| 摘要 |
A variable air volume control apparatus is provided to prevent leakage of air in a closed space between a damper blade and a duct and control an excess flow effectively by forming an air leakage prevention part. A variable air volume control apparatus(1) comprises a duct(10) having passage wherein air flows, a damper blade(30), a passage separating unit, and an air leakage prevention part. The damper blade opens and closes the passage from the duct. The passage separating unit partitions the passage into predetermined areas from an air inlet side of the damper blade, and includes a closing space for applying the resistance to portions of air flowed along the passage. The air leakage prevention part prevents leakage of air in the closed space between the damper blade and the duct.
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