Patents by Inventor Kuo-Min WANG

Kuo-Min WANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240097520
    Abstract: An axial flux motor includes a rotor assembly and a stator assembly. The rotor assembly has magnets. The stator assembly has a circuit substrate, segmented iron cores, and a coil. The circuit substrate extends radially. The segmented iron cores are supported on the circuit substrate to be opposite to the magnet in the axial direction. Segmented iron cores arranged in the circumferential direction. A coil is sleeved on a segmented iron core. Holding seats of an insulating material correspond respectively to the segmented iron cores. A holding seat abuts with and covers a segmented iron core from both axial sides and the circumferential direction, and is used for winding the coil. The circuit substrate has slot holes. A slot hole is used for embedding and positioning a portion of a holding seat that protrudes more towards one axial side than the coil.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 21, 2024
    Inventors: Keng-Chang WU, Guo-Jhih YAN, Hsiu-Ying LIN, Kuo-Min WANG
  • Publication number: 20230006490
    Abstract: In a rotor core and a motor including the rotor core, a rotor yoke includes magnetic pole core groups arranged in a circumferential direction and each including a magnetic conductor at a center and permanent magnets around the magnetic conductor. A center of each magnetic pole core group is defined by the magnetic conductor, so that the number of magnets used can be reduced to achieve low cost. The permanent magnets around the magnetic conductor increases a magnetic flux concentration effect while preventing magnetic flux leakage to achieve high efficiency and high performance.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 5, 2023
    Inventors: Guo-Jhih YAN, Keng-Chang WU, Kuo-Min WANG
  • Publication number: 20220379716
    Abstract: A driver of an automatic guided vehicle includes a crown gear (turning gear) fixed to a bottom of a vehicle body, a support shaft penetrating a center of the crown gear and extending vertically from the vehicle body, a frame supported by the support shaft to be rotatable on a horizontal plane, a wheel axle rotatably and horizontally provided on the frame, and a wheel connected to the wheel axle. A first motor and a second motor, which are drive sources, and a first planetary gear mechanism and a second planetary gear mechanism are provided at both ends in an axial direction of the wheel axle, respectively. Each carrier of the first and second planetary gear mechanisms is connected to the wheel axle, and each ring gear of the first and second planetary gear mechanisms meshes with the crown gear.
    Type: Application
    Filed: May 18, 2022
    Publication date: December 1, 2022
    Applicants: NIDEC CORPORATION, Nidec Taiwan Corporation
    Inventors: Guo-Jhih YAN, Keng-Chang Wu, Huu-Tich NGO, Kuo-Min WANG, Hsiu-Ying LIN
  • Patent number: 11469648
    Abstract: A motor includes a rotor including a rotating shaft extending along a center axis, a cylindrical rotor core provided outside the rotating shaft in a radial direction, and two discoid weight plates provided at two ends of the cylindrical rotor core in an axial direction, and a stator opposing the rotor in the radial direction. A radius of each weight plate is smaller than a radius of the rotor core, and a difference between the radius of the rotor core and the radius of each weight plate is larger than an air gap between an outside of the rotor core in the radial direction and an inside of the stator in the radial direction.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: October 11, 2022
    Assignee: Nidec Corporation
    Inventors: Hsin-Nan Lin, Guo-Jhih Yan, Sheng-Chan Yen, Yu-Wei Hsu, Kuo-Min Wang, Cheng-Tsung Liu
  • Patent number: 11303166
    Abstract: Embodiments of the disclosure provide an axial flux motor and an electrical product. The motor includes a rotor which rotates with a central axis as a center, and a stator which is disposed opposite to the rotor in an axial direction and has a plurality of stator units, the plurality of stator units being disposed around the central axis. The stator unit includes a core unit formed by a core piece, and a coil unit formed by a wire wound and disposed around the core unit. A height of the core unit in the axial direction is less than or equal to a height of the coil unit in the axial direction. With the embodiments of the disclosure, the dependency between the coil and the core in design and manufacture can be reduced, and the degree of design freedom can be improved.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: April 12, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Guo-Jhih Yan, Hsiu-Ying Lin, Keng-Chang Wu, Kuo-Min Wang
  • Patent number: 11018534
