JP2007292443A5 - - Google Patents

Claims (8)

A substantially rectangular parallelepiped housing;
A heat exchanger provided in the housing;
A blower fan that sucks in air from the outside and blows out the air heat-exchanged with the refrigerant in the heat exchanger;
A cylindrical bell mouth that is provided in the housing so as to surround the blower fan and allows air to be blown out to the outside.
The outer periphery of the cross section of the housing in the direction orthogonal to the rotational axis direction of the blower fan is substantially rectangular,
The shape of the suction side portion extending to the housing side of the bell mouth is formed in a trumpet shape having a rounded surface,
0.2 ≦ Rs / Rb, where Rs is the radius of the rounded surface in the short side direction of the outer periphery of the casing and Rb is the radius of the rounded surface in the long side direction of the outer periphery of the casing. An air conditioner characterized by.   2. The air conditioner according to claim 1, wherein Rs / Rb ≦ 1.0.   The air conditioner according to claim 1 or 2, wherein the housing side of the rounded surface of the bell mouth ends at the same height position over the entire circumference. The air conditioning apparatus according to any one of claims 1 to 3, wherein a range of the rounded surface of the bell mouth is 90 ° or less. Sectional shape in the direction of the heat exchanger which is perpendicular to the rotational axis of the blower fan, is substantially U-shaped having a surface corresponding to the three sides of the four surfaces constituting the periphery of the housing The air conditioning apparatus according to any one of claims 1 to 4, wherein Claims wherein the cross-sectional shape of the heat exchanger in the direction perpendicular to the rotational axis of the blower fan, characterized in that said a Hoboro-shape having a surface corresponding to the four surfaces constituting the periphery of the housing Item 5. The air conditioner according to any one of Items 1 to 4. Sectional shape in the direction of the heat exchanger which is perpendicular to the rotational axis of the blower fan is approximately two glyphs having a surface corresponding to the opposing two surfaces of the four surfaces constituting the periphery of the housing The air conditioner according to any one of claims 1 to 4, wherein The air conditioner according to any one of claims 1 to 4, wherein a vertical cross-sectional shape of the heat exchanger in a direction parallel to a rotation axis direction of the blower fan is substantially a letter shape.