公开(公告)号：US20090261680A1

公开(公告)日：2009-10-22

申请号：US12421863

申请日：2009-04-10

申请人： Yoichi OKI ,  Masahiro Jyono ,  Takao Yoshitsugu

发明人： Yoichi OKI ,  Masahiro Jyono ,  Takao Yoshitsugu

IPC分类号： H02K3/28

CPC分类号： H02K1/148 ,  G11B19/2009

摘要： With a spindle motor 20, a stator core 8 comprises a plurality of salient pole portions 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch region, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole portions 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch region of the salient pole portions 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch region where the salient pole portions 51 are formed.

摘要翻译： 在主轴电动机20中，定子铁芯8包括多个形成为径向形状的凸极部51，卷绕有定子线圈9，除了非等角度的间距区域以外，以均匀的角度配置， 形成为与突极部51的外周侧连续的圆形外周磁轭52，切除部55，其通过将外周磁轭52的一部分以大致扇形形状切除而形成，除了 凸极部分51的非等角度间距区域和沿着非极性间距区域的内侧的端部设置在切口55中的补偿极板11，其中凸极部分51是 形成。

公开(公告)号：US20070090716A1

公开(公告)日：2007-04-26

申请号：US11524247

申请日：2006-09-21

申请人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

发明人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

IPC分类号： G11B17/02 ,  H02K1/00 ,  H02K1/12

CPC分类号： H02K1/148 ,  G11B19/2009

摘要： With a spindle motor 20, a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch portion, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole components 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch portion of the salient pole components 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch portion where the salient pole components 51 are formed.

摘要翻译： 在主轴电动机20中，定子铁芯8包括形成为径向形状的多个凸极部件51，卷绕有定子线圈9，并且除非非等距节距部分以均匀的角度配置， 形成为与突极部件51的外周侧连续的圆形外周磁轭52，切除部55，其通过将外周磁轭52的一部分切除成大致扇形，除了 突极部件51的非等角度节距部分和沿非极性节距部分的内周侧的端部设置在切口55中的补偿极板11，其中凸极部件51是 形成。

公开(公告)号：US07898129B2

公开(公告)日：2011-03-01

申请号：US12421863

申请日：2009-04-10

申请人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

发明人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

IPC分类号： H02K1/14 ,  H02K1/16 ,  G11B19/20 ,  G11B23/03

CPC分类号： H02K1/148 ,  G11B19/2009

摘要： With a spindle motor, a stator core comprises a plurality of salient pole portions that are formed in a radial shape, are wound with a stator coil, and are disposed at a uniform angle except for a non-equiangular pitch region, a circular outer peripheral yoke formed so as to be continuous with the outer peripheral side of the salient pole portions, a cut-out which is formed by cutting out part of the outer peripheral yoke in an approximate sector-shape except in the non-equiangular pitch region of the salient pole portions, and a compensating pole plate which is provided in the cut-out along the ends on the inner peripheral side of the non-equiangular pitch region where the salient pole portions are formed.

摘要翻译： 在主轴电动机中，定子铁芯包括形成为径向形状的多个凸极部分，用定子线圈缠绕，并且除了非等角度间距区域之外以均匀的角度设置，圆形外周 形成为与凸极部的外周侧连续的磁轭，切除部，其除了在外侧磁轭的非等角度的间距区域外以大致的扇形形状切出外周磁轭的一部分而形成 凸极部分和沿着形成有突极部分的非等角度间距区域的内周侧的端部设置在切口中的补偿极板。

公开(公告)号：US07839044B2

公开(公告)日：2010-11-23

申请号：US12053069

申请日：2008-03-21

申请人： Yoichi Oki ,  Masahiro Jono

发明人： Yoichi Oki ,  Masahiro Jono

IPC分类号： H02K21/12

CPC分类号： H02K1/2733 ,  G11B19/2009 ,  H01F41/028 ,  Y10T29/49012

摘要： An object of the present invention is to provide a rotor magnet that is capable of adjusting attraction of magnet that is mounted in a spindle motor, a spindle motor including the same, a recording and reproducing apparatus, and a jig for manufacturing the same, with a simple configuration. A rotor magnet is an approximately annular member that is attached to a rotor hub rotating around a shaft forming a part of a spindle motor. The rotor magnet is magnetized such that magnetization properties of axially top and bottom surfaces of the rotor magnet are different from each other.

