Patents by Inventor Kyoung Bum Kim
Kyoung Bum Kim 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).
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Publication number: 20230318374Abstract: A method of fixing a permanent magnet in a rotor core includes: forming a magnet accommodation portion into which a permanent magnet is to be inserted and an internal hole defined in an area adjacent to one end of the magnet accommodation portion; inserting the permanent magnet into the magnet accommodation portion; performing a caulking process by inserting a bar into the internal hole; and pressing a pressing portion toward the permanent magnet using the bar.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Sang Hwa Do, Nyeon Han Hong, Kyoung Bum Kim
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Patent number: 11722023Abstract: A structure for fixing a permanent magnet in a rotor core. The structure includes a magnet accommodation portion into which a permanent magnet is to be inserted, an internal hole formed in an area adjacent to one end of the magnet accommodation portion, a pressing portion provided between the magnet accommodation portion and the internal hole. The pressing portion forms a convex shape toward the permanent magnet to be in contact with the permanent magnet.Type: GrantFiled: November 6, 2020Date of Patent: August 8, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sang Hwa Do, Nyeon Han Hong, Kyoung Bum Kim
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Publication number: 20230223827Abstract: A motor core assembly and a manufacturing method for the motor core assembly include a permanent magnet inside a motor that may be recovered, in its original state without damage and at a low cost, from a motor to be disposed of together with a device when the device to which the motor is applied is disposed of in a state in which the permanent magnet wrapped with an injection part is inserted into a rotor core. Accordingly, the number of manufacturing processes and the cost may be reduced.Type: ApplicationFiled: August 2, 2022Publication date: July 13, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Sang Hwa Do, Nyeon Han Hong, Kyoung Bum Kim, Yong Sung Jang
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Patent number: 11611251Abstract: The present disclosure provides a motor having an asymmetric rotor core that can more effectively improve operation efficiency of a motor and improve NVH performance in correspondence to the tendency of high power and high efficiency of motors by asymmetrically forming a first slot and a second slot for inserting permanent magnets of the rotor core, arranging a first permanent magnet and a second permanent magnet at different embedment angles, and forming a separation wall inclined at a predetermined angle and having a uniform thickness between the first slot and the second slot.Type: GrantFiled: July 27, 2020Date of Patent: March 21, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hong Seok Yang, Sang Hwa Do, Ji Yeon Kim, Kyoung Bum Kim
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Patent number: 11581765Abstract: An interior permanent magnet electric motor forms a buried angle of a left permanent magnet of a slot part of a rotor differently from a buried angle of a right permanent magnet of the slot part of the rotor, so as to reduce torque ripple while sufficiently maintaining motor efficiency as compared to an I-type rotor to effectively improve noise, vibration, and harshness performance.Type: GrantFiled: September 10, 2019Date of Patent: February 14, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hwa Do, Kyoung Bum Kim, Yeon Ho Kim, Jae Bum Park, Nyeon Han Hong, Hee Ra Lee
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Publication number: 20220344082Abstract: Disclosed is a segmented magnet which may adjust the application direction of a heavy rare earth element for grain boundary diffusion depending on the magnetization direction of the segmented magnet so as to simplify the manufacturing process of the segmented magnet while reducing eddy current loss, and a method for manufacturing the same. The method includes preparing a plurality of permanent magnet parent bodies having a constant magnetization direction, diffusing a diffusion material into the prepared permanent magnet parent bodies via a pair of planes thereof opposite each other and parallel to the magnetization direction along grain boundaries so as to form a pair of diffusing surfaces, preparing a permanent magnet assembly by stacking the permanent magnet parent bodies in a line such that the diffusing surfaces thereof face each other, and segmenting the permanent magnet assembly into a plurality of pieces along planes perpendicular to the magnetization direction.Type: ApplicationFiled: October 21, 2021Publication date: October 27, 2022Inventors: Seok Jin Ha, Sang Hwa Do, Kyoung Bum Kim, Nyeon Han Hong, Koon Seung Kong, Dong Hwan Kim, Sang Hyub Lee
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Patent number: 11320003Abstract: A cooling structure for a hybrid powertrain apparatus of a vehicle may include: a first rotor shaft coaxially connected to an engine output shaft and connected to a rotor of a first motor; an engine clutch shaft coaxially connected to the first rotor shaft not to rotate and connected to an engine clutch; a transmission input shaft mounted coaxially with the engine clutch shaft not to rotate by a rotor of a second motor connected to the engine clutch; and a cooling channel formed in the transmission input shaft to be able to supply oil for simultaneously cooling the first motor, the second motor, and the engine clutch.Type: GrantFiled: February 1, 2021Date of Patent: May 3, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hong Seok Yang, Kyoung Bum Kim, Hee Ra Lee, Jae Won Ha
