Light guide mounting structure

Abstract

The utility model belongs to the technical field of automobile headlamps, and provides a light guide installation structure which comprises a light guide support, a containing groove matched with a light guide is formed in the side wall of the light guide support, a first light guide clamping structure is fixed to the inner wall of one side of the containing groove, and a second light guide clamping structure is fixed to the inner wall of the other side of the containing groove. The first light guide clamping structure and the second light guide clamping structure jointly abut against the light guide to the interior of the containing groove. A slope-shaped first fairing structure is fixed to the side, facing the incoming light, of the first light guide card structure, and a slope-shaped second fairing structure is fixed to the side, facing the incoming light, of the second light guide card structure. According to the light guide mounting structure, the slope-shaped fairing structure is arranged on one side of the light guide card structure, so that light rays at the light guide card structure cannot be concentrated and reflected, but are diverged through the slope of the fairing structure, bright spots caused by concentrated reflection of the light rays can be avoided, and the problem that the light guide card structure lightens the light rays can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile headlights, and particularly relates to a light guide installation structure. Background Art

[0002] With the continuous advancement of automotive lighting technology, LED light guides are becoming increasingly common in automotive lighting. However, both users and manufacturers are increasingly demanding a high-quality lighting experience. Existing light guides in many automotive lighting applications suffer from poor lighting uniformity. This is because when the light guide is secured to the light guide bracket via a mounting structure, light is easily reflected and refracted at the junction of the light guide and the mounting structure. This creates visible bright spots, resulting in uneven lighting and poor appearance.

[0003] There are many common light guide installation structures, such as making flanges on the light guide to fix it on the bracket, or making an integrated clip on the light guide, which will produce bright lines, poor lighting uniformity, and affect the appearance. For example, there is a strong release clip 7 on the light guide bracket, such as Figure 1 As shown in the image above, after installing the forced release clip 7 on the light guide bracket, a bright line appears at the location of the clip during actual lighting, creating a cosmetic defect. Light tracing results indicate that the bright spot is caused by light reflected from the right side of the clip. Removing the clip to avoid the bright spot would result in an unstable light guide installation, potentially causing vibration, breakage, and malfunction during operation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a light guide installation structure, which can effectively avoid the lighting and line problems of the light guide caused by the strong detachment of the clip structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: a light guide mounting structure, comprising a light guide bracket, a side wall of the light guide bracket being provided with a receiving groove adapted for the light guide, a first light guide card structure being fixed to an inner wall on one side of the receiving groove, and a second light guide card structure being fixed to an inner wall on the other side of the receiving groove, the light guide being placed in the receiving groove, and the first light guide card structure and the second light guide card structure jointly abutting the light guide against the interior of the receiving groove;

[0006] A first sloped smoothing structure is fixed to the first light guide card structure on the side facing the incoming light, and the slope of the first smoothing structure extends from the inner wall of the accommodating groove to the side of the first light guide card structure away from the inner wall of the accommodating groove. A second sloped smoothing structure is fixed to the second light guide card structure on the side facing the incoming light, and the slope of the second smoothing structure extends from the inner wall of the accommodating groove to the side of the second light guide card structure away from the inner wall of the accommodating groove.

[0007] Preferably, the first light guide card structure is raised close to one side of the light guide, so that the first light guide card structure is in line contact with the light guide.

[0008] Preferably, the second light guide card structure is raised close to one side of the light guide, so that the second light guide card structure is in line contact with the light guide.

[0009] Preferably, a mounting groove is provided on the side wall of the light guide bracket, a positioning column is fixed in the mounting groove, a mounting portion adapted to the mounting groove is fixed on the light guide, and a positioning hole adapted to the positioning column is provided on the mounting portion.

[0010] Preferably, a screw column is fixed in the mounting groove, a screw hole corresponding to the screw column is penetrated through the mounting portion, and the screw column and the screw hole are fixed by screw locking.

[0011] Preferably, a light guide cover is further included, and the light guide cover is fixedly covered with the light guide bracket to cover part of the light guide.

[0012] Preferably, the light guide cover plate and the light guide bracket are fixed by snap-fit ​​connection.

[0013] Preferably, the first light guide card structure, the second light guide card structure, the first smoothing structure, and the second smoothing structure are all integrally formed by injection molding with the light guide bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a light guide installation structure, which sets a sloped smoothing structure on the right side of the light guide card structure. In this way, the light at the light guide card structure will not be concentratedly reflected after being emitted, but will be diverged through the inclined surface of the smoothing structure, which can avoid the concentrated reflection of light to produce bright spots, thereby solving the problem of lighting and bright lines of the light guide card structure.

[0016] 2. The utility model provides a light guide installation structure, in which the light guide card structure and the light guide are in line contact, which can avoid the formation of bright spots at the contact position between the light guide card structure and the light guide.

