LED (light emitting diode) automobile headlamp lower beam optical module

Abstract

The invention belongs to the technical field of automobile illumination, and particularly relates to an LED (light emitting diode) automobile headlamp lower beam optical module, which comprises an LED light source, a reflector, a lens and a heat radiator, wherein a platform is arranged on the grid-shaped heat radiator, the heat radiator is connected with a base through a ball head connecting mechanism and a position regulating structure, the LED light source is arranged at a hollow part position of the reflector, in addition, the LED light source is connected with the platform, the reflector comprises a reflecting cup body, the reflecting surface of the reflecting cup is in an ellipsoidal surface shape, a light shielding plate is arranged in the front side of the light ray emitting direction, the lens comprises a planar incident surface allowing light rays to enter the lens, and also comprises an outer convex surface allowing the light rays to be emitted out, the outer convex surface is in an ellipsoidal surface shape, and the lens is fixedly arranged on the heat radiator through a lens support frame. The module has the advantages that the illumination effect is good, the view sight is clear, a good heat radiation effect is also realized, an automobile headlamp is enabled to be in a safe and stable work environment, the running safety is improved, and the service life of the automobile headlamp is prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile lighting, and in particular relates to a low-beam optical module of an LED automobile headlamp. Background technique [0002] In the prior art, automobile headlights generally use reflectors to focus light, and the light after being concentrated by the reflector cups is used to focus again with a lens when it exits, so that the light in front of the car reaches a certain illuminance value, thereby providing a better environment for driving. Personnel provide lighting. However, there are the following defects in the prior art: First, there is a defect of uneven light after the reflective cup gathers light. In the prior art, bumps are usually added to the inner surface of the reflective cup to improve the light output effect, but this structure will Lead to bright spots and poor lighting effect; second, the outgoing light of the existing automobile headlights is relatively scattered, and the ran...

AI Technical Summary

Problems solved by technology

However, there are the following defects in the prior art: First, there is a defect of uneven light after the reflective cup gathers light. In the prior art, bumps are usually added to the inner surface of the reflective cup to improve the light output effect, but this structure will It leads to bright spots and poor lighting effect; secondly, the outgoing light of the existing automobile headlights is relatively scattered, and the range is short, and the lighting clarity is poor, which is likely to have a negative impact on the safety of driving

[0003] In addition, the interior of the car lights is a closed environment. When the car headlights are in the lighting state, the closed environment where the car lights are located will generate a higher temperature due to heat accumulation. Fog is generated inside the lamp, which affects the lighting effect, and it is easy to cause the parts in the car headlights to be heated and deformed, and even the parts are melted; because the heat generated by the high temperature does not flow smoothly in a closed environment, it will also This shortens the life of the electronic products inside the car headlights, seriously affecting the normal use of the car headlights

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