公开(公告)号：US20220372883A1

公开(公告)日：2022-11-24

申请号：US17881504

申请日：2022-08-04

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F01D5/30 ,  F04D29/32

Abstract: A fan includes a hub and a plurality of fan blades. The hub has an axle center. The fan blades are disposed around the hub. Each of the fan blades has a bent portion, and the bent portions of the fan blades are extended along a surrounding direction surrounding the axle center. The hub is welded with the bent portion of each of the fan blades along the surrounding direction. As a result, the number of fan blades is maximized, the strength is simultaneously ensured to be enough, and the advantages of effectively enhancing the fan characteristics are achieved.

公开(公告)号：US20190128278A1

公开(公告)日：2019-05-02

申请号：US15941776

申请日：2018-03-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Wei Chan ,  Ching-Hsien Yeh

IPC: F04D29/28 ,  F04D29/30 ,  F04D29/66

Abstract: A fan includes a hub and a blade assembly. The hub has a central portion and an extension portion. The extension portion is extended outwardly from a peripheral edge of the central portion. The blade assembly includes a plurality of blades. Each blade has a leading edge, each of the leading edges is an end point of each blade that is most close to the central portion. The blades are disposed around the hub. At least a part of the leading edges of the blades are connected to the extension portion, and distances between a center of the central portion and the leading edges of at least two blades are different. Therefore, the factors of fan and the quality of voice could be enhanced, and the multi-frequencies noise could be avoided during operation.

公开(公告)号：USD1063056S1

公开(公告)日：2025-02-18

申请号：US29848596

申请日：2022-08-03

Applicant: DELTA ELECTRONICS, INC.

Designer： Hui-Lun Chin ,  Chih-Wei Chan ,  Ching-Hsien Yeh ,  Che-Wei Lee

公开(公告)号：US20230323779A1

公开(公告)日：2023-10-12

申请号：US18208887

申请日：2023-06-13

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F01D5/30 ,  F04D29/32

CPC classification number: F01D5/3061 ,  F04D29/325

Abstract: A fan includes a hub and a plurality of fan blades. The hub has an axle center. The fan blades are disposed around the hub. Each of the fan blades has a bent portion, and the bent portions of the fan blades are extended along a surrounding direction surrounding the axle center. The hub is welded with the bent portion of each of the fan blades along the surrounding direction. As a result, the number of fan blades is maximized, the strength is simultaneously ensured to be enough, and the advantages of effectively enhancing the fan characteristics are achieved.

公开(公告)号：US11719106B2

公开(公告)日：2023-08-08

申请号：US17881504

申请日：2022-08-04

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F04D29/32 ,  F01D5/30

CPC classification number: F01D5/3061 ,  F04D29/325

Abstract: A fan includes a hub and a plurality of fan blades. The hub has an axle center. The fan blades are disposed around the hub. Each of the fan blades has a bent portion, and the bent portions of the fan blades are extended along a surrounding direction surrounding the axle center. The hub is welded with the bent portion of each of the fan blades along the surrounding direction. As a result, the number of fan blades is maximized, the strength is simultaneously ensured to be enough, and the advantages of effectively enhancing the fan characteristics are achieved.

公开(公告)号：USD1063055S1

公开(公告)日：2025-02-18

申请号：US29848587

申请日：2022-08-03

Applicant: DELTA ELECTRONICS, INC.

Designer： Hui-Lun Chin ,  Chih-Wei Chan ,  Ching-Hsien Yeh ,  Che-Wei Lee

公开(公告)号：USD1063054S1

公开(公告)日：2025-02-18

申请号：US29848581

申请日：2022-08-03

Applicant: DELTA ELECTRONICS, INC.

Designer： Hui-Lun Chin ,  Chih-Wei Chan ,  Ching-Hsien Yeh ,  Che-Wei Lee

公开(公告)号：US11952915B2

公开(公告)日：2024-04-09

申请号：US18208887

申请日：2023-06-13

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F01D5/30 ,  F04D29/32

CPC classification number: F01D5/3061 ,  F04D29/325

Abstract: A fan includes a hub and a plurality of fan blades. The hub has an axle center. The fan blades are disposed around the hub. Each of the fan blades has a bent portion, and the bent portions of the fan blades are extended along a surrounding direction surrounding the axle center. The hub is welded with the bent portion of each of the fan blades along the surrounding direction. As a result, the number of fan blades is maximized, the strength is simultaneously ensured to be enough, and the advantages of effectively enhancing the fan characteristics are achieved.

公开(公告)号：US11441433B2

公开(公告)日：2022-09-13

申请号：US16734204

申请日：2020-01-03

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F01D5/30 ,  F04D29/32

Abstract: A fan includes a hub and a plurality of fan blades. The hub has an axle center. The fan blades are disposed around the hub. Each of the fan blades has a bent portion, and the bent portions of the fan blades are extended along a surrounding direction surrounding the axle center. The hub is welded with the bent portion of each of the fan blades along the surrounding direction. As a result, the number of fan blades is maximized, the strength is simultaneously ensured to be enough, and the advantages of effectively enhancing the fan characteristics are achieved.

公开(公告)号：US11365747B2

公开(公告)日：2022-06-21

申请号：US15941776

申请日：2018-03-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Wei Chan ,  Ching-Hsien Yeh

IPC: F04D29/28 ,  F04D29/66 ,  F04D29/30 ,  F04D25/06

Abstract: A fan includes a hub and a blade assembly. The hub has a central portion and an extension portion. The extension portion is extended outwardly from a peripheral edge of the central portion. The blade assembly includes a plurality of blades. Each blade has a leading edge, each of the leading edges is an end point of each blade that is most close to the central portion. The blades are disposed around the hub. At least a part of the leading edges of the blades are connected to the extension portion, and distances between a center of the central portion and the leading edges of at least two blades are different. Therefore, the factors of fan and the quality of voice could be enhanced, and the multi-frequencies noise could be avoided during operation.