Patent ID: 6698502
Filing Date: 2004-03-02
Classification: F28D,H01L

Abstract:
A cooling device which discharges heat generated by a heat generation source, said cooling device comprising:a coolant contained and circulated in said cooling device, the coolant comprising liquid coolant and gaseous coolant; a coolant storing part stores said liquid coolant, the coolant storing part including first and second ends; a heat absorbing part comprising at least one first micro channel connected to the first end of said coolant storing part, in which said liquid coolant is partly filled up to a predetermined portion of said first micro channel by surface tension between said liquid coolant and an internal wall of said first micro channel and surface tension force is greater than gravitational force within said first micro channel; a condensing part for condensing said gaseous coolant to said liquid coolant, the condensing part comprising at least one second micro channel connected to the second end of said coolant storing part apart from said first micro channel, a gas moving part being connected to said first micro channel and said second micro channel and adapted to be a passage through which said gaseous coolant moves from said first micro channel to said second micro channel; a housing enveloping said coolant storing part, said heat absorbing part, said condensing part and said gas moving part; wherein when heat is applied from a heat generating source to said first micro channel, said liquid coolant partly filled in said first micro channel being vaporized to a gaseous state and simultaneously said liquid coolant stored in said coolant storing part being continuously supplied into said first micro channel by capillary force, to thereby allow said coolant to be circulated within said first and second micro channels in said housing of said cooling device; and a heat insulating element positioned between said heat absorbing part and said condensing part to prevent heat transfer therebetween.