公开(公告)号：US5834866A

公开(公告)日：1998-11-10

申请号：US753188

申请日：1996-11-21

申请人： Sakae Fujitani ,  Yuzuru Suzuki ,  Hiroki Akaoka

发明人： Sakae Fujitani ,  Yuzuru Suzuki ,  Hiroki Akaoka

IPC分类号： H02K37/12 ,  H02K3/18 ,  H02K3/28 ,  H02K21/22 ,  H02K29/03 ,  H02P8/22 ,  H02K37/00 ,  H02K19/02

CPC分类号： H02K21/22 ,  H02K29/03 ,  H02P8/22 ,  H02K3/28 ,  H02K37/12

摘要： This invention provides a two-phase motor which is applicable to a field where high rotation precision is required as in an FDD spindle motor, which requires a low cost, and which can maintain stable characteristics free from magnetic balance fluctuation between the two phases due to assembly. This motor has a ferromagnetic stator having N stator salient poles and a rotor magnet having M poles. N and M are selected to be both even numbers so a relation N:M=2:2n-1 (n is a natural number) holds. The N stator salient poles are divided into first and second salient pole groups of N/2 stator salient poles on which windings are concentratedly wound. The stator salient poles belonging to the first and second salient pole groups are alternately arranged in the circumferential direction of the stator. The phases of the windings of the stator salient poles belonging to the first and second salient pole groups are sequentially opposite to each other in the circumferential direction in units of groups. The windings of the stator salient poles belonging to the first and second salient pole groups are sequentially, electrically connected in the circumferential direction in units of groups to respectively form first and second phases, thereby providing a two-phase arrangement.

摘要翻译： 本发明提供一种二相电动机，其可应用于需要低FDD主轴电动机的高旋转精度的领域，这需要低成本，并且可以保持两相之间没有磁平衡波动的稳定特性，这是由于 部件。 该电动机具有具有N个定子凸极的铁磁定子和具有M个极的转子磁体。 N和M被选择为两个偶数，因此关系N：M = 2：2n-1（n是自然数）成立。 N个定子凸极分为N / 2个定子凸极的第一和第二凸极组，绕组集中缠绕在其上。 属于第一和第二凸极组的定子凸极在定子的圆周方向上交替布置。 属于第一和第二凸极组的定子凸极的绕组的相位在圆周方向上以组为单位彼此顺序相对。 属于第一和第二凸极组的定子凸极的绕组在圆周方向上以组为单位依次电连接，以分别形成第一和第二相，从而提供两相布置。

公开(公告)号：US07049723B2

公开(公告)日：2006-05-23

申请号：US10046629

申请日：2002-01-14

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Seiichi Matsuura

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Seiichi Matsuura

IPC分类号： H02K1/27

CPC分类号： H02K29/03

摘要： The disclosure describes a DC motor including a rotor unit arranged within the motor body and has a cylindrical field magnet fixed to an outer surface of a holder. The holder has a rotating shaft press-fitted through the center, and the cylindrical field magnet has the S and the N poles alternately around a circumference. There is a stator unit which is circumferentially arranged around the rotor unit, that is made of a plurality of stator yokes that are arranged so that they oppose the field magnet through a small gap. Each of the stator yokes is formed by circumferentially stacking a large number of thin plates, each consisting of a salient pole, and a number of coil units, each formed by winding a magnet wire on a bobbin, and mounting the bobbins on the stator yokes. In the described arrangement, each of the S and N poles has a plurality of stages formed in an axial direction and shifted from each other in the circumferential direction by a predetermined shift amount with respect to the field magnet.

