Patent ID: 8468645

Claim:
A cleaning robot, comprising: a suction unit disposed in a lower portion of the cleaning robot; a suction motor for drawing in foreign materials from a surface to be cleaned, along with air, through the suction unit; a suction motor supporter supporting the suction motor, outlets being formed in both sides of a lower portion of the suction motor supporter; a dust collector capturing the foreign materials that are drawn in through the suction motor; an exhaust air feedback unit feeding a circulating air that is exhausted through the suction motor, the exhaust air feedback unit including a rotatable grill connected to the dust collector, placed inside the cleaning robot, and enclosing the suction motor, wherein the suction motor supporter is disposed in the rotatable grill, and left and right air passages, each having one end connected to the rotatable grill and an opposite end; and a spray nozzle unit placed on a leading end of the suction unit, the spray nozzle being connected to the opposite end of the left and right air passages, the spray nozzle unit spraying the circulating air fed by the exhaust air feedback unit onto the surface to be cleaned.