Light-emitting diode (LED) lamp radiating system

A technology of LED lamps and heat dissipation systems, which is applied in the direction of lighting and heating equipment, cooling/heating devices of lighting devices, and damage prevention measures of lighting devices. The effect of manufacturing cost, prolonging service life, and simple and reasonable structure

Inactive Publication Date: 2015-01-21
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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.

Method used

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  • Light-emitting diode (LED) lamp radiating system
  • Light-emitting diode (LED) lamp radiating system

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Embodiment

[0016] Such as figure 1 , figure 2 As shown, a heat dissipation system for LED lamps is used to dissipate heat for LED light-emitting module 1, including a lamp cavity shell 2 and a radiator 4 arranged on the backlight surface of the LED light-emitting module 1, and the radiator 4 is placed In the lamp cavity shell 2, and the single-phase heat transfer liquid 5 is filled in the lamp cavity shell 2, the radiator 4 is completely immersed in the single-phase heat transfer liquid 5, the LED light-emitting module 1 and the single-phase The heat transfer liquid 5 is isolated.

[0017] The LED lamp cooling system of the present invention is mainly used for high-power LED lamps, such as high-power LED street lamps. 1 is closely attached to the bottom of the radiator 4. The radiator 4 is surrounded by the lamp cavity shell 2 and immersed in the single-phase heat transfer liquid 5. The shape of the lamp cavity shell 2 can be determined according to the needs. Arbitrary shape, the de...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/503F21V29/56F21Y101/02
CPCF21V15/02F21Y2101/00
Inventor 岑继文王亦伟蒋方明
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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