MOTOR-DRIVEN FAN WITH FAN ATTACHMENT STRUCTURE

A fan includes a cylindrical anti-slip member 26 that is rotatable integrally with a fan body. The anti-slip member 26 is a molded product of a resin material with higher mechanical strength than the resin material of the fan body. A round bar output shaft 13a is fitted into the anti-slip member 26. Recesses 26e are formed on the outer peripheral surface of the anti-slip member 26.