公开(公告)号：US20220384093A1

公开(公告)日：2022-12-01

申请号：US17828335

申请日：2022-05-31

Applicant: TDK Corporation

Inventor： Hanako YOSHINO ,  Keigo HIGASHIDA ,  Daisuke URABE ,  Takashi ARASAWA ,  Yugo ASAI

IPC: H01F27/30 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes a drum core; a terminal fitting fixed respectively to the flange part of the drum core; and a wire wound around the winding core part of the drum core. The terminal fitting has a wire connecting part to which the wire is connected and a mounting part having springiness with respect to the drum core. The distance between the flange part and the mounting part is larger than the distance between the flange part and the wire connecting part.

公开(公告)号：US20240212919A1

公开(公告)日：2024-06-27

申请号：US18542964

申请日：2023-12-18

Applicant: TDK CORPORATION

Inventor： Taichi WATANABE ,  Tatsuya SATO ,  Yugo ASAI ,  Daisuke URABE ,  Keigo HIGASHIDA ,  Hanako YOSHINO ,  Takashi ARASAWA

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

CPC classification number: H01F27/2828 ,  H01F27/29 ,  H01F27/306

Abstract: A coil device includes a coil, a core, and a terminal fitting. The coil includes a winding portion and a lead portion led out from the winding portion. The core includes a winding core portion provided with the winding portion and a flange portion formed at an end in a first direction parallel to an axis of the winding core portion. The terminal fitting is provided with an engagement portion for engaging with the flange portion. The flange portion includes a first side surface located on one side in a second direction parallel to a mounting surface of the flange portion and a second side surface located on the other side in the second direction. The engagement portion is disposed from the first side surface to the second side surface and connected to the lead portion.

公开(公告)号：US20220076879A1

公开(公告)日：2022-03-10

申请号：US17465503

申请日：2021-09-02

Applicant: TDK CORPORATION

Inventor： Takashi ARASAWA ,  Kouyu OHI ,  Yusuke KIMOTO ,  Tomoya TSUBAI

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

Abstract: A coil device includes a core having a flange portion connected to winding core portions; wires wound around the winding core portions; and terminal electrodes fixed to the core. The terminal electrodes have wire connectable portions to which lead portions of the wires are connected. In the wire connectable portions, the lead portions are connected to the terminal electrodes at positions separated from an upper surface of the flange portion by a predetermined height.

公开(公告)号：US20210065960A1

公开(公告)日：2021-03-04

申请号：US17002094

申请日：2020-08-25

Applicant: TDK CORPORATION

Inventor： Ryoei SHINOHARA ,  Takashi ARASAWA ,  Yoshihiro KAWASAKI ,  Munehito NISHIMURA

IPC: H01F27/24 ,  H01F27/29 ,  H01F41/04 ,  H01F41/02

Abstract: A coil device includes: a drum core having first and second flange portions and a winding core portion therebetween; a coil wound around the core portion; a plate core connected to first and second flange portions first and second flange surfaces at a first direction side; a first electrode terminal on the first flange portion, one coil end portion electrically connected on the first electrode terminal; and a second electrode terminal on the second flange portion, the other coil end portion electrically connected on the second electrode terminal. The plate core has a first and second projecting portions respectively protruding toward the first and second flange surfaces and having first and second flat surfaces facing the first and second flange surfaces. The drum core and the plate core are connected by abutting and bonding the first and second flange surfaces against the first and second flat surfaces.