Adjustable LED low-beam module

Abstract

The invention relates to an adjustable LED low-beam module. The adjustable LED low-beam module comprises an independent widening assembly and an independent cut-off line assembly; a first radiator, where a first circuit board is fixed, of the widening assembly is connected onto a first reflecting mirror and is rotationally mounted on a hinge seat of a low-beam support; a second bulb dimming mechanism for adjusting the widening light pattern to be superposed with the cut-off line light pattern is mounted at the back of the first radiator; a second circuit board of the cut-off line assembly is fixed on a second radiator; the second radiator and a second reflecting mirror are mounted on the low-beam support; a light source adjusting piece for adjusting an LED light source to move in the x-axis direction is mounted at the back of the second radiator and the back of the low-beam support; and a first bulb dimming mechanism and a third bulb dimming mechanism which are used for adjusting the relative angle of a low-beam module and a high-beam module are mounted on two sides of the back of the low-beam support. The adjustable LED low-beam module is compact in structure, the relative position of an LED and the reflecting mirrors as well as the relative position of the high-beam module and the low-beam module can be adjusted accurately, and the manufacturing cost can be reduced.

Description

technical field [0001] The invention relates to an adjustable LED low beam module, which belongs to the technical field of automobile lighting fixtures. Background technique [0002] With the rapid development of the automobile industry, the importance of automobile lighting fixtures is increasingly reflected. After the car light source has gone through acetylene lamp-incandescent lamp-halogen lamp-xenon lamp, LED light source is widely used in the field of automotive lighting because of its advantages such as high brightness, rich colors, low energy consumption, and long life. [0003] However, the LED car light type is extremely sensitive to the position error between the light source and the reflective surface, and its allowable deviation should be controlled between 0.1 and 0.2 mm. In the manufacturing process, although each part can meet the design requirements Within the tolerance range, but in the assembly process, the cumulative tolerance of each component will inev...

AI Technical Summary

Problems solved by technology

In order to precisely control the light type of low beam and high beam, the current automobile headlights are equipped with dimming motors and ball head dimming mechanisms on the low beam module and the high beam module respectively, which not only causes the LED low beam module structure It is complex and requires high manufacturing precision, which increases the cost

Secondly, it is troublesome to operate the lock when adjusting the relative position of the LED light source and the reflector and the coincidence degree of the low beam light pattern and the high beam light pattern, and the production efficiency is low.

Images