公开(公告)号：US20220094236A1

公开(公告)日：2022-03-24

申请号：US17489333

申请日：2021-09-29

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI

IPC分类号： H02K5/173 ,  H02K11/30 ,  H02K7/08 ,  H02K5/20

摘要： The rotating electric machine is provided with an inner ring fixed to a rotating shaft, an outer ring fixed to a base portion having a diameter larger than that of the inner ring, and a bearing that supports the rotating shaft. The base portion is provided with an insertion hole formed larger than the outer diameter of the outer ring, and the insertion hole accepting the rotating shaft penetrating therethrough. The outer ring is provided with an outer ring side flange portion protruding radially outside and being engaged with the base portion in the axial direction and fixed thereto. The outer ring side flange portion is provided in plural number in a circumferential direction at predetermined intervals. In the insertion hole, groove portions recessed radially outside at predetermined intervals in the circumferential direction is provided to fit with a shape of the outer ring side flange portion.

公开(公告)号：US20220021267A1

公开(公告)日：2022-01-20

申请号：US17488682

申请日：2021-09-29

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI ,  Yuta HASHIMOTO ,  Hideaki KURI

IPC分类号： H02K5/20 ,  H02K11/33 ,  H02K15/12 ,  H02K9/19

摘要： A rotating electric machine includes a housing member including a cylindrical portion. First and second electrical components are arranged in the circumferential direction along the cylindrical portion in a radial direction of the cylindrical portion. A coolant passage between an inlet portion and an outlet portion is formed in the cylindrical portion. The housing member includes a partition wall portion partitioning a portion of the coolant passage from the inlet portion to a specific position between the inlet portion and the outlet portion in the circumferential direction as an upstream-side path. The partition wall portion is separated in the radial direction from a wall portion of the cylindrical portion. The first electrical component is arranged on an inner side in the radial direction relative to the upstream-side path, and the second electrical component is arranged on the inner side in the radial direction relative to a downstream-side path.

公开(公告)号：US20220021249A1

公开(公告)日：2022-01-20

申请号：US17489414

申请日：2021-09-29

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI

IPC分类号： H02K1/04 ,  H02K1/20 ,  H02K9/19 ,  H02K21/22

摘要： Electrical conductor sections, which are mounted to a base member, have respective field-system-side peripheral surfaces thereof covered with a resin. The resin covering the field-system-side peripheral surfaces of the electrical conductor sections has two skin layers formed respectively on the surface side and the electrical-conductor-section side in the resin and a core layer formed between the two skin layers. The sum of radial thicknesses of the two skin layers is greater than a radial thickness of the core layer on a radial cross section of an armature. Alternatively, the entire resin covering the field-system-side peripheral surfaces of the electrical conductor sections is formed of a skin layer.

公开(公告)号：US20220014075A1

公开(公告)日：2022-01-13

申请号：US17481661

申请日：2021-09-22

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI ,  Makoto TANIGUCHI

IPC分类号： H02K9/22 ,  H02K5/18 ,  H02K1/28

摘要： 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.

公开(公告)号：US20210391761A1

公开(公告)日：2021-12-16

申请号：US17460913

申请日：2021-08-30

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI

IPC分类号： H02K1/27 ,  H02K21/14

摘要： A rotating electric machine includes a field element and an armature. The field element includes a magnet portion that includes a plurality of magnets arranged in an array in a circumferential direction. In the magnet, an easy axis of magnetization is oriented in a circular arc shape such that, on a d-axis side closer to a d-axis that is a magnetic pole center, the orientation of the easy axis of magnetization is parallel to the d-axis compared to a q-axis side closer to a q-axis that is a magnetic pole boundary, and a circular-arc-shaped magnet magnetic path is formed along the easy axis of magnetization. The magnet is formed into a circular arc shape when viewed from an axial direction of the rotor, and is provided with a first reference surface that is a planar surface and a second reference surface that is parallel to the first reference surface.

公开(公告)号：US20210384782A1

公开(公告)日：2021-12-09

申请号：US17411304

申请日：2021-08-25

申请人： DENSO CORPORATION

发明人： Hiroyuki TSUCHIYA ,  Shinji KODA ,  Yuki TAKAHASHI ,  Kazuya IWASE ,  Akito TAMURA

IPC分类号： H02K1/27 ,  H02K11/33 ,  H02K3/47

摘要： The rotating electric machine includes a stator having a stator winding and a rotor facing the stator in a radial direction. The rotor includes a carrier having a disk-shaped end plate section fixed to a rotating shaft and arranged coaxially with the rotating shaft, and an annular magnet unit arranged coaxially with the rotating shaft. The magnet has a cylindrical magnet holder whose one end in an axial direction is fixed to the end plate section, and a magnet fixed to a peripheral surface on a stator side in the radial direction in the magnet holder and having an alternating polarity in a circumferential direction. The magnet holder is made of a non-magnetic material. In the magnet, an orientation of an axis of easy magnetization on a q-axis is deviated from an orientation parallel to the q-axis.

