公开(公告)号：US20230167828A1

公开(公告)日：2023-06-01

申请号：US17859797

申请日：2022-07-07

Applicant: ASUSTEK COMPUTER INC.

Inventor： Hsin Chen LIN ,  Ing-Jer CHIOU

IPC: F04D29/28 ,  F04D29/44

CPC classification number: F04D29/281 ,  F04D29/441

Abstract: Provided is a centrifugal fan. The centrifugal fan includes an air inlet, a shaft, and a plurality of blades. The blades are arranged around the shaft. Each of the blades includes an air guiding portion on a side of the blade facing the air inlet. The air guiding portion includes a first curve and a second curve. An air inflow channel is formed between the first curve and the second curve of two adjacent air guiding portions respectively. A width of the air inflow channel is expanded in a direction away from the air inlet according to an expanding ratio.

公开(公告)号：US20240035486A1

公开(公告)日：2024-02-01

申请号：US18117013

申请日：2023-03-03

Applicant: ASUSTEK COMPUTER INC.

Inventor： Hsin Chen LIN ,  Ing-Jer CHIOU

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/28

CPC classification number: F04D29/4226 ,  F04D17/08 ,  F04D29/281

Abstract: The disclosure provides a centrifugal fan including a housing and a blade module. The housing includes a lower cover, a side wall, and an upper cover. Two ends of the side wall are respectively connected to the lower cover and the upper cover to define an internal space. The lower cover includes a plurality of lower air inlets. The blade module is arranged in the internal space, and includes a hub and a plurality of blades. The hub is rotatably arranged on the lower cover. The blades are arranged around the hub. The lower air inlets are located on the periphery of the hub, and each lower air inlet includes an outer edge relative to a rotational axis of the hub. At least one of two ends of at least one of the lower air inlets includes a protruding portion at a position corresponding to the outer edge.