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公开(公告)号：US07633287B2
公开(公告)日：2009-12-15
申请号：US12255783
申请日：2008-10-22
CPC分类号： H01F3/10 , H01F3/14 , H01F17/0033 , H01F27/346 , H01F30/16 , H01F38/30 , H01F2027/2814
摘要： A core is divided by alternately arranging plural magnetic material portions and plural non-magnetic material portions in a circumferential direction of the core through which a primary conductor penetrates. A conductor is wound around the core under conditions in which each core cross section of the core intersects the magnetic material portion and the non-magnetic material portion, each core cross section including a cut end surface of each conductor of a secondary winding wound around the core, and a ratio of a magnetic material portion cross-sectional area of the magnetic material portion to a non-magnetic material portion cross-sectional area of the non-magnetic material portion at the core cross section is kept constant at each core cross section.
摘要翻译： 通过在芯的圆周方向上交替布置多个磁性材料部分和多个非磁性材料部分来分割芯体，初级导体穿过芯部。 在核心的每个芯横截面与磁性材料部分和非磁性材料部分相交的条件下，导体缠绕在芯体周围，每个芯部横截面包括缠绕在第二绕组上的次级绕组的每个导体的切割端面 磁芯部分的磁性材料部分横截面积与芯部横截面处的非磁性材料部分的非磁性材料部分横截面积的比率在每个芯部横截面保持恒定 。
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公开(公告)号：US20090261813A1
公开(公告)日：2009-10-22
申请号：US12255783
申请日：2008-10-22
IPC分类号： G01R19/00
CPC分类号： H01F3/10 , H01F3/14 , H01F17/0033 , H01F27/346 , H01F30/16 , H01F38/30 , H01F2027/2814
摘要： A core is divided by alternately arranging plural magnetic material portions and plural non-magnetic material portions in a circumferential direction of the core through which a primary conductor penetrates. A conductor is wound around the core under conditions in which each core cross section of the core intersects the magnetic material portion and the non-magnetic material portion, each core cross section including a cut end surface of each conductor of a secondary winding wound around the core, and a ratio of a magnetic material portion cross-sectional area of the magnetic material portion to a non-magnetic material portion cross-sectional area of the non-magnetic material portion at the core cross section is kept constant at each core cross section.
摘要翻译： 通过在芯的圆周方向上交替布置多个磁性材料部分和多个非磁性材料部分来分割芯体，初级导体穿过芯部。 在核心的每个芯横截面与磁性材料部分和非磁性材料部分相交的条件下，导体缠绕在芯体周围，每个芯部横截面包括缠绕在第二绕组上的次级绕组的每个导体的切割端面 磁芯部分的磁性材料部分横截面积与芯部横截面处的非磁性材料部分的非磁性材料部分横截面积的比率在每个芯部横截面保持恒定 。
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公开(公告)号：US20110320146A1
公开(公告)日：2011-12-29
申请号：US13254696
申请日：2010-02-08
申请人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
发明人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
IPC分类号： G06F19/00
CPC分类号： G01R31/343 , G01R31/1227
摘要： The invention is related to a device for detecting insulation degradation in an inverter-driven load device, in particular a motor, the device including: zero-phase current measuring means for measuring a zero-phase current in power-feed lines, provided in the power-feed lines between an inverter device and the motor; and command control means for putting rotation of the motor on standby; wherein the zero-phase current measuring means measures the total of phase currents fed into respective phases so as not to rotate a shaft even when an external force is applied to the shaft during the rotation being on standby, whereby allowing regular detection of insulation degradation without switching over the power-feed lines connected with the load device.
摘要翻译： 本发明涉及一种用于检测逆变器驱动的负载装置，特别是电动机中的绝缘劣化的装置，该装置包括：零相电流测量装置，用于测量供电线路中的零相电流， 逆变器装置与电动机之间的供电线; 以及指令控制装置，用于使马达的转动置于待机状态; 其中零相电流测量装置测量馈送到各相中的相电流的总和，以便即使当旋转期间外部力施加到轴时也不转动轴，从而允许定期检测绝缘降级而不会 切换与负载设备连接的供电线路。
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公开(公告)号：US09335380B2
公开(公告)日：2016-05-10
申请号：US13254696
申请日：2010-02-08
申请人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
发明人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
CPC分类号： G01R31/343 , G01R31/1227
摘要： The invention is related to a device for detecting insulation degradation in an inverter-driven load device, in particular a motor, the device including: zero-phase current measuring means for measuring a zero-phase current in power-feed lines, provided in the power-feed lines between an inverter device and the motor; and command control means for putting rotation of the motor on standby; wherein the zero-phase current measuring means measures the total of phase currents fed into respective phases so as not to rotate a shaft even when an external force is applied to the shaft during the rotation being on standby, whereby allowing regular detection of insulation degradation without switching over the power-feed lines connected with the load device.
