Design and selection of radiator

Highly efficient cooling = heat transfer coefficient of heat dissipation area X X

temperature difference heat transfer coefficient of the material properties, geometric shape, the flow field conditions ( Laminar and turbulent) Cooling area manufacturing approach, geometry temperature differential geometry, the flow field in

the cooling material selection of

heat sink design key

the overall cooling surface area ( P/h*( Ti- Tj) Basic > 60 cm square/W), Materials ( ADC12 aluminum squeeze AL6063, die-casting, finAA1050) Plate thickness ( General > 4 mm, T = 7 xlogw - 6 ( 分钟2毫米) )

fins shape fin thickness ( Extruded aluminum 0. 5 ~ 2 mm, die-casting 1 ~ 4 mm, fin0. 2 to 0. 5毫米) Fins spacing ( 3 ~ 8毫米) Fin length ( The structural design of the extruded aluminum

( Easy to air natural convection cooling structure up and down) The structural design of the

( The integration of lower system thermal resistance) of lamps and lanterns As far as possible will heat related structure ( Radiator with metal parts such as shell) Designed to integration, which is beneficial to reduce the system thermal resistance.

open solder in the radiator directly, this can reduce the system thermal resistance of lamps and lanterns. At the same time can also save aluminum board and aluminum plate between the radiator and the use of thermal conductive silicone, thereby reducing system thermal resistance.

other small design 1 good for heat dissipation. The heat source and heat sink with large contact surface design; 2. Glue, heat insulation fixed; 3. Void Spaces of the thermal conductive paste flexible use;

　　4. The radiator surface treatment ( Black > anode, primary colors and based on the anodic treatment > > common electroplating aluminum) ; 5. A reasonable cooling system design ( The shell hole, surface area) ;

　　6. Refer to some of the more mature of high power product cooling design skills, such as CPU radiator design, reduce the PCB with the radiator surface roughness; 7. Thermal design aspires to structure at the same time.

Sophy

China lighting network