| 摘要 |
PROBLEM TO BE SOLVED: To provide a fanless electric fan capable of feeding air by increasing a flow speed and a flow rate even if the fan is simply configured.SOLUTION: There is provided a drive air-blowing part having a blowout port part 20 and a suction port part, inner air AI sucked at the suction port part is blown out of a blowout port 31 of the blowout port part and mixture air AM containing inner air and auxiliary air is fed out while entraining it. The blowout port part comprises a housing 22 extending from the drive air-blowing part. The housing has a rear side outer air flowing-in port 36 and a front side auxiliary air, i.e. outer air flowing-out port 37 and also has a communication passage 35 with a shape gradually narrowing on the flowing-out port side. On both sides of the flowing-out port, are provided with blowout ports. The communication passage and the blowout port are extended along an axial direction of the housing up to a part near a ceiling wall at the extremity end of the housing and arranged there. |
