Patent ID: 9057379
Filing Date: 2015-06-16
Classification: F04D,F05D,Y10T

Abstract:
1. A blower fan comprising: an impeller centered on a central axis extending in a vertical direction; a motor portion arranged to rotate the impeller about the central axis; and a housing arranged to accommodate the impeller; wherein the housing includes: at least one of the upper plate portion and the lower plate portion includes an air inlet defined therein; the lower plate portion is defined by a sheet having a lower surface coated with a paint, the lower plate portion including an outer circumferential cut surface; the side wall portion is made of a resin; a lower end portion of the side wall portion and an edge portion of the lower plate portion are directly and integrally joined to each other, with the outer circumferential cut surface of the lower plate portion arranged in contact with the side wall portion at a joint between the lower end portion of the side wall portion and the edge portion of the lower plate portion; and the outer circumferential cut surface of the lower plate portion is fixedly embedded within the side wall portion through insert molding.