What are the cooling way of solar light?

Number of the LED lighting is quickly add, actually LED the number of single tile lumens still reach 100 lumens, and the numerical also to quickly add. Comments and the matching of heat transfer system is mature, we might as well use the heat transfer of statecraft and basic understand: conduction,

number of LED lighting is quickly add, actually LED the number of single tile lumens still reached 100 lumens, and that figure is still in increase rapidly. Comments and the matching of heat transfer system is mature, we might as well use the heat transfer of statecraft basis also understand: conduction, convection, radiation, and phase change heat transfer. In heat transfer or heat issues, we should adopt countermeasures is visible, limited. Solar LED street lamp holder of the cooling methods mainly are: natural convection, equipped with electric fan compelled cooling, heat pipe, and the loop heat pipe cooling, etc. Equipped with electric fan compelled the cooling method system heavy and complicated, low reliability, capital high heat pipe and the loop heat pipe cooling method. And street lamp head with outdoor use at night, the radiating surface is located side above and size are restricted to small and is conducive to the advantage of the air natural convection, so the LED street lamp head proposal as far as possible choose natural convection cooling method. LED street lamp head cooling techniques, often used for heat conduction plate method, is a 5 mm thick copper plate, is actually mean temperature plate, the heat source temperature drop, LED street lamp, also with a radiator to heat dissipation, but the weight is too big. Component in the system of street lamp head particularly urgent, street lamp head usually has six meters high above, if heavy risk increase, more typhoons, earthquakes can occur suddenly. The acicular heat dissipation techniques, pioneered by the needle radiator cooling efficiency higher than traditional flake radiator has a great range, can make the LED junction temperature 15 ℃ lower than the ordinary radiators and above, and the waterproof performance is better than ordinary aluminum radiator, also improved on the weight and volume. LED street lamp head heat dissipation problems existing in the design are: heat dissipation fin area set casually, unreasonable cooling fin deployment method, the lamp ACTS the role of heat dissipation fin deployment without using method of the research to lamp act the role ofing spilled into the fin efficiency promote, emphasize heat transfer hub, despise convection hub, just the manufacturer of the vast studies the countermeasures: many of loop heat pipe and heat pipe, thermal conductivity silicone grease, etc. , but don't realize heat finally still have to rely on the appearance of the lighting area scattered, despise heat balance, if the temperature of the fin scattered matter not average, will be part of the cause of fin not promote role or function is very limited.