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21. 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。

22. 发明授权

US5847485A Motor structure 失效
标题翻译：电机结构
公开(公告)号：US5847485A
公开(公告)日：1998-12-08
申请号：US749343
申请日：1996-11-21
申请人： Yuzuru Suzuki , Sakae Fujitani
发明人： Yuzuru Suzuki , Sakae Fujitani
IPC分类号： H02K1/12 , H02K5/167 , H02K5/22 , H02K7/14 , H02K21/14 , H02K21/22 , H02K37/14 , H02K19/00
CPC分类号： H02K21/227 , H02K21/145 , H02K5/1675 , H02K7/14 , H02K2201/12 , H02K5/225
摘要： A motor structure of a claw pole type two-phase synchronous motor has a stator including two armature coils held between corresponding pairs of stator yokes and superposed on one another, and a rotor coaxially mounted on the stator and having a rotary shaft around which the rotor rotates so that a part of the chassis of a memory apparatus forms one of the stator yokes.
摘要翻译：爪极式两相同步电动机的电动机结构具有定子，该定子包括保持在相应的定子线圈对之间的两个电枢线圈和彼此叠置的定子，以及同轴地安装在定子上并具有旋转轴的转子，转子旋转使得存储装置的底盘的一部分形成定子轭中的一个。

23. 发明授权

US5834866A Motor structure 失效
标题翻译：电机结构
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。

24. 发明授权

US5770905A Claw pole type synchronous motor 失效
标题翻译：爪杆式同步电机
公开(公告)号：US5770905A
公开(公告)日：1998-06-23
申请号：US814252
申请日：1997-03-11
申请人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
发明人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
IPC分类号： H02K5/24 , H02K21/14
CPC分类号： H02K21/145 , B27N3/00 , E04F13/08 , H02K2201/12
摘要： A shield plate for preventing the leakage of a magnetic flux and for reducing acoustic/electromagnetic noise leaking out from the interior of the motor is arranged so as to cover the corresponding end surface of an armature. The inner diameter of the shield plate is made smaller than the outer diameter of a rotor in order to prevent the rotor from being detached from a stator assembly.
摘要翻译：用于防止磁通泄漏并且用于减少从电机内部泄漏的声/电噪声的屏蔽板被布置成覆盖电枢的相应端表面。使得屏蔽板的内径小于转子的外径，以防止转子与定子组件分离。

25. 发明授权

US5508578A Stator unit of flat motor 失效
标题翻译：扁平电机定子单元
公开(公告)号：US5508578A
公开(公告)日：1996-04-16
申请号：US324493
申请日：1994-10-18
申请人： Yuzuru Suzuki , Sakae Fujitani , Masaaki Inagaki
发明人： Yuzuru Suzuki , Sakae Fujitani , Masaaki Inagaki
IPC分类号： H02K1/16 , H02K1/14 , H02K1/18 , H02K3/32 , H02K3/34 , H02K3/46 , H02K3/52 , H02K21/22 , H02K1/12
CPC分类号： H02K1/146 , H02K1/187 , H02K3/522 , H02K2203/12 , H02K3/325
摘要： During the assembly of a small motor, insulation is installed on the outer surface of a magnetic pole. An armature coil is wound so that the wire does not touch the corners of the magnetic pole. The wound coil does not loosen and sufficient insulation for the armature coil and magnetic pole gap can be secured when the assembly is completed. This allows as much ampere turn of the armature coil as possible to be obtained. Moreover, the thickness of the motor can be made flatter resulting in easier assembly of the flat motor's stator.
摘要翻译：在小型电动机的组装期间，绝缘体安装在磁极的外表面上。缠绕电枢线圈，使得导线不接触磁极的拐角。绕组线圈不松动，并且当组装完成时，可以确保电枢线圈的充分绝缘和磁极间隙。这允许获得尽可能多的电枢线圈的安培转。此外，电动机的厚度可以变平坦，从而更容易地组装扁平电动机的定子。

