Light-emitting diode (LED) side-punched thick-wall light guide

Abstract

The utility model relates to an LED (light-emitting diode) side-hitting thick-wall light guide, which comprises a first thick-wall light guide, the first thick-wall light guide comprises a plurality of groups of reflection modules, arc-shaped refraction walls are constructed on the side surfaces, opposite to a first thick-wall light-emitting surface, of the reflection modules, and two ends of each arc-shaped refraction wall approach to the first thick-wall light-emitting surface; a plurality of reflecting surfaces are arranged on the inner side of the reflecting module and located over the reflecting bowl, and the reflecting surfaces comprise at least one first reflecting inclined surface obliquely facing the reflecting bowl and the arc-shaped refraction wall and a second reflecting inclined surface obliquely facing the reflecting bowl and the first thick-wall light-emitting surface. In the scheme, the reflecting surface in the thick-wall light guide is constructed into the first reflecting inclined surface and the second reflecting inclined surface, the second reflecting inclined surface can directly reflect the emergent light to the light emitting surface, and the first reflecting inclined surface can refract the light to the arc-shaped refracting wall and then project the light to the light emitting surface, so that the light emitting range of the single LED is increased; the number of LED particles can be reduced on the same light-emitting surface length, so that the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to an LED side-mounted thick-wall light guide. Background Art

[0002] The existing LED side-mounted thick-walled light guide uses the LED side-mounted method, and the LED passes through the thick-walled light guide reflective surface and is directly reflected to the corn grain pattern at the light outlet (such as Figure 7 As shown), this type of LED light output cannot efficiently utilize the light output efficiency of LED particles. Under the same light output surface size, multiple LEDs are required to achieve uniformity and pass regulations (generally with a spacing of 10mm), which increases costs. Summary of the invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a LED side-mounted thick-walled light guide, which reduces the number of LED particles and reduces costs on the same light-emitting surface length; at the same time, makes the LED light more uniform and the visible light distribution at various angles easier to pass.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] An LED side-mounted thick-walled light guide comprises an LED light board and a thick-walled light guide mounted on the LED light board, wherein a plurality of LED particles are arranged on the LED light board; the thick-walled light guide comprises a first thick-walled light guide located above the LED light board, wherein the first thick-walled light guide comprises a plurality of groups of reflection modules, and a first thick-walled light-emitting surface formed on the side surfaces of the plurality of groups of reflection modules, wherein a group of reflection modules is correspondingly arranged above an LED particle, and a reflection cavity is formed inside the reflection module;

[0006] A reflective bowl is formed at the lower end of the reflective module just above the LED particles, and an arc-shaped refractive wall is constructed on the side of the reflective module relative to the first thick-walled light-emitting surface, with both ends of the arc-shaped refractive wall approaching the first thick-walled light-emitting surface; the upper end of the reflective module is recessed downward to form a groove, and the inner side of the groove forms a plurality of reflective surfaces located just above the reflective bowl in the reflective cavity, and the plurality of reflective surfaces include at least one first reflective inclined surface inclined toward the reflective bowl and the arc-shaped refractive wall, and a second reflective inclined surface inclined toward the reflective bowl and the first thick-walled light-emitting surface.

[0007] Preferably, the plurality of reflecting surfaces include two first reflecting bevels and one second reflecting bevel connected and set at a certain angle, the two first reflecting bevels are arranged on both sides of the arc-shaped refractive wall, and the side surfaces extend to fit against the inner wall of the arc-shaped refractive wall.

[0008] Preferably, the side surface of the arc-shaped refractive wall is corrugated.

[0009] Preferably, the thick-walled light guide also includes a second thick-walled light guide, the upper end of the second thick-walled light guide is connected to the first thick-walled light guide, the outer end side surface of the second thick-walled light guide forms a second thick-walled light emitting surface, and the inner end side surface of the second thick-walled light guide forms a second thick-walled light receiving surface spaced opposite to the first thick-walled light emitting surface.

[0010] Preferably, a first tooth portion is constructed at the outer end of the first thick-walled light-emitting surface along its length direction.

[0011] Preferably, a second tooth portion is constructed at the outer end of the second thick-walled light-contacting surface along its length direction opposite to the first tooth portion.

