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公开(公告)号：US11722023B2
公开(公告)日：2023-08-08
申请号：US17091175
申请日：2020-11-06
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Sang Hwa Do , Nyeon Han Hong , Kyoung Bum Kim
CPC classification number: H02K1/276 , H02K15/03 , H02K2201/09
Abstract: 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.
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2.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
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Sang Hwa Do , Nyeon Han Hong , Myung Gyu Kim , Kyoung Bum Kim
Abstract: 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.
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公开(公告)号：US20200212740A1
公开(公告)日：2020-07-02
申请号：US16566114
申请日：2019-09-10
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Sang Hwa Do , Kyoung Bum Kim , Yeon Ho Kim , Jae Bum Park , Nyeon Han Hong , Hee Ra Lee
IPC: H02K1/27
Abstract: 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.
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Patent Agency Ranking
4.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
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Sang Hwa Do , Nyeon Han Hong , Myung Gyu Kim , Kyoung Bum Kim
CPC classification number: B60L15/2045 , H02P6/10 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429
Abstract: 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.
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公开(公告)号：US11581765B2
公开(公告)日：2023-02-14
申请号：US16566114
申请日：2019-09-10
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Sang Hwa Do , Kyoung Bum Kim , Yeon Ho Kim , Jae Bum Park , Nyeon Han Hong , Hee Ra Lee
Abstract: 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.
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公开(公告)号：US20230223827A1
公开(公告)日：2023-07-13
申请号：US17879553
申请日：2022-08-02
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Sang Hwa Do , Nyeon Han Hong , Kyoung Bum Kim , Yong Sung Jang
IPC: H02K15/12 , H02K15/03 , H02K1/28 , H02K1/2791
CPC classification number: H02K15/12 , H02K15/03 , H02K1/28 , H02K1/2791
Abstract: 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.
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公开(公告)号：US20220344082A1
公开(公告)日：2022-10-27
申请号：US17451721
申请日：2021-10-21
Applicant: Hyundai Motor Company , Kia Corporation , Star Group Ind. Co., Ltd.
Inventor： Seok Jin Ha , Sang Hwa Do , Kyoung Bum Kim , Nyeon Han Hong , Koon Seung Kong , Dong Hwan Kim , Sang Hyub Lee
Abstract: 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.
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公开(公告)号：US20230318374A1
公开(公告)日：2023-10-05
申请号：US18206272
申请日：2023-06-06
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Sang Hwa Do , Nyeon Han Hong , Kyoung Bum Kim
CPC classification number: H02K1/276 , H02K15/03 , H02K2201/09
Abstract: 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. In particular, the pressing portion is provided between the internal hole and the magnet accommodation portion
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