Heat Dissipation Structure Of Glass And Optimization Of LED Modules

In recent years, for a fast response time, high luminous efficiency, long life and other characteristics, LEDs are widely used in lighting, medical and other fields. It can be predicted that LEDs will replace traditional incandescent, fluorescent lamps and become the mainstream of the lighting field. The traditional materials of heat sinks have their advantages and disadvantages. This paper proposes the idea of the use of glass as a radiator and two basic models of radiators using of glass, namely flat glass and glass tube structure.For flat glass LED light source module, the affection of the length is smaller than the width and the thickness to the junction temperature. The maximum temperature of the flat glass LED module decreases with the increasing of the width, and the downward trend slows when the flat glass is wider than 12 mm. The maximum temperature of the flat glass LED module decreases with the increasing of the thickness, and the downward trend slows when the flat glass is thicker than 4mm. A flat glass LED lamp is designed, and the maximum thermal power of 1.26 W. It is found that the relationship between the junction temperature of the lamp and orientations is weak. A sample is produced, and its junction temperature is tested.For the glass tube LED light source module with an unsealed glass tube radiator of a certain diameter, there is a preferred thickness which increases with increasing diameter and make the junction temperature the lowest. The maximum temperature of the glass tube LED module decreases with the increasing o f the thickness and the downward trend decreases. Under the same conditions, the junction temperature of the unsealed modules is lower than the sealed modules. For unsealed glass tube light source modules, there will be a placement angle which makes the junction temperature lowest. T6 and T8 LED fluorescent tube models dissipated by glass tubes are designed, and it is proved that the fluorescent structures are feasible. 3 and 7 glasses LED modules and lamps are designed structures and the samples are produced, and their junction temperatures are tested.The use of a large area of a highly thermally conductive material and the glass as a dissipating material to solve the case of the high heat flux is proposed. By adding an aluminum plate layer of the thickness of 0.3mm on the bottom of the plate glass LED light source you can make the maximum thermal power per unit of length increase of 23% at least. C hanging the middle glass tube of the seven-glass-tubes LED lamp with a aluminum tube, you can make the maximum thermal power increase by 25% at least. When the middle glass tube is replaced by an aluminum core which has good contact with linear LED light source, the maximum thermal power will be higher.