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公开(公告)号：US20160322873A1
公开(公告)日：2016-11-03
申请号：US15108357
申请日：2014-02-10
发明人： Toyoaki UDO , Satoru AKUTSU , Shusuke HORI , Takanori ICHIKAWA , Yuji TAKIZAWA
CPC分类号： H02K1/28 , H02K1/278 , H02K2201/06 , H02K2213/03
摘要： A rotor core of a rotor includes: a plurality of protrusions formed on at least a step-skew boundary side; and a tubular non-magnetic ring mounted on outer peripheries of a plurality of permanent magnets so as to cover the boundary. The non-magnetic ring includes a plurality of inner diameter bulging portions. Each of the permanent magnets and each of the protrusions are brought into abutment against the corresponding inner diameter bulging portions.
摘要翻译： 转子的转子芯包括：形成在至少踩踏边界侧的多个突起; 以及安装在多个永磁体的外周上以覆盖边界的管状非磁性环。 非磁性环包括多个内径凸出部分。 每个永磁体和每个突起都与相应的内径凸起部分抵接。
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公开(公告)号：US20170373549A1
公开(公告)日：2017-12-28
申请号：US15540484
申请日：2015-03-02
发明人： Yuji TAKIZAWA , Satoru AKUTSU , Shusuke HORI
CPC分类号： H02K1/278 , B62D5/0403 , H02K5/04
摘要： A front iron core includes a first iron core main body and a plurality of first projecting sections which project to a radial outer side from the first iron core main body. A second iron core includes a second iron core main body which overlaps with the first iron core main body and a plurality of second projecting sections which project to a radial outer side from the second iron core main body. When a rotor iron core is viewed along the axis line, portions of the second projecting sections protrude as extension sections to outward in the circumferential direction, from the first projecting sections. Furthermore, when the rotor iron core is viewed along the axis line, radial-direction outer side end surfaces of the extension parts are smoothly continuous with radial-direction outer side end surfaces of the first projecting sections.
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公开(公告)号：US20160315528A1
公开(公告)日：2016-10-27
申请号：US15104298
申请日：2014-02-17
发明人： Yuji TAKIZAWA , Shusuke HORI , Takanori ICHIKAWA , Toyoaki UDO , Satoru AKUTSU
CPC分类号： H02K29/03 , H02K1/2746 , H02K1/278 , H02K3/28 , H02K11/33 , H02K21/16 , H02K2201/06 , H02K2213/03 , H02K2213/12
摘要： In a permanent magnet motor, projections each include a second projecting portion and a first projecting portion separated away from a side surface of a permanent magnet. When the first projecting portion has a total length L1 in an axial line direction and a height t1, and when the second projecting portion has a total length L2 in the axial line direction and a height t2, (L1×t1)>(L2×t2) is satisfied. As a result, the permanent magnet motor capable of reducing vibration noise of the motor by reducing irregular rotation, reducing decrease in motor torque, and further reducing increase in motor physical size can be obtained.
摘要翻译： 在永磁电动机中，突起部分包括第二突出部分和与永磁体的侧表面分离的第一突出部分。 当第一突出部分具有在轴线方向上的总长度L1和高度t1时，并且当第二突出部分在轴线方向上具有总长度L2和高度t2时，（L1×t1）>（L2× t2）。 结果，可以获得能够通过减少不规则旋转，减小电动机转矩的降低并进一步减小电动机物理尺寸的增加来减少电动机的振动噪声的永磁电动机。
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公开(公告)号：US20190265070A1
公开(公告)日：2019-08-29
申请号：US16342022
申请日：2016-11-16
发明人： Shusuke HORI , Yosuke YUI , Yu KAWANO , Masahiro KANAMARU
IPC分类号： G01D5/14 , H02K11/215 , G01D11/30 , G01D11/24
摘要： To provide a rotational position detecting device in which a rotational position detection error caused by variation in distance between a sensor magnet and a magnetic sensor is reduced, the rotational position detecting device includes a sensor magnet (30) configured to generate a magnetic flux; a holder (34), which is configured to hold the sensor magnet, and has a pressure-contact portion (340) to be fixed to a shaft (40) of a motor (1); and a magnetic sensor (32) configured to detect the magnetic flux generated by the sensor magnet, the magnetic sensor being directly or indirectly fixed to the motor, and being arranged away from the sensor magnet in an axial direction of the shaft, the shaft having an abutment portion (403, 405, 5) configured to receive a distal end portion (341) of the pressure-contact portion.
