Patents by Inventor Zunmu ZHANG

Zunmu 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).

  • Patent number: 12040672
    Abstract: A motor for a rotary compressor, and a compressor and an air conditioner having the motor, are disclosed. The motor includes a stator core and a rotor core. The stator core has a through-hole in a center thereof. The stator core is provided with a plurality of circumferentially spaced stator teeth, and the number of stator teeth is M. The rotor core is rotatably disposed in the through-hole. The rotor core is provided with a plurality of circumferentially spaced rotor slots, and the number of the rotor slots is N, wherein 2?N?M?6. A cross-sectional area of the stator core is denoted as S, and a distance between two endpoints of two radially opposite curved segments of an outer edge of the cross section is denoted as L, wherein 0.93?(4*S)/(3.14*L2)?0.96.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: July 16, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Xiaohua Qiu, Dong Xiang, Zunmu Zhang, Dejin Zhang
  • Publication number: 20210104930
    Abstract: A motor for a rotary compressor, and a compressor and an air conditioner having the motor, are disclosed. The motor includes a stator core and a rotor core. The stator core has a through-hole in a center thereof. The stator core is provided with a plurality of circumferentially spaced stator teeth, and the number of stator teeth is M. The rotor core is rotatably disposed in the through-hole. The rotor core is provided with a plurality of circumferentially spaced rotor slots, and the number of the rotor slots is N, wherein 2?N?M?6. A cross-sectional area of the stator core is denoted as S, and a distance between two endpoints of two radially opposite curved segments of an outer edge of the cross section is denoted as L, wherein 0.93?4*S/3.14/L2?0.96.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 8, 2021
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Xiaohua QIU, Dong XIANG, Zunmu ZHANG, Dejin ZHANG