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Publication number: 20220065309Abstract: A cooling structure for a hybrid powertrain apparatus of a vehicle may include: a first rotor shaft coaxially connected to an engine output shaft and connected to a rotor of a first motor; an engine clutch shaft coaxially connected to the first rotor shaft not to rotate and connected to an engine clutch; a transmission input shaft mounted coaxially with the engine clutch shaft not to rotate by a rotor of a second motor connected to the engine clutch; and a cooling channel formed in the transmission input shaft to be able to supply oil for simultaneously cooling the first motor, the second motor, and the engine clutch.Type: ApplicationFiled: February 1, 2021Publication date: March 3, 2022Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Hong Seok YANG, Kyoung Bum Kim, Hee Ra Lee, Jae Won Ha
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Publication number: 20220063422Abstract: A motor noise reduction control apparatus of an eco-friendly vehicle includes: a driving mode selector for selecting one of a high fuel economy driving mode and a low-noise driving mode; and a motor controller configured to generate a current command for motor drive using a maximum motor efficiency control application current map when the high fuel economy driving mode is selected, and to generate a current command for motor drive using a minimum torque ripple control application current map when the low-noise driving mode is selected.Type: ApplicationFiled: January 7, 2021Publication date: March 3, 2022Inventors: Sang Hwa Do, Nyeon Han Hong, Myung Gyu Kim, Kyoung Bum Kim
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Patent number: 11194752Abstract: A memory card includes a card substrate on which a controller and a memory device are mounted, and a card enclosure that accommodates the card substrate and exposes terminals for electrical connection to an external device. The controller is operable in a universal flash storage (UFS) mode and in a first sub-mode other than the UFS mode. The terminals that are exposed include a UFS terminal group according to a UFS standard, and a first sub-mode terminal group. The UFS terminal group includes first row terminals arranged adjacent to an insertion side edge of the memory card and second row terminals arranged apart from the insertion side edge such that the first row terminals are provided between the second row terminals and the insertion side edge. The first sub-mode terminal group is adjacent to the first row terminals.Type: GrantFiled: August 14, 2020Date of Patent: December 7, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-nam Koh, Kyoung-bum Kim, In-jae Lee, Jae-heon Jeong
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Publication number: 20210351644Abstract: A structure for fixing a permanent magnet in a rotor core. The structure includes a magnet accommodation portion into which a permanent magnet is to be inserted, an internal hole formed in an area adjacent to one end of the magnet accommodation portion, a pressing portion provided between the magnet accommodation portion and the internal hole. The pressing portion forms a convex shape toward the permanent magnet to be in contact with the permanent magnet.Type: ApplicationFiled: November 6, 2020Publication date: November 11, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sang Hwa DO, Nyeon Han HONG, Kyoung Bum KIM
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Patent number: 11011960Abstract: A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction, to immerse lower coil portions of a stator and a rotor in cooling oil, thereby improving the cooling effect beyond that of a conventional configuration, in which lower coil portions are partially immersed, and consequently decreasing the capacity of an oil pump. A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction and has therein a flow passage, through which cooling oil moves up from the region below the rotor and is sprayed to the region above the rotor by centrifugal force generated by rotation of the rotor, thereby enhancing the motor-cooling effect, decreasing the frictional loss of the rotor due to the cooling oil, and consequently improving the operational efficiency of the motor.Type: GrantFiled: November 29, 2017Date of Patent: May 18, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hwa Do, Jae Bum Park, Kyoung Bum Kim, Yong Sung Jang
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Publication number: 20210111602Abstract: The present disclosure provides a motor having an asymmetric rotor core that can more effectively improve operation efficiency of a motor and improve NVH performance in correspondence to the tendency of high power and high efficiency of motors by asymmetrically forming a first slot and a second slot for inserting permanent magnets of the rotor core, arranging a first permanent magnet and a second permanent magnet at different embedment angles, and forming a separation wall inclined at a predetermined angle and having a uniform thickness between the first slot and the second slot.Type: ApplicationFiled: July 27, 2020Publication date: April 15, 2021Inventors: Hong Seok Yang, Sang Hwa Do, Ji Yeon Kim, Kyoung Bum Kim
