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公开(公告)号：US20050223400A1
公开(公告)日：2005-10-06
申请号：US10510359
申请日：2003-04-04
CPC分类号： G11B17/0282 , G11B19/2009 , G11B19/2027 , H02K7/04 , H02K15/165
摘要： A spindle motor, in which the number of parts is kept from increasing and the number of assembling processes is reduced, and which has mechanisms for self-balancing and centrally aligning a disk, comprises a motor assembly (31) for rotating a disk (30) as a recording medium, a turntable (12) for mounting the disk (30), and a holder plate (14) disposed under the turntable (12). The mechanism for self-balancing is structured such that a plurality of steel balls (16) are disposed within an annular space (22) defined by the turntable (12) and the holder plate (14), and the mechanism for centrally aligning the disk (30) is constituted by a plurality of claw-shaped aligning members (5) formed at the inner circumference of the holder plate (14).
摘要翻译： 一种主轴电动机，其中部件的数量不增加，并且组装过程的数量减少，并且具有用于自平衡和中心对准盘的机构的主轴电动机包括用于使盘（30）旋转的电动机组件（31） ）作为记录介质，用于安装盘（30）的转盘（12）和设置在转台（12）下方的保持板（14）。 结构使得多个钢球（16）设置在由转台（12）和保持板（14）限定的环形空间（22）内，并且用于使盘 （30）由形成在保持板（14）的内周的多个爪状对准构件（5）构成。
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公开(公告)号：US20050046305A1
公开(公告)日：2005-03-03
申请号：US10929184
申请日：2004-08-30
IPC分类号： H02K1/14 , H02K3/52 , H02K5/00 , H02K5/15 , H02K5/22 , H02K37/12 , H02K37/14 , H02K37/00 , H02K1/12
摘要： A claw-pole type stepping motor comprises: a rotor assembly shaped substantially cylindrical, and having a center shaft; and a stator assembly composed of two cup-shaped stator units which are coupled to each other coaxially so as to axially sandwich the rotor assembly, and which each include a bobbin having a magnet wire wound therearound, and two pole tooth arrays magnetically connected to each other and shifted in phase from each other by an electrical angle of 180 degrees. In the motor, each stator unit further includes a cover ring which protects the magnet wire wound around the bobbin against resin injected when the stator unit is resin-molded for an integrated solid structure. The motor structured as described above can be successfully resin-molded so as to enable elimination of a motor case, thus achieving downsizing for the dimension of the eliminated motor case while maintaining a sufficient mechanical strength.
摘要翻译： 爪极型步进电机包括：大致圆柱形的转子组件，具有中心轴; 以及由两个杯形定子单元组成的定子组件，它们彼此同轴地联接以轴向夹持转子组件，并且每个包括绕其周围的磁铁线圈的线轴和与每个磁性连接的两个磁极阵列 另一个并且相位偏移180度的电角度。 在电动机中，每个定子单元还包括一个盖环，当环形树脂成形为一体化的固体结构时，保护围绕绕线管缠绕的电磁线圈防止树脂注入。 如上所述构造的电动机可以成功地树脂模制，以便能够消除电动机壳体，从而在保持足够的机械强度的同时实现消除的电动机壳体的尺寸的小型化。
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公开(公告)号：US20060238050A1
公开(公告)日：2006-10-26
申请号：US10565620
申请日：2004-10-12
CPC分类号： H02K7/06 , H02K7/081 , Y10T74/19702
摘要： There is provided a stepping motor including: a stator assembly; a rotary shaft which includes a lead screw portion and a plain portion with a rotor magnet disposed thereon, and which has both ends thereof rotatably supported by respective bearings; and a thrust mechanism which includes a resilient member provided in a recess formed at one end of the rotary shaft positioned toward the lead screw portion, and adapted to give an axial thrust force to the rotary shaft, and a point-contact member provided between the resilient member and one bearing of the respective bearings, the one bearing rotatably supporting the one end of the rotary shaft positioned toward the lead screw portion. Thus, the thrust mechanism is located out of and apart from the stator assembly which includes coils to radiate heat, and therefore is prevented from suffering influences from the heat radiated by the coils.
