公开(公告)号：US10989205B2

公开(公告)日：2021-04-27

申请号：US17025994

申请日：2020-09-18

Applicant: Delta Electronics, Inc.

Inventor： Chao-Wen Lu ,  Chih-Wei Chan ,  Che-Wei Lee

IPC: H02K7/14 ,  F04D25/06 ,  F04D29/64 ,  H02K15/02 ,  F04D19/00

Abstract: A micro fan is provided. The micro fan includes a rotor and a stator. The stator includes an axial induced coil unit and a circuit board. The axial induced coil unit is made by twining a coil in an axial direction for at least two layers and in a radial direction for at least two layers.

公开(公告)号：US10954946B2

公开(公告)日：2021-03-23

申请号：US15859084

申请日：2017-12-29

Applicant: DELTA ELECTRONICS, INC.

Inventor： Cheng-Hsien Yeh ,  Chih-Wei Chan

IPC: F04D25/06 ,  F04D25/08 ,  H05K7/20 ,  F04D17/16

Abstract: A thin fan includes a frame and a driving device. The fan frame includes a base and a frame shell. The driving device includes a stator structure and a rotor structure disposed corresponding to the stator structure. The stator structure includes a stator pole group, a bushing, a bearing and a compression-resistant pillar. The rotor structure includes a hollow-cylindrical shaft, a rotor shell, a magnetic structure and an impeller. The shaft is mounted on the outer periphery of the compression-resistant pillar and is disposed between the compression-resistant pillar and the bearing. The rotor shell is connected to the shaft. The magnetic structure is disposed on the inner wall of the rotor shell, and the impeller is connected to the rotor shell. The maximum height of the rotor structure is lower than the height of the compression-resistant pillar when the rotor structure is connected to the stator structure.

公开(公告)号：US10900516B2

公开(公告)日：2021-01-26

申请号：US16369470

申请日：2019-03-29

Applicant: Delta Electronics, Inc.

Inventor： Cheng-Hsien Yeh ,  Chih-Wei Chan

IPC: F16C17/10 ,  F16C27/02 ,  F16C32/06 ,  F04D25/06 ,  F04D29/05 ,  H02K1/17 ,  H02K1/27 ,  F01D25/18 ,  H02K5/167 ,  F04D29/02 ,  F04D29/051 ,  F04D29/053 ,  F04D29/056 ,  F04D29/057

Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.

公开(公告)号：US10816033B2

公开(公告)日：2020-10-27

申请号：US16148268

申请日：2018-10-01

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsien Yeh ,  Chih-Wei Chan

IPC: F16C17/10 ,  F16C33/10 ,  F16C32/06

Abstract: A bearing structure includes a plurality of wave-shaped grooves and an inner surface. The wave-shaped grooves are formed on the inner surface for receiving a lubricating fluid. Each of the wave-shaped grooves extends along a longitudinal axis of the bearing structure. Each of the wave-shaped grooves includes a first peak section, a second peak section, two first connecting sections, two second connecting sections and a trough section. The two first connecting sections are connected to opposite sides of the first peak section, and the two second connecting sections are connected to opposite sides of the second peak section. The trough section is disposed between the first peak section and the second peak section, and the trough section is connected to one of the first connecting sections and one of the second connecting sections. The first and second peak sections and the trough section have a circular arc structure.

公开(公告)号：US09903415B2

公开(公告)日：2018-02-27

申请号：US14511857

申请日：2014-10-10

Applicant: DELTA ELECTRONICS, INC.

Inventor： Cheng-Hsien Yeh ,  Chih-Wei Chan ,  Chao-Wen Lu

IPC: F16C33/74 ,  F16C33/72 ,  F16C17/10 ,  H02K7/08 ,  F04D25/06 ,  F04D29/051 ,  F16C33/10 ,  F04D19/00

CPC classification number: F16C33/74 ,  F04D19/002 ,  F04D25/062 ,  F04D25/0626 ,  F04D29/0513 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/1085 ,  F16C33/726 ,  F16C2360/46 ,  F16C2380/26 ,  H02K7/086

Abstract: A motor includes a shaft, a rotor shell, a bushing, a bearing, and a thrust plate. The rotor shell is connected with the shaft. The bushing has an accommodating space. The bearing is disposed in the accommodating space, and the shaft is disposed through the bearing. The thrust plate is connected with the shaft, and is disposed between a bottom of the accommodating space and a bottom of the bearing. At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center.