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1.发明授权公开(公告)号：US09479021B2
公开(公告)日：2016-10-25
申请号：US14165806
申请日：2014-01-28
Applicant: DENSO CORPORATION
Inventor： Akito Tamura
Abstract: A stator of a rotary electric machine includes an annular stator core with a plurality of slots arranged in a circumferential direction, a stator winding formed by three phases of phase windings wound around the slots, and neutral wires for commonly connecting ends of the phase windings together in star-connection. Each of the phase windings has two partial windings that are electrically connected in parallel, ends of at least two sets of the partial windings formed by combining two partial windings among the total of six partial windings in different phases and the ends of the neutral wires are connected electrically, and the partial windings connected to both ends of each neutral wire include all the phases.
Abstract translation: 旋转电机的定子包括具有沿圆周方向布置的多个槽的环形定子铁芯，由缠绕在槽周围的三相相绕组形成的定子绕组和用于将相绕组的一端共同连接的中性线 在星形连接。 每个相绕组具有并联电连接的两个部分绕组，至少两组部分绕组的端部通过组合在不同相中的六个部分绕组中的两个部分绕组而形成，并且中性线的端部为 连接到每个中性线的两端的部分绕组包括所有相。
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公开(公告)号：US12244191B2
公开(公告)日：2025-03-04
申请号：US17678674
申请日：2022-02-23
Applicant: DENSO CORPORATION
Inventor： Akito Tamura , Kazuya Iwase
Abstract: A stator with a multi-phase stator winding including phase windings each made of several winding segments, the segments including intermediate conductor portions arranged away from each other in a circumferential direction and link portions located at first and second radial end sides and connect the paired intermediate conductor portions into an annular shape. The winding segments are adjacent each other in a circumferential direction partially overlapping in the circumferential direction and include first and second winding segments overlapping each other in the circumferential direction. The link portions of the first winding segments are bent radially inward at at least one of axially opposed ends of the stator winding. The link portions of the second winding segments are bent radially outward at the at least one of the axially opposed ends of the stator winding. These link portions are arranged not overlapping in an axial direction of the stator.
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公开(公告)号：US12009718B2
公开(公告)日：2024-06-11
申请号：US17410751
申请日：2021-08-24
Applicant: DENSO CORPORATION
Inventor： Akito Tamura , Yuki Takahashi , Kazuya Iwase
CPC classification number: H02K3/522
Abstract: An armature includes an armature coil including a plurality of coil modules and a base member including a cylindrical back core. Each of the coil modules includes a corresponding partial winding of the armature coil and a back-yoke-side insulating wall formed on the back yoke side of the corresponding partial winding. The coil modules are arranged, on a radially inner side or a radially outer side of the base member, in alignment with each other in a circumferential direction. The base member has a plurality of first engaging portions formed therein and each of the coil modules has at least one second engaging portion formed in the back-yoke-side insulating wall thereof. The coil modules are fixed to the base member with each of the first engaging portions of the base member engaging with a corresponding one of the second engaging portions of the coil modules in the circumferential direction.
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公开(公告)号：US09893583B2
公开(公告)日：2018-02-13
申请号：US15590071
申请日：2017-05-09
Applicant: DENSO CORPORATION
Inventor： Akito Tamura
Abstract: A stator for a rotating electric machine, including an annular stator core having a plurality of slots circumferentially arranged in the stator core, and a stator winding wound around the stator core and comprised of a plurality of U-shaped conductor segments inserted in the slots and connected to each other. Each conductor segment includes a conductor and a bilayer insulative coating comprised of an insulating layer covering a peripheral surface of the conductor and a protective layer covering a peripheral surface of the insulating layer. The protective layer is formed of a material having a Young's modulus that is equal to or greater than a Young's modulus of the insulating layer at room temperature and less than the Young's modulus of the insulating layer in high temperature environments caused by heat generation of the stator winding.
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5.发明授权公开(公告)号：US12021422B2
公开(公告)日：2024-06-25
申请号：US17551137
申请日：2021-12-14
Applicant: DENSO CORPORATION
Inventor： Akito Tamura , Hiroshi Endou
Abstract: An armature includes a multiphase stator winding assembly that includes multiphase stator windings. Each of the multiphase stator windings includes a plurality of winding segments. Each of the winding segments includes a conductor. The conductor of each of the winding segments of each of the multi-phase windings is wound along an armature core while being engaged with a corresponding at least one of first protrusions and a corresponding at least one of second protrusions, and extending along one of radially inner and outer peripheral surfaces of the armature core. The first protrusions extend axially from a first end plate of the armature core, and the second protrusions extend axially from a second end plate of the armature core.
