Light guide element and vehicle lamp

Abstract

The application relates to a vehicle lamp, discloses a light guide element, which comprises a light guide element body (1), the light guide element body (1) comprises a light inlet surface (101) and a light outlet surface (102), one end of the light guide element body (1) close to the light inlet surface (101) is provided with a mounting portion (103), a plurality of mounting holes (104) are arranged on the mounting portion (103), and each mounting hole (104) comprises an included angle edge (1041) and an arc segment (1042) tangent to the included angle edge (1041). In addition, the application further discloses a vehicle lamp. The light guide element is simple in structure and good in light outlet effect.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle lamp, in particular to a light guide element. BACKGROUND

[0002] When light rays are emitted from a light dense medium to a light sparse medium, as long as a certain incident angle is met, the light rays will not refract into the light sparse medium, but will be reflected back to the light dense medium. Figure 1 As shown, the light rays will continuously undergo total reflection in the light guide element and transmit forward.

[0003] In the field of spotlights, the light dense medium is the light guide element. However, the existing light guide element is basically provided with a mounting structure on the light incident side. Since the mounting position is formed as a separate protruding structure, and the mounting hole is a circular hole, bright spots are formed at the R angle of the side away from the light incident end and the circular arc of the mounting hole due to the reflection of light out of the light emitting surface.

[0004] Based on the above reasons, the prior art is difficult to effectively guarantee the use requirements of the light guide element. CONTENT OF THE UTILITY MODEL

[0005] The problem to be solved by the present application is to provide a light guide element which can effectively guarantee the light emitting effect of the light guide element by setting the mounting hole as a mounting structure in which two angle edges are tangent to an arc segment.

[0006] In addition, the problem to be solved by the present application is to provide a vehicle lamp, the light guide element of which has good light emitting effect by setting the mounting hole as a mounting structure in which two angle edges are tangent to an arc segment.

[0007] In order to solve the above technical problems, the present application provides a light guide element, which comprises a light guide element body, the light guide element body comprising a light incident surface and a light emitting surface, an installation portion being provided on the light guide element body close to one end of the light incident surface, a plurality of mounting holes being provided on the installation portion, and each mounting hole comprising an angle edge and an arc segment tangent to the angle edge.

[0008] Preferably, the number of angle edges is two, and the included angle of the two angle edges is 35°-55°.

[0009] Preferably, the line connecting the tip after the intersection of the angle edges and the center of the arc segment is parallel to the incident direction of the light source.

[0010] Preferably, a mounting groove is further provided on the installation portion, and the mounting groove is provided one-to-one corresponding to the mounting hole.

[0011] Preferably, a plurality of positioning pin structures are provided on the end of the light guide element body away from the installation portion.

[0012] Preferably, the mounting portion is arranged at one end of the light guide element body, and the positioning pin structure is arranged at the other end of the light guide element body away from the mounting portion.

[0013] Preferably, the light exit surface is an arc-shaped surface with a central region protruding from both ends.

[0014] Preferably, the transverse section line of the light exit surface is a straight line.

[0015] Preferably, the light guide element body is a PMMA light guide element or a PC light guide element.

[0016] In addition, another aspect of the present application also provides a vehicle lamp comprising the light guide element according to any one of the above technical solutions.

[0017] According to the above technical solution, in the light guide element of the present application, a mounting portion is arranged on the light guide element body, and a plurality of mounting holes are arranged on the mounting portion, wherein each mounting hole comprises two angle edges and an arc segment tangent to the two angle edges, so that the mounting hole can be formed into a special-shaped hole, which is beneficial to the transmission of light in the light guide element without bright spots, and the structure is simple and the use effect is good.

[0018] Other advantages of the present application and technical effects of the preferred embodiments will be further described in the specific embodiments below. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of light propagation of a specific embodiment of the prior art light guide element;

[0020] Figure 2 is a structural schematic diagram of a specific embodiment of the light guide element of the present application;

[0021] Figure 3 is a partial enlarged schematic diagram of a specific embodiment of the mounting hole of the present application;

[0022] Figure 4 is Figure 2 A-A sectional view of

[0023] LIST OF REFERENCE NUMERALS

[0024] 1 light guide element body 101 light entrance surface

[0025] 102 light exit surface 103 mounting portion

[0026] 104 mounting hole 1041 angle edge

[0027] 1042 arc segment 105 mounting groove

[0028] 106 positioning pin 107 extension structure for positioning pin installation DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, it should be understood that the specific embodiments described herein are only used to explain and illustrate the present application, the protection scope of the present application is not limited to the specific embodiments described below.

