LED automobile head lamp

Abstract

The invention relates to the technical field of car lamps, and particularly relates to an LED automobile head lamp. The LED automobile head lamp comprises a uniform temperature plate, an LED-COB light source, a bulb metal outer cover, finned radiators and fans, wherein the uniform temperature plate adopts a liner flat plate structure, and a vacuum vapor chamber and a condensation cavity, as well as a capillary core layer are arranged in the liner flat plate structure; the LED-COB light source is arranged on the outer surface of a vapor chamber in a pasting manner, at least two finned radiators are respectively arranged on two side surfaces of the condensation cavity in a pasting manner, and the fans are arranged at the rear ends of the finned radiators; the bulb metal outer cover is made of a magnesium alloy material; and except for the fans and a base cover, the rest components are connected in a welding manner by adopting a SnAgCu environmental protection solder paste at a high temperature. The LED automobile head lamp integrates four heat dissipation technological means including phase change heat dissipation, metal cooling fin heat conduction heat dissipation, air cooling heat dissipation as well as heat dissipation through radiation, and the heat dissipation efficiency is high; the quakeproof effect is good, and the structure is firm; and the LED automobile head lamp is convenient to mount and accurate in focusing, can replace an original bulb perfectly, and is applicable to various vehicle models.

Description

technical field [0001] The invention relates to the technical field of vehicle lights, in particular to an LED vehicle headlight. Background technique [0002] The current car headlights include halogen lamps, xenon lamps and LED lamps. [0003] Halogen lamps are relatively cheap, but they have high energy consumption, poor brightness, high heat generation, and most of them emit yellow light, the illumination is not high, and they are easy to age. [0004] Xenon lamps (HID) have three times higher light intensity than halogen lamps, but consume only two-thirds of the energy; Xenon lamps use almost the same light color as sunlight, creating better visual conditions for drivers Longer life. However, the price of xenon lamp is high, the assembly is complicated and the light concentrating is poor, and although the calorific value of xenon lamp is smaller than that of halogen lamp, it is not low. [0005] LED lights are a new green lighting high-tech industry, especially the L...

AI Technical Summary

Problems solved by technology

However, the electrical conductivity of the insulating board is very limited, and the heat dissipation effect is extremely poor.

If the insulating plate is replaced by a metal heat sink, the surface of the metal plate needs to be insulated first. At the same time, the metal plate needs to have a certain thickness to ensure the heat transfer effect. The thickness of the plate will be large, it will not be able to focus accurately, and the light will diverge, which will affect the light pattern of the entire headlight and affect the normal use of the headlight

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