公开(公告)号：US20200312508A1

公开(公告)日：2020-10-01

申请号：US16830942

申请日：2020-03-26

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Yousuke HITOMI

IPC: H01F7/02 ,  H02K15/03

Abstract: A magnet structure, comprises: a plurality of permanent magnet members; and an adhesive layer bonding the permanent magnet members to each other, wherein the adhesive layer contains an adhesive, and a plurality of gap members, the gap members have insulation properties, each surface S of the permanent magnet members in contact with the adhesive layer has a plurality of convex parts, a reference plane is a plane including a mean line of a roughness curve of the surface S, Ry is a maximum value of heights of the convex parts from a deepest part of the surface S in a direction perpendicular to the reference plane, Rv is a distance between the reference plane and the deepest part, Rp is Ry−Rv, W1 is a width of the gap member in a direction perpendicular to the reference plane, and W1 is larger than 2Rp.

公开(公告)号：US20190326042A1

公开(公告)日：2019-10-24

申请号：US16389137

申请日：2019-04-19

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Yousuke HITOMI

IPC: H01F7/02 ,  H02K1/27 ,  H02K15/03 ,  H02K15/12

Abstract: A permanent magnet includes a magnet member, and an adhesive layer covering a surface of the magnet member, wherein the adhesive layer includes a resin and a plurality of foaming agents, and wherein at least part of the foaming agents protrudes from a surface of the resin.

公开(公告)号：US20190164673A1

公开(公告)日：2019-05-30

申请号：US16194521

申请日：2018-11-19

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI

IPC: H01F1/057 ,  H02K1/27 ,  H01F41/02

Abstract: The present invention aims to provide a novel magnet, whose surface's insulating property can be increased, and a motor using the same. The present invention provides a magnet comprising a magnet element containing a rare earth element R, a transition metal element T and boron B, and a phosphate layer including manganese-containing phosphate, wherein the phosphate layer is provided on the surface of the magnet element, and the thickness of the phosphate layer is 0.5 μm or more.

公开(公告)号：US20180366259A1

公开(公告)日：2018-12-20

申请号：US16007152

申请日：2018-06-13

Applicant: TDK CORPORATION

Inventor： Tasuku MIKOGAMI ,  Nobuo TAKAGI

IPC: H01F27/29 ,  H05K1/18 ,  H01F27/24 ,  H01F27/28 ,  H01F41/06 ,  H01F41/10

CPC classification number: H01F27/292 ,  H01F3/10 ,  H01F27/24 ,  H01F27/2823 ,  H01F41/06 ,  H01F41/10 ,  H05K1/0254 ,  H05K1/111 ,  H05K1/181 ,  H05K2201/094 ,  H05K2201/09427 ,  H05K2201/1003

Abstract: Disclosed herein is a coil component that includes: a drum core including a winding core part, a first flange part provided at one end of the winding core part in an axial direction of the winding core part, and a second flange part provided at other end of the winding core part in the axial direction of the winding core part; first, second, third, and fourth terminal electrodes provided on the first flange part; fifth, sixth, and seventh terminal electrodes provided on the second flange part; and first, second, third, and fourth wires wound around the winding core part, wherein one ends of the first to fourth wires are each connected to any one of the first to fourth terminal electrodes, and wherein other ends of the first to fourth wires are each connected to any one of the fifth to seventh terminal electrodes.

公开(公告)号：US20150371766A1

公开(公告)日：2015-12-24

申请号：US14744273

申请日：2015-06-19

Applicant: TDK Corporation

Inventor： Yoshihiro KAWASAKI ,  Nobuo TAKAGI ,  Kouyu OHI ,  Hiroyuki ABE

IPC: H01F27/29 ,  H01F27/24 ,  H01F41/06 ,  H01F27/28

CPC classification number: H01F27/2823 ,  H01F17/045 ,  H01F27/006 ,  H01F41/073 ,  Y10T29/49073

Abstract: A coil component is provided with first wire and second wires that are wound around a winding core. nth turns of the first and second wires are wound around a surface of the winding core in this order in parallel and form a first winding layer. Each of n+1th and subsequent turns of the second wire is wound around the surface of the winding core so as to be parallel to a previous turn of the second wire and form the first winding layer. Each of n+1th and subsequent turns of the first wire is wound on the first winding layer so as to be fitted into a valley of the first winding layer formed by the same and previous turns of the second wire and form a second winding layer. The same turns of the first and second wires are adjacent to each other at each turn.

Abstract translation: 线圈部件设置有卷绕在卷绕芯上的第一线和第二线。 第一和第二导线的第n圈平行卷绕在绕组芯的表面上并形成第一绕组层。 第二线的第n + 1个和随后的匝绕绕在绕组芯的表面上缠绕以平行于第二线的前一匝并形成第一绕组层。 第一线的第n + 1个和后续的绕组被卷绕在第一绕组层上，以便嵌入到由第二线的相同和前一匝形成的第一绕组的谷部中并形成第二绕组层。 第一和第二线的相同匝在每一匝处彼此相邻。

公开(公告)号：US20190189320A1

公开(公告)日：2019-06-20

申请号：US16283641

申请日：2019-02-22

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H01F5/04 ,  H01F27/30 ,  H01F27/29 ,  H01F27/28

CPC classification number: H01F5/04 ,  H01F27/2828 ,  H01F27/292 ,  H01F27/306

Abstract: The coil device comprises the magnetic core comprising the axial part and the magnetic core end part connecting to the axial part, the coil part formed by winding the wire around the axial part, and the electrode part provided at the magnetic core end part and made of good conductor. Said electrode part comprises the fixing surface fixed with a wire end part of said wire, and the fixing surface is provided on a side surface which does not intersect with a center axis of said coil part at said magnetic core end part. Said fixing surface is inclined to a direction, away from said center axis with respect to a direction towards said magnetic core end part from said axial part.

