LED lighting lamps and lanterns of 5 kinds of radiator

the LED lighting lamps and lanterns is one of the biggest technical problem is the heat problem, poor heat dissipation lead to LED drive power supply, electrolytic capacitor is the further development of the LED lighting lamps and lanterns, the LED light source, the causes of premature aging.

at present, such as LED light source in about 30% of the electric energy into light energy, the other is converted into heat energy. The heat energy, therefore, should be so many export as soon as possible is the key technology of structure design of LED lamps and lanterns, heat through heat conduction, convection and radiation is needed to send out. Only by reducing export quantity of heat to be effective as soon as possible the cavity temperature inside the LED lamps and lanterns, can protect the power supply does not work in the persistent high temperatures, can avoid the LED light source occur premature aging due to long-term high temperature work

let's look at the LED lighting lamps and lanterns together with small make up the cooling way:

because there is no infrared, ultraviolet, LED light source itself so the LED light source itself without radiation cooling function, the LED lighting lamps and lanterns of the cooling way only through close combination with commercial ceiling lamps bead board heat radiator to export. Radiator must possess the function of the heat conduction, convection and radiation

any radiator, in addition to can quickly to the heat from the source of heat conduction to the surface of the radiator, the main or rely on the heat convection and radiation in the air. Way only solves the heat transfer of thermal conductivity, and heat convection is the main function of the radiator, the heat dissipating performance mainly by natural convection heat dissipation area, shape, strength the ability of the decision, the effect of thermal radiation is auxiliary.

the commonly used thermal radiation has a stamping die casting aluminum radiator, extruded aluminum radiator, aluminum radiator, plastic package aluminum radiator, radiator high thermal conductive plastic.

die casting aluminum radiator

production cost control, heat dissipation thin wings can't do, it is difficult to make heat flow area. The LED die casting material for ADC10 and ADC12 commonly used lamps and lanterns of the radiator.

extruded aluminum radiator

the liquid aluminum through fixed die extrusion, then put the rod by machining cutting into the shape of a need to radiator, post processing cost is higher. Heat dissipation wing can do a lot of very thin, the heat dissipation area get the maximum extension, heat dissipation wing work automatically when the air convection diffusion heat, cooling effect is better. Commonly used material is AL6061 and AL6063

stamping aluminum radiator

is through the punch and die for steel, aluminum alloy sheet metal stamping, pull to rise, make a cup of tube type of radiator, stamping molding radiator inside and outside perimeter smooth, because there was no wings and the cooling area is limited. Commonly used aluminum alloy material is 5052, 6061, 6063. Stamping parts quality is small, high material utilization, is a low cost solution.

aluminum radiator thermal conductivity is ideal, more applicable to the isolation switch constant-current power supply. For the isolation switch constant-current power supply, the need to pass through the structure design of lamps and lanterns for ac and dc, high voltage and low voltage power supply isolation, can through the CE or UL certification

plastic package aluminum radiator

is a kind of plastic shell of thermal conductivity aluminum radiator core. Thermal conductivity of plastic and aluminum radiator core is molding in the injection molding machine last, aluminum radiator core is up to do, need to advance to mechanical processing. commercial ceiling lamps bead rapid conduction of heat through the aluminum radiator core to thermal conductive plastics and thermal conductive plastic using its wing form air convection, more use of the surface part of heat radiation.

LED lamp bead heat to the heat dissipation wing directly by high thermal conductive plastic, by air convection and surface radiation heat quickly.

high thermal conductive plastic radiator density to lighter than aluminium. The density of aluminum is 2700 kg/m3, and the density of plastic is 1420 kg/m3, almost half of aluminum, so the same shape of the radiator, radiator plastic weight is only half of the aluminum. And processing is simple, the molding cycle can be shortened by 20-50%, this also reduces the cost of power.

these are small make up technology to share, please continue to pay attention to lighting, we will continue to bring more wonderful content to you.

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