LED ultra-narrow light-emitting large-spacing thick-wall part and vehicle lamp

Abstract

The utility model belongs to the technical field of automobile lamps, and discloses an LED ultra-narrow light-emitting large-interval thick-wall part and an automobile lamp. The LED ultra-narrow light-emitting inclined large-interval thick-wall piece comprises a front thick-wall piece and a rear thick-wall piece which are arranged in parallel front and back. The rear thick-wall piece comprises a plurality of light guide units I which are distributed side by side, and each light guide unit I comprises a first light incident part, a first total reflection part and a first light emergent surface; the front thick-wall piece comprises a second light-in part, a second total reflection part and a second light-out surface, and the second light-in part is located on the outer side of the first light-out surface; the second light incident part is provided with a plurality of V-shaped grooves, the V-shaped grooves divide the second light incident part into two or more light guide units II which are distributed side by side, the light incident surfaces of the light guide units II are provided with second light condensation structures, and the second light condensation structures correspond to the first light condensation structures one by one. The front thick-wall piece and the rear thick-wall piece are both arranged in an inclined mode, and the LED can directly face the condenser. Meanwhile, an extremely narrow light emitting structure is provided, the occupied space is small, and the light emitting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to an LED extremely narrow light output, large spacing, thick-walled component and an automobile lamp. Background Art

[0002] With the rapid development of automotive lighting technology and consumers' increasing demand for lighting effects, production costs and efficiency are becoming urgent challenges for automotive lighting suppliers. Existing solutions require light from the LED to pass through a series of devices before exiting from the light-emitting surface to achieve more uniform lighting. However, due to the complex design of traditional projects, the PCB often needs to be tilted, preventing the LED from directly facing the concentrator, resulting in significant light loss and poor lighting efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an LED extremely narrow light output, large spacing, thick wall component and a vehicle lamp. The LED extremely narrow light output, inclined, large spacing, thick wall component has an extremely narrow light output structure, occupies a small space, and has high light output efficiency.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An LED ultra-narrow light output large-pitch thick-walled component, comprising a front thick-walled component and a rear thick-walled component arranged in parallel, the rear thick-walled component comprising two or more light guide units I arranged side by side, each light guide unit I comprising a first light incident portion, a first total reflection portion, and a first light emitting surface arranged in sequence from the light incident side to the light emitting side;

[0006] The first light-emitting surface includes a first light-concentrating structure distributed in a stepped manner, and the first light-concentrating structure is a curved surface;

[0007] The front thick-walled member includes a second light incident portion, a second total reflection portion, and a second light emitting surface, which are arranged in sequence from the light incident side to the light emitting side, wherein the second light incident portion is located outside the first light emitting surface; and the wall thickness increases gradually from the second light incident portion to the second total reflection portion;

[0008] The second light incident portion is provided with a plurality of V-shaped grooves, which divide the second light incident portion into two or more light guide units II distributed side by side. The light incident surface of the light guide unit II is provided with a second light focusing structure, which corresponds one-to-one to the first light focusing structure.

[0009] In addition, the front and rear thick-walled parts can be tilted or not, depending on the use requirements. If the front and rear thick-walled parts can be tilted, the LED can face the concentrator directly, reducing light loss and greatly improving light efficiency.

[0010] Furthermore, the first total reflection portion includes an upper portion and a lower portion distributed vertically, the upper portion is provided with a U-shaped groove, the opening of the U-shaped groove is arranged away from the first light emitting surface, and the first light incident portion is installed at the opening of the U-shaped groove; two end surfaces of the opening of the U-shaped groove form an eighth total reflection surface and a ninth total reflection surface that are arranged obliquely; the inner wall of the U-shaped groove opposite to the opening forms a third total reflection surface;

[0011] The center of the lower part is provided with a large protrusion running through the lower part, the cross section of the large protrusion is an isosceles triangle, the two sides of the large protrusion form a first total reflection surface and a second total reflection surface, and the center line of the large protrusion is perpendicular to the center line of the U-shaped groove;

[0012] The lower part is also provided with two small protrusions distributed side by side, the cross-section of the small protrusion is an isosceles triangle, the small protrusion is located on one side of the large protrusion and is arranged close to the first light incident portion; the fourth total reflection surface and the fifth total reflection surface are formed on both sides of the small protrusion close to the eighth total reflection surface, and the sixth total reflection surface and the seventh total reflection surface are formed on both sides of the small protrusion close to the ninth total reflection surface.

