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1. 发明授权

US09406430B2 Reactor 有权
标题翻译：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
申请人： TDK CORPORATION
发明人： Tomofumi Kuroda , Yu Sakurai , Hideyuki Itoh
IPC分类号： H01F17/06 , H01F27/29 , H01F27/02 , H01F27/28 , H01F27/24 , H01F27/34 , H01F3/10 , H01F37/00 , H01F3/14
CPC分类号： H01F27/24 , H01F3/10 , H01F3/14 , H01F27/34 , H01F37/00 , H01F2003/106
摘要： 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.
摘要翻译：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。

2. 发明授权

US09779861B2 Soft magnetic metal powder and soft magnetic metal powder core using the same 有权
公开(公告)号：US09779861B2
公开(公告)日：2017-10-03
申请号：US14712313
申请日：2015-05-14
申请人： TDK CORPORATION
发明人： Yu Sakurai , Tomofumi Kuroda , Hideyuki Itoh
IPC分类号： H01F1/147 , C22C38/08 , C22C38/00 , C22C19/03 , B22F1/00 , B22F1/02 , H01F1/20 , H01F1/24 , H01F3/08 , C22C30/00 , H01F41/02
CPC分类号： H01F1/1475 , B22F1/0048 , B22F1/0085 , B22F1/02 , B22F2998/10 , B22F2999/00 , C22C19/03 , C22C30/00 , C22C38/002 , C22C38/08 , H01F1/14733 , H01F1/20 , H01F1/24 , H01F3/08 , H01F41/0246 , B22F1/0081 , B22F1/0088 , B22F2201/02 , B22F9/08 , B22F9/04 , B22F2009/043 , B22F1/0062 , B22F2003/145
摘要： The present invention relates to a soft magnetic metal powder which contains B and has Fe and Ni as the main components, wherein the content of Ni in the soft magnetic metal powder is 30 to 80 mass %, the total content of Fe and Ni in the soft magnetic metal powder is 90 mass % or more, the content of B inside the metal particle of the soft magnetic metal powder is 10 to 150 ppm, and the particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.

3. 发明授权

US09793035B2 Soft magnetic metal powder and soft magnetic metal powder core using the same 有权
公开(公告)号：US09793035B2
公开(公告)日：2017-10-17
申请号：US14712326
申请日：2015-05-14
申请人： TDK CORPORATION
发明人： Yu Sakurai , Tomofumi Kuroda , Hideyuki Itoh
IPC分类号： H01F1/20 , C22C38/02 , H01F1/24 , H01F41/02 , H01F1/147 , C22C38/00 , C22C33/02
CPC分类号： H01F1/20 , B22F2998/10 , B22F2999/00 , C22C33/0257 , C22C38/00 , C22C38/002 , C22C38/02 , H01F1/14766 , H01F1/24 , H01F41/0246 , B22F9/08 , B22F1/0085 , B22F1/0088 , B22F2003/145 , B22F2201/02
摘要： The present invention relates to a soft magnetic metal powder which has Fe as the main component and contains Si and B, wherein, the content of Si in the soft magnetic metal powder is 1 to 15 mass %, the content of boron inside the metal particle of the soft magnetic metal powder is 10 to 150 ppm, and the particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.

4. 发明授权

US09959968B2 Reactor 有权
公开(公告)号：US09959968B2
公开(公告)日：2018-05-01
申请号：US14604380
申请日：2015-01-23
申请人： TDK CORPORATION
发明人： Tomofumi Kuroda , Yu Sakurai
IPC分类号： H01F17/06 , H01F21/08 , H01F27/24 , H01F27/26 , H01F27/255 , H01F27/34 , H01F3/10 , H01F37/00 , H01F3/14
CPC分类号： H01F27/263 , H01F3/10 , H01F3/14 , H01F27/255 , H01F27/34 , H01F27/346 , H01F37/00 , H01F2003/106
摘要： A reactor uses a composite magnetic core which combines a ferrite core and a soft magnetic metal core. The reactor is composed of a pair of yoke portion cores composed of ferrite cores, winding portion core(s) disposed between the opposite planes of the yoke portion cores, and coil(s) wound around the winding portion core(s). Flange-like members are disposed at the end part of the winding portion core(s) in a way of being external connected with the periphery of winding portion core(s) which is composed of a soft magnetic metal core. The flange-like member is composed of a metal material with iron as the main component which can be magnetically attracted to a magnet, and a junction portion of the flange-like member and the yoke portion core is formed at one flat plane of the member which is the same plane with an end plane of the winding portion core.

