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公开(公告)号：US12009724B2
公开(公告)日：2024-06-11
申请号：US17420141
申请日：2020-01-06
Applicant: NIDEC CORPORATION
Inventor： Yusuke Makino , Daisuke Ogasawara
Abstract: A motor includes a rotor, a stator, and a support member. The rotor includes a rotor magnet, a magnet holding portion, and spoke portions. The stator includes a plurality of coils and a stator core. The support member includes a stator holding portion and a mount portion. The mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion. The slits each have openings in an outer circumferential end and an upper surface of the mount portion. The openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in the circumferential direction when viewed in the axial direction.
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公开(公告)号：US11108298B2
公开(公告)日：2021-08-31
申请号：US16321510
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Yusuke Makino
IPC: H02K11/00 , H02K5/173 , H02K21/22 , H02K5/22 , H02K7/14 , H02K5/20 , H02K11/215 , H02K11/33 , F16C25/06 , F16C35/063 , H02K1/28 , H02K9/06
Abstract: A motor includes a shaft, a bearing, an armature, a bracket, and a covered cylindrical rotor including a rotor lid portion, a rotor side wall portion, and a rotor magnet. The bracket includes a cylindrical portion. The bearing includes lower and upper ball bearings. The shaft includes a shaft main body and a nut. In the lower ball bearing, a lower surface of an inner ring is in contact with an upper surface of the nut and an upper surface of an outer ring is vertically supported by the cylindrical portion. In the upper ball bearing, an inner ring is vertically fixed with respect to the shaft main body and a lower surface of an outer ring is vertically supported by the cylindrical portion.
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公开(公告)号：US10673307B2
公开(公告)日：2020-06-02
申请号：US16055208
申请日：2018-08-06
Applicant: Nidec Corporation
Inventor： Yusuke Makino , Satoshi Kajikawa
IPC: H02K3/50 , H02K9/06 , H02K5/10 , H02K5/173 , H02K7/08 , H02K5/20 , H02K15/14 , H02K15/16 , H02K1/27 , H02K1/28 , H02K5/16 , H02K5/22 , H01R25/16
Abstract: A motor includes a shaft with a central axis along an up and down direction as a center, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft at an upper side of the rotor main body, an armature facing the rotor main body in a radial direction, a bus bar electrically connecting the armature to an external power supply, a bus bar holding portion that holds the bus bar, and a housing that accommodates the rotor main body, the rotor fan, the armature, the bus bar, and the bus bar holding portion therein. The housing includes a first opening positioned above the armature and a second opening below the armature in the up and down direction. The bus bar holding portion is disposed outward the rotor fan in the radial direction.
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公开(公告)号：US10756591B2
公开(公告)日：2020-08-25
申请号：US16508508
申请日：2019-07-11
Applicant: Nidec Corporation , NIDEC TAIWAN CORPORATION
Inventor： Yusuke Makino , Yoshiki Kawai , Keisuke Morita , Guo Jhih Yan , Hsiu Ying Lin
Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.
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公开(公告)号：US20150318769A1
公开(公告)日：2015-11-05
申请号：US14417562
申请日：2013-12-03
Applicant: Nidec Corporation
Inventor： Naohiro Hashizume , Yusuke Makino , Takahiro Hiwa , Shohei Osuga
Abstract: A motor includes an armature core having m×n teeth (m is an odd number 3, and n is a natural number 2), a plurality of coils, and a commutator. The motor further includes field magnets including 2n magnetic poles and at least a first-potential brush and at least a second-potential brush. The commutator includes a segment group defined by 2m×n segments. Only the coil defined by winding a continuous conducting wire in a predetermined winding direction is disposed in each of k teeth among the m×n teeth, and only the coil defined by winding the continuous conducting wire in a direction reverse to the predetermined winding direction is disposed in each of teeth disposed at a position separated from each of the k teeth at 360×i degrees (i is a natural number≦(n−1)) of electric angles.
