Patents by Inventor Seongki BAEK
Seongki BAEK 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: 11920959Abstract: The present disclosure relates to a displacement sensor. A displacement sensor according to the embodiment of the present disclosure includes a coil structure consisting of wound coil, a shield member formed to surround an outer periphery of the coil structure and a housing, wherein the housing comprises an upper side wall part surrounding an outer periphery of the shield member and a lower side wall part formed to extend from the upper side wall part, wherein an inner circumferential surface of the lower side wall part is protruded toward the inside of the housing more than an inner circumferential surface of the upper side wall part, wherein an outer circumferential surface of the lower side wall part may include a depressed region formed to be depressed into the inside of the housing by a predetermined depth.Type: GrantFiled: March 26, 2021Date of Patent: March 5, 2024Assignee: LG ELECTRONICS INC.Inventors: Seongki Baek, Kiwook Lee, Sena Jeong
-
Patent number: 11909296Abstract: A magnetic bearing is provided. The magnetic according to the present disclosure includes: a stator core disposed to surround a central axis; a plurality of bobbins coupled to the stator core; a coil wound around the bobbin; and a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins, and the positioning member has a circular shape centered on a central point.Type: GrantFiled: April 6, 2021Date of Patent: February 20, 2024Assignee: LG ELECTRONICS INC.Inventors: Sena Jeong, Kiwook Lee, Seongki Baek
-
Patent number: 11572885Abstract: A compressor is provided. The compressor according to the present disclosure includes: one or more impellers suctioning and compressing refrigerant; a motor rotating the impeller; a rotation shaft to which the impeller and the motor are connected; a gap sensor measuring a displacement change of the rotation shaft as a frequency change; a temperature compensation sensor determining a frequency compensation value according to a temperature change around the gap sensor; and a control unit calculating a displacement amount of the rotation shaft by reflecting the frequency compensation value provided by the temperature compensation sensor and the frequency change measured by the gap sensor.Type: GrantFiled: March 24, 2021Date of Patent: February 7, 2023Assignee: LG ELECTRONICS INC.Inventors: Seongki Baek, Kiwook Lee, Sena Jeong
-
Publication number: 20210320560Abstract: A magnetic bearing is provided. The magnetic according to the present disclosure includes: a stator core disposed to surround a central axis; a plurality of bobbins coupled to the stator core; a coil wound around the bobbin; and a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins, and the positioning member has a circular shape centered on a central point.Type: ApplicationFiled: April 6, 2021Publication date: October 14, 2021Applicant: LG ELECTRONICS INC.Inventors: SENA JEONG, KIWOOK LEE, SEONGKI BAEK
-
Publication number: 20210310829Abstract: The present disclosure relates to a displacement sensor. A displacement sensor according to the embodiment of the present disclosure includes a coil structure consisting of wound coil, a shield member formed to surround an outer periphery of the coil structure and a housing, wherein the housing comprises an upper side wall part surrounding an outer periphery of the shield member and a lower side wall part formed to extend from the upper side wall part, wherein an inner circumferential surface of the lower side wall part is protruded toward the inside of the housing more than an inner circumferential surface of the upper side wall part, wherein an outer circumferential surface of the lower side wall part may include a depressed region formed to be depressed into the inside of the housing by a predetermined depth.Type: ApplicationFiled: March 26, 2021Publication date: October 7, 2021Inventors: Seongki BAEK, Kiwook Lee, Sena Jeong
-
Publication number: 20210301828Abstract: A compressor is provided. The compressor according to the present disclosure includes: one or more impellers suctioning and compressing refrigerant; a motor rotating the impeller; a rotation shaft to which the impeller and the motor are connected; a gap sensor measuring a displacement change of the rotation shaft as a frequency change; a temperature compensation sensor determining a frequency compensation value according to a temperature change around the gap sensor; and a control unit calculating a displacement amount of the rotation shaft by reflecting the frequency compensation value provided by the temperature compensation sensor and the frequency change measured by the gap sensor.Type: ApplicationFiled: March 24, 2021Publication date: September 30, 2021Applicant: LG ELECTRONICS INC.Inventors: Seongki Baek, Kiwook Lee, Sena Jeong
-
Patent number: 10480922Abstract: A method of measuring a center error between bearings includes disposing both sides of a rotation shaft on inner circumferential surfaces of a magnetic bearing and a backup bearing, applying current to the magnetic bearing to produce movement of the rotation shaft, determining a contact point between the rotation shaft and the backup bearing according to movement of the rotation shaft, determining a final target value using the contact point and predetermined position information of the magnetic bearing, determining a magnetic center of the magnetic bearing through the final target value, comparing the magnetic center of the magnetic bearing and a mechanical center of the backup bearing to determine a center error, and aligning the magnetic center of the magnetic bearing and the mechanical center of the backup bearing based on the determined center error.Type: GrantFiled: June 6, 2017Date of Patent: November 19, 2019Assignees: LG Electronics Inc., The Industry & Academic Cooperation in Chungnam National UniversityInventors: Namsoo Lee, Myounggyu Noh, Soyoon Kim, Seongmin Jang, Jinhee Jeong, Seongki Baek, Sunggyu Nam
-
Publication number: 20180023938Abstract: A method of measuring a center error between bearings includes disposing both sides of a rotation shaft on inner circumferential surfaces of a magnetic bearing and a backup bearing, applying current to the magnetic bearing to produce movement of the rotation shaft, determining a contact point between the rotation shaft and the backup bearing according to movement of the rotation shaft, determining a final target value using the contact point and predetermined position information of the magnetic bearing, determining a magnetic center of the magnetic bearing through the final target value, comparing the magnetic center of the magnetic bearing and a mechanical center of the backup bearing to determine a center error, and aligning the magnetic center of the magnetic bearing and the mechanical center of the backup bearing based on the determined center error.Type: ApplicationFiled: June 6, 2017Publication date: January 25, 2018Applicants: LG ELECTRONICS INC., THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITYInventors: Namsoo LEE, Myounggyu NOH, Soyoon KIM, Seongmin JANG, Jinhee JEONG, Seongki BAEK, Sunggyu NAM