摘要翻译： 本发明的目的是提供一种转子磁体，其能够调节安装在主轴电动机中的磁体的吸引力，包括该转子磁体的主轴电动机，记录和再现装置以及用于制造该电动机的夹具， 一个简单的配置。 转子磁体是大致环形的构件，其附接到围绕形成主轴电机的一部分的轴线旋转的转子轮毂。 转子磁体被磁化，使得转子磁体的轴向顶表面和底表面的磁化特性彼此不同。

公开(公告)号：US07535134B2

公开(公告)日：2009-05-19

申请号：US11524247

申请日：2006-09-21

申请人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

发明人： Yoichi Oki ,  Masahiro Jyono ,  Takao Yoshitsugu

IPC分类号： H02K1/14 ,  H02K1/16 ,  G11B23/03 ,  G11B19/20

CPC分类号： H02K1/148 ,  G11B19/2009

摘要： With a spindle motor 20, a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch portion, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole components 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch portion of the salient pole components 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch portion where the salient pole components 51 are formed.

摘要翻译： 在主轴电动机20中，定子铁芯8包括形成为径向形状的多个凸极部件51，卷绕有定子线圈9，并且除非非等距节距部分以均匀的角度配置， 形成为与突极部件51的外周侧连续的圆形外周磁轭52，切除部55，其通过将外周磁轭52的一部分切除成大致扇形，除了 突极部件51的非等角度节距部分和沿非极性节距部分的内周侧的端部设置在切口55中的补偿极板11，其中凸极部件51是 形成。

公开(公告)号：US20080231989A1

公开(公告)日：2008-09-25

申请号：US12053069

申请日：2008-03-21

申请人： Yoichi OKI ,  Masahiro JONO

发明人： Yoichi OKI ,  Masahiro JONO

IPC分类号： G11B5/012 ,  H01F7/00 ,  H02K7/09 ,  H02K1/27

CPC分类号： H02K1/2733 ,  G11B19/2009 ,  H01F41/028 ,  Y10T29/49012

摘要： An object of the present invention is to provide a rotor magnet that is capable of adjusting attraction of magnet that is mounted in a spindle motor, a spindle motor including the same, a recording and reproducing apparatus, and a jig for manufacturing the same, with a simple configuration. A rotor magnet 7 is an approximately annular member that is attached to a rotor hub 6 rotating around a shaft 1 forming a part of a spindle motor 20. The rotor magnet 7 is magnetized such that magnetization properties of axially top and bottom surfaces 7b and 7c of the rotor magnet 7 are different from each other.

摘要翻译： 本发明的目的是提供一种转子磁体，其能够调节安装在主轴电动机中的磁体的吸引力，包括该转子磁体的主轴电动机，记录和再现装置以及用于制造该电动机的夹具， 一个简单的配置。 转子磁体7是大致环形的构件，其附接到绕构成主轴电动机20的一部分的轴1旋转的转子轮毂6.转子磁体7被磁化，使得轴向顶面和底面7b和 转子磁体7的7c彼此不同。

公开(公告)号：US20060031864A1

公开(公告)日：2006-02-09

申请号：US11196734

申请日：2005-08-04

申请人： Hiroyuki Kiriyama ,  Toshiyuki Iwahori ,  Hitoshi Fujino ,  Yoichi Oki

发明人： Hiroyuki Kiriyama ,  Toshiyuki Iwahori ,  Hitoshi Fujino ,  Yoichi Oki

IPC分类号： G11B7/08

CPC分类号： G11B19/2009

摘要： The present invention provides a small and thin spindle motor in which no uneven pressure is applied to a recording medium when the recording medium is fixed to a hub, a disc driving apparatus having the spindle motor, and a production method thereof. The spindle motor comprises: a sleeve which is supported by a fixed shaft and rotates around a predetermined axis; and a hub provided on an outer peripheral portion of the sleeve, which includes: a tubular portion to be inserted into a central hole of a recording medium having a disc shape, which is coaxial with the sleeve and has a male thread formed on an outer peripheral surface; and a first receiving surface which is connected to the tubular portion and which holds the recording medium to the axis.

摘要翻译： 本发明提供一种小而薄的主轴电动机，其中当记录介质固定在轮毂上时，不会对记录介质施加不均匀的压力，具有主轴电动机的盘驱动装置及其制造方法。 主轴电动机包括：由固定轴支撑并围绕预定轴线旋转的套筒; 以及设置在所述套筒的外周部上的毂，其包括：插入到具有与所述套筒同轴的盘形状的记录介质的中心孔的管状部分，并且具有形成在外部的外螺纹 周边表面; 以及第一接收表面，其连接到管状部分并且将记录介质保持在轴线上。