摘要翻译： 提供了一种步进电机，包括：定子组件; 旋转轴，其包括导螺杆部分和平面部分，其上设置有转子磁体，并且其两端由相应的轴承可旋转地支撑; 以及推力机构，其包括弹性构件，所述弹性构件设置在形成在所述旋转轴的位于所述导螺杆部分的一端处的凹部中，并且适于向所述旋转轴提供轴向推力;以及点接触构件， 弹性构件和各个轴承的一个轴承，一个轴承可旋转地支撑定位在导螺杆部分的旋转轴的一端。 因此，推力机构位于包括线圈的定子组件之外并且离开定子组件以辐射热量，因此被阻止受到由线圈辐射的热的影响。
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公开(公告)号：US07071593B2
公开(公告)日：2006-07-04
申请号：US10929184
申请日：2004-08-30
摘要： A claw-pole type stepping motor comprises: a rotor assembly shaped substantially cylindrical, and having a center shaft; and a stator assembly composed of two cup-shaped stator units which are coupled to each other coaxially so as to axially sandwich the rotor assembly, and which each include a bobbin having a magnet wire wound therearound, and two pole tooth arrays magnetically connected to each other and shifted in phase from each other by an electrical angle of 180 degrees. In the motor, each stator unit further includes a cover ring which protects the magnet wire wound around the bobbin against resin injected when the stator unit is resin-molded for an integrated solid structure. The motor structured as described above can be successfully resin-molded so as to enable elimination of a motor case, thus achieving downsizing for the dimension of the eliminated motor case while maintaining a sufficient mechanical strength.
摘要翻译： 爪极型步进电机包括：大致圆柱形的转子组件，具有中心轴; 以及由两个杯形定子单元组成的定子组件，它们彼此同轴地联接以轴向夹持转子组件，并且每个包括绕其周围的磁铁线圈的线轴和与每个磁性连接的两个磁极阵列 另一个并且相位偏移180度的电角度。 在电动机中，每个定子单元还包括一个盖环，当环形树脂成形为一体化的固体结构时，保护围绕绕线管缠绕的电磁线圈防止树脂注入。 如上所述构造的电动机可以成功地树脂模制，以便能够消除电动机壳体，从而在保持足够的机械强度的同时实现消除的电动机壳体的尺寸的小型化。
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公开(公告)号：US06876109B2
公开(公告)日：2005-04-05
申请号：US10884117
申请日：2004-07-02
摘要： A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.
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16.发明申请公开(公告)号：US20050006960A1
公开(公告)日：2005-01-13
申请号：US10884117
申请日：2004-07-02
摘要： A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.
摘要翻译： 爪极式步进电动机包括：转子，其形状基本上为圆柱形，并且在其径向中心具有旋转轴; 并且每个具有至少一个电磁线圈的两个定子，每个具有至少一个电磁线圈，彼此耦合，以便可旋转地容纳转子，它们的磁性线圈分别位于转子的两个轴向端面，并且每个具有两个 磁极组彼此磁连接，使得各个极齿的尖端之间的磁相位以电角度为180度，并且在电动机这样构造中，三个铝管沿轴向穿过两个定子以便保持 两个定子一起。
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公开(公告)号：US06727608B2
公开(公告)日：2004-04-27
申请号：US10157336
申请日：2002-05-28
IPC分类号： H02K3724
CPC分类号： H02K1/145
摘要： A claw-pole type stepping motor which includes a stator in which coils are arranged in association with a pair of inner and outer yokes and a pair of pole tooth sections thereby forming a magnetic circuit; and a rotor magnet which is rotatably disposed opposite to the pair of pole tooth sections, each of the pair of pole tooth sections being prepared discretely from each of the inner and outer yokes by punching out a soft magnetic steel plate so as to form a piece having a belt portion and a plurality of pole teeth integrally connected to the belt portion and thereafter rolling into a cylindrical shape. Thus, it becomes possible to set arbitrarily individual dimensions of each of the pole teeth as required by the characteristics of a motor, thereby providing an excellent high output and miniature motor.
