A steam channel, a liquid wick, and a sealed pipe make up the heatpipe heatsink. The wick is submerged in a volatilized saturated liquid and encircles the sealed tube’s tube wall. A cost-efficient method for efficient heat distribution is using heat pipes.
The power transmission capacity required for the component to cool, as well as the wick material’s heat flux capability at the heat collector, must be taken into consideration while designing heat pipes. More fluid must be concentrated and evaporated as power increases.
The heat pipe outreaches its capabilities of carrying power when it surpasses the capillary pressure of the wick. A breakthrough above conventional cooling materials might be said to be heatpipe technology. In the presence of a low-temperature variation, it can provide huge thermal conductivity. Here this article will review the heatpipe heatsink and the working technology.
Working Of Heat Pipe Technology
➢ Earlier industries including aerospace the military and others used heat pipe technology extensively.
➢ The heat sink can achieve satisfactory results even with a low-speed, low-volume motor thanks to the single heat dissipation mode and the use of heat pipe technology.
➢ On the custom heat sink of the CPU, heatpipe heatsink are frequently observed.
➢ Three components make up a heatpipe: the working fluid, the wick (also known as a capillary) and the sealed hollow tube which is often made of copper pipe.
➢ For use the end of the heatpipe closest to the heat source is known as the Evaporation End whereas the end closest to the cold source (such as fins) and farthest from the heat source is known as the Condensation End.
Design of Heat Pipe
While designing a heat pipe numerous elements need to be taken into account, including material compatibility operational temperature range, diameter, power restrictions thermal resistances, and operating orientation. However by restricting the choice to copper/water heat pipes for cooling electronics, the design problems are simplified to two key factors. These factors include the heat pipe’s effective thermal resistance and the quantity of electricity it can transport.
Types of Heatpipe
● Heatpipes can be categorized into three primary categories based on the wick structure type. These categories include the Mesh structure, sintered structure, and groove structure.
● Sintered powder heatpipe has a significant advantage over mesh or groove type heatpipe in anti-gravity.
● Heatsinks can be classified into two categories based on how the heatpipe and fins are attached: stacked fins and soldered fins (or so-called zippered fin).
● Stacked Fins
The first method entails stamping the fins onto the heatpipe without the use of any thermal interface material.
● Soldered Fins
Obviously, there must be space between the heat pipe’s diameter and the fins’ punched holes. The latter involves soldering zipped fins to a heatpipe using solder paste.
In order to significantly improve several outdated radiators and heat dissipation items, a new product called a heatpipe heatsink was created. People no longer need to rely entirely on high-air-volume motors for greater heat dissipation because of the introduction of new design concepts into the heat sink manufacturing business. Hope so you would like to read this informative article.