26. 发明授权

US5442247A Outer-rotor type spindle motor with a reduced thickness in the axial direction 失效
标题翻译：外转子型主轴电机在轴向上具有减小的厚度
公开(公告)号：US5442247A
公开(公告)日：1995-08-15
申请号：US246139
申请日：1994-05-19
申请人： Yuzuru Suzuki , Sakae Fujitani , Masaaki Inagaki , Hitoshi Uchida
发明人： Yuzuru Suzuki , Sakae Fujitani , Masaaki Inagaki , Hitoshi Uchida
IPC分类号： F16C19/06 , F16C19/54 , G11B17/028 , G11B19/20 , H02K5/124 , H02K5/173 , H02K7/00 , H02K21/22
CPC分类号： F16C19/54 , F16C19/06 , G11B19/20 , G11B19/2009 , H02K5/124 , H02K5/1735 , H02K5/1737 , F16C2370/12
摘要： In an outer-rotor type spindle motor: a front-end portion of a spindle (4) forming a stationary member passes through a central portion of a hub plate (7c) (onto which a disk (11) is loaded) of a rotor yoke (6) forming a rotating member; and, the front-end portion having been passed through the central portion of the hub plate (7a) of the rotor yoke (6) forms a head portion (4c) which is formed into a semispherical shape having been obliquely cut.
摘要翻译：在外转子型主轴电动机中，形成静止部件的主轴（4）的前端部通过转子的毂板（7c）（其上装载有盘片11）的中心部分形成旋转构件的轭（6）并且已经通过转子轭（6）的毂板（7a）的中心部分的前端部分形成为被倾斜切割成半球形的头部（4c）。

27. 发明授权

US06809438B2 Permanent magnet stepping motor having pole teeth misaligned by an electrical angle 失效
标题翻译：永磁式步进电机具有电角度不对准的极齿
公开(公告)号：US06809438B2
公开(公告)日：2004-10-26
申请号：US10159724
申请日：2002-05-29
申请人： Yuzuru Suzuki , Taketoshi Ohyashiki , Sakae Fujitani
发明人： Yuzuru Suzuki , Taketoshi Ohyashiki , Sakae Fujitani
IPC分类号： H02K3700
CPC分类号： H02K37/14
摘要： The stator assembly of a PM stepping motor having a two-phase structure in which two stators arranged along the circumferential direction in such a manner that respective pole teeth are intermeshed together are combined back to back so as to phase-shift the respective pole teeth in the two stators at an electrical angle of 90°. The field rotor magnet is so arranged as to face the respective pole teeth at a small distance, and is magnetized on its circumferential surface along the circumferential direction with a plurality of alternating N- and S-poles having a preset width not matching the pole tooth pitch of each stator.
摘要翻译：具有两相结构的PM步进电动机的定子组件，其中沿着圆周方向布置的两个定子以相应的极齿相互啮合在一起的方式组合在一起，以便相互偏移相应的极齿两个定子在电角度为90°。励磁转子磁体被布置为以相对较小的距离面对各个极齿，并且沿着圆周方向在其圆周表面上被磁化，多个交替的N极和S极具有不匹配极齿的预设宽度每个定子的间距。

28. 发明授权

US6065231A Motor drive method and drive circuit 失效
标题翻译：电机驱动方式及驱动电路
公开(公告)号：US6065231A
公开(公告)日：2000-05-23
申请号：US15339
申请日：1998-01-29
申请人： Yuzuru Suzuki , Sakae Fujitani , Yoshiyuki Aono
发明人： Yuzuru Suzuki , Sakae Fujitani , Yoshiyuki Aono
IPC分类号： G11B19/20 , G11B19/28 , H02P8/10 , H02P23/00 , H02P8/00
CPC分类号： G11B19/2009 , G11B19/28
摘要： There is disclosed a synchronous motor drive in which in a record disc drive of an information recording device a quantity of generated excitation noise is reduced to a small level to which a reading/writing signal is not influenced and a substantial motor generation torque is prevented from lowering. An absolute value of a maximum voltage gradient of a coil excitation voltage waveform is set to a certain value or less. The waveform alternates at a synchronous frequency which is determined by the number of poles of a rotating magnetic field produced in an air gap by a stator winding and the number of revolutions.
摘要翻译：公开了一种同步电动机驱动器，其中在信息记录装置的记录盘驱动器中，产生的激励噪声的数量被减小到读/写信号不受影响的较小水平，并且防止了大量的电动机产生转矩降低将线圈激励电压波形的最大电压梯度的绝对值设定为一定以下。波形以由定子绕组在气隙中产生的旋转磁场的极数和转数确定的同步频率交替。