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Publication number: 20200371983Abstract: A memory card includes a card substrate on which a controller and a memory device are mounted, and a card enclosure that accommodates the card substrate and exposes terminals for electrical connection to an external device. The controller is operable in a universal flash storage (UFS) mode and in a first sub-mode other than the UFS mode. The terminals that are exposed include a UFS terminal group according to a UFS standard, and a first sub-mode terminal group. The UFS terminal group includes first row terminals arranged adjacent to an insertion side edge of the memory card and second row terminals arranged apart from the insertion side edge such that the first row terminals are provided between the second row terminals and the insertion side edge. The first sub-mode terminal group is adjacent to the first row terminals.Type: ApplicationFiled: August 14, 2020Publication date: November 26, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-nam Koh, Kyoung-bum Kim, In-jae Lee, Jae-heon Jeong
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Patent number: 10833546Abstract: An internal permanent magnet motor may include a stator of a annular shape, and a rotor coaxially disposed inside the stator by positioned between a gap between the rotor and the stator and having a plurality of permanent magnets embedded therein and spaced from each other in a circumferential direction along a circumference of the rotor, wherein the stator has a plurality of first notches formed on an internal circumferential surface facing the rotor in a height direction perpendicular to the circumferential direction thereof, and the rotor has a plurality of second notches formed on an external circumferential surface facing the stator in a height direction perpendicular to the circumferential direction thereof.Type: GrantFiled: October 26, 2018Date of Patent: November 10, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hwa Do, Kyoung Bum Kim, Yeon Ho Kim, Jae Bum Park, Hee Ra Lee
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Patent number: 10769091Abstract: A memory card includes a card substrate on which a controller and a memory device are mounted, and a card enclosure that accommodates the card substrate and exposes terminals capable of being electrically connected to an external device, wherein the controller is operable in a universal flash storage (UFS) mode and in a first sub-mode other than the UFS mode.Type: GrantFiled: January 3, 2019Date of Patent: September 8, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-nam Koh, Kyoung-bum Kim, In-jae Lee, Jae-heon Jeong
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Publication number: 20200212740Abstract: An interior permanent magnet electric motor forms a buried angle of a left permanent magnet of a slot part of a rotor differently from a buried angle of a right permanent magnet of the slot part of the rotor, so as to reduce torque ripple while sufficiently maintaining motor efficiency as compared to an I-type rotor to effectively improve noise, vibration, and harshness performance.Type: ApplicationFiled: September 10, 2019Publication date: July 2, 2020Inventors: Sang Hwa Do, Kyoung Bum Kim, Yeon Ho Kim, Jae Bum Park, Nyeon Han Hong, Hee Ra Lee
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Publication number: 20190319503Abstract: An internal permanent magnet motor may include a stator of a annular shape, and a rotor coaxially disposed inside the stator by positioned between a gap between the rotor and the stator and having a plurality of permanent magnets embedded therein and spaced from each other in a circumferential direction along a circumference of the rotor, wherein the stator has a plurality of first notches formed on an internal circumferential surface facing the rotor in a height direction perpendicular to the circumferential direction thereof, and the rotor has a plurality of second notches formed on an external circumferential surface facing the stator in a height direction perpendicular to the circumferential direction thereof.Type: ApplicationFiled: October 26, 2018Publication date: October 17, 2019Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hwa DO, Kyoung Bum KIM, Yeon Ho KIM, Jae Bum PARK, Hee Ra LEE
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Publication number: 20190205277Abstract: A memory card includes a card substrate on which a controller and a memory device are mounted, and a card enclosure that accommodates the card substrate and exposes terminals capable of being electrically connected to an external device, wherein the controller is operable in a universal flash storage (UFS) mode and in a first sub-mode other than the UFS mode.Type: ApplicationFiled: January 3, 2019Publication date: July 4, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-nam KOH, Kyoung-bum Kim, In-jae Lee, Jae-heon Jeong
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Publication number: 20190115805Abstract: A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction, to immerse lower coil portions of a stator and a rotor in cooling oil, thereby improving the cooling effect beyond that of a conventional configuration, in which lower coil portions are partially immersed, and consequently decreasing the capacity of an oil pump. A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction and has therein a flow passage, through which cooling oil moves up from the region below the rotor and is sprayed to the region above the rotor by centrifugal force generated by rotation of the rotor, thereby enhancing the motor-cooling effect, decreasing the frictional loss of the rotor due to the cooling oil, and consequently improving the operational efficiency of the motor.Type: ApplicationFiled: November 29, 2017Publication date: April 18, 2019Inventors: Sang Hwa Do, Jae Bum Park, Kyoung Bum Kim, Yong Sung Jang