[0012] Preferably, a light distribution pattern is provided on the second thick-walled light-emitting surface, and the light distribution pattern includes a first visible viewing angle pattern and a second visible viewing angle pattern, the first visible viewing angle pattern is an evenly arranged corn kernel pattern, and the second visible viewing angle pattern is an evenly arranged irregular shaped pattern.

[0013] The utility model adopts the above technical scheme, and through the side-placed LED, part of the light emitted by the LED passes through the reflective bowl and directly comes out from the first thick-walled light-emitting surface through the second reflecting bevel of the first thick-walled light guide, and another part of the light is refracted through the first reflecting bevel of the first thick-walled light guide to the arc-shaped refractive wall on one side of the first thick-walled light guide, and the light is refracted out of the first thick-walled light-emitting surface, thereby increasing the light-emitting range of a single LED and further improving the light-emitting efficiency of the LED (LED spacing is above 15mm), and can reduce the number of LED particles on the same light-emitting surface length, thereby reducing costs.

[0014] In addition, the LED side-mounted thick-walled light guide adopts a two-stage thick-walled structure, namely the first thick-walled light guide and the second thick-walled light guide. After the light goes out of the first thick-walled light-emitting surface, it needs to pass through the second thick-walled light-receiving surface and the second thick-walled light-emitting surface before finally being emitted. Therefore, after being transmitted through multiple surfaces, the light will become uniform and soft, thereby improving the uniformity of the light.

[0015] In addition, two types of light distribution patterns, corn kernel pattern and special-shaped pattern, are constructed on the second thick-walled light-emitting surface to increase the visible viewing angle light distribution range and make it easier to pass the visible viewing angle light distribution at all angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front structure of an LED side-mounted thick-walled light guide.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of an LED side-mounted thick-walled light guide.

[0018] Figure 3 It is a schematic diagram of the arrangement of the first reflective inclined surface and the arc-shaped refractive wall on the first thick-walled light guide.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of an LED side-mounted thick-walled light guide from another perspective.

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the thick-walled light guide.

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the thick-walled light guide from another perspective.

[0022] Figure 7 This is a simplified diagram showing the light output of an existing LED side-mounted thick-walled light guide. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] 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", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] like Figures 1 to 6 The LED side-mounted thick-walled light guide shown in the figure comprises an LED light board 1 and a thick-walled light guide 2 mounted on the LED light board 1, and a plurality of LED particles 3 are arranged on the LED light board 1; the thick-walled light guide 2 comprises a first thick-walled light guide 4 located above the LED light board 1, and the first thick-walled light guide 4 comprises a plurality of groups of reflection modules 5, and a first thick-walled light emitting surface 6 formed on the side surfaces of the plurality of groups of reflection modules 5, and a group of reflection modules 5 is correspondingly arranged above one LED particle 3, and a reflection cavity is formed inside the reflection module 5;

[0029] The lower end of the reflection module 5 is formed with a reflective bowl 7 just above the LED particle 3, and the side of the reflection module 5 opposite to the first thick-walled light-emitting surface 6 is constructed with an arc-shaped refractive wall 8, and the two ends of the arc-shaped refractive wall 8 are close to the first thick-walled light-emitting surface 6; the upper end of the reflection module 5 is recessed downward to form a groove 9, and the inner side of the groove 9 forms a plurality of reflective surfaces located just above the reflective bowl 7 in the reflection cavity, and the plurality of reflective surfaces include at least one first reflective inclined surface 10 inclined toward the reflective bowl 7 and the arc-shaped refractive wall 8, and a second reflective inclined surface 11 inclined toward the reflective bowl 7 and the first thick-walled light-emitting surface 6.

[0030] In the above technical solution, by constructing the reflective surface in the thick-walled light guide into a first reflective bevel and a second reflective bevel, the second reflective bevel can directly reflect light to the light-emitting surface, while the first reflective bevel can refract the light to the arc-shaped refractive wall and then project it to the light-emitting surface. In this way, in the length direction of the light-emitting surface, the light-emitting range of a single LED is increased, thereby improving the LED light-emitting efficiency (LED spacing is above 15mm), and the number of LED particles can be reduced on the same light-emitting surface length, thereby reducing costs.

