公开(公告)号：US20240258856A1

公开(公告)日：2024-08-01

申请号：US18615962

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  JASPER PENG

IPC: H02K1/2798 ,  H02K9/06 ,  H02K15/03 ,  H02K21/24

CPC classification number: H02K1/2798 ,  H02K9/06 ,  H02K15/03 ,  H02K21/24

Abstract: A motor device includes a motor housing, a coil portion, and a coil protection portion. The motor housing includes a housing main body and a displacement restriction portion. The displacement restriction portion extends from the housing main body toward a radially inner side to enter between two coil bodies adjacent to each other in a circumferential direction. The coil protection portion includes a protection outer peripheral portion. The protection outer peripheral portion is provided between the coil body and the displacement restriction portion. The protection outer peripheral portion extends along a displacement restriction surface in the circumferential direction and an axial direction. The displacement restriction portion is in a state of being caught by the coil body via the protection outer peripheral portion, thereby forming displacement of the coil body.

公开(公告)号：US20240258852A1

公开(公告)日：2024-08-01

申请号：US18615879

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  TAKASHI MAKINO

IPC: H02K1/2793

CPC classification number: H02K1/2793

Abstract: A rotor includes a magnet unit, a magnet holder, a fixing block, and a magnet fixing tool. The magnet holder includes a holder main body, an outer peripheral engagement portion, and a holder receiving portion. The magnet unit has an inner peripheral tapered surface and an outer peripheral tapered surface. In the magnet unit, the outer peripheral tapered surface is in a state of being caught by the outer peripheral engagement portion. The inner peripheral tapered surface is inclined with respect to the motor axis to face an axial gap. The inner peripheral tapered surface is caught by the fixing block. In the fixing block, the block tapered surface is in a state of being overlapped with the inner peripheral tapered surface.

公开(公告)号：US20240258884A1

公开(公告)日：2024-08-01

申请号：US18615974

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  RYOHEI OBA ,  YUKI TAKAHASHI

IPC: H02K11/225 ,  H02K3/52 ,  H02K21/24

CPC classification number: H02K11/225 ,  H02K3/52 ,  H02K21/24

Abstract: A motor device includes a stator, a rotor, a shaft, an electric power busbar, and a resolver. The shaft includes a shaft main body that rotates together with the rotor. The electric power busbar is provided at a position away from the shaft main body toward a radially outer side. The electric power busbar extends in an annular shape in a circumferential direction. The resolver is provided on the shaft main body and detects a rotation angle of the shaft main body. The resolver is provided at a position away from the electric power busbar toward a radially inner side. The resolver is in a state of entering between the electric power busbar and the shaft main body.

公开(公告)号：US20240258867A1

公开(公告)日：2024-08-01

申请号：US18615814

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA

IPC: H02K5/10 ,  H02K1/2798 ,  H02K3/52 ,  H02K5/20 ,  H02K9/06 ,  H02K21/24

CPC classification number: H02K5/10 ,  H02K1/2798 ,  H02K3/522 ,  H02K5/207 ,  H02K9/06 ,  H02K21/24 ,  H02K2203/06

Abstract: A motor device includes a motor housing, a rear frame, and a motor seal portion. The motor seal portion is sandwiched between the motor housing and the rear frame, and closes a gap between the motor housing and the rear frame. The motor seal portion is held in a state of being sandwiched between a motor seal holding portion and a rear frame holding portion. The motor seal holding portion is included in the motor housing. The rear frame holding portion is provided in the rear frame. A motor outer peripheral surface and a rear frame outer peripheral surface are arranged continuously in an axial direction. The motor outer peripheral surface is provided on a radially outer side of the motor seal holding portion.

公开(公告)号：US20240258860A1

公开(公告)日：2024-08-01

申请号：US18615717

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA

IPC: H02K3/28 ,  H02K7/08 ,  H02K16/02

CPC classification number: H02K3/28 ,  H02K7/083 ,  H02K16/02 ,  H02K2203/09

Abstract: A motor device includes a stator and a rotor. The stator and rotor are aligned in an axial direction. The stator includes a coil. The motor device includes a busbar unit. The busbar unit includes an electric power busbar and a busbar protection portion. The electric power busbar is electrically connected to the coil. The busbar protection portion protects the electric power busbar. The motor device includes a neutral point busbar. The neutral point busbar is electrically connected to a neutral point of the coil. The neutral point busbar is provided at a position separated from the busbar protection portion.

