Four heat dissipation methods for LED heat sinks2018-06-19
There are many different kinds of radiators, and the division methods are also different. For example, there are copper radiators, aluminum radiators, and power radiators depending on the material. However, there are blade radiators from the category. LED radiators and other different, today focused on to introduce the following several methods and forms of heat dissipation LED radiator, hoping to be helpful to everyone.
At present, the heat dissipation methods of LED radiators and other materials are basically the same, and are mainly divided into four types: air cooling, water cooling, semiconductor cooling, and chemical cooling.
Air cooling refers to the removal of heat from the CPU through a cooling fan. Its cooling medium is air.
Water cooling is the removal of heat from the CPU through water. Its cooling medium is liquid like water. Its efficiency is higher than air cooling, but it has a fatal weakness, that is, the refrigeration equipment is complex and there is leakage of water. Hidden troubles, so it is not yet possible to enter a large-scale practical stage.
Semiconductor refrigeration is the use of a special semiconductor cooling sheet to generate a temperature difference when the power to refrigerate, its cooling temperature is low, the cold surface temperature can reach minus 10 degrees Celsius below, but the cost is too high, and may be due to the temperature is too low resulting CPU node Dew caused a short circuit, and now the technology of semiconductor cooling sheet is not mature enough and it is not practical enough.
The way of chemical cooling is mainly similar to that of dry ice, and the heat is dissipated through the physical difference of temperature.
At present, LED heatsinks are mainly based on the use of the third method, namely, semiconductor cooling and heat dissipation, and because of the LED material used, the efficiency is still relatively high, and the only insufficiencies may be that the price is expensive and it is still impossible. A large area is in the stage of promotion and use, and only LED radiators are used in high-end equipment.