Three big mistake led lamps and lanterns of heat dissipation
1. Superstition thermal conductive materials
What because use high-tech materials can scatter heat out.Actually using ordinary
aluminum radiator, after multiple tests, the temperature of the heat sink is only higher than
the bottom of the radiator for 3 to 5 degrees Celsius.That is to say, if I can use to a thermal
conductivity, good material, under the condition of the thermal resistance is zero, also can
reduce the temperature for 3 to 5 degrees Celsius.
2.Superstition heat pipe
Heat pipe with good heat conduction ability, this is beyond doubt.But derived from heat
sink thermal eventually need to go through the tropical air convection.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 heat pipe radiator fins, eventually with fins heat
dissipation.And fins and heat pipe contact point but not as good as other ways to
contact.As a result of high cost, the cooling effect is not improving.But heat pipe used in
integrated led heat conduction or useful, but the structure is reasonable!
3. Superstition nano radiation material
Radiation heat dissipation in the current under the condition of 50 degrees Celsius
temperature of lamps and lanterns share can be ignored.Propaganda and manufacturer of
radiation coating even as their propaganda has good radiation effect, even achieve
blackbody radiation ability of radiation, the heat dissipation ratio but a few percent.The
significance of how to think about!And coating itself will hinder hot export, thus affecting
the heat convection.