COVER, FAN UNIT, AND VENTILATION FAN

    公开(公告)号:US20250084870A1

    公开(公告)日:2025-03-13

    申请号:US18798803

    申请日:2024-08-08

    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.

    HOUSING POSITIONING STRUCTURE FOR VENTILATION FAN

    公开(公告)号:US20240410597A1

    公开(公告)日:2024-12-12

    申请号:US18734430

    申请日:2024-06-05

    Abstract: A housing positioning structure includes a housing, an upper supporting structure and a lower supporting structure. The housing includes a top plate and side plates vertically arranged on sides of the top plate. An accommodation space is enclosed by the top plate and the side plates. A horizontal line is formed at the lower edge of the side plate. The direction above and away the horizontal line is defined as an above-body direction, and the direction below and away the horizontal line is defined as a below-body direction. The upper supporting structure is located on the above-body direction side. The lower supporting structure is disposed on the side plates and extends toward the below-body direction side.

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