CN216521426U

CN216521426U - Light guide and thick wall combined optical structure of automobile rear position lamp

Info

Publication number: CN216521426U
Application number: CN202122894681.9U
Authority: CN
Inventors: 任海瑞; 周洪涛; 张超; 袁霜
Original assignee: Zhejiang Zero Run Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-13
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a light guide and thick wall combined optical structure of an automobile rear position lamp, which comprises a light source (1), a light guide (2), a thick-wall part (3) and a support (4), wherein the light guide (2) is fixed inside the support (4), the thick-wall part (3) is fixed with the support (4), the light guide (2) is positioned between the support (4) and the thick-wall part (3), the light source (1) is fixed at one end of the support (4), a thick-wall part optical tooth (5) is arranged on the thick-wall part (3), and a gap between 1mm and 2mm is kept between the thick-wall part optical tooth (5) and the light guide (2). The utility model provides a light guide and thick wall combined optical structure of an automobile rear position lamp, which has the advantages of simple structure, convenience in installation, uniform lamp lighting, good texture and the like.

Description

Light guide and thick wall combined optical structure of automobile rear position lamp

Technical Field

The utility model relates to an automobile rear position lamp mounting structure, in particular to an automobile rear position lamp light guide and thick wall combined optical structure.

Background

The automobile rear position lamp is one of the necessary functions of automobile safety, and mainly plays a role in prompting the existence and the large width of an automobile for a rear road user on an actual road. Simultaneously along with the development of car molding and the promotion of user to the car aesthetic feeling requirement, the aesthetic feeling of position lamp requires more and more highly behind the car, and the light source mainly is bulb and LED module. The current automobile rear position lamp installation scheme mainly has: 1. the LED + reflector has high optical utilization rate, but LED particles and a PCB can be observed, and the LED + reflector has strong granular lighting feeling and poor quality feeling. 2. LED + light guide, LED light source are located light guide one end, and the uneven problem of light guide head and the tail both ends luminance easily appears, and the light guide head and the tail is made the structure usually and is sheltered from. 3. The LED + thick-wall part is easy to cause uneven lighting and bright spot appearance problems, and the problem is usually improved by increasing the X-direction length of a thick wall or adopting a double-thick-wall structure. Therefore, there is a need for a light guide and thick-walled combined optical structure for a rear position lamp of an automobile that improves the uniformity and feel of the lighting of the rear position lamp.

Chinese patent application publication No. CN106500021A, published as 2015, 09/01, entitled "rear position light guide structure of automobile with coupling device at light inlet end", discloses a rear position light guide structure of automobile with coupling device at light inlet end, wherein the light guide is arranged between an inner lampshade and a reflector, the inner lampshade is located on front of the light guide, and LED light sources mounted at two ends of the inner lampshade face to the light inlet area of the light guide; the light guide is provided with a convex block and a local thickened part which is positioned at the rear part of the convex block and used for increasing light diffusion on the front surface of the light inlet area, the convex block is provided with a light inlet arc surface for introducing light on the light inlet side of the LED light source, and the end surface of the light guide is provided with a light inlet inclined surface for introducing light; the front surface of the convex block of the light guide is provided with a plurality of angle-shaped teeth which can totally reflect light rays to the inner lampshade, the plurality of angle-shaped teeth form an end part front surface reflection area, the front surface of the local thickened part of the light guide is provided with an inclined surface which is used for totally reflecting the light rays to the reflector, and the inclined surface forms an end part back surface reflection area. The utility model has simple and reasonable structure, can improve the lighting uniformity of the light guide under the condition that the LED light source is not shielded, and is not limited by space. But the position requirement of the device to the light source is relatively strict, and the device is not suitable for mass production.

Disclosure of Invention

The utility model provides a light guide and thick wall combined optical structure of an automobile rear position lamp, aiming at overcoming the problems of uneven lighting and poor light texture of the automobile rear position lamp in the prior art, and having the advantages of simple structure, convenient installation, even lighting of the lamp, good texture and the like.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a position lamp light guide and thick wall combination optical structure behind car, includes light source 1, light guide 2, thick walled spare 3, support 4, and light guide 2 fixes inside support 4, and thick walled spare 3 is fixed with support 4, and light guide 2 is in between support 4 and thick walled spare 3, and light source 1 fixes the one end at support 4, is equipped with thick walled spare optics tooth 5 on the thick walled spare 3, and thick walled spare optics tooth 5 keeps the clearance between 1mm to 2mm with light guide 2.

In the technical scheme, the light source 1 emits light and transmits the light to the light guide 2, the light guide 2 transmits the light to the thick-wall part 3 to form back position light, the light emitted by the light guide 2 passes through the thick-wall part optical teeth 5 on the thick-wall part 3 and is refracted by the thick-wall part optical teeth 5 and enters the thick-wall part, the thick-wall part optical teeth 5 and the light guide 2 keep a gap between 1mm and 2mm, a space is provided for light reflection, and the installation is convenient; the effect of light is improved by the optical teeth 5 on the thick-wall part 3, and the light is uniformly lighted and has good texture.

Preferably, the outer surface of the thick-wall part 3 is provided with a corn-shaped optical pattern 6, and light rays pass through the corn-shaped optical pattern 6 on the outer surface of the thick-wall part to direct the light rays to a specified direction, so that the lighting effect of the rear position lamp is improved.

Preferably, the bracket 4 is provided with a raised light blocking structure 7, and the light blocking structure 7 blocks a gap between the light guide 2 and the bracket 4, so that the tail end of the light guide 2 can be prevented from leaking light to other optical parts through the gap or being exposed out of an outer mask to influence the light effect.

