| 摘要 |
<p>An air-blowing device (1) comprises an impeller (4), a motor part (5), and a frame (6). Anti-backflow blades (7) projecting out from impeller blade rear edges (3a) are provided to respective impeller blades (3). The anti-backflow blades (7) are parallel to an upstream end surface (12) of a motor (13), and an anti-backflow blade radius (7a) of the anti-backflow blades (7) from a rotating shaft (10) is either equal to or less than a motor radius (13a) of the motor (13) from the rotating shaft (10).</p> |
