| 摘要 |
A soundroof box for a centrifugal fan, comprising a support frame (201) adapted to support a motor (M) of the fan on one side and to support a scroll (C) of the fan on the other side; a soundproof motor covering (20) applied on the support frame and adapted to surround the motor; and a soundproof scroll case (30), separated from the motor covering and adapted to contain the scroll, such a scroll case having a substantially prismatic shape and comprising a pair of terminal walls (301) and a plurality of sidewalls (303) mounted between the terminal walls. The scroll case can be selectively mounted according to a plurality of different angular orientations with respect to the support frame, around the axis of rotation of the fan wheel, which correspond to respective angular orientations of the scroll.
|
