Patent ID: 8932014
Filing Date: 2015-01-13
Classification: F04D

Abstract:
1. A fan assembly comprising a first fan and a second fan placed on the first fan, each of the first fan and the second fan comprising a frame, a plurality of extending portions extending from a side of the frame of the first fan, a buckling block being formed on an inner side face of each of the extending portions, a plurality of receiving portions being formed at a side of the frame of the second fan corresponding to the extending portions, respectively, a positioning groove being defined in each of the receiving portions, the buckling blocks being engagingly buckled in the positioning grooves, respectively; wherein each frame comprises an annular side wall, a plurality of flanges extending horizontally and outwardly from a top of the annular side wall of the first fan, the extending portions extending downwardly beyond a bottom of the annular side wall.