公开(公告)号：US20190207462A1

公开(公告)日：2019-07-04

申请号：US16234529

申请日：2018-12-27

Applicant: NIDEC TOSOK CORPORATION

Inventor： Yutaka UEMATSU ,  Shun KATO ,  Ryunosuke OIKAWA ,  Yuzo AKASAKA ,  Kazumi SHINKAI

IPC: H02K3/50 ,  H02K5/08 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K7/116 ,  H02K11/215 ,  H02K21/14 ,  F16H61/32 ,  F16H61/00 ,  F16H57/02

Abstract: An electric actuator includes: a motor unit; a speed reducer; a circuit board; a busbar; and a housing. The housing has a motor case and a circuit board case attached to one side of the motor case in an axial direction. The circuit board case has a bottom wall blocking an opening of the motor case. The bottom wall has a bottom wall through-hole that penetrates through the bottom wall in the axial direction on an outer side beyond the speed reducer in the radial direction. A busbar has a busbar main body section, a coil line connecting section to which a coil line extending on one side in the axial direction from a coil is connected, and a connection terminal section. The connection terminal section extends to one side of the bottom wall in the axial direction via the bottom wall through-hole and is connected to the circuit board.

公开(公告)号：US20180202547A1

公开(公告)日：2018-07-19

申请号：US15869114

申请日：2018-01-12

Applicant: Nidec Tosok Corporation

Inventor： Hiroshi TATSUTA ,  Kazumi SHINKAI ,  Shun KATO ,  Shuichi KINJO ,  Kohei OSUGA

IPC: F16H61/32 ,  F16H61/02 ,  F16H63/50 ,  F16H61/00

CPC classification number: F16H61/32 ,  F16H61/0031 ,  F16H61/0297 ,  F16H63/3416 ,  F16H63/3425 ,  F16H63/3466 ,  F16H63/3475 ,  F16H63/3483 ,  F16H63/502 ,  H02K5/06

Abstract: An actuator apparatus includes an oil passage body including an oil passage therein, an electric actuator, a movable unit moved at least in a first direction and a second direction by the electric actuator, and an auxiliary device including an actuating member moved by hydraulic pressure of oil in the oil passage. When the electric actuator moves the movable unit in the second direction, the auxiliary device applies, through the actuating member to the movable unit, a force pointing in a direction that moves the movable unit in the second direction.

公开(公告)号：US20210083550A1

公开(公告)日：2021-03-18

申请号：US17013820

申请日：2020-09-07

Applicant: NIDEC TOSOK CORPORATION

Inventor： Shun KATO

IPC: H02K7/116 ,  H02K5/173 ,  H02K7/08 ,  H02K11/21

Abstract: An electric actuator includes: a motor part including a motor shaft extending in an axial direction; a deceleration mechanism connected to one axial side of the motor shaft; an output part including an output shaft to which rotation of the motor shaft is transmitted via the deceleration mechanism; and a housing accommodating the motor part, the deceleration mechanism, and the output part. A ratio between a first distance from a meshing position where a first meshing part meshes with a second meshing part to a central axis of the motor shaft, and a second distance from the meshing position to a central axis of the output shaft, when viewed along the axial direction, changes in at least a portion of a range from a first rotation angle to a second rotation angle of the output shaft.

公开(公告)号：US20200036266A1

公开(公告)日：2020-01-30

申请号：US16497896

申请日：2018-03-20

Applicant: Nidec Tosok Corporation

Inventor： Yutaka UEMATSU ,  Kazumi SHINKAI ,  Shun KATO ,  Shuichi KINJO ,  Kohei OSUGA ,  Tadayuki HATSUDA

IPC: H02K11/215 ,  H02K7/00 ,  H02K7/116

Abstract: An electric actuator includes a motor portion that includes a motor including a motor shaft extending axially, a decelerator that is joined to one axial side of the motor shaft, and an output portion that includes an output shaft to which rotation of the motor shaft is transmitted via the decelerator. The output shaft includes a joint portion joined to a driven shaft, the output portion includes a sensor magnet and a magnet holder which holds the sensor magnet, and the magnet holder is indirectly joined to the output shaft and is fixed to the driven shaft.

公开(公告)号：US20190207475A1

公开(公告)日：2019-07-04

申请号：US16234602

申请日：2018-12-28

Applicant: NIDEC TOSOK CORPORATION

Inventor： Yutaka UEMATSU ,  Shun KATO ,  Ryunosuke OIKAWA ,  Yuzo AKASAKA ,  Kazumi SHINKAI

IPC: H02K7/116 ,  H02K5/08 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K11/215 ,  H02K21/14 ,  F16H19/00 ,  F16H57/02

CPC classification number: H02K7/116 ,  F16H1/32 ,  F16H19/001 ,  F16H57/02 ,  F16H61/32 ,  F16H2001/325 ,  F16H2057/02034 ,  H02K5/08 ,  H02K5/1732 ,  H02K5/225 ,  H02K7/083 ,  H02K11/215 ,  H02K21/14 ,  H02K2211/03

Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing accommodating the motor unit, the speed reducer and the output section. The motor shaft and the output shaft are disposed apart from each other in the radial direction of the motor shaft. The motor unit has a first bearing that rotatably supports the motor shaft. The housing has a housing main body formed of resin, and a metal member formed of metal and held by the housing main body. The metal member has a bearing holding section that holds the first bearing, and an output shaft support section that supports the output shaft.

