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公开(公告)号：US10663076B2
公开(公告)日：2020-05-26
申请号：US15736812
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Tetsuji Yamanaka , Naoaki Kouno , Etsugo Yanagida , Hiroki Shimada
Abstract: A rotation stop shape is visually recognizable through an exposing hole. A relative angle between an output shaft and an actuator lever can be freely set while the rotation stop shape, which is visually recognizable through the exposing hole, is used as the reference angle of the output shaft. Therefore, it is possible to limit disadvantageous variations in a fixation angle of the actuator lever. The fixation angle of the actuator lever relative to the output shaft can be freely changed by using the rotation stop shape, which is visually recognizable through the exposing hole, as a reference angle of the output shaft.
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公开(公告)号：US10591079B2
公开(公告)日：2020-03-17
申请号：US15736477
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Tetsuji Yamanaka , Naoaki Kouno , Hiroki Shimada , Etsugo Yanagida
IPC: H02K7/06 , F16K31/04 , H02K7/116 , H02K11/215 , F02B37/18 , F16H19/00 , F16H21/44 , F16H57/031 , H02K5/173 , H02K5/22 , H02K5/24 , H02K15/14 , F16H57/02 , G01R33/02
Abstract: A housing includes an opening portion, which opens in one direction. At the time of assembling, the opening portion of the housing is placed to face an upper side. Then, a wave washer, an electric motor and screws for motor fixation are assembled from the upper side, and a first intermediate shaft and a second intermediate shaft are press-fitted, and a lower bearing, an output shaft, a second intermediate gear, a first intermediate gear are assembled. Thereafter, a cover is installed from the upper side to the housing. Next, an actuator lever is connected to a distal end part of the output shaft. As discussed above, the electric actuator can be assembled without inverting an orientation of the housing, and thereby productivity can be improved.
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公开(公告)号：US09810518B2
公开(公告)日：2017-11-07
申请号：US14142434
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Tetsuji Yamanaka
CPC classification number: G01B7/14 , G01B7/003 , G01B7/30 , G01D5/145 , G01D5/24433 , G01R33/072
Abstract: A position detector has a gap for providing a detection range. The gap has a gap width that is greater at the ends of the gap than at a center. Therefore, an amount of a spill magnetic flux and an amount of a direct magnetic flux respectively flowing through a position at and around an end portion of the gap are reduced when compared to a gap having a constant gap width along the direction of relative movement. Namely, the density of magnetic flux which passes through a Hall element that is positioned at each longitudinal end of the gap decreases. Therefore, at or around the ends of the gap, a rate of change of the magnetic flux density detected by the Hall element decreases and the linearity of an output signal from the Hall element is improved.
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公开(公告)号：US10451154B2
公开(公告)日：2019-10-22
申请号：US15736440
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Hiroki Shimada , Tetsuji Yamanaka , Etsugo Yanagida
IPC: H02K5/04 , H02K5/22 , H02K7/11 , H02K11/21 , F16H19/00 , F16H1/06 , F16H57/021 , H02K7/116 , H02K11/215 , F02B37/18 , F16H57/031 , F16K31/04 , F16H57/02 , F16H57/032
Abstract: Positioning of a cover relative to a housing is made at two locations. i.e., fitting between a first intermediate shaft and a first recess and fitting between a second intermediate shaft and a second recess. In this way, a load of the cover is not conducted to an output shaft through a cover-side bearing. Therefore, in a state where the cover is fixed to the housing, an excessively large load is not generated between a cover-side bearing and the output shaft and a housing-side bearing and the output shaft.
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公开(公告)号：US10060760B2
公开(公告)日：2018-08-28
申请号：US14142146
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Tetsuji Yamanaka
Abstract: A position detector has a Hall IC movably disposed on a mold within a gap between a first magnetic flux transmission part and a second magnetic flux transmission part for outputting a signal according to a density of a magnetic flux passing therethrough. Movement of the Hall IC relative to a rotating body is detected by the Hall IC. The Hall IC has a first flux collector and a second flux collector. A magnetic resistance of a first magnetic path between the first flux collector and a first flux transmission part and a magnetic resistance of a second magnetic path between the second flux collector and a second flux transmission part are configured so that the Hall IC is movable relative to the rotating body at a predetermined radial distance where the magnetic flux density decreases to a minimum.
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Patent Agency Ranking
公开(公告)号：US20140187373A1
公开(公告)日：2014-07-03
申请号：US14142133
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Tetsuji YAMANAKA , Osamu Sato , Naoaki Kouno
CPC classification number: H02K7/116 , F16H1/32 , H02K11/215
Abstract: A rotation driving device includes a motor provided in a housing, a planetary gear reducer connected to the motor coaxially with the motor, an output shaft connected to an end reduction member of the planetary gear reducer coaxially with the end reduction member, and a rotation detector located at the same position as the end reduction member in an axial direction of the planetary gear reducer and located at a different position from a center axis of the end reduction member in a radial direction of the planetary gear reducer, the rotation detector being capable of detecting a degree of rotation of the end reduction member. Accordingly, the rotation driving device can be made to be smaller and compact in the axial direction.
