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发明授权
CN107658090B 软磁性金属压粉磁芯及具备软磁性金属压粉磁芯的电抗器 有权

软磁性金属压粉磁芯及具备软磁性金属压粉磁芯的电抗器
摘要：
本发明提供一种软磁性金属压粉磁芯，其特征在于，该软磁性金属压粉磁芯含有软磁性金属粉末和非磁性体，在上述软磁性金属压粉磁芯的研磨后的平滑的截面中，在观察了包含n个以上(n为50以上的自然数)上述软磁性金属粉末的颗粒的视野的情况下，上述软磁性金属粉末由上述非磁性体包覆，上述软磁性金属粉末的颗粒间距离为400nm以下的连续的部分的长度L为10μm以上的相对部分P存在n/2个以上。根据本发明，可得到直流叠加特性优异的软磁性金属压粉磁芯。
摘要（英）：

A soft magnetic metal dust core including a soft magnetic metal powder (11) and a nonmagnetic material (12), in which when observing a field of view including "n", a natural number of 50 or more, particles of the soft magnetic metal powder (11) on a grinded smooth cross section of the dust core, the soft magnetic metal powder (11) is coated by the nonmagnetic material (12), and a number of an opposing part P (15) is n/2 or more, in which the opposing part P (15) is a part where a length L (14) is 10 µm or more, and the length L (14) is a continuous length where a distance (13) between particles of the soft magnetic metal powder is 400 nm or less, is provided. The soft magnetic metal dust core is superior in DC superimposing characteristic.

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