公开(公告)号：US20210249916A1

公开(公告)日：2021-08-12

申请号：US17245847

申请日：2021-04-30

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI ,  Kazuya IWASE ,  Hidemasa OTSUBO

IPC分类号： H02K1/27 ,  H02K1/28 ,  H02K3/28

摘要： In a rotating electric machine, a field element includes: a circular annular magnet portion that includes magnetic poles of which polarities alternate in a circumferential direction; and a cylindrical magnet holding portion where the magnet portion is fixed on an inner circumferential surface of the magnet portion. An armature is arranged to oppose the magnet portion on an inner side in a radial direction of the magnet portion. The magnet portion includes circular-arc-shaped magnets arranged in an array in the circumferential direction. In each magnet, both end surfaces in the circumferential direction are along the radial direction and in contact with a magnet adjacent in the circumferential direction. The magnet holding portion is reduced in size such that, in a state where the magnets are arrayed in the circumferential direction, an outer circumference of the magnets is reduced from an outer side toward an inner side in the radial direction.

公开(公告)号：US20200331343A1

公开(公告)日：2020-10-22

申请号：US16915348

申请日：2020-06-29

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI ,  Ryo TANIE

IPC分类号： B60K17/08 ,  B60K17/16 ,  B60K1/04 ,  F16H48/08 ,  F16H1/28 ,  F16H37/08 ,  F16H57/04 ,  H02K5/20 ,  H02K7/00 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  H02K21/22

摘要： A rotating electrical machine includes a cylindrical rotor and a cylindrical stator. The rotor includes a magnet portion. The stator includes a multiple-phase stator winding. The rotor and the stator are arranged in a state in which the magnet portion and the stator winding oppose each other inward and outward in a radial direction. A differential apparatus includes a differential case, side gears, and a pinion gear. The differential case rotates with a rotation of a rotor. The side gears are housed in the differential case and respectively connected to the pair of axles. The pinion gear is housed in the differential case and mutually meshes with the side gears. The differential apparatus is concentrically arranged with the rotor in a hollow portion provided on an inner side in a radial direction of a magnetic circuit portion configured by the rotor and the stator in the rotating electrical machine.

公开(公告)号：US20200328639A1

公开(公告)日：2020-10-15

申请号：US16914570

申请日：2020-06-29

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI

IPC分类号： H02K1/27 ,  H02K7/08 ,  H02K5/04 ,  H02K7/00

摘要： A rotating electrical machine includes a magnetic field-producing unit equipped with a magnet unit including a plurality of magnetic poles, and an armature which includes a multi-phase armature winding. The armature winding has conductor portions which are arranged at a given interval away from each other in a circumferential direction. The armature is designed to have conductor-to-conductor members arranged between the conductor portions in the circumferential direction. The armature may alternatively be designed not to have the conductor-to-conductor members disposed between the conductor portions in the circumferential direction. The magnet unit is magnetically oriented to have an easy axis of magnetization which is directed in a region close to a d-axis that is a center of a magnetic pole to be more parallel to the d-axis than that in a region close to a q-axis that is a boundary between magnetic poles.

公开(公告)号：US20190157954A1

公开(公告)日：2019-05-23

申请号：US16305847

申请日：2017-06-01

申请人： DENSO CORPORATION

发明人： Yuki TAKAHASHI ,  Tomokazu HISADA

IPC分类号： H02K21/04

摘要： A rotor of a rotating electric machine includes a field core having a cylindrical boss portion, and a plurality of claw-shaped magnetic pole portions that are arranged on the outer side of the boss portion and form poles of alternately different polarities in the circumferential direction, a field winding that is wound around the outer periphery of the boss portion and generates a magnetomotive force by energization, a permanent magnet disposed between the circumferentially adjacent claw-shaped magnetic pole portions so as to have its easy axis of magnetization oriented in the circumferential direction and have its polarity coincide with the polarity of the claw-shaped magnetic pole portions which alternately appears by excitation, and a magnetic flux short circuit member having a short circuit portion that magnetically connects the claw-shaped magnetic pole portions circumferentially arranged to have different polarities.