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公开(公告)号：US20250084870A1
公开(公告)日：2025-03-13
申请号：US18798803
申请日：2024-08-08
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ying-Huang CHUANG , Wen-Chih LI , Chun-Wei CHEN
Abstract: A cover used in a ventilation fan includes a noise reduction structure and a shelter. The noise reduction structure has an air inlet, a flat portion surrounding the air inlet, and a peripheral portion surrounding the flat portion. The sidewall of the flat portion extends in a vertical direction from the peripheral portion. The bottom surface of the flat portion extends in a horizontal direction from the sidewall, and is a flat surface. The shelter is disposed on the peripheral portion and covers the air inlet.
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