公开(公告)号：US20150228390A1

公开(公告)日：2015-08-13

申请号：US14419516

申请日：2013-09-10

申请人： MAGNETIC COMPONENTS SWEDEN AB

发明人： Óscar H. Bjarnasen ,  Tord Cedell

IPC分类号： H01F5/06 ,  H01F41/06 ,  H01F41/02 ,  H01F27/28 ,  H01F27/32

CPC分类号： H01F5/06 ,  H01F3/08 ,  H01F5/00 ,  H01F17/04 ,  H01F27/255 ,  H01F27/2823 ,  H01F27/2876 ,  H01F27/32 ,  H01F41/0246 ,  H01F41/0273 ,  H01F41/073 ,  H01F41/12 ,  Y10T29/49071

摘要： The present invention relates to a coil (1) for an inductor (6), comprised by metal wire (2) wound circular around a centre axis (C), wherein the wire has an electrically insulating layer (3) insulating each turn of the wire in the winding from neighbouring turns,the shape of the complete winding, building up the coil (1), is substantially toroidal having a substantially elliptic cross section, wherein the thermal heat conductivity is above 1 W/m*K more preferably above 1,2 and most preferably above 1,5. The invention further relates to a magnetic core (7) suitable for an inductor (6), where in the core is made of a soft magnetic composite material made of metallic particles and a binder material, said particles are in the range of 1μm-1000 μm, particles that are larger than 150 are coated with a ceramic surface to provide particle to particle electrical insulation, wherein the volume of magnetic, metallic particles to total core volume is 0,5-0,9. The invention still further relates to an inductor (6) being a combination of said coil (1) and core (7), wherein the substantially all of said particles in the core are magnetically aligned with the magnetic field of the coil. The invention still further relates to the manufacturing methods of such a coil (1) and core (7).

摘要翻译： 本发明涉及一种用于电感器（6）的线圈（1），由围绕中心轴线（C）缠绕的金属线（2）组成，其中线材具有电绝缘层（3），绝缘层 在相邻匝的绕组中绕线的线圈，构成线圈（1）的整个绕组的形状基本上是环形的，具有基本上椭圆形的横截面，其中热导率高于1W / m * K，更优选高于1 ，2，最优选大于1.5。 本发明还涉及一种适用于电感器（6）的磁芯（7），其中芯由金属颗粒和粘合剂材料制成的软磁复合材料制成，所述颗粒在1μm至1000 μm，大于150的颗粒涂覆有陶瓷表面以提供颗粒到颗粒电绝缘，其中磁性金属颗粒的体积为总芯体积为0.5-0.9。 本发明还涉及一种电感器（6），其是所述线圈（1）和芯体（7）的组合，其中芯体中的所有基本上所有的颗粒与线圈的磁场磁性对准。 本发明还涉及这种线圈（1）和芯（7）的制造方法。