[0013] Furthermore, the first total reflection surface forms an angle of 40 to 50 degrees with the incident light, and the angle between the second total reflection surface and the first total reflection surface is 85 to 95 degrees;

[0014] The second total reflection surface and the third total reflection surface are arranged in parallel and the third total reflection surface is located directly above the second total reflection surface. The eighth total reflection surface and the ninth total reflection surface are located on the same plane and this plane is arranged parallel to the third total reflection surface.

[0015] Furthermore, the fifth total reflection surface and the sixth total reflection surface both form an angle of 40 to 50° with the incident light; the angle between the fourth total reflection surface and the fifth total reflection surface is 85 to 95°, and the angle between the sixth total reflection surface and the seventh total reflection surface is 85 to 95°.

[0016] Furthermore, the first total reflection surface and the second total reflection surface are arranged bilaterally symmetrically, the fourth total reflection surface and the fifth total reflection surface are arranged bilaterally symmetrically, and the sixth total reflection surface and the seventh total reflection surface are arranged bilaterally symmetrically.

[0017] Furthermore, the first light-concentrating structure has a convex curved surface, and the second light-concentrating structure has a concave curved surface.

[0018] Furthermore, the U-shaped groove is a square groove, and the focus of the first light incident portion is located on the central axis of the U-shaped groove.

[0019] Furthermore, the large protrusion and the small protrusion have the same height.

[0020] Furthermore, the second light emitting surface is provided with a corn kernel light distribution pattern.

[0021] A vehicle lamp comprises the aforementioned LED extremely narrow light output, inclined light output, large spacing and thick wall component.

[0022] The beneficial effects of the present invention are as follows: the present invention has a simple structure and has the following advantages:

[0023] (1) The front thick-walled parts and the rear thick-walled parts can be tilted so that the LED can face the concentrator directly, reducing light loss and greatly improving light efficiency;

[0024] (2) The light emitted by the first light incident portion can be evenly divided into the front light and the rear light. The first total reflection portion can bend and reflect the front light and the front light respectively on the light emitted from the first light incident portion; the left light in the rear light is totally reflected three times by the sixth total reflection surface, the seventh total reflection surface and the ninth total reflection surface in sequence and then emitted in parallel; the right light is totally reflected three times by the fifth total reflection surface, the fourth total reflection surface and the eighth total reflection surface in sequence and then emitted in parallel; the total reflection system has the same number of total reflections of three times for all light rays, ensuring that all light paths are the same, making the emitted light more uniform. Light rays bent in different directions are finally emitted from the same first light-emitting surface;

[0025] (3) The first focusing structure focuses these parallel light rays on the focal point O to form a bright light spot. The light emitted from the focal point O passes through the second focusing structure and enters the second light entrance portion. The second focusing structure will focus the vertical light to the focal point, and after focusing on the focal point, it will be refracted to the upper and lower inclined side walls of the second total reflection portion for total reflection; at the same time, the second focusing structure will diffuse the horizontal light and disperse it to the left and right inclined side walls of the second total reflection portion for reflection; the second focusing structure and the second total reflection portion work together to improve the uniformity of lighting, and can also make the angle of the emitted light relatively concentrated, thereby improving the energy utilization rate of the light source, while taking into account the extremely narrow light output effect of the second light output surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the structure of the thick-walled component with extremely narrow LED light output and large spacing in Example 1;

[0028] Figure 2 yes Figure 1 Front view of

[0029] Figure 3 yes Figure 1 Rear view;

[0030] Figure 4 yes Figure 1 A top view of

[0031] Figure 5 yes Figure 1 Bottom view of

[0032] Figure 6 yes Figure 1 Side view of;

[0033] Figure 7 yes Figure 4 Cross-sectional view along the AA axis;

[0034] Figure 8 This is the light path diagram of the vertical direction of the LED with extremely narrow light output, inclined with large spacing and thick wall parts in the utility model;

[0035] Figure 9 This is the light path diagram of the LED in the utility model with extremely narrow light output, inclined light output, large spacing and thick wall parts in the horizontal direction;

[0036] Figure 10 This is the upward and side view light path diagram of the LED extremely narrow light output, inclined large spacing and thick wall component in the utility model.

