公开(公告)号：US07307501B2

公开(公告)日：2007-12-11

申请号：US11076118

申请日：2005-03-09

申请人： Yuhito Doi

发明人： Yuhito Doi

IPC分类号： H01F7/02

CPC分类号： B65D21/0205 ,  H01F7/0221 ,  H01F41/0253

摘要： It is an object of the present invention to provide a package for permanent magnets in which the amount of magnetic field that leaks externally is reduced, and that is stable. There is provided a permanent magnet package 1 comprising: a plurality of magnet rows, wherein each of the magnet rows comprises a plurality of permanent magnets 2, wherein the magnetization direction of all the permanent magnets in a single magnet row is the same, and is parallel to the magnet row, and wherein the plurality of the magnet rows are arranged such that the magnetization direction of adjacent rows is opposite; and the method for manufacturing the same.

摘要翻译： 本发明的目的是提供一种用于永磁体的封装，其中外部泄漏的磁场量减少，并且是稳定的。 提供了一种永磁体包装1，其包括：多个磁体列，其中每个磁体行包括多个永磁体2，其中单个磁体列中的所有永磁体的磁化方向相同，并且是 平行于磁体列，并且其中所述多个磁体行被布置成使得相邻行的磁化方向相反; 及其制造方法。

公开(公告)号：US06924722B2

公开(公告)日：2005-08-02

申请号：US11006874

申请日：2004-12-08

申请人： Yuhito Doi ,  Koji Miyata ,  Dai Higuchi

发明人： Yuhito Doi ,  Koji Miyata ,  Dai Higuchi

IPC分类号： A61B5/055 ,  G01R33/383 ,  H01F1/057 ,  H01F7/02

CPC分类号： G01R33/383 ,  H01F1/057 ,  H01F7/0278

摘要： To reduce the cost of the magnet of magnetic circuits with opposing permanent magnets by ensuring that inexpensive magnets having a low coercive force can be used without substantial loss of magnetism caused by demagnetization fields, there is provided a magnetic circuit with opposing permanent magnets, comprising: a pair of permanent magnet units opposing each other across a gap, the pair of permanent magnets being magnetized in thickness direction, wherein each of the permanent magnet units comprises at least two types of permanent magnet pieces with different coercive forces, and wherein, the permanent magnet piece that receives the largest demagnetization force when the permanent magnet units are manufactured has a larger coercive force than at least one other type of the permanent magnet piece; a yoke magnetically coupled to the permanent magnet units, and provided outside of the permanent magnet units and the gap; and a pair of pole pieces each arranged on a gap side of an opposing surface of each of the permanent magnet units and having a peripheral projection in opposing direction.

摘要翻译： 为了通过确保可以使用具有低矫顽磁力的廉价磁体而不会因退磁场造成实质上的磁性损失而降低具有相对永磁体的磁路的磁体的成本，提供了一种具有相对的永磁体的磁路，包括： 一对永磁体单元，跨越间隙彼此相对，所述一对永磁体在厚度方向上被磁化，其中每个所述永磁体单元包括至少两种具有不同矫顽力的永磁体块，并且其中，所述永磁体 当制造永磁体单元时，接收最大去磁力的磁体片具有比至少另一类型的永久磁铁片更大的矫顽力; 磁性地耦合到永磁体单元的轭，并且设置在永磁体单元和间隙的外部; 以及一对极片，每个极片布置在每个永磁体单元的相对表面的间隙侧上，并且具有相反方向的周边突起。