公开(公告)号：US20200013541A1

公开(公告)日：2020-01-09

申请号：US16504082

申请日：2019-07-05

Applicant: TDK CORPORATION

Inventor： Tasuku MIKOGAMI ,  Shuhei SOMEYA ,  Syun ASHIZAWA ,  Setu TSUCHIDA

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

Abstract: Disclosed herein is a pulse transformer that includes first to fourth terminal electrodes provided on the first flange part, fifth to eighth terminal electrodes provided on the second flange part, first and second wires wound around the winding core part having one end connected to the first and second terminal electrodes and other end connected to the seventh and eighth terminal electrodes, and third and fourth wire wound around the winding core part having one end connected to third and fourth terminal electrodes and other end connected to the fifth and sixth terminal electrodes. A winding direction of the first and third wires is opposite to a winding direction of the second and fourth wires.

公开(公告)号：US20190333685A1

公开(公告)日：2019-10-31

申请号：US16394209

申请日：2019-04-25

Applicant: TDK CORPORATION

Inventor： Shuhei SOMEYA ,  Tasuku MIKOGAMI ,  Yuichi ANZAI ,  Hideomi TAKAHASHI

IPC: H01F27/28 ,  H01F17/04 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface, the lower coil having one end drawn to a first area of the mounting surface and other end drawn to a second area of the mounting surface; and an upper coil substantially coaxially stacked on the lower coil, the upper coil having one end drawn to a third area of the mounting surface and other end drawn to a fourth area of the mounting surface. The lower coil is greater in a coil diameter than the upper coil.

公开(公告)号：US20190318865A1

公开(公告)日：2019-10-17

申请号：US16378960

申请日：2019-04-09

Applicant: TDK CORPORATION

Inventor： Tasuku MIKOGAMI ,  Shuhei SOMEYA ,  Syun ASHIZAWA ,  Setu TSUCHIDA

IPC: H01F27/29 ,  H01F27/28

Abstract: Disclosed herein is a coil component that includes a core including a winding core part extending in the x-direction and a flange part, a terminal electrode provided on the flange part, and a wire wound around the winding core part and connected to the terminal electrode. The terminal electrode does not overlap the winding core part in the y-direction. The wire includes a wound part wound around the winding core part and a drawn part drawn from the wound part, running across the winding core part in the z-direction and connected to the terminal electrode. The core has a positioning part that positions the drawn part of the wire in the y-direction.

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：US20190164683A1

公开(公告)日：2019-05-30

申请号：US16263056

申请日：2019-01-31

Applicant: TDK CORPORATION

Inventor： Nobuo TAKAGI ,  Setu TSUCHIDA ,  Tasuku MIKOGAMI

IPC: H01F27/29

CPC classification number: H01F27/29 ,  H01F3/10 ,  H01F27/2828 ,  H01F27/292

Abstract: A pulse transformer includes a drum core having a winding core, a first flange provided at one end of the winding core in a first direction, and a second flange provided at the other end of the winding core in the first direction. First, second, third, and fourth terminal electrodes are provided in the first flange, and fifth, sixth, seventh, and eighth terminal electrodes are provided in the second flange. First, second, third, and fourth wires each have one end connected to a different one of the first to fourth terminal electrodes and the other end connected to a different one of the fifth to eighth terminal electrodes. A length of the drum core in the first direction and the second direction, perpendicular to the first direction, are substantially equal to one another, such that a planar shape of a mounting region of the pulse transformer is substantially square.

公开(公告)号：US20190080834A1

公开(公告)日：2019-03-14

申请号：US16122090

申请日：2018-09-05

Applicant: TDK CORPORATION

Inventor： Shuhei SOMEYA ,  Tasuku MIKOGAMI

IPC: H01F17/04 ,  H01F27/29 ,  H01F27/28

Abstract: A coil device includes a coil, a core, and an electrode. The coil is formed by winding a wire. The core is provided with the coil. The electrode has a wire joint part configured to be connected with a wire end of the wire. A mount surface of the electrode is at least partially covered with a cover layer.

