公开(公告)号：US20150235758A1

公开(公告)日：2015-08-20

申请号：US14624442

申请日：2015-02-17

Applicant: TDK CORPORATION

Inventor： Nobuo TAKAGI ,  Setu TSUCHIDA ,  Koji SHIMURA

IPC: H01F27/29

CPC classification number: H01F27/292 ,  H01F17/045 ,  H01F27/2828 ,  H01F27/29 ,  H01F27/30

Abstract: Disclosed herein is a coil component that includes a base, a metal wire that is wound around the base and contains copper, and a terminal electrode that is provided on the base and contains nickel and tin. The terminal electrode includes a wire connection area to which an end portion of the metal wire is connected and which contains a CuNi alloy or a CuNiSn alloy, and a mounting area which is different from the wire connection area. The wire connection area includes a portion that contains a small amount of tin than the mounting area.

Abstract translation: 本文公开了一种线圈部件，其包括基部，围绕基部缠绕并包含铜的金属线，以及设置在基座上并且包含镍和锡的端子电极。 端子电极包括金属线的端部连接并且包含CuNi合金或CuNiSn合金的线连接区域和与导线连接区域不同的安装区域。 电线连接区域包括一个比安装区域少的锡的部分。

公开(公告)号：US20240331919A1

公开(公告)日：2024-10-03

申请号：US18616735

申请日：2024-03-26

Applicant: TDK CORPORATION

Inventor： Hirofumi SASAKI ,  Koji SHIMURA ,  Kyosuke INUI

IPC: H01F27/255 ,  H01F27/28

CPC classification number: H01F27/255 ,  H01F27/2823

Abstract: A coil device comprises a first magnetic material portion containing a magnetic material and having a plate-shaped portion and a protrusion protruding, a metal wire having a winding portion including two or more layers of winding layers, and a second magnetic material portion containing a magnetic material and a resin, having a content ratio of the magnetic material smaller than that of the first magnetic material portion, and covering at least an outer peripheral side of the winding portion, wherein inter-wire spaces defined by circumscribed circles circumscribing three different wire cross sections and having a diameter smaller than a radius of each wire cross section are formed, and first inter-wire spaces not including a magnetic material and second inter-wire spaces including a magnetic material are included in the inter-wire spaces.

公开(公告)号：US20170069420A1

公开(公告)日：2017-03-09

申请号：US15356928

申请日：2016-11-21

Applicant: TDK CORPORATION

Inventor： Nobuo TAKAGI ,  Setu TSUCHIDA ,  Koji SHIMURA

IPC: H01F27/29

CPC classification number: H01F27/292 ,  H01F17/045 ,  H01F27/2828 ,  H01F27/29 ,  H01F27/30

Abstract: Disclosed herein is a coil component that includes a base, a metal wire that is wound around the base and contains copper, and a terminal electrode that is provided on the base and contains nickel and tin. The terminal electrode includes a wire connection area to which an end portion of the metal wire is connected and which contains a CuNi alloy or a CuNiSn alloy, and a mounting area which is different from the wire connection area. The wire connection area includes a portion that contains a small amount of tin than the mounting area.

Abstract translation: 本文公开了一种线圈部件，其包括基部，围绕基部缠绕并包含铜的金属线，以及设置在基座上并且包含镍和锡的端子电极。 端子电极包括金属线的端部连接并且包含CuNi合金或CuNiSn合金的线连接区域和与导线连接区域不同的安装区域。 电线连接区域包括一个比安装区域少的锡的部分。

公开(公告)号：US20240331923A1

公开(公告)日：2024-10-03

申请号：US18616818

申请日：2024-03-26

Applicant: TDK CORPORATION

Inventor： Hirofumi SASAKI ,  Koji SHIMURA ,  Kyosuke INUI

IPC: H01F27/28

CPC classification number: H01F27/2823

Abstract: A coil device comprises a first magnetic material portion containing a magnetic material and having a plate-shaped portion and a protrusion, a metal wire having a winding portion including two or more layers of winding layers wound around the protrusion; and a second magnetic material portion containing a magnetic material and a resin, having a content ratio of the magnetic material smaller than that of the first magnetic material portion, and covering at least an outer peripheral side of the winding portion, wherein a set of wire cross sections is deformed with respect to a perfect circle such that a center-to-center distance of at least one set of adjacent wire cross sections is shorter than in case that the set of wire cross sections is a perfect circle, viewed in a predetermined cross section including a winding axis of the winding portion.

公开(公告)号：US20160217919A1

公开(公告)日：2016-07-28

申请号：US15003602

申请日：2016-01-21

Applicant: TDK CORPORATION

Inventor： Hiroyuki IWATA ,  Nobuo TAKAGI ,  Hiroyuki ABE ,  Koji SHIMURA

IPC: H01F27/29 ,  H01F27/28

CPC classification number: H01F27/29 ,  H01F17/045 ,  H01F27/306

Abstract: A coil device includes a magnetic core and terminal electrodes. The terminal electrodes include attachment pieces, wire connection rising pieces, connection pieces, and fillet forming pieces. The wire connection rising pieces are integrally risen from one ends in a longitudinal direction of the attachment pieces along a side surface in the X-axis direction of a flange. The connection pieces are integrally formed with upper end sides of the wire connection rising pieces and have welded balls connected to lead parts of a wire by laser welding. The fillet forming pieces are integrally risen from one ends in a lateral direction crossing the longitudinal direction of the attachment pieces along a side surface in the Y-axis direction of the flange. Laser shielding members are arranged between the welded balls and the flange of a magnetic core.

Abstract translation: 线圈装置包括磁芯和端子电极。 端子电极包括附件，线连接升降件，连接件和圆角成形件。 线连接升降件沿着凸缘的X轴方向的侧面从连接片的纵向方向的一端整体上升。 连接件与电线连接升降件的上端侧整体形成，并且通过激光焊接将焊接球连接到导线的引线部分。 圆角成形片沿着与凸缘的Y轴方向的侧面沿着与安装片的长度方向交叉的横向的一端一体地升起。 激光屏蔽构件设置在焊接球和磁芯的凸缘之间。