摘要翻译： 本公开内容描述了一种DC电动机，其包括设置在电动机主体内的转子单元，并且具有固定到保持器的外表面的圆柱形场磁体。 保持器具有通过中心压配合的旋转轴，圆柱形场磁体在周围交替地具有S和N极。 在转子单元周围布置有定子单元，该定子单元由多个定子轭构成，该多个定子轭布置成使得它们通过小间隙与场磁体相对。 每个定子磁轭是通过周向地堆叠多个薄板形成的，每个薄板由凸极和多个线圈单元组成，每个薄板通过将线圈缠绕在线轴上而形成，并将线轴安装在定子磁轭上 。 在上述结构中，S极和N极各自具有沿轴向形成的多个台阶，并且相对于场磁铁在圆周方向上彼此偏移预定的偏移量。

公开(公告)号：US20060044096A1

公开(公告)日：2006-03-02

申请号：US11211904

申请日：2005-08-25

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Naoyuki Harada ,  Kunitake Matsushita

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Naoyuki Harada ,  Kunitake Matsushita

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.

公开(公告)号：US06856065B2

公开(公告)日：2005-02-15

申请号：US10370971

申请日：2003-02-20

申请人： Yuzuru Suzuki ,  Seiichi Matsuura ,  Sakae Fujitani ,  Kazuo Muramatsu

发明人： Yuzuru Suzuki ,  Seiichi Matsuura ,  Sakae Fujitani ,  Kazuo Muramatsu

IPC分类号： H02K1/14 ,  H02K1/18 ,  H02K21/14 ,  H02K1/12 ,  H02K15/02

CPC分类号： H02K1/148 ,  H02K1/185

摘要： An electric rotary machine includes a stator comprising: a stator ring; a plurality of discrete salient poles each comprising a bobbin with guide grooves and a pole tooth with a groove, disposed inside the stator ring, and fixed by a molding resin injected inside the stator ring; and a positioning ring having protrusions at its outer circumference and engaging with the discrete salient poles such that the protrusions are each fitted into the groove of the pole tooth.

摘要翻译： 一种电动旋转机械，包括定子，其包括：定子环; 多个离散的凸极，每个包括具有引导槽的线轴和具有槽的极齿，设置在定子环内部，并通过注射在定子环内部的模制树脂固定; 以及定位环，其外周具有突起并与离散的凸极接合，使得突起各自嵌入极齿的凹槽中。

公开(公告)号：US06765320B1

公开(公告)日：2004-07-20

申请号：US09541825

申请日：2000-04-03

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Masaki Kagawa

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Masaki Kagawa

IPC分类号： H02K112

CPC分类号： H02K15/03 ,  H02K1/2733 ,  H02K21/145 ,  H02K33/16 ,  H02K37/14

摘要： The present invention provides a rotor magnet with a claw pole type of actuator of a single phase structure and a magnetization method of the rotor magnet, in which detent and dynamic torques are sufficiently ensured, an angle range of rotational operation is wide, the cost is inexpensive and the characteristics are stable. In the actuator of such structure, the rotor magnet is rotatably arranged through a fine space inside an armature coil, wherein the rotor magnet comprises a single cylindrical type of magnet having a distribution pattern of a magnetic flux in which the magnetic pole peak position of at least one of the N and S poles is shifted stepwise in the axial direction thereof.

摘要翻译： 本发明提供一种转子磁体，其具有单相结构的爪极型致动器和转子磁体的磁化方法，其中充分确保制动力和动态转矩，旋转操作的角度范围宽，成本为 价格低廉，特点稳定。 在这种结构的致动器中，转子磁体可旋转地布置在电枢线圈内的精细空间中，其中转子磁体包括具有磁通分布图案的单个圆柱形磁体，其中磁极峰值位置为 N极和S极中的至少一个在其轴向方向上逐步偏移。

公开(公告)号：US06717319B2

公开(公告)日：2004-04-06

申请号：US10352706

申请日：2003-01-28

申请人： Yuzuru Suzuki ,  Seiichi Matsuura ,  Kunitake Matsushita ,  Masato Hata ,  Sakae Fujitani

发明人： Yuzuru Suzuki ,  Seiichi Matsuura ,  Kunitake Matsushita ,  Masato Hata ,  Sakae Fujitani

IPC分类号： H02K118

CPC分类号： H02K3/522 ,  H02K1/148 ,  H02K2203/03

摘要： An electric rotary machine comprises a cylindrical pole tooth ring and a plurality of salient poles each including a pole tooth. The salient poles are each positioned and fixed such the pole tooth makes firm contact with the pole tooth ring by means of each of a plurality of mechanisms, which are arrayed circumferentially on the pole tooth ring, and which each comprise bend-ups adapted to be elastically deformed when the pole tooth is fitted into the mechanism.

