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公开(公告)号：US08030804B2
公开(公告)日：2011-10-04
申请号：US12675577
申请日：2008-09-11
申请人： Toshiyuki Aso , Hiroshi Kaneshige , Akie Tanaami
发明人： Toshiyuki Aso , Hiroshi Kaneshige , Akie Tanaami
IPC分类号： H02K41/03
CPC分类号： H02K41/03 , H02K29/03 , H02K2201/06
摘要： Provided is a linear motor capable of reducing cogging. The linear motor has a field magnet part 5 having a plurality of permanent magnets 21 arranged to form N and S poles alternately; a core 14 having a plurality of salient poles 14a, 14b and 14c arranged facing the field magnet part 5; and a three-phase coil 16 wound around the salient poles 14a, 14b and 14c of the core 14. At respective sides in the moving direction of an armature having the three-phase coil 16 and the core 14, auxiliary cores 18 made of a magnetic material are provided to sandwich the armature 10. The distance P1 between a center of each auxiliary core and a center of a center salient pole 14b is set to be substantially ¼×(2N+1)×a magnetic pole pitch between N poles of the field magnet part 5 (N: an integer equal to or greater than 1).
摘要翻译： 提供能够减少齿槽的线性电动机。 线性电动机具有磁场部分5，其具有交替地形成N和S极的多个永磁体21; 具有多个与磁场部5相对配置的凸极14a，14b，14c的芯体14; 以及缠绕在芯14的凸极14a，14b和14c周围的三相线圈16.在具有三相线圈16和铁芯14的电枢的移动方向的相应侧，辅助芯18由 提供磁性材料夹住衔铁10.每个辅助芯的中心与中心凸极14b的中心之间的距离P1被设定为基本上为1/4（2N + 1）××N极之间的磁极间距 场磁体部分5（N：等于或大于1的整数）。
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公开(公告)号：US20100207464A1
公开(公告)日：2010-08-19
申请号：US12675577
申请日：2008-09-11
申请人： Toshiyuki Aso , Hiroshi Kaneshige , Akie Tanaami
发明人： Toshiyuki Aso , Hiroshi Kaneshige , Akie Tanaami
IPC分类号： H02K41/03
CPC分类号： H02K41/03 , H02K29/03 , H02K2201/06
摘要： Provided is a linear motor capable of reducing cogging.The linear motor has a field magnet part 5 having a plurality of permanent magnets 21 arranged to form N and S poles alternately; a core 14 having a plurality of salient poles 14a, 14b and 14c arranged facing the field magnet part 5; and a three-phase coil 16 wounded around the salient poles 14a, 14b and 14c of the core 14. At respective sides in the moving direction of an armature having the three-phase coil 16 and the core 14, auxiliary cores 18 of magnetic body are provided to sandwich the armature 10. The distance P1 between a center of each auxiliary core and a center of a center salient pole 14b is set to be substantially ¼×(2N+1)×a magnetic pole pitch between N-N poles of the field magnet part 5 (N: an integer equal to or greater than 1).
摘要翻译： 提供能够减少齿槽的线性电动机。 线性电动机具有磁场部分5，其具有交替地形成N和S极的多个永磁体21; 具有多个与磁场部5相对配置的凸极14a，14b，14c的芯体14; 以及缠绕在芯14的凸极14a，14b和14c周围的三相线圈16.在具有三相线圈16和铁芯14的电枢的移动方向的相应侧，磁体的辅助磁芯18 被设置为夹持电枢10.每个辅助芯的中心与中心凸极14b的中心之间的距离P1被设定为基本上为1/4×（2N + 1）×场的NN极之间的磁极间距 磁体部分5（N：等于或大于1的整数）。
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公开(公告)号：US09490686B2
公开(公告)日：2016-11-08
申请号：US13703522
申请日：2011-05-13
CPC分类号： H02K41/033 , H02K1/14 , H02K3/00 , H02K7/08 , H02K29/03 , H02K41/031 , H02K2213/03
摘要： Provided is a linear motor capable of preventing an increase in length of the armature in the moving direction and also of reducing cogging. The linear motor has a magnetic field part having a plurality of permanent magnets arranged in a straight line in such a manner that N poles and S poles are formed alternately; and an armature having a core which has a plurality of teeth arranged opposite to the magnetic field part with a gap created therebetween and a plurality of coils wound on the teeth of the core. Among the teeth with the coils wound around, a width TW1 in a relative moving direction of each of teeth placed at both ends in the relative moving direction of the armature is smaller, from a base part to an end part thereof, than a width TW2 in the relative moving direction of each of other teeth.
摘要翻译： 提供一种线性电动机，其能够防止电枢在移动方向上的长度增加，并且还能够减少齿槽。 线性电动机具有磁极部，该磁场部具有以直线排列成多个永久磁铁，以使N极和S极交替地形成; 以及具有芯的电枢，所述电枢具有与磁场部分相对设置的多个齿，其间形成有间隙，并且多个线圈缠绕在所述磁芯的齿上。 在缠绕有线圈的齿中，相对于衔铁的相对移动方向的两端放置的齿的相对移动方向的宽度TW1从基部到端部比宽度TW2小 在每个其他齿的相对移动方向上。
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公开(公告)号：US20130082544A1
公开(公告)日：2013-04-04
申请号：US13703522
申请日：2011-05-13
IPC分类号： H02K3/00
CPC分类号： H02K41/033 , H02K1/14 , H02K3/00 , H02K7/08 , H02K29/03 , H02K41/031 , H02K2213/03
摘要： Provided is a linear motor capable of preventing an increase in length of the armature in the moving direction and also of reducing cogging. The linear motor has a magnetic field part having a plurality of permanent magnets arranged in a straight line in such a manner that N poles and S poles are formed alternately; and an armature having a core which has a plurality of teeth arranged opposite to the magnetic field part with a gap created therebetween and a plurality of coils wound on the teeth of the core. Among the teeth with the coils wound around, a width TW1 in a relative moving direction of each of teeth placed at both ends in the relative moving direction of the armature is smaller, from a base part to an end part thereof, than a width TW2 in the relative moving direction of each of other teeth.
摘要翻译： 提供一种线性电动机，其能够防止电枢在移动方向上的长度增加，并且还能够减少齿槽。 线性电动机具有磁极部，该磁场部具有以直线排列成多个永久磁铁，以使N极和S极交替地形成; 以及具有芯的电枢，所述电枢具有与磁场部分相对设置的多个齿，其间形成有间隙，并且多个线圈缠绕在所述磁芯的齿上。 在缠绕有线圈的齿中，相对于衔铁的相对移动方向的两端放置的齿的相对移动方向的宽度TW1从基部到端部比宽度TW2小 在每个其他齿的相对移动方向上。
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