公开(公告)号：US08878640B2

公开(公告)日：2014-11-04

申请号：US14189191

申请日：2014-02-25

Applicant: FDK Corporation

Inventor： Kenichirou Suzuki ,  Kiyoshi Hironaka ,  Yutaka Ikeda

IPC: H01F27/02

CPC classification number: H01F27/2852 ,  H01F27/324

Abstract: A common mode choke coil includes a quadrilateral core 4; first and second core covers 2, 3 disposed opposite to each other on the upper and lower surfaces of the core 4 so as to cover the outer periphery of the core 4; and rectangular copper wires 8 wound on the opposite side portions of the core 4 of the first and second core covers 2, 3. The second core cover 3 is disposed on a component-mounting face. The first and second core covers 2, 3 include a pair of linear portions surrounding the corresponding opposite sides of the core 4 which linear portions constitute winding portions 5. The lower surface of the second core cover 3 has a pedestal portion 6 which protrudes more toward the component-mounting face than the winding portions 5, and extends out along the component-mounting face in a direction perpendicular to axis lines of the winding portions 5. The lower face at the tip of the protruding part of the pedestal portion 6 has seat faces 6a on which parts of the rectangular copper wires 8 drawn from the winding portions 5 toward the component-mounting face are provided as mounting terminals 12. Tip portions of the rectangular copper wires 8 are bent upward from the seat faces 6a at the edge of the tip of the protruding part of the pedestal portion.

Abstract translation: 共模扼流线圈包括四边形芯4; 在芯体4的上表面和下表面上彼此相对布置以覆盖芯部4的外周的第一和第二芯部覆盖物2,3; 以及缠绕在第一和第二芯套2,3的芯体4的相对侧部上的矩形铜线8.第二芯盖3设置在部件安装面上。 第一和第二芯覆盖物2,3包括围绕芯部4的相应相对侧的一对直线部分，线性部分构成卷绕部分5.第二芯部覆盖物3的下表面具有基座部分6， 部件安装面与绕线部5成一体，沿着与绕线部5的轴线垂直的方向沿着部件安装面延伸。底座部6的突出部的前端的下表面具有座 矩形铜线8的从卷绕部5朝向部件安装面拉出的部分被设置为安装端子12.矩形铜线8的尖端部分在座面6a的边缘处向上弯曲 基座部分的突出部分的尖端。

公开(公告)号：US09640307B2

公开(公告)日：2017-05-02

申请号：US14648831

申请日：2013-10-29

Applicant: FDK CORPORATION

Inventor： Masami Miyamoto ,  Yutaka Ikeda ,  Akihiro Fujii

IPC: H01F27/30 ,  H01F27/29 ,  H01F27/28 ,  H01F5/02 ,  H01F30/00 ,  H01F27/32

CPC classification number: H01F5/02 ,  H01F27/2823 ,  H01F27/325 ,  H01F30/00 ,  H01F2005/022 ,  H01F2005/025

Abstract: A transformer in which the high-voltage and low-voltage coils are easily laminated when they are alternately laminated in their axial directions, improving power efficiency. The transformer includes: a high-voltage coil including a wire wound around a cylindrical winding drum of a bobbin which is provided with flanges on both ends of the winding drum; a low-voltage coil formed of a flat plate member having an open ring shape, the low-voltage and high-voltage coils being alternately laminated in their axial directions; and a cover member which has a ring plate shape and is coaxially laminated on an outside of a laminate in an axial direction. The low-voltage coil is between the high-voltage coil and the cover member, and a wall portion protruding in the axial direction from the bobbin of the high-voltage coil and a wall portion protruding in the axial direction of the cover member are alternately disposed.