Heat pipe heat dissipation system for automobile LED lamp

Abstract

The invention relates to a heat pipe heat dissipation system for an automobile LED lamp. The heat pipe heat dissipation system comprises an LED substrate, a heat dissipation shell, a heat pipe and a micro fan. The LED substrate is attached to the outer side wall of the front portion of the heat dissipation shell, and LED lamp beads are arranged on the LED substrate. The front end of the heat pipeis located in the front portion of the heat dissipation shell, and the rear end of the heat pipe extends to the tail portion of the heat dissipation shell in the heat dissipation shell. The micro fanis positioned in the tail part of the heat dissipation shell; a chip for controlling the rotating speed of the micro fan by sensing the temperature of the LED lamp beads is further arranged on the LEDsubstrate; and the tail portion of the heat dissipation shell is of a fin structure. The heat pipe heat dissipation system has the beneficial effects that: 1, a pipe heat dissipation technology is applied, and a heat dissipation mode of combining a heat pipe, a fan and fins is adopted, so that the heat transfer rate is greatly improved; 2, a temperature feedback adjusting system is additionally arranged, so that different rotating speeds of the miniature fan at different temperatures of the lamp body can be realized; and 3, favorable conditions are provided for replacing the existing productin the later period.

Description

technical field [0001] The invention relates to the field of automobile lighting heat dissipation, in particular to a heat pipe heat dissipation system for automobile LED lamps. Background technique [0002] LED is the most promising new cold light source in the 21st century. Compared with traditional light sources, it has the advantages of high efficiency, fast response, pure light color, and low energy consumption. In recent years, it has been gradually applied to aerospace, military, ships, and vehicles. , Civil lighting and other fields. With the development of LED, more and more car manufacturers have adopted LED lights as the first choice for headlights. At present, the heat dissipation methods of automotive LED lights on the market are mainly fin heat dissipation, fin heat dissipation, braided belt heat dissipation, and fan heat dissipation. . [0003] There are many kinds of heat dissipation methods for automotive LED lights, which are dazzling. Among them, the mai...

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Problems solved by technology

The effect of these improvements on heat dissipation is extremely small, and even in the case of increasing the cost and increasing the volume of the radiator, only a very small effect is finally achieved.

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