发明授权
US07750776B2 Anisotropic bonded magnet for use in a 4-pole motor, a motor employing that magnet, and an alignment process apparatus for the anisotropic bonded magnet for use in a 4-pole motor
失效
用于4极电动机的各向异性粘结磁体，使用该磁体的电动机以及用于4极电动机的各向异性粘结磁体的对准处理装置
- 专利标题： Anisotropic bonded magnet for use in a 4-pole motor, a motor employing that magnet, and an alignment process apparatus for the anisotropic bonded magnet for use in a 4-pole motor
- 专利标题（中）： 用于4极电动机的各向异性粘结磁体，使用该磁体的电动机以及用于4极电动机的各向异性粘结磁体的对准处理装置
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申请号： US12320686申请日： 2009-02-02
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公开(公告)号： US07750776B2公开(公告)日： 2010-07-06
- 发明人: Yoshinobu Honkura , Hiroshi Matsuoka , Masahiko Kato , Daisuke Nagaya
- 申请人： Yoshinobu Honkura , Hiroshi Matsuoka , Masahiko Kato , Daisuke Nagaya
- 申请人地址： JP Aichi-ken
- 专利权人： Aichi Steel Corporation
- 当前专利权人： Aichi Steel Corporation
- 当前专利权人地址： JP Aichi-ken
- 代理机构： McGinn IP Law Group, PLLC
- 主分类号： H01F7/02
- IPC分类号： H01F7/02
摘要：
A hollow cylindrically shaped anisotropic bonded magnet for use in a 4-pole motor, is formed by molding anisotropic rare-earth magnet powder with resin. The alignment distribution of the anisotropic rare-earth magnet powder in a cross section perpendicular to the axis of the anisotropic bonded magnet is in the normalized direction of the cylindrical side of the hollow cylindrical shape in the main region of a polar period, and in a transition region in which the direction of the magnetic pole changes, steadily points towards a direction tangential to the periphery of the cylindrical side at points closer to the neutral point of the magnetic pole, and becomes a direction tangential to the periphery of the cylindrical side at that neutral point, and steadily points toward the normalized direction of the cylindrical side at points farther away from the neutral point.