公开(公告)号：US20160111206A1

公开(公告)日：2016-04-21

申请号：US14787376

申请日：2014-04-07

Applicant: FDK CORPORATION

Inventor： Yuki TAKEUCHI ,  Takashi TAKIGUCHI ,  Kiyoshi HIRONAKA ,  Satoshi OTA

IPC: H01F27/32 ,  H01F27/28

CPC classification number: H01F27/325 ,  H01F27/2823 ,  H01F27/2866 ,  H01F27/2871 ,  H01F2005/022 ,  H01F2005/025

Abstract: A transformer capable of readily ensuring a predetermined insulation distance with no increase in the overall size of the transformer and further capable of reducing the number of constituent parts to achieve cost reduction. According to the present invention, the transformer includes a first bobbin having a wire winding section and a flange formed at an end of the wire winding section, a first coil wound around the wire winding section of the first bobbin, a second coil disposed coaxially with the first coil and adjacent to the flange, and a core disposed around the outer circumferences of the first and second coils to form a closed magnetic circuit, and a tubular protrusion that axially extends and surrounds the outer circumference of the second coil is formed along an outer circumferential portion of the flange of the first bobbin.

Abstract translation: 一种变压器，其能够容易地确保预定的绝缘距离，而不增加变压器的总体尺寸，并且还能够减少组成部件的数量以实现成本降低。 根据本发明，变压器包括：第一线圈架，其具有线绕组部分和形成在线绕部分的端部处的凸缘，缠绕在第一线轴的线绕部分上的第一线圈，与第一线圈同轴设置的第二线圈， 所述第一线圈并且邻近所述凸缘，以及围绕所述第一和第二线圈的外周设置的芯以形成闭合磁路，并且沿着所述第一线圈的外周形成沿轴向延伸并围绕所述第二线圈的外周的管状突起 第一筒管的凸缘的外圆周部分。