[0017] 3. The light guide installation structure provided by the present invention can realize the rapid installation of the light guide and the light guide bracket through the cooperation of the positioning column and the positioning hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the strong release clamp and its related parts in the prior art;

[0019] Figure 2A schematic diagram of the three-dimensional structure of a light guide installation structure provided by an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a light guide card structure and a smoothing structure of a light guide installation structure provided by an embodiment of the present utility model;

[0021] Figure 4 A schematic cross-sectional view of a smoothing structure of a light guide installation structure provided by an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of a mounting groove of a light guide mounting structure provided by an embodiment of the present utility model;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of a mounting portion of a light guide mounting structure provided by an embodiment of the present utility model;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of a light guide installation structure provided by an embodiment of the present utility model;

[0025] Figure 8 The present invention provides a schematic cross-sectional structural diagram of a light guide cover plate and related parts of a light guide installation structure provided by an embodiment of the present invention.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Light guide bracket; 2. Light guide; 3. Light guide cover; 4. Accommodating slot; 5. Mounting slot; 6. Mounting portion; 7. Forced release clip; 11. First light guide card structure; 12. Second light guide card structure; 13. First smoothing structure; 14. Second smoothing structure; 51. Positioning column; 52. Screw column; 61. Positioning hole; 62. Screw hole. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0029] It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integrated structures. Those skilled in the art will understand the specific meanings of such terms in this patent based on specific circumstances.

[0030] Example 1

[0031] This embodiment provides a light guide installation structure, including a light guide bracket 1, a side wall of the light guide bracket 1 is provided with a receiving groove 4 adapted to the light guide 2, a first light guide card structure 11 is fixed on the inner wall of one side of the receiving groove 4, and a second light guide card structure 12 is fixed on the inner wall of the other side of the receiving groove 4. For example, Figure 2-4 As shown, the first light guide card structure 11 is fixed to the bottom surface of the receiving slot 4 , and the second light guide card structure 12 is fixed to the top surface of the receiving slot 4 .

[0032] The light guide 2 is placed in the receiving slot 4, and the first light guide card structure 11 and the second light guide card structure 12 jointly abut the light guide 2 against the inside of the receiving slot 4. That is, the first light guide card structure 11 and the second light guide card structure 12 together form a snap-fit ​​structure, which facilitates the quick installation of the light guide 2 in the receiving slot 4.

[0033] The first light guide card structure 11 is fixed with a first sloped smoothing structure 13 on the side facing the incoming light, and the slope of the first smoothing structure 13 extends from the inner wall of the receiving slot 4 to the side of the first light guide card structure 11 away from the inner wall of the receiving slot 4. The second light guide card structure 12 is fixed with a second sloped smoothing structure 14 on the side facing the incoming light, and the slope of the second smoothing structure 14 extends from the inner wall of the receiving slot 4 to the side of the second light guide card structure 12 away from the inner wall of the receiving slot 4. For example, Figure 2-4 As shown, the first smoothing structure 13 is fixed to the right side of the first light guide card structure 11, and the inclined surface of the first smoothing structure 13 extends from the bottom surface of the accommodating slot 4 to the top surface of the first light guide card structure 11. The second smoothing structure 14 is fixed to the right side of the second light guide card structure 12, and the inclined surface of the second smoothing structure 14 extends from the top surface of the accommodating slot 4 to the bottom surface of the second light guide card structure 12.

[0034] In this embodiment, the left end of the light guide 2 is the terminal, and the right end is the head. Light is emitted from right to left. Thus, when the light encounters the first light guide card structure 11, it is dispersed by the inclined surface of the first smoothing structure 13, thereby preventing the light from being concentratedly reflected on the right side of the first light guide card structure 11 and causing a bright spot. Similarly, when the light encounters the second light guide card structure 12, it is dispersed by the inclined surface of the second smoothing structure 14, thereby preventing the light from being concentratedly reflected on the right side of the second light guide card structure 12 and causing a bright spot. This solves the problem of bright lines when the light guide card structure is lit.

[0035] The first light guide card structure 11 is convex near the side of the light guide 2, for example, Figure 2-4As shown, the top of the first light guide card structure 11 is raised upward, so that the first light guide card structure 11 is in line contact with the light guide 2. That is, the protruding portion of the top of the first light guide card structure 11 is tangent to the outer wall of the light guide 2, which can avoid the formation of a bright line at the contact position between the first light guide card structure 11 and the light guide 2.

[0036] Similarly, the second light guide card structure 12 is convex near the side of the light guide 2, for example, Figure 2-4 As shown, the bottom end of the second light guide card structure 12 protrudes downward, ensuring linear contact between the second light guide card structure 12 and the light guide 2. Specifically, the protruding portion of the bottom end of the second light guide card structure 12 is tangent to the outer wall of the light guide 2. This prevents the formation of a bright line at the contact point between the second light guide card structure 12 and the light guide 2. Furthermore, the applicant has conducted multiple light distribution simulations and actual lighting tests, and the results show that no bright line is generated at the light guide card structure.

