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    Reactor
    5.
    发明授权
    Reactor 有权
    反应堆

    公开(公告)号：US09406430B2

    公开(公告)日：2016-08-02

    申请号：US14603051

    申请日：2015-01-22

    Applicant: TDK CORPORATION

    Inventor： Tomofumi Kuroda ,  Yu Sakurai ,  Hideyuki Itoh

    IPC: H01F17/06 ,  H01F27/29 ,  H01F27/02 ,  H01F27/28 ,  H01F27/24 ,  H01F27/34 ,  H01F3/10 ,  H01F37/00 ,  H01F3/14

    CPC classification number: H01F27/24 ,  H01F3/10 ,  H01F3/14 ,  H01F27/34 ,  H01F37/00 ,  H01F2003/106

    Abstract: A reactor using a composite magnetic core in which a ferrite core and a soft magnetic metal core are combined. The reactor is composed of a pair of yoke portion magnetic portions composed of a ferrite core, winding portion core(s) disposed between the opposite planes of the yoke portion cores, and coil(s) wound around the winding portion core(s). The winding portion core(s) is/are made of a soft magnetic metal core, and the cross sectional area of the part for winding the coil of the winding portion core is substantially constant. When the cross sectional area of the part for winding the coil of the winding portion core is set as S1, and the area of the parts opposite to the yoke portion cores in the winding portion core(s) is set as S2, the area ratio S2/S1 is set to be 1.3 to 4.0.

    Abstract translation: 使用其中组合有铁氧体磁芯和软磁金属芯的复合磁芯的电抗器。 电抗器由一对轭铁部分磁性部分组成，该部分由铁氧体磁芯，设置在轭铁芯的相对平面之间的绕组部分磁芯和卷绕在绕组部分磁芯上的线圈组成。 绕组部分芯由软磁金属芯构成，用于缠绕绕组部分芯的线圈的部分的横截面积基本上恒定。 当绕组部分芯部的线圈的卷绕部分的横截面面积被设定为S1，并且将绕线部分芯部中与磁轭部分芯相对的部分的面积设定为S2时，面积比 S2 / S1设定为1.3〜4.0。

    Production method of soft magnetic metal powder
    6.
    发明授权
    Production method of soft magnetic metal powder 有权

    公开(公告)号：US10607757B1

    公开(公告)日：2020-03-31

    申请号：US15639001

    申请日：2017-06-30

    Applicant: TDK CORPORATION

    Inventor： Yu Sakurai ,  Tomofumi Kuroda ,  Hideyuki Itoh

    IPC: H01F1/22 ,  H01F41/02 ,  B22F1/00 ,  C23C8/24

    Abstract: The present invention is a method of producing a soft magnetic metal powder comprising, a material powder preparation step of preparing a material powder comprising a particle including a boron and a soft magnetic metal including an iron, a first nitriding step of nitriding the boron included in said particle by carrying out a heat treatment to said material powder under a non-oxidizing atmosphere including nitrogen, and a spheroidizing step of spheroidizing said particle by carrying out a heat treatment to said material powder of after said first nitriding step under a non-oxidizing atmosphere having lower nitrogen partial pressure than a nitrogen partial pressure of the non-oxidizing atmosphere during said first nitriding step. According to the present invention, the soft magnetic metal powder comprising the particle having a shape of a complete sphere or close to complete sphere, and comprising the small standard deviation of the particle size distribution of the powder can be obtained.

    Reactor
    7.
    发明授权
    Reactor 有权
    反应堆

    公开(公告)号：US09455080B2

    公开(公告)日：2016-09-27

    申请号：US14602821

    申请日：2015-01-22

    Applicant: TDK CORPORATION

    Inventor： Tomofumi Kuroda ,  Yu Sakurai ,  Hideyuki Itoh

    IPC: H01F17/06 ,  H01F27/24 ,  H01F21/06 ,  H01F27/02 ,  H01F27/29 ,  H01F27/255 ,  H01F27/34 ,  H01F3/10 ,  H01F37/00 ,  H01F3/14

    CPC classification number: H01F27/255 ,  H01F3/10 ,  H01F3/14 ,  H01F27/34 ,  H01F37/00 ,  H01F2003/106

    Abstract: A reactor using a composite magnetic core in which a ferrite core and a soft magnetic metal core are combined. The reactor is composed of a pair of yoke portion magnetic portions composed of ferrite, winding portion core(s) disposed between the opposite planes of the yoke portion cores, and coil(s) winding around the winding portion core(s). The winding portion core(s) is/are formed using a soft magnetic metal core with a substantially constant cross sectional area. Junction portion cores composed of soft magnetic metal powder cores with a tabular shape are disposed at the spaces where the winding portion core(s) face(s) the yoke portion cores, and the area of the part where the junction portion core faces the yoke portion core is made to be 1.3 to 4.0 times that of the section of the winding portion core.

    Abstract translation: 使用其中组合有铁氧体磁芯和软磁金属芯的复合磁芯的电抗器。 反应器由铁氧体组成的一对轭部磁性部分和设置在磁轭部磁芯的相对平面之间的绕组部分磁芯和缠绕在绕组部分磁芯上的线圈构成。 绕组部分芯使用具有基本恒定横截面积的软磁金属芯形成。 由盘状磁芯与轭部磁芯相对的区域，以及接合部分的磁芯面对磁轭的部分的面积，配置有由平板状的软磁性金属粉末磁芯构成的结部分磁芯 部分芯部的长度为卷绕部分芯部的1.3〜4.0倍。

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