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公开(公告)号：US20220368189A1
公开(公告)日：2022-11-17
申请号：US17875550
申请日：2022-07-28
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02K3/52
Abstract: A rotating electrical machine includes an armature that includes a multiphase armature winding. The multiphase armature winding includes winding segments. Each of the winding segments is comprised of a multiply-wound conductive wire member. The winding segments are arranged at predetermined intervals in a circumferential direction of the rotating electrical machine. Each of the winding segments has an end. The ends of the winding segments are collected at a predetermined connection point. The collected ends of the winding segments are connected to a neutral point or an input/output terminal of a power converter.
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公开(公告)号：US20220302785A1
公开(公告)日：2022-09-22
申请号：US17832850
申请日：2022-06-06
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02K3/28 , H02K1/2753 , H02K11/33 , H02K21/22
Abstract: A rotating electrical machine armature winding includes conductor portions arranged circumferentially away from each other and face a magnet unit. The conductor portions have no inter-conductor members circumferentially disposed therebetween. Each conductor portion includes wire segments of the conductor wire member arranged in circumferentially and radially arranged rows. The conductor portions include a first conductor portion and a second conductor portion which are arranged adjacent to each other in the circumferential direction as a pair and belong to the same phase. The first conductor portion includes the wire segments of the conductor wire member which are arranged asymmetrically with those of the second conductor portion in the circumferential direction. The magnet unit includes magnet which have major magnetic pole faces. Each of the major magnetic pole faces is shaped to have a major magnetic pole angle is selected to be less than or equal to an inter-conductor angle.
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公开(公告)号：US20220286007A1
公开(公告)日：2022-09-08
申请号：US17749897
申请日：2022-05-20
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
Abstract: A rotating electric machine includes a field system having a magnet section, and an armature having a multi-phase armature coil. The magnet section has easy axes of magnetization oriented to be nearer perpendicular to a q-axis at locations closer to the q-axis than at locations closer to a d-axis, or to be perpendicular to the q-axis at locations on the q-axis. Each phase of the armature coil has electrical conductor sections formed by winding an electrical conductor wire multiply and arranged at positions facing the magnet section and at a predetermined interval in a circumferential direction. The electrical conductor wire includes a plurality of element wires in a radially laminated state and an insulating coat covering the laminated element wires. Each of the element wires has a flat cross section that is longer in the circumferential direction than in a radial direction.
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公开(公告)号：US20220263393A1
公开(公告)日：2022-08-18
申请号：US17729589
申请日：2022-04-26
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
Abstract: In a rotating electrical machine, each of permanent magnets of a magnet unit has opposing first and second outer surfaces. The first outer surface is located to be closer to an armature than the second outer surface. The first outer surface serves as a magnetic flux-acting surface. The magnet unit concentrates the magnetic fluxes created by each of the permanent magnets through a d-axis part of the magnetic flux-acting surface of a corresponding one of the permanent magnets. The d-axis part of the magnetic flux-acting surface of each of the permanent magnets is located on or adjacent to a corresponding d-axis that represents a center of the corresponding one of the magnetic poles.
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公开(公告)号：US20220200408A1
公开(公告)日：2022-06-23
申请号：US17692710
申请日：2022-03-11
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
Abstract: In a rotating electric machine, a cylindrical portion is provided on a radially inner side of a stator core. An opposing plate portion extends toward a radially outer side from the cylindrical portion. In a rotor, a magnet portion is fixed on an inner circumferential surface, a circular cylindrical portion is provided on the radially outer side of a stator winding, and a connecting portion extends toward the radially inner side. At least respective portions that oppose the magnet portion in the axial direction of the stator core, the circular cylindrical portion, and the connecting portion contain a magnetic material. A shield portion is provided in a portion that opposes the magnet portion in the axial direction of the opposing plate portion or on an end on the opposing plate portion side in the axial direction of the magnet portion. The shield portion contains a magnetic material.
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Patent Agency Ranking
公开(公告)号：US20220006357A1
公开(公告)日：2022-01-06
申请号：US17481514
申请日：2021-09-22
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI , Makoto TANIGUCHI
Abstract: A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.
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公开(公告)号：US20220006356A1
公开(公告)日：2022-01-06
申请号：US17481350
申请日：2021-09-22
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI , Makoto TANIGUCHI
Abstract: A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.
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公开(公告)号：US20220006339A1
公开(公告)日：2022-01-06
申请号：US17479860
申请日：2021-09-20
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
Abstract: A rotating electrical machine includes a magnetic field generator, and an armature that includes a multi-phase armature winding. The magnetic field generator includes a tubular cylindrical magnet carrier having opposing first and second peripheral surfaces and arranged to be coaxial with a rotating shaft attached to the rotor. The first peripheral surface of the magnet carrier is closer to the armature than the second peripheral surface is. The magnetic field generator includes a tubular cylindrical magnet holder having opposing first and second peripheral surfaces. The first peripheral surface of the magnet holder is closer to the armature than the second peripheral surface is. The tubular cylindrical magnet holder is secured to the first peripheral surface of the magnet carrier, and the magnets are secured to the first peripheral surface of the magnet holder. The magnet holder has a stacked configuration stacked in an axial direction of the rotating shaft.
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公开(公告)号：US20210384794A1
公开(公告)日：2021-12-09
申请号：US17410751
申请日：2021-08-24
Applicant: DENSO CORPORATION
Inventor： Akito TAMURA , Yuki TAKAHASHI , Kazuya IWASE
IPC: H02K3/52
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：US20210384789A1
公开(公告)日：2021-12-09
申请号：US17411318
申请日：2021-08-25
Applicant: DENSO CORPORATION
Inventor： Yuki MAWATARI , Akito TAMURA , Hiroyuki TSUCHIYA , Akira FUKUSHIMA , Yuki TAKAHASHI
Abstract: An armature which radially faces a magnetic field-producing unit equipped with a magnet unit having a plurality of magnetic poles includes a housing, an armature core, a multi-phase armature winding, and bus bars. The housing includes a cylinder and a disc-shaped end plate placed in contact with one of axially opposed ends of the cylinder. The armature core is disposed on a portion of the cylinder which radially faces the magnet unit. The armature winding is disposed on a portion of the armature core which radially faces the magnet unit. The bus bars electrically connect phase windings of the armature winding together. The armature also includes a bus bar module which is of a circular or C-shape extending along the circumference of the armature core. The bus bar module is secured to the cylinder, the end plate, or one of axially opposed ends of the armature core.
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