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公开(公告)号：US20200251956A1
公开(公告)日：2020-08-06
申请号：US16716506
申请日：2019-12-17
发明人： Shuichi KINJO , Hiroshi SHIRAI , Yutaka UEMATSU
摘要： An electric actuator according to an aspect of the disclosure includes: a motor including a rotor having a motor shaft extending along a central axis and a stator facing the rotor in a radial direction; and a deceleration mechanism which is disposed on a side of the stator in an axial direction and connected to the motor shaft. The motor shaft includes an eccentric shaft part with an eccentric axis, which is eccentric with respect to the central axis, as a center, and the eccentric shaft part is connected with the deceleration mechanism. The eccentric shaft part includes a balance concave part disposed on an end part of the eccentric shaft part in a predetermined direction which is in a radial direction from the central axis toward the eccentric axis. The balance concave part is recessed from an outer surface of the eccentric shaft part.
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公开(公告)号：US20200244132A1
公开(公告)日：2020-07-30
申请号：US16745363
申请日：2020-01-17
发明人： Shuichi KINJO , Hiroshi SHIRAI , Yutaka UEMATSU
摘要： An electric actuator includes a motor which has a rotor having a motor shaft and a stator, a motor case for housing the motor, and a deceleration mechanism coupled to the motor shaft. The motor case has a case cylinder portion and a lid. The lid has a top plate portion, an outer cylinder portion, an inner cylinder portion, an annular groove portion, and an annular seal member. An axial length of the outer cylinder portion is larger than an axial length of the inner cylinder portion. An inner diameter of the annular seal member is smaller than an outer diameter of the inner cylinder portion in a state that the annular seal member is removed from the lid. The annular seal member is housed in the annular groove portion in a state of being in contact with an outer peripheral surface of the inner cylinder portion.
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公开(公告)号：US20200036266A1
公开(公告)日：2020-01-30
申请号：US16497896
申请日：2018-03-20
发明人： Yutaka UEMATSU , Kazumi SHINKAI , Shun KATO , Shuichi KINJO , Kohei OSUGA , Tadayuki HATSUDA
IPC分类号： H02K11/215 , H02K7/00 , H02K7/116
摘要： 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.
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公开(公告)号：US20160348783A1
公开(公告)日：2016-12-01
申请号：US15166396
申请日：2016-05-27
发明人： Kazumi SHINKAI , Shuichi KINJO
IPC分类号： F16H59/08
CPC分类号： F16H59/08 , F16H1/32 , F16H61/32 , F16H2001/325 , F16H2059/081 , F16H2061/2892 , F16H2061/326 , H02K7/116
摘要： A shift range switching device of a vehicle includes a fixing member provided in a vicinity of an external-toothed gear, an electric motor, an eccentric shaft provided on an output shaft, the external-toothed gear rotatably supported by the eccentric shaft, and a ring-shaped double-toothed gear provided on an outer circumference of the external-toothed gear. The shift range switching device includes internal teeth defined on an inner circumference of the double-toothed gear and engaged with external teeth of the external-toothed gear and the external-toothed gear defined on an outer circumference of the double-toothed gear and engaged with an output gear. The shift range switching device includes a restriction portion provided on one of the external-toothed gear and the fixing member and a restricted portion provided on the other of the external-toothed gear and the fixing member and engaged with the restriction portion.
摘要翻译： 车辆的变速范围切换装置包括：设置在外齿轮附近的固定部件，电动马达，设置在输出轴上的偏心轴，由偏心轴可旋转地支撑的外齿轮，以及 环形双齿齿轮设置在外齿轮的外圆周上。 变速范围切换装置包括限定在双齿齿轮的内周上的内齿，并与外齿齿轮的外齿和限定在双齿齿轮的外圆周上的外齿齿轮啮合， 输出齿轮 变速范围切换装置包括设置在外齿轮和定影部件中的一个上的限制部分和设置在另一个外齿齿轮和固定部件上并与限制部分接合的限制部分。
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公开(公告)号：US20200251958A1
公开(公告)日：2020-08-06
申请号：US16737881
申请日：2020-01-08
发明人： Shuichi KINJO , Hiroshi SHIRAI , Yutaka UEMATSU
摘要： An electric actuator includes a motor including a rotor having a motor shaft extending along a central axis and a stator, a deceleration mechanism connected to the motor shaft, an output shaft, a first bearing, a second bearing, and a deceleration mechanism case. The first bearing is fitted on an eccentric axis part of the motor shaft. The deceleration mechanism includes an internal gear in a ring shape, an external gear connected to the eccentric axis part, and an output flange part which transmits rotation of the external gear around the central axis to the output shaft. The deceleration mechanism case includes a case body and a cup member. The cup member includes a first cylinder part to which the internal gear is fitted on the radial-direction inner side, and a second cylinder part to which the second bearing is fitted on the radial-direction inner side.