5. 发明授权

US09881721B2 Soft magnetic metal powder and soft magnetic metal powder core using the same 有权
公开(公告)号：US09881721B2
公开(公告)日：2018-01-30
申请号：US14712227
申请日：2015-05-14
申请人： TDK CORPORATION
发明人： Yu Sakurai , Tomofumi Kuroda , Hideyuki Itoh
IPC分类号： H01F1/20 , H01F1/147 , C22C38/00 , B22F1/02 , H01F1/24 , H01F41/02
CPC分类号： H01F1/20 , B22F1/02 , B22F2998/10 , B22F2999/00 , C22C38/002 , H01F1/147 , H01F1/24 , H01F41/0246 , B22F9/08 , B22F1/0085 , B22F1/0081 , B22F1/0088 , B22F3/02 , B22F2003/248 , B22F2201/02 , B22F2009/043 , B22F2009/042
摘要： The present invention relates to a soft magnetic metal powder having iron as the main component and containing boron, wherein, the content of iron inside the soft magnetic metal powder is 98 mass % or more, the content of boron in the particle of the soft magnetic metal powder is 10 to 150 ppm, and the metal particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.

6. 发明授权

US09601249B2 Soft magnetic metal powder-compact magnetic core and reactor 有权
公开(公告)号：US09601249B2
公开(公告)日：2017-03-21
申请号：US15008872
申请日：2016-01-28
申请人： TDK CORPORATION
发明人： Yusuke Taniguchi , Tomofumi Kuroda , Yu Sakurai
IPC分类号： H01F37/00 , H01F27/24 , H01F3/08 , C22C19/03 , H01F1/147 , C22C30/00 , H01F1/24 , C22C38/08 , H01F1/20 , C22C38/00
CPC分类号： H01F3/08 , C22C19/03 , C22C30/00 , C22C38/002 , C22C38/08 , H01F1/14733 , H01F1/1475 , H01F1/14766 , H01F1/20 , H01F1/24
摘要： The objective is to provide a soft magnetic metal powder-compact magnetic core and a reactor with an excellent DC superposition characteristic. The soft magnetic metal powder-compact magnetic core contains a soft magnetic metal powder, boron nitride and a silicon compound, when its section is ground and then observed, the ratio of the area occupied by the soft magnetic metal powder to that of the section of the soft magnetic metal powder-compact magnetic core is 90% or more and 95% or less, and a roundness of the section of 80% or more of the particles constituting the soft magnetic metal powder is 0.75 or more and 1.0 or less, and boron nitride exists in 70% or more of the voids-among-multiple-particles among the voids-among-multiple-particles in the section of the soft magnetic metal powder-compact magnetic core. Thus, the soft magnetic metal powder-compact magnetic core with an excellent DC superposition characteristic can be obtained.

7. 发明授权

US10607757B1 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
申请人： TDK CORPORATION
发明人： Yu Sakurai , Tomofumi Kuroda , Hideyuki Itoh
IPC分类号： H01F1/22 , H01F41/02 , B22F1/00 , C23C8/24
摘要： 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.

8. 发明授权

US09455080B2 Reactor 有权
标题翻译：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
申请人： TDK CORPORATION
发明人： Tomofumi Kuroda , Yu Sakurai , Hideyuki Itoh
IPC分类号： H01F17/06 , H01F27/24 , H01F21/06 , H01F27/02 , H01F27/29 , H01F27/255 , H01F27/34 , H01F3/10 , H01F37/00 , H01F3/14
CPC分类号： H01F27/255 , H01F3/10 , H01F3/14 , H01F27/34 , H01F37/00 , H01F2003/106
摘要： 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.
摘要翻译：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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