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THINSINK™ (the world's thinnest forced convection heat sink)



Novel Concepts, Inc. has developed and has patents pending for the world's thinnest forced convection (fan cooled) heat sink dubbed ThinSink™. Thinner than a credit card, this low profile ThinSink has a volumetric cooling efficiency 25 times greater than today's best microprocessor heat sinks, which means it cools 25 times more heat per cubic centimeter.

Developed to fit inside small electronic devices such as notebooks, monitors, and tablets; ThinSink efficiently cools integrated circuits, semiconductors, LED's and other microelectronic heat generating devices. The ThinSink technology may be fabricated in almost any shape, or size, and may be incorporated within existing structures such as circuit boards, or enclosures.

ThinSink's 2400% improvement in volumetric cooling efficiency, includes fan and motor, and is achieved by rotating (via motor) a thin toroid (circular fan disc), which generates an axial to radial fluid flow field (see animation) , and having the heat sink (credit card sized plate with aperture) parallel and within the radial portion of the flow field. The local radial velocity near the 40mm diameter rotating toroid's perimeter, at 6,000 rpm is ~12.6 m/s. This high velocity radial flow field enjoys further air volume (for addition cooling) due to entraining remote air (Bernoulli Effect). The volumetric cooling efficiency of today's leading overclocking heat sinks is ~0.0032 W/°C/cc, compared to 0.081 W/°C/cc for the credit card sized ThinSink.

ThinSink's smooth fan surface requires very little electrical power. A credit card sized ThinSink (85mm by 55mm by 0.75mm), using a 40mm diameter smooth fan, spinning at 6,000 RPM, consumes only 0.031 watts of electricity (up to 2 days on a AAA battery) (see chart) (data sheet) .

Contrary to its small size and low power consumption, this same credit card sized ThinSink has an amazing thermal performance of 2.73°C/W (degrees Centigrade per watt), at a fan speed of 6,000 RPM.
ThinSink is also extremely quiet, due to its thin smooth fan surface, which eliminates the pulsating sound and vibration caused by traditional fan blades. At 6,000 RPM, this credit card sized ThinSink has a sound output less than 34 dBA (quieter than soft whisper at one meter distance).

Since ThinSink is thin and flat, it's also very lightweight. An aluminum credit card sized ThinSink weighs only 13.8 grams, including motor, and only occupies 4.5 cubic centimeters of space.

Additionally, ThinSink may be very cost effective. Excluding the motor, ThinSink has only two thin flat parts, which can be stamped or molded from metal or plastic.


ThinSink™ (based on credit card sized cooler - 85mm x 55mm x 0.75mm)
Fan Speed
(rpm)
Fan Power
(watt)
Thermal
Resistance
(°C/W)
Volumetric
Thermal
Efficiency
(W/°C/cc)
Sound
(dBA)
2,000 0.005 4.36 0.051 24
6,000 0.031 2.73 0.081 34
10,000 0.101 2.15 0.103 39









Heat Sinks, Peltier Coolers, Cold Plates, Heat Spreaders, Liquid Cooled Heat Sinks, Thermal Interface Materials, Thermal Design Engineering Development CLICK PICTURE FOR CLOSE UP AND TECHNICAL DETAILS
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Credit card sized ThinSink with temperature colored air flow trajectories



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THINSINK™ 2,000 RPM


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THINSINK™ 6,000 RPM


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THINSINK™ 10,000 RPM

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THINSINK™ 150mm x 100mm


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THINSINK™ 200mm x 100mm DUAL


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THINSINK™ 110mm DIAMETER














Heat Sinks, Peltier Coolers, Cold Plates, Heat Spreaders, Liquid Cooled Heat Sinks, Thermal Interface Materials, Thermal Design Engineering Development
Heat Sinks, Peltier Coolers, Cold Plates, Heat Spreaders, Liquid Cooled Heat Sinks, Thermal Interface Materials, Thermal Design Engineering Development
Heat Sinks, Peltier Coolers, Cold Plates, Heat Spreaders, Liquid Cooled Heat Sinks, Thermal Interface Materials, Thermal Design Engineering Development