公开(公告)号：US20200232542A1

公开(公告)日：2020-07-23

申请号：US16740097

申请日：2020-01-10

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung ,  En-Yi Chu ,  Hung-Wei Lin ,  Ming-Li Tsao

IPC: F16H1/10 ,  F16H1/24

Abstract: A cycloid speed reducer includes a weight element, an input shaft and a cycloid disc. The weight element is disposed within an accommodation space of the cycloid disc. An eccentric part is disposed on the input shaft. Since the length of the input shaft is reduced, the overall length of the cycloid speed reducer is shortened. Moreover, the mass center of the weight element and the mass center of the eccentric part and the cycloid disc are arranged along the same axial direction. That is, the line passing through the mass center of the weight element and the mass center of the eccentric part and the cycloid disc is perpendicular to the input shaft. Consequently, the efficacy of the dynamic balance of the cycloid speed reducer is enhanced.

公开(公告)号：US10673304B2

公开(公告)日：2020-06-02

申请号：US16177796

申请日：2018-11-01

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chi-Wen Chung ,  En-Yi Chu

IPC: F16H1/32 ,  H02K7/116 ,  B60K17/346

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion and a rotor portion. The rotor portion includes a first eccentric ring and a second eccentric ring. The speed reducing mechanism is partially accommodated within the rotor portion. The speed reducing mechanism includes a first roller assembly, a second roller assembly, a third roller assembly, a first cycloid disc set and a second cycloid disc set. The first roller assembly includes at least one first roller. The second roller assembly includes at least one second roller. The third roller assembly includes an output shaft and at least one third roller. The first cycloid disc set is mounted around the output shaft and disposed within the first eccentric ring. The second cycloid disc set is mounted around the output shaft and disposed within the second eccentric ring.

公开(公告)号：US20180254691A1

公开(公告)日：2018-09-06

申请号：US15709702

申请日：2017-09-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chi-Wen Chung ,  Chieh-Huang Lu

IPC: H02K41/03 ,  H02K11/215 ,  H02K11/33 ,  H02K11/27 ,  H02P25/064

CPC classification number: H02K41/031 ,  H02K11/215 ,  H02K11/27 ,  H02K11/33 ,  H02P25/064

Abstract: A moving-magnet transfer platform includes a mover part, a driving part and a stator part. The mover part includes a moving table and a magnet assembly. The stator part includes plural coils, plural switch elements, a current sensor, an electric angle detector, plural magnetic field sensors and a signal processor. The plural switch elements are connected between the driving part and the corresponding coils. When the magnet assembly is moved to a position of the corresponding coil, a magnetic field change is detected by the corresponding magnetic field sensor. The signal processor is used for controlling operations of the plural switch elements. When the magnet assembly is moved to the position of the corresponding coil, the corresponding switch element is turned on under control of the signal processor, so that the moving table is moved with the magnet assembly.

公开(公告)号：US09641058B2

公开(公告)日：2017-05-02

申请号：US14162168

申请日：2014-01-23

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Hong-Cheng Sheu ,  Chi-Wen Chung ,  En-Yi Chu

IPC: H02K41/02 ,  H02K41/03 ,  H02K16/00 ,  H02K3/47

CPC classification number: H02K41/031 ,  H02K3/47 ,  H02K16/00 ,  H02K41/02

Abstract: A linear motor includes a case, a magnet assembly and a coil assembly. The case is disposed along a first direction. The magnet assembly includes at least two first magnets, among which the first magnets are disposed corresponding to and between two first magnetic yokes, respectively. The coil assembly includes a winding coil having an exposed portion, among which the exposed portion is extended along a second direction and disposed between the two first magnetic yokes, and the exposed portion is at least partially overlapped with the two first magnets in a third direction. As a result, the coil assembly and the case are driven to reciprocate along the first direction by the winding coil due to the magnetic force, thereby solving the magnetic disturbing issue, enhancing the driving force of the linear motor, and optimizing the mechanical rigidity.

