公开(公告)号：US11426832B2

公开(公告)日：2022-08-30

申请号：US16917644

申请日：2020-06-30

Applicant: Delta Electronics, Inc.

Inventor： Yen-Ming Lu ,  Chin-Wei Chang ,  Ching-Hsiung Tsai

IPC: B23Q17/09 ,  B06B1/02 ,  G01R19/00

Abstract: The present disclosure provides an ultrasonic drive and driving method configured for driving an ultrasonic tool. The ultrasonic drive includes a switch module, a sensing element and a control element. The sensing element senses the voltage and current of the ultrasonic tool and generates a sensing signal accordingly. The control element receives the sensing signal and outputs a control signal. The switch module outputs an ultrasonic signal according to the control signal for controlling the vibration of the ultrasonic tool. When the ultrasonic drive operates a frequency sweep function, the control element determines an operating interval and an operating frequency of the ultrasonic signal. When the ultrasonic drive operates a frequency following function, the control element adjusts the operating frequency according to the sensing signal for keeping the impedance of the ultrasonic tool consistent.

公开(公告)号：US11168763B2

公开(公告)日：2021-11-09

申请号：US16728505

申请日：2019-12-27

Applicant: Delta Electronics, Inc.

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

IPC: F16H1/32 ,  F16H55/34 ,  F16H57/022

Abstract: A two-stage cycloid speed reducer comprises two rotating disc assemblies. Each rotating disc assembly comprises two cycloid discs. In other words, the cycloid speed reducer has four cycloid discs to be in contact with the corresponding rollers. Consequently, the load withstood by each cycloid disc is reduced. Since the cycloid speed reducer has stronger structural strength, the cycloid speed reducer can be applied to the high-load circumstance. Moreover, an eccentric assembly of the eccentric device includes a plurality of eccentric cylinders. The eccentric cylinders are disposed within the axle holes of the corresponding cycloid discs. Due to the eccentric cylinders, the eccentric direction of two cycloid discs is opposite to the eccentric direction of the other two cycloid discs. Consequently, it is not necessary to install an additional weight compensation device in the cycloid speed reducer to compensate the dynamic equilibrium. Moreover, the cycloid speed reducer can be assembled easily.

公开(公告)号：US10677321B2

公开(公告)日：2020-06-09

申请号：US16013264

申请日：2018-06-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Jia-Ming Wu ,  Yu-Xian Huang ,  Kuo-Yuan Hung ,  You-Chiuan Hsu

IPC: F16H1/32 ,  H02K7/116 ,  F16H57/02 ,  H02K7/102

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion, a shaft portion and rotator portion. The rotator portion includes first and second eccentric rings. The speed reducing mechanism includes first, second and third roller assemblies and first and second cycloid disc sets. These roller assemblies include first rollers, second rollers and third rollers. The first cycloid disc set is mounted around the first eccentric ring, and includes first teeth and second teeth. The second cycloid disc set is mounted around the second eccentric ring, and includes third teeth and fourth teeth. The first teeth are contacted with the first rollers. The third teeth are contacted with the second rollers. The second teeth and the fourth teeth are contacted with the third rollers.

公开(公告)号：US20200019137A1

公开(公告)日：2020-01-16

申请号：US16460095

申请日：2019-07-02

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsiung Tsai ,  Yen-Ming Lu

IPC: G05B19/406 ,  H01L21/67 ,  G05B19/416

Abstract: A production system, a drive and an operating method provide the functions of quality measurement and mechanism diagnosis. The production system has a hierarchical processing structure. The drive includes a real system driving module and a virtual system driving module. The real system driving module generates a mechanism real operation parameter information. In a system identification mode, the drive creates at least one virtual mechanism model. The drive generates a mechanism stimulation operation parameter information according to a processing strategy of a controller, the mechanism real operation parameter information and the at least one virtual mechanism model. The controller performs a quality measurement operation, performs a mechanism diagnosis operation and/or adjusts the processing strategy according to the mechanism real operation parameter information and the mechanism stimulation operation parameter information.

公开(公告)号：US09625005B2

公开(公告)日：2017-04-18

申请号：US14930026

申请日：2015-11-02

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai

IPC: F16H1/32 ,  B60K17/04

CPC classification number: F16H1/32 ,  B60K17/04

Abstract: A speed reducer includes a first transmission shaft, an eccentric wheel, a first roller assembly, a rotating wheel, a second roller assembly and a second transmission shaft. The rotating wheel includes a main body and an axle hole. The main body includes a convex structure and a concave structure. The convex structure is protruded from an outer periphery of the main body and has outer teeth. The outer teeth are contacted with the corresponding first rollers. The concave structure is concavely formed in a surface of the main body and includes inner teeth. The inner teeth are contacted with plural second rollers of the second roller assembly. Since the speed reducer is designed to have four operating situations, the speed reducer can have various reduction ratios.