[0031] Furthermore, the plurality of reflective surfaces include two first reflective bevels 10 and a second reflective bevel 11 connected and arranged at a certain angle, the two first reflective bevels 10 are arranged on both sides of the arc-shaped refractive wall 8, and the side surfaces extend and fit against the inner wall of the arc-shaped refractive wall 8. In this technical solution, the two first reflective bevels further increase the light output range and make maximum use of the refractive surface of the arc-shaped refractive wall. It should be noted here that, for ease of assembly, a notch is provided on the arc-shaped refractive wall to fit the side opening of the groove.

[0032] Furthermore, the side surface of the arc-shaped refractive wall 8 is corrugated. In this technical solution, the side surface of the arc-shaped refractive wall 8 is corrugated, which can improve the structural strength of the arc-shaped refractive wall and enhance the refractive effect.

[0033] Furthermore, the thick-walled light guide 2 further includes a second thick-walled light guide 18, the upper end of the second thick-walled light guide 18 is connected to the first thick-walled light guide 4, the outer end side surface of the second thick-walled light guide 18 forms a second thick-walled light emitting surface 12, and the inner end side surface of the second thick-walled light guide 18 forms a second thick-walled light receiving surface 13 spaced and opposite to the first thick-walled light emitting surface 6. In this technical solution, the thick-walled light guide adopts a two-stage structure, namely the first thick-walled light guide and the second thick-walled light guide. After the light exits the first thick-walled light emitting surface, it needs to pass through the second thick-walled light receiving surface and the second thick-walled light emitting surface to finally emit the light. Therefore, after being transmitted through multiple surfaces, the light will become uniform and soft, improving the uniformity of the light.

[0034] Furthermore, the outer end of the first thick-walled light-emitting surface 6 is constructed with a first tooth portion 14 along its length. In this technical solution, the first tooth portion 14 is provided to improve the structural strength and at the same time increase the light-emitting range of the first thick-walled light-emitting surface, making the light spread more evenly and softly.

[0035] Furthermore, the outer end of the second thick-walled light-receiving surface 13 is constructed with a second tooth portion 15 along its length direction relative to the first tooth portion 14. In this technical solution, the second tooth portion 15 is provided to improve the structural strength, further disperse the light from the second thick-walled light-receiving surface to the second thick-walled light-emitting surface, and further improve the uniformity of the light.

[0036] Further, the second thick-walled light-emitting surface 12 is provided with a light distribution pattern, and the light distribution pattern includes a first visual angle pattern and a second visual angle pattern, wherein the first visual angle pattern is a uniformly arranged corn kernel pattern 16, and the second visual angle pattern is a uniformly arranged special-shaped pattern 17. In this technical solution, two light distribution patterns, corn kernel pattern and special-shaped pattern, are constructed on the second thick-walled light-emitting surface, which improves the visual angle light distribution range and makes it easier to pass the visual angle light distribution at various angles. It should be noted here that the special-shaped pattern in this case is a pattern style with an oblique cut surface at a certain angle on the outer end face, and it can also be other pattern styles that can improve the visual angle light distribution range by cooperating with the corn kernel pattern. It should also be noted that the uniform distribution of the special-shaped pattern here is to set the pattern on six vertical rows in the left, middle and right three places on the second thick-walled light-emitting surface, and all are set on the upper two horizontal rows and the lower three horizontal rows, so that the special-shaped pattern and the corn kernel pattern are more reasonably matched to improve the visual angle light distribution range.

[0037] In this specific embodiment, in order to solve the problem that the LED of the existing LED side-mounted thick-walled light guide is directly reflected onto the corn kernel pattern at the light outlet after passing through the reflective surface of the thick-walled light guide, and multiple LEDs are needed to achieve uniformity and pass regulations, the above-mentioned scheme constructs the reflective surface in the thick-walled light guide into a first reflective bevel and a second reflective bevel. After passing through the reflective bowl, part of the light emitted by the LED passes through the second reflective bevel of the first thick-walled light guide and directly comes out of the first thick-walled light-emitting surface, and another part of the light is refracted through the first reflective bevel of the first thick-walled light guide to the arc-shaped refractive wall on one side of the first thick-walled light guide, and the light is refracted out of the first thick-walled light-emitting surface, thereby increasing the light emitting range of a single LED, and further improving the LED light emitting efficiency (LED spacing is above 15mm), and can reduce the number of LED particles on the same light emitting surface length, thereby reducing costs.

