Blower with multiple air outlets

Abstract

A blower includes a base, a cover, a centrifugal impeller, and a rotating member. The cover is covered on the base, and defines a number of air outlets towards different directions. The centrifugal impeller is mounted between the base and the cover. The rotating member is rotatably mounted to the cover, and includes a shield. The rotating member is operable to rotate to cover one of the air outlets.

What is claimed is: 
     
         1 . A blower, comprising:
 a base;   a cover covered on the base and defining a plurality of air outlets towards different directions;   a centrifugal impeller mounted between the base and the cover; and   a rotating member rotatably mounted to the cover and comprising a shield, wherein the rotating member is operable to rotate to cover one of the air outlets.   
     
     
         2 . The blower of  claim 1 , wherein the cover comprises a top plate and a plurality of side plates respectively extending down from different sides of the top plate, the air outlets are respectively defined in the side plates, the rotating member further comprises a fixing plate rotatably connected to the top plate, the shield extends down from an outer edge of the fixing plate. 
     
     
         3 . The blower of  claim 2 , wherein the fixing plate is arranged between the centrifugal impeller and the top plate, the fixing plate comprises a ring-shaped rotating portion rotatably connected to an inner side of the top plate, and a connecting portion extending outward from an outer circumference of the rotating portion, to connect the rotating portion to the shield. 
     
     
         4 . The blower of  claim 3 , wherein the shield is arc-shaped, and arranged on a circumference of the connecting portion, when the rotating member is rotated, the shield is capable of engaging with an inner surface of each side plate. 
     
     
         5 . The blower of  claim 4 , wherein a ring-shaped concave portion is formed in a middle of the inner side of the top plate, a flange protrudes up from an inner circumference of the rotating portion, to rotatably engage with the concave portion. 
     
     
         6 . The blower of  claim 5 , wherein at least one notch is defined in an inner circumference of the flange, at least one outwardly bent hook is formed on the concave portion, to extend through the corresponding notch and engage with the flange. 
     
     
         7 . The blower of  claim 2 , wherein two latching slots are respectively defined in opposite ends of each side plate, two latching portions are respectively formed on opposite ends of the shield, when the shield covers one of the air outlets, the latching portions respectively engage in two corresponding latching slots at opposite ends of the air outlet. 
     
     
         8 . The blower of  claim 2 , wherein the base comprises a bottom plate, an opening is defined in the bottom plate and aligns with the centrifugal impeller, a plurality of through holes is defined in the bottom plate around the opening, a plurality of threaded holes is defined in bottoms of the side plates, a plurality of fasteners is respectively extended through the through holes and engaged in the corresponding threaded holes, to fix the base to the cover. 
     
     
         9 . The blower of  claim 2 , wherein the number of the side plates is four, and the number of the air outlets is three, the three air outlets are respectively defined in three of the side plates.