[0037] In the figure: 100. Front thick-walled part, 200. Rear thick-walled part, 1. First light incident part, 2. First total reflection part, 3. First light output surface, 4. Second light incident part, 5. Second total reflection part, 6. Second light output surface, 7. Recessed cavity, 21. First total reflection surface, 22. Second total reflection surface, 23. Third total reflection surface, 24. Fourth total reflection surface, 25. Fifth total reflection surface, 26. Sixth total reflection surface, 27. Seventh total reflection surface, 28. Eighth reflection surface, 29. Ninth reflection surface, 31. First focusing structure, 41. Second focusing structure. DETAILED DESCRIPTION

[0038] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this application belongs.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular also includes the plural. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1

[0042] like Figures 1 to 7 The LED ultra-narrow light output large spacing thick-walled component shown in the figure includes a front thick-walled component 100 and a rear thick-walled component 200 arranged in parallel front and back, and the front thick-walled component 100 and the rear thick-walled component 200 are respectively inclined; the rear thick-walled component 200 includes two or more light guide units I distributed side by side, and each light guide unit I includes a first light input part 1, a first total reflection part 2 and a first light output surface 3 arranged in sequence from the light input side to the light output side; the first total reflection part 2 includes an upper part and a lower part distributed up and down, the upper part is provided with a U-shaped groove, the opening of the U-shaped groove is arranged away from the first light output surface 3, and the first light input part 1 is installed at the opening of the U-shaped groove; the two end surfaces of the U-shaped groove opening form an eighth total reflection surface 28 and a ninth total reflection surface 29 arranged inclined; the U-shaped groove is opposite to the opening A third total reflection surface 23 is formed on the inner wall; a large protrusion running through the lower part is provided in the center of the lower part, and the cross-section of the large protrusion is an isosceles triangle. A first total reflection surface 21 and a second total reflection surface 22 are formed on both sides of the large protrusion, and the center line of the large protrusion is perpendicular to the center line of the U-shaped groove; the lower part is also provided with two small protrusions symmetrically distributed side by side, and the cross-section of the small protrusion is an isosceles triangle. The small protrusion is located on one side of the large protrusion and is arranged close to the first light incident part 1; a fourth total reflection surface 24 and a fifth total reflection surface 25 are formed on both sides of the small protrusion close to the eighth total reflection surface 28, and a sixth total reflection surface 26 and a seventh total reflection surface 27 are formed on both sides of the small protrusion close to the ninth total reflection surface 29; the first light exit surface 3 includes a first light-concentrating structure 31 distributed in a stepped manner, and the first light-concentrating structure 31 is a curved surface.

[0043] The front thick-walled part 100 includes a second light input portion 4, a second total reflection portion 5 and a second light output surface 6 which are arranged in sequence from the light input side to the light output side. The second light input portion 4 is located outside the first light output surface 3, and the wall thickness increases gradually from the second light input portion 4 to the second total reflection portion 5. The second light input portion 4 is provided with a plurality of V-shaped grooves, which divide the second light input portion 4 into two or more light guide units II distributed side by side. The light input surface of the light guide unit II is provided with a second light focusing structure 41, and the second light focusing structure 41 corresponds one-to-one to the first light focusing structure 31.

[0044] The front thick-walled member 100 and the rear thick-walled member 200 are both tilted, so that the LED can face the concentrator directly, thereby reducing light loss and greatly improving light efficiency.

[0045] The front thick-walled part 100 and the rear thick-walled part 200 can be produced in a pair of molds.

[0046] The first total reflection surface 21 forms an angle of 40 to 50 degrees with the incident light, and the second total reflection surface 22 forms an angle of 85 to 95 degrees with the first total reflection surface 21 .

[0047] The second total reflection surface 22 and the third total reflection surface 23 are arranged in parallel and the third total reflection surface 23 is located directly above the second total reflection surface 22 . The eighth total reflection surface 28 and the ninth total reflection surface 29 are located on the same plane and this plane is arranged parallel to the third total reflection surface 23 .

[0048] The fifth total reflection surface 25 and the sixth total reflection surface 26 both form an angle of 40 to 50 degrees with the incident light; the angle between the fourth total reflection surface 24 and the fifth total reflection surface 25 is 85 to 95 degrees, and the angle between the sixth total reflection surface 26 and the seventh total reflection surface 27 is 85 to 95 degrees.

[0049] The first total reflection surface 21 and the second total reflection surface 22 are arranged symmetrically, the fourth total reflection surface 24 and the fifth total reflection surface 25 are arranged symmetrically, and the sixth total reflection surface 26 and the seventh total reflection surface 27 are arranged symmetrically.

