公开(公告)号：US09030061B2

公开(公告)日：2015-05-12

申请号：US14296576

申请日：2014-06-05

申请人： Via Mechanics, Ltd.

发明人： Akihiro Yamamoto ,  Akira Doi ,  Daisuke Matsuka ,  Souichi Toyama ,  Hiroyuki Sugawara

IPC分类号： H02K33/00 ,  G02B26/08 ,  G02B26/10 ,  H02K1/27 ,  H02K26/00 ,  H02K21/14 ,  H02K21/12

CPC分类号： H02K33/00 ,  G02B26/105 ,  H02K1/276 ,  H02K1/2766 ,  H02K21/12 ,  H02K21/14 ,  H02K26/00 ,  H02K2213/03

摘要： A galvanoscanner including: a rotor including a shaft as a rotational center, and permanent magnets disposed around the shaft and polarized to a plurality of poles in a circumferential direction of the shaft; and a stator disposed in the outside of the rotor through a clearance and including coils, a yoke, and an outer casing so that the rotor swings in a predetermined angle range; wherein: the permanent magnets are provided with grooves which are formed in a direction of the rotation shaft so as to straddle circumferentially adjacent magnetic poles of the permanent magnets; and the permanent magnets are parted into at least two parts per pole by parting lines. Thus, the ratio of the torque constant to the moment of inertia can be improved so that the current required for driving can be reduced and reduction of power consumption at driving time can be attained.

公开(公告)号：US09030060B2

公开(公告)日：2015-05-12

申请号：US14296523

申请日：2014-06-05

申请人： Via Mechanics, Ltd.

发明人： Akihiro Yamamoto ,  Akira Doi ,  Daisuke Matsuka ,  Souichi Toyama ,  Hiroyuki Sugawara

IPC分类号： H02K33/00 ,  G02B26/10 ,  H02K1/27 ,  H02K26/00 ,  H02K21/14 ,  H02K21/12

CPC分类号： H02K33/00 ,  G02B26/105 ,  H02K1/276 ,  H02K1/2766 ,  H02K21/12 ,  H02K21/14 ,  H02K26/00 ,  H02K2213/03

摘要： A galvanoscanner including: a rotor including a shaft as a rotational center, and permanent magnets disposed around the shaft and polarized to a plurality of poles in a circumferential direction of the shaft; and a stator disposed in the outside of the rotor through a clearance and including coils, a yoke, and an outer casing so that the rotor swings in a predetermined angle range; wherein: the permanent magnets are provided with grooves which are formed in a direction of the rotation shaft so as to straddle circumferentially adjacent magnetic poles of the permanent magnets; and the permanent magnets are parted into at least two parts per pole by parting lines. Thus, the ratio of the torque constant to the moment of inertia can be improved so that the current required for driving can be reduced and reduction of power consumption at driving time can be attained.

摘要翻译： 一种电流扫描器，包括：转子，其包括作为旋转中心的轴，以及设置在所述轴周围并沿着所述轴的圆周方向偏振到多个极的永磁体; 以及定子，其通过间隙设置在转子的外侧，并且包括线圈，轭和外壳，使得转子在预定角度范围内摆动; 其特征在于，所述永久磁铁具有沿着所述旋转轴的方向形成为沿所述永久磁铁的周向相邻的磁极跨越的槽; 并且通过分离线将永磁体分成每个极点至少两个部分。 因此，能够提高转矩常数与转动惯量的比例，能够降低驱动所需的电流，并且能够实现驱动时的功耗的降低。