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公开(公告)号：US11159066B2
公开(公告)日：2021-10-26
申请号：US16447435
申请日：2019-06-20
Applicant: DENSO CORPORATION
Inventor： Hiroyuki Ikuta
Abstract: A rotor of rotary electric machines includes a rotor core which include first and second core blocks. The first core block is formed by stacking the steel plates in a state where the steel plates are engaged by a first crimping portion and skewed in a first direction in a circumferential direction. The second core block is formed by stacking the steel plates in a state where the steel plates are engaged by a second crimping portion and skewed in a second direction facing the first direction. The first and second core blocks are connected in an axial direction in the rotor core. A hole for inserting the first crimping portion is provided in an intermediate steel plate which is part of the annular steel plates. This intermediate steel plate is provided at a block boundary position of the second core bock and is connected to the first core block.
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公开(公告)号：US09136746B2
公开(公告)日：2015-09-15
申请号：US14315344
申请日：2014-06-26
Applicant: DENSO CORPORATION
Inventor： Hiroyuki Ikuta , Yuusuke Hara , Nobuyuki Kimura , Kuniharu Teshima
CPC classification number: H02K15/02 , H02K1/148 , H02K1/185 , H02K15/024 , H02K15/066 , Y10T29/49009
Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments, a stator coil mounted on the stator core, and an outer cylinder that is fitted on the radially outer surfaces of the stator core segments so as to fasten the stator core segments together. The stator core has a recess formed in the radially outer surface of one of the stator core segments. The outer cylinder has a slit that radially penetrates the outer cylinder to connect the radially outer and inner surfaces of the outer cylinder and an engaging portion that adjoins the slit. The engaging portion of the outer cylinder is plastically deformed radially inward into the recess of the stator core so as to abut and thereby engage with side walls of the recess which face the engaging portion.
Abstract translation: 定子包括由多个定子铁芯段组成的中空圆柱形定子铁芯，安装在定子铁心上的定子线圈和安装在定子铁芯段的径向外表面上的外筒，以便将定子铁芯 细分在一起 定子芯具有形成在一个定子铁芯段的径向外表面中的凹部。 外筒具有径向穿透外筒以连接外筒的径向外表面和内圆筒的狭缝以及与狭缝相邻的接合部。 外筒的接合部分径向向内塑性变形到定子芯的凹部中，从而与面对接合部分的凹槽的侧壁相接触并与之接合。
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Patent Agency Ranking
公开(公告)号：US09124156B2
公开(公告)日：2015-09-01
申请号：US13909353
申请日：2013-06-04
Applicant: DENSO CORPORATION
Inventor： Hiroyuki Ikuta , Atsuo Ishizuka , Junichi Nakazono
CPC classification number: H02K1/2706 , H02K1/276 , H02K15/12
Abstract: The rotor for an electric rotating machine includes a rotor core fixed to a rotating shaft and formed with at least one magnet accommodating hole, a magnet accommodated in the magnet accommodating hole, a resin portion filled in the magnet accommodating hole accommodating the magnet, a first end plate fixed to the rotating shaft at one axial side of the rotor core, and a second end plate fixed to the rotating shaft at the other axial side of the rotor core. The axial fixing force of the second end plate against the rotating shaft is smaller than that of the first end plate. At least a part of the resin portion is present in an axial area between the magnet accommodated in the magnet accommodating hole and the first end plate, and the magnet is in direct contact with the second end plate.
Abstract translation: 旋转电机的转子包括固定在旋转轴上的转子芯体，形成有至少一个磁体容纳孔，容纳在磁体容纳孔中的磁体，填充在容纳磁体的磁体容纳孔中的树脂部分，第一 端板固定在转子芯的一个轴向侧的旋转轴上，第二端板固定在转子芯的另一个轴向侧的旋转轴上。 第二端板抵靠旋转轴的轴向固定力小于第一端板的轴向固定力。 树脂部分的至少一部分存在于容纳在磁体容纳孔中的磁体与第一端板之间的轴向区域中，并且磁体与第二端板直接接触。
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公开(公告)号：US09876404B2
公开(公告)日：2018-01-23
申请号：US14830891
申请日：2015-08-20
Applicant: DENSO CORPORATION
Inventor： Hiroyuki Ikuta
Abstract: The rotor includes a shaft, and a rotor core that is fitted and fixed to the shaft. The shaft includes a knurled portion on an end side and a small-diameter portion formed in a tip side via a first stepped surface. The rotor core includes a small diameter hole formed in a tip side end portion of the fitting hole press-fitted onto the small diameter portion, a large diameter hole formed in an end side of the small diameter hole via a second stepped surface, and a press-fitting portion press-fitted onto the knurled portion and is formed on an end side end portion of the large diameter hole. A space part is disposed between the first stepped surface and the second stepped surface.
