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公开(公告)号：US20220085685A1
公开(公告)日：2022-03-17
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：US20190165639A1
公开(公告)日：2019-05-30
申请号：US16321510
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Yusuke MAKINO
IPC: H02K5/173 , H02K1/28 , H02K11/215 , H02K11/33 , H02K9/06 , F16C25/06 , F16C35/063
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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13.发明申请公开(公告)号：US20190052157A1
公开(公告)日：2019-02-14
申请号：US16059085
申请日：2018-08-09
Applicant: Nidec Corporation
Inventor： Yusuke MAKINO , Tomoya UEDA
Abstract: A rotor assembly includes a shaft including a non-magnetic material and a central axis extending along an up and down direction as a center, and a cylindrical rotor main body fixed to an outer surface of the shaft. The rotor main body includes core pieces arranged around the shaft in a circumferential direction, rotor magnets alternately arranged with the core pieces around the shaft in the circumferential direction, and a connection portion made of resin and connecting the shaft to the core pieces and the rotor magnets. Inner ends of the rotor magnets in a radial direction are closer to the shaft than inner ends of the core pieces in the radial direction.
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公开(公告)号：US20190052138A1
公开(公告)日：2019-02-14
申请号：US16053844
申请日：2018-08-03
Applicant: Nidec Corporation
Inventor： Yusuke MAKINO , Tomoya UEDA
Abstract: A rotor assembly includes a shaft with a central axis extending along an up and down direction as a center, and a cylindrical rotor main body fixed to an outer surface of the shaft, and the rotor main body includes core pieces arranged around the shaft in a circumferential direction, rotor magnets alternately arranged with the core pieces around the shaft in the circumferential direction, and a connection portion made of resin and connecting the shaft to the core pieces and the rotor magnets. Each of the rotor magnets includes an engagement region covered by the connection portion of the rotor magnet surface, and an exposed region including an outer surface positioned outward of the rotor magnet surface in a radial direction and is exposed from the connection portion.
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公开(公告)号：US20140319936A1
公开(公告)日：2014-10-30
申请号：US14258271
申请日：2014-04-22
Applicant: NIDEC CORPORATION
Inventor： Yusuke MAKINO , Yoshiki KAWAI
CPC classification number: H02K5/20 , H02K1/185 , H02K5/12 , H02K5/15 , H02K5/16 , H02K9/00 , H02K9/19 , H02K9/22 , H02K15/12
Abstract: A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion.
Abstract translation: 电动机包括壳体，定子保持器，定子和用于冷却流体的流路。 冷却流路设置在壳体和定子保持器之间。 定子的线圈被树脂部分覆盖。 定子保持器可以包括保持器圆柱形部分和保持器平板部分。
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Patent Agency Ranking
公开(公告)号：US20240235319A9
公开(公告)日：2024-07-11
申请号：US18547506
申请日：2021-06-09
Applicant: NIDEC CORPORATION
Inventor： Ayumi NAKAGAWA , Hiroki AKAISHI , Yusuke MAKINO
Abstract: For example, a drive motor module capable of suppressing resonance of an inverter cover due to vibration from a motor or the like is provided. A drive motor module 1 includes a motor, an inverter electrically connected to the motor, a housing that houses the motor and the inverter, and an inverter cover that has a plate shape and covers the inverter. An outer surface of an inverter cover is divided into a first region and a second region in plan view. In the first region, a plurality of first ribs arranged in parallel to each other and a connecting portion extending in a direction intersecting with the first rib and connected to one end side of each of the first ribs are provided in a protruding manner. In the second region, a plurality of second ribs that radially extend are provided in a protruding manner.
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公开(公告)号：US20230407958A1
公开(公告)日：2023-12-21
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
CPC classification number: F16H57/0476 , F16H57/021 , F16H57/031 , F16H57/0424 , F16H57/0441 , F16H57/0423 , F16H57/0471 , F16H57/045 , F16H57/0415 , B60K2001/001
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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公开(公告)号：US20190181722A1
公开(公告)日：2019-06-13
申请号：US16321514
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Satoshi KAJIKAWA , Yusuke MAKINO
Abstract: A motor includes a shaft centered on a center axis oriented in a vertical direction, a bearing rotatably supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a covered cylindrical rotor connected to the shaft. The rotor includes a disk-shaped rotor lid portion connected to the shaft, and a rotor side wall portion extending downward from an outer edge of the rotor lid portion. The shaft is made of metal. The rotor lid portion and the rotor side wall portion are made of resin. The rotor lid portion and the shaft are an integrally molded article.
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公开(公告)号：US20190178261A1
公开(公告)日：2019-06-13
申请号：US16321511
申请日：2017-08-04
Applicant: Nidec Corporation
Inventor： Satoshi KAJIKAWA , Tomoya UEDA , Yusuke MAKINO
Abstract: A motor includes a shaft centered on a center axis oriented in a vertical direction, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a covered cylindrical rotor connected to the shaft. The rotor includes a rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, a blower plate portion connected to a lower surface of the rotor lid portion and extending radially outward from a center portion of the rotor lid portion, an inlet disposed radially outward of the cylindrical portion and penetrating the bracket, and an outlet disposed radially outward of the blower plate portion and radially penetrating the rotor.
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公开(公告)号：US20160352189A1
公开(公告)日：2016-12-01
申请号：US15146258
申请日：2016-05-04
Applicant: NIDEC CORPORATION
Inventor： Yosuke YAMADA , Ryusuke SATO , Yasuaki NAKAHARA , Yusuke MAKINO , Hisashi FUJIHARA
IPC: H02K11/215
CPC classification number: H02K11/215 , H02K5/04 , H02K5/225 , H02K11/33
Abstract: A case includes a cylindrical housing arranged to hold a stator, and having an opening portion at a top thereof; and a motor cover fitted to an upper side of the housing, and arranged to cover an upper side of the stator. A busbar unit includes a sensor busbar electrically connected to a rotation sensor, and a busbar holder arranged at the opening portion to hold the sensor busbar. The case includes a case through hole arranged to open into a space outside of the case. The busbar holder includes a cylindrical holder body portion having at least a portion thereof arranged radially inside of the opening portion; and a protruding portion arranged to protrude out of the case, and having at least a portion thereof arranged in the case through hole. A gap is defined circumferentially between the protruding portion and an edge of the case through hole.
Abstract translation: 壳体包括布置成保持定子的圆柱形壳体，并且在其顶部具有开口部分; 以及安装在所述壳体的上侧并且被布置成覆盖所述定子的上侧的电机盖。 母线单元包括电连接到旋转传感器的传感器母线和布置在开口部分处以保持传感器母线的汇流条保持器。 壳体包括布置成打开到壳体外部的空间的壳体通孔。 汇流条保持器包括：圆柱形保持器主体部分，其至少一部分布置在开口部分的径向内侧; 以及突出部，其布置成从壳体突出，并且其至少一部分布置在壳体通孔中。 在突出部分和壳体通孔的边缘之间周向地限定间隙。
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