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公开(公告)号:US11722029B2
公开(公告)日:2023-08-08
申请号:US17037912
申请日:2020-09-30
发明人: Kohei Egashira , Kazuya Hasegawa , Tatsuro Hino
CPC分类号: H02K3/50 , H02K3/24 , H02K9/19 , H02K11/25 , H02K2203/09
摘要: To provide a rotary electric machine which is improved in cooling performance. The rotary electric machine includes a rotor; and a stator which, being disposed opposite the rotor, has a stator core having a plurality of slots therein and a stator winding wound in the plurality of slots, wherein the stator has a plurality of coil ends which are formed protruding from an axial end face of the stator core and between adjacent ones of which is provided a radial clearance passing through from the inner diameter side to the outer diameter side, and wherein the stator includes a bus bar which, being disposed on the inner diameter side of the plurality of coil ends so as to occlude the clearances between the plurality of coil ends, guides a refrigerant, which is supplied from the radial direction of the stator, to the plurality of coil ends.
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2.
公开(公告)号:US20210296975A1
公开(公告)日:2021-09-23
申请号:US16321670
申请日:2017-08-28
发明人: Tatsuro Hino , Akihito Mori , Naohiko Ayukawa , Kenichi Hirooka , Masashi Nakamura , Kohei Egashira , Shinichiro Yoshida , Daisuke Shijo
摘要: A laminated core manufacturing method according to the present invention is a manufacturing method for a laminated core including: a laminated body that is configured by laminating core strips that are made of a magnetic material, the laminated body including: a core back portion; and a tooth portion; and electrically insulating members that are disposed on two side portions of the tooth portion, wherein the laminated core manufacturing method includes a bonding step in which the insulating members are pressed onto each of the side surfaces of the tooth portion of the laminated body so as to integrate the laminated body and also so as to fix the insulating members to the laminated body, by means of at least one of an adhesive and a pressure-sensitive adhesive that is disposed between each of the side surfaces of the tooth portion and the insulating members.
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公开(公告)号:US20210184532A1
公开(公告)日:2021-06-17
申请号:US17037912
申请日:2020-09-30
发明人: Kohei EGASHIRA , Kazuya Hasegawa , Tatsuro Hino
摘要: To provide a rotary electric machine which is improved in cooling performance. The rotary electric machine includes a rotor; and a stator which, being disposed opposite the rotor, has a stator core having a plurality of slots therein and a stator winding wound in the plurality of slots, wherein the stator has a plurality of coil ends which are formed protruding from an axial end face of the stator core and between adjacent ones of which is provided a radial clearance passing through from the inner diameter side to the outer diameter side, and wherein the stator includes a bus bar which, being disposed on the inner diameter side of the plurality of coil ends so as to occlude the clearances between the plurality of coil ends, guides a refrigerant, which is supplied from the radial direction of the stator, to the plurality of coil ends.
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公开(公告)号:US10594195B2
公开(公告)日:2020-03-17
申请号:US15111325
申请日:2014-11-14
发明人: Hironori Tsuiki , Tatsuro Hino , Atsushi Sakaue , Kazunori Muto , Hiroyuki Yasuda , Kohei Egashira , Akira Hashimoto , Hiroyuki Akita
摘要: A manufacturing method for a stator winding coil includes: a bulging portion forming step that forms a bulging portion on a conductor wire; a crank portion forming step that forms a crank portion on the central portion of the bulging portion; an oblique portion forming step that forms oblique portions on the conductor wire at two ends of the bulging portion; a rectilinear portion forming step that forms rectilinear portions on the conductor wire at opposite ends of the oblique portions from the bulging portion; and a circular arc forming step that forms the oblique portions into a circular arc shape after forming the rectilinear portions.
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公开(公告)号:US20190356180A1
公开(公告)日:2019-11-21
申请号:US16260436
申请日:2019-01-29
发明人: Masashi Nakamura , Akihito Mori , Tatsuro Hino , Kohei Yasuda
摘要: A rotating electrical machine can increase the strength of divided cores and, in addition, can achieve both a reduction in iron loss and a high rigidity of the divided cores. The stator of the rotating electrical machine includes a stator core having radially divided cores arranged in a ring, each divided core being a laminate of magnetic steel sheets. Each divided core has a swaged portion in which the laminated magnetic steel sheets are bonded by swaging. The swaged portion is disposed in a core back portion, which is in contact with core back portions of divided cores located on both sides of the divided core at a position whose distance from an outer periphery of the core back portion is within ⅓ of a radial length of the core back portion.
