Patents by Inventor Pingman Zhang

Pingman Zhang 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).

  • Rotor and motor having the same
    Patent number: 11056958
    Abstract: A rotor of an electric motor includes a rotating shaft, a rotor core and a commutator fixed to the rotating shaft, and a first sleeve, a second sleeve and a third sleeve arranged around the rotating shaft. The first sleeve is located on a side of the rotor core away from the commutator and abuts against the rotor core, the second sleeve is located between the rotor core and the commutator, and the third sleeve is located on a side of the commutator away from the rotor core.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 6, 2021
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Jingxin Shi, Sijun Zhao, Luyan Bi, Pingman Zhang, Xionghui Liu, Lang Dai, Cong Lv, Feifei Huang, He Chi, Baoqiang Cheng, Seungpun Ho, Dawei Zhou, Zhijun Li, Zhiyu Chen
  • Electric motor and brush thereof
    Patent number: 10559935
    Abstract: A brush used to contact with a commutator, includes a brush body which includes two opposite axial end faces and a protruding portion projecting from the brush body toward the commutator. The protruding portion includes a first surface, a second surface and at least two teeth. The first surface and the second surface are respectively adjacent to the two axial end faces. Angles formed between the first surface and the second surface and corresponding adjacent axial end faces are obtuse. The teeth is located between the first surface and the second surface, and extends generally along a circumferential direction of the commutator. The ratio of a total width of the at least two teeth in an axial direction of the brush to an axial height of the brush body is in the range of 0.25-0.75. An electric motor including the brush is also provided.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 11, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Jingxin Shi, Sijun Zhao, Luyan Bi, Pingman Zhang, Lang Dai, Yunchang Yu, Guiqing Liao, Xionghui Liu, Zhiyu Chen, Cong Lv, He Chi
  • ROTOR AND MOTOR HAVING THE SAME
    Publication number: 20190296625
    Abstract: A rotor of an electric motor includes a rotating shaft, a rotor core and a commutator fixed to the rotating shaft, and a first sleeve, a second sleeve and a third sleeve arranged around the rotating shaft. The first sleeve is located on a side of the rotor core away from the commutator and abuts against the rotor core, the second sleeve is located between the rotor core and the commutator, and the third sleeve is located on a side of the commutator away from the rotor core.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Inventors: Jingxin SHI, Sijun ZHAO, Luyan BI, Pingman ZHANG, Xionghui LIU, Lang DAI, Cong LV, Feifei HUANG, He CHI, Baoqiang CHENG, Seungpun HO, Dawei ZHOU, Zhijun LI, Zhiyu CHEN
  • ELECTRIC MOTOR AND BRUSH THEREOF
    Publication number: 20180166843
    Abstract: A brush used to contact with a commutator, includes a brush body which includes two opposite axial end faces and a protruding portion projecting from the brush body toward the commutator. The protruding portion includes a first surface, a second surface and at least two teeth. The first surface and the second surface are respectively adjacent to the two axial end faces. Angles formed between the first surface and the second surface and corresponding adjacent axial end faces are obtuse. The teeth is located between the first surface and the second surface, and extends generally along a circumferential direction of the commutator. The ratio of a total width of the at least two teeth in an axial direction of the brush to an axial height of the brush body is in the range of 0.25-0.75. An electric motor including the brush is also provided.
    Type: Application
    Filed: November 21, 2017
    Publication date: June 14, 2018
    Inventors: Jingxin Shi, Sijun Zhao, Luyan Bi, Pingman Zhang, Lang Dai, Yunchang Yu, Guiqing Liao, Xionghui Liu, Zhiyu Chen, Cong Lv, He Chi