| 摘要 |
A circulator (80) has a main body (20) forming an air duct (20F), and has an impeller (40) and a motor (50). The main body (20) forms a cylinder one end of which forms a discharge opening (20A) and the other end of which forms an intake opening (20B), with the air duct (20F) formed in the interior of the main body from the intake opening (20B) to the discharge opening (20A). A circular orifice (32) is provided at the inner circumference of the air duct (20F) and partially constricts the air duct (20F). The impeller (40) is arranged in the portion of the air duct (20F) that is constricted by the orifice (32). The motor (50) is connected to the impeller (40) and causes the impeller (40) to rotate, blowing out from the discharge opening (20A) the air that has been sucked in from the intake opening (20B). |
