| 摘要 |
The cooling device includes an opening (13) through the wall of a volute (10) of a centrifugal fan, and a shroud (12) connected to the volute. The shroud includes a volute end and a motor end. The volute end of the shroud covers the opening, and the motor end of the shroud extends around at least a portion of the periphery of the electric motor (11). |
