AIR CONDITIONING UNIT FOR VEHICLE

An air conditioning unit for a vehicle includes an air conditioning case, a blower, a cooler including a core, and a drain port that drains condensed water generated in the cooler from the air conditioning case. A bottom surface of the air conditioning case defines a drain path extending from a boundary between the blower and the air conditioning case to the drain port. The drain path is inclined downward toward the drain port. A backflow prevention rib protrudes from the bottom surface to extend along a direction intersecting with a width direction of the air conditioning case. The backflow prevention rib is configured to guide the condensed water to the drain port. The backflow prevention rib is located below a virtual line that extends from the boundary to a lower end of an upstream surface of the core.