公开(公告)号：US11476742B1

公开(公告)日：2022-10-18

申请号：US17379971

申请日：2021-07-19

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Kun Bai ,  Mengke Li ,  Zixin Que ,  Yaowu Ding ,  Xiyin Li

IPC: H02K16/02

Abstract: A multi-degree-of-freedom spherical motor includes a primary frame, a secondary frame, a tertiary frame, a terminal rotor, a first rotating shaft, a second rotating shaft, a third rotating shaft, permanent magnets and electromagnetic coils. The electromagnetic coils are arranged on an inner surface of the primary frame. Two sides at a top portion of the primary frame are symmetrically connected to the secondary frame through the first rotating shaft. The tertiary frame is arranged inside the secondary frame in a non-mechanical contact manner. The terminal rotor and the tertiary frame are connected through the third rotating shaft. The permanent magnets are arranged on one side of the terminal rotor close to the primary frame. The secondary frame and the tertiary frame are connected through the second rotating shaft. The first rotating shaft, the second rotating shaft and the third rotating shaft are perpendicular to each other.

公开(公告)号：US20220345014A1

公开(公告)日：2022-10-27

申请号：US17379971

申请日：2021-07-19

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Kun Bai ,  Mengke Li ,  Zixin Que ,  Yaowu Ding ,  Xiyin Li

IPC: H02K16/02

Abstract: A multi-degree-of-freedom spherical motor includes a primary frame, a secondary frame, a tertiary frame, a terminal rotor, a first rotating shaft, a second rotating shaft, a third rotating shaft, permanent magnets and electromagnetic coils. The electromagnetic coils are arranged on an inner surface of the primary frame. Two sides at a top portion of the primary frame are symmetrically connected to the secondary frame through the first rotating shaft. The tertiary frame is arranged inside the secondary frame in a non-mechanical contact manner. The terminal rotor and the tertiary frame are connected through the third rotating shaft. The permanent magnets are arranged on one side of the terminal rotor close to the primary frame. The secondary frame and the tertiary frame are connected through the second rotating shaft. The first rotating shaft, the second rotating shaft and the third rotating shaft are perpendicular to each other.

公开(公告)号：US11424144B2

公开(公告)日：2022-08-23

申请号：US16340380

申请日：2018-04-09

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yongan Huang ,  Zhouping Yin ,  Hao Wu ,  Jiankui Chen ,  Wenlong Li ,  Kun Bai

IPC: H01L21/67 ,  B29C64/386 ,  H05K3/12 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/379 ,  B29C64/194 ,  B29C64/112 ,  B29C64/245 ,  G01B11/24 ,  H05K1/02 ,  H05K3/20 ,  B33Y50/00 ,  B29C64/209 ,  B29C64/30

Abstract: The invention belongs to a related field of electronic manufacturing technology, and particularly relates to a conformal manufacturing device and a method for a complex curved-surface electronic system, the system includes a support platform and a six-degree-of-freedom spherical motor linkage platform, a 3D measurement module, a laser lift-off module, a curved-surface transfer printing module and a conformal jet printing module respectively mounted on the support platform and independently controllable, and specific structures and work modes of these key components are improved. The invention further discloses a corresponding manufacturing method. Through the invention, multiple process flows required in conformal manufacturing process of the complex curved-surface electronic system are effectively integrated into an integrated device, so as to realize conformal hybrid manufacturing of the rigid/flexible curved-surface electronic system with arbitrary area, and the invention has advantages of high precision, high efficiency and high automation, which greatly broadens the application scope of the curved-surface electronic manufacturing technology.

公开(公告)号：US11251689B2

公开(公告)日：2022-02-15

申请号：US16961934

申请日：2019-04-28

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Kun Bai ,  Lang Zhu ,  Mi Yuan ,  Kok-Meng Lee

IPC: H02K16/04 ,  H02K21/02 ,  B25J9/12

Abstract: A magnetically reconfigurable robot joint motor includes a coil stator, a permanent magnet rotor and a magnetic reconfiguration unit. The magnetic reconfiguration unit is arranged around an outer periphery of the permanent magnet rotor, and a coil connected to a control circuit is wound on an outer layer of the magnetic reconfiguration unit. When it is necessary to execute low rotation speed or zero rotation speed operating conditions, the control circuit inputs current pulses of different strengths, so that the magnetic reconfiguration unit obtains permanent magnetization of corresponding degree, and generates a magnetic field which acts together with a magnetic field of the permanent magnet rotor, so as to maintain a torque required for output.