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Zipper fin heat sinks are a great heat transfer solution

May 6th, 2022 at 10:44   Automobiles   Baranagar   166 views
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Heat sink can be also spelled heatsink, which is a passive heat exchanger that can transfer the heat generated by electronic or mechanical equipment to a fluid medium (usually air or liquid coolant), and then dissipate from the equipment to regulate the temperature of the equipment. In computers, heat sinks are used to cool CPUs, GPUs, certain chipsets, and RAM modules. The heat sink is used in high-power semiconductor devices (like power transistors) and optoelectronic devices (like lasers and LEDs), where the heat dissipation capacity of the component itself is insufficient to regulate its temperature.

Heat pipe heat sink is composed of a sealing tube, suction core, and steam channel. The suction core is surrounded on the wall of the sealed tube and impregnated with a saturated volatile liquid. The liquid can be distilled water, ammonia, methanol or acetone. The heat pipe heat sink filled with liquid such as ammonia, methanol and acetone still has good heat dissipation ability at low temperature. When the heat pipe heat sink is running, its evaporation section absorbs the heat generated by the heat source ( power semiconductor device, etc.), making the liquid in its wick boil to steam. The heated steam moves from the evaporating section of the heat pipe heat sink to its cooling section, where it condenses into a liquid. The condensed liquid is then returned to the evaporation section through the capillary action of the suction core on the wall, so as to repeat the above cycle process of continuous heat dissipation.

Bonded fins technique is a conventional high power large heat sink manufacturing technique. Bonded heat sink may have the bad phenomenon of loose heat sink fins, especially with thick heat sink fins, which will loose or even fall off at a higher rate. A bonded fin heat sink has a few advantages over other heat sink technologies. For one, the aspect ratio between the fin gap and fin height exceeds anything you can produce with extrusion. You can get a 60:1 ratio with a bonded fin assembly, where extrusions can only get up to a 20:1 ratio. 

The cold forged heat sink is a good choice for casting complex shapes with excellent thermal conductivity. The cold forging process allows almost perfect straightness of more fins per square millimeter. The shapes of cold-forged heat sinks include a plate-fin heat sink,round pin heatsink, and oval fin heat sinks.

Offering reduced thermal resistance of up to 60%, folded fin heat sinks are a high-performance method of meeting your cooling needs. Manufactured by folding one continuous sheet of metal in a wave pattern to maximize cooling surface area, the folded fins are then attached to the heatsink base by brazing, solder, or epoxy resin.

Zipper fin heat sinks are a great heat transfer solution. While Lori uses them in the simplest form, zipper fin has a wide range of applications and design flexibility. The zipper fin heat sink can add additional strength to the heat sink and can allow for different shapes of the stamped fins. The stamped die fins are then smoothed with a sanding belt, and these stamped fins are then attached to a heatsink base typically using solder.

vapor chamber sometimes called a planar heat pipe or a vapor chamber heat spreader, is a two-phase device used to spread heat from a heat source to a heat sink.  For electronics cooling applications, the heat transfer is usually to a heat sink in very close proximity to the heat source; a local as opposed to a remote heat sink.

AL extrusion heat sinks are the most cost-effective solutions for most electronic cooling applications. ATS offers a wide variety of aluminum profiles for custom heat sink fabrication and other applications. ATS extrudes its heat sink profiles from high-performance, smooth surface aluminum alloy 6063. Aluminum extrusion is the most operational and cost-effective process for heat sink fabrications. There is a wide range of heat sink structures available in the market and are produced as a result of aluminum heat sink extrusions.

Liquid cold plates are responsible for transferring heat from surfaces with high heat loads to the fluid used within a liquid cooling system. The performance of these components is critical to the overall effectiveness of the liquid system.

Friction stir welding liquid cold plates are finished with hard anodized, so the fiber laser can withstand the test of a harsh service environment and long-term fluid erosion. Friction Stir Welded Liquid Cold Plates are a critical component of a liquid cooling system. Friction stir welded liquid cold plates applied to a high power fiber laser, electric automobile, semiconductor, optical communication,  military transmitter, etc.

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