[0030] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "installation", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, it can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As shown in Figures 2 to 4 The present application provides a light guide element, which comprises a light guide element body 1, the light guide element body 1 comprises a light inlet surface 101 and a light outlet surface 102, one end of the light guide element body 1 close to the light inlet surface 101 is provided with a mounting portion 103, the mounting portion 103 is provided with a plurality of mounting holes 104, and each mounting hole 104 comprises an included angle edge 1041 and an arc segment 1042 tangent to the included angle edge 1041.

[0032] In the present application, the light guide element body 1 comprises a light inlet surface 101 and a light outlet surface 102, and the side of the light guide element body 1 close to the light inlet surface 101 is integrally formed with a mounting portion 103, and the mounting portion 103 is provided with a plurality of mounting holes 104, wherein the cross section of each mounting hole 104 is formed in a structure that two included angle edges 1041 are tangent to an arc segment 1042, so that each mounting hole 104 can be formed into a special-shaped hole structure compared with the circular mounting hole in the prior art. When the light passes through the mounting portion 103 and the mounting hole 104 formed into a special-shaped hole structure, no bright spot will be formed at the bending part of the mounting portion 103 and the side of the mounting hole 104 close to the light source, thereby affecting the light outlet effect.

[0033] As a preferred embodiment of the present application, the number of the included angle edges 1041 is two, and the included angle of the two included angle edges 1041 is 35°-55°.

[0034] As a preferred embodiment of the present application, the angle of the included angle formed by the two included angle edges 1041 is 40°-50°.

[0035] Further preferably, the angle of the included angle formed by the two included angle edges 1041 is 45°.

[0036] It can be known that the angle of the included angle formed by the two included angle edges 1041 is set to 35°-55°, which can effectively remove the light concentration reflection phenomenon at the position of the mounting hole 104 located at the light incident end, and optimize the light emitting effect.

[0037] As a preferred embodiment of the present application, the line connecting the intersection point of the included angle edges 1041 and the center of the arc segment 1042 is parallel to the light source incident direction.

[0038] As a preferred embodiment of the present application, the line connecting the intersection point of the included angle edges 1041 and the center of the arc segment 1042 is substantially parallel to the light source light incident direction.

[0039] It should be noted that due to manufacturing errors, the line connecting the intersection point of the included angle edges 1041 and the center of the arc segment 1042 is substantially parallel to the light source light incident direction within a certain range, and in actual use, it will not be completely parallel. Generally, the angle between the line connecting the intersection point of the included angle edges 1041 and the center of the arc segment 1042 and the light source light incident direction is less than or equal to 5°, which can be considered as parallel to the light source light incident direction.

[0040] As a preferred embodiment of the present application, the mounting portion 103 is further provided with a mounting groove 105, and the mounting groove 105 is provided in one-to-one correspondence with the mounting hole 104.

[0041] As a preferred embodiment of the present application, as shown in Figure 2 and Figure 3 The cross-sectional shape of the mounting groove 105 is a quadrilateral structure with one end open, and the open end is located at one end close to the light incident surface 101, which is more conducive to molding, processing and installation.

[0042] As a preferred embodiment of the present application, the end of the light guide element body 1 away from the mounting portion 103 is provided with a plurality of positioning pins 106.

[0043] As a preferred embodiment of the present application, the end of the light guide element body 1 away from the mounting portion 103 is integrally formed with a positioning pin mounting extension structure 107, one side end surface of the positioning pin mounting extension structure 107 is parallel to the end surface of the light guide element body 1, and the other end is formed as an inclined surface, so that the positioning pin mounting extension structure 107 forms a triangle, which has high structural strength and does not increase the overall weight of the light guide element body 1.

[0044] As a preferred embodiment of the present application, the mounting portion 103 is provided at one end of the light guide element body 1, and the positioning pin 106 is provided at the end of the light guide element body 1 away from the mounting portion 103.

[0045] As a preferred embodiment of the present application, the mounting portion 103 of the light guide element of the present application is provided only at one end of the light guide element body 1, and the end close to the light source is lower than the other end, and a curved surface is used to transition between the two ends, so as to avoid the formation of a relatively sharp corner structure and the appearance of a light spot.

[0046] As another preferred embodiment of the present application, the mounting portion 103 of the light guide element of the present application is provided in a flat strip structure along the entire light entrance surface 103, and a plurality of mounting grooves 105 are provided on the mounting portion 103, and mounting holes 104 are provided in the mounting grooves 105.

[0047] As a preferred embodiment of the present application, the light exit surface 102 is an arc-shaped surface with the central region protruding from both ends.

[0048] As a preferred embodiment of the present application, the transverse cross-section of the light exit surface 102 is a straight line, and the longitudinal cross-section is a curved surface with the central region protruding from both ends.

[0049] According to actual use requirements, as another preferred embodiment of the present application, the transverse cross-section of the light exit surface 102 can be a curved line. More preferably, the transverse cross-section of the light exit surface 102 can be a curved surface with the central region protruding from both ends, according to actual light exit requirements.

