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公开(公告)号：US20210021167A1
公开(公告)日：2021-01-21
申请号：US17041019
申请日：2019-04-10
Inventor： YUYA MAEDA , TOSHIYUKI TAMAMURA , MITSUOKI HISHIDA , KIYOMI KAWAMURA
Abstract: A coil is a coil of a conductive wire that has a quadrangular cross section, that is spirally wound and laminated to have a series of turns including first to n-th turns (n is an integer of 3 or more), and that is provided, on at least some of the first to n-th turns in the coil, with deformed portions representing recesses each having a shape different from a shape of another portion of the conductive wire. In each of the first and n-th turns respectively lying at both ends of the series of turns, an outer surface lying on a side opposite to a center of the series of turns extends flush along with a plane intersecting the series of turns.
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公开(公告)号：US20230387775A1
公开(公告)日：2023-11-30
申请号：US18249731
申请日：2021-11-04
Inventor： EIKI MORIMOTO , KIYOMI KAWAMURA , YASUAKI MATSUSHITA , NORITAKA ASO
IPC: H02K49/10
CPC classification number: H02K49/102
Abstract: Provided is a magnetic geared motor and a magnetic gear that support pole pieces with high rigidity, have small residual stress, and are very easy to assemble. Included are stator, first rotor that rotates by magnetic flux generated by stator, and second rotor that rotates at a speed different from that of first rotor. Second rotor includes a plurality of pole pieces annularly arranged along the circumferential direction of second rotor, and frame including a circumferential portion including a plurality of gaps respectively corresponding to the plurality of pole pieces and in each of which the corresponding one of the plurality of pole pieces is at least partly inserted. The plurality of pole pieces and frame are integrated with mold resin.
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公开(公告)号：US20220320932A1
公开(公告)日：2022-10-06
申请号：US17607923
申请日：2020-05-21
Inventor： HIROKI SAKAGUCHI , YOSHIHARU NAKAMURA , SHOICHI KOYAMA , TOSHIKIYO KAWAMURA , KIYOMI KAWAMURA , HIDEYUKI TANIGUCHI , AKIHIKO WATANABE
Abstract: A coil is configured with stacked n turns (where n is an integer of 2 or more) of spirally wound conductive wire having a rectangular cross-section. A k-th turn (where k is an integer and 1≤k≤n) of the coil has at least a straight portion and a corner portion extending from an end part of the straight portion. On an outer peripheral surface of the corner portion, there are formed at least a first bent portion bent toward an inner peripheral side and a second bent portion bent toward the outer peripheral side, and curvature C1 of the first bent portion is different from curvature C2 of second bent portion.
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公开(公告)号：US20160285326A1
公开(公告)日：2016-09-29
申请号：US14778575
申请日：2014-03-20
Inventor： KIYOMI KAWAMURA , HIROAKI KAWASAKI , YUICHI YOSHIKAWA , YASUSHI KATO , HARUHIKO KADO , NORITAKA ASO
CPC classification number: H02K1/2706 , H02K1/02 , H02K1/14 , H02K1/16 , H02K1/276 , H02K3/12 , H02K15/03 , H02K2213/03
Abstract: A permanent-magnet-embedded electric motor includes a stator having a coil wound on a stator core, and a rotor disposed rotatably inside the stator through a gap to an inner circumferential surface of the stator core. The rotor is provided with a rotor core formed of laminated steel plates having a plurality of magnet-embedding holes, and a permanent magnet housed and retained in each of the magnet-embedding holes. A thickness of the bridge portions formed between edges of the magnet-embedding holes and an outer circumference of the rotor core, and a thickness of a thinned link portion connecting adjoining two of the bridge portions are thinner than a thickness of the steel plates.
Abstract translation: 永久磁铁嵌入式电动机包括具有卷绕在定子铁芯上的线圈的定子和通过与定子铁芯的内周面的间隙可旋转地设置在定子内的转子。 该转子设置有由具有多个磁体埋入孔的层叠钢板形成的转子铁芯和容纳并保持在每个磁体埋入孔中的永磁体。 形成在磁体埋入孔的边缘与转子芯的外周之间的桥接部分的厚度以及连接两个桥接部分的连接部分的薄壁部分的厚度比钢板的厚度薄。
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