Patents by Inventor Eunji Hwang

Eunji Hwang 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).

  • Publication number: 20220010811
    Abstract: A fan motor includes a housing, a rotating shaft that is rotatably disposed in the housing and extends through the housing, an impeller rotatably disposed at the rotating shaft, a first vane disposed adjacent to the impeller and configured to guide a flow of air generated by the impeller, a rotor disposed at the rotating shaft and spaced apart from the impeller in an axial direction of the rotating shaft, a stator that is disposed in the housing and surrounds the rotor, the stator and the rotor defining an air gap therebetween, and a second vane coupled to the stator and disposed downstream relative to the first vane in a flow direction of the flow of air. The second vane is in contact with at least a part of an inner surface of the housing.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Inventors: Sunggi KIM, Byungjik KIM, Eunji HWANG, Jisu HWANG
  • Publication number: 20210348616
    Abstract: A fan motor includes a shroud, a rotating shaft that is disposed inside the shroud and includes a first support portion, a second support portion, and a permanent magnet mounting portion disposed between the first support portion and the second support portion, an impeller disposed at a first end portion of the rotating shaft, an air bearing that is disposed adjacent to the impeller and defines an air gap facing the first support portion, a permanent magnet disposed at the permanent magnet mounting portion between the first end portion and a second end portion of the rotating shaft opposite to the first end portion in the axial direction, and a ball bearing disposed at the second end portion of the rotating shaft and configured to rotatably support the second support portion.
    Type: Application
    Filed: March 19, 2021
    Publication date: November 11, 2021
    Inventors: Eunji HWANG, Byungjik KIM, Sunggi KIM, Jisu HWANG
  • Patent number: 11025127
    Abstract: A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: June 1, 2021
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban
  • Patent number: 10916990
    Abstract: A motor includes a motor body, a bracket installed in the motor body, a rotating shaft, a bearing accommodated inside the bracket and supporting the rotating shaft, and a bearing supporter defining a plurality of pores. The bracket and the bearing define a bearing heat dissipation flow path between an outer surface of the bearing and an inner surface of the bracket, and the bearing heat dissipation flow path is configured to pass air therethrough. The bearing supporter is disposed in the bearing heat dissipation flow path, and the bracket defines a bracket through-hole configured to discharge air that has passed through the plurality of pores of the bearing supporter.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 9, 2021
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Byungjik Kim
  • Patent number: 10903714
    Abstract: A motor includes a motor housing, a rotating shaft assembly that includes a rotor mounted to the rotating shaft, an impeller connected to the rotating shaft, and an impeller cover that surrounds an outer circumference of the impeller. The impeller cover defines an air inlet. The motor further includes a stator that is located within the motor housing and that surrounds at least a portion of the rotor, a bearing mounted to the rotating shaft, and an elastic mesh having a plurality of pores. The elastic mesh is disposed between the motor housing and the bearing.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 26, 2021
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban
  • Publication number: 20200400148
    Abstract: A motor assembly includes a rolling bearing installed on a rotation shaft between an impeller and a rotor to support a first support of the rotation shaft, and a motor housing having a stator. The motor housing has a gas bearing bracket for accommodating a second support of the rotation shaft disposed at a side opposite to the first support with respect to the rotor. The motor assembly includes a gas bearing assembly in the gas bearing bracket to support rotation of the second support of the rotation shaft. The gas bearing assembly includes a gas bearing for surrounding the second support. The gas bearing is spaced apart from the second support of the rotation shaft to define a gap therebetween when the rotation shaft rotates. The gas bearing assembly includes an elastic member interposed between the gas bearing bracket and the gas bearing to elastically support the gas bearing.
    Type: Application
    Filed: March 17, 2020
    Publication date: December 24, 2020
    Inventors: Sunggi KIM, Byungjik KIM, Eunji HWANG, Jisu HWANG
  • Publication number: 20200403488
    Abstract: A motor assembly includes a first bearing installed on a rotating shaft adjacent to an impeller to support a first support part of the rotating shaft, a second bearing installed on the rotating shaft adjacent to the rotor to support a second support part of the rotating shaft, a bearing bracket receiving the first and second bearings therein, an elastic member inserted between the first bearing and the bearing bracket or between the second bearing and the bearing bracket to press either the first bearing or the second bearing to get closer to each other, and a separation preventing member installed on the bearing bracket to fix the first bearing, the second bearing and the elastic member to an inner space of the bearing bracket such that at least one portion of the separation preventing member overlaps with one of the first bearing, the second bearing and the elastic member.