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公开(公告)号：US20200007010A1
公开(公告)日：2020-01-02
申请号：US16441012
申请日：2019-06-14
发明人： Hiroshi SHIRAI , Yutaka UEMATSU , Kazuhiro SAITO , Shuichi KINJO , Toshihiko AKIBA , Koichi ISHIGE
IPC分类号： H02K11/215 , H02K7/00 , H02K7/116 , H02K5/04
摘要： One aspect of an electric actuator of the disclosure includes: a motor having a motor shaft rotating about a central axis; a speed reduction mechanism connected to a portion on one side in an axial direction of the motor shaft; a case accommodating the motor and the speed reduction mechanism; an output part to which rotation of the motor shaft is transmitted via the speed reduction mechanism; a rotation detector having a rotation sensor detecting rotation of the output part; and a wiring member electrically connected with the rotation sensor. The case has a first concave part located on an outer surface of the case. One end part of the wiring member penetrates the case from inside the case and protrudes inside the first concave part. The rotation sensor is located inside the first concave part and connected with one end part of the wiring member.
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公开(公告)号：US20200007002A1
公开(公告)日：2020-01-02
申请号：US16441007
申请日：2019-06-14
发明人： Hiroshi SHIRAI , Shuichi KINJO , Kazuhiro SAITO
摘要： An electric actuator includes: a motor; a first case accommodating the motor; a second case located on one side in an axial direction of the first case; a bearing holder fixed to the first case; and a first bearing held by the bearing holder. The first case has a wall part covering the other side in the axial direction of a stator and having a through hole. The bearing holder has: a holder cylindrical part holding the first bearing and inserted into the through hole; and a holder flange part fixed to the wall part. An inner diameter of the through hole is larger than an outer diameter of the holder cylindrical part. At least a part of a radially outer surface of the holder cylindrical part in a circumferential direction is located in a position radially inside and away from a radially inner surface of the through hole.
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公开(公告)号：US20190036422A1
公开(公告)日：2019-01-31
申请号：US16041843
申请日：2018-07-23
发明人： Hiroshi SHIRAI , Shuichi KINJO , Yutaka UEMATSU , Kenichi OZAWA
摘要： An electric actuator includes a first wiring member with a first connection portion exposed to one side in an axial-direction of a first case and a second wiring member with a second connection portion exposed to another side in the axial-direction of a second case, the first and second connection portions each having two opposing portions that respectively oppose in first and second directions with first and second gaps therebetween, the first gap having a narrow portion and a wide portion (larger in the first direction) connected thereto on the other side in the axial-direction, the second gap having a narrow portion and a wide portion (larger in the second direction) connected thereto on the one side in the axial-direction, and the first and second gaps overlapping at least partially when the first and second case are fixed, and the first and second connection portions are electrically connected.
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公开(公告)号：US20200251951A1
公开(公告)日：2020-08-06
申请号：US16739070
申请日：2020-01-09
发明人： Shuichi KINJO , Hiroshi SHIRAI , Yutaka UEMATSU
摘要： An electric actuator includes a motor and a deceleration mechanism. The motor has a motor case having a first opening end surface. The deceleration mechanism has a deceleration mechanism case having a second opening end surface. The motor case and the deceleration mechanism case are connected via a sealing member. The first opening end surface has a first end surface body part and a first end surface protrusion part. The second opening end surface has a second end surface body part and a second end surface protrusion part. The sealing member has a body part sealing part and a protrusion part sealing part. The protrusion part sealing part has an axial-direction protrusion that faces a side surface of the motor case in the first end surface protrusion part or a side surface of the deceleration mechanism case in the second end surface protrusion part in a circumferential direction.
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公开(公告)号：US20200244140A1
公开(公告)日：2020-07-30
申请号：US16747552
申请日：2020-01-21
发明人： Shuichi KINJO , Hiroshi SHIRAI , Yutaka UEMATSU
摘要： An electric actuator includes a motor which has a rotor having a motor shaft extending along a central axis and a stator facing the rotor in a radial direction, a motor case for housing the motor, and a deceleration mechanism coupled to one axial side of the motor shaft. The motor case has a case cylinder portion, a lid for covering, and a plurality of screws. The case cylinder portion has a plurality of screw fixing portions. The lid has a top plate portion, an outer cylinder portion which surrounds the case cylinder portion from a radial outer side, an annular groove portion, and a seal member which seals the opening portion of the case cylinder portion. In the lid, an axial thickness of a region which overlaps the annular groove portion as viewed in the axial direction is larger than an axial thickness of the top plate portion.
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