Heat pipe heat sink is the heat dissipation efficiency is very high, the power is very big, the performance is very stable one kind of heat sink, no matter be on civil or industry, have very extensive application.
Working principle of heat pipe
In fact, the working principle of the heat pipe is also very simple, the heat pipe is divided into two parts: evaporation and heating end and condensation end. When the heated end begins to be heated, the liquid around the wall of the tube will instantly vaporize, producing steam. At this point, the pressure on this part of the tube will increase, and the steam will flow toward the condensed end under the traction of the pressure. When the vapor reaches the condensing end, it condenses into a liquid and gives off a lot of heat. Finally, it returns to the heated end of evaporation by capillary force and gravity to complete a cycle.
Advantages of heat pipe heat sink
The heat pipe in the heat pipe heat sink has the advantage of extremely fast heat transfer speed, which can be installed into the heat sink to effectively reduce the value of heat resistance, increase heat dissipation efficiency, with a very high thermal conductivity, up to 100 times of the pure copper thermal conductivity, has the reputation of "hot superconductor".The heat pipe CPU heat sink with excellent technology and design will have the strong performance that the ordinary heat pipe free air cooling heat sink cannot achieve.
At present, the vast majority of the CPU heat sink used heat pipe technology. Heat pipe heat transfer efficiency and diameter, structure, process, etc. Are related to the current high end heat pipe heat sink, the use of 6mm heat pipe, but also a few with 8mm products. A Taiwan research institute gave a group of reference values, the diameter of 3mm genuine heat pipe, 2.8 standard heat transfer cycle can only transfer 15W of heat, and the diameter of 5mm heat pipe, in 1.8 heat transfer cycle maximum heat transfer reached 45W, is 3 times of 3mm heat pipe! The 8mm heat pipe product can transfer up to 80W of heat in only 0.6 cycle.With such high heat transfer, without a good heat sink design and fan, it is easy to lead to the heat can not be properly divergent.
Heat pipe heat sink in civil electronic products, computers, CPU, graphics card applications are only a small sector, it is also widely used in industrial power electronics, such as new energy, power supply industry, IGBT, SVG and other high-power devices can use heat pipe heat sink to heat.
评论
发表评论