The main heat dissipation of LED technology briefly

1) Aluminum extrusion technology extruded aluminum type material is AL6063 usually used, as it has good thermal conductivity, About 200 W/m. K) And processability. The advantages and disadvantages of easy process, low cost and mature technology. Defect is limited to install more, easy to deformation. Note aluminum erosion, easily, without oxidation treatment to lower thermal conductivity.

　　2) Aluminum die casting technology of die casting aluminum alloy is usually used ADC12, applicable to thin castings, but poor thermal conductivity, About 96 W/m. K) 。 The advantages and disadvantages can be integrated without gap design, waterproof effect is good. Defect is higher cost of the mold, cooling effect, the lamp body is heavy.

　　3) Heat pipe technology generally in the form of heat pipe and fin piece. Fin piece of material is generally AA1050 ( AL, around 200 W/m. K) Or c1100 ( Cu, about 400 W/m. K) Thermal pipe material structure is complex, with almost perfect thermal conductivity ( About 80000 ~ 110000 W/m. K) 。 The advantages and disadvantages of good heat dissipation effect, light in weight. The disadvantage is that the space has certain requirements, unable to bear large impact strength, cost is higher also.

　　4) Other new cooling technology, alternative SynJet fan 1 2, soaking board 3, ion wind cooling technology 4, PDC heat treatment material 5, nanometer carbon ball used in radiation technology

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China lighting network