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公开(公告)号：US20050275297A1
公开(公告)日：2005-12-15
申请号：US11150091
申请日：2005-06-13
申请人： Yuzuru Suzuki , Naoyuki Harada , Kazuo Muramatsu
发明人： Yuzuru Suzuki , Naoyuki Harada , Kazuo Muramatsu
摘要： There is provided an actuator which includes: a stator assembly including a pair of stator yokes, and a coil disposed between the pair of stator yokes; a rotor unit including a magnet at its outer circumference and disposed inside the stator assembly; an output shaft disposed inside the rotor unit; a housing; a front plate disposed between the stator assembly and the housing; a printed board having a land portion leading to a grounding wire; and a grounding terminal having electrical conductivity and elasticity and disposed between the stator assembly and the housing. One end portion of the grounding terminal makes contact with one of the pair of stator yokes, and the other end portion thereof makes connection to the land portion of the printed board, whereby static electricity and electromagnetic noises generated in the stator assembly are conducted to the grounding wire.
摘要翻译： 提供了一种致动器，其包括：定子组件，其包括一对定子轭和设置在所述一对定子轭之间的线圈; 转子单元，其外周具有磁铁，并设置在定子组件的内部; 设置在转子单元内的输出轴; 房屋; 设置在所述定子组件和所述壳体之间的前板; 印刷电路板，具有通向接地线的接地部分; 以及具有导电性和弹性并设置在定子组件和壳体之间的接地端子。 接地端子的一个端部与一对定子轭中的一个接触，另一端部与印刷电路板的接地部连接，由此在定子组件中产生静电和电磁噪声， 接地线。
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公开(公告)号：US07151333B2
公开(公告)日：2006-12-19
申请号：US11150091
申请日：2005-06-13
申请人： Yuzuru Suzuki , Naoyuki Harada , Kazuo Muramatsu
发明人： Yuzuru Suzuki , Naoyuki Harada , Kazuo Muramatsu
IPC分类号： H02K5/00
摘要： There is provided an actuator which includes: a stator assembly including a pair of stator yokes, and a coil disposed between the pair of stator yokes; a rotor unit including a magnet at its outer circumference and disposed inside the stator assembly; an output shaft disposed inside the rotor unit; a housing; a front plate disposed between the stator assembly and the housing; a printed board having a land portion leading to a grounding wire; and a grounding terminal having electrical conductivity and elasticity and disposed between the stator assembly and the housing. One end portion of the grounding terminal makes contact with one of the pair of stator yokes, and the other end portion thereof makes connection to the land portion of the printed board, whereby static electricity and electromagnetic noises generated in the stator assembly are conducted to the grounding wire.
摘要翻译： 提供了一种致动器，其包括：定子组件，其包括一对定子轭和设置在所述一对定子轭之间的线圈; 转子单元，其外周具有磁铁，并设置在定子组件的内部; 设置在转子单元内的输出轴; 房屋; 设置在所述定子组件和所述壳体之间的前板; 印刷电路板，具有通向接地线的接地部分; 以及具有导电性和弹性并设置在定子组件和壳体之间的接地端子。 接地端子的一个端部与一对定子轭中的一个接触，另一端部与印刷电路板的接地部连接，由此在定子组件中产生静电和电磁噪声， 接地线。
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公开(公告)号：US20060044096A1
公开(公告)日：2006-03-02
申请号：US11211904
申请日：2005-08-25
IPC分类号： H01F7/08
CPC分类号： H01F7/1615 , H01F7/122
摘要： An electromagnetic actuator with high performance such as high speed and high resolution is inexpensively provided with solutions to problems associated with power supply and leakage flux, which have been involved in the structure of a moving coil type and have been shortcomings of a VCM type actuator. A composite electromagnetic actuator apparatus employs the foregoing electromagnetic actuator. The electromagnetic actuator is equipped with a stationary assembly that includes two coils disposed coaxially with each other inside a hollow stator yoke composed of a soft magnetic material, and a movable assembly composed of a movable magnet unit and a movable yoke unit both disposed inside the coils with a very small clearance therefrom so as to be movable in the axial direction, wherein the movable assembly travels in the axial direction by the interaction between a magnetic field generated by the movable magnet unit and a current passing through the coils.
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公开(公告)号：US06505001B1
公开(公告)日：2003-01-07
申请号：US08968495
申请日：1997-11-12
IPC分类号： G11B2300
CPC分类号： G11B25/043
摘要： In a rotor structure of a spindle motor, an underside of a turntable and a top surface of a rotary yoke are integrated with each other by insert molding to eliminate an air gap therebetween in prior arts to thereby allow a stator assembly within the rotary yoke to increase its thickness and also enhance the rigidity of the integrated components while dimensions of the motor remaining unchanged, moreover, simultaneous integration with any components of a rotary shaft, a chucking magnet and a rotary magnet being advantageous in reduction of the assembling steps.
