公开(公告)号：US11199197B2

公开(公告)日：2021-12-14

申请号：US16793894

申请日：2020-02-18

Applicant: Delta Electronics, Inc.

Inventor： Chao-Fu Yang ,  Shao-Ning Lee ,  Chih-Chung Chen ,  Shun-Chen Chang ,  Kuo-Tung Hsu

IPC: F04D29/44 ,  F04D29/42 ,  F04D29/28

Abstract: A centrifugal fan is provided and includes an impeller, a motor, a first case and a second case. The motor is connected with the impeller to drive the impeller to rotate. The first case and the second case are assembled to form an accommodation space for accommodating the impeller and the motor. The first case includes a first side, a first guiding wall, a flow inlet and a flow outlet. The flow inlet is disposed on the first side, the first guiding wall is connected with the first side, and the flow outlet and the flow inlet are located at a same side of the centrifugal fan. The second case includes a second side and a second guiding wall connected with the second side. The first guiding wall and the second guiding wall are assembled to form a flow guiding channel, which has cross-sectional areas with different sizes.

公开(公告)号：US09989072B2

公开(公告)日：2018-06-05

申请号：US14019238

申请日：2013-09-05

Applicant: Delta Electronics, Inc.

Inventor： Shun-Chen Chang ,  Bo-Chun Chen ,  Shih-Han Huang ,  Chao-Yu Chen

IPC: F04D29/66 ,  F04D25/06 ,  F04D29/32 ,  F04D29/38 ,  F04D29/54

CPC classification number: F04D29/666 ,  F04D25/0613 ,  F04D29/325 ,  F04D29/384 ,  F04D29/542 ,  F04D29/663

Abstract: A fan includes an impeller and a frame. The frame is used for accommodating the impeller. The frame includes a plurality of static blade groups. Each of the static blade groups has a plurality of static blades. Moreover, at least one first static blade of a first static blade group and at least one first static blade of a second static blade group are symmetric with respect to a central axis of the frame.

公开(公告)号：USD806225S1

公开(公告)日：2017-12-26

申请号：US29548254

申请日：2015-12-11

Applicant: DELTA ELECTRONICS, INC.

Designer： Shun-Chen Chang ,  Chao-Fu Yang

公开(公告)号：US11867188B2

公开(公告)日：2024-01-09

申请号：US16022192

申请日：2018-06-28

Applicant: DELTA ELECTRONICS, INC.

Inventor： Shun-Chen Chang ,  Chao-Fu Yang

IPC: F04D25/06 ,  F04D19/02 ,  G06F1/20 ,  H02K7/14 ,  F04D25/08 ,  F04D17/06 ,  H05K7/20 ,  F04D29/42 ,  F04D29/44

CPC classification number: F04D25/0606 ,  F04D17/06 ,  F04D19/02 ,  F04D25/08 ,  F04D29/4226 ,  F04D29/441 ,  G06F1/20 ,  H02K7/14 ,  H05K7/20172 ,  H05K7/20136

Abstract: A fan includes a fan frame and a driving device. The fan frame includes a base, a frame shell and static blades arranged on the periphery of the base. The driving device includes a stator structure and a rotor structure. The stator structure includes a stator magnetic pole group and a bushing. The rotor structure includes a bearing, a shaft, a rotor shell, a magnetic structure and blades. The shaft is connected with the rotor shell and disposed through the bearing. The stator magnetic pole group magnetically drives the magnetic structure to rotate the rotor shell. The blades are arranged on the periphery of the rotor shell. Two ends of the frame shell are configured with two turning portions, respectively. The two turning portions are disposed between parts of the frame shell with different curvatures.

公开(公告)号：US11578731B2

公开(公告)日：2023-02-14

申请号：US17345917

申请日：2021-06-11

Applicant: Delta Electronics, Inc.

