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Three Mistakes of LED heat dissipation

led lamps, heat is directly related to the quality and longevity. But because of speculation by some businesses, and the so-called misleading experts, there have been some misunderstanding. 

 

1 superstition thermal conductivity material 

 

Because what the high-tech materials can be used to shed heat. In fact, with ordinary aluminum heat, after several tests, the heat sink temperature is 3-5 degrees Celsius higher than the bottom of the radiator only. That is, if a true thermal conductivity can be used to especially good material, the thermal resistance in the case of zero, it can lower the temperature 3-5 degrees Celsius. 

 

2 superstition heat pipe 

 

Heat pipe has good thermal capacity, which is beyond doubt. But ultimately derived thermal heat sink through the tropical air convection away. If there is no cooling fins, heat pipes will soon reach thermal equilibrium, the temperature rise together with the heat sink. And if the increase in the heat pipe heat sink, eventually radiating fins. And the contact point fin and tube heat exposure is good but not as good in other ways. The result is a high cost, the cooling effect is not improved. However, to use the integrated heat pipe thermal LED on or useful, but reasonable to structure! 

 

3 superstition nm radiation materials 

 

Radiation heat lamps at a temperature of about 50 degrees Celsius proportion of cases can be ignored. The radiation coating manufacturers propaganda propaganda even as they did have a good radiation effects, radiation even reached blackbody radiation, the thermal gravity but a few percent. This sense of how also to be considered! And the coating itself will hinder the export of heat, thus affecting the thermal convection.



Post time: Aug-06-2016

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