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11. 发明授权

US06856065B2 Electric rotary machine having positioning ring for securing salient poles in place 有权
标题翻译：电动旋转机具有定位环，用于将凸极固定到位
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。

12. 发明授权

US07049723B2 DC motor 失效
标题翻译：直流电机
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。

13. 发明授权

US06765320B1 Actuator 失效
标题翻译：执行器
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。

14. 发明授权

US06194806B1 Compact cylindrical radial gap type motor 有权
标题翻译：紧凑型圆柱径向间隙式电机
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。

15. 发明授权

US6078457A Driving method for a stepping motor 失效
标题翻译：步进电机的驱动方法
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。

16. 发明授权

US6031304A Motor structure 失效
标题翻译：电机结构
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。

17. 发明授权

US6133655A Claw-pole stepping motor with rotor including vibration reducing magnet 失效
标题翻译：带转子的爪极步进电机包括减振磁铁
公开(公告)号：US6133655A
公开(公告)日：2000-10-17
申请号：US969656
申请日：1997-11-13
申请人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
发明人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
IPC分类号： G11B19/20 , H02K1/27 , H02K5/16 , H02K7/09 , H02K29/03 , H02K37/14 , H02K21/14
CPC分类号： G11B19/2009 , H02K1/2733 , H02K29/03 , H02K5/165 , H02K7/09
摘要： A claw-pole stepping motor with rotor, including a vibration reducing magnet. Vibration in the axial direction is suppressed by having a correction force, which overcomes a force produced by a vertical motion caused when the rotor is pulse-driven, and keeps the rotor attracted to one side. The corrective force is generated between an index generating magnetized portion in a lower area of the rotor and a soft magnetic material base. Magnetic flux leakage produced by the excitation of the stator coils of the motor is suppressed by providing a shield ring made of a magnetic material on an inner side of the rotor magnet, which minimizes the magnetic flux flowing from the coils to the revolving shaft, and noises on the recording and reproducing head are thereby greatly reduced.
摘要翻译：具有转子的爪极步进电机，包括减振磁铁。通过具有校正力来抑制轴向的振动，该校正力克服了当转子被脉冲驱动时引起的垂直运动产生的力，并且将转子保持在一侧。在转子的下部区域的指标产生磁化部分和软磁性材料基体之间产生校正力。通过在转子磁体的内侧设置由磁性材料制成的屏蔽环来抑制由马达的定子线圈的激励产生的磁通泄漏，其使从线圈流到旋转轴的磁通量最小化，以及从而大大降低了记录和再现头上的噪声。

18. 发明授权

US6081058A Motor structure having a permanent magnet motor with grooves to reduce torque ripples 失效
标题翻译：电动机结构具有带凹槽的永磁电动机以减小转矩波动
公开(公告)号：US6081058A
公开(公告)日：2000-06-27
申请号：US655090
申请日：1996-06-04
申请人： Yuzuru Suzuki , Sakae Fujitani
发明人： Yuzuru Suzuki , Sakae Fujitani
IPC分类号： H02K29/00 , H02K1/27 , H02K21/22 , H02K29/03 , H02K29/14 , H02K37/12 , H02K37/14 , H02K21/12 , H02K11/00
CPC分类号： H02K29/14 , H02K1/2786 , H02K29/03
摘要： A motor structure in a salient pole type DC motor in which torque ripple and cogging torque are reduced, without deceasing motor efficiency, and the torque constant and irregularity of the rotation are reduced. The magnetic flux density distribution of an air gap approaches a sine wave shape by forming a groove in the vicinity of the neutral part (a boundary of an N-pole and an S-pole) of a rotor magnet.
摘要翻译：降低了转矩脉动和齿槽转矩的凸极式直流电动机的电动机结构，而不会降低电动机效率，并且减小转矩常数和旋转不均匀性。气隙的磁通密度分布通过在转子磁体的中性部附近（N极和S极的边界）附近形成凹槽来接近正弦波形状。

19. 发明授权

US6057621A Cylindrical radial gap type motor structure 失效
标题翻译：圆柱形径向间隙型电机结构
公开(公告)号：US6057621A
公开(公告)日：2000-05-02
申请号：US186147
申请日：1998-11-05
申请人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono
发明人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono
IPC分类号： H02K1/14 , H02K5/02 , H02K21/14 , H02K21/12
CPC分类号： H02K21/14 , H02K1/148 , H02K2201/06 , H02K5/02
摘要： Salient poles made from soft magnetic steel plates have tip sections of approximately the same length as a rotor magnet. The salient poles are constructed with laminations in the circumferential direction, with axial dimensions adjusted with respect to the circumferential dimensions determined by the constraints of the winding to allow winding sections with a minimum required cross-sectional area so that magnetic saturation does not occur. These winding sections are inserted into coils wound with magnet wire, and press fitted into the stator which makes the magnetic circuit with the salient poles and forms the armature.
摘要翻译：由软磁钢板制成的凸极具有与转子磁体大致相同长度的尖端部分。凸极在圆周方向上具有叠片，其轴向尺寸相对于由绕组的约束确定的周向尺寸进行调节，以允许具有最小所需横截面面积的卷绕部分，使得不发生磁饱和。将这些绕组部分插入到用电磁线缠绕的线圈中，并将其压配合到定子中，使磁路与凸极形成电枢。

20. 发明授权

US5962947A Motor structure 失效
标题翻译：电机结构
公开(公告)号：US5962947A
公开(公告)日：1999-10-05
申请号：US910253
申请日：1997-08-13
申请人： Yuzuru Suzuki , Haruyoshi Hino , Sakae Fujitani , Naomi Inoue , Hideki Sakiyama
发明人： Yuzuru Suzuki , Haruyoshi Hino , Sakae Fujitani , Naomi Inoue , Hideki Sakiyama
IPC分类号： H02K1/14 , H02K21/12 , H02K21/14 , H02K37/14 , H02K1/12 , H02K19/04
CPC分类号： H02K1/145 , H02K21/145 , H02K2201/06 , H02K2201/12
摘要： To reduce as much as possible the motor vibration due to the effect of harmonic components contained in the induced electromotive force waveform induced in the armature coil. In a motor structure, the pole tooth shapes of one pole tooth and the corresponding pole tooth thereto constituting one phase are made different from each other by changing their areas or amounts of skew, whereby the third harmonics caused by variations in the magnetic fluxes interlinking with these pole teeth are caused to cancel each other. Thus, the rotational vibration which has hitherto been a problem can be reduced and, further, the accuracy of the rotor movement can be improved without lowering the dynamic torque characteristic of the motor.
摘要翻译：为了尽可能减少由于在电枢线圈中感应的感应电动势波形中包含的谐波分量的影响而引起的电动机振动。在电动机结构中，通过改变它们的面积或歪斜量，使得单极齿和构成一相的对应极齿的极齿形状彼此不同，由此由与磁铁相互连接的磁通量的变化引起的三次谐波使这些极齿相互抵消。因此，可以降低迄今为止存在的问题的旋转振动，并且还可以在不降低电动机的动态转矩特性的情况下提高转子运动的精度。

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