Patent ID: 7165604

Claim:
A fan module comprising: a fan unit including a fan housing, and a fan blade disposed in said fan housing, said fan housing being formed with inlet and outlet holes; a connecting seat mounted on said fan housing and formed with a through hole that is in fluid communication with said inlet hole in said fan housing; an air guiding member mounted on said connecting seat and confining an air passage that is in fluid communication with said through hole in said connecting seat; and an air collecting member having a tubular coupling end portion connected to said air guiding member, and an air collecting end portion opposite to said coupling end portion, said air collecting member confining an air channel that is in fluid communication with said air passage in said air guiding member; wherein said tubular coupling end portion of said air collecting member is sleeved movably on said air guiding member; and wherein said air guiding member has an outer surface formed with a series of engaging teeth arranged along a length of said air guiding member, said coupling end portion of said air collecting member having an inner surface formed with an engaging rib unit to engage said teeth for positioning said air collecting member at a desired extended position relative to said air guiding member.