Air conditioner

Abstract

The present invention is to provide an air conditioner provided with a cross flow fan having sufficient air blowing efficiency. The air conditioner includes, in a housing, an air passage extending from a suction port to a blowout port, a heat exchanger arranged at the upstream side of the air passage, a cross flow fan arranged in the air passage on the downstream side of the heat exchanger, and an air passage wall provided in a downstream area of the cross flow fan to reach the blowout port. A restricting section, which restricts an air passage sectional area, is provided at a corner section of the side wall of the air passage wall, which side wall is located at each of both shaft direction ends of the cross flow fan. The restricting section is formed to have a shape by which, in a downstream area of the cross flow fan, the air passage sectional area having a rectangular cross section expanding from the upstream side to the downstream side is restricted so as to reduce an enlargement ratio of the air passage sectional area. Further, the restricting section has a smooth restricting surface crossing the corner section of the cross section of the air passage, and the cross-sectional shape of the restricting surface is set to be gradually enlarged from the upstream side to the downstream side of the air flow.

Dependencies are inferred from the claim text.