In LED luminaires, the quality of heat dissipation is directly related to the quality and longevity of the product. However, because of the hype of some merchants and the misinformation of so-called experts, there have been some misunderstandings:
1. Superstition of thermal materials Because of the high-tech materials used, the heat can be dissipated. Its practical ordinary aluminum heat dissipation, after repeated tests, the temperature of the heat sink is only 3-5 degrees Celsius higher than the bottom of the radiator. That is to say, if a material with excellent thermal conductivity can be used, the temperature can be lowered by 3-5 degrees Celsius when the thermal resistance is zero.
2. Superstition heat pipe Heat pipe has a good thermal conductivity, which is beyond doubt. But the heat that is derived from the heat sink eventually needs to go tropical through air convection. If there are no fins that dissipate heat, the heat pipe will soon reach thermal equilibrium and the temperature will rise with the heat sink. If you add heat sink fins to the heat pipe, you will eventually use fins to dissipate heat. Moreover, the contact points of the fins and the heat pipes are not as good as other methods. The result is a high cost and no improvement in heat dissipation. However, it is useful to use heat pipes on the integrated led, but the structure is reasonable!
3. Superstition of nano-radiation materials radiated heat in the current temperature of the lamp is about 50 degrees Celsius, the proportion can be ignored. The radiation coatings promoted by the manufacturers have a good radiation effect even if they are advertised, even if they reach the radiation capacity of black body radiation, the heat dissipation proportion is only a few percent. How is this meaning still to be considered! Moreover, the coating itself hinders the heat transfer, which affects the heat dissipation of the convection.
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