| US 7,561,424 B2 | ||
| Method for cooling electronic components in an unmanned flying vehicle and a device for carrying out the method | ||
| Hakan Bjork, Ljungsbro (Sweden); Karl-Johan Molin, Linkoping (Sweden); and Lars Olsson, Linkoping (Sweden) | ||
| Assigned to Saab AB, Linköping (Sweden) | ||
| Filed on Sep. 29, 2005, as Appl. No. 11/162,956. | ||
| Claims priority of application No. 04023324 (EP), filed on Sep. 30, 2004. | ||
| Prior Publication US 2006/0250775 A1, Nov. 09, 2006 | ||
| Int. Cl. H05K 7/20 (2006.01) | ||
| U.S. Cl. 361—699 [361/700; 165/80.4] | 24 Claims |
| 1. A method for cooling electronic components of a control unit in an unmanned flying vehicle, the method comprising:
providing a cooling device in the unmanned flying vehicle, the cooling device comprising a temperature measurer configured
to measure a temperature of the electronic components, a sprayer configured to spray liquid cooling medium, a container containing
the liquid cooling medium and an enclosure containing the electronic components, the temperature measurer, the sprayer and
the container, the enclosure comprising a closed box in said flying vehicle, wherein said container and said electronic components
are integrated into the closed box,
measuring a temperature of the electronic components with the temperature measurer,
spraying a liquid cooling medium from the container directly upon said electronic components with the sprayer when the temperature
of the electronic components exceeds a predetermined level, wherein the liquid cooling medium has a boiling temperature close
to said predetermined temperature level, wherein the liquid cooling medium is sprayed directly upon the electronic components
for removing heat energy from the electronic components by evaporation of said cooling medium,
connecting the enclosure to the unmanned flying vehicle with connecting members, wherein the connecting members connect the
enclosure at a distance to a fuselage of the unmanned flying vehicle, and
adapting the device to be arranged in a single-use flying vehicle.
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