CN112578496A

CN112578496A - Light guide assembly structure capable of preventing light leakage

Info

Publication number: CN112578496A
Application number: CN201910920955.1A
Authority: CN
Inventors: 韦欢亮; 蒋黎伟
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2021-03-30

Abstract

The invention relates to the field of light guide assembly design, in particular to a light guide assembly structure capable of preventing light leakage, which comprises a light guide, a bracket, a light blocking piece, a PCB (printed circuit board), a shell and a radiator, wherein the PCB is fixedly connected with the radiator, the bracket is in a hollow tubular shape, the light guide is inserted and fixed in a tube of the bracket, one end of the light guide is suspended out from the tube end of the bracket, the end part of the light guide and an LED (light emitting diode) lamp on the PCB are arranged at a relative interval, the bracket is inserted and fixed in a fixed through hole of the shell, the light blocking piece comprises an annular light blocking ring and a fixed seat, the light blocking ring is sleeved on the end part of the bracket close to the PCB, and the light blocking ring is fixedly connected with the shell through the fixed seat. The light blocking ring is utilized to block light, and the light blocking ring surrounds the periphery of the light guide, so that the light leakage phenomenon can be effectively prevented.

Description

Light guide assembly structure capable of preventing light leakage

Technical Field

The invention relates to the field of light guide assembly design, in particular to a light guide assembly structure capable of preventing light leakage.

Background

With the progress of LED technology, LED light sources are widely applied in the automobile lamp industry at present, more and richer appearance changes and applications are derived from the luminous models of the automobile lamps due to market competition and the needs of consumer groups, and different design structures are more diversified in the automobile lamp models. The LED is matched with the light guide, so that various lighting shapes can be realized, and more diversified shapes and assembly schemes can be provided.

In the prior art, the light guide type lamp has poor light leakage prevention effect, and the light leakage prevention structure is troublesome to assemble.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a light guide assembly structure capable of preventing light leakage, which has a good light leakage prevention effect and is convenient to assemble.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a can prevent light guide assembly structure of light leak, including the light guide, a support, the piece that is in the light, the PCB board, shell and radiator, PCB board and radiator fixed connection, the support is hollow tubulose, the light guide is inserted and is fixed in the intraductal of support, the one end overhang of pipe end of light guide and the LED lamp relative spacing arrangement on this tip of light guide and the PCB board, the support is inserted and is fixed in the fixed through hole of shell, the piece that is in the light includes annular light blocking ring and fixing base, the snare that is in the light is established the tip that closes on the PCB board on the support, the circle that is in the light passes through fixing base and shell fixed.

The fixing base is a bent plate formed by combining two plates, one plate end of the fixing base is fixedly connected with the outer ring surface of the light blocking ring, the plate surface of the other plate of the fixing base is attached to the convex rib in the shell, the convex rib is located on the bent inner side of the fixing base, the stop block is circumferentially arranged on the outer pipe surface of the support, one end of the light blocking ring is abutted to the stop block, the stop block and the convex rib form two opposite-direction limits for the light blocking piece, the radiator is provided with a convex block, and the convex block freely penetrates through a through hole in the PCB plate and then is abutted to the outer side plate surface of the other plate of the fixing base.

The convex rib is provided with a clamping groove, and the surface of the other plate of the fixing seat is clamped inside the clamping groove of the convex rib.

The bending angle between the two plates of the fixing seat is an obtuse angle.

Has the advantages that: the support in this application designs into the tubulose, can effectively wrap up the light guide, plays the guard action, and light guide and support adopt to put in fixed mode, and support and shell adopt to put in fixed mode, and it is very convenient to assemble, utilizes the circle of being in the light to realize being in the light, and the circle of being in the light encircles around the light guide, can effectively prevent the light leak phenomenon.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a partial block diagram of the present invention;

fig. 3 is another partial structural view of the present invention.

Detailed Description

The invention is further described below in conjunction with fig. 1-3.

