MOTOR, MOTOR SYSTEM, AND MOTOR ENCODER

专利名称：MOTOR, MOTOR SYSTEM, AND MOTOR

ENCODER

发明人：YOSHIDOMI, Shirou,MUROKITA, Ikuma申请号：EP11877960.2申请日：20111221公开号：EP2797210A1公开日：20141029

专利附图：

摘要：A motor according to an embodiment includes a motor body, a rotating body,and a magnetic field sensor. The motor body rotates a shaft about the axis line thereof.The rotating body includes a permanent magnet with the long direction thereof serving

as the magnetization direction and rotates along with the rotation of the shaft. Themagnetic field sensor includes a magnet body having a large Barkhausen effect with thelong direction thereof serving as the easy magnetization direction and is positioned toface the permanent magnet when the rotational position of the rotating body is at agiven rotational position. The magnetization direction of the permanent magnet and theeasy magnetization direction of the magnetic body are in a direction along a planeorthogonal to the rotation center line of the rotating body.

申请人：Kabushiki Kaisha Yaskawa Denki

地址：2-1, Kurosaki-shiroishi Yahatanishi-ku Kitakyushu-shi, Fukuoka 806-0004 JP

国籍：JP

代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser

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