摘要翻译： 一种爪极式步进电动机，其包括：定子，其中线圈与一对内外轭铁和一对极齿部分相关联地布置，从而形成磁路; 以及转子磁体，其与所述一对极齿部分相对地可旋转地设置，所述一对磁极部分中的每一个通过冲压软磁钢板而从每个所述内轭铁和所述外轭铁中分离制成，以形成一块 具有皮带部分和多个极齿，其一体地连接到皮带部分，然后滚动成圆柱形。 因此，可以根据电动机的特性来设定每个极齿的任意个别尺寸，从而提供优异的高输出和微型电动机。
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公开(公告)号：US06710503B2
公开(公告)日：2004-03-23
申请号：US10164647
申请日：2002-06-05
IPC分类号： H02K112
摘要： A stator structure of a claw-pole type stepping motor which has an outer stator yoke having a plurality of pole teeth; an inner stator yoke having a plurality of pole teeth which are intermeshed with the plurality of pole teeth of the outer stator yoke with a gap therebetween; a coil disposed around the circumferential periphery defined by the pole teeth; and a covering which covers the coil. The stator external walls are only partially formed so as to allow the covering to be exposed in regions where the stator external walls are not formed. The stator structure of the present invention enables a dimensional reduction in size of a motor by a dimension corresponding to double the thickness of the stator yoke material, without impairing the performance of the motor.
摘要翻译： 爪极型步进电动机的定子结构，其具有具有多个极齿的外部定子磁轭; 具有多个极齿的内部定子磁轭，所述多个极齿与所述外部定子磁轭的所述多个极齿相互间有间隙; 围绕由所述极齿限定的周向周边设置的线圈; 以及覆盖线圈的覆盖物。 定子外壁仅部分地形成为允许覆盖物暴露在未形成定子外壁的区域中。 本发明的定子结构能够将电动机的尺寸尺寸减小到相当于定子磁轭材料的厚度的两倍的尺寸，而不会损害电动机的性能。
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公开(公告)号：US07642689B2
公开(公告)日：2010-01-05
申请号：US12214153
申请日：2008-06-17
IPC分类号： H02K1/27
CPC分类号： H02K1/2733 , H02K1/28
摘要： A rotor includes: a magnet having a circular cylinder shape and having a hole formed through its axial center, wherein the hole has in axial cross section a regular polygonal shape having flat portions and angle portions, and wherein a recess having a truncated cone shape is disposed at an axial end of the magnet such that the recess has its maximum diameter portion located at the axial end and has its minimum diameter portion communicating with the hole; and a shaft fitted in the hole of the magnet, wherein the outer circumference of the shaft makes contact with the flat portions of the hole of the magnet thereby forming a plurality of gaps between the outer circumference of the shaft and the angle portions of the hole of the magnet, and adhesive is filled in the gaps.
摘要翻译： 转子包括：具有圆筒形状并且具有通过其轴向中心形成的孔的磁体，其中所述孔的轴向横截面具有平坦部分和角部分的正多边形，并且其中具有截头圆锥形状的凹部是 设置在所述磁体的轴向端部处，使得所述凹部具有位于所述轴向端部的最大直径部分，并且其最小直径部分与所述孔连通; 以及安装在所述磁体的孔中的轴，其中所述轴的外周与所述磁体的孔的平坦部接触，从而在所述轴的外周与所述孔的角部之间形成多个间隙 的磁体，并且粘合剂填充在间隙中。
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公开(公告)号：US20090267442A1
公开(公告)日：2009-10-29
申请号：US12320412
申请日：2009-01-26
申请人： Takayuki Yamawaki , Yuzuru Suzuki
发明人： Takayuki Yamawaki , Yuzuru Suzuki
IPC分类号： H02K3/34
摘要： A stator assembly is provided and includes a laminated core and a one-part insulator having cover walls for covering edges of the laminated core, wherein first projections and a second projection both having a height smaller than the difference between the height of the cover walls and the thickness of the laminated core are formed on one side surface of the insulator in such a manner as to make contact with a part of one axial end side surface of the laminated core, whereby a gap which corresponds to the projection distance of the first and second projections and which serves as a clearance space for chips scraped by the edges of the laminated core from the surfaces of the cover walls is provided between the insulator and the laminated core, resulting in ensuring that the insulator is snap-fitted on the laminated core in good shape.
摘要翻译： 提供了一种定子组件，其包括层叠铁芯和具有用于覆盖层叠铁芯的边缘的覆盖壁的单体绝缘体，其中第一突起和第二突起均具有小于盖壁的高度和 叠层铁芯的厚度形成在绝缘体的一个侧表面上，以便与层压芯的一个轴向端侧表面的一部分接触，由此形成与第一和第二绝缘体的突出距离对应的间隙 第二突起并且其作为用于从覆盖壁的表面由层叠铁心的边缘刮下的碎片的间隙设置在绝缘体和层叠芯之间，从而确保绝缘体卡扣配合在层叠芯上 状态不错。
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