公开(公告)号：US20040263006A1

公开(公告)日：2004-12-30

申请号：US10831204

申请日：2004-04-26

申请人： Nidec Copal Corporation

发明人： Masato Iwase ,  Masaaki Takagi

IPC分类号： H02K037/00 ,  H02K001/12

CPC分类号： H02K5/15 ,  H02K37/14

摘要： A stepping motor includes: a rotary shaft; a rotor magnet mounted fixedly on the rotary shaft; a bearing member including a smaller-diameter portion and a larger-diameter portion, and supporting the rotary shaft; and a yoke including a plurality of magnetic pole teeth surrounding an outer circumferential surface of the rotor magnet, and a bottom plate having an opening into which the smaller-diameter portion of the bearing member is inserted. The smaller-diameter portion of the bearing member is fitted in the opening of the bottom plate and clamped radially outward.

摘要翻译： 步进电机包括：旋转轴; 固定地安装在旋转轴上的转子磁体; 包括小直径部分和较大直径部分的轴承构件，并支撑旋转轴; 以及包括围绕转子磁体的外周面的多个磁极齿的轭和具有插入轴承构件的较小直径部的开口的底板。 轴承构件的较小直径部分装配在底板的开口中并径向向外夹紧。

公开(公告)号：US20040178685A1

公开(公告)日：2004-09-16

申请号：US10797750

申请日：2004-03-09

发明人： Shotaro Abe ,  Hideyuki Takahashi

IPC分类号： H02K037/00 ,  H02K009/00

CPC分类号： H02K37/14 ,  H02K5/08 ,  H02K7/116

摘要： A stepping motor includes a housing, a rotor and a stator received in the housing. The stator includes a yoke, which includes a frame portion surrounding the rotor and a plurality of projections projecting from the frame portion toward the rotor, cylindrical magnetizing coils inserted around the projections, respectively. Each of the magnetizing coils is adapted to receive supply of a pulse current, wherein an inner wall of the housing is formed with concaved portions to receive said magnetizing coils inserted around the respective projections, while being kept spaced from the rotor.

摘要翻译： 步进马达包括容纳在壳体中的壳体，转子和定子。 定子包括轭，其包括围绕转子的框架部分和从框架部分朝向转子突出的多个突起，分别围绕突起插入的圆柱形磁化线圈。 每个磁化线圈适于接收脉冲电流的供应，其中壳体的内壁形成有凹部以接收插入在各个突起周围的所述磁化线圈，同时保持与转子间隔开。

公开(公告)号：US20040061388A1

公开(公告)日：2004-04-01

申请号：US10655414

申请日：2003-09-04

申请人： Minebea Co., Ltd

发明人： Kunitake Matasushita ,  Hiroshi Sano ,  Toshihiko Nagata

IPC分类号： H02K037/00

CPC分类号： H02K37/14

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 by means of two studs lodged fittingly inside respective bobbins of the first and second coil units such that the studs have their both ends tightly engaging with holes formed in the upper and lower stator yoke pieces, whereby the coil units are surely held between the upper and lower stator yoke pieces.

公开(公告)号：US20030178897A1

公开(公告)日：2003-09-25

申请号：US10323107

申请日：2002-12-19

申请人： SAMSUNG ELECTRO MECHANICS CO., LTD.

发明人： Chang Keun Jun

IPC分类号： H02K005/16 ,  H02K007/08 ,  H02K037/00

CPC分类号： H02K7/081

摘要： The invention relates to a stepping motor having a structure capable of stably supporting a rotary shaft thereby to maintain stable erectness as well as reduce noise and vibration.

摘要翻译： 本发明涉及具有能够稳定地支撑旋转轴的结构的步进电动机，从而保持稳定的直立性以及降低噪音和振动。

公开(公告)号：US20030052552A1

公开(公告)日：2003-03-20

申请号：US10196982

申请日：2002-07-17

申请人： Japan Servo Co. Ltd.

发明人： Masafumi Sakamoto

IPC分类号： H02K037/00

CPC分类号： H02K37/18 ,  H02K29/03 ,  H02P8/14

摘要： In a permanent magnet type three-phase stepping motor having a stator having 3L pieces of stator pole and a rotor having a permanent magnet magnetized so as to form a plurality (Nr) of N and S pole pairs, wherein a condition of 0.3nullnull(Nr/null)(WsnullWr)/(DsnullDr)nullnull0.5 is established, where L is an integer not less than 1, Nr is L(3nnull1), n is an integer not less than 1, Ds is an inner diameter of the stator, Dr is an outer diameter of the rotor, Ws is a width of the stator pole tooth, and Wr is a width of the rotor tooth.

