Powder magnetic core and the method of manufacturing the same
    10.
    发明授权
    Powder magnetic core and the method of manufacturing the same 有权
    粉末磁芯及其制造方法

    公开(公告)号:US08974608B2

    公开(公告)日:2015-03-10

    申请号:US12081490

    申请日:2008-04-16

    摘要: A powder magnetic core with improved high frequency magnetic characteristics and reduced eddy current loss is manufactured by a manufacturing method including the steps of (a) providing coated soft magnetic particles which are particles composed of soft magnetic material which each have been coated with an insulating coating, and insulator particles; (b) forming a magnetic layer by press molding the coated soft magnetic particles in a mold assembly; (c) forming an insulator layer on the magnetic layer by press molding the insulator particles in the mold assembly; and (d) repeating the steps (b) and (c) to fabricate a laminate of alternating magnetic layers and insulator layers and provide the powder magnetic core.

    摘要翻译: 通过制造方法制造具有改善的高频磁特性和降低的涡流损耗的粉末磁芯,其包括以下步骤:(a)提供涂覆的软磁性颗粒,其是由软磁性材料构成的颗粒,每个软磁性颗粒均涂覆有绝缘涂层 ,和绝缘体颗粒; (b)通过在模具组件中压制成型所涂覆的软磁性颗粒来形成磁性层; (c)通过在所述模具组件中压模所述绝缘体颗粒在所述磁性层上形成绝缘体层; 和(d)重复步骤(b)和(c)以制造交替磁层和绝缘体层的叠层,并提供粉末磁芯。