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公开(公告)号：US11228217B2
公开(公告)日：2022-01-18
申请号：US16667984
申请日：2019-10-30
申请人： Nidec Corporation
摘要： A bus bar assembly includes bus bars and a bus bar holder that is made of an insulating material and holds the bus bars in a non-contact state. The bus bars include base portions that overlap with other bus bars in the axial direction, and connecting portions extending from the base portions along the radial direction. At least two of the bus bars include stepped portions extending toward the other bus bars between proximal ends of the connecting portions and connection ends connected to windings. The bus bar holder molds the base portions and the stepped portions in a state where the connection ends are exposed.
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公开(公告)号：US10958131B2
公开(公告)日：2021-03-23
申请号：US16347601
申请日：2017-03-30
申请人： Nidec Corporation
IPC分类号： H02K5/26 , H02K5/16 , H02K9/22 , H02K11/33 , H02K15/14 , H02K3/38 , B62D5/04 , H02K3/50 , H02K5/22 , H02K7/08 , H02K3/12 , H02K11/30 , H02K3/04 , H02K5/04 , H02K15/085 , H01R13/52
摘要： A motor includes a rotor, a stator, a housing, a substrate, a connector, and a cover. The cover includes a covering wall that extends axially downward from a radial outer rim and covers at least a portion of the radial outer rim of the connector, and a cover recess that is radially inward from the covering wall and is depressed axially. The connector includes a connector projection that is provided in a radial outer edge area and extends axially, and the connector projection and the cover recess are fitted together through a gap.
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公开(公告)号：US11539260B2
公开(公告)日：2022-12-27
申请号：US17211890
申请日：2021-03-25
申请人： NIDEC CORPORATION
发明人： Yusaku Yoshida , Shunsuke Murakami , Yu Wang , Ting Huang
摘要： Embodiments of the present application provide a stator, comprising a coil group is provided with a first end part, a second end part, multiple coils respectively wound on a multiple teeth, and a transition line part configured to connect multiple coils, the first end part is provided with a first overlapping part having the same position as at least a part of the second end part in the circumferential direction, the second end part is provided with a second overlapping part having the same position as the first overlapping part in the circumferential direction, and a coil connecting part is connected with the first overlapping part and the second overlapping part.
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公开(公告)号：US10340767B2
公开(公告)日：2019-07-02
申请号：US15083626
申请日：2016-03-29
申请人： Nidec Corporation
摘要： A motor may include a rotor including a shaft; a stator arranged radially outside of the rotor; a bearing arranged on an upper side of the stator; a tubular housing; a bearing holder arranged on the upper side of the stator; and a busbar unit arranged on an upper side of the bearing holder. The rotor may include a rotor magnet fixed to the shaft. The stator may include an annular core back; teeth arranged to extend radially inward from the core back; and coils wound around the teeth. The housing may include a housing inner circumferential surface arranged to hold the stator. The bearing holder may be arranged to be in contact with the housing inner circumferential surface. The busbar unit may be arranged to be in contact with the housing inner circumferential surface.
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公开(公告)号：US11251666B2
公开(公告)日：2022-02-15
申请号：US16824736
申请日：2020-03-20
申请人： Nidec Corporation
发明人： Yusaku Yoshida , Tatsuya Onishi , Xiao Zhang , Yu Wang
摘要： A motor includes a rotating shaft extending along a central axis, a stator core arranged about the rotating shaft by being centered on the central axis, a housing arranged about the stator core in a circumferential direction and including an opening on one side in an axial direction, and a support covering the opening. A functional component is mounted on at least one side of the support in the axial direction. The motor further includes a fastener disposed in the axial direction to secure the support, the stator core, and the housing.
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公开(公告)号：US11228220B2
公开(公告)日：2022-01-18
申请号：US16636046
申请日：2018-07-27
申请人： Nidec Corporation
摘要： A bus-bar unit includes bus-bars and a bus-bar holder supporting the bus-bars. Each bus-bar includes first and second bus-bar pieces. The first bus-bar piece includes a coil wire connection portion connected to a coil wire drawn from the stator and a first joint terminal joined to the second bus-bar piece. The second bus-bar piece includes an external connection terminal connected to an external apparatus and a second joint terminal joined to the first bus-bar piece. At least a portion of the first bus-bar pieces is embedded in the bus-bar holder. The first joint terminal includes a joint surface which faces and is joined to the second joint terminal and an opposite surface facing a side opposite to the joint surface. The joint surface and the opposite surface of the first joint terminal are exposed from the bus-bar holder.
