公开(公告)号：EP3288044A1

公开(公告)日：2018-02-28

申请号：EP16782533.0

申请日：2016-03-25

申请人： Hengdian Group DMEGC Magnetics Co. Ltd.

发明人： ZHAO, Xu ,  GU, Xiaojian ,  LU, Feixiang ,  ZHANG, Xueqiang

IPC分类号： H01F1/34 ,  C04B35/26

CPC分类号： C04B35/2658 ,  C04B35/62645 ,  C04B35/62695 ,  C04B2235/3208 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3418 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/6567 ,  C04B2235/6584 ,  H01F1/34

摘要： The invention discloses a soft-magnetic MnZn system power ferrite, and aims at providing a soft-magnetic MnZn system power ferrite with high saturation magnetic flux density and low loss. The soft-magnetic MnZn system power ferrite comprises a main component and an auxiliary component; the main component comprises Fe 2 O 3 , MnO, ZnO and NiO; calculated on the basis of the total weight of the main component, Fe 2 O 3 accounts for 53.0-55.0mol%, ZnO accounts for 3.0-7.0mol%, NiO accounts for 0-1.0mol%, and MnO accounts for the balance; and the auxiliary component comprises CoO, SiO 2 , CaCO 3 , Nb 2 O 5 and ZrO 2 . The soft-magnetic MnZn system power ferrite has the beneficial effects that the saturation magnetic flux density Bs at 100°C is larger than 460mT, and the magnetic core loss Pcv at 100°C is smaller than 320kW/m 3 ; the soft-magnetic MnZn system power ferrite has such favorable performance, so that a device can be further miniaturized in the actual application of a product; and because of rather low loss, the work efficiency of the device can also be further increased.

摘要翻译： 本发明公开了一种软磁MnZn系功率铁氧体，旨在提供一种具有高饱和磁感应强度和低损耗的软磁MnZn系功率铁氧体。 软磁MnZn系功率铁氧体包括主元件和辅助元件， 主要成分包括Fe2O3，MnO，ZnO和NiO; 以主成分的总重量为基准计算，Fe2O3占53.0-55.0mol％，ZnO占3.0-7.0mol％，NiO占0-1.0mol％，MnO占余量; 辅助成分包括CoO，SiO2，CaCO3，Nb2O5和ZrO2。 软磁MnZn系功率铁氧体具有如下有益效果：100℃时的饱和磁通密度Bs大于460mT，100℃时的磁芯损耗Pcv小于320kW / m3; 软磁MnZn系功率铁氧体具有如此良好的性能，使得器件在实际应用中可以进一步小型化; 并且由于损失相当低，所以装置的工作效率也可以进一步提高。