New Laptop Cooler Will Possibly Replace The Fan

[SgtRock]

Greetings EEVBees:

--Interesting replacement for the laptop fan.

http://www.theregister.co.uk/2012/12/12/ge_lungs_cooling_pc/

"The only relevant test of the validity of a hypothesis is comparison of prediction with experience. "
Milton Friedman 1912 - 2006

Best Regards
Clear Ether

[StubbornGreek]

That was an interesting read - I wonder how the efficiency would scale with size. Thanks for the link.

[Dago]

Quite an interesting and a simple (the best kind) idea. I wonder if piezos experience fatigue or have some any problems with lifetime? Anybody designed any ultrasonic cleaners or something?

[SeanB]

Fatigue life really depends on construction ( no voids and perfect adhesion of the piezo unit to the metal sheet backing) and drive level. If you run it in the elastic region and below the fatigue stress of the particular metal and ceramic it should last essentially forever. Most likely it will be run in the region where the fatigue life in in the order of 1 million power on hours. The driver is more likely to fail than the piezo unit.

[andyturk]

I love how the marketing weenie is wearing safety glasses. Maybe the interviewer has a spittle problem?

[poodyp]

I like how when they mention how good it will be in thin products they show an iPhone and iPad, two products that don't need cooling.

So I'm guessing they're saying to make something truly thin you need to make it run cool enough that you don't need their product.

[StubbornGreek]

I like how when they mention how good it will be in thin products they show an iPhone and iPad, two products that don't need cooling.

So I'm guessing they're saying to make something truly thin you need to make it run cool enough that you don't need their product.

This technology would allow those devices to use components that can not be passively cooled... but, I see what you're saying.

[jeroen74]

IIRC this technology is also used or being investigated for use in LED lamps.