Patents by Inventor Che-Ming Cheng

Che-Ming Cheng 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).

  • Motor rotor cooling system
    Patent number: 12170476
    Abstract: A cooling system includes a rotor structure, a first end plate and a second end plate. The rotor structure includes a silicon steel, magnets and a shaft. The first end plate is at a first end of the silicon steel, and the first end plate is recessed with a first-shaped oil groove and a second-shaped oil groove. The second end plate is at a second end of the silicon steel, and the second end plate is recessed with a first-shaped oil groove and a second-shaped oil groove. The first-shaped oil groove of the first end plate is connected to the second-shaped oil groove of the second end plate to form a first cooling path. The second-shaped oil groove of the first end plate is connected to the first-shaped oil groove of the second end plate to form a second cooling path.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: December 17, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yi-Ming Wu, Shian-Min Tsai, Mu-Hsien Chou, Che-Ming Cheng
  • MOTOR ROTOR COOLING SYSTEM
    Publication number: 20230179065
    Abstract: A cooling system includes a rotor structure, a first end plate and a second end plate. The rotor structure includes a silicon steel, magnets and a shaft. The first end plate is at a first end of the silicon steel, and the first end plate is recessed with a first-shaped oil groove and a second-shaped oil groove. The second end plate is at a second end of the silicon steel, and the second end plate is recessed with a first-shaped oil groove and a second-shaped oil groove. The first-shaped oil groove of the first end plate is connected to the second-shaped oil groove of the second end plate to form a first cooling path. The second-shaped oil groove of the first end plate is connected to the first-shaped oil groove of the second end plate to form a second cooling path.
    Type: Application
    Filed: June 21, 2022
    Publication date: June 8, 2023
    Inventors: Yi-Ming WU, Shian-Min TSAI, Mu-Hsien CHOU, Che-Ming CHENG
  • Gear-skipping prevention mechanism
    Patent number: 11585410
    Abstract: A gear-skipping prevention mechanism including a first gear, a second gear, and a positioning member is provided. The first gear is sleeved on an axle. The second gear meshes with the first gear and has a first guiding groove. The positioning member includes at least one body and at least one engaging portion. Each of the at least one body has a sleeving hole. The sleeving hole is sleeved on the axle, and each of the at least one engaging portion is slidably disposed in the first guiding groove to limit a relative position between the first gear and the second gear.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: February 21, 2023
    Assignee: Coretronic Corporation
    Inventors: Che-Ming Cheng, Chang-Yung Chen, Yi-Hsiung Peng
  • GEAR-SKIPPING PREVENTION MECHANISM
    Publication number: 20220120335
    Abstract: A gear-skipping prevention mechanism including a first gear, a second gear, and a positioning member is provided. The first gear is sleeved on an axle. The second gear meshes with the first gear and has a first guiding groove. The positioning member includes at least one body and at least one engaging portion. Each of the at least one body has a sleeving hole. The sleeving hole is sleeved on the axle, and each of the at least one engaging portion is slidably disposed in the first guiding groove to limit a relative position between the first gear and the second gear.
    Type: Application
    Filed: September 9, 2021
    Publication date: April 21, 2022
    Applicant: Coretronic Corporation
    Inventors: Che-Ming Cheng, Chang-Yung Chen, Yi-Hsiung Peng