Preferably, the bracket 4 is provided with a cavity 8, and when the light guide 2 is mounted on the bracket 4, the cavity 8 can provide a space for the movement of the light guide 2 and also can provide a mounting space for the positioning structure, so that the mounting is more convenient.

Preferably, the thick-wall member 3 is provided with a structure of the thick-wall member mounting foot 9, when the thick-wall member 3 is mounted on the bracket 4, a screw can be inserted into the thick-wall member mounting foot 9 for fastening, and the mounting is more stable.

Preferably, the support 4 is provided with the flanging structure 10, the flanging structure 10 is beneficial to arrangement of a mold parting line, manufacturing is facilitated, strength of the support 4 can be increased, and the whole structure is more stable.

Preferably, the thick-walled member 3 and the bracket 4 are provided with a plurality of through holes which are matched with each other, so that the thick-walled member 3 and the bracket 4 can be conveniently positioned.

Preferably, the main positioning pin 11 and the auxiliary positioning pin 12 are arranged on the support 4, so that when the thick-wall part 3 is installed and fixed, the thick-wall part 3 is limited, and the installation is more convenient when the thick-wall part 3 is fixed.

The utility model has the beneficial effects that: (1) the structure is simple, and the installation is convenient; (2) the lighting effect is good and more uniform, and the texture is better; (3) stable structure, high feasibility and suitability for batch production.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view in the top view of FIG. 1;

fig. 3 is a sectional view in the right-hand direction of fig. 1.

In the figure: the device comprises a light source 1, a light guide 2, a thick-wall part 3, a support 4, a thick-wall part optical tooth 5, an optical pattern 6, a light blocking structure 7, a cavity 8, a thick-wall part mounting foot 9, a flanging structure 10, a main positioning pin 11 and an auxiliary positioning pin 12.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1, 2 and 3, a rear position lamp light guide and thick wall combined optical structure for an automobile includes a light source 1, a light guide 2, thick wall spare 3, support 4, light guide 2 is fixed inside support 4, thick wall spare 3 is fixed with support 4, light guide 2 is in between support 4 and thick wall spare 3, light source 1 fixes the one end at support 4, be equipped with thick wall spare optics tooth 5 on the thick wall spare 3, thick wall spare optics tooth 5 keeps the clearance between 1mm to 2mm with light guide 2, be equipped with corn grain-shaped optical pattern 6 on the surface of thick wall spare 3, be equipped with bellied light structure 7 that is in the light on the support 4, be equipped with cavity 8 on the support 4, be equipped with thick wall spare installation foot 9 structure on the thick wall spare 3, be equipped with flange structure 10 on the support 4, thick wall spare 3 is equipped with a plurality of through-hole of mutually supporting with support 4, be equipped with main locating pin 11 and auxiliary locating pin 12 on the support 4.

Among the above-mentioned technical scheme, at first pack into support 4 with light guide 2 in, can fix a position through main locating pin 11 and auxiliary locating pin 1, can utilize the position of 8 spatial adjustment light guide 2 of cavity, reuse screw fixation, the back is accomplished in the installation of light guide 2, install light source 1 and thick-walled spare 3 on support 4, the mode of fixing after adopting earlier location equally, thick-walled spare optical tooth 5 keeps the clearance with light guide 2, pass through the screw fastening between thick-walled spare installation angle 9 and the support 4, be convenient for more install, after the installation, light source 1 sends light, carry out the light-emitting through light guide 2 one end, light on the light guide is after the reflection of thick-walled spare optical tooth 5, get into thick-walled spare 3, in the light-emitting through the optical pattern 6 light-emitting of thick-walled spare 3 surface, the luminous effect of final show is even.

Claims

1. The utility model provides a position lamp light guide and thick wall combination optical structure behind car, characterized by, including light source (1), light guide (2), thick-walled spare (3), support (4), light guide (2) are fixed inside support (4), thick-walled spare (3) are fixed with support (4), light guide (2) are in between support (4) and thick-walled spare (3), the one end at support (4) is fixed in light source (1), be equipped with thick-walled spare optical tooth (5) on thick-walled spare (3), thick-walled spare optical tooth (5) and light guide (2) keep the clearance between 1mm to 2 mm.

2. The combined optical structure of light guide and thick wall of rear position lamp of car as claimed in claim 1, wherein the outer surface of the thick wall member (3) is provided with a corn-like optical pattern (6).

3. The combined optical structure of the light guide and the thick wall of the rear position lamp of the automobile as claimed in claim 1, wherein the thick wall member (3) is provided with a structure of a thick wall member mounting foot (9).

4. A combined light guide and thick-walled optical structure as claimed in claim 1, wherein the holder (4) is provided with a cavity (8).

5. A combined light guide and thick-walled optical structure for a rear position light of a motor vehicle as claimed in claim 1, characterized in that the holder (4) is provided with a raised light-blocking structure (7).

6. A combined optical structure of light guide and thick wall of rear position lamp of car as claimed in claim 1 or 2 or 3 or 4 or 5, characterized in that the bracket (4) is provided with a flanging structure (10).

7. A combined optical structure of a light guide and thick wall for a rear position lamp of a vehicle as claimed in claim 1, 2, 3, 4 or 5, wherein the thick wall member (3) and the bracket (4) are provided with a plurality of through holes for cooperation.

8. A combined optical structure of light guide and thick wall for rear position lamp of car as claimed in claim 1 or 2 or 3 or 4 or 5, characterized in that the bracket (4) is provided with a main positioning pin (11) and an auxiliary positioning pin (12).