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公开(公告)号：US20190068018A1
公开(公告)日：2019-02-28
申请号：US16081747
申请日：2016-03-29
发明人： Shusuke HORI , Shinsuke HEMMI , Tatsuki KAWASHIMA , Satoru AKUTSU , Yu KAWANO
摘要： Provided is an electric motor including a permanent magnet rotor and two sets of multi-phase windings serving as coil windings of a stator. The coil windings are wound around teeth by concentrated winding. The multi-phase windings of one of the two sets are wound around every other tooth by skipping one tooth in between. The multi-phase windings of another of the two sets are wound around the teeth skipped by the multi-phase windings of the one set. Adjacent coil windings of the two sets are wound in the same direction. A control unit configured to supply power to the coil windings includes control circuits independent of each other to provide one control circuit for each of the two sets of coil windings, and the control unit controls the control circuits with two sets of control signals having a phase difference of 150 degrees.
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公开(公告)号：US20180115202A1
公开(公告)日：2018-04-26
申请号：US15562980
申请日：2015-04-22
发明人： Yu HIROTANI , Kazumasa ITO , Yuji TAKIZAWA , Satoru AKUTSU , Hiroshi AIDA , Shusuke HORI
CPC分类号： H02K1/16 , B62D5/04 , H02K1/146 , H02K1/18 , H02K1/185 , H02K1/2706 , H02K1/2746 , H02K3/32 , H02K3/48 , H02K29/03 , H02K2201/06 , H02K2213/03
摘要： In the rotary electric machine according to the present invention, a plurality of core sheets include linked core sheets that include linking portions that protrude circumferentially from flange portions so as to link together tip portions of adjacent tooth portions, at least one sheet of the linked core sheets is formed such that a tooth tip portion shape is mirror-asymmetrical relative to a tooth central axis that passes through a circumferential center of the tooth portions, and a stator core is configured by laminating the linked core sheets such that circumferential positions of the linking portions are offset.
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公开(公告)号：US20160294235A1
公开(公告)日：2016-10-06
申请号：US15100722
申请日：2014-04-29
发明人： Yuji TAKIZAWA , Shusuke HORI , Takanori ICHIKAWA , Satoru AKUTSU
CPC分类号： H02K1/2706 , B62D5/0406 , B62D5/0424 , H02K1/02 , H02K1/276 , H02K1/278 , H02K7/083 , H02K21/14 , H02K2201/06 , H02K2213/03 , H02P27/06
摘要： To obtain a permanent magnet motor capable of reducing a decrease in torque due to demagnetization and increasing torque per unit of magnet weight. When the number of poles of permanent magnets is set to P and the number of slots is set to N, the relationship of P:N=2n:12n is established, where n is an integer equal to or more than 2; an air gap length between the inner circumference of a stator core and the outer circumference of the permanent magnet is less than or equal to 1.0 mm; the permanent magnet does not contain a heavy rare earth element and is embedded in a rotor core except for a curve portion of an outer circumference portion; and a circumferential center thickness of the permanent magnet is 2.4 to 4.2 mm.
摘要翻译： 获得能够减少由于退磁引起的扭矩下降和每单位磁体重量增加扭矩的永磁电动机。 当永久磁铁的极数设定为P，槽数设定为N时，建立P：N = 2n：12n的关系，其中n为等于或大于2的整数; 定子铁心的内周与永久磁铁的外周之间的气隙长度小于或等于1.0mm; 永磁体不包含重稀土元素，并且除了外周部分的曲线部分之外嵌入转子芯中; 永久磁铁的周向中心厚度为2.4〜4.2mm。
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