[0050] The first light-concentrating structure 31 has a convex curved surface, and the second light-concentrating structure 41 has a concave curved surface.

[0051] The U-shaped groove is a square groove, and the focus of the first light entrance part 1 is located on the central axis of the U-shaped groove. The width of the eighth total reflection surface 28 and the ninth total reflection surface 29 are respectively half the length of the side of the U-shaped groove. The large protrusion and the small protrusion are of the same height. This design can ensure that the light emitted by the LED has the same optical path in the front and rear directions. In other words, the light emitted by the LED undergoes total reflection in the front direction and total reflection in the rear direction respectively, and reaches the first light-emitting surface 3 at the same time, with good uniformity, and will not cause problems of bright and dark light.

[0052] The second light emitting surface 6 is provided with a corn kernel light distribution pattern.

[0053] A vehicle lamp comprises the aforementioned LED extremely narrow light output, inclined light output, large spacing and thick wall component.

[0054] The first light incident portion 1 is a collimated light focusing structure, and the LED light source is not limited to a color, and can be a single color red, white, yellow, or a combination of two of these colors, etc. The thick-walled member of the present invention can be made of transparent materials such as PMMA or PC.

[0055] Figure 8 This is the light path diagram of the vertical direction of the LED with extremely narrow light output and large spacing and thick wall parts in this utility model. Figure 9 is the horizontal light path diagram, Figure 10 This is the optical path diagram viewed from the side.

[0056] Depend on Figures 8 to 10 It can be seen that the focus of the first light incident part 1 is located on the central axis of the U-shaped groove, that is, the light emitted by the first light incident part 1 can be evenly divided into front light and rear light, and the first total reflection part 2 can be used to bend and reflect the front light and the rear light of the light emitted by the first light incident part 1 respectively.

[0057] The bending and reflection of the front light is achieved by the following structure: the front light emitted from the first light incident portion 1 is totally reflected three times by the first total reflection surface 21, the second total reflection surface 22 and the third total reflection surface 23 in sequence and then emitted in parallel.

[0058] The bending and reflection of the rear light is divided into left and right bending and reflection. The small protrusion on the left bends the light to the left, and the small protrusion on the right bends the light to the right. Specifically, the left light passes through the sixth total reflection surface 26, the seventh total reflection surface 27, and the ninth total reflection surface 29 three times in sequence and then emits in parallel; the right light passes through the fifth total reflection surface 25, the fourth total reflection surface 24, and the eighth total reflection surface 28 three times in sequence and then emits in parallel. The total reflection system has the same number of total reflections of three for all light rays, ensuring that all light paths are the same, making the emitted light more uniform. Light rays bent in different directions are ultimately emitted from the same first light-emitting surface 3.

[0059] In this embodiment, each light-guiding unit I is provided with four first light-focusing structures 31. The first light-focusing structures 31 focus the parallel light rays after being bent in different directions on the focal point O to form a bright light spot. Each light-guiding unit I forms four bright light spots. The light from the focal point O passes through the second light-focusing structure 41 and enters the second light-entering portion 4. The second light-focusing structure 41 will focus the vertical light to the focal point. After focusing on the focal point, it will be refracted to the upper and lower inclined side walls of the second total reflection portion 5 for total reflection. At the same time, the second light-focusing structure 41 will diffuse the horizontal light and disperse it to the left and right inclined side walls of the second total reflection portion 5 for reflection. The second light-focusing structure 41 and the second total reflection portion 5 work together to improve the uniformity of lighting, and can also make the angle of the emitted light relatively concentrated, thereby improving the energy utilization rate of the light source, while taking into account the extremely narrow light-emitting effect of the second light-emitting surface 6.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thick-walled LED component with extremely narrow light output and large spacing, characterized by: It comprises a front thick-walled member (100) and a rear thick-walled member (200) arranged in parallel in front and back; the rear thick-walled member (200) comprises two or more light guide units I arranged side by side, each light guide unit I comprising a first light entrance portion (1), a first total reflection portion (2) and a first light exit surface (3) arranged in sequence from the light entrance side to the light exit side; The first light-emitting surface (3) comprises a first light-concentrating structure (31) distributed in a stepped manner, and the first light-concentrating structure (31) is a curved surface; The front thick-walled member (100) comprises a second light-entering portion (4), a second total reflection portion (5), and a second light-emitting surface (6) arranged in sequence from the light-entering side to the light-emitting side, the second light-entering portion (4) being located outside the first light-emitting surface (3); and the wall thickness increases gradually from the second light-entering portion (4) to the second total reflection portion (5); The second light entrance portion (4) is provided with a plurality of V-shaped grooves, which divide the second light entrance portion (4) into two or more light guide units II that are arranged side by side. The light entrance surface of the light guide unit II is provided with a second light focusing structure (41), and the second light focusing structure (41) corresponds one-to-one to the first light focusing structure (31).

