CROSS FLOW FAN STRUCTURE OF INDOOR UNIT FOR SPLIT TYPE AIR CONDITIONER FOR REMOVING DISCRETE FREQUENCY NOISE PRODUCED IN ROTATION OF CROSS FLOW FAN

摘要

PURPOSE: A cross flow fan structure of an indoor unit for a split type air conditioner is provided to reduce BPF(Blade Passing Frequency), to improve reliability of manufactures, and to produce a delightful indoor atmosphere by minimizing a contact area of blade plates passing by a stabilizer. CONSTITUTION: A cross flow fan structure of an indoor unit for a split type air conditioner comprises several circular main plates(2'a) installed to an identical axis at uniform intervals and plural blade plates(2'b) obliquely combined to the axis between the main plate and the main plate. The gradient of a leading edge of the blade plate is larger than the gradient of a trailing edge. The gradient of the leading edge of the blade plate is 1/20¯1/30 and the gradient of the trailing edge is 1/200¯1/300.