公开(公告)号：US20210384798A1

公开(公告)日：2021-12-09

申请号：US17340111

申请日：2021-06-07

Applicant: NIDEC TOSOK CORPORATION

Inventor： Hiroshi SHIRAI ,  Kohei OSUGA ,  Kenichi OZAWA

IPC: H02K7/116 ,  H02K7/00 ,  H02K11/33 ,  H02K7/08

Abstract: An electric actuator of the disclosure includes a motor, a speed reduction mechanism, and a bearing fixed to a motor shaft having an eccentric axis portion. The speed reduction mechanism has: an externally toothed gear, an internally toothed gear, a facing member facing the externally toothed gear, column members protruding from one member of the facing member and the externally toothed gear toward the other member and surrounding the motor axis, and at least one tube member surrounding the column members. The other member has hole portions surrounding the motor axis. The column members are inserted into the hole portions respectively, and support the externally toothed gear to be swingable around the motor axis via an inner side surface of each of the hole portions. The at least one tube member surrounds the column members in the hole portions and is rotatable around a rotary axis passing through the hole portions.

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：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：US20180283524A1

公开(公告)日：2018-10-04

申请号：US15936530

申请日：2018-03-27

Applicant: Nidec Tosok Corporation

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

IPC: F16H57/027 ,  H02K5/10 ,  H02K5/173

CPC classification number: F16H57/027 ,  H02K5/10 ,  H02K5/15 ,  H02K5/1732 ,  H02K7/116 ,  H02K2205/09

Abstract: There is provided a breather structure of an actuator in which the breather structure is provided in a housing of the actuator, the breather structure including: a recessed groove positioned on an outer surface of the housing; a breathing hole which is positioned on a bottom surface of the recessed groove and passes through the housing in a first direction; a filter fixed to an inside of the housing so that the filter closes an opening of the breathing hole; a lid body which partially covers a region of the recessed groove including the breathing hole from an outside of the housing when viewed from the first direction; a breather opening portion positioned at a portion of the recessed groove exposed from the lid body; and a protrusion portion which protrudes from the bottom surface of the recessed groove to a side of the lid body.