COOLING DEVICE AND ELECTRONIC DEVICE COMPRISING SUCH A COOLING DEVICE

A cooling device using pulsating fluid for cooling of an object (8), comprising a transducer (2) adapted to generate pressure waves at a drive frequency, a tube (3), having a first end adapted to receive said pressure waves from the transducer, and a second end (7) adapted to generate a pulsating ne...

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Bibliographische Detailangaben
Hauptverfasser:	AARTS, Ronaldus, M, LASANCE, Clemens, J., M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING LIGHTING MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRINTED CIRCUITS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A cooling device using pulsating fluid for cooling of an object (8), comprising a transducer (2) adapted to generate pressure waves at a drive frequency, a tube (3), having a first end adapted to receive said pressure waves from the transducer, and a second end (7) adapted to generate a pulsating net output flow towards the object (8). Compared to a Helmholtz resonator, where the length of the tube is short compared to the wavelength, the length (L) of the tube according to the present invention is greater than lambda/10, which has been found to be sufficiently long to avoid Helmholtz resonance. Instead, the tube acts as a transmission line, that applies a velocity gain to the pulsating flow.