Invention Application
- Patent Title: CENTRIFUGAL FAN
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Application No.: US17533413Application Date: 2021-11-23
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Publication No.: US20220163051A1Publication Date: 2022-05-26
- Inventor: Kuo-Tung Hsu , Shun-Chen Chang , Wen-Chun Hsu , Chao-Fu Yang , Shuo-Sheng Hsu
- Applicant: Delta Electronics, Inc.
- Applicant Address: TW Taoyuan City
- Assignee: Delta Electronics, Inc.
- Current Assignee: Delta Electronics, Inc.
- Current Assignee Address: TW Taoyuan City
- Main IPC: F04D29/42
- 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.
Public/Granted literature
- US11746798B2 Centrifugal fan Public/Granted day:2023-09-05
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