Patent ID: 9145900
Filing Date: 2015-09-29
Classification: F04D,F05D

Abstract:
1. An air blower for an air conditioner, comprising: a centrifugal fan; and a fan housing covering the centrifugal fan, and forming a scroll-type flow path having a varying cross-sectional area and guiding air forcibly blown by the centrifugal fan to an outlet, wherein a bottom surface of the scroll-type flow path comprises an inclined and horizontal plane wherein the inclined plane is inclined relative to the horizontal plane, wherein the bottom surface has a constant slope throughout the inclined plane, wherein a thickness of the bottom surface of the scroll-type flow path is thinnest at one region of the scroll-type flow path and is thickest at another region of the scroll-type flow path, wherein the bottom surface of the scroll-type flow path is inclined such that along a first straight line that starts where the bottom surface of the scroll-type flow path is the thinnest and ends where the bottom surface of the scroll-type flow path is the thickest, the thickness of the bottom surface of the scroll-type flow path progressively increases along the first straight line, wherein along a second straight line that crosses the first straight line, the thickness of the bottom surface along the horizontal plane is uniform.