Abstract translation: 旋转驱动装置包括设置在壳体中的马达，与马达同轴地连接到马达的行星齿轮减速器，与端部减速构件同轴地连接到行星齿轮减速器的端部减速构件的输出轴，以及旋转检测器 位于与行星齿轮减速器的轴向方向上的端部减少构件相同的位置，并且位于与行星齿轮减速器的径向方向上的端部减速构件的中心轴线不同的位置，旋转检测器能够 检测端部还原构件的旋转度。 因此，能够使旋转驱动装置在轴向上变小，紧凑。
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公开(公告)号：US10139248B2
公开(公告)日：2018-11-27
申请号：US15650025
申请日：2017-07-14
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Tetsuji Yamanaka
IPC: G01D5/14
Abstract: Each of a first yoke and a second yoke has an intermediate portion between one end portion and the other end portion of the yoke. When the first and second yokes are viewed in an opposing direction, a width of the intermediate portion of each yoke, which is measured in a direction perpendicular to a rotational direction, is smaller than a width of the one end portion and a width of the other end portion of the yoke and is constant along an entire extent of the intermediate portion in the rotational direction.
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公开(公告)号：US09816798B2
公开(公告)日：2017-11-14
申请号：US14142456
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Tetsuji Yamanaka
CPC classification number: G01B7/14 , G01B7/003 , G01B7/30 , G01D5/145 , G01R33/072
Abstract: A position detector has first and second magnets with a magnet width that is different from a gap width of a gap. As a result, the gap width and the magnet width are independent of each other. The gap width is minimized relative to a molding member that molds a Hall element. The first and second magnets have a specific magnet width that generates a required magnetic flux density without increasing the magnet width, which enables a volume reduction of the position detector.
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公开(公告)号：US09372063B2
公开(公告)日：2016-06-21
申请号：US14291289
申请日：2014-05-30
Applicant: DENSO CORPORATION
Inventor： Naoaki Kouno , Tetsuji Yamanaka , Yoshiyuki Kono
Abstract: A position sensing device has a first magnetic flux transmission unit that includes first thin boards made of long shape magnetic material stacked along a board thickness direction and a second magnetic flux transmission unit that includes second thin boards made of long shape magnetic material stacked along the board thickness direction, for defining a gap space between the first and second magnetic flux transmission units when disposing the first and second magnetic flux transmission units on a rotating body. Further, the position sensing device includes first and second magnets disposed between both ends of the first and second magnetic flux transmission units. A Hall IC disposed on a mold part moves within the gap space along a gap space longitudinal direction relative to the rotating body for outputting a signal according to a density of a magnetic flux passing therethrough.
Abstract translation: 位置检测装置具有第一磁通传递单元，该第一磁通传输单元包括沿着板厚度方向堆叠的由长形磁性材料制成的第一薄板和第二磁通传输单元，该第二磁通传输单元包括沿着该板堆叠的由长形磁性材料制成的第二薄板 用于当将第一和第二磁通量传递单元设置在旋转体上时，限定第一和第二磁通量传递单元之间的间隙空间。 此外，位置检测装置包括设置在第一和第二磁通传输单元的两端之间的第一和第二磁体。 设置在模具部件上的霍尔IC相对于旋转体沿间隙空间长度方向在间隙空间内移动，以根据通过其的磁通密度输出信号。
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公开(公告)号：US09035645B2
公开(公告)日：2015-05-19
申请号：US13663789
申请日：2012-10-30
Applicant: DENSO CORPORATION
Inventor： Akitoshi Mizutani , Naoaki Kouno
CPC classification number: G01B7/003
Abstract: A first and a second magnet are provided on a movable member so as to oppose to each other across a virtual plane. Each magnet is magnetized in a direction perpendicular to the movable member, so that the same magnetic poles of the magnets are opposed to each other. A hall IC is provided at a position more remote from the movable member than the magnets so as to be movable on the virtual plane relative to the movable member. A Y-parallel area is formed in a space equally distanced from the first and the second magnets, in which magnetic fields of the first and the second magnet rebel against each other, so that directions of the magnetic fields are so made to be in parallel to a stroke direction of the movable member. Robustness for a position gap between the magnets and the hall IC is improved.
Abstract translation: 第一和第二磁体设置在可移动部件上，以跨越虚拟平面彼此相对。 每个磁体在垂直于可动件的方向上被磁化，使得磁体的相同的磁极彼此相对。 霍尔IC设置在比磁体更远离可移动部件的位置，以能够相对于可移动部件在虚拟平面上移动。 在与第一和第二磁体等距离的空间中形成Y平行区域，其中第一和第二磁体的磁场相互反抗，使得磁场的方向成平行 到可移动部件的冲程方向。 提高了磁体与霍尔IC之间的位置间隙的鲁棒性。
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