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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：US20130341112A1
公开(公告)日：2013-12-26
申请号：US14003291
申请日：2012-02-21
CPC分类号： H02K5/04 , B60L11/007 , B60L2200/12 , B62K11/00 , B62M6/55 , H02K1/185 , H02K3/28 , H02K3/38 , H02K15/16 , Y02T10/641
摘要： A driving unit includes a stator, a housing including a tubular section to accommodate the stator, a cover coupled to the housing to block an upper opening of the tubular section, and a bent wire rod defined by a wire to press the stator against the tubular section, the bent wire rod being arranged between a top surface of the stator and a rear surface of the cover while being compressingly deformed along an axis of the stator. The bent wire rod has an annular or substantially annular shape with an opened portion when seen along the axis, and includes projections projecting upward along the axis and depressions projecting downward along the axis being arranged alternately and successively. An elastic force from the bent wire rod causes the stator to receive a downward force along the axis. The stator is pressed against the tubular section to hold the stator in the housing.
摘要翻译： 驱动单元包括定子，壳体，其包括用于容纳定子的管状部分，联接到壳体以阻挡管状部分的上部开口的盖子，以及由线限定的弯曲线材，以将定子压靠在管状部分上 所述弯曲线材布置在所述定子的顶表面和所述盖的后表面之间，同时沿着所述定子的轴线被压缩变形。 弯曲的线材沿着轴线具有开口部的环状或大致环状，并且包括沿着轴向上突出的突起，并且沿轴线向下突出的凹陷被交替地连续布置。 来自弯曲线材的弹性力使得定子沿轴线接收向下的力。 定子被压靠在管状部分上以将定子保持在壳体中。
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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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6.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：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：US20130328427A1
公开(公告)日：2013-12-12
申请号：US14001537
申请日：2012-02-21
申请人： Toshihide Ootani , Toshihiko Nagata
发明人： Toshihide Ootani , Toshihiko Nagata
IPC分类号： H02K3/52
摘要： A motor includes a rotating shaft, a rotor, a stator, and a housing to accommodate the rotating shaft, the rotor, and the stator. The stator includes a tube-shaped stator core located around the rotor, a coil including a winding wire wound around the stator core, and an annular or substantially annular connecting plate connected to the winding wire and a power supply line. The connecting plate is located below the rotor. At a top side of the housing, a first opening having an inner diameter equal to or larger than an outer diameter of the stator is provided. A maximum value of an outer diameter of the connecting plate is equal to or smaller than an outer diameter of the stator core.
摘要翻译： 电动机包括旋转轴，转子，定子和壳体，以容纳旋转轴，转子和定子。 定子包括位于转子周围的管状定子芯，包括卷绕在定子芯上的绕组的线圈和连接到绕组线和电源线的环形或基本环形的连接板。 连接板位于转子下方。 在壳体的顶侧设置有具有等于或大于定子的外径的内径的第一开口。 连接板的外径的最大值等于或小于定子芯的外径。
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9.发明授权公开(公告)号：US06885128B2
公开(公告)日：2005-04-26
申请号：US10672256
申请日：2003-09-26
CPC分类号： H02K37/14 , H02K1/145 , H02K16/04 , H02K21/145
摘要： A low-profile stepping motor has a stator assembly structured such that first and second coil units are disposed flush with each other horizontally and are sandwiched between upper and lower stator yoke pieces each comprising first and second stator yokes which are punched out integrally with each other, are shaped symmetrically, and which each have a plurality of pole teeth along its semi-circular inner circumference. The upper and lower stator yoke pieces are fixedly put together via the coils such that hollow-cylindrical protrusions formed in the upper and lower stator yoke pieces are inserted into through-holes of first and second coil bobbins from the upper and lower sides, respectively, and have their abutting end surfaces welded, bonded or otherwise fixed to each other, whereby the coil units are surely held between the upper and lower stator yoke pieces.
摘要翻译： 薄型步进电机具有定子组件，其构造为使得第一和第二线圈单元彼此水平地相互平齐地设置并夹在上和下定子磁轭之间，每个包括彼此一体冲压的第一和第二定子磁轭 形成对称，并且其沿着其半圆形内圆周具有多个极齿。 上下定子轭片通过线圈固定地放置在一起，使得形成在上下定子磁轭片中的中空圆柱形突起分别从上侧和下侧插入到第一和第二线圈筒管的通孔中， 并且将其邻接端面焊接，粘合或以其他方式彼此固定，由此线圈单元可靠地保持在上下定子轭片之间。
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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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