[0037] The first light guide card structure 11, the second light guide card structure 12, the first smoothing structure 13, and the second smoothing structure 14 are all integrally injection-molded with the light guide bracket 1. The length of the first light guide card structure 11 can be 4-5 mm, and the length of the first smoothing structure 13 can be 10 mm. Similarly, the length of the second light guide card structure 12 can be 4-5 mm, and the length of the second smoothing structure 14 can be 10 mm.

[0038] Example 2

[0039] On the basis of Example 1, a mounting groove 5 is provided on the side wall of the light guide bracket 1, the mounting groove 5 is communicated with the receiving groove 4, a positioning post 51 is fixed in the mounting groove 5, a mounting portion 6 adapted to the mounting groove 5 is fixed on the light guide 2 (at the end), and a positioning hole 61 adapted to the positioning post 51 is provided on the mounting portion 6. For example, Figure 5-6 As shown, the mounting portion 6 is fixed to the left end of the light guide 2 , and the mounting groove 5 is opened on the front side wall of the left end of the light guide bracket 1 .

[0040] After the light guide 2 is placed in the receiving groove 4, the mounting portion 6 is precisely positioned in the receiving groove 4, and the positioning post 51 is precisely inserted into the positioning hole 61. In other words, when installing the light guide 2, the light guide 2 can be moved along the X-axis direction so that the positioning post 51 is inserted into the positioning hole 61, thereby installing the light guide 2 in the receiving groove 4. At this time, the positioning post 51 can serve as a limiting guide, facilitating quick installation of the light guide 2.

[0041] A screw column 52 is fixed in the mounting groove 5 , and a screw hole 62 corresponding to the screw column 52 is penetrated through the mounting portion 6 . The screw column 52 and the screw hole 62 are fixed by screw locking.

[0042] After the mounting portion 6 is placed in the mounting groove 5 , the screw column 52 is aligned with the screw hole 62 , and the screw column 52 and the screw hole 62 can be quickly locked and fixed by screws.

[0043] Example 3

[0044] On the basis of embodiment 1, the light guide installation structure provided in this embodiment further comprises a light guide cover plate 3, which is fixedly covered with the light guide bracket 1 to cover part of the light guide 2. For example, Figure 7-8 As shown, after the light guide cover plate 3 is covered with the light guide bracket 1 , the right end portion (head) of the light guide 2 can be shielded.

[0045] The light guide cover plate 3 and the light guide bracket 1 can be fixed by snap fastening, which makes installation and removal very convenient.

[0046] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 invention, unless otherwise specified, "multiple" means two or more.

[0048] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A light guide installation structure, characterized in that: The light guide bracket (1) comprises a side wall of the light guide bracket (1) provided with a receiving groove (4) adapted to the light guide (2); a first light guide card structure (11) is fixed on the inner wall of one side of the receiving groove (4); a second light guide card structure (12) is fixed on the inner wall of the other side of the receiving groove (4); the light guide (2) is placed in the receiving groove (4); the first light guide card structure (11) and the second light guide card structure (12) jointly abut the light guide (2) against the inside of the receiving groove (4); A first smoothing structure (13) with a slope is fixed on the side of the first light guide card structure (11) facing the incoming light, and the slope of the first smoothing structure (13) extends from the inner wall of the receiving groove (4) to the side of the first light guide card structure (11) away from the inner wall of the receiving groove (4); a second smoothing structure (14) with a slope is fixed on the side of the second light guide card structure (12) facing the incoming light, and the slope of the second smoothing structure (14) extends from the inner wall of the receiving groove (4) to the side of the second light guide card structure (12) away from the inner wall of the receiving groove (4).

2. A light guide installation structure according to claim 1, characterized in that: The first light guide card structure (11) is protruded close to one side of the light guide (2), so that the first light guide card structure (11) is in line contact with the light guide (2).

3. The light guide installation structure according to claim 1, characterized in that: The second light guide card structure (12) is raised close to one side of the light guide (2), so that the second light guide card structure (12) is in line contact with the light guide (2).

4. The light guide installation structure according to claim 1, characterized in that: The light guide bracket (1) has a mounting groove (5) on its side wall, a positioning column (51) is fixed in the mounting groove (5), a mounting portion (6) matched with the mounting groove (5) is fixed on the light guide (2), and a positioning hole (61) matched with the positioning column (51) is formed on the mounting portion (6).

5. The light guide installation structure according to claim 4, characterized in that: A screw column (52) is fixed in the installation groove (5), and a screw hole (62) corresponding to the screw column (52) is provided through the installation portion (6), and the screw column (52) and the screw hole (62) are fixed by screw locking.

6. The light guide installation structure according to claim 1, characterized in that: It also comprises a light guide cover plate (3), wherein the light guide cover plate (3) is fixedly covered with the light guide bracket (1) to cover part of the light guide (2).

7. The light guide installation structure according to claim 6, characterized in that: The light guide cover plate (3) and the light guide bracket (1) are fixed by means of buckle clamping.

8. The light guide installation structure according to claim 1, characterized in that: The first light guide card structure (11), the second light guide card structure (12), the first smoothing structure (13), and the second smoothing structure (14) are all integrally formed with the light guide bracket (1) by injection molding.

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