[0038] In addition, the LED side-mounted thick-walled light guide adopts a two-stage thick-walled structure, namely the first thick-walled light guide and the second thick-walled light guide. After the light goes out of the first thick-walled light-emitting surface, it needs to pass through the second thick-walled light-receiving surface and the second thick-walled light-emitting surface before finally being emitted. Therefore, after being transmitted through multiple surfaces, the light will become dispersed, evenly distributed and soft, thereby improving the uniformity of the light.

[0039] In addition, two types of light distribution patterns, corn kernel pattern and special-shaped pattern, are constructed on the second thick-walled light-emitting surface to increase the visible viewing angle light distribution range and make it easier to pass the visible viewing angle light distribution at all angles.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An LED side-mounted thick-walled light guide, comprising an LED light board (1) and a thick-walled light guide (2) mounted on the LED light board (1), wherein a plurality of LED particles (3) are arranged on the LED light board (1); the characteristics are: The thick-walled light guide (2) comprises a first thick-walled light guide (4) located above the LED light board (1), the first thick-walled light guide (4) comprising a plurality of groups of reflection modules (5), and a first thick-walled light emitting surface (6) formed on the side surfaces of the plurality of groups of reflection modules (5), a group of reflection modules (5) being correspondingly arranged above an LED particle (3), and a reflection cavity being formed on the inner side of the reflection module (5); A reflective bowl (7) is formed at the lower end of the reflective module (5) just above the LED particle (3); an arc-shaped refractive wall (8) is constructed on the side of the reflective module (5) opposite to the first thick-walled light-emitting surface (6); two ends of the arc-shaped refractive wall (8) are close to the first thick-walled light-emitting surface (6); the upper end of the reflective module (5) is recessed downward to form a groove (9); the inner side of the groove (9) forms a plurality of reflective surfaces located just above the reflective bowl (7) in the reflective cavity; the plurality of reflective surfaces include at least one first reflective inclined surface (10) inclined toward the reflective bowl (7) and the arc-shaped refractive wall (8), and a second reflective inclined surface (11) inclined toward the reflective bowl (7) and the first thick-walled light-emitting surface (6).

2. The LED side-mounted thick-walled light guide according to claim 1, characterized in that: The plurality of reflection surfaces include two first reflection bevels (10) and a second reflection bevel (11) which are connected and arranged at a certain angle, the two first reflection bevels (10) being arranged on two sides relative to the arc-shaped refractive wall (8), and the side surfaces extending therefrom are adapted to abut against the inner wall of the arc-shaped refractive wall (8).

3. The LED side-mounted thick-walled light guide according to claim 2, characterized in that: The side surface of the arc-shaped refractive wall (8) is corrugated.

4. The LED side-mounted thick-walled light guide according to claim 1, characterized in that: The thick-walled light guide (2) further comprises a second thick-walled light guide (18), the upper end of the second thick-walled light guide (18) being connected to the first thick-walled light guide (4), the outer end side surface of the second thick-walled light guide (18) forming a second thick-walled light emitting surface (12), and the inner end side surface of the second thick-walled light guide (18) forming a second thick-walled light receiving surface (13) spaced apart from the first thick-walled light emitting surface (6).

5. The LED side-mounted thick-walled light guide according to claim 4, characterized in that: The outer end of the first thick-walled light-emitting surface (6) is formed with a first tooth portion (14) along its length direction.

6. The LED side-mounted thick-walled light guide according to claim 5, characterized in that: The outer end of the second thick-walled light-contacting surface (13) is formed with a second tooth portion (15) along its length direction opposite to the first tooth portion (14).

7. The LED side-mounted thick-walled light guide according to claim 6, characterized in that: The second thick-walled light-emitting surface (12) is provided with a light distribution pattern, the light distribution pattern comprising a first visible angle pattern and a second visible angle pattern, the first visible angle pattern being a uniformly arranged corn kernel pattern (16), and the second visible angle pattern being a uniformly arranged irregular shaped pattern (17).

Images