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公开(公告)号:US10439455B2
公开(公告)日:2019-10-08
申请号:US15512927
申请日:2015-12-09
发明人: Aiko Nakano , Atsushi Sakaue , Tatsuro Hino , Kazunori Muto , Yoshihiro Harada , Shinkichi Sawa , Masashi Nakamura
摘要: A tooth groove is provided at a border portion between a tooth body portion and a protrusion. The angle between a tooth body portion lateral face which is a lateral face in the circumferential direction of the tooth body portion and a tooth body portion stop portion which is a face, of the tooth groove, continued from the tooth body portion lateral face is the right angle or an acute angle. The protrusion is rotated toward the outer side in the circumferential direction, to bring a protrusion stop portion into close contact with the tooth body portion stop portion, the protrusion stop portion being an outer-circumferential-side lateral face of the protrusion, thereby forming a shoe in a tooth.
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公开(公告)号:US10355547B2
公开(公告)日:2019-07-16
申请号:US15784292
申请日:2017-10-16
发明人: Tatsuro Hino , Masashi Nakamura , Kohei Egashira
IPC分类号: H02K3/04 , H02K3/12 , H02K3/50 , H02K1/16 , H02K3/48 , H02K3/28 , H02K15/00 , H02K3/52 , H02K29/03 , H02K1/27
摘要: Phase windings are configured radially inside first coil ends by connecting together tip portions of first terminals that are bent so as to extend outward from slots that are six slots apart, and radially outside the first coil ends by connecting together tip portions of second terminals that are bent so as to extend outward from slots that are five slots apart, and also connecting together tip portions of second terminals that are bent so as to extend outward from slots that are seven slots apart in modified positions of an inserted slot group, and by connecting together tip portions of second terminals that are bent so as to extend outward from slots that are six slots apart in regions other than the modified positions of the inserted slot group.
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公开(公告)号:US10243418B2
公开(公告)日:2019-03-26
申请号:US15240394
申请日:2016-08-18
摘要: A three-phase alternating-current winding is configured by connecting first conductor terminals and second conductor terminals that are disposed in a circular arc-shaped region using connecting units, electric power supplying terminals of the three-phase alternating-current winding are constituted by the first conductor terminals and the second conductor terminals that are disposed in the circular arc-shaped region, a number of parallel phase windings in the three-phase alternating-current winding is n, where n is a natural number that is greater than or equal to one, an angular range of the circular arc-shaped region is less than or equal to (180×n) electrical degrees, and the second conductor terminals that constitute the electric power supplying terminals are positioned between adjacent first conductor terminals when viewed from a radially outer side.
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公开(公告)号:US10164490B2
公开(公告)日:2018-12-25
申请号:US15027658
申请日:2014-06-27
发明人: Hironori Tsuiki , Tatsuro Hino , Atsushi Sakaue , Akira Hashimoto , Kazunori Muto , Masashi Nakamura , Shinkichi Sawa , Hiroyuki Akita
IPC分类号: H02K3/28 , H02K3/12 , H02K15/04 , H02K15/085 , H02K15/00
摘要: In a rotary electric machine according to the present invention, an armature winding includes a plurality of distributed winding bodies that are each produced by winding a single conductor wire that is insulated, that is jointless and continuous, and that has a constant cross-sectional area perpendicular to a longitudinal direction, the conductor wires include first through third coil end portions that link first through fourth rectilinear portions and first through fourth rectilinear portions, and are formed such that radial widths w′ of the first through fourth rectilinear portions are wider than radial widths w of the first through third coil end portions.
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公开(公告)号:US09712012B2
公开(公告)日:2017-07-18
申请号:US14252385
申请日:2014-04-14
发明人: Hirohisa Yokota , Atsushi Sakaue , Hironori Tsuiki , Tatsuro Hino , Shinkichi Sawa , Masashi Nakamura , Shogo Okamoto
摘要: An armature winding includes a plurality of distributed winding bodies that are each produced by winding a single conductor wire that is insulated, jointless, and continuous, and that has a constant cross-sectional area perpendicular to a longitudinal direction, the conductor wires include first through third coil end portions that link first through fourth rectilinear portions and first through fourth rectilinear portions, and are formed such that radial widths w′ of the first through fourth rectilinear portions are wider than radial widths w of the first through third coil end portions, and first gaps are formed between radially adjacent coil end portions to allow a cooling medium to pass through the first gaps.
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