摘要翻译： 在具有3L定子极的定子的永久磁铁式三相步进电动机和具有磁化以形成多个（Nr）N极和S极对的永磁体的转子的情况下，其中0.3 < 建立{（Nr / pi）（Ws + Wr）/（Ds + Dr）} <= 0.5，其中L是不小于1的整数，Nr是L（3n + 1），n是不小于 如图1所示，Ds是定子的内径，Dr是转子的外径，Ws是定子极齿的宽度，Wr是转子齿的宽度。

公开(公告)号：US20020113501A1

公开(公告)日：2002-08-22

申请号：US09963418

申请日：2001-09-27

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Hirofumi Doi

IPC分类号： H02K037/00

CPC分类号： H02K37/14 ,  H02K5/225 ,  H02K7/116 ,  H02K16/04

摘要： There is disclosed a stepping motor capable of increasing assembling work efficiency when the tooth of the gear to be driven provided to a driven member is connected to the tooth of the output shaft gear of the rotor of the stepping motor. The number of teeth for an output shaft gear is set to a predetermined ratio with respect to the number of magnetically stable points per rotation of the rotor, such that the gear to be driven can be held by a reference position stopper when a coil is electrified by a regulated electrification pattern. Thus, while the coil is electrified by the regulated electrification pattern, and the gear to be driven is held by the reference position stopper, the tooth respectively of the gear to be driven, and the output shaft gear are connected to each other. Therefore, these teeth are engaged with each other in a normal position with respect to a reference position.

摘要翻译： 公开了一种步进电动机，其能够提高组装工作效率，同时将被驱动齿轮的齿设置在从动部件上，与步进电动机的转子的输出轴齿轮的齿连接。 输出轴齿轮的齿数相对于转子每旋转的磁稳定点的数量设定为规定比例，使得当线圈通电时被驱动的齿轮可被基准位置止动器保持 通过规范的电气化模式。 因此，当线圈由调节的带电模式带电时，被驱动的齿轮被基准位置止动器保持，被驱动齿轮和输出轴齿轮彼此连接。 因此，这些齿相对于基准位置在正常位置彼此接合。

公开(公告)号：US20020079750A1

公开(公告)日：2002-06-27

申请号：US09999340

申请日：2001-12-03

申请人： JAPAN SERVO CO., LTD.

发明人： Masafumi Sakamoto ,  Noriyoshi Kikuchi ,  Toru Kobayashi

IPC分类号： H02K037/00

CPC分类号： H02K37/04

摘要： Disclosed is a permanent magnet type twelve-pole stepping motor of an inner rotor type or an outer rotor type. A stator comprises an annular shaped yoke portion, a stator iron-core having twelve stator main poles each having a plurality of small teeth on the tip end thereof and stator coils wound in the stator iron-core as three-phase winding. The stator rotatably supports a hybrid type rotor having a cylindrical permanent magnet that is sandwiched between a pair of rotors each having pole teeth around the circumferential surface to be opposite to the small teeth. Second, third, fourth and fifth harmonic components are removed by composing cogging torque of the respective phases by means of the three-phase twelve-pole construction. Any one harmonic component of the cogging torque among the second to fifth harmonic components is independently erased by making a difference between the small teeth pitch and the rotor teeth pitch, thereby the selected harmonic component is doubly erased.

摘要翻译： 公开了内转子型或外转子型的永磁型十二极步进电动机。 定子包括环形磁轭部分，具有十二个定子主磁极的定子铁芯，每个定子主磁极在其前端具有多个小齿，定子铁芯缠绕在定子铁芯中作为三相绕组。 定子可旋转地支撑具有圆柱形永磁体的混合型转子，该圆柱形永久磁铁被夹在一对转子之间，每个转子在圆周表面周围具有与小齿相对的极齿。 第二，第三，第四和第五谐波分量通过三相十二极结构构成各相的齿槽转矩来去除。 通过使小齿间距与转子齿距之间的差异来独立地消除第二至第五谐波分量之间的齿槽转矩的任何一个谐波分量，从而选择的谐波分量被双重擦除。

公开(公告)号：US20020047429A1

公开(公告)日：2002-04-25

申请号：US09863131

申请日：2001-05-23

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Naoyuki Kadoya ,  Yasuhiro Kondo ,  Masaki Tagome

IPC分类号： H02K037/00 ,  H02K016/00 ,  H02K021/12

CPC分类号： B60K6/26 ,  B60K6/32 ,  B60K6/48 ,  B60K6/54 ,  B60L7/06 ,  B60L11/14 ,  B60L11/1887 ,  B60L15/2009 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  H02K1/246 ,  H02K1/276 ,  H02K1/2766 ,  H02K7/006 ,  H02K16/02 ,  H02K21/14 ,  Y02T10/6221 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/34 ,  Y10S903/906 ,  Y10S903/908 ,  Y10S903/917

摘要： A motor according to the present invention is a motor using a rotor 5 including two first rotator portions 2, each having a permanent magnet 1, and a second rotator portion 3 having magnetic saliency inserted therebetween, coupled in a direction of a rotating shaft 4, and part of the rotor 5 is replaced with a reluctance motor, whereby an amount of the permanent magnet 1 is reduced, thus making it possible to reduce generated voltage. Further, there are provided the first rotator portion 2 on both sides of the second rotator portion 3, whereby the second rotator portion 3 is magnetically saturated through the effective use of going-round 18 of magnetic flux to raise salient ratio. Thus, reluctance torque caused in the second rotator portion 3 is increased, whereby it is possible to increase torque as a whole and to obtain a high-output motor.

