Patent ID: 8721274
Filing Date: 2014-05-13
Classification: F04D,F24F

Abstract:
1. A blower, comprising: a scroll casing; suction holes provided at opposite positions of the scroll casing; a discharge hole provided at a top position of the scroll casing which is orthogonal to the suction holes; a centrifugal fan of a both-ends suction type received in the scroll casing; and a divergence guide portion formed along an inner circumference of the scroll casing by inwardly bending the scroll casing and extending to the discharge hole provided at the top position of the scroll casing to diverge air flowing to the discharge hole after passing through the centrifugal fan, and to diffuse the air to opposing sides of the discharge hole, wherein a bending depth and a bending width of the divergence guide portion increases along an air flow direction and a width of the scroll casing increases along an air flow direction, and the divergence guide portion is inwardly bent to have a single V-shaped cross section.