摘要翻译： 在主轴电动机的转子结构中，转盘的下侧和旋转磁轭的上表面通过嵌件成型彼此一体化，以消除现有技术之间的气隙，从而允许旋转磁轭内的定子组件 增加其厚度并且还增强了集成部件的刚度，同时电动机的尺寸保持不变，此外，与旋转轴，夹紧磁体和旋转磁体的任何部件的同时整合有利于减少组装步骤。
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公开(公告)号：US20050046291A1
公开(公告)日：2005-03-03
申请号：US10961853
申请日：2004-10-08
CPC分类号： H02K7/06 , Y10T29/49012 , Y10T74/18576 , Y10T74/18664
摘要： In order to reduce cost through reduction in material cost and improvement of productivity, in a linear type actuator comprising: a stator unit having coils consisting of wound magnet wires and housed inside stator sub-assemblies and pole teeth arranged on the inner circumference thereof; a rotor unit having a field magnet arranged on the outer circumference thereof and rotatably disposed so as to oppose the pole teeth with a given gap; an output shaft attached to a center portion of the rotor unit and movble in the axial direction thereof; and converting means provided on the innermost diametral circumferential surface of the rotor unit and adapted to convert rotary motion of the rotor unit into linear motion of the output shaft, the converting means is made of a material different from that of the rotor unit.
摘要翻译： 为了通过减少材料成本和提高生产率来降低成本，在线性致动器中，包括：定子单元，其具有由缠绕的电磁线构成的线圈，并且容纳在定子子组件内部以及设置在其内周上的极齿; 转子单元，其具有设置在其外周上的场磁体，并且可旋转地设置成与给定间隙的极齿相对; 输出轴，其安装在转子单元的中心部分上，并沿其轴向移动; 以及设置在转子单元的最内侧圆周表面上并适于将转子单元的旋转运动转换为输出轴线性运动的转换装置，转换装置由与转子单元不同的材料制成。
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公开(公告)号：US06467962B1
公开(公告)日：2002-10-22
申请号：US09407464
申请日：1999-09-28
IPC分类号： F16C3206
CPC分类号： F16C33/14 , B21J5/12 , B21K1/00 , F16C17/026 , F16C33/107 , Y10T29/49639
摘要： A high-quality bearing with improved controllability which is capable of performing a smooth movement with low vibration, low noise, and high rotation accuracy is provided stably in a short time and at low cost. Grooves 25 of a desired configuration are provided in the outer circumferential surface of a mandrel 12 having an outer diameter slightly smaller than the inner diameter of the metal bearing 10. The mandrel 12 is inserted into the inner circumferential surface of the metal bearing 10. The metal bearing 10 is inserted into a reducing jig or housing 7 having an inner diameter slightly smaller than the outer diameter of the metal bearing 10, thereby causing plastic deformation of metal and forming desired ridges 19 on the inner circumferential surface of the metal bearing 10. When the bearing has an outer diameter D and an inner diameter d, the reducing jig or housing 7 has an inner diameter A, and the mandrel 12 to be inserted into the inner circumferential surface of the bearing has a diameter B, the dimensional relationship between the individual components is established such that an interference ratio (D−A)/D is in the range of 0.005 to 0.035 and (d−B)/d is equal to or smaller than 0.005 provided that D>A and d>B are satisfied.
摘要翻译： 能够在短时间内以低成本稳定地提供能够以低振动，低噪音，高旋转精度进行平稳运动的具有改善的可控性的高品质轴承。 在具有略小于金属轴承10的内径的外径的心轴12的外周面上设置有所需构造的槽25，心轴12插入金属轴承10的内周面。 金属轴承10被插入具有比金属轴承10的外径稍小的内径的还原夹具或壳体7中，从而导致金属的塑性变形并在金属轴承10的内周面上形成所需的凸条19。 当轴承具有外径D和内径d时，还原夹具或壳体7具有内径A，并且插入到轴承的内周面中的心轴12具有直径B，尺寸关系 建立各个部件，使得干扰比（DA）/ D在0.005〜0.035的范围内，（dB）/ d等于或小于0 .005，只要满足D> A和d> B。
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公开(公告)号：US5762422A
公开(公告)日：1998-06-09
申请号：US882961
申请日：1997-06-26
申请人： Yuzuru Suzuki , Sakae Fujitani , Naoyuki Harada
发明人： Yuzuru Suzuki , Sakae Fujitani , Naoyuki Harada
CPC分类号： H02K5/1675
摘要： A bearing apparatus for use in an floppy disc drive device motor having a sleeve bearing and a thrust bearing is provided which is characterized in that there is provided a thrust bearing having such a convex portion, a projection, or a concave portion that makes the rotation shaft of the motor inclined with respect to the center axis of the sleeve bearing. Therefore, the rotation shaft ofa motor can be forcibly inclined with the rotation shaft and the sleeve bearing being kept in contact with each other. In addition, it is possible to reduce deviation in inclination of the motor rotation shaft and to ensure electric conductance between the motor rotation shaft and the motor body. These advantages are attained by a specific structure in which a projection, a convex portion, or a concave portion is provided at the thrust bearing, and therefore, the structure is simple and requires low costs.
