Heat dissipating device

A heat dissipating device comprising:

• a heat dissipating part having a heat dissipating structure formed on one surface thereof, the heat dissipating structure being configured to dissipate heat received from a heat source;
• and
• a fluid distributing part disposed on the one surface of the heat dissipating part and formed with an inlet configured to supply a fluid to the heat dissipating part and an outlet configured to discharge the fluid from the heat dissipating part,
• wherein the heat dissipating structure has a porous structure that draws the fluid from the inlet by capillary action,
• wherein the fluid in liquid phase is supplied to the heat dissipating structure, and the fluid absorbs heat and vaporizes in the heat dissipating structure,
• wherein the porous structure of the heat dissipating structure draws the fluid in liquid phase thereinto by capillary action and the vaporized fluid is vented out of the heat dissipating structure,
• wherein pores of the porous structure disposed in a center of the heat dissipating structure are formed with a smaller diameter than pores of the porous structure disposed in an outer peripheral part, and
• wherein the fluid in liquid phase is drawn in the center of the heat dissipating structure, and the vaporized fluid is vented in the outer peripheral part of the heat dissipating structure.