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公开(公告)号：US10749386B2
公开(公告)日：2020-08-18
申请号：US16113368
申请日：2018-08-27
申请人： DENSO CORPORATION
发明人： Asuka Tanaka , Katsuya Fujisaki
摘要： A stator core is a stack body of plural plates. Each plate includes an annular back yoke part, plural top-connected tooth parts, plural top-separated tooth parts, plural magnetic path parts and plural top open parts. The top-connected tooth part and the top-separated tooth part protrude from the back yoke part in a radial direction. The top magnetic path part connects top ends of two top-connected tooth parts. The top open part is open to a rotor side at both sides of the top end of the top-separated tooth part. The stator core includes a back yoke, plural teeth, plural partially-connected parts and plural open parts. Each partially-connected part is formed of plural top magnetic path parts and top open parts, which extend in an axial direction. Each open part is formed of only the plural top open parts, which extend continuously in the axial direction.
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公开(公告)号：US12123715B2
公开(公告)日：2024-10-22
申请号：US17813522
申请日：2022-07-19
申请人： DENSO CORPORATION
发明人： Asuka Tanaka , Toshihiro Fujita , Jun Morimoto
摘要： A magnet holder is used in a rotational angle sensing device and is shaped in a tubular form while the magnet holder is configured to hold a magnet opposed to a magnetic sensor and is also configured to be securely press-fitted to a rotatable body. The magnet holder includes: a magnet holding portion that is located at one side of the magnet holder in an axial direction; a press-fitting fixation portion that is located at another side of the magnet holder in the axial direction; and a connecting portion that connects between the magnet holding portion and the press-fitting fixation portion. An outer diameter of the press-fitting fixation portion is different from an outer diameter of the magnet holding portion, and a wall thickness of the press-fitting fixation portion is different from a wall thickness of the magnet holding portion.
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公开(公告)号：US09793768B2
公开(公告)日：2017-10-17
申请号：US14450404
申请日：2014-08-04
申请人： DENSO CORPORATION
发明人： Asuka Tanaka , Tatsuya Inagaki
CPC分类号： H02K1/2746 , H02K1/276 , H02K1/278 , H02K29/03 , H02K2213/03
摘要： A rotor has a projection part projected from an inner wall of a central hole part toward a central axis and a rib part defined between opening parts adjacent with each other in a circumferential direction. A first imaginary straight line is defined to extend from the central axis outward in a radial direction through a center of the projection part. The projection part is formed so that the first imaginary straight line passes the opening part. A second imaginary straight line is defined to extend from the central axis outward in the radial direction through a center of the rib part. The rib part is formed so that the second imaginary straight line passes a center of a pole part or an intermediate position between pole parts adjacent with each other in the circumferential direction.
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公开(公告)号：US09735636B2
公开(公告)日：2017-08-15
申请号：US14560871
申请日：2014-12-04
申请人： DENSO CORPORATION
发明人： Asuka Tanaka , Akihiro Kimura , Jirou Hayashi , Makoto Taniguchi
IPC分类号： H02K1/27
CPC分类号： H02K1/278 , H02K1/276 , H02K2213/03
摘要： Each permanent magnet provided in a rotor includes a projection that projects toward a corresponding predetermined portion of the rotor core. An inner peripheral surface of each permanent magnet, which is radially opposed to the corresponding predetermined portion of the rotor core, includes a primary contacting portion and two primary non-contacting portions. The primary contacting portion contacts the corresponding predetermined portion of the rotor core at a circumferential location, which corresponds to the projection. The primary non-contacting portions do not contact the rotor core and are located on two circumferentially opposite sides, respectively, of the primary contacting portion.
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公开(公告)号：US12040681B2
公开(公告)日：2024-07-16
申请号：US17660811
申请日：2022-04-26
申请人： DENSO CORPORATION
发明人： Hiroki Tomizawa , Asuka Tanaka , Masashi Yamasaki , Takamasa Mutou , Yasuaki Koyano , Hisashi Yamamoto , Yusuke Shikata
CPC分类号： H02K5/26 , H02K5/1732 , H02K5/225 , H02K7/083 , H02K7/1004 , H02K7/116 , H02K9/227 , H02K11/33 , H02K2207/03
摘要： A housing is shaped in a bottomed tubular form. A stator is fixed to a stator receiving portion of a tubular portion of the housing at an arbitrary angle position around an axis of the tubular portion. A heat sink is fixed to a heat sink fixing portion of the tubular portion at an arbitrary angle position around the axis of the tubular portion. A control device includes a connector for electrically connecting with an external device and is configured to control energization of the stator. Each of a plurality of externally mounting portions is a part of a bottom portion of the housing and is formed integrally with the housing in one-piece. A plurality of housing positioning holes are formed at the bottom portion of the housing and are arranged at equal intervals along a circle that is concentric with the tubular portion.
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公开(公告)号：US09653953B2
公开(公告)日：2017-05-16
申请号：US14097947
申请日：2013-12-05
申请人： DENSO CORPORATION
发明人： Asuka Tanaka
CPC分类号： H02K1/2746 , H02K1/32 , H02K9/06 , H02K9/08
摘要： A rotor for a rotating electric machine includes a core body having a through-hole, a magnet, a tubular portion, and a plate part having an opening. The through-hole passes through the core body in a thickness direction. The magnet is disposed on an outer wall of the core body. The tubular portion is placed radially-outward of the core body. The plate part seals at least one end of the tubular portion in an axial direction. The opening is provided at a position corresponding to the through-hole and passes through the plate part in a thickness direction. The through-hole is one of a plurality of the through-holes, and the magnet is one of a plurality of the magnets.
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