Patent ID: 7762767

Claim:
An axial-flow fan comprising: a fan housing including an air channel having an air discharge opening and an air suction opening; an impeller having a plurality of blades and disposed inside the fan housing; a rotor to which the impeller is fixed; a stator disposed corresponding to the rotor; a motor case to which the stator is fixed, including a bottom wall portion located at a side of the air discharge opening and a peripheral wall portion formed continuously with the bottom wall portion and extending toward the air suction opening; and a plurality of stationary blades disposed at intervals in a rotating direction of the impeller and located inside the air discharge opening of the air channel, each of the plurality of stationary blades connecting the peripheral wall portion of the motor case and the fan housing, each of the plurality of stationary blades having an external end portion connected to an inner wall portion of the fan housing, an internal end portion connected to the peripheral wall portion of the motor case, a discharge-side edge portion formed between the external end portion and the internal end portion and located at a side of the air discharge opening, and a suction-side edge portion formed between the external end portion and the internal end portion and located at a side of the air suction opening, wherein an outer surface of the bottom wall portion of the motor case is located closer to the air suction opening than the discharge-side edge portions of all or most of stationary blades are located.