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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
发明人： ZHAO, Xu , GU, Xiaojian , LU, Feixiang , ZHANG, Xueqiang
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。
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公开(公告)号：EP4383286A1
公开(公告)日：2024-06-12
申请号：EP22868909.7
申请日：2022-08-12
发明人： LU, Feixiang , WU, Yuejie , CHEN, Jiawei , DU, Jiahao , HUANG, Qingchun
摘要： Disclosed herein are a transmitting end magnetic core and a preparation method therefor. The transmitting end magnetic core comprises a magnetic core body, the magnetic core body being a flat disk structure; a winding center column is disposed on an end surface of one side of the magnetic core body, the winding center column being used for winding a magnetic induction coil; a winding groove is penetratingly disposed on the magnetic core body, one end of the winding groove being located on the winding center column or the magnetic core body, and the other end penetrating through the edge of the magnetic core body; an outer wall is circumferentially arranged at the edge of the end surface of the same side of the magnetic core body as the winding center column, at least one of two end portions of the outer wall along the circumferential direction of the magnetic core body disposed separated from the winding groove; and the end surface of the magnetic core body is smoothly connected to the side surface of the magnetic core body. The end surface of the magnetic core body of the transmitting end magnetic core disclosed in the present application is smoothly connected to the side surface of the magnetic core body, so that no damage is caused to an insulation layer of a wire; this eliminates a positioning groove on the back surface of the magnetic core body, simplifying a processing technique for the transmitting end magnetic core, and improving the yield of the transmitting end magnetic core.
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