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1.发明申请公开(公告)号：US20160134217A1
公开(公告)日：2016-05-12
申请号：US15001239
申请日：2016-01-20
发明人： Shinya MORIMOTO , Sohji MURAKAMI , Noor Aamir BALOCH , Motomichi OHTO , Yong-Cheol KWON , Seung-Ki SUL
摘要： A motor includes a stator and a rotor that is arranged opposite to the stator through a predetermined air gap. The stator is such that a plurality of coils are wound around respective slots for each of a plurality of phases. In the stator, the number of turns of one of the plurality of coils is different from those of the others for each of the phases. In the rotor, among a plurality of magnetic poles formed of a plurality of permanent magnets arranged in a circumferential direction of a core, a magnetoresistance of at least one magnetic pole is different from those of the others.
摘要翻译： 电动机包括定子和转子，其通过预定的气隙与定子相对设置。 定子使得多个线圈围绕多个相中的每一个的相应的槽而缠绕。 在定子中，对于各相中的多个线圈中的一个线圈的匝数与其它线圈的匝数不同。 在转子中，在由多个永久磁铁构成的多个磁极中，磁芯沿圆周方向排列，至少一个磁极的磁电阻与其他磁极不同。
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公开(公告)号：US20160087516A1
公开(公告)日：2016-03-24
申请号：US14856566
申请日：2015-09-17
发明人： Shogo MAKINO , Motomichi OHTO
CPC分类号： H02K41/031 , H02K1/2713 , H02K21/16 , H02K2201/18 , H02K2213/03
摘要： A linear-rotary actuator includes a rotor and a stator. The rotor includes an output shaft, and makes a linear motion in an axial direction and a rotary motion in a circumferential direction. The rotor includes N and S pole portions alternating with each other in the axial direction as seen in the circumferential direction and alternating with each other in the circumferential direction as seen in the axial direction. The stator includes a linear motion winding, a rotary motion winding, and protruding cores. The protruding cores protrude toward an inner circumferential side of a radial direction to be opposed to the rotor. The protruding cores are arranged in the axial direction and in the circumferential direction, and displaced in the axial direction to form a circumferential line skewed relative to a direction in which the rotor makes the rotary motion.
摘要翻译： 线性旋转致动器包括转子和定子。 转子包括输出轴，并且沿轴向方向和沿圆周方向的旋转运动进行直线运动。 该转子包括在轴向方向上相对于轴向交替的N极和S极部，并且在轴向观察时沿圆周方向相互交替。 定子包括线性运动绕组，旋转运动绕组和突出的芯。 突出的芯部朝向与转子相对的径向内周侧突出。 突出的芯部沿轴向和周向布置，并且在轴向方向上移位以形成相对于转子进行旋转运动的方向倾斜的圆周线。
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公开(公告)号：US20150171678A1
公开(公告)日：2015-06-18
申请号：US14633136
申请日：2015-02-27
发明人： Yukio TSUTSUI , Atsushi KAWAHARA , Motomichi OHTO
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , H02K1/246 , H02K1/2766
摘要： A rotary electric machine is provided, which includes a rotor core, a plurality of permanent magnets embedded in the rotor core, and a stator core arranged so as to oppose to the rotor core. The plurality of permanent magnets include a pair of first permanent magnets. The pair of first permanent magnets are arranged so that first magnetic poles thereof having the same polarity oppose to each other and are separated from each other on both sides of a magnetic path of d-axis by a predetermined distance. The rotor core includes gaps formed within the magnetic path of the d-axis.
