| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal fan motor having symmetrical air suction ports on both faces of a motor outer frame and a discharge port on one side face in the perpendicular direction to the air suction port and capable of reducing noise and suppressing reduction of air quantity. SOLUTION: The center 4b of rotation of a vane of a rotor is arranged by deviating it in the direction for letting the center 4b leave the discharge port 6 relative to the center 4a of circular suction diameter provided in the motor outer frame 1. Area of a suction part in a part where pressure is positive and high is reduced, and area of a suction part in a part where pressure is negative and low is increased to reduce noise or increase air quantity. COPYRIGHT: (C)2007,JPO&INPIT
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