2. The LED extremely narrow light output, large spacing, thick-walled component according to claim 1, characterized in that: The first total reflection portion (2) comprises an upper portion and a lower portion distributed vertically, the upper portion being provided with a U-shaped groove, the opening of the U-shaped groove being arranged away from the first light-emitting surface (3), and the first light-entering portion (1) being installed at the opening of the U-shaped groove; the two end surfaces of the opening of the U-shaped groove forming an eighth total reflection surface (28) and a ninth total reflection surface (29) which are arranged obliquely; the inner wall of the U-shaped groove opposite to the opening forms a third total reflection surface (23); A large protrusion is provided at the center of the lower portion and passes through the lower portion. The cross section of the large protrusion is an isosceles triangle. A first total reflection surface (21) and a second total reflection surface (22) are formed on both sides of the large protrusion. The center line of the large protrusion is perpendicular to the center line of the U-shaped groove. The lower portion is further provided with two small protrusions symmetrically distributed side by side, the cross-section of the small protrusions being an isosceles triangle, the small protrusions being located on one side of the large protrusion and being arranged close to the first light entrance portion (1); a fourth total reflection surface (24) and a fifth total reflection surface (25) are formed on both sides of the small protrusion close to the eighth total reflection surface (28), and a sixth total reflection surface (26) and a seventh total reflection surface (27) are formed on both sides of the small protrusion close to the ninth total reflection surface (29).

3. The LED extremely narrow light output, large spacing, thick-walled component according to claim 2, characterized in that: The first total reflection surface (21) forms an angle of 40 to 50 degrees with the incident light, and the second total reflection surface (22) forms an angle of 85 to 95 degrees with the first total reflection surface (21); The second total reflection surface (22) and the third total reflection surface (23) are arranged in parallel, and the third total reflection surface (23) is located directly above the second total reflection surface (22); the eighth total reflection surface (28) and the ninth total reflection surface (29) are located on the same plane, and this plane is arranged parallel to the third total reflection surface (23).

4. The LED extremely narrow light output, large spacing, thick-walled component according to claim 2, characterized in that: The fifth total reflection surface (25) and the sixth total reflection surface (26) both form an angle of 40 to 50 degrees with the incident light; the angle between the fourth total reflection surface (24) and the fifth total reflection surface (25) is 85 to 95 degrees, and the angle between the sixth total reflection surface (26) and the seventh total reflection surface (27) is 85 to 95 degrees.

5. The LED extremely narrow light output, large spacing, thick-walled component according to claim 2, characterized in that: The first total reflection surface (21) and the second total reflection surface (22) are arranged symmetrically on the left and right, the fourth total reflection surface (24) and the fifth total reflection surface (25) are arranged symmetrically on the left and right, and the sixth total reflection surface (26) and the seventh total reflection surface (27) are arranged symmetrically on the left and right.

6. The LED extremely narrow light output, large spacing, thick-walled component according to claim 2, characterized in that: The large protrusion and the small protrusion have the same height.

7. The LED extremely narrow light output, large spacing, thick-walled component according to claim 1, characterized in that: The first light-concentrating structure (31) is a convex curved surface, and the second light-concentrating structure (41) has a concave curved surface.

8. The LED extremely narrow light output, large spacing, thick-walled component according to claim 1, characterized in that: The front thick-walled part (100) and the rear thick-walled part (200) are respectively arranged at an inclination.

9. The LED extremely narrow light output, large spacing, thick-walled component according to claim 2, characterized in that: The U-shaped groove is a square groove, and the focus of the first light incident portion (1) is located on the central axis of the U-shaped groove.

10. A vehicle lamp, characterized in that: The invention comprises the LED extremely narrow light output, inclined light output, large spacing and thick wall component as described in any one of claims 1 to 9.

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