Patent ID: 7980294
Filing Date: 2011-07-19
Classification: F28D,H01L

Abstract:
1. A liquid cooling system for an electronic apparatus having a heat-generating element within a housing thereof, comprising: a heat-receiving jacket for transferring heat generated from a heat-generating element to a liquid coolant, said heat-receiving jacket including a bottom surface having a plurality of grooves which intersect each other and an inclined shape which reaches a peak around a central portion thereof, wherein the liquid coolant becomes evaporated within the heat-receiving jacket to form an evaporated coolant and the evaporated coolant exits from an outlet of said jacket; a conduit having a first end thereof connected to the outlet of said heat-receiving jacket and conducting the evaporated coolant therein; a radiator connected to a second end of said conduit for guiding the evaporated coolant supplied from said heat-receiving jacket into said radiator, so as to cool and condense the evaporated coolant to become condensed liquid coolant; and a driving means including a Peltier element for applying a driving force for circulating the liquid coolant as a whole by repeatedly heating and cooling a portion of the condensed liquid coolant supplied from said radiator to create pressure changes, said driving means restricting a flow of the condensed liquid coolant within said driving means into one direction to an inlet of said heat-receiving jacket, thereby circulating the liquid coolant in one direction within a closed circulation loop including said heat-receiving jacket, said radiator, and said driving means, wherein the peak of the bottom surface does not extend past said conduit when seen from a side view, wherein said driving means includes a driving means inlet for receiving liquid coolant from said radiator, a driving means outlet for supplying liquid coolant to said heat-receiving jacket, a first check valve provided after the driving means outlet, and a second check valve provided prior to the driving means inlet, wherein the driving means inlet is positioned higher than the driving means outlet, and wherein the driving means, the heat receiving jacket, and the radiator are connected in series to form the closed circulation loop.