-
公开(公告)号：US11722023B2
公开(公告)日：2023-08-08
申请号：US17091175
申请日：2020-11-06
发明人： Sang Hwa Do , Nyeon Han Hong , Kyoung Bum Kim
CPC分类号： H02K1/276 , H02K15/03 , H02K2201/09
摘要： 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.
-
公开(公告)号：US20200212740A1
公开(公告)日：2020-07-02
申请号：US16566114
申请日：2019-09-10
发明人： Sang Hwa Do , Kyoung Bum Kim , Yeon Ho Kim , Jae Bum Park , Nyeon Han Hong , Hee Ra Lee
IPC分类号： H02K1/27
摘要： 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.
-
3.发明申请公开(公告)号：US20220063422A1
公开(公告)日：2022-03-03
申请号：US17143764
申请日：2021-01-07
发明人： Sang Hwa Do , Nyeon Han Hong , Myung Gyu Kim , Kyoung Bum Kim
摘要： 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.
-
公开(公告)号：US20210111602A1
公开(公告)日：2021-04-15
申请号：US16939551
申请日：2020-07-27
发明人： Hong Seok Yang , Sang Hwa Do , Ji Yeon Kim , Kyoung Bum Kim
摘要： 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.
-
5.发明授权公开(公告)号：US12054054B2
公开(公告)日：2024-08-06
申请号：US17143764
申请日：2021-01-07
发明人： Sang Hwa Do , Nyeon Han Hong , Myung Gyu Kim , Kyoung Bum Kim
CPC分类号： B60L15/2045 , H02P6/10 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429
摘要： 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.
-
公开(公告)号：US11611251B2
公开(公告)日：2023-03-21
申请号：US16939551
申请日：2020-07-27
发明人： Hong Seok Yang , Sang Hwa Do , Ji Yeon Kim , Kyoung Bum Kim
摘要： 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.
-
公开(公告)号：US11581765B2
公开(公告)日：2023-02-14
申请号：US16566114
申请日：2019-09-10
发明人： Sang Hwa Do , Kyoung Bum Kim , Yeon Ho Kim , Jae Bum Park , Nyeon Han Hong , Hee Ra Lee
摘要： 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.
-
公开(公告)号：US10833546B2
公开(公告)日：2020-11-10
申请号：US16171738
申请日：2018-10-26
发明人： Sang Hwa Do , Kyoung Bum Kim , Yeon Ho Kim , Jae Bum Park , Hee Ra Lee
摘要： 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.
-
公开(公告)号：US11011960B2
公开(公告)日：2021-05-18
申请号：US15826515
申请日：2017-11-29
发明人： Sang Hwa Do , Jae Bum Park , Kyoung Bum Kim , Yong Sung Jang
摘要： 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.
-
公开(公告)号：US20190115805A1
公开(公告)日：2019-04-18
申请号：US15826515
申请日：2017-11-29
发明人： Sang Hwa Do , Jae Bum Park , Kyoung Bum Kim , Yong Sung Jang
摘要： 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.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.018 秒)