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公开(公告)号：US11088594B2
公开(公告)日：2021-08-10
申请号：US16347823
申请日：2017-03-30
申请人： Nidec Corporation
IPC分类号： H02K5/26 , B62D5/04 , H02K3/50 , H02K5/16 , H02K5/22 , H02K7/08 , H02K9/22 , H02K11/33 , H02K3/12 , H02K15/14 , H02K3/38 , H02K11/30 , H02K3/04 , H02K5/04 , H02K15/085 , H01R13/52
摘要： A motor includes a rotor, a stator, a housing, a heat sink, a substrate, a connector, and a cover. The connector includes a connector shell with a shell projection or shell recess. The heat sink includes a heat sink body and a heat sink protrusion. The heat sink protrusion includes a heat sink recess or heat sink projection. The shell projection or shell recess, and the heat sink recess or heat sink projection are fitted through a gap.
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公开(公告)号：US12113416B2
公开(公告)日：2024-10-08
申请号：US17706585
申请日：2022-03-28
申请人： NIDEC CORPORATION
发明人： Yusaku Yoshida , Yu Wang , Jun Gao
IPC分类号： H02K3/50
CPC分类号： H02K3/50 , H02K2203/09
摘要： The example of the present application provides a motor and an electrical product. The motor includes a rotor that is arranged in a rotatable manner centered on a central axis, a stator arranged on an outer circumference of the rotor and facing the rotor in a radial direction, a bus bar holder arranged on one side of the rotor and the stator in an axial direction, and a housing that is cylindrical or substantially cylindrical. The rotor, the stator, and the bus bar holder are contained inside the housing. The bus bar holder has a protrusion on one side in the axial direction, and the protrusion is in contact with the bottom of the housing.
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公开(公告)号：US11611260B2
公开(公告)日：2023-03-21
申请号：US16346879
申请日：2017-03-30
申请人： Nidec Corporation
发明人： Toshiya Okamoto , Takashi Hattori , Yusaku Yoshida , Yoshiaki Yamashita , Takahiro Kizu , Yuichi Nishikawa
IPC分类号： B62D5/04 , H02K5/22 , H02K7/08 , H02K15/085 , H02K5/26 , H02K3/50 , H02K5/16 , H02K11/33 , H02K3/12 , H02K3/38 , H02K3/04 , H02K5/04 , H02K9/22 , H02K15/14 , H02K11/30 , H01R13/52
摘要： A motor includes a rotor, a stator including coils defined by windings of coil wires, a coil support into which the coil wires are inserted, a bearing supporting the shaft, a holder with a through-hole that holds both the bearing and the coil support. The coil support includes a base on the top surface of the stator, and a coil support portion extending axially upward from the base, at least a portion of which is located in the through-hole. The base is fitted to the stator through a gap.
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公开(公告)号：US11437879B2
公开(公告)日：2022-09-06
申请号：US16636041
申请日：2018-07-27
申请人： Nidec Corporation
摘要： A bus-bar unit includes bus-bars and a bus-bar holder supporting the bus-bars. The bus-bar includes a first and a second bus-bar piece, including a plate. The first bus-bar piece includes a coil wire connecting portion connected to a coil wire drawn from a stator, and a first junction terminal joined to the second bus-bar piece. The second bus-bar piece includes an external connection terminal connected to an external device, a second junction terminal joined to the first bus-bar piece, and a second piece main body connecting them. The second piece main body has a first extension extending from the external connection terminal along a direction perpendicular or substantially perpendicular to the axial direction, a second extension extending from the second junction terminal along a direction perpendicular or substantially perpendicular to the axial direction, and a crank portion located between them and bent in a crank shape in a plate thickness direction.
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