公开(公告)号：US20240339879A1

公开(公告)日：2024-10-10

申请号：US18748532

申请日：2024-06-20

Applicant: Denso Corporation

Inventor： Toshio YAMAMOTO ,  Yuji Hayashi

IPC: H02K3/04

CPC classification number: H02K3/04

Abstract: A coil assembly includes: a band member formed of an electrically-insulative material into a band shape and rolled along a circumferential direction; and a plurality of coils formed of an electroconductive material on the band member and arranged in alignment with each other along the circumferential direction. The plurality of coils have a plurality of paths through which electric current flows and which constitute parts of a closed circuit. The coil assembly also includes first and second connection portions. The first connection portion constitutes a part of the closed circuit and connects between the plurality of paths. The second connection portion constitutes another part of the closed circuit and connects between the plurality of paths so that induced currents, which are induced in the closed circuit by electromagnetic induction due to movement of magnets in the circumferential direction, are canceled out by each other in the closed circuit.

公开(公告)号：US20240413689A1

公开(公告)日：2024-12-12

申请号：US18811988

申请日：2024-08-22

Applicant: Denso Corporation

Inventor： Toshio YAMAMOTO ,  Yuji Hayashi ,  Yusuke Tateishi ,  Shinji Makita ,  Keisuke Koide

IPC: H02K3/04 ,  H02K3/32

Abstract: A coil assembly includes a strip member having a width in an axial direction, a length in a circumferential direction, and a thickness in a radial direction of a coil assembly. The strip is rolled in the circumferential direction into a plurality of turns stacked on one another. The coil group includes a plurality of coils made from an electrically conductive material. The coils are arranged in a length direction of the strip. Each of the coils is shaped, to have an open end facing in a first width direction and a closed end facing in a second width direction opposite the first width direction. Two of the coils arranged adjacent each other in the length direction of the strip are connected in a preselected way on a first width end facing away from a second width end portion of the strip in the first width direction.

公开(公告)号：US20240388157A1

公开(公告)日：2024-11-21

申请号：US18785292

申请日：2024-07-26

Applicant: DENSO CORPORATION

Inventor： Toshio YAMAMOTO ,  Yuji HAYASHI

IPC: H02K3/28 ,  H02K3/32 ,  H02K3/46

Abstract: A coil assembly includes a plurality of strip members which are rolled or wound in a circumferential direction of the coil assembly. The strip members have at least portions overlapping each other in a radial direction of the coil assembly and stacked on one another in the radial direction of the coil assembly. The strip members have a plurality of coils disposed thereon. The coil assembly also has a thin-walled portion and thick-walled portions. The thin-walled portion is defined by a portion of the strip members and has a first thickness in the radial direction. The thick-walled portions are defined by portions of the strip members and have a second thickness in the radial direction which is greater than the first thickness. The thick-walled portions are arranged away from each other in the circumferential direction.

公开(公告)号：US20240305154A1

公开(公告)日：2024-09-12

申请号：US18666400

申请日：2024-05-16

Applicant: DENSO CORPORATION

Inventor： Toshio YAMAMOTO ,  Yuji HAYASHI

IPC: H02K3/26 ,  H02K23/26

CPC classification number: H02K3/26 ,  H02K23/26

Abstract: A stator includes a stator core, a coil assembly and a coil assembly support member. The coil assembly has a band member rolled along a circumferential direction into an annular shape, a coil formed on the band member, and a coil-assembly-side recess formed in the band member. The coil assembly support member is provided between the stator core and the coil assembly and mounted to the stator core. The coil assembly support member has a support-member-side protrusion. The coil assembly is positioned with respect to the stator core through engagement between the support-member-side protrusion and the coil-assembly-side recess.

公开(公告)号：US20240235311A1

公开(公告)日：2024-07-11

申请号：US18616546

申请日：2024-03-26

Applicant: DENSO CORPORATION

Inventor： Yuji HAYASHI ,  Toshio YAMAMOTO ,  Yusuke TATEISHI

IPC: H02K3/47 ,  H02K1/278 ,  H02K21/14

CPC classification number: H02K3/47 ,  H02K1/278 ,  H02K21/14 ,  H02K2203/12

Abstract: A stator includes an armature core having an annular shape, coils, and an insulator. The coils are arranged along the armature core. Each of the coils is a wound conductive winding. Each of the coils includes a pair of facing portions disposed to be aligned in a circumferential direction with a predetermined interval therebetween. The first and second facing portions of each of the coils constitute intermediate portions of the corresponding one of the coils. Each of the coils includes a pair of first and second coil end portions that link the facing portions to each other. The insulator is arranged between the stator core and the coils. The insulator includes a base comprised of an insulating material, and one or more soft-magnetic members each being comprised of a soft-magnetic material, the one or more soft-magnetic members being contained in the base.