摘要翻译： 本发明涉及一种用于检测逆变器驱动的负载装置，特别是电动机中的绝缘劣化的装置，该装置包括：零相电流测量装置，用于测量供电线路中的零相电流， 逆变器装置与电动机之间的供电线; 以及指令控制装置，用于使马达的转动置于待机状态; 其中零相电流测量装置测量馈送到各相中的相电流的总和，以便即使当旋转期间外部力施加到轴时也不转动轴，从而允许定期检测绝缘降级而不会 切换与负载设备连接的供电线路。
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公开(公告)号：US20100219814A1
公开(公告)日：2010-09-02
申请号：US12092973
申请日：2006-12-28
IPC分类号： G01D5/14
CPC分类号： G01B7/003 , B66B1/3492 , F01N3/00 , G01D5/145
摘要： In a magnetic position sensor, first and second detecting cores are disposed so as to line up with each other on opposite sides of a detecting gap. A magnet unit is displaced relative to the first and second detecting cores together with displacement of a measured object. The magnet unit has: first and second magnet cores that are disposed so as to line up with each other on opposite sides of an origin gap; and a magnet that generates two magnetic flux loops between the first and second detecting cores and the first and second magnet cores, the magnetic flux loops having a boundary at the origin gap.
摘要翻译： 在磁性位置传感器中，第一和第二检测芯设置成在检测间隙的相对侧彼此对齐。 磁体单元相对于第一和第二检测芯与被测量物体的位移一起移位。 磁体单元具有：第一和第二磁芯，其被设置为在原点间隙的相对侧彼此对齐; 以及磁体，其在第一和第二检测铁芯与第一和第二磁铁芯之间产生两个磁通量环，磁通回路在原点间隙具有边界。
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公开(公告)号：US09234738B2
公开(公告)日：2016-01-12
申请号：US13879731
申请日：2010-11-18
CPC分类号： G01B7/30 , G01D5/145 , G01D5/2451
摘要： A detection track includes a first detection element group that includes a plurality of first magnetic resistance elements arranged at a pitch λ/(2n) when an order to cancel target harmonic components among a plurality of harmonic components superimposed on a fundamental component of a detection signal for multi-pole magnetic pattern is assumed as n, and a second detection element group that includes a plurality of second magnetic resistance elements arranged at the pitch λ/(2n), a plurality of first dummy magnetic resistance elements arranged among the first magnetic resistance elements, and a plurality of second dummy magnetic resistance elements arranged among the second magnetic resistance elements. Pitches between adjacent magnetic resistance elements among the first magnetic resistance elements and the first dummy magnetic resistance element are equivalent to one another, and pitches between adjacent magnetic resistance elements among the second magnetic resistance elements and the second dummy magnetic resistance element are equivalent to one another.
摘要翻译： 检测轨道包括：第一检测元件组，其包括以叠加在检测信号的基本分量上的多个谐波分量中的目标谐波分量取消的次序，以间距λ/（2n）排列的多个第一磁阻元件 假定为n极的多极磁性图案，以及包括以间距λ/（2n）排列的多个第二磁阻元件的第二检测元件组，设置在第一磁阻中的多个第一伪磁阻元件 元件和布置在第二磁阻元件之间的多个第二虚设磁阻元件。 第一磁阻元件和第一伪磁阻元件之间的相邻磁阻元件之间的间距彼此相等，第二磁阻元件和第二虚磁阻元件中的相邻磁阻元件之间的间距彼此相等 。
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公开(公告)号：US09030210B2
公开(公告)日：2015-05-12
申请号：US13582758
申请日：2011-04-04
CPC分类号： G01R31/025 , G01R31/14 , G01R31/34 , G01R31/40
摘要： The invention is related to an insulation deterioration diagnostic apparatus for an electric path connected between an inverter device and an inverter-driven load device, including: a zero-phase current transformer having an annular magnetic core, a magnetizing coil wound around the magnetic core, and a detecting coil wound around the magnetic core, the transformer being for detecting a zero-phase current of an electric path; a magnetization control circuit for supplying an alternating current having a frequency at least twice as high as a drive frequency of the load device to the magnetizing coil to magnetize the magnetic core; and a frequency extracting circuit for extracting a frequency component identical to the drive frequency fd, from the output signal of the detecting coil, whereby precisely measuring a current leaking from an inverter-driven load device over a wide range of frequencies.