公开(公告)号：US12188546B2

公开(公告)日：2025-01-07

申请号：US18093168

申请日：2023-01-04

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung ,  En-Yi Chu ,  Hung-Wei Lin ,  Ming-Li Tsao

IPC: F16H1/32 ,  F16H21/18 ,  F16H49/00 ,  H02K7/075 ,  H02K7/116 ,  H02K15/16 ,  F16H57/02

Abstract: A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

公开(公告)号：US20220158579A1

公开(公告)日：2022-05-19

申请号：US17345998

申请日：2021-06-11

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung ,  En-Yi Chu

IPC: H02P23/14

Abstract: A rotary machine device configured to contact with an external object is provided. The rotary machine device includes a rotary motor, a first encoder, a fixed housing, a fixed shaft, an output shaft and a second encoder. The rotary motor includes a motor housing and an exerting shaft. As the rotor of the motor housing rotates for a rotation angle, the rotor drives the exerting shaft to rotate for an exerting angle. The first encoder detects the rotation angle of the rotor. The output shaft includes an elastomer and is inserted in an accommodation hole of the fixed shaft. The elastomer is penetrated through the output shaft and is connected to the exerting shaft. The second encoder includes a disk and a sensor disposed on the exerting shaft and the fixed shaft respectively. The sensor detects the exerting angle of the exerting shaft through the disk.

公开(公告)号：US11336147B2

公开(公告)日：2022-05-17

申请号：US16585368

申请日：2019-09-27

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung ,  En-Yi Chu ,  Hung-Wei Lin ,  Ming-Li Tsao

IPC: H02K7/075 ,  H02K7/116 ,  F16H21/18 ,  H02K15/16 ,  F16H57/02

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The speed reducing mechanism includes at least one roller assembly, a cycloid disc, at least one fixing disc and a positioning assembly. The roller assembly is disposed within a rotor portion of the motor. While the roller assembly is rotated with the rotor portion, the roller assembly is eccentrically revolved. The roller assembly includes a wheel disc and at least one roller. The cycloid disc includes a main body and at least one cycloid tooth structure. The cycloid tooth structure is protruded from an outer periphery of the main body and in contact with the corresponding roller. While the roller assembly is eccentrically revolved, the at least one cycloid tooth structure is pushed against the corresponding roller, so that the cycloid disc is correspondingly rotated.

公开(公告)号：US11255380B2

公开(公告)日：2022-02-22

申请号：US16787856

申请日：2020-02-11

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung ,  En-Yi Chu ,  Ming-Li Tsao ,  Hung-Wei Lin ,  Jen-Yuan Chen ,  Hsien-Lung Tsai

IPC: F16C33/12 ,  F16C19/38 ,  F16C25/06 ,  F16C35/06 ,  F16C35/063

Abstract: A bearing assembly and a rotary shaft apparatus employing the same are provided. The bearing assembly is rotatably coupled with a first shaft and a second shaft. The first bearing housing includes a first annular recess having a first axial depth. The first bearing is connected with the first annular recess and the first shaft and has a first axial thickness. The second bearing housing includes a second annular recess having a second axial depth. The second bearing is connected with the first annular recess, the second annular recess and the second shaft and has a second axial thickness. The spacer is disposed between the first bearing and the second bearing and has a third axial thickness. The sum of the first axial thickness, the second axial thickness and the third axial thickness is greater than the sum of the first axial depth and the second axial depth.

公开(公告)号：US20210222394A1

公开(公告)日：2021-07-22

申请号：US16898103

申请日：2020-06-10

Applicant: Delta Electronics, Inc.

Inventor： Chi-Wen Chung

IPC: E02F3/42 ,  E02F9/26

Abstract: The present disclosure provides a work equipment system and a control method therefor. The work equipment system includes a work equipment, a temperature sensor and a controller. The work equipment includes a motor device, and the motor device is configured to provide a motive power to a load device. The temperature sensor is configured to measure a motor temperature. The controller is configured to: calculate a first current based on a required motive power command and electrical parameters; calculate a temperature difference between the motor temperature and a preset temperature; calculate a thermal power based on the temperature difference and a thermal resistance; calculate a second current based on the thermal power and the motor resistance; and compare the second current to an effective value of the first current for determining whether the second current is smaller than the first current.

公开(公告)号：US20180335113A1

公开(公告)日：2018-11-22

申请号：US15879185

申请日：2018-01-24

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chi-Wen Chung ,  Chun-Chin Su

IPC: F16H25/20

Abstract: The linear driving system comprises a motor, a screw shaft and a table. The motor comprises a rotor, a stator and a ball bearing. The stator comprises a shaft part and a spiral part. The shaft part and the spiral part jointly comprise an accommodation space. The spiral part comprises a first helical protrusion formed on the inner surface thereof. The screw shaft is coaxially coupled with the rotor. One end of the screw shaft comprises a second helical protrusion formed on the outer surface thereof, and the screw shaft is accommodated within the accommodation space. The table is fixed on the other end of the screw shaft. The first helical protrusion is engaged with the second helical protrusion. When the rotor is rotated, the rotor drives the screw shaft and the table to move forward or backward linearly in the direction of the axial of the rotor.