公开(公告)号：US20220163051A1

公开(公告)日：2022-05-26

申请号：US17533413

申请日：2021-11-23

Applicant: Delta Electronics, Inc.

Inventor： Kuo-Tung Hsu ,  Shun-Chen Chang ,  Wen-Chun Hsu ,  Chao-Fu Yang ,  Shuo-Sheng Hsu

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/70

Abstract: A centrifugal fan is disclosed and includes a lower case, an impeller and an upper case. The lower case includes a bottom plate and a sidewall. The impeller is disposed on the bottom plate. The upper case is assembled with the sidewall to form an outlet. The upper case is formed by stamping and includes a first plane, an inlet and a grille. When the impeller is rotated, an airflow flowing from the inlet to the outlet is formed. The grille is protruded outwardly from the first plane, and includes a connecting frame and plural ribs. A spacing height is formed between the connecting frame and the inlet. Each rib has a first end connected to the connecting frame and a second end connected to the first plane. A pair of notches are disposed adjacent to two opposite lateral edges of the second end of the corresponding rib, respectively.

公开(公告)号：USD1073040S1

公开(公告)日：2025-04-29

申请号：US29806322

申请日：2021-09-02

Applicant: Delta Electronics, Inc.

Designer： Kuo-Tung Hsu ,  Shun-Chen Chang ,  Wen-Chun Hsu ,  Chao-Fu Yang ,  Shuo-Sheng Hsu

公开(公告)号：US11746798B2

公开(公告)日：2023-09-05

申请号：US17533413

申请日：2021-11-23

Applicant: Delta Electronics, Inc.

Inventor： Kuo-Tung Hsu ,  Shun-Chen Chang ,  Wen-Chun Hsu ,  Chao-Fu Yang ,  Shuo-Sheng Hsu

IPC: F04D29/42 ,  F04D29/70 ,  F04D17/08

CPC classification number: F04D29/4226 ,  F04D17/08 ,  F04D29/703

Abstract: A centrifugal fan is disclosed and includes a lower case, an impeller and an upper case. The lower case includes a bottom plate and a sidewall. The impeller is disposed on the bottom plate. The upper case is assembled with the sidewall to form an outlet. The upper case is formed by stamping and includes a first plane, an inlet and a grille. When the impeller is rotated, an airflow flowing from the inlet to the outlet is formed. The grille is protruded outwardly from the first plane, and includes a connecting frame and plural ribs. A spacing height is formed between the connecting frame and the inlet. Each rib has a first end connected to the connecting frame and a second end connected to the first plane. A pair of notches are disposed adjacent to two opposite lateral edges of the second end of the corresponding rib, respectively.