摘要翻译： 本发明涉及一种连接在逆变器装置和逆变器驱动的负载装置之间的电路的绝缘劣化诊断装置，包括：具有环形磁芯，缠绕在磁芯上的磁化线圈的零相电流互感器， 以及缠绕在所述磁芯上的检测线圈，所述变压器用于检测电路的零相电流; 磁化控制电路，用于将具有至少两倍于负载装置的驱动频率的频率的交流电提供给磁化线圈以磁化磁芯; 以及频率提取电路，用于从检测线圈的输出信号中提取与驱动频率fd相同的频率分量，从而精确地测量在宽频率范围内从逆变器驱动的负载装置泄漏的电流。
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公开(公告)号：US08824105B2
公开(公告)日：2014-09-02
申请号：US13876046
申请日：2012-05-28
IPC分类号： G11B5/012
CPC分类号： G11B5/4873 , F16C19/08 , F16C19/54 , F16C27/04 , F16C35/077 , F16C2370/12
摘要： A pivot bearing 13 includes: a shaft 21; and a plurality of ball bearings 20 which are arranged in an axial direction with respect to the shaft 21 and each of which has an inner ring 27 fixed to the shaft 21 and an outer ring 25 fixed to a fixing hole 18 of an arm 16 via a tolerance ring 12, the pivot bearing being configured to swing around the shaft. The number of balls of each ball bearing 20 and the number of concave portions of the tolerance ring 12, which are configured to press the outer ring 25, are relatively prime to each other. Accordingly, it is possible to inexpensively make the reliable pivot bearing that achieves high precision with a simple structure, and thus a reliable high density magnetic recording apparatus is provided.
摘要翻译： 枢轴轴承13包括：轴21; 以及多个滚珠轴承20，其相对于轴21沿轴向布置，并且每个具有固定到轴21的内环27和固定到臂16的固定孔18的外环25，该外圈25经由 公差环12，枢转轴承构造成围绕轴摆动。 每个滚珠轴承20的滚珠数量以及配置成按压外圈25的公差环12的凹部的数量彼此相对。 因此，可以以简单的结构廉价地制造实现高精度的可靠的枢转轴承，从而提供可靠的高密度磁记录装置。
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公开(公告)号：US20140002931A1
公开(公告)日：2014-01-02
申请号：US13876046
申请日：2012-05-28
CPC分类号： G11B5/4873 , F16C19/08 , F16C19/54 , F16C27/04 , F16C35/077 , F16C2370/12
摘要： A pivot bearing 13 includes: a shaft 21; and a plurality of ball bearings 20 which are arranged in an axial direction with respect to the shaft 21 and each of which has an inner ring 27 fixed to the shaft 21 and an outer ring 25 fixed to a fixing hole 18 of an arm 16 via a tolerance ring 12, the pivot bearing being configured to swing around the shaft. The number of balls of each ball bearing 20 and the number of concave portions of the tolerance ring 12, which are configured to press the outer ring 25, are relatively prime to each other. Accordingly, it is possible to inexpensively make the reliable pivot bearing that achieves high precision with a simple structure, and thus a reliable high density magnetic recording apparatus is provided.
摘要翻译： 枢轴轴承13包括：轴21; 以及多个滚珠轴承20，其相对于轴21沿轴向布置，并且每个具有固定到轴21的内环27和固定到臂16的固定孔18的外环25，该外圈25经由 公差环12，枢转轴承构造成围绕轴摆动。 每个滚珠轴承20的滚珠数量以及配置成按压外圈25的公差环12的凹部的数量彼此相对。 因此，可以以简单的结构廉价地制造实现高精度的可靠的枢转轴承，从而提供可靠的高密度磁记录装置。
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公开(公告)号：US20100052664A1
公开(公告)日：2010-03-04
申请号：US12596729
申请日：2008-04-17
IPC分类号： G01B7/30
CPC分类号： G01D5/2451
摘要： The present invention provides a magnetic rotational-angle detector capable of detecting a position and a rotational angle of a rotating member with excellent accuracy. The magnetic rotational-angle detector includes device arrays (51, 52) constituted by a plurality of magnetic sensor devices which are arranged to cancel the n-th order harmonic components by each other. In the device arrays, the magnetic sensor devices corresponding to each other are arranged such that they are spaced apart with a distance of (2m+1)λ, and the arrangement of all the magnetic sensor devices and their orientations with respect to a power-supply terminal and a ground terminal are axisymmetrical about a straight line (2b) passing through a barycenric position (59) of all the magnetic sensor devices which is positioned on a straight line along a radial direction of a rotating drum (1).
摘要翻译： 本发明提供一种能够以高精度检测旋转部件的位置和旋转角度的磁旋转角度检测装置。 磁旋转角度检测器包括由多个磁传感器装置构成的装置阵列（51,52），其被布置为相互抵消n次谐波分量。 在器件阵列中，彼此对应的磁传感器装置被布置为使得它们以（2m + 1）λ的距离间隔开，并且所有磁传感器装置的布置及其相对于功率 - 供电端子和接地端子围绕通过沿着旋转鼓（1）的径向位于直线上的所有磁传感器装置的重心位置（59）的直线（2b）的轴对称。
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