公开(公告)号：US20180366255A1

公开(公告)日：2018-12-20

申请号：US16007238

申请日：2018-06-13

Applicant: TDK CORPORATION

Inventor： Tasuku MIKOGAMI ,  Nobuo TAKAGI

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/29 ,  H01F41/064 ,  H01F41/10

Abstract: Disclosed herein is a coil component that includes a drum core having a winding core part and a first flange part, and first to fourth wires wound around the winding core part. One ends of the wires are each connected to any one of the terminal electrodes provided on the first flange part. The first to fourth wires wound around the winding core part form a winding block including a lower layer constituted of the first and third wires and an upper layer constituted of the second and fourth wires wound over the lower layer. A distance between connection positions of one ends of the first and third wires and an outside surface of the first flange part is shorter than a distance between connection positions of one ends of the second and fourth wires and the outside surface of the first flange part.

公开(公告)号：US20160217919A1

公开(公告)日：2016-07-28

申请号：US15003602

申请日：2016-01-21

Applicant: TDK CORPORATION

Inventor： Hiroyuki IWATA ,  Nobuo TAKAGI ,  Hiroyuki ABE ,  Koji SHIMURA

IPC: H01F27/29 ,  H01F27/28

CPC classification number: H01F27/29 ,  H01F17/045 ,  H01F27/306

Abstract: A coil device includes a magnetic core and terminal electrodes. The terminal electrodes include attachment pieces, wire connection rising pieces, connection pieces, and fillet forming pieces. The wire connection rising pieces are integrally risen from one ends in a longitudinal direction of the attachment pieces along a side surface in the X-axis direction of a flange. The connection pieces are integrally formed with upper end sides of the wire connection rising pieces and have welded balls connected to lead parts of a wire by laser welding. The fillet forming pieces are integrally risen from one ends in a lateral direction crossing the longitudinal direction of the attachment pieces along a side surface in the Y-axis direction of the flange. Laser shielding members are arranged between the welded balls and the flange of a magnetic core.

Abstract translation: 线圈装置包括磁芯和端子电极。 端子电极包括附件，线连接升降件，连接件和圆角成形件。 线连接升降件沿着凸缘的X轴方向的侧面从连接片的纵向方向的一端整体上升。 连接件与电线连接升降件的上端侧整体形成，并且通过激光焊接将焊接球连接到导线的引线部分。 圆角成形片沿着与凸缘的Y轴方向的侧面沿着与安装片的长度方向交叉的横向的一端一体地升起。 激光屏蔽构件设置在焊接球和磁芯的凸缘之间。

公开(公告)号：US20160133377A1

公开(公告)日：2016-05-12

申请号：US14719788

申请日：2015-05-22

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Tasuku MIKOGAMI ,  Setu TSUCHIDA ,  Hiroyuki ABE

IPC: H01F27/28 ,  H01F41/066 ,  H01F41/12 ,  H01F27/29

CPC classification number: H01F27/2823 ,  H01F17/045 ,  H01F27/02 ,  H01F27/29 ,  H01F27/327 ,  H01F41/066 ,  H01F41/127 ,  H01F2017/0093

Abstract: Disclosed herein is a coil component that includes: a drum core that includes first and second flange portions having wire connection portions and a winding core portion located between the first and second flange portions; a coated conductive wire that is wound around the winding core portion, each end of the coated conductive wire being connected to respective one of the wire connection portions; and a resin coating layer that covers at least the coated conductive wire located in a first layer in the winding core portion.

Abstract translation: 本发明公开了一种线圈部件，包括：鼓芯，其包括具有线连接部分的第一和第二凸缘部分和位于第一和第二凸缘部分之间的卷绕芯部分; 缠绕在卷绕芯部上的被覆导线，被覆导线的各端部与导线连接部中的相应一方连接; 以及至少覆盖位于卷绕芯部的第一层中的被覆导电线的树脂被覆层。

公开(公告)号：US20190272944A1

公开(公告)日：2019-09-05

申请号：US16398341

申请日：2019-04-30

Applicant: TDK CORPORATION

Inventor： Nobuo TAKAGI ,  Kazuteru KAKIZAKI ,  Setu TSUCHIDA

IPC: H01F27/29 ,  H01F27/30 ,  H01F27/28 ,  H01F27/24

Abstract: A coil device comprising; a winding coil including Cu and having a winding part and an extension line part which is pulled out from said winding part, a pair of electrodes made of a conductive material having, a connecting wire part having a connecting wire face connected with the extension line part and a protective face sandwiching said extension line part with said connecting wire face, and a base part provided with a mounting base face at one of the faces of the base and connected to said connecting wire part, a magnetic part including a magnetic material and covering at least said winding part and said connecting wire part.