BLOWER AND OUTDOOR UNIT OF AIR CONDITIONER COMPRISING SAME

摘要

Provided are a blower, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency, and an outdoor unit using the same. The present invention comprises: a bell mouth part spaced apart at a predetermined distance in the radial direction with respect to an outer circumferential end of a propeller fan; and a diffuser part installed on the downstream side of the bell mouth part, and having a flow path area which is enlarged from the upstream side toward the downstream side with a larger magnification rate than the magnification rate of the flow path area in the downstream end of the bell mouth part; and a stator part having a plurality of stators, wherein the stator part is arranged within the diffuser part.

主权项

1. An outdoor unit of an air conditioner including a heat exchanger, the outdoor unit comprising:
a fan having an outer circumferential end, the fan coupled to a rotation shaft and discharges air which passes through the heat exchanger to an outside of the outdoor unit; a bell mouth part including a downstream end, the bell mouth part disposed to be around the outer circumferential end of the fan and spaced apart from the outer circumferential end of the fan; and a diffuser part including:
an opening having an inner circumferential surface,an upstream end disposed at the downstream end of the bell mouth part, anda downstream end, at which the air is discharged to the outside of the outdoor unit, the diffuser part disposed to be extended from the downstream end of the bell mouth part to provide an air flow path of the fan through the opening, from the upstream end of the diffuser part toward the downstream end of the diffuser part, wherein:
the inner circumferential surface of the diffuser part is inclined at a diffuser angle (θ) with respect to an axis of a rotation of the rotation shaft so that cross-sectional area of the air flow path increases toward the downstream end of the diffuser part, andthe diffuser angle (θ) with respect to the axis of the rotation of the rotation shaft of the fan varies along a circumferential direction of the inner circumferential surface of the diffuser part.