摘要翻译： 提供了一种旋转电机，其包括转子芯，嵌入转子芯中的多个永磁体以及与转子芯相对布置的定子芯。 多个永磁体包括一对第一永久磁铁。 一对第一永久磁铁配置成使得具有相同极性的第一磁极彼此相对并且在d轴的磁路的两侧彼此分开预定距离。 转子芯包括形成在d轴的磁路内的间隙。
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公开(公告)号：US20160087515A1
公开(公告)日：2016-03-24
申请号：US14856564
申请日：2015-09-17
发明人： Shogo MAKINO , Motomichi OHTO
CPC分类号： H02K41/031 , H02K5/1732 , H02K21/16 , H02K2201/18
摘要： A linear-rotary actuator includes a rotor and a stator. The rotor includes an output shaft, and makes a linear motion in an axial direction of the output shaft and a rotary motion in a circumferential direction of the output shaft. The rotor includes permanent magnets and yokes alternating with each other in the axial direction. Each yoke includes protrusions that protrude toward an outer circumferential side of a radial direction of the output shaft and that are arranged in the circumferential direction. Each protrusion includes overhangs respectively extending toward first and second sides of the axial direction to overlap the permanent magnets in the radial direction. The stator includes a linear motion winding to generate a first magnetic field to cause the rotor to make the linear motion, and a rotary motion winding to generate a second magnetic field to cause the rotor to make the rotary motion.
摘要翻译： 线性旋转致动器包括转子和定子。 转子包括输出轴，并且沿输出轴的轴向方向和在输出轴的圆周方向上的旋转运动进行直线运动。 转子包括在轴向上彼此交替的永磁体和轭。 每个轭包括朝向输出轴的径向方向的外周侧突出并且沿圆周方向布置的突起。 每个突起包括分别沿着轴向方向的第一和第二侧延伸的突出端，以在径向上与永磁体重叠。 定子包括线性运动绕组以产生第一磁场以使转子进行直线运动，以及旋转运动绕组以产生第二磁场以使转子进行旋转运动。
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公开(公告)号：US20140246939A1
公开(公告)日：2014-09-04
申请号：US14276981
申请日：2014-05-13
发明人： Sohji MURAKAMI , Motomichi OHTO , Kentaro INOMATA , Kozo IDE , Shinya MORIMOTO
CPC分类号： H02K1/274 , H02K1/02 , H02K1/146 , H02K1/148 , H02K1/2733 , H02K1/276 , H02K1/278 , H02K3/28 , H02K29/12 , H02K2201/03 , H02P6/18 , H02P25/18
摘要： The motor includes: a rotor that includes a rotor core provided with a plurality of permanent magnets in a circumferential direction; and a stator that includes a stator core on which multi-phase stator coils are wound and is arranged facing the rotor with a predetermined air gap therebetween. The rotor has a structure in which the change pattern of magnetic properties of the rotor core or the permanent magnets changes stepwise in the circumferential direction. The stator has a structure in which the distribution pattern of a magnetic field generated by the stator coils with one phase or with a combination of the phases has uniqueness over a whole circumference.
摘要翻译： 电动机包括：转子，其包括沿圆周方向设置有多个永磁体的转子铁芯; 以及定子，其包括定子芯，多个定子线圈缠绕在所述定子芯上，并且在所述定子芯之间以预定的气隙相对于所述转子布置。 转子具有转子铁心或永磁体的磁特性的变化方向在周向上逐步变化的结构。 定子具有这样一种结构，其中由定子线圈产生的具有一相或相组合的磁场的分布模式在整个圆周上是唯一的。
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公开(公告)号：US20180342913A1
公开(公告)日：2018-11-29
申请号：US16052620
申请日：2018-08-02
发明人： Takeo SUZUKI , Kenichi HIRATA , Hiroshi KOGA , Motomichi OHTO , Yosuke SHIROZU
摘要： A rotating electrical machine includes a frame, and a stator core fixed to an inner peripheral surface of the frame and including a plurality of split cores disposed in a peripheral direction. Each of the plurality of split cores includes a groove disposed along an axial direction on a central position in the peripheral direction on an outer peripheral surface of the split core, and a first protrusion disposed on a bottom of the groove and protruding outward in a radial direction.
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公开(公告)号：US20150028697A1
公开(公告)日：2015-01-29
申请号：US14311351
申请日：2014-06-23
发明人： Shogo MAKINO , Motomichi OHTO , Yuji ARINAGA
IPC分类号： H02K41/03
CPC分类号： H02K41/033 , H02K29/08 , H02K41/03 , H02K41/031
摘要： A linear motor includes a stator and an armature that faces the stator with a gap therebetween. The stator has an elongated shape extending so as to cross a direction in which the stator faces the armature, and includes a plurality of salient poles that are arranged along a longitudinal direction of the stator and protrude toward the armature. The armature includes an armature core including a tooth that protrudes toward the stator, an armature winding wound around the tooth, a plurality of permanent magnets disposed on an end side of the tooth so as to be arranged along the longitudinal direction of the stator, and a magnetic-field sensor that detects a magnetic field which is generated by the plurality of permanent magnets and which passes through the plurality of salient poles.
