Patent ID: 8307885

Claim:
A cooling apparatus for an electronic device, comprising: a condenser for condensing a coolant; a vaporizer having a vaporizing unit, the coolant passing through the condenser being introduced into the vaporizing unit and vaporized by heat exchange with an auxiliary heat source provided outside of the vaporizing unit, the vaporizing unit being made of a porous material; a venturi tube allowing the coolant passing through the vaporizer to be spouted with low pressure; an injecting unit positioned in a spouting port of the venturi tube, the injecting unit causing the coolant passing through the venturi tube to move along a spiral trajectory and to be formed into a vortex; and an evaporator allowing heat exchange between the coolant and a main heat source located outside of the evaporator, wherein the coolant is injected to be in close contact with an inner wall of the evaporator having a circular flow cross sectional area by centrifugal force while the coolant spray passes through the evaporator, wherein the injecting unit includes a body, and a vortex rib spirally formed on an outer surface of the body to form the vortex, and wherein the injecting unit further includes a guide provided at a front end of the body with a shape corresponding to the spouting port and located to be spaced apart from an inner wall of the venturi tube that defines the spouting port, thereby forming a spouting path along which the coolant moves.