公开(公告)号：US20240258855A1

公开(公告)日：2024-08-01

申请号：US18615946

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  JASPER PENG

IPC: H02K1/2798 ,  H02K7/00 ,  H02K9/06 ,  H02K21/24

CPC classification number: H02K1/2798 ,  H02K7/003 ,  H02K9/06 ,  H02K21/24

Abstract: A motor device includes a motor housing, a stator, and a rotor. An axial gap is formed between the stator and the rotor. An internal space of the motor housing includes a stator region, an opposite region, and an outer peripheral region. In the axial gap, a gap outer peripheral end communicates with the opposite region through the outer peripheral region. A holder adjustment hole, a holder center hole, and the like are formed in the rotor. In the axial gap, a gap inner peripheral end communicates with the opposite region through the holder adjustment hole, the holder center hole, and the like.

公开(公告)号：US20240258854A1

公开(公告)日：2024-08-01

申请号：US18615893

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  KENTA GOTO ,  YUKI TAKAHASHI

IPC: H02K1/2798 ,  H02K9/06 ,  H02K15/03 ,  H02K21/24

CPC classification number: H02K1/2798 ,  H02K9/06 ,  H02K15/03 ,  H02K21/24

Abstract: Multiple magnet units are provided in a rotor. Each of the magnet units includes multiple magnets. In the magnet unit, the multiple magnets are arranged in a circumferential direction. An outer surface of the magnet includes a first magnet surface. The magnet includes multiple magnet pieces stacked in a light direction. An outer surface of the magnet piece includes a first piece surface. The first magnet surface extends in a planar shape to span the multiple magnet pieces. The first magnet surface has multiple first piece surfaces. In the first magnet surface, the multiple first piece surfaces are flush with one another.

公开(公告)号：US20240258894A1

公开(公告)日：2024-08-01

申请号：US18615970

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  YU KUWAHARA

IPC: H02K21/24 ,  H02K3/50

CPC classification number: H02K21/24 ,  H02K3/50

Abstract: A motor device includes a motor housing, a stator, an electric power lead-out wire, and a first rotor. The motor housing accommodates the stator and the first rotor. The stator includes a coil portion. The electric power lead-out wire is led out from the coil portion. The electric power lead-out wire includes a rising avoidance portion. The rising avoidance portion extends in an axial direction passing between the first rotor and a motor inner peripheral surface. The rising avoidance portion is flat such that a thickness dimension in a radial direction is smaller than a width dimension in a circumferential direction. In the rising avoidance portion, an avoidance outer surface faces the motor inner peripheral surface.

公开(公告)号：US20240258885A1

公开(公告)日：2024-08-01

申请号：US18615966

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA ,  TSUYOSHI GODA

IPC: H02K11/25 ,  H02K1/2798 ,  H02K3/52 ,  H02K21/24

CPC classification number: H02K11/25 ,  H02K1/2798 ,  H02K3/522 ,  H02K21/24 ,  H02K2203/09 ,  H02K2203/12

Abstract: A motor device includes a motor housing, a stator coil, and a temperature sensor. The motor housing accommodates the stator coil and the temperature sensor. In the motor housing, motor fins are provided on a motor outer peripheral surface. The motor fins are provided on a radially outer side of the stator coil. The temperature sensor is provided on a radially inner side of the stator coil. In the motor device, heat radiation of the stator coil toward the radially outer side is accelerated by the motor fins such that heat radiated from the stator coil toward the radially outer side is more than heat radiated from the stator coil toward the radially inner side.

公开(公告)号：US20240258865A1

公开(公告)日：2024-08-01

申请号：US18615956

申请日：2024-03-25

Applicant: DENSO CORPORATION

Inventor： WATARU NIWA

IPC: H02K3/52 ,  H02K21/24

CPC classification number: H02K3/522 ,  H02K21/24 ,  H02K2203/06

Abstract: A motor device includes a motor housing, an electric power lead-out wire, a grommet, and a first rotor. The electric power lead-out wire is led out from a coil and is electrically connected to an electric power busbar. The electric power lead-out wire includes an outer peripheral lead-out portion and an intersection lead-out portion. The outer peripheral lead-out portion is provided on an outer peripheral side of the first rotor and extends along an inner peripheral surface in an axial direction. The intersection lead-out portion extends in a direction intersecting the outer peripheral lead-out portion. The grommet includes an outer grommet portion and an inner grommet portion. The outer grommet portion enters between the outer peripheral lead-out portion and the inner peripheral surface in a radial direction, and extends further toward the electric power busbar than the outer peripheral lead-out portion in the axial direction.