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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：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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公开(公告)号：US6157112A
公开(公告)日：2000-12-05
申请号：US187745
申请日：1998-11-09
IPC分类号： H02K1/14 , H02K1/27 , H02K3/18 , H02K21/12 , H02K21/14 , H02K29/00 , H02K1/24 , H02K1/00 , H02K1/12 , H02K1/18 , H02K15/00
摘要： A brushless DC motor, having a rotor with a cylindrical rotor magnet supported rotationally by a shaft held by bearings mounted on a substantially planar base plate, and a stator supported by the base plate, and including a plurality of radially spaced salient poles holding stator coils formed by windings of magnet wire. Opposing surfaces of the rotor and each salient pole are defined by a first surface of a magnetic core of the salient pole, which is received in a bobbin, and a second surface of the magnetic core orthogonal to the first surface, and the rotor magnet has permanent magnet poles forming a first surface opposing the first surface of the magnetic core, and a second surface opposing the second surface of the magnetic core. A tip of each magnetic core is received through a hole formed in the base plate.
摘要翻译： 一种无刷直流电动机，其具有转子，该转子具有由安装在基本平坦的基板上的轴承保持的轴支撑的圆柱形转子磁体，以及由所述基板支撑的定子，并且包括保持定子线圈的多个径向间隔的凸极 由电磁线圈绕组形成。 转子和每个凸极的相对表面由容纳在线轴中的凸极的磁芯的第一表面和与第一表面正交的磁芯的第二表面限定，并且转子磁体具有 形成与磁芯的第一表面相对的第一表面的永久磁极和与磁芯的第二表面相对的第二表面。 每个磁芯的尖端通过形成在基板中的孔接收。
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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：US06455962B2
公开(公告)日：2002-09-24
申请号：US09803909
申请日：2001-03-13
申请人： Yuzuru Suzuki , Kunitake Matsushita , Hiroichi Shibata , Naoyuki Harada , Taketoshi Ohyashiki , Sakae Fujitani , Hirohito Nakamata
发明人： Yuzuru Suzuki , Kunitake Matsushita , Hiroichi Shibata , Naoyuki Harada , Taketoshi Ohyashiki , Sakae Fujitani , Hirohito Nakamata
IPC分类号： H02K1100
CPC分类号： H02K3/525 , H02K5/225 , H02K15/0056 , H02K15/0075
摘要： A terminal of a motor is provided, in which a connection between a coil and an external circuit can be carried out securely and with a good workability, while saving material resources and enhancing safety relating to environmental pollution. A terminal (23) consists integrally of a magnet wire binding section (20) to connect to a magnet wire (4) of a coil (6), an external connection section (21) to connect to an external circuit and a support base section (22) to press-fit into a terminal block (19) of a bobbin (5) and hold the terminal (23), and the magnet wire (4) is plasma welded for connection through to the external connection section (21) (terminal 23). The connection of the terminal is carried out by welding (plasma welding), thus the end of the magnet wire of a motor (1) is connected without using solder containing lead. As a result, since lead is not used, material resources can be saved and safety relating to the environmental pollution can be enhanced. Since the support base section (22) press-fits into a hole of the terminal block (19) of the bobbin (5), a direction and position of the terminal (23) are settled to thereby increase the stability.
摘要翻译： 提供电动机的端子，其中，线圈和外部电路之间的连接可以安全地并且具有良好的可操作性，同时节省材料资源并增强与环境污染的安全性。 端子（23）由与线圈（6）的电磁线（4）连接的磁铁绑扎部（20）一体地构成，外部连接部（21）与外部电路连接，支撑基部 （22）压配合到线轴（5）的端子块（19）并保持端子（23），并且电磁线（4）被等离子体焊接以连接到外部连接部分（21）（ 终端23）。 端子的连接通过焊接（等离子体焊接）进行，因此电动机（1）的电磁线的端部不使用含铅的焊料而连接。 因此，由于不使用铅，可节省材料资源，提高与环境污染有关的安全性。 由于支撑基部（22）压入线轴（5）的端子块（19）的孔中，所以端子（23）的方向和位置被稳定，从而提高了稳定性。
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公开(公告)号：US06411006B1
公开(公告)日：2002-06-25
申请号：US09791303
申请日：2001-02-23
IPC分类号： H02K106
摘要： Electromagnetic conversion efficiency of an electric rotary machine is enhanced and reduction of leakage flux due to magnetic discontinuity can be realized without providing holes for positioning and fixing salient poles in a stator ring. Outer appearance and decency of the electric rotary machine as a product are also improved by not allowing lower ends of salient poles of an armature assembly to be exposed on an outer surface of the electric rotary machine. For this purpose a radial gap type electric rotary machine comprises a field magnetic pole consisting of a permanent magnet which is supported rotatably and an armature assembly consisting of a plurality of divided salient poles which oppose the field magnetic pole with a small air gap therebetween and are radially arranged with respect to a rotation axis. The armature assembly includes a first ring made of a soft magnetic member for receiving the plurality of salient poles and a second ring made of a soft magnet member for receiving the first ring.
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公开(公告)号：US6133660A
公开(公告)日：2000-10-17
申请号：US99777
申请日：1998-06-19
CPC分类号： F16C33/107 , F16C33/103 , H02K5/163
摘要： A brushless DC motor including a rotor, a field magnet, and fixed poles having salient poles opposed to the field magnet. A bearing structure includes a rotating portion adapted to rotate with the rotor, a part of which rotating portion contacts the shaft, and a groove formed in the rotating contact portion at a predetermined angle between an angle parallel to the axial direction of the rotating portion and an angle perpendicular thereto. A lubricating oil fills both the rotating contact portion and the groove. A plastic plate is disposed under the rotating portion to bear a thrust force of the rotating portion.
摘要翻译： 一种无刷DC电动机，其包括转子，场磁体和具有与磁场磁体相对的凸极的固定极。 轴承结构包括旋转部分，其适于与转子旋转，其一部分旋转部分接触轴;以及在旋转接触部分中以与旋转部分的轴向方向平行的角度之间的预定角度形成的凹槽和 垂直于其的角度。 润滑油填充旋转的接触部分和凹槽。 塑料板设置在旋转部分下方以承受旋转部分的推力。
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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：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：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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