公开(公告)号：US20230317364A1

公开(公告)日：2023-10-05

申请号：US18190276

申请日：2023-03-27

Applicant: TDK CORPORATION ,  TDK XIAMEN CO., LTD.

Inventor： Hiroshi MAEDA ,  Shoichi TANI ,  Takahiro HIRAI ,  Xiao JIE ,  DanLing LUO ,  XueSong GUO

IPC: H01F27/30 ,  H01F27/28 ,  H01F27/26 ,  H01F27/29

CPC classification number: H01F27/306 ,  H01F27/2823 ,  H01F27/266 ,  H01F27/292

Abstract: A coil device includes a bobbin, a main core, and wires. A connection portion located between a first bobbin flange portion and a second bobbin flange portion includes a raised portion protruding along a direction perpendicular to a first axis more than the connection portion located between a first terminal block and a first bobbin flange portion. Communication wire portions connecting first wires of a proximal first coil and first wires of a distal first coil are arranged in a wiring space formed between second wires wound in contact with an upper end of the raised portion and an outer surface of the winding core portion or the bobbin.

公开(公告)号：US20220139602A1

公开(公告)日：2022-05-05

申请号：US17517240

申请日：2021-11-02

Applicant: TDK CORPORATION

Inventor： Katsuhiro ISHIGAKI ,  Hideaki HARATA ,  Shoichi TANI

IPC: H01F5/04 ,  H01F27/29 ,  H01F27/32 ,  H01F27/28

Abstract: A coil device includes a coil portion and a bobbin. The coil portion includes wires connectable to terminals. The bobbin includes a first terminal block and a second terminal block formed on both sides in a winding axis direction of a cylindrical portion for forming the coil portion around the cylindrical portion. A length of the first terminal block in a width direction perpendicular to the winding axis direction is larger than that of the second terminal block in the width direction.

公开(公告)号：US20210249181A1

公开(公告)日：2021-08-12

申请号：US17166106

申请日：2021-02-03

Applicant: TDK CORPORATION ,  TDK XIAMEN CO., LTD.

Inventor： Masatoshi YASUDA ,  Hiroshi MAEDA ,  Atsushi SHOJI ,  Shoichi TANI

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/29 ,  H01F27/26

Abstract: A composite coil device includes a winding shaft portion, a first conductor portion, and a second conductor portion. The winding shaft portion at least partly includes a magnetic body and axially includes a first section and a second section. The first conductor portion is wound continuously in the first section and the second section. The second conductor portion is wound in the second section.

公开(公告)号：US20250157723A1

公开(公告)日：2025-05-15

申请号：US18930017

申请日：2024-10-29

Applicant: TDK CORPORATION

Inventor： Shoichi TANI ,  Toshiyuki HORIKAWA

IPC: H01F27/29 ,  H01F5/04 ,  H01F27/22

Abstract: A coil device includes a core including a winding core portion, a winding portion of a wire disposed in a coil shape around the winding core portion, and a base plate provided with a terminal to which a leading portion of the wire led out from the winding portion is attached. The core is disposed on a first surface as one surface of the base plate. A wire connection portion of the terminal is disposed on a second surface as the other surface of the base plate located opposite to the first surface. The base plate is provided with a base-side passage for passing and guiding the leading portion of the wire from the winding portion to the wire connection portion.

公开(公告)号：US20240331934A1

公开(公告)日：2024-10-03

申请号：US18596729

申请日：2024-03-06

Applicant: TDK CORPORATION

Inventor： Hideaki HARATA ,  Shoichi TANI ,  Hiroki IDANI ,  Keiichi YASUHARA

IPC: H01F27/32 ,  H01F27/26 ,  H01F27/29

CPC classification number: H01F27/325 ,  H01F27/266 ,  H01F27/29

Abstract: A coil device, including a bobbin including a tubular part, a wire wound around the tubular part, a cover capable of being installed on the bobbin, and a core including a middle leg part. The cover includes an end wall having an end wall opening arranged at an end part of the tubular part so as to connect with a through hole of the tubular part, and a first engagement part engaging with the bobbin. The middle leg part is arranged so as to be inserted into the end wall opening and the through hole.