| 摘要 |
An indoor unit (100) is provided with a main body (1) having a suction inlet (2) and a discharge port (3), and a cross-flow fan (8) having an impeller (8a), wherein the impeller has multiple blades (8c), an uneven section (16) is formed on the negative-pressure surface (13b) and the pressure surface (13a) of the blades, the uneven sections are formed to protrude more in a section on the side of the fan inner circumference than in a section on the side of the fan outer circumference, and the uneven sections extend so as to tilt relative to the impeller rotational axis. As a consequence, the height of the uneven sections varies throughout the impeller rotational axis direction. |
