| 摘要 |
Disclosed is a motor cooling fan for a low noise ventilation fan. The motor cooling fan for a low noise ventilation fan comprises: a fan member (100) wherein a circular plate (110) and a plurality of blades (120) arranged on a surrounding surface of the circular plate (110) at regular intervals are integrated into each other; and a shroud (200) having a hollow space (210) to be bound to upper portions of the blades (120) to adjust a flow direction of air by rotation of the fan member (100). The shroud (200) changes the direction of the air flow to a prescribed angle to discharge the air flow entering through the hollow space (200) by the rotation of the fan member (100) to a space between the blades (120). |