摘要翻译： 线性电动机包括定子和与定子相对的电枢，其间具有间隙。 定子具有延伸以使定子面向电枢的方向延伸的细长形状，并且包括沿着定子的纵向布置并朝向电枢突出的多个凸极。 电枢包括：电枢铁芯，其包括朝向定子突出的齿，缠绕在齿周围的电枢绕组;多个永磁体，其设置在沿着定子的纵向布置的齿的端侧;以及 磁场传感器，其检测由所述多个永磁体产生并穿过所述多个凸极的磁场。
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公开(公告)号：US20140246940A1
公开(公告)日：2014-09-04
申请号：US14275804
申请日：2014-05-12
发明人： Sohji MURAKAMI , Motomichi OHTO , Kentaro INOMATA , Shinya MORIMOTO , Kozo IDE
摘要： A motor includes a rotor including a rotor core provided with a plurality of permanent magnets in the circumferential direction and a stator including a stator core on which multi-phase stator coils are wound. The rotor has a structure in which the change pattern of magnetic properties of the rotor core or the permanent magnets changes in the circumferential direction, and the stator has a structure in which first and second stator coils of the stator coils are wound on the stator core for each phase in such a manner that passage of current is optionally switched, and when the passage of current is switched to the second stator coil, the distribution pattern of a magnetic field formed on the inner circumferential side by the stator has uniqueness over the whole circumference.
摘要翻译： 电动机包括转子，该转子包括在圆周方向上设置有多个永磁体的转子铁心和定子铁心，多个定子线圈缠绕在该定子铁心上。 转子具有这样的结构，其中转子铁芯或永磁体的磁特性的变化模式在圆周方向上变化，并且定子具有其中定子线圈的第一和第二定子线圈缠绕在定子芯上的结构 对于每个相，可以选择性地切换电流的通过，并且当电流的通过切换到第二定子线圈时，由定子在内周侧形成的磁场的分布模式在整体上是唯一的 圆周。
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公开(公告)号：US20200382036A1
公开(公告)日：2020-12-03
申请号：US16997942
申请日：2020-08-20
发明人： Misaki SHIIYA , Masahiro TOUCHI , Motomichi OHTO , Sadayuki SATO , Hideaki IKE , Jiro MURAOKA
摘要： A motor control system includes a motor and a motor control circuitry. The motor includes a rotation axis and a bearing rotatably supporting the rotation axis. The motor control circuitry is configured to control the motor. The motor control circuitry includes a driving time adding circuit configured to add up a driving time of the motor to obtain an accumulated driving time of the motor, a remaining lifetime calculation circuit configured to calculate a remaining lifetime of the bearing based on a lifetime of the bearing and the accumulated driving time, and a warning outputting circuit configured to output warning information when the remaining lifetime is equal to or less than a threshold.
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公开(公告)号：US20190013706A1
公开(公告)日：2019-01-10
申请号：US16131037
申请日：2018-09-14
发明人： Takeo SUZUKI , Motomichi OHTO , Kenichi HIRATA , Hiroki TAKAMURA , Yosuke SHIROZU , Yuta MATSUNAMI
IPC分类号： H02K1/18
摘要： A rotating electrical machine includes a plurality of core pieces forming a stator core. Each of the core pieces includes contact surfaces on one side end and another side end in a peripheral direction, a tapered protrusion on the contact surface of the one side end, the protrusion including first inclined surfaces outside and inside, and a recess on the contact surface of the other side end, the recess including second inclined surfaces contacting the first inclined surfaces outside and inside to receive the protrusion of adjacent core piece. A cross-sectional shape of the protrusion is a shape such that, inside a circle centered on a first end portion with a distance being a radius between a second end portion located on an opposite side of the first end portion and the first end portion, at least a part of the first inclined surfaces contact the second inclined surfaces.
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