摘要翻译： 电动旋转机器包括圆柱形磁极齿和多个凸极，每个凸极包括极齿。 凸极各自定位和固定，使得齿通过在圆齿环上周向排列的多个机构中的每一个牢固地接触极齿环，并且每个都包括适于弯曲的弯曲 当极齿装配到机构中时弹性变形。

公开(公告)号：US06194806B1

公开(公告)日：2001-02-27

申请号：US09328372

申请日：1999-06-09

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Yoshiyuki Aono ,  Masaki Kagawa

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Yoshiyuki Aono ,  Masaki Kagawa

IPC分类号： H02K100

CPC分类号： H02K1/148 ,  H02K3/522 ,  H02K5/161 ,  H02K5/225 ,  H02K21/14 ,  H02K29/08 ,  H02K2203/03 ,  H02K2203/12 ,  H02K2211/03

摘要： An iron core type cylindrical radial gap type motor structure, by having field magnetic poles generated by permanent magnets and, in opposition to these, salient poles generating a rotational magnetic field and arranged with their emission direction along the rotational axis, the shape of salient poles being approximately T-shaped in cross-section along the rotational axis direction, and I-shaped in cross-section at right angles to the rotational axis direction, the upper end of said T-shaped opposing the axial direction of the rotor magnets and the lower end being mechanically coupled and fixed to the stator ring, thus constructing the magnetic circuit of the armature, and where the relationship between the length L1 of the said salient pole in the axial direction opposed to the field magnetic pole, and the length L2 in the axial direction of the coil core section about which the coil is wrapped, satisfies the conditions 0.3*L1≦L2≦0.6*L1, and, furthermore, where the relationship between the thickness A1 of the said salient pole in the circumferential direction, and the pitch P of the field magnetic pole, satisfies the conditions 0.4*P≦A1≦0.8*P.

摘要翻译： 铁芯型圆柱形径向间隙型电动机结构，通过由永久磁铁产生的场磁极，并且与其相反，产生旋转磁场的凸极，并沿其旋转轴线布置有其发射方向，凸极的形状 沿着旋转轴方向的截面大致为T形，与旋转轴线方向成直角的截面呈I字形，所述T字形的上端与转子磁体的轴向相反， 下端被机械地联接并固定在定子环上，从而构成电枢的磁路，并且其中所述凸极的与场磁极相对的轴向方向的长度L1与长度L2之间的关系 卷绕线圈芯部分的轴向方向满足条件0.3 * L1 <= L2 <= 0.6 * L1，此外，其中关系式 使所述凸极的圆周方向的厚度A1和场磁极的间距P变得满足条件0.4 * P <= A1 <= 0.8 * P。

公开(公告)号：US6078457A

公开(公告)日：2000-06-20

申请号：US879025

申请日：1997-06-19

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Yoshiyuki Aono ,  Masahisa Ezuka

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Yoshiyuki Aono ,  Masahisa Ezuka

IPC分类号： G11B19/20 ,  H02P8/08 ,  H02P8/14

CPC分类号： G11B19/20

摘要： A method for driving a recording disc applies a DC excitation hold so that a rotor portion is stopped. Thereafter, a DC excitation frequency is gradually increased from a low frequency to a rated frequency and synchronizes with the rated revolution.

