HiK Plates/ Heat Pipe Assemblies

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Thermal Solutions | Passive Thermal Solutions | Heat Pipes | HiK Plates/ Heat Pipe Assemblies

HiK Plates/ Heat Pipe Assemblies

Custom Heat Pipes Assemblies are often used for cooling discrete components by moving heat off the chip or sensor to a remote heat sink. Copper/water heat pipes are made of copper typically operate in the temperature range of 20 to 150°C. They are cost-effective, their effective thermal conductivity ranges from 10,000 to 100,000 W/m-K, and the heat transfer is one-dimensional.

Using Pulsating Heat Pipes vs. HiK™ Plates for Thermal Management HiK™ Plates to Improve Size, Weight, and Power (SWaP)

HiK™ or high conductivity plates are heat spreaders with embedded heat pipes to transport heat as desired in your system. These plates are particularly useful for cooling of multiple high-power components and managing the thermal load. The HiK™ plate collects and moves the heat from these discrete heat sources to the liquid-cooled edge or air-cooled heat sinks with minimal temperature gradients. As electronics continue to move forward with higher power and smaller packaging, HiK™ plates are a great way to move heat to boost performance. Whether it’s adding more power to the system or reducing the hot spot temperature in hot ambient environments, HiK™ plates provide a reliable, easy to integrate thermal solution.

Current custom heat pipe designs and options include:

Outer diameter (OD): From 1/16″ (1.5mm) to 1.5″ (38mm)
Cross-section geometry: round, rectangular or flattened
Length: any, depending on the application
Geometry: straight or multiple bends (certain bend radius limits apply)
Bonding of heat pipes to assembly: mechanical, epoxy, or soldering
Heat pipe surface coating: nickel or tin

All of ACT’s copper/water heat pipes are designed to survive numerous freeze/thaw cycles without any degradation as required by many outdoor applications.

Heat Pipe Gallery

Examples of Heat Pipe Applications:

Heat pipe heat sinks for electronics and energy conversion device cooling
Embedded heat pipe heat spreaders for electronics cooling for military applications, medical devices, power electronics, spacecraft, and more
Heat pipe heat exchangers for electronics enclosure cooling, waste heat recovery, and chemical process temperature control

Copper block-pipe-fin assembly.

Block-Heat Pipe-Fin Assembly. The heat pipes transport heat from electronics mounted on the block to a series of fins. Fans mounted over the circular openings supply air to cool the fins.

Heat Pipe used to move heat away from hot side of TEC to external heat sink.

Multiple heat pipe assemblies, partially embedded into a ruggedized chassis.

Heat Pipe FAQ

Explore our customer’s most frequently asked questions in our Heat Pipe Learning Center.

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