Patents by Inventor Chang Feng Li

Chang Feng Li 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).

  • Patent number: 11465212
    Abstract: Provided are an electric motor, a laminated iron core, and a manufacturing method. In. an embodiment, the method includes S1: introducing inert gas into an additive manufacturing printing apparatus, pouring silicon steel metal particles into a fanning cylinder of the apparatus, and performing laser scanning on the silicon steel metal particles to gradually melt the silicon steel metal particles into at least one silicon steel metal layer; and S2: continuing to pour silicon steel metal particles into the forming cylinder, and stopping performing laser scanning on the silicon steel metal particles or reducing the laser power executing the laser scanning, such that the silicon steel metal particles do not entirely melt and form an insulating layer. Execution of steps S1 and S2 is alternated until a laminated iron core having a plurality of alternating silicon steel metal layers and insulating layers is formed.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: October 11, 2022
    Assignee: SIEMENS LTD., CHINA
    Inventors: Chang Peng Li, Xu Hua, Kateryna Svynarenko, Guo Feng Chen
  • Publication number: 20220250151
    Abstract: Provided are an electric motor, a laminated iron core, and a manufacturing method. In an embodiment, the method includes S1: introducing inert gas into an additive manufacturing printing apparatus, pouring silicon steel metal particles into a forming cylinder of the apparatus, and performing laser scanning on the silicon steel metal particles to gradually melt the silicon steel metal particles into at least one silicon steel metal layer; and S2: continuing to pour silicon steel metal particles into the forming cylinder, and stopping performing laser scanning on the silicon steel metal particles or reducing the laser power executing the laser scanning, such that the silicon steel metal particles do not entirely melt and form an insulating layer. Execution of steps S1 and S2 is alternated until a laminated iron core having a plurality of alternating silicon steel metal layers and insulating layers is formed.
    Type: Application
    Filed: May 24, 2019
    Publication date: August 11, 2022
    Applicant: Siemens Ltd., China
    Inventors: Chang Peng Li, Xu Hua, Kateryna Svynarenko, Guo Feng Chen
  • Publication number: 20220231548
    Abstract: A manufacturing method is performed in an additive manufacturing printing apparatus. An embodiment of the manufacturing method includes: S1—feeding inert gas into the additive manufacturing printing apparatus, and performing laser scanning on silicon steel metal particles to start to melt the silicon steel metal particles from bottom to top layer by layer into a silicon steel metal layer; S2—feeding treatment gas into the additive manufacturing printing apparatus, performing laser scanning on the silicon steel particles again to enable the treatment gas to react with the molten silicon steel metal particles to finally form an insulating nitride layer, and alternately performing S1 and S2 until the laminated iron core of a structure having a plurality of alternate silicon steel metal layers and insulating nitride layers is formed. An embodiment of the present invention may manufacture a customized laminated iron core with a complex shape and good performance.
    Type: Application
    Filed: April 30, 2019
    Publication date: July 21, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventors: Chang Peng LI, Qing Qing ZHANG, Guo Feng CHEN, Kateryna SVYNARENKO
  • Publication number: 20140355519
    Abstract: The invention discloses a method and system for sharing wireless traffic, the method comprising: receiving a request for sharing the wireless traffic from a requesting mobile device, the request containing a list of unique numbers of other mobile devices within a certain range of distance from the requesting mobile device; selecting, for the requesting mobile device, at least one mobile device for sharing the wireless traffic from the received list; and sending, to the requesting mobile device, the unique number of the at least one selected mobile device and its connection channel password. By virtue of the method and apparatus according to the embodiments of the present invention, traffic can be shared among mobile devices' users without participation of mobile operators, thereby saving money for the users.
    Type: Application
    Filed: April 23, 2014
    Publication date: December 4, 2014
    Applicant: International Business Machines Corporation
    Inventors: Chang Feng Li, Xing Xing Shen, Yun Wang, Ding Guo Wang, Yu Jie Zhao