公开(公告)号：US20180374632A1

公开(公告)日：2018-12-27

申请号：US16012611

申请日：2018-06-19

Applicant: TDK CORPORATION

Inventor： Keisuke KAWAHARA ,  Tasuku MIKOGAMI ,  Setu TSUCHIDA ,  Toshio TOMONARI

IPC: H01F27/29 ,  H01F17/04 ,  H01F41/069 ,  H01F41/076 ,  H01F27/28

Abstract: Disclosed herein is a pulse transformer that includes: a drum core including a winding core part and first and second flange parts provided at both ends of the winding core part in an axial direction; a plurality of wires wound around the winding core part; and a plate-like core fixed to the drum core so as to face a first surface of the first flange part that is parallel to the axial direction and a second surface of the second flange part that is parallel to the axial direction. A value of S1/S2 is 0.19 or more and 0.47 or less, where an area of the cross section of the winding core part that is perpendicular to the axial direction is S1 and a facing area between the plate-like core and the first or second surface is S2.

公开(公告)号：US20170140858A1

公开(公告)日：2017-05-18

申请号：US15282815

申请日：2016-09-30

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Kouyu OHI ,  Tasuku MIKOGAMI ,  Setu TSUCHIDA

IPC: H01F5/04 ,  H01F27/29

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：US20170011843A1

公开(公告)日：2017-01-12

申请号：US15200383

申请日：2016-07-01

Applicant: TDK Corporation

Inventor： Tasuku MIKOGAMI ,  Nobuo TAKAGI ,  Kouyu OHI ,  Syun ASHIZAWA ,  Setu TSUCHIDA

IPC: H01F27/29 ,  H01F41/069 ,  H01F27/28

CPC classification number: H01F41/069 ,  H01F17/045 ,  H01F27/263 ,  H01F27/2828 ,  H01F27/292

Abstract: Disclosed herein is a coil component that includes a drum core including a pair of flange portions and a winding core portion positioned between the flange portions, a plurality of terminal electrodes formed on the flange portions, and a plurality of wires wound around the winding core portion, each end of the wires being electrically connected to an associated one of the terminal electrodes. Each of the flange portions has an inner side surface connected to the winding core portion and an outer side surface opposite to the inner side surface, the outer side surface has a plurality of ridges and at least one groove, and the terminal electrodes are formed on at least the ridges of the outer side surfaces such that the terminal electrodes are isolated from each other by the groove.

Abstract translation: 本发明公开了一种线圈部件，其包括鼓芯，该鼓芯包括一对凸缘部分和位于凸缘部分之间的卷绕芯部分，形成在凸缘部分上的多个端子电极和缠绕在卷芯部分上的多根线 电线的每一端电连接到相关联的一个端子电极。 每个凸缘部分具有连接到卷绕芯部的内侧表面和与内侧表面相对的外侧表面，外侧表面具有多个脊和至少一个凹槽，并且端子电极形成在 至少外侧的脊部使得端子电极通过槽彼此隔离。

公开(公告)号：US20160379751A1

公开(公告)日：2016-12-29

申请号：US15192907

申请日：2016-06-24

Applicant: TDK Corporation

Inventor： Syun ASHIZAWA ,  Nobuo TAKAGI ,  Setu TSUCHIDA ,  Tasuku MIKOGAMI

IPC: H01F27/28 ,  H01F27/255

CPC classification number: H01F27/2823 ,  H01F27/255 ,  H01F27/30 ,  H01F27/325

Abstract: A pulse transformer has a winding core and a coil portion formed around an outer circumference of the winding core and composed of a primary coil and a secondary coil. The primary coil has a first wire and a second wire. The secondary coil has a third wire and a fourth wire. The coil portion includes a first layer formed by the first wire, a second layer positioned around an outer circumference of the first layer and formed by the third wire, a third layer positioned around an outer circumference of the second layer and firmed by the fourth wire, and a fourth layer positioned around an outer circumference of the third layer and formed by the second wire.

Abstract translation: 脉冲变压器具有卷绕芯和形成在绕组芯的外周周围并由初级线圈和次级线圈组成的线圈部分。 初级线圈具有第一线和第二线。 次级线圈具有第三线和第四线。 线圈部分包括由第一线形成的第一层，围绕第一层的外周定位并由第三线形成的第二层，第三层，围绕第二层的外圆周定位并由第四线确定 以及第四层，该第四层围绕第三层的外周设置并由第二导线形成。