Inventor： Yi-Han Wang ,  Chao-Fu Yang ,  Chih-Chung Chen ,  Shun-Chen Chang ,  Kuo-Tung Hsu

IPC: F04D29/42 ,  F04D17/16 ,  F04D29/62

Abstract: The disclosure relates to an asymmetrical double-outlet blower, including an upper case, a lower case and an impeller. The upper case includes an inlet. The lower case and the upper case are assembled to form a housing having an accommodation space, and form a first outlet and a second outlet. The accommodation space is in fluid communication with the first outlet, the second outlet and the inlet. The first outlet and the second outlet are disposed on a lateral periphery of the housing and face two opposite directions, respectively. An opening cross-sectional area of the first outlet is less than an opening cross-sectional area of the second outlet. The impeller is accommodated within the accommodation space of the housing, spatially corresponding to the inlet, and rotated around a rotation axis. An airflow is inhaled through the inlet and transported to the first outlet and the second outlet, respectively.

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：US11236760B2

公开(公告)日：2022-02-01

申请号：US16710739

申请日：2019-12-11

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao-Fu Yang ,  Li-Han Hung ,  Jen-Bo Huang ,  Shun-Chen Chang ,  Kuo-Tung Hsu

IPC: F04D29/38 ,  F04D29/32 ,  F04D19/00

Abstract: An impeller includes a hub and blades. In radial direction, an upper surface of the blade near the outer edge includes a groove structure, a lower surface of the blade relating to the groove structure includes a peak structure, the lower surface of the blade includes a recess structure aside the trailing edge or the leading edge. The recess structure is connected to the peak structure. The blade has at least five airfoils from the inner edge to the outer edge. The blade is defined by continuously connecting the at least five airfoils at different sections in sequence so as to form the groove structure and the peak structure respectively on the upper surface and the lower surface. The groove structure and the peak structure are aside the outer edge of the blade.

公开(公告)号：US11162498B2

公开(公告)日：2021-11-02

申请号：US16436575

申请日：2019-06-10

Applicant: DELTA ELECTRONICS, INC.

Inventor： Shun-Chen Chang ,  Chao-Fu Yang

IPC: F04D19/00 ,  F04D29/52 ,  F04D29/38 ,  F04D25/06

Abstract: A fan includes a frame, an impeller and a motor. The frame includes a base, a frame housing and a plurality of static blades. The frame housing includes an outlet. The static blades are disposed around the outer periphery of the base and connect between the base and the frame housing. A distance is provided between the outlet and the ends of the static blades located adjacent to the outlet, and the static blades are not protruding from the outlet. The impeller includes a hub and a plurality of rotor blades. The hub has a curved surface. The slopes of the straight lines connecting any two points on the curved surface are not equal. The rotor blades are disposed around the outer periphery of the hub. The motor is disposed on the base, and connects with and drives the impeller to rotate.

公开(公告)号：US10954956B2

公开(公告)日：2021-03-23

申请号：US16161731

申请日：2018-10-16

Applicant: DELTA ELECTRONICS, INC.

Inventor： Shun-Chen Chang ,  Po-Cheng Kung ,  Shih-Di Chen

IPC: F04D29/32 ,  F04D25/12 ,  F04D25/06 ,  F04D29/38 ,  F04D19/00 ,  F04D29/54

Abstract: A fan includes a fan frame, an impeller, and at least a supporting member. The fan frame includes a bottom plate and a cover plate spaced from the bottom plate. The bottom plate and the cover plate together define a first accommodating space. The cover plate has an air inlet disposed in an axial direction. A side of the fan frame is provided with at least an air outlet. The impeller is disposed in the first accommodating space and includes a hub and a plurality of blades. A cross-sectional area of the hub increases gradually along a direction from the cover plate to the bottom plate. The blades are disposed around the periphery of the hub. The supporting member is disposed between the bottom plate and the cover plate for supporting the cover plate.

公开(公告)号：US10539149B2

公开(公告)日：2020-01-21

申请号：US15010648

申请日：2016-01-29

Applicant: DELTA ELECTRONICS, INC.

Inventor： Shun-Chen Chang ,  Chao-Fu Yang

IPC: F04D29/38 ,  F04D19/00 ,  F04D25/08 ,  F04D29/66

Abstract: An impeller comprises a hub and a plurality of blades surrounding the hub. The hub comprises a shaft. Each blade includes a leading edge, an outer edge, a middle portion and a trailing edge. The leading edge, the outer edge and the trailing edge are around three sides of the middle portion. From the hub outwardly shaft, the height of the leading edge to the horizontal plane of the lowest of the blade gradually decreases first and then gradually increases.