摘要翻译： 提供了一种用于具有套筒轴承和止推轴承的软盘驱动装置电动机的轴承装置，其特征在于，设置有具有这样的凸部，突出部或凹部的推力轴承， 电机的轴相对于套筒轴承的中心轴线倾斜。 因此，电动机的旋转轴可以随着旋转轴和套筒轴承保持接触而被强制倾斜。 此外，可以减少电动机旋转轴的倾斜偏差，并且确保电动机旋转轴和电动机主体之间的电导。 这些优点通过在推力轴承处设置突起，凸部或凹部的特定结构来实现，因此，结构简单并且需要低成本。
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公开(公告)号：US07145423B2
公开(公告)日：2006-12-05
申请号：US11211904
申请日：2005-08-25
IPC分类号： H01F7/00
CPC分类号： H01F7/1615 , H01F7/122
摘要： An electromagnetic actuator with high performance such as high speed and high resolution is inexpensively provided with solutions to problems associated with power supply and leakage flux, which have been involved in the structure of a moving coil type and have been shortcomings of a VCM type actuator. A composite electromagnetic actuator apparatus employs the foregoing electromagnetic actuator. The electromagnetic actuator is equipped with a stationary assembly that includes two coils disposed coaxially with each other inside a hollow stator yoke composed of a soft magnetic material, and a movable assembly composed of a movable magnet unit and a movable yoke unit both disposed inside the coils with a very small clearance therefrom so as to be movable in the axial direction, wherein the movable assembly travels in the axial direction by the interaction between a magnetic field generated by the movable magnet unit and a current passing through the coils.
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公开(公告)号：US06960847B2
公开(公告)日：2005-11-01
申请号：US09862374
申请日：2001-05-22
CPC分类号： H01F7/1615 , H01F7/122
摘要： An electromagnetic actuator with high performance such as high speed and high resolution is inexpensively provided with solutions to problems associated with power supply and leakage flux, which have been involved in the structure of a moving coil type and have been shortcomings of a VCM type actuator. A composite electromagnetic actuator apparatus employs the foregoing electromagnetic actuator. The electromagnetic actuator is equipped with a stationary assembly that includes two coils disposed coaxially with each other inside a hollow stator yoke composed of a soft magnetic material, and a movable assembly composed of a movable magnet unit and a movable yoke unit both disposed inside the coils with a very small clearance therefrom so as to be movable in the axial direction, wherein the movable assembly travels in the axial direction by the interaction between a magnetic field generated by the movable magnet unit and a current passing through the coils.
摘要翻译： 具有诸如高速和高分辨率等高性能的电磁致动器经济地提供了与电源和漏磁通相关的问题的解决方案，这些问题已经涉及到动圈型的结构，并且已经是VCM型致动器的缺点。 复合电磁致动器装置采用上述电磁致动器。 电磁致动器配备有固定组件，该固定组件包括在由软磁材料构成的中空定子磁轭内同轴布置的两个线圈，以及由可动磁体单元和可移动磁轭单元组成的可移动组件，两者设置在线圈内 具有非常小的间隙，以便能够沿轴向移动，其中可移动组件通过由可移动磁体单元产生的磁场和通过线圈的电流之间的相互作用而在轴向方向上行进。
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公开(公告)号：US06346759B1
公开(公告)日：2002-02-12
申请号：US09491825
申请日：2000-01-26
IPC分类号： H02K100
CPC分类号： H02K21/24 , H02K1/146 , H02K15/022
摘要： The present invention provides, at low cost, a stator structure of a high-performance motor, which gives off lower temperature rise, strives for a more highly efficient magnetic circuit, and achieves lower power consumption at highspeed rotation, while at the same time striving to achieve a stable rotor position by preventing rotor float at highspeed rotation. In a highspeed motor comprising a stator including a stator yoke made of a soft magnetic material and coils composed of magnet wires wound on salient poles of the stator yoke; A rotor including a field magnet includes a permanent magnet so as to face the salient poles of the stator by way of an air gap and a shaft as the center of rotation in the center thereof; and a base plate having a housing which has two bearings for rotatably holding the rotor in the center of the stator, improvement being that the stator yoke is constituted by winding a soft magnetic steel sheet.
摘要翻译： 本发明以低成本提供了降低温升的高性能电动机的定子结构，追求更高效的磁路，并且在高速旋转的同时实现较低的功耗， 通过防止高速旋转时的转子浮子来实现稳定的转子位置。 在一种高速电动机中，包括一个定子，该定子包括由软磁材料制成的定子磁轭和缠绕在定子磁轭的凸极上的电磁线圈组成的线圈; 包括场磁体的转子包括永磁体，以便通过气隙和作为其中心的旋转中心的轴面对定子的凸极; 以及具有壳体的基板，该壳体具有用于将转子可旋转地保持在定子的中心的两个轴承，改善的是定子磁轭由卷绕软磁性钢板构成。
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