公开(公告)号：US11965522B2

公开(公告)日：2024-04-23

申请号：US17586786

申请日：2022-01-28

申请人： DELTA ELECTRONICS, INC.

发明人： Pei-Han Chiu ,  Chien-Ming Lee ,  Chung-Yuan Tsang ,  Chao-Fu Yang

IPC分类号： B63H1/26 ,  F04D29/34 ,  F04D29/38 ,  F04D29/66

CPC分类号： F04D29/34 ,  F04D29/384 ,  F04D29/66

摘要： An impeller includes a hub and a plurality of blades. The blades are arranged around the hub, and each blade includes a leading edge, a blade tip, a root portion, a trailing edge, a windward side and a leeward side. The windward side including a first turning point and a second turning point, a first vertical height difference is formed from the blade tip to the first turning point, and a second vertical height difference is formed from the first turning point to the second turning point, and the first vertical height difference is greater than the second vertical height difference. The impeller apparently reduces the noise.

公开(公告)号：USD1047120S1

公开(公告)日：2024-10-15

申请号：US29857081

申请日：2022-10-19

申请人： Delta Electronics, Inc.

设计人： Pei-Han Chiu ,  Chien-Ming Lee ,  Chung-Yuan Tsang

摘要： FIG. 1 is a perspective view of a fan blade showing our new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines illustrate portions of the fan blade that form no part of the claimed design.

公开(公告)号：US20230033024A1

公开(公告)日：2023-02-02

申请号：US17680052

申请日：2022-02-24

申请人： Delta Electronics, Inc.

发明人： Pei-Han Chiu ,  Chien-Ming Lee ,  Chung-Yuan Tsang

IPC分类号： F04D29/66 ,  F04D19/00 ,  F04D29/32 ,  F04D29/54 ,  F04D29/52

摘要： A diagonal fan is disclosed and includes a frame and an impeller. The frame includes an inlet, an outlet, an accommodation space and a guiding wall. The inlet and the outlet are communicated through the accommodation space. The guiding wall is extended along an axial direction to the accommodation space. The impeller is accommodated within the accommodation space and includes a conical section shell. When the impeller is rotated, an airflow flowing is generated. The outer diameter of the hub of the impeller is expended gradually in a direction from the inlet toward the outlet, so that the flowing direction of the airflow is expended gradually around the peripheral of the impeller. A gap having a spacing distance is substantially maintained to form a backflow channel. A backflow is transported through an intake section, a horizontal section and an exhaust section of the backflow channel, and converged with the airflow.

公开(公告)号：US20240040740A1

公开(公告)日：2024-02-01

申请号：US18377559

申请日：2023-10-06

申请人： Delta Electronics, Inc.

发明人： Pei-Han Chiu ,  Chien-Ming Lee ,  Chung-Yuan Tsang

IPC分类号： H05K7/20 ,  F04D19/00 ,  F04D25/06 ,  F04D29/52

CPC分类号： H05K7/20172 ,  F04D19/002 ,  F04D25/06 ,  F04D29/522

摘要： A fan includes a frame, an impeller, a driving assembly and a circuit board. The frame includes an inlet, an outlet, a first accommodation space, a base and a second accommodation space, wherein the inlet and the outlet are disposed at opposite sides of the frame, and the first accommodation space is separated from the second accommodation space. The impeller is disposed in the first accommodation space and on the base. The driving assembly is disposed between the base and the impeller. The circuit board is disposed in the second accommodation space. The base includes plural first through holes, and the impeller includes plural second through holes. During the fan is operating, a first airflow is formed to flow from the inlet to the outlet, and a second airflow is formed to flow through the driving assembly via the plural first through holes and the plural second through holes.