公开(公告)号：US20230220890A1

公开(公告)日：2023-07-13

申请号：US17842723

申请日：2022-06-16

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsiung Tsai ,  Chung-Kuang Ko ,  Yung-Chih Hsu ,  Cheng-Hsun Tsai

IPC: F16D55/22

CPC classification number: F16D55/22 ,  F16D2121/22

Abstract: A brake device of a rotating motor is disclosed and includes a base, an upper plate, a sliding plate, a transmission component, a lining plate, a connection element, a planar plate and an elastic component. A rotating shaft runs through the base in an axial direction. The sliding plate is arranged between the base and the upper plate, and driven by the drive module. The transmission component is sleeved and fixed on the rotating shaft, and includes a sleeved peripheral edge, a limiting portion, and a perforation. The limiting portion is protruded outwardly from the sleeved peripheral edge in a radial direction, and the perforation is passed through the limiting portion along the axial direction. The lining plate sleeved on the sleeved peripheral edge is located between the sliding plate and the upper plate. The elastic component is arranged between the planar plate and the limiting portion.

公开(公告)号：US11316452B2

公开(公告)日：2022-04-26

申请号：US17083703

申请日：2020-10-29

Applicant: Delta Electronics, Inc.

Inventor： Ching-Hsiung Tsai ,  Yen-Ming Lu ,  Chia-Hui Chen

IPC: H02P6/34 ,  H02P29/00 ,  H02P21/18

Abstract: An electronic device includes a motor, a sensing device and a controller. The motor provides a motive power to the load. The sensing device measures a plurality of motion parameters of the motor. The controller calculates a real system parameter between the motor and the load according to the motion command and the plurality of motion parameters. According to the motion command and the plurality of motion parameters, the controller acquires a real value of a rotation speed of the motor. Moreover, controller establishes a system model according to the motion command and the real system parameter so as to acquire an estimated value of the rotation speed of the motor. If the first mean square error is not smaller than the first target value, the controller performs a particle swarm optimization algorithm to change the estimated value of the rotation speed of the motor.

公开(公告)号：US10914616B2

公开(公告)日：2021-02-09

申请号：US16178233

申请日：2018-11-01

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chi-Wen Chung ,  Ming-Tien Tsai ,  Chun-Hung Chen

IPC: G01B7/30 ,  G01D11/02 ,  G01D5/26 ,  G01D5/14

Abstract: An encoder applied to a rotatable device including a code disc set, at least one bearing, a bearing housing, a main housing, a sensor and an elastic assembly. The code disc set is disposed on a rotation end of the rotatable device. The bearing is disposed around the rotation end, and the bearing housing is disposed around the bearing. The main housing is connected with a first end of the bearing housing. The sensor is disposed on the main housing and corresponds to the disc wheel set, and there is an interval between the sensor and the code disc set. The elastic assembly is connected with a second end of the bearing housing and a fixing end of the rotatable device. Therefore, the interval between the sensor and the code disc set is maintained to be fixed, and the good position detection performance and stable signals are obtained.

公开(公告)号：US10601295B2

公开(公告)日：2020-03-24

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 ,  H02P25/064 ,  H02K11/27 ,  H02K11/33 ,  H02K11/215

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：US20200080870A1

公开(公告)日：2020-03-12

申请号：US16178233

申请日：2018-11-01

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chi-Wen Chung ,  Ming-Tien Tsai ,  Chun-Hung Chen

IPC: G01D11/02 ,  G01D5/14 ,  G01D5/26

Abstract: An encoder applied to a rotatable device including a code disc set, at least one bearing, a bearing housing, a main housing, a sensor and an elastic assembly. The code disc set is disposed on a rotation end of the rotatable device. The bearing is disposed around the rotation end, and the bearing housing is disposed around the bearing. The main housing is connected with a first end of the bearing housing. The sensor is disposed on the main housing and corresponds to the disc wheel set, and there is an interval between the sensor and the code disc set. The elastic assembly is connected with a second end of the bearing housing and a fixing end of the rotatable device. Therefore, the interval between the sensor and the code disc set is maintained to be fixed, and the good position detection performance and stable signals are obtained.