Piezoelectric fan
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United States of America Patent
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N/A
Issued Date -
Apr 26, 2007
app pub date -
Oct 24, 2005
filing date -
Oct 24, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of making a piezoelectric fan includes using a portion of the fan blade material as the substrate for the electronic circuit. By this method a single material may serve as both the substrate for the electronic circuitry and as the fanning end of the fan blade. Flex circuitry, including elements such as bleed resistors, inductors, capacitors, DC to AC conversion, shielding, or even drive circuitry, may be used. The piezoelectric material used to power the fan blade may have a Curie temperature high enough to survive reflow soldering, thus allowing the fan to be surface mountable on an electronic device. The fan may include an interconnect to facilitate connecting the piezoelectric material to the electronic circuit of the fan, and to facilitate connecting the electronic circuit of the fan to the electrical system of an electronic device. The interconnect may also facilitate mechanically mounting the fan.
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