公开(公告)号：US20110241811A1

公开(公告)日：2011-10-06

申请号：US13132317

申请日：2009-12-03

申请人： Kohei Ihara ,  Michiya Kume ,  Muneo Yamamoto

发明人： Kohei Ihara ,  Michiya Kume ,  Muneo Yamamoto

IPC分类号： H01F7/02 ,  B22F3/03

CPC分类号： H01F41/0266 ,  H01F7/0205 ,  H01F13/003 ,  H01F41/0273 ,  H02K15/03

摘要： A cylindrical bonded magnet is provided which is multipolar-magnetized in the axial direction and can be produced with high productivity. The cylindrical bonded magnet includes magnetic powder and resin. The cylindrical bond magnet is an integrally formed member. The cylindrical bond magnet is magnetized so that a plurality of N and S poles are alternately provided in the axial direction. In the cylindrical bonded magnet, a totally even number of at least four N and S poles are alternately provided. The surface magnetic flux density distribution has a substantially sinusoidal wave with the both ends of the sinusoidal wave corresponding to nodes when the surface magnetic flux of the cylindrical bonded magnet is measured as viewed from the side surface of the cylindrical bond magnet along the axial direction.

摘要翻译： 提供了一种圆柱形粘结磁体，其在轴向方向上被多极化，并且可以以高生产率制造。 圆柱形粘结磁体包括磁粉和树脂。 圆柱形粘结磁体是整体形成的部件。 圆柱形接合磁体被磁化，使得在轴向上交替地设置多个N极和S极。 在圆柱形粘结磁体中，交替地设置至少四个N极和S极的全偶数个。 当圆柱形粘结磁体的表面磁通量从圆柱形粘结磁体的侧表面沿着轴向方向观察时，表面磁通密度分布具有基本正弦波，正弦波的两端对应于节点。

公开(公告)号：US08643453B2

公开(公告)日：2014-02-04

申请号：US13132317

申请日：2009-12-03

申请人： Kohei Ihara ,  Michiya Kume ,  Muneo Yamamoto

发明人： Kohei Ihara ,  Michiya Kume ,  Muneo Yamamoto

IPC分类号： H01F7/02 ,  H01F7/00 ,  H02K21/00

CPC分类号： H01F41/0266 ,  H01F7/0205 ,  H01F13/003 ,  H01F41/0273 ,  H02K15/03

摘要： A cylindrical bonded magnet is provided which is multipolar-magnetized in the axial direction and can be produced with high productivity. The cylindrical bonded magnet includes magnetic powder and resin. The cylindrical bond magnet is an integrally formed member. The cylindrical bond magnet is magnetized so that a plurality of N and S poles are alternately provided in the axial direction. In the cylindrical bonded magnet, a totally even number of at least four N and S poles are alternately provided. The surface magnetic flux density distribution has a substantially sinusoidal wave with the both ends of the sinusoidal wave corresponding to nodes when the surface magnetic flux of the cylindrical bonded magnet is measured as viewed from the side surface of the cylindrical bond magnet along the axial direction.

摘要翻译： 提供了一种圆柱形粘结磁体，其在轴向方向上被多极化，并且可以以高生产率制造。 圆柱形粘结磁体包括磁粉和树脂。 圆柱形粘结磁体是整体形成的部件。 圆柱形接合磁体被磁化，使得在轴向上交替地设置多个N极和S极。 在圆柱形粘结磁体中，交替地设置至少四个N极和S极的全偶数个。 当圆柱形粘结磁体的表面磁通量从圆柱形粘结磁体的侧表面沿着轴向方向观察时，表面磁通密度分布具有基本正弦波，正弦波的两端对应于节点。

公开(公告)号：US08830019B2

公开(公告)日：2014-09-09

申请号：US13822636

申请日：2011-09-27

申请人： Kohei Ihara ,  Syuji Matsumura ,  Keiki Nishino

发明人： Kohei Ihara ,  Syuji Matsumura ,  Keiki Nishino

IPC分类号： H01F1/00 ,  H02K33/16 ,  H01F7/02 ,  H02K1/34 ,  H01F7/08 ,  H02K15/03

CPC分类号： H01F7/02 ,  H01F7/0278 ,  H01F7/081 ,  H02K1/34 ,  H02K15/03 ,  H02K33/16

摘要： The structure includes cylindrical columnar and tubular bonded magnets. The columnar magnet has at least one pair of N and S poles that are alternately produced in the longitudinal direction. The tubular magnet surrounds the columnar magnet, and has at least one pair of N and S poles that are alternately produced in the longitudinal direction. Poles of the columnar and tubular magnets that are opposed to each other in the direction perpendicular to the axis of the columnar magnet as the propulsion force direction are of opposite magnetic polarity so that magnetic fields are produced in the direction perpendicular to the propulsion force direction. The surface magnetic flux density profile balance can be smoothed by adjusting higher and lower parts of the profiles of the columnar and tubular magnets.

摘要翻译： 该结构包括圆柱形和管状粘结磁体。 柱状磁体具有在纵向交替地产生的至少一对N极和S极。 管状磁体围绕柱状磁体，并且具有沿纵向方向交替产生的至少一对N极和S极。 在作为推进力方向的垂直于柱状磁体的轴线的方向上彼此相对的柱状和管状磁体的极性具有相反的磁极性，使得在与推进力方向垂直的方向上产生磁场。 可以通过调整柱状和管状磁体的轮廓的较高和较低部分来平滑表面磁通密度分布平衡。

公开(公告)号：US20130169395A1

公开(公告)日：2013-07-04

申请号：US13822636

申请日：2011-09-27

申请人： Kohei Ihara ,  Syuji Matsumura ,  Keiki Nishino

发明人： Kohei Ihara ,  Syuji Matsumura ,  Keiki Nishino

IPC分类号： H01F7/02

CPC分类号： H01F7/02 ,  H01F7/0278 ,  H01F7/081 ,  H02K1/34 ,  H02K15/03 ,  H02K33/16

摘要： The structure includes cylindrical columnar and tubular bonded magnets. The columnar magnet has at least one pair of N and S poles that are alternately produced in the longitudinal direction. The tubular magnet surrounds the columnar magnet, and has at least one pair of N and S poles that are alternately produced in the longitudinal direction. Poles of the columnar and tubular magnets that are opposed to each other in the direction perpendicular to the axis of the columnar magnet as the propulsion force direction are of opposite magnetic polarity so that magnetic fields are produced in the direction perpendicular to the propulsion force direction. The surface magnetic flux density profile balance can be smoothed by adjusting higher and lower parts of the profiles of the columnar and tubular magnets.

摘要翻译： 该结构包括圆柱形和管状粘结磁体。 柱状磁体具有在纵向交替地产生的至少一对N极和S极。 管状磁体围绕柱状磁体，并且具有沿纵向方向交替产生的至少一对N极和S极。 在作为推进力方向的垂直于柱状磁体的轴线的方向上彼此相对的柱状和管状磁体的极性具有相反的磁极性，使得在与推进力方向垂直的方向上产生磁场。 可以通过调整柱状和管状磁体的轮廓的较高和较低部分来平滑表面磁通密度分布平衡。