New TP-S30 thermal interface pads from MH&W International provide 3.0 W/mK of thermal conductivity between hot components and heat sinks at lower costs than competing gap filler materials. Pads of TP-S30 thermal gap fillers are soft and compliant for easy compression and filling of air gaps between mounting surfaces to optimize heat transfer. Applications for these gap … [Read more...]
Ultra-Thin Waterproof Piezoelectric Speaker
Murata Electronics North America recently launched an ultra-thin waterproof piezoelectric speaker. With a thickness of only 0.9mm, this 19.5mm x 14.1mm speaker enables greater design freedom for the rapidly growing and evolving mobile market. The speaker achieves IPX7 grade waterproof protection without the need of a waterproof acoustic membrane. Using acoustic mesh and … [Read more...]
Influence of Motor Supports on Cooling Performance of Small Scale Fans
Ed J. Walsh, Jason Stafford & Vanessa Egan Stokes Research Institute, Dept. of Mechanical and Aeronautical Engineering, University of Limerick INTRODUCTION Today’s marketplace consists of many portable computing devices such as personal digital assistants and smart phones. Currently over one billion handset type units are shipped every year. The functionality and power … [Read more...]
Miniature Environmental Control Unit for Electronics
Aspen Systems has completed the development and military qualification of ECU-Chill™, a ruggedized refrigeration-based environmental control unit (ECU) for cooling electronics in mobile applications. ECU-Chill™ maintains sealed electronics enclosures at or below ambient temperatures, enabling Commercial-Off-The-Shelf (COTS) electronics to be safely and effectively used for … [Read more...]
The Better Box Model
Introduction For the consumer, natural convection cooling or fan-less cooling is the method of choice. It is silent, it is reliable, it is simple, and it is environmentally sound because no additional energy is used to remove the excess heat. For the thermal engineer, fan-less cooling is more problematic. On the plus side, no fan is needed, so there is an attractive cost … [Read more...]
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