    Type: Application
    Filed: March 17, 2020
    Publication date: December 24, 2020
    Inventors: Sunggi KIM, Byungjik KIM, Eunji HWANG, Jisu HWANG
  • Publication number: 20200392964
    Abstract: An embodiment of the present disclosure discloses a motor assembly including a rotation shaft, an impeller including a hub fastened to the rotation shaft, and a plurality of blades protruding outward from an outer surface of the hub, an inlet body for surrounding an outer circumference of the impeller, and a coating layer coated on an inner surface of the inlet body, wherein at least a portion of the coating layer is ground in a form of powder by friction with the plurality of blades during rotation of the impeller.
    Type: Application
    Filed: March 12, 2020
    Publication date: December 17, 2020
    Inventors: Eunji HWANG, Byungjik KIM, Sunggi KIM, Jisu HWANG
  • Publication number: 20200392989
    Abstract: A motor assembly includes a rotation shaft, an impeller installed at one side of the rotation shaft, a rotor mounted at the other side of the rotation shaft to be spaced apart from the impeller along an axial direction of the rotation shaft, a stator surrounding an outer face of the rotor such that the stator is spaced apart from the rotor along a radial direction of the rotation shaft, a first bearing installed at the one side of the rotation shaft between the impeller and the rotor, and a second bearing installed at the other side of the rotation shaft, opposite to the first bearing with respect to the rotor, and disposed to be axially closer to the other end of the rotation shaft than the rotor. An outer diameter of the first bearing is larger than an outer diameter of the second bearing.
    Type: Application
    Filed: March 17, 2020
    Publication date: December 17, 2020
    Inventors: Sunggi KIM, Byungjik KIM, Eunji HWANG, Jisu HWANG
  • Publication number: 20200373807
    Abstract: A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Inventors: Eunji HWANG, Sunggi KIM, Hangjin BAN
  • Patent number: 10801547
    Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 13, 2020
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban, Donghan Kim, Byungjik Kim
  • Patent number: 10770948
    Abstract: A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: September 8, 2020
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban
  • Publication number: 20200248702
    Abstract: The present embodiment comprises: a rotary shaft; a rotor mounted on the rotary shaft; a stator for encompassing the outer circumference of the rotor; an impeller mounted on the rotary shaft so as to be spaced from the rotor; a bearing housing having a through-hole through which the rotary shaft passes; a rolling bearing disposed in the bearing housing and coupled to the rotary shaft; and a gas bearing disposed in the bearing housing so as to be spaced from the rolling bearing in an axial direction, and facing the outer circumference of the rotary shaft.
    Type: Application
    Filed: October 22, 2018
    Publication date: August 6, 2020
    Inventors: Sunggi KIM, Byungjik KIM, Eunji HWANG, Donghan KIM, Changlae KIM
  • Publication number: 20190178289
    Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: Eunji HWANG, Sunggi KIM, Hangjin BAN, Donghan KIM, Byungjik KIM
  • Patent number: 10247237
    Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 2, 2019
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban, Donghan Kim, Byungjik Kim
  • Publication number: 20180073557
    Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Inventors: Eunji HWANG, Sunggi KIM, Hangjin BAN, Donghan KIM, Byungjik KIM
  • Publication number: 20180076683
    Abstract: A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Inventors: Eunji HWANG, Sunggi KIM, Hangjin BAN
  • Publication number: 20180076682
    Abstract: A motor includes a motor body, a bracket installed in the motor body, a rotating shaft, a bearing accommodated inside the bracket and supporting the rotating shaft, and a bearing supporter defining a plurality of pores. The bracket and the bearing define a bearing heat dissipation flow path between an outer surface of the bearing and an inner surface of the bracket, and the bearing heat dissipation flow path is configured to pass air therethrough. The bearing supporter is disposed in the bearing heat dissipation flow path, and the bracket defines a bracket through-hole configured to discharge air that has passed through the plurality of pores of the bearing supporter.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Inventors: Eunji HWANG, Sunggi KIM, Byungjik KIM
  • Publication number: 20180076684
    Abstract: A motor includes a motor housing, a rotating shaft assembly that includes a rotor mounted to the rotating shaft, an impeller connected to the rotating shaft, and an impeller cover that surrounds an outer circumference of the impeller. The impeller cover defines an air inlet. The motor further includes a stator that is located within the motor housing and that surrounds at least a portion of the rotor, a bearing mounted to the rotating shaft, and an elastic mesh having a plurality of pores. The elastic mesh is disposed between the motor housing and the bearing.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 15, 2018
    Inventors: Eunji HWANG, Sunggi KIM, Hangjin BAN
  • Patent number: 9897143
    Abstract: A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: February 20, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Junchul Oh, Sungyong Ahn, Eunji Hwang, Byeongchul Lee, Seheon Choi