公开(公告)号：US20210249180A1

公开(公告)日：2021-08-12

申请号：US17089859

申请日：2020-11-05

Applicant: TDK CORPORATION

Inventor： Toshiyuki HORIKAWA ,  Masaaki IWAKURA ,  Masaru KUMAGAI ,  Shoichi SASAKI

IPC: H01F27/28 ,  H01F27/29

Abstract: A coil device includes a bobbin, a terminal, and a terminal block. The bobbin includes a winding portion for winding a wire around an outer circumference of the winding portion. The terminal is connectable with an end of the wire. The terminal block holds the terminal. The terminal is movable both in a first axis and a second axis of the bobbin.

公开(公告)号：US20240120147A1

公开(公告)日：2024-04-11

申请号：US18480547

申请日：2023-10-04

Applicant: TDK CORPORATION

Inventor： Masaru KUMAGAI ,  Shinichiro KOKUBO ,  Ge LI

IPC: H01F27/32 ,  H01F27/28 ,  H01F27/30

CPC classification number: H01F27/325 ,  H01F27/2823 ,  H01F27/306

Abstract: A flat coil comprises a coil main portion having a flat shape; a lead portion drawn out from the coil main portion; and a heat-dissipating portion provided to the coil main portion at a location different from where the lead portion is drawn out from the coil main portion, the heat-dissipating portion meeting the coil main portion at a predetermined angle.

公开(公告)号：US20240096547A1

公开(公告)日：2024-03-21

申请号：US18465449

申请日：2023-09-12

Applicant: TDK CORPORATION

Inventor： Tomohiro FURUICHI ,  Masaru KUMAGAI ,  Takuma TANAKA

IPC: H01F27/32 ,  H01F27/02 ,  H01F27/28 ,  H01F27/29

CPC classification number: H01F27/325 ,  H01F27/02 ,  H01F27/2828 ,  H01F27/29

Abstract: The present disclosure provides a coil device that can be reduced in height, has a small installation area of a case, and is excellent in heat dissipation. A coil device according to the present disclosure includes: a device body including a bobbin and a coil unit of a wire wound around the bobbin; a terminal block arranging a lead portion drawn out from a wire of the coil unit thereon; and a case capable of accommodating the device body. The case includes a support arm extending outside the case, and the terminal block is held by the support arm.

公开(公告)号：US20240006117A1

公开(公告)日：2024-01-04

申请号：US18334702

申请日：2023-06-14

Applicant: TDK CORPORATION

Inventor： Atsushi SHOJI ,  Masaru KUMAGAI

IPC: H01F27/32 ,  H01F27/29 ,  H01F27/30 ,  H01F5/04 ,  H01F27/02

CPC classification number: H01F27/325 ,  H01F27/29 ,  H01F27/306 ,  H01F5/04 ,  H01F27/022

Abstract: A coil device includes a coil, a terminal, a bobbin, and a core. The coil includes a winding portion and a lead portion drawn out from the winding portion. The terminal is connected with the lead portion. The bobbin includes a cylinder portion for the winding portion and a terminal installation portion formed at an end in a first direction parallel to an axial direction of the cylinder portion and provided with the terminal. The core is attachable to the bobbin. The terminal installation portion includes a convex portion separating the core and the terminal.

公开(公告)号：US20230290562A1

公开(公告)日：2023-09-14

申请号：US18178752

申请日：2023-03-06

Applicant: TDK CORPORATION

Inventor： Masaru KUMAGAI ,  Tomohiro FURUICHI ,  Satoshi DENDA

IPC: H01F27/32 ,  H01F27/22 ,  H01F27/24

CPC classification number: H01F27/325 ,  H01F27/22 ,  H01F27/24

Abstract: A coil device 1 includes cores 30b and 30c; flat coils 93a to 93d each having a flat wire; a bobbin 20 having a through-hole 210 in which legs 33b and 33c of the cores 30b and 30c are disposed and accommodation grooves 220a to 220d into which the flat coils 93a to 93d are laterally inserted; and a retainer member 80 inserted into the through-hole 210 and disposed at inner circumferential sides of the flat coils 93a to 93d.

公开(公告)号：US20230290560A1

公开(公告)日：2023-09-14

申请号：US18178735

申请日：2023-03-06

Applicant: TDK Corporation

Inventor： Masaru KUMAGAI ,  Tomohiro Furuichi ,  Satoshi Denda

IPC: H01F27/22 ,  H01F27/24 ,  H01F27/32

CPC classification number: H01F27/22 ,  H01F27/24 ,  H01F27/325

Abstract: A coil device 1 comprises a second bobbin 20 provided with a second coil 92; cores 30b and 30c attached to the second bobbin 20; a case 40 accommodating the second bobbin 20 and the cores 30b and 30c; and a heat dissipating resin 100 filling the case 40. The case 40 comprises a case body 41 covering the second bobbin 20 with the cores 30b and 30c from above and from below and having an opening 42 that is opened laterally. The second bobbin 20 comprises protrusions 24 protruding from the case body 41 through the opening 42.

公开(公告)号：US20220319768A1

公开(公告)日：2022-10-06

申请号：US17704612

申请日：2022-03-25

Applicant: TDK CORPORATION

Inventor： Hideaki HARATA ,  Takuma TANAKA ,  Masaru KUMAGAI ,  Tomohiro FURUICHI ,  Satoshi DENDA

IPC: H01F27/32 ,  H01F27/28

Abstract: A coil device including; a bobbin including a winding part wound with a first wire and a second wire around an outer circumference face of the winding part, and flanges and formed at ends of the winding part in an axis direction; and a terminal block formed separately from the bobbin and installed to the bobbin The terminal block is arranged at a position spaced away from the outer circumference face of the winding part in a direction perpendicular to the axis direction of the winding part.