    Abstract: A rotor is located around an outer periphery of a rotation shaft of a motor and rotates together with the rotation shaft. The rotor includes magnetic steel plates laminated in an axial direction and including a through-hole group passing therethrough in the axial direction. The through-hole group includes through-holes each including, as a central line, an imaginary line extending in the radial direction and having an arcuate shape extending from the central line to both sides and radially outward. The through-holes are arranged in the radial direction. Among the through-holes, a radius of curvature of an arcuate radially inner side surface of the radially innermost through-hole is the smallest, and/or a radius of curvature of an arcuate radially outer side surface of the radially outermost through-hole is the largest.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: May 25, 2021
    Assignee: Nidec Corporation
    Inventors: Sheng-Chan Yen, Yu-Wei Hsu, Guo-Jhih Yan, Hsin-Nan Lin, Kuo-Min Wang, Cheng-Tsung Liu
  • Publication number: 20200373817
    Abstract: A motor includes a shaft arranged to be rotatable around a center axis, two rotors arranged in an axial direction to have a predetermined distance and at least one of rotors including a magnet, a stator arranged between the two rotors and including a plurality of stator cores arranged in a circumferential direction and coils wound on the plurality of stator cores, and a circuit board provided between the stator and the rotor including the magnet. The circuit board includes a plurality of groove holes penetrating the circuit board in an axial direction and arranged in a circumferential direction. The plurality of stator cores are fitted into the plurality of groove holes.
    Type: Application
    Filed: November 2, 2018
    Publication date: November 26, 2020
    Inventors: Guo-Jhih YAN, Keng-Chang WU, Kuo-Min WANG, Hsiu-Ying LIN, Ming Zan LIN, Chiaching LIN
  • Publication number: 20200204016
    Abstract: Embodiments of the disclosure provide an axial flux motor and an electrical product. The motor includes a rotor which rotates with a central axis as a center, and a stator which is disposed opposite to the rotor in an axial direction and has a plurality of stator units, the plurality of stator units being disposed around the central axis. The stator unit includes a core unit formed by a core piece, and a coil unit formed by a wire wound and disposed around the core unit. A height of the core unit in the axial direction is less than or equal to a height of the coil unit in the axial direction. With the embodiments of the disclosure, the dependency between the coil and the core in design and manufacture can be reduced, and the degree of design freedom can be improved.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 25, 2020
    Applicant: NIDEC CORPORATION
    Inventors: Guo-Jhih YAN, Hsiu-Ying LIN, Keng-Chang WU, Kuo-Min WANG
  • Publication number: 20190372427
    Abstract: A motor includes a rotor including a rotating shaft extending along a center axis, a cylindrical rotor core provided outside the rotating shaft in a radial direction, and two discoid weight plates provided at two ends of the cylindrical rotor core in an axial direction, and a stator opposing the rotor in the radial direction. A radius of each weight plate is smaller than a radius of the rotor core, and a difference between the radius of the rotor core and the radius of each weight plate is larger than an air gap between an outside of the rotor core in the radial direction and an inside of the stator in the radial direction.
    Type: Application
    Filed: February 19, 2018
    Publication date: December 5, 2019
    Applicant: Nidec Corporation
    Inventors: Hsin-Nan LIN, Guo-Jhih YAN, Sheng-Chan YEN, Yu-Wei HSU, Kuo-Min WANG, Cheng-Tsung LIU
  • Publication number: 20190348874
    Abstract: A rotor is located around an outer periphery of a rotation shaft of a motor and rotates together with the rotation shaft. The rotor includes magnetic steel plates laminated in an axial direction and including a through-hole group passing therethrough in the axial direction. The through-hole group includes through-holes each including, as a central line, an imaginary line extending in the radial direction and having an arcuate shape extending from the central line to both sides and radially outward. The through-holes are arranged in the radial direction. Among the through-holes, a radius of curvature of an arcuate radially inner side surface of the radially innermost through-hole is the smallest, and/or a radius of curvature of an arcuate radially outer side surface of the radially outermost through-hole is the largest.
    Type: Application
    Filed: February 19, 2018
    Publication date: November 14, 2019
    Applicant: Nidec Corporation
    Inventors: Sheng-Chan YEN, Yu-Wei HSU, Guo-Jhih YAN, Hsin-Nan LIN, Kuo-Min WANG, Cheng-Tsung LIU