公开(公告)号：US20190207471A1

公开(公告)日：2019-07-04

申请号：US16234487

申请日：2018-12-27

Applicant: NIDEC TOSOK CORPORATION

Inventor： Yutaka UEMATSU ,  Shun KATO ,  Ryunosuke OIKAWA ,  Yuzo AKASAKA ,  Kazumi SHINKAI

IPC: H02K7/116 ,  H02K5/08 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K11/215 ,  H02K21/14 ,  F16H57/02

Abstract: An electric actuator attached to a vehicle is provided and includes: a motor unit, a speed reducer, a circuit board, an output section, and a housing that accommodates the motor unit, the speed reducer, the circuit board and the output section. The housing has a motor case that opens at one side in an axial direction, and a circuit board case attached to one side of the motor case in the axial direction to close an opening of the motor case and accommodates the circuit board. The motor case has a motor case main body that accommodates the motor unit, and multiple attaching leg sections protruding from the motor case main body and fixed to the vehicle. The attaching leg sections protrude outward from the circuit board case when seen in the axial direction.

公开(公告)号：US20190207473A1

公开(公告)日：2019-07-04

申请号：US16234591

申请日：2018-12-28

Applicant: NIDEC TOSOK CORPORATION

Inventor： Shun KATO ,  Yutaka UEMATSU ,  Tadayuki HATSUDA ,  Yuzo AKASAKA

IPC: H02K7/116 ,  H02K5/08 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K11/215 ,  H02K21/14 ,  F16H63/34

CPC classification number: H02K7/116 ,  F16H63/3466 ,  G01D5/14 ,  H02K5/08 ,  H02K5/1732 ,  H02K5/225 ,  H02K7/083 ,  H02K11/215 ,  H02K21/14 ,  H02K2211/03

Abstract: An electric actuator includes: a motor part, having a motor shaft that extends in an axial direction and is rotated in both directions; a deceleration mechanism, connected to the motor shaft; a circuit board, electrically connected to the motor part; an output part, having an output shaft to which rotation of the motor shaft is transmitted through the deceleration mechanism; a sensor magnet, attached to the motor shaft; and a motor part sensor, detecting a magnetic field of the sensor magnet and detecting rotation of the motor shaft. The motor part has a rotor magnet that is fixed to the motor shaft. The rotor magnet and the sensor magnet each have multiple magnetic poles in a circumferential direction around the motor shaft. The magnetic poles of the rotor magnet and the magnetic poles of the sensor magnet are disposed to be shifted from each other in the circumferential direction.

公开(公告)号：US20200099270A1

公开(公告)日：2020-03-26

申请号：US16579876

申请日：2019-09-24

Applicant: NIDEC TOSOK CORPORATION

Inventor： Shun KATO ,  Youngdae KANG ,  Hiroaki TAKAHASHI

IPC: H02K5/22 ,  F16H61/32 ,  H02K7/116

Abstract: An electric actuator includes a motor portion, a circuit board, a speed reduction mechanism, a busbar holder that holds a busbar, and a housing. The housing has a motor case and a compartmental wall. The compartmental wall has a through-hole which penetrates the compartmental wall in an axial direction. The busbar holder has a base portion and a projecting portion which projects from the base portion in the axial direction and is disposed in the through-hole. An end portion of the busbar at one side projects from the busbar holder toward one side in the axial direction and is connected to the circuit board, and an end portion of the busbar at the other side projects into the through-hole from a side surface of the projecting portion of the busbar holder and is connected to a coil of a stator.

公开(公告)号：US20200014284A1

公开(公告)日：2020-01-09

申请号：US16492963

申请日：2018-03-19

Applicant: Nidec Tosok Corporation

Inventor： Yutaka UEMATSU ,  Tadayuki HATSUDA ,  Kazumi SHINKAI ,  Shun KATO ,  Shuichi KINJO ,  Fumito TAMURA

IPC: H02K11/215 ,  H02K7/116

Abstract: An electric actuator includes a motor that includes a motor shaft extending axially, a decelerator that is joined to one axial side of the motor shaft, an output that includes an output shaft to which rotation of the motor shaft is transmitted via the decelerator, and a control board that is electrically connected to at least the motor. The motor and the output are disposed radially side by side with respect to the motor, the control board extends from a position axially overlapping the motor shaft to a position axially overlapping the output shaft, and the control board includes a motor sensor that detects a rotation angle of the motor shaft, and an output sensor that detects a rotation angle of a driven shaft joined to the output shaft.

公开(公告)号：US20190207474A1

公开(公告)日：2019-07-04

申请号：US16234596

申请日：2018-12-28

Applicant: NIDEC TOSOK CORPORATION

Inventor： Yutaka UEMATSU ,  Shun KATO ,  Ryunosuke OIKAWA ,  Yuzo AKASAKA ,  Kazumi SHINKAI

IPC: H02K7/116 ,  H02K5/08 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K11/215 ,  H02K21/14 ,  F16H57/02 ,  F16H19/00

CPC classification number: H02K7/116 ,  F16H1/32 ,  F16H19/001 ,  F16H57/02 ,  F16H61/32 ,  F16H2001/325 ,  F16H2057/02034 ,  H02K5/08 ,  H02K5/1732 ,  H02K5/225 ,  H02K7/083 ,  H02K11/215 ,  H02K21/14 ,  H02K2211/03

Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing configured to accommodate the motor unit, the speed reducer and the output section. The output shaft extends in the axial direction of the motor shaft. The housing has a housing main body with a polygonal shape when seen in the axial direction. The motor shaft and the output shaft are disposed to be arranged along a diagonal line of the housing main body when seen in the axial direction. The output shaft is disposed on a corner portion of the housing main body when seen in the axial direction.