OUTLET UNIT FOR UNDERFLOOR AIR CONDITIONING AND UNDERFLOOR AIR CONDITIONING SYSTEM USING SAME

摘要

An outlet unit (100) for underfloor air conditioning uses a centripetal fan (2) in order to realize low pressure loss, low noise and energy saving and lessen a heightwise thickness of the whole unit. The centripetal fan (2) is installed in an underfloor chamber (104) formed between a floor panel (103) and a floor slab to face an outlet (1) provided on the floor panel (103), and is driven by a motor (4). The centripetal fan (2) has a hub (200) and a plurality of vanes (20) formed on an external surface of the hub (200), and sucks an air in the underfloor chamber (104) from radially outward direction to have the same spirally flow toward the outlet (1) substantially in an axial direction.