentrator (1) is arranged on one end of the thick-walled member body (2); One end of the thick-walled member body (2) is provided with a total reflection surface I (201) and a total reflection surface II (202) arranged in opposite directions, and a total reflection surface III (203) and a total reflection surface IV (204) arranged in opposite directions; the concentrator (1) is located below the total reflection surface I (201) and the total reflection surface II (202); the other end of the thick-walled member body (2) is provided with a light emitting surface (205); the total reflection surface I (201) and the total reflection surface IV (204) are staggered and both face the light emitting surface (205); Part of the light is totally reflected by the total reflection surface I (201) and then emitted from the light-emitting surface (205) to form a first light path, and another part of the light is totally reflected by the total reflection surface II (202), the total reflection surface III (203) and the total reflection surface IV (204) in sequence and then emitted from the light-emitting surface (205) to form a second light path.
2. A thick-walled component structure for enlarging the light output area according to claim 1, characterized in that: The horizontal projection distances of the total reflection surface I (201), the total reflection surface II (202) and the total reflection surface III (203) are all A1, and the horizontal projection distance of the outermost contour of the concentrator (1) is L, where L≥A1.
3. A thick-walled structure for enlarging the light output area according to claim 2, characterized in that: The vertical projection distances between the total reflection surface III (203) and the total reflection surface IV (204) are equal and are both A2, where A1≥A2.
4. A thick-walled component structure for enlarging the light output area according to claim 2, characterized in that: The vertical projection distance of the total reflection surface I (201) is A3, and the vertical projection distance of the total reflection surface II (202) is A4, wherein A3=A4=L / 2.
5. The thick-walled component structure for enlarging the light output area according to claim 1, characterized in that: The angles between the total reflection surface I (201), the total reflection surface II (202), the total reflection surface III (203) and the total reflection surface IV (204) and the emitted light are all 40° to 50°.
6. The thick-walled component structure for enlarging the light output area according to claim 1, characterized in that: The total reflection surface I (201), the total reflection surface II (202), the total reflection surface III (203) and the total reflection surface IV (204) are all provided with light distribution patterns or leather patterns.
7. The thick-walled component structure for enlarging the light output area according to claim 1, characterized in that: The concentrator (1) is a circular concentrator, a nested concentrator or a stretched concentrator.
8. The thick-walled component structure for enlarging the light output area according to claim 1, characterized in that: The number of the concentrators (1) and the number of the thick-walled member bodies (2) are the same and both are multiple, and the multiple thick-walled member bodies (2) and the multiple concentrators (1) are arranged in sequence along the horizontal direction.
9. A vehicle lamp, characterized in that: It comprises a light source (3) and a thick-walled structure for enlarging the light output area as described in any one of claims 1 to 8, wherein the light source (3) is arranged corresponding to the light incident end of the concentrator (1).
10. The vehicle lamp according to claim 9, characterized in that: The light source (3) is red, white, yellow or a combination of the two.