[0050] As a preferred embodiment of the present application, the transverse cross-section of the light exit surface 102 is a straight line.

[0051] As a preferred embodiment of the present application, the light guide element body 1 is a PMMA light guide element or a PC light guide element.

[0052] As a preferred embodiment of the light guide element of the present application, the light guide element of the present application comprises a light guide element body 1, the light guide element body 1 comprises a light inlet face 101 and a light outlet face 102, and an installation portion 103 is arranged on one end of the light guide element body 1 close to the light inlet face 101, the installation portion 103 is arranged in a flat strip structure along the entire light inlet face 103, the installation portion 103 is arranged only at one end of the light guide element body 1, and the end close to the light source is lower than the other end, and a curved surface is arranged between the two ends; a plurality of installation grooves 105 are arranged on the installation portion 103, and an installation hole 104 is arranged in each installation groove 105, each installation hole 104 comprises an included angle edge 1041 and an arc segment 1042 tangent to the included angle edge 1041, so that each installation hole 104 is formed in a special-shaped hole structure compared with the circular installation hole in the prior art, the angle of the included angle between the two included angle edges 1041 is 35°-55°, the line connecting the tip of the intersection of the included angle edges 1041 and the center of the arc segment 1042 is parallel to the light source incidence direction, and the cross-sectional shape of the installation groove 105 is a quadrilateral structure with one open end, and the open end is located at one end close to the light inlet face 101. An extension structure 107 for positioning pin installation is integrally arranged at one end of the light guide element body 1 away from the installation portion 103, one side end face of the extension structure 107 for positioning pin installation is parallel to the end face of the light guide element body 1, and the other end is formed in an inclined surface, so that the extension structure 107 for positioning pin installation is formed in a triangular shape. A plurality of positioning pins 106 are arranged on the end face of the light guide element body 1 away from the installation portion 103 and the outer side end face of the extension structure 107 for positioning pin installation.

[0053] The light guide element of the present application has the following advantages:

[0054] Firstly, the installation portion 103 of the light guide element body 1 is arranged in a flat strip structure, and is arranged at one end of the light guide element body 1, and the end close to the light source is lower than the other end, and a curved surface is arranged between the two ends, so that the sharp corner structure is avoided to form a light spot, and the light outlet effect is effectively optimized.

[0055] Secondly, the installation portion 103 comprises two special-shaped holes with the arc segment 1042 tangent to the included angle edges 1041, and the angle of the included angle between the two included angle edges 1041 is 35°-55°, so that the light concentration reflection phenomenon at the position of the installation hole 104 close to the light incidence end is effectively removed, and the light outlet effect is further optimized.

[0056] In addition, the present application further provides a vehicle lamp comprising the light guide element according to any one of the above technical solutions.

[0057] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

[0058] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, various possible combinations are not described again in the present application.

[0059] In addition, various different embodiments of the present application can also be combined in any appropriate manner, as long as it does not deviate from the idea of the present application, and it should be considered as disclosed in the present application.

Claims

1. A light guide element, characterized in that, The light guide element body (1) includes a light-incident surface (101) and a light-outceasing surface (102). A mounting portion (103) is provided at one end of the light guide element body (1) near the light-incident surface (101). The mounting portion (103) is provided with a plurality of mounting holes (104). Each mounting hole (104) includes an included angle side (1041) and an arc segment (1042) tangent to the included angle side (1041).

2. The light guide element according to claim 1, characterized in that, The number of the included angle sides (1041) is two, and the included angle between the two included angle sides (1041) is 35°-55°.

3. The light guide element according to claim 2, characterized in that, The line connecting the tip of the angled side (1041) after they intersect with the center of the arc segment (1042) is parallel to the incident direction of the light source.

4. The light guide element according to claim 1, characterized in that, The mounting part (103) is also provided with a mounting groove (105), and the mounting groove (105) is provided in a one-to-one correspondence with the mounting hole (104).

5. The light guide element according to claim 1, characterized in that, The light guide element body (1) has a plurality of positioning pins (106) at one end away from the mounting part (103).

6. The light guide element according to claim 5, characterized in that, The mounting part (103) is located at one end of the light guide element body (1), and the positioning pin (106) is located at the end of the light guide element body (1) away from the mounting part (103).

7. The light guide element according to any one of claims 1 to 6, characterized in that, The light-emitting surface (102) is an arc-shaped surface that protrudes from the central region to both ends.

8. The light guide element according to claim 7, characterized in that, The transverse section of the light-emitting surface (102) is a straight line.

9. The light guide element according to any one of claims 1 to 6, characterized in that, The light guide element body (1) is a PMMA light guide element or a PC light guide element.

10. A vehicle light, characterized in that, Includes the light guide element as described in any one of claims 1 to 9.

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