Abstract translation: 电动机包括具有m×n个齿（m为奇数3，n为自然数2）的电枢铁芯，多个线圈和整流子。 电动机还包括场磁体，其包括2n个磁极和至少一个第一电位电刷和至少一个第二电位电刷。 换向器包括由2m×n段限定的段组。 只有在m×n齿中的k个齿中的每一个中设置有以预定的卷绕方向卷绕连续的导线所限定的线圈，并且只有沿与预定的卷绕方向相反的方向卷绕连续的导线所限定的线圈是 设置在360°i度（i为自然数＆nlE;（n-1））的各个k个齿的位置上的每个齿。
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Patent Agency Ranking
公开(公告)号：US12034356B2
公开(公告)日：2024-07-09
申请号：US17311689
申请日：2019-11-22
Applicant: NIDEC CORPORATION
Inventor： Yusuke Makino , Riku Konishi , Tatsuki Shigeta
IPC: H02K5/26 , H02K3/52 , H02K5/173 , H02K11/215 , H02K21/16
CPC classification number: H02K5/26 , H02K3/522 , H02K5/1732 , H02K11/215 , H02K21/16 , H02K2203/09
Abstract: An exemplary embodiment of the present invention provides a motor including: a rotor configured to rotate about a central axis; a stator disposed radially opposite the rotor with a clearance defined between the stator and the rotor; a housing accommodating the rotor and the stator; a bearing supporting the rotor in a rotatable manner; a bearing holder holding the bearing, the bearing holder being fixed to the housing; a rotation sensor configured to detect rotation of the rotor; and a sensor holder disposed in the bearing holder to hold the rotation sensor. According to an exemplary embodiment of the present invention, the motor includes a position adjustment mechanism configured to adjust a circumferential position of the rotation sensor by integrally rotating the bearing holder and the sensor holder relative to the housing in a circumferential direction.
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公开(公告)号：US11277051B2
公开(公告)日：2022-03-15
申请号：US16321512
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Satoshi Kajikawa , Yusuke Makino
IPC: H02K5/22 , H02K3/50 , H02K9/06 , H02K21/22 , H02K7/14 , H02K11/215 , H02K11/33 , H02K5/20 , H02K7/08 , H02K5/173 , H02K5/08
Abstract: A motor includes a shaft, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, a covered cylindrical rotor connected to the shaft, and a bus bar unit. The armature includes a core back, teeth extending radially outward from the core back, an insulator covering surfaces of the, and a defined by a wire wound from above the insulator around the teeth. The bus bar unit includes bus bars to which the coils are connected, a bus bar holder holding the bus bars, and a bus bar cover covering portion of the bus bars.
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8.发明授权公开(公告)号：US11063496B2
公开(公告)日：2021-07-13
申请号：US16321513
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Yusuke Makino
Abstract: A motor includes a shaft, a bearing, an armature disposed radially outward of the bearing, a bracket, a rotor, and a circuit board on which a Hall element is mounted. The rotor includes a rotor magnet radially opposed to the armature radially outward of the armature. The bracket includes a cylindrical portion including an outer peripheral surface to which the armature is fixed, a bracket bottom portion extending radially outward from a lower end portion of the cylindrical portion, a bracket side wall portion extending upward from an outer peripheral portion of the bracket bottom portion, and a board holding portion connected to the bracket side wall portion. The circuit board is held by the board holding portion. The Hall element is held by the bracket side wall portion.
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公开(公告)号：US09787165B2
公开(公告)日：2017-10-10
申请号：US14417562
申请日：2013-12-03
Applicant: Nidec Corporation
Inventor： Naohiro Hashizume , Yusuke Makino , Takahiro Hiwa , Shohei Osuga
Abstract: A motor includes an armature core having m×n teeth (m is an odd number ≧3, and n is a natural number ≧2), a plurality of coils, and a commutator. The motor further includes field magnets including 2n magnetic poles and at least a first-potential brush and at least a second-potential brush. The commutator includes a segment group defined by 2m×n segments. Only the coil defined by winding a continuous conducting wire in a predetermined winding direction is disposed in each of k teeth among the m×n teeth, and only the coil defined by winding the continuous conducting wire in a direction reverse to the predetermined winding direction is disposed in each of teeth disposed at a position separated from each of the k teeth at 360×i degrees (i is a natural number ≦(n−1)) of electric angles.
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公开(公告)号：US12055211B2
公开(公告)日：2024-08-06
申请号：US18461511
申请日：2023-09-06
Applicant: NIDEC CORPORATION
Inventor： Shohei Fujimoto , Ayumi Nakagawa , Shuhei Nakamatsu , Yusuke Makino
IPC: F16H57/04 , F16H57/021 , F16H57/031 , B60K1/00 , F16H57/02
CPC classification number: F16H57/0476 , F16H57/021 , F16H57/031 , F16H57/0415 , F16H57/0423 , F16H57/0424 , F16H57/0441 , F16H57/045 , F16H57/0471 , B60K2001/001 , F16H2057/02034 , F16H2057/02052
Abstract: In a drive device, a first flow path of a fluid connects a gear accommodation portion and an inlet of a pump. A second flow path connects an outlet of the pump and one end of a third flow path via a cooler. The third flow path is inside a partition wall of a housing and intersects a rotation axis of a first shaft. A fourth flow path connects another end of the third flow path and one end of a fifth flow path. The fifth flow path is inside a gear side lid of the housing. Another end of the fifth flow path is connected to one end of a second shaft in an axial direction. One end of a sixth flow path is connected to another end of the third flow path. Another end of the sixth flow path is inside a housing tubular portion.
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