The utility model provides a can prevent light guide assembly structure of light leak, including light guide 10, support 20, light blocking member 30, PCB board 40, shell 50 and radiator 60, PCB board 40 and radiator 60 fixed connection, support 20 is hollow tubulose, light guide 10 inserts and fixes in the intraductal of support 20, the one end overhang of light guide 10's pipe end and this tip of light guide 10 and LED lamp (41) on the PCB board 40 are arranged at the relative interval, support 20 inserts and fixes in the fixed through-hole of shell 50, light blocking member 30 includes annular light blocking ring 31 and fixing base 32, light blocking ring 31 cover is established and is close to the tip of PCB board 40 on support 20, light blocking ring 31 passes through fixing base 32 and shell 50 fixed connection. Support 20 in this application designs into the tubulose, can effectively wrap up light guide 10, plays the guard action, and light guide 10 and support 20 support adopt to put in fixed mode, and support 20 and shell 50 adopt to put in fixed mode, and it is very convenient to assemble, utilizes light blocking ring 31 to realize being in the light, and the circle 31 that is in the light encircles around light guide 10, can effectively prevent the light leak phenomenon.

Preferably, the fixing base 32 is a bent plate formed by combining two plates, one plate end of the fixing base 32 is fixedly connected with the outer ring surface of the light blocking ring 31, the plate surface of the other plate of the fixing base 32 is attached to a convex rib 51 in the outer shell 50, the convex rib 51 is located on the bent inner side of the fixing base 32, the stop 21 is circumferentially arranged on the outer pipe surface of the support 20, one end of the light blocking ring 31 abuts against the stop 21, the stop 21 and the convex rib 51 form two opposite direction limits for the light blocking member 30, the heat sink 60 is provided with a convex block 61, and the convex block 61 freely penetrates through a through hole in the PCB 40 and then abuts against the outer plate surface of the other plate of the fixing base 32. The other plate of the fixed seat 32 is clamped and fixed by the convex block 61 and the convex rib 51, and the limit of the light blocking piece 30 in two opposite directions is formed by the stop block 21 and the convex rib 51, so that the light blocking ring 31 can be effectively limited and fixed.

Furthermore, a slot is formed in the rib 51, and the surface of the other plate of the fixing seat 32 is clamped inside the slot of the rib 51. The draw-in groove can effectively carry on spacingly to fixing base 32, avoids rocking.

Furthermore, the bending angle between the two plates of the fixing seat 32 is an obtuse angle, and is not easy to break.

It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.

Claims

1. A light guide assembling structure capable of preventing light leakage, characterized in that: including light guide (10), support (20), light blocking piece (30), PCB board (40), shell (50) and radiator (60), PCB board (40) and radiator (60) fixed connection, support (20) are hollow tubulose, light guide (10) are inserted and are fixed in the intraductal of support (20), the one end of light guide (10) is from the pipe end overhang of support (20) and this tip of light guide (10) and LED lamp (41) on PCB board (40) are arranged at a distance relatively, support (20) are inserted and are fixed in the fixed through hole of shell (50), light blocking piece (30) are including annular circle (31) and fixing base (32) of being in the light, circle (31) cover is established and is close to the tip of PCB board (40) on support (20), circle (31) of being in the light is through fixing base (32) and shell (50) fixed connection.

2. A light guide assembly structure for preventing light leakage according to claim 1, wherein: the fixing seat (32) is a bent plate formed by combining two plates, one plate end of the fixing seat (32) is fixedly connected with the outer ring surface of the light blocking ring (31), the plate surface of the other plate of the fixing seat (32) is attached to a convex rib (51) in the shell (50), the convex rib (51) is located on the bent inner side of the fixing seat (32), a stop block (21) is circumferentially arranged on the outer pipe surface of the support (20), one end of the light blocking ring (31) abuts against the stop block (21), the stop block (21) and the convex rib (51) form two opposite direction limits of the light blocking piece (30), a convex block (61) is arranged on the radiator (60), and the convex block (61) freely penetrates through a through hole in the PCB plate (40) and then abuts against the outer side plate surface of the other plate of the fixing seat (32).

3. A light guide assembly structure for preventing light leakage according to claim 2, wherein: the convex rib (51) is provided with a clamping groove, and the surface of the other plate of the fixed seat (32) is clamped inside the clamping groove of the convex rib (51).

4. A light guide assembling structure for preventing light leakage according to claim 3, wherein: the bending angle between the two plates of the fixed seat (32) is an obtuse angle.