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Novel connecting structure of lens and shell of automobile head lamp

A technology of connecting structure and light distribution mirror, applied in the direction of headlights, vehicle parts, light source fixing, etc., can solve the problems of poor welding performance and increase the welding defect rate, and achieve the effect of fast connection speed, high yield rate and low cost

Pending Publication Date: 2019-02-01
ZHEJIANG LEAPMOTOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the welding performance of PC material is worse than that of PMMA material, the welding process will increase the welding failure rate of the light distribution lens made of PC material

Method used

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  • Novel connecting structure of lens and shell of automobile head lamp
  • Novel connecting structure of lens and shell of automobile head lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the present invention includes a casing 1 , a PC light distribution mirror 2 , and an intermediate layer 3 . The middle layer 3 is made of PMMA, and the whole surface of the middle layer 3 close to the PC light distribution mirror 2 and the PC light distribution mirror 2 are in a hot-melt state to penetrate and combine with each other to form a whole, and they are bonded and fixed together. The housing 1 There is a ring groove on the top, and the side of the middle layer 3 close to the shell 1 is provided with ribs protruding into the ring groove. The ring groove and the rib are welded together so that the side of the middle layer 3 close to the shell 1 and the shell Body 1 is welded together.

Embodiment 2

[0021] Such as figure 2 As shown, the difference between the present embodiment and the first embodiment is that in the present embodiment, the surface where the intermediate layer 3 and the PC lens 2 are attached and fixed together is ring-shaped.

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PUM

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Abstract

A novel connecting structure of a lens and a shell of an automobile head lamp comprises the shell, the PC lens and a middle layer. The side, close to the PC lens, of the middle layer and the PC lens are attached and fixedly connected together. The side, close to the shell, of the middle layer and the shell are welded and connected together. The novel connecting structure has the advantages that the shell and the PC lens are connected together through the middle layer in a welded manner; the advantages of being high in connecting speed, low in cost and high in yield are achieved; and the problem of how to rapidly connect a PC lens and a lamp shell of an existing automobile head lamp with high quality is solved.

Description

technical field [0001] The invention relates to a connection structure between a light distribution mirror and a housing of a novel automobile lamp. Background technique [0002] Generally speaking, automotive lamps are mainly composed of light distribution mirrors, housings, light sources, electronic circuits and installation accessories. The main plastic raw materials for automotive lamps in my country include PC, PMMA, PBT, PA66, BMC, PP, ABS, etc. and other materials. . The light distribution mirror materials of automotive lamps are generally PC and PMMA. In terms of material properties, PC materials have high hardness and higher temperature resistance than PMMA materials. However, PMMA is brittle and easy to crack, has low surface hardness, and is easy to be scratched and lose luster. The head of the car is vulnerable to collision and scratching by foreign objects on the ground and foreign objects rebounded from the front tires. Compared with PMMA, PC material is harde...

Claims

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Application Information

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IPC IPC(8): F21S41/50F21V15/01F21V17/10F21W102/13
CPCF21S41/50F21V15/01F21V17/101F21W2102/13
Inventor 张超李贺杰虞佳萍
Owner ZHEJIANG LEAPMOTOR TECH CO LTD
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