Light-emitting diode (LED) lamp radiating system

Abstract

The invention provides a light-emitting diode (LED) lamp radiating system which is used for dissipating heat for an LED lighting module. The system comprises a lamp cavity casing and a radiator which are arranged on the back of the LED lighting module. The radiator is arranged in the lamp cavity casing which is filled with single phase heat transfer liquid. The radiator is completely immersed in the single phase heat transfer liquid, and the LED lighting module is isolated from the single phase heat transfer liquid. The LED lamp radiating system is simple and reasonable in structure and capable of quickly dissipating heat of the LED lighting module and effectively reducing the temperature of the LED lighting module, reduces the light depreciation speed of the LED lamp, prolongs the service life of the LED lamp, reduces usage of expensive good heat transfer metal in the radiator on the premise that the radiating effect is ensured and reduces the manufacture cost of the LED lamp accordingly.

Description

technical field [0001] The invention relates to the technical field of heat dissipation for lighting equipment, in particular to a heat dissipation system for LED lamps. Background technique [0002] In today's society that pays more and more attention to energy saving and emission reduction, LED lamps are being used more and more in lighting because of their advantages of high efficiency, low consumption, energy saving, environmental protection and long life. Its luminescent mechanism is to generate light by the transition of electrons between energy bands. Since its spectrum does not contain the infrared part, the heat cannot be dissipated by radiation. The photoelectric conversion efficiency of ordinary high-power LED lamps is about 15%-20%, and about 80% of the electric energy is converted into heat energy. If there is no good heat dissipation system, long-term work will cause the junction temperature of the LED chip to be too high. The speed of light decay is accelerat...

AI Technical Summary

Problems solved by technology

The photoelectric conversion efficiency of ordinary high-power LED lamps is about 15%-20%, and about 80% of the electric energy is converted into heat energy. If there is no good heat dissipation system, long-term work will cause the junction temperature of the LED chip to be too high. The speed of light decay is accelerated and the service life is shortened. Therefore, LED lamps must have a corresponding heat dissipation system to help it control the temperature of the light-emitting chip within a reasonable range.

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