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公开(公告)号：US12151781B2
公开(公告)日：2024-11-26
申请号：US17880640
申请日：2022-08-03
Applicant: Delta Electronics, Inc.
Inventor： Hung-Wei Lin , Yu-Xian Huang , Li-Chi Wu , Chi-Wen Chung
Abstract: A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer, a motor, a first sensor, a housing, a second sensor and a driving controller. The gear-plate-output, a reducer-output shaft and a reducer-fixed shaft of the reducer are disposed in parallel and sleeved on the pedal shaft concentrically. The motor drives the gear-plate-output shaft to rotate. The first sensor is disposed on the reducer-fixed shaft for sensing a first torque of the reducer-output shaft acting on the reducer-fixed shaft. The reducer-fixed shaft is connected to the housing. A frameset-fastening component protrudes outwardly from the housing, and is configured to fix the power module on the frameset. The second sensor is disposed on the frameset-fastening component for sensing a second torque of the power module acting on the frameset. The driving controller controls the motor in accordance with the second torque and the first torque.
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公开(公告)号：US12060923B2
公开(公告)日：2024-08-13
申请号：US17731074
申请日：2022-04-27
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , En-Yi Chu , Ming-Li Tsao , Hsien-Lung Tsai
IPC: F16H1/32
CPC classification number: F16H1/32 , F16H2001/323 , F16H2001/327
Abstract: A speed reducer includes an input shaft, an input gear, a fixing gear and an output gear. The input shaft includes an eccentric structure. The input gear is disposed on the eccentric structure and includes first teeth of which each with a first contact portion and a second contact portion. The fixing gear and the output gear are disposed corresponding to the input gear, wherein the fixing gear includes second teeth, and the second teeth are in contact with the first contact portions, wherein the output gear includes third teeth, and the third teeth are in contact with the second contact portions. A first tooth number difference between the first teeth and the second teeth is different from a second tooth number difference between the first teeth and the third teeth.
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公开(公告)号：US20230099907A1
公开(公告)日：2023-03-30
申请号：US17740096
申请日：2022-05-09
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , Hung-Wei Lin , Chien-Ping Huang
Abstract: A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer-output shaft and a motor-output shaft. The pedal shaft is arranged along an axial direction. The gear-plate-output shaft includes a first section and a second section arranged in the axial direction. The first section is concentrically sleeved on the pedal shaft through a first one-way bearing along a radial direction. When the pedal shaft is forced to rotate, the gear-plate-output shaft is driven through the first one-way bearing. The reducer-output shaft is concentrically sleeved on an outer surface of the second section through a second one-way bearing along the radial direction. The motor-output shaft is concentrically sleeved on the reducer-output shaft along the radial direction. When the motor-output shaft drives the reducer-output shaft to rotate, the gear-plate-output shaft is driven by the reducer-output shaft through the second one-way bearing.
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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.
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公开(公告)号：US10557534B2
公开(公告)日：2020-02-11
申请号：US15255392
申请日：2016-09-02
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , Po-Tzu Chen
Abstract: A linear-rotary actuator includes a base, a first linear motor, a second linear motor, a linear rail, and a ball screw. The first and second linear motors are disposed on the base and respectively have a coil assembly and a magnet backplane. The linear rail is located on the base. The ball screw includes a screw and a nut, wherein the screw is connected to the first linear motor, and the nut is connected to the second linear motor. When the screw and the nut are driven by the first and second linear motors to move along the linear rail in a synchronized manner, the linear-rotary actuator provides linear motion output. When the nut is driven by the second linear motor to move along the linear rail in an asynchronous manner with respect to the screw, the linear-rotary actuator provides rotary motion output.
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Patent Agency Ranking
公开(公告)号：US20250084919A1
公开(公告)日：2025-03-13
申请号：US18958230
申请日：2024-11-25
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , En-Yi Chu , Hung-Wei Lin , Ming-Li Tsao
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.
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公开(公告)号：US20240159269A1
公开(公告)日：2024-05-16
申请号：US18231627
申请日：2023-08-08
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , Hung-Wei Lin , Hsien-Lung Tsai , Wei-Ying Chu , Chin-Hsiang Chen
Abstract: A rotary bearing assembly is disclosed and includes an input shaft, an inner-ring component, an outer-ring component and a load element. The input shaft is configured to combine a rotating shaft of a motor to provide a power input. The inner-ring component includes a gear set, wherein the inner-ring component is sleeved on the input shaft through the gear set and driven by the input shaft. The outer-ring component is sleeved on the inner-ring component through a load element and engaged with the gear set, wherein when the gear set is driven by the input shaft to drive the inner-ring component, the gear set drives the outer-ring component, and the inner-ring component and the outer-ring component are rotated relatively, wherein one of the inner-ring component and the outer-ring component is served to provide a power output, and a rotational speed difference is between the power input and the power output.
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公开(公告)号：US20230406445A1
公开(公告)日：2023-12-21
申请号：US17880640
申请日：2022-08-03
Applicant: Delta Electronics, Inc.
Inventor： Hung-Wei Lin , Yu-Xian Huang , Li-Chi Wu , Chi-Wen Chung
Abstract: A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer, a motor, a first sensor, a housing, a second sensor and a driving controller. The gear-plate-output, a reducer-output shaft and a reducer-fixed shaft of the reducer are disposed in parallel and sleeved on the pedal shaft concentrically. The motor drives the gear-plate-output shaft to rotate. The first sensor is disposed on the reducer-fixed shaft for sensing a first torque of the reducer-output shaft acting on the reducer-fixed shaft. The reducer-fixed shaft is connected to the housing. A frameset-fastening component protrudes outwardly from the housing, and is configured to fix the power module on the frameset. The second sensor is disposed on the frameset-fastening component for sensing a second torque of the power module acting on the frameset. The driving controller controls the motor in accordance with the second torque and the first torque.
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公开(公告)号：US11606055B2
公开(公告)日：2023-03-14
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.
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公开(公告)号：US11578789B2
公开(公告)日：2023-02-14
申请号：US16585474
申请日：2019-09-27
Applicant: Delta Electronics, Inc.
Inventor： Chi-Wen Chung , En-Yi Chu , Hung-Wei Lin , Ming-Li Tsao
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.
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