If you want to use the heat pipe radiator correctly, you must know enough about it.
Release time:
2024-06-05 17:39
The working principle of the heat pipe is not complicated, even relatively simple. The heat pipe is divided into two parts: the evaporation heating end and the condensation end. When the heated end begins to be heated, the liquid around the pipe wall will instantly vaporize and produce vapor. At this time, the pressure of this part will increase, and the vapor flow will flow to the condensing end under the traction of the pressure. After the vapor reaches the condensation end, it condenses into liquid, and at the same time releases a large amount of heat, and returns to the evaporation heating end to complete a cycle by means of capillary force and gravity.
The heat pipe in the heat pipe radiator has the advantage of extremely fast heat transfer speed. When installed in the radiator, it can effectively reduce the thermal resistance and increase the heat dissipation efficiency. It has extremely high thermal conductivity, up to hundreds of times the thermal conductivity of pure copper. "Thermal superconductor. Process clearance, well-designed heat pipe CPU radiator, will have ordinary no heat pipe air-cooled radiator can not achieve the strong performance. The vast majority of current CPU radiators use heat pipe technology. The heat transfer efficiency of heat pipes is related to diameter, structure and technology. At present, 6mm heat pipes are mostly used in heat pipe radiators, and 8mm products are also used in some cases. * * A research institute has given a set of reference values. A heat pipe with a diameter of 3mm can only transfer 15W of heat in 2.8 standard heat transfer cycles, while a heat pipe with a diameter of 5mm can transfer 45W of heat in 1.8 heat transfer cycles, which is 3 times that of a 3mm heat pipe! The 8mm heat pipe product can transfer up to 80W of heat in only 0.6 cycles. With such a high heat transfer, if there is no good heat sink design and fan coordination, it is easy to cause the heat to not dissipate normally.
The application of heat pipe radiator in civil electronic products, computers, CPU, graphics cards and other aspects is only a small sector, and its application in industrial power electronics is the same, such as new energy, power industry, IGBT, SVG and other high-power devices can use heat pipe radiator to dissipate heat. Among them, the heat pipe of the heat pipe radiator is a heat transfer element with high thermal conductivity. This element was invented in 1964 at Los Alomos National Laboratory (Los Alamos National Laboratory) in the United States, and reached the peak of theoretical research in the late 1960 s and began to be widely used in industrial fields in the 1970 s. The heat pipe transfers heat through the vapor and liquid phase changes of the working fluid in the fully enclosed vacuum tube. It has extremely high thermal conductivity, up to hundreds of times the thermal conductivity of pure copper, and is known as "thermal superconductor.
No matter what kind of heat dissipation method, the * final heat dissipation medium is air, and the others are all intermediate rings. Air natural convection cooling is the most direct and simple way, and the heat pipe makes the application range of self-cooling rapidly expanded. The heat pipe heat dissipation can also concentrate the heating parts, or even seal, and move the heat dissipation part to the outside or far away, which can be dustproof, moisture-proof, explosion-proof, and improve the safety, reliability and application range of electrical equipment.
keyword： Radiator,Heat pipe radiator
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