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公开(公告)号：US09780626B2
公开(公告)日：2017-10-03
申请号：US14732156
申请日：2015-06-05
Applicant: DENSO CORPORATION
Inventor： Hiroyuki Ikuta
Abstract: A rotor includes a shaft having knurled portions and a rotor core having a fitting-recess that is fitted and fixed to the knurled portions. The shaft has a small diameter portion on one end of the knurled portions and a flange portion on another end. The rotor core has a small diameter hole on one end of the fitting-recess. When the fitting-recess is fitted into the knurled portions, an end face in the other end of the rotor core abuts the flange portion, while a stepped surface between the fitting-recess and the small diameter hole contacts with an end face in the one end of the knurled portions. Thus, a filler is sealed in gaps formed between the knurled portions and an internal wall of the fitting-recess.
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公开(公告)号：US09287741B2
公开(公告)日：2016-03-15
申请号：US14293235
申请日：2014-06-02
Applicant: DENSO CORPORATION
Inventor： Kazuhiro Nobata , Toshiaki Oohara , Youzou Matsui , Yoshiyasu Kozaki , Hiroyuki Ikuta
Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments and an outer cylinder fitted on the radially outer surface of the stator core. The stator core has a recess formed in the radially outer surface and the recess has an engaging wall surface that extends in both the axial and radial directions of the stator core. The outer cylinder has a fastening portion for fastening the outer cylinder to the stator core. The fastening portion is formed to be partially surrounded by a plurality of first slits and a second slit. The fastening portion is bent radially inward to have a second slit-side end part thereof received in the recess of the stator core. Further, the second slit-side end part of the fastening portion has a distal end engaging with the engaging wall surface of the recess of the stator core.
Abstract translation: 定子包括中空圆柱形定子铁芯，其包括多个定子铁芯段和安装在定子铁芯的径向外表面上的外圆筒。 定子芯具有形成在径向外表面中的凹部，并且凹部具有在定子芯的轴向和径向方向上延伸的接合壁表面。 外筒具有用于将外筒紧固到定子芯的紧固部。 紧固部形成为被多个第一狭缝和第二狭缝部分地包围。 紧固部分径向向内弯曲以使其第二狭缝侧端部容纳在定子芯的凹部中。 此外，紧固部的第二狭缝侧端部具有与定子芯的凹部的接合壁表面接合的远端。
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公开(公告)号：US08987954B2
公开(公告)日：2015-03-24
申请号：US13672875
申请日：2012-11-09
Applicant: Denso Corporation
Inventor： Hiroyuki Ikuta
CPC classification number: H02K11/0031 , H02K11/21 , H02K11/225
Abstract: A motor mounted on a vehicle includes a housing; a shaft rotatably supported by the housing via a bearing; a rotor fixed to the shaft; a stator; and a detector that detects a rotational speed of the rotor. The stator includes: a stator core disposed at an outer circumferential side of the rotor to face the rotor in the radial direction along which the rotor and the stator are arranged to be adjacent each other; and a stator coil being wound around the stator core, the stator coil having a stator coil end formed at one end side of the stator coil in the axial direction. The detector is disposed between the stator coil end and the bearing that supports both ends of the shaft, and at least a part of detector is disposed to be overlapped in the radial direction with the stator coil end and the bearing.
Abstract translation: 安装在车辆上的电动机包括壳体; 通过轴承由壳体可旋转地支撑的轴; 固定在轴上的转子; 定子 以及检测转子的转速的检测器。 所述定子包括：定子铁芯，其设置在所述转子的外周侧，以沿所述转子和所述定子配置成彼此相邻的径向方向面对所述转子; 并且定子线圈缠绕在定子铁芯上，定子线圈具有在轴向方向上形成在定子线圈的一端侧的定子线圈端。 检测器设置在定子线圈端和支撑轴的两端的轴承之间，并且检测器的至少一部分设置成与定子线圈端和轴承沿径向重叠。
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