摘要翻译： 用于驱动记录盘的方法施加直流励磁保持，使得转子部分停止。 此后，直流励磁频率从低频逐渐增加到额定频率，并与额定转速同步。

公开(公告)号：US6031304A

公开(公告)日：2000-02-29

申请号：US8352

申请日：1998-01-16

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Haruyoshi Hino ,  Hideki Sakiyama

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Haruyoshi Hino ,  Hideki Sakiyama

IPC分类号： H02K37/14 ,  H02K37/00

CPC分类号： H02K37/14

摘要： A motor structure including a rotor 1 having a permanent magnet 10 where north poles and south poles are alternately disposed in a moving direction of the rotor, a stator 5a including at least two stator yokes having stator pole teeth 3a, 4a respectively which face to the permanent magnet at a distance and are respectively positioned side by side in the moving direction to bear north poles or south poles respectively due to an electric current flowing through a coil 2a to thereby form at least one phase, wherein the stator pole teeth 3a, 4a are different from each other with respect to an effective area through which magnetic flux passes, whereby high harmonic wave phases generated from the pole teeth 3a, 4a are different from each other by 180 degrees in electric angle to thereby be canceled mutually, therefore an induced electromotive force wave containing hardly high harmonic wave is obtained to thereby reduce a motor vibration.

摘要翻译： 一种电动机结构，包括具有永磁体10的转子1，其中北极和南极在转子的移动方向上交替地设置;定子5a，其包括至少两个定子磁轭，定子磁极齿3a，4a分别面向 并且分别由于电流流过线圈2a而分别地承载北极或南极，从而形成至少一相，其中定子极齿3a，4a 相对于磁通通过的有效面积彼此不同，由此从极齿3a，4a产生的高次谐波相位彼此相差180度，从而相互消除，因此诱发 获得含有几乎不高次谐波的电动势波，从而减少电动机的振动。

公开(公告)号：US06177751B1

公开(公告)日：2001-01-23

申请号：US09377787

申请日：1999-08-20

申请人： Yuzuru Suzuki ,  Sakae Fujitani ,  Kunitake Matsushita ,  Takayuki Yamawaki ,  Hiroshi Sano ,  Kazuo Muramatsu ,  Taichi Nishio

发明人： Yuzuru Suzuki ,  Sakae Fujitani ,  Kunitake Matsushita ,  Takayuki Yamawaki ,  Hiroshi Sano ,  Kazuo Muramatsu ,  Taichi Nishio

IPC分类号： H02K124

CPC分类号： H02K1/148 ,  H02K3/522 ,  H02K5/08 ,  H02K15/12 ,  H02K2203/12

摘要： The object of the present invention is to provide a rotary electric machine that provides bobbins with good assembling efficiency and allows no dislocation of the stator. A motor 2 comprises a case 4, a stator 6 secured inside the case 4, a rotor 10 formed into one piece with a rotating shaft 8. The stator 6 comprises stator yokes 32 and the stator yokes are secured in a radial manner in the case 4. Furthermore, resin 58 is filled in between the stator 6 and the case 4 with a space for the rotor being left. The stator yokes 32 comprise a salient pole 34, a bobbin 36 for holding the salient pole 34, and a magnetic wire 38 wound around the bobbin 36. A collar 39b of the bobbin 36 is formed so as to contact each other with notches 3 formed on two, upper and lower edge portions. Accordingly, combining two bobbins 36, 36 allows through-holes 5 penetrating the collar 39b thereof. This allows the stator to be firmly assembled, provides good assembling workability, and allows no dislocation owing to resin flowing when the resin is injected.

摘要翻译： 本发明的目的是提供一种旋转电机，其提供具有良好组装效率的线轴，并且不会使定子脱位。 电动机2包括壳体4，固定在壳体4内部的定子6，与旋转轴8形成为一体的转子10.定子6包括定子轭32，并且定子轭以径向方式固定在壳体 此外，树脂58被填充在定子6和壳体4之间，具有用于转子的空间。 定子轭32包括凸极34，用于保持凸极34的线轴36和卷绕在绕线管36上的磁线38.线轴36的轴环39b形成为彼此接触形成有凹口3 在两个上，下边缘部分上。 因此，组合两个线轴36,36允许穿透其穿过套环39b的通孔5。 由此，能够使定子牢固地组装，提供良好的组装加工性，并且当注入树脂时，不会由于树脂流动而发生位错。