公开(公告)号：KR1020080015564A

公开(公告)日：2008-02-20

申请号：KR1020060077032

申请日：2006-08-16

Applicant: 삼성전자주식회사 ,  자화전자(주)

Inventor： 신두식 ,  설진수 ,  신정길 ,  이종필 ,  정영빈

IPC: H02K7/06 ,  H02K37/24 ,  H02K37/12

CPC classification number: H02K21/145 ,  H02K1/2733 ,  H02K7/06

Abstract: A stepping motor is provided to transmit power even in a slimed volume by converting transmitted rotatory power into linear advance and retreat movement with a shift as a main driving axis to transmit the rotatory power, thereby being applied to small portable digital instruments and digital camera. A stepping motor comprises a rotation unit(130) and a yoke unit. The rotation unit includes a ring-shaped permanent magnet(133), a pipe-shaped coupling member, and a shift(131). The pipe-shaped coupling member is inserted into a center of the permanent magnet and has a screw thread on an inner circumferential surface. The shift advances and retreats along the screw thread by being screw-coupled to the screw thread of the coupling member. The yoke unit includes a ring-shaped bobbin(143), upper and lower yokes(141,142), and electromagnetic coils(141a,142b). The ring-shaped bobbin surrounds a lateral surface of the permanent magnet. The upper and lower yokes are coupled symmetrically up and down about the bobbin and have a plurality of teeth or tooth units(141b,142a) protruded toward the bobbin side. The electromagnetic coils surround circumferences of the teeth or tooth units.

Abstract translation: 通过将传递的旋转动力转换为线性前进和后退运动，通过将移动作为主要驱动轴来传递旋转动力来提供步进马达，即使在薄型体积中传递动力，从而适用于小型便携式数字乐器和数码相机。 步进电机包括旋转单元（130）和轭单元。 旋转单元包括环形永磁体（133），管状联接构件和偏移（131）。 管状联接构件插入到永磁体的中心，并且在内周面上具有螺纹。 通过螺纹连接到联接构件的螺纹，该移动沿着螺纹前进和后退。 轭单元包括环形绕线筒（143），上轭铁（141,142）和电磁线圈（141a，142b）。 环形绕线筒环绕永久磁铁的侧面。 上轭架和下轭架绕线轴对称地上下耦合，并具有朝向筒管侧突出的多个齿或齿单元（141b，142a）。 电磁线圈围绕齿或齿单元的周围。