| 摘要 |
A drain hole structure of a fan motor housing is provided to perform smooth heating and cooling by preventing whistle noise through a round, a chamfer, or a slot in one or a plurality of drain holes. A drain hole structure of a fan motor housing(30) includes a drain hole(31). The drain hole is formed on a lower end portion of the housing receiving a fan motor(10) for inhaling the air inside a vehicle and discharges moisture inside the housing. The drain hole includes a round or a chamfer(33) on an inner circumference of an inlet side. The drain hole further includes a slot. The plurality of drain holes is formed. |
