公开(公告)号：US20170229229A1

公开(公告)日：2017-08-10

申请号：US15426390

申请日：2017-02-07

Applicant: TDK Corporation

Inventor： Yoshihiro KAWASAKI ,  Syun ASHIZAWA ,  Hirohumi ASOU ,  Nobuo TAKAGI

IPC: H01F27/255 ,  H01F27/29 ,  H01F27/28

CPC classification number: H01F27/255 ,  H01F3/10 ,  H01F27/2823 ,  H01F27/2828 ,  H01F27/292

Abstract: Disclosed herein is a coil component that includes a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core; a wire wound around the winding core; terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire; and a magnetic top plate made of magnetic-powder containing resin in which magnetic powder is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions. The magnetic top plate has a lower surface facing the first and second flange portions and an upper surface located opposite to the lower surface. The density of the binder resin is higher in a surface layer part on a side of the lower surface than in a surface layer part on a side of the upper surface.

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。

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：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：US20190131056A1

公开(公告)日：2019-05-02

申请号：US16170349

申请日：2018-10-25

Applicant: TDK Corporation

Inventor： Syun ASHIZAWA ,  Masato OTSUKA ,  Hanako YOSHINO ,  Toshio TOMONARI ,  Kohei WADA

IPC: H01F27/28

Abstract: Disclosed herein is a coil component that includes an insulating substrate, a first coil part formed on the first surface of the insulating substrate, and a second coil part formed on the second surface of the insulating substrate. At least an innermost turn of the first coil part is radially separated by spiral-shaped slits into three or more conductor parts. At least an innermost turn of the second coil part is radially separated by spiral-shaped slits into three or more conductor parts. Inner peripheral ends of respective innermost to outermost conductor parts of the three or more conductor parts of the first coil part are connected to inner peripheral ends of the respective outermost to innermost conductor parts of the three or more conductor parts of the second coil part.

公开(公告)号：US20230377791A1

公开(公告)日：2023-11-23

申请号：US18319541

申请日：2023-05-18

Applicant: TDK CORPORATION

Inventor： Satoshi SUGIMOTO ,  Syun ASHIZAWA

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

CPC classification number: H01F27/2828 ,  H01F27/29 ,  H01F41/10

Abstract: A coil device includes: a core; a coil including a winding portion disposed inside the core, and a lead-out portion led out from the winding portion; and a terminal including a wire connection portion joined to the lead-out portion and disposed inside the core. The lead-out portion includes a joint portion joined to the wire connection portion, and a non-joint portion separated from the joint portion. A first thickness of the joint portion is smaller than a second thickness of the non-joint portion.

公开(公告)号：US20170263373A1

公开(公告)日：2017-09-14

申请号：US15446601

申请日：2017-03-01

Applicant: TDK CORPORATION

Inventor： Syun ASHIZAWA ,  Toshio TOMONARI ,  Hirohumi ASOU ,  Emi ITO

IPC: H01F27/28 ,  H01F27/29

Abstract: A coil device includes a winding core with a coil portion wound by a wire, first and second flanges with open magnetic circuit respectively formed on both sides of the winding core in an axial direction, and a first facing surface of the first flange and a second facing surface of the second flange facing each other in the axial direction on an outer circumference side of the coil portion. S1/S2 is 0.2 to 1.0, where S1 is a maximum lateral cross sectional area of the winding core as seen from the axial direction, and S2 is a projected overlapping area overlapped by the first facing surface and the second facing surface as seen from the axial direction.

公开(公告)号：US20170011844A1

公开(公告)日：2017-01-12

申请号：US15201742

申请日：2016-07-05

Applicant: TDK Corporation

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

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

CPC classification number: H01F41/069 ,  H01F27/2828 ,  H01F27/292 ,  H01F27/327 ,  H01F41/127

Abstract: Disclosed herein is a coil component that includes: a drum core including a first flange portion, a second flange portion and a winding core portion positioned between the first and second flange portions; a plurality of coated conductive wires forming a first winding layer wound around the winding core portion and a second winding layer wound around the winding core portion with an intervention of the first winding layer; and a resin coating layer covering the coated conductive wires. A maximum space between the coated conductive wires in the first winding layer is narrower than a diameter of the coated conductive wires.

Abstract translation: 本发明公开了一种线圈部件，其包括：鼓芯，其包括第一凸缘部，第二凸缘部和位于第一凸缘部和第二凸缘部之间的卷绕芯部; 多个涂覆的导线，其形成缠绕在卷绕芯部分上的第一绕组层和缠绕在绕组芯部分上的第二绕组层，介于第一绕组层; 以及覆盖被覆导电线的树脂被覆层。 第一绕组层中的被覆导电线之间的最大间隔比涂覆的导线的直径窄。

公开(公告)号：US20240203640A1

公开(公告)日：2024-06-20

申请号：US18593402

申请日：2024-03-01

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Syun ASHIZAWA ,  Satoshi SUGIMOTO

IPC: H01F27/32 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28 ,  H01F41/12

CPC classification number: H01F27/327 ,  H01F27/02 ,  H01F27/24 ,  H01F27/2866 ,  H01F41/125

Abstract: A coil device includes a first conductor, a second conductor, and a core. The second conductor is disposed inside the first conductor and at least partly extending along the first conductor. The core internally arranges the first conductor and the second conductor. An insulating layer is formed at least between the first conductor and the second conductor.