Structure of high efficiency water-cooling heat sink

摘要

PURPOSE: A high efficiency water cooling heat sink device is provided to improve a cooling performance by maximizing a cooling passage using a heat sink block structure. CONSTITUTION: An upper block(12) and a lower block(14) are formed at upper and lower portions of a heat sink(10), respectively. Each of one sides of the upper block(12) and the lower block(14) has a curve shape in order to reduce a flow resistance in the upper block(12) and a lower block(14). Cooling passages are optimally formed at inner sides of the upper and lower blocks(12,14). Entrances(18) and exits(20) are formed at the upper block(12) and the lower block(14) to communicate with the cooling passages. The upper block(12) and the lower block(14) are contacted and welded with each other to form a welding surface(22).