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Patent Agency Ranking
公开(公告)号：US12009712B2
公开(公告)日：2024-06-11
申请号：US17578243
申请日：2022-01-18
Applicant: DENSO CORPORATION
Inventor： Yuuki Mawatari , Akito Tamura
Abstract: A rotating electric machine includes an armature coil having a plurality of phase windings for respective phases. Each of the phase windings is constituted of a plurality of partial windings each having a pair of intermediate conductor portions and a pair of bridging portions connecting the pair of intermediate conductor portions. All the intermediate conductor portions of the partial windings are arranged in a predetermined sequence in a circumferential direction. At each of coil ends of the armature coil, the bridging portions of the partial windings of different phases intersect one another. Each of the partial windings has a mounting member provided integrally therewith for mounting it to a support member. For each circumferentially-adjacent pair of the partial windings whose bridging portions intersect one another, the mounting members provided respectively integrally with the pair of the partial windings are together fixed to the support member by a common fixing member.
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公开(公告)号：US10418881B2
公开(公告)日：2019-09-17
申请号：US14020753
申请日：2013-09-06
Applicant: DENSO CORPORATION
Inventor： Akito Tamura
Abstract: A rotary electric machine includes a rotor, a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core, and a cooling mechanism for cooling first and second coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof. The stator is disposed along an inner circumferential surface of at least one of the first and the second coil-end groups of the stator winding, and there is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the first and the second coil-end groups. Thus, it is possible to cool throughout the first and the second coil-end groups efficiently and reliably by the liquid coolant, a sufficient cooling effect can be obtained.
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公开(公告)号：US09887596B2
公开(公告)日：2018-02-06
申请号：US15048118
申请日：2016-02-19
Applicant: DENSO CORPORATION
Inventor： Akito Tamura
Abstract: In a rotating electric machine, a stator includes a stator core having slots formed therein and a stator coil comprised of phase windings each of which includes in-slot portions and turn portions. The turn portions of the phase windings together constitute a coil end part of the stator coil. Further, a cooling mechanism is provided to drop liquid coolant onto the coil end part. Moreover, the turn portions of the phase windings include long-pitch turn portions and short-pitch turn portions. In the coil end part, there are axially-overlapping pairs of the long-pitch and short-pitch turn portions over an entire circumferential range of the stator coil. For each axially-overlapping pair of the long-pitch and short-pitch turn portions, the short-pitch turn portion is located axially inside the long-pitch turn portion and faces the long-pitch turn portion through a void space formed therebetween over entire lengths of the long-pitch and short-pitch turn portions.
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公开(公告)号：US09866083B2
公开(公告)日：2018-01-09
申请号：US14751924
申请日：2015-06-26
Applicant: DENSO CORPORATION
Inventor： Akito Tamura
Abstract: A stator includes an annular stator core and a stator coil. The stator core has U-phase slots, V-phase slots and W-phase slots sequentially and repeatedly provided in pairs in its circumferential direction. The stator coil has U-phase, V-phase and W-phase windings respectively received in the U-phase, V-phase and W-phase slots. In each of the slots, there are received 2×N in-slot portions of a corresponding one of the phase windings in radial alignment with each other, where N≧2. Each of the phase windings consists of a pair of sub-windings connected parallel to each other. Each of the sub-windings includes winding sections that are classified into N winding section groups. Each of the winding sections of (N−1) winding section groups is connected via only serial connection, and each of the winding sections of the remaining one winding section group is connected via both serial connection and parallel connection.
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公开(公告)号：US12068670B2
公开(公告)日：2024-08-20
申请号：US17411132
申请日：2021-08-25
Applicant: DENSO CORPORATION
Inventor： Akito Tamura , Yuki Mawatari , Hiroyuki Tsuchiya
CPC classification number: H02K9/223 , H02K3/50 , H02K21/14 , H02K2203/06
Abstract: In a rotating electrical machine, a holder member is disposed to be radially closer to an armature coil than to a magnetic field generator. The holder member is configured to hold the armature coil. The holder member has a first portion that faces a first end portion of the armature coil, and a second portion that faces a second end portion of the armature coil. The first portion of the holder member is thermally coupled to the first end portion of the armature coil. The second portion of the holder member is thermally coupled to the second end portion of the armature coil.
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