公开(公告)号：US20210280356A1

公开(公告)日：2021-09-09

申请号：US17189824

申请日：2021-03-02

Applicant: TDK Corporation

Inventor： Yugo ASAI ,  Aoi TOKIWA ,  Daisuke URABE

IPC: H01F27/28 ,  H01F27/26

Abstract: Disclosed herein is a coil component that includes: a drum-shaped core including first and second flange parts and a winding core part; first terminal electrodes provided on the first flange part; second terminal electrodes provided on the second flange part; a plurality of wires wound around the winding core part, each of the plurality of wires having a first end connected to an associated one of the first terminal electrodes, and having a second end connected to an associated one of the second terminal electrodes; and a plate-like core fixed to the first and second flange parts. Each of the first and second flange parts has a first groove formed in a surface facing the plate-like core. The plurality of wires are positioned in parallel to each other in each of the first grooves formed in the first and second flange parts.

公开(公告)号：US20210166861A1

公开(公告)日：2021-06-03

申请号：US17079658

申请日：2020-10-26

Applicant: TDK CORPORATION

Inventor： Shuhei SOMEYA ,  Aoi TOKIWA ,  Daisuke URABE

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

Abstract: A coil device includes a winding core, a wire, and a terminal fitting. The winding core is made of a magnetic material and includes a flange. The wire is wound around the winding core. The terminal fitting is attached to a part of an outer surface of the flange. The terminal fitting includes a contact part and a protrusion plate part. The contact part is contacted with the outer surface of the flange. The protrusion plate part is formed integrally with the contact part and protrudes away from the flange. The protrusion plate part includes a wire connection surface and a main mounting surface. A lead end of the wire is connected to the wire connection surface. The main mounting surface is located opposite to the wire connection surface and is connectable to an external circuit.

公开(公告)号：US20200243251A1

公开(公告)日：2020-07-30

申请号：US16751725

申请日：2020-01-24

Applicant: TDK CORPORATION

Inventor： Hanako YOSHINO ,  Hiroshi SUZUKI ,  Daisuke URABE ,  Keigo HIGASHIDA ,  Tomokazu TSUCHIYA

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/24 ,  H01F41/069

Abstract: Disclosed herein is a coil component that includes a winding core part, and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. A i-th (i is an integer equal to or larger than 1) turn, a (i+1) turn, and a (i+2) turn of each of the first and second wires are positioned in mutually different winding layers.

公开(公告)号：US20190229697A1

公开(公告)日：2019-07-25

申请号：US16236563

申请日：2018-12-30

Applicant: TDK Corporation

Inventor： Yugo ASAI ,  Tsutomu KOBAYASHI ,  Daisuke URABE ,  Hiroshi SUZUKI ,  Emi ITO ,  Toshio TOMONARI

IPC: H03H7/09 ,  H01F27/29 ,  H01F27/24

Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. A predetermined one turn of the first wire crosses a predetermined one turn of the second wire a plurality of times.

公开(公告)号：US20190228901A1

公开(公告)日：2019-07-25

申请号：US16236562

申请日：2018-12-30

Applicant: TDK Corporation

Inventor： Yugo ASAI ,  Tsutomu KOBAYASHI ,  Daisuke URABE ,  Hiroshi SUZUKI ,  Emi ITO ,  Toshio TOMONARI

IPC: H01F27/28 ,  H03H7/09 ,  H03H1/00 ,  H01F17/04 ,  H01F27/06

Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.