29. 发明授权

US5929589A Stepping motor drive and a method of driving same 失效
标题翻译：步进电机驱动及其驱动方法
公开(公告)号：US5929589A
公开(公告)日：1999-07-27
申请号：US931521
申请日：1997-09-16
申请人： Yuzuru Suzuki , Sakae Fujitani , Yoshiyuki Aono , Masahisa Etsuka
发明人： Yuzuru Suzuki , Sakae Fujitani , Yoshiyuki Aono , Masahisa Etsuka
IPC分类号： G11B19/28 , G05B19/416 , H02K37/14 , H02P8/14 , H02P8/38 , G05B19/40
CPC分类号： G05B19/416 , G05B2219/37124 , G05B2219/41326 , G05B2219/41365
摘要： The invention is related to a stepping motor drive and a driving method thereof and presents a technology to constantly monitor the phenomenon of step out during the operation of the motor and automatically bring into action a restarting circuit when a step out occurs so that said motor having stepped out may be able to automatically restart, wherein the stepping motor drive is provided with a starting instruction designed to start/stop the stepping motor, a speed sensor or an index sensor designed to detect the rotation speed of said motor, means to detect the rotation speed of said motor from the output of said speed sensor, a rotation speed detection means by detecting the difference of rotation speed with the rated rotation speed, a speed judgment means designed to output signals when the rotation speed of said motor has fallen below the set reference speed, and a restarting pattern generating means designed to automatically increase gradually frequency for a prescribed time from the pull-in frequency of said motor to the desired frequency.
摘要翻译：本发明涉及一种步进电动机驱动及其驱动方法，并且提出了一种在电动机操作期间不断监测失步现象的技术，并且当发生出门时自动地启动再起动电路，使得所述电动机具有可以自动重启，其中步进电动机驱动器设置有用于启动/停止步进电机的启动指令，设计用于检测所述电动机的转速的速度传感器或指标传感器，所述电动机从所述速度传感器的输出的转速，通过以额定转速检测转速的差异的转速检测装置，设计成当所述电动机的转速低于所述转速时输出信号的速度判定装置设定基准速度，以及重新设定模式生成单元，其设计成在t从t开始逐渐增加规定时间的频率他将所述电机的吸入频率提高到所需的频率。

30. 发明授权

US5914581A Information recording device 失效
标题翻译：信息记录装置
公开(公告)号：US5914581A
公开(公告)日：1999-06-22
申请号：US732036
申请日：1996-10-16
申请人： Yuzuru Suzuki , Sakae Fujitani , Masahisa Ezuka
发明人： Yuzuru Suzuki , Sakae Fujitani , Masahisa Ezuka
IPC分类号： G06F13/00 , G11B19/00 , G11B19/20 , G11B19/28 , H02P5/28
CPC分类号： G11B19/20 , G11B19/00
摘要： In order to raise the drive efficiency of a spindle motor that drives a recording disk for information recording and hence to achieve power saving/lowering of noise level of the information recording device as a whole, in an information recording device wherein a synchronous motor is employed as the spindle motor that drives the recording disk for information recording, and wherein the head is accessed for purposes of reading or writing information at a designated position on the recording disk, with change in mechanical output of this spindle motor, the mechanical output value sought for the spindle motor is found from the head position on the recording disk before and after access, and the thus-found mechanical output value is used to adjust the electrical input to the spindle motor.
摘要翻译：为了提高驱动用于信息记录的记录盘的主轴电动机的驱动效率，从而整体上实现信息记录装置的噪声电平的功率节省/降低，在使用同步电动机的信息记录装置中作为驱动用于信息记录的记录盘的主轴电动机，并且其中，为了在记录盘上的指定位置读取或写入信息的目的而访问磁头，随着该主轴电机的机械输出的变化，寻求机械输出值对于主轴电机，从存取前后记录盘上的磁头位置找到主轴电机，由此找到的机械输出值用于调整主轴电机的电气输入。

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