摘要翻译： 根据本发明的电动机是使用转子5的电动机，该转子5包括两个分别具有永磁体1的第一转子部分2和在其之间插入的具有磁性显着性的第二转动部分3，其沿旋转轴4的方向联接， 并且转子5的一部分被磁阻电动机代替，从而使永磁体1的量减少，从而可以降低产生的电压。 此外，在第二旋转体部3的两侧设置有第一旋转体部2，通过有效地使用磁通量18的磁通量，第二旋转体部3被磁饱和，提高显着比。 因此，在第二转子部3中产生的磁阻转矩增加，由此可以整体上增加转矩并获得高输出电动机。

公开(公告)号：US20020047336A1

公开(公告)日：2002-04-25

申请号：US09944068

申请日：2001-09-04

发明人： Chikara Aoshima

IPC分类号： H02K037/00

CPC分类号： H02P8/22 ,  H02K37/12

摘要： A driving device for a stepping motor capable of providing positioning accuracy with low power consumption includes elements such as a setting circuit for setting the number of driving steps of the stepping motor, a storage circuit for storing a first driving table containing energizing amount data for each step at which the stepping motor is energized and driven in a micro-step manner, and a second driving table containing energizing amount data different in value from the first driving table, and a driving circuit for energizing the stepping motor during the driving steps set in number by said setting circuit according to the energizing amount data of the first or second driving table, and the and the driving circuit selects either the first or second driving table according to the number of remaining steps to be driven.

摘要翻译： 能够提供低功耗的定位精度的步进电动机的驱动装置包括用于设定步进电机的驱动步数的设定电路的元件，存储包含每个电动机的通电量数据的第一驱动表的存储电路 步进电机以微步进方式通电和驱动的步骤，以及包含与第一驱动台不同的通电量数据的第二驱动台，以及用于在设置在驱动步骤中的驱动步骤中对步进电机通电的驱动电路 根据第一或第二驱动台的通电量数据由所述设定电路编号，并且驱动电路根据待驱动的剩余步数选择第一或第二驱动表。

公开(公告)号：US20020036437A1

公开(公告)日：2002-03-28

申请号：US09960927

申请日：2001-09-25

申请人： MINEBEA CO., LTD

发明人： Soichi Kurosawa ,  Akio Kanazawa ,  Naohiro Yoshida

IPC分类号： H02K021/12 ,  H02K037/00

CPC分类号： H02K37/18

摘要： The objects of the present invention is to provide a stepping motors capable of rotating with not only high speed but also less undesired vibration and noises, and moreover enabling a simpler, smaller manufacturing equipment thereof to be constructed. A magnetic component 5 of the present invention comprises a magnetic component potions 6 and 7, of which circumferential surface portions each are magnetized in multipole along their circumferential surfaces or magnetized radially in the radial direction, and the magnetic component portions are set up together in the axial direction. As the magnetic component portions 6 and 7 of the magnetic component 5 in the rotor 2 are formed ring-like, the distribution curve of the magnetic flux in the magnetic field is a sine wave, thus this type of stepping motor is capable of reducing undesired vibration and noises as compared with others that have a rotor with teeth on its circumferential surface. In addition, it has less inertia so that it has a high quality capable of responding faster. The magnetic component 5 comprises a first and second magnetic component portions 6 and 7 that are to be combined together, thus they are capable of receiving magnetic force independently, proving themselves to be more controllable with two-phase type. And also it is possible to construct a smaller manufacturing equipment, because the physical size of the magnetizing apparatus for the magnetic components can be determined on the basis of the size of the first and second magnetic component portions 6 and 7.

摘要翻译： 本发明的目的是提供一种能够不仅高速旋转但也不太不希望的振动和噪声的步进电机，而且能够构造更简单，更小的制造设备。 本发明的磁性部件5包括磁性部件6和7，其周向表面部分沿其圆周表面被多次磁化或沿径向径向磁化，并且磁性部件在 轴向。 当转子2中的磁性部件5的磁性部件6和7形成为环状时，磁场中的磁通量的分布曲线是正弦波，因此这种类型的步进电机能够减少不需要的 与具有在其圆周表面上具有齿的转子的其他振动和噪声相比。 此外，它具有较小的惯性，使其具有能够更快响应的高质量。 磁性部件5包括要组合在一起的第一和第二磁性部件部分6和7，因此它们能够独立地接收磁力，证明自身可以用两相型更可控。 并且，也可以构造较小的制造装置，因为用于磁性部件的磁化装置的物理尺寸可以基于第一和第二磁性部件6和7的尺寸来确定。