Patents by Inventor Chul-Hyun Nam

Chul-Hyun Nam 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 for compressor and hermetic compressor having the same
    Patent number: 8390167
    Abstract: Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil cheaper than a copper coil is used in the motor for the compressor, to thusly reduce a fabricating cost. Also, a ratio of a height of end coil of a coil to an inner diameter of a stator is appropriately designed or a ratio of an entire area of slot portions to the inner diameter of the stator is appropriately designed, and simultaneously a ratio of the inner diameter of the stator to a width of the tooth portion is appropriately designed, so as to previously prevent a deterioration of damping effect, increase in noise, lowering of efficiency, reduction of driven torque, all caused due to the use of the aluminum coil.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hae-Ok Jung, Seong-Hun Seo, Sang-Il Choi, Chul-Hyun Nam, Ki-Seok Sung
  • MOTOR FOR COMPRESSOR AND HERMETIC COMPRESSOR HAVING THE SAME
    Publication number: 20110085926
    Abstract: Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil cheaper than a copper coil is used in the motor for the compressor, to thusly reduce a fabricating cost. Also, a ratio of a height of end coil of a coil to an inner diameter of a stator is appropriately designed or a ratio of an entire area of slot portions to the inner diameter of the stator is appropriately designed, and simultaneously a ratio of the inner diameter of the stator to a width of the tooth portion is appropriately designed, so as to previously prevent a deterioration of damping effect, increase in noise, lowering of efficiency, reduction of driven torque, all caused due to the use of the aluminum coil.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 14, 2011
    Inventors: Hae-Ok Jung, Seong-Hun Seo, Sang-Il Choi, Chul-Hyun Nam, Ki-Seok Sung