公开(公告)号：US20160055960A1

公开(公告)日：2016-02-25

申请号：US14779578

申请日：2014-03-20

Applicant: FDK CORPORATION

Inventor： Koji KANEKO ,  Hideyuki AKIYAMA ,  Takayuki SUZUKI ,  Satoshi OTA

IPC: H01F27/28 ,  H01F27/02

CPC classification number: H01F27/2823 ,  H01F27/02 ,  H01F27/2866 ,  H01F27/29 ,  H01F27/324 ,  H01F27/325 ,  H01F30/00

Abstract: A power supply transformer that can ensure a desired inter-coil creeping distance with no risk of insulation breakdown when high voltage is applied. The power supply transformer includes a case having a bottomed double tubular shape, a first coil accommodated between inner and outer tubes of the case, a lid body that closes an upper opening of the case, a second coil disposed on the upper surface of the lid body, and a core surrounding the case and the second coil. The first coil is formed only of a round wire wound in multiple layers. The lid body has a flat plate section on which the second coil is placed and a tubular inner wall section and outer wall section that cover the inner and outer circumferences of the second coil and stand on the flat plate section.

Abstract translation: 一种电源变压器，可以确保所需的线圈间距，同时施加高压时不会有绝缘击穿的危险。 电源变压器包括具有有底双管状的壳体，容纳在壳体的内管和外管之间的第一线圈，封闭壳体的上开口的盖体，设置在盖的上表面上的第二线圈 主体和围绕壳体和第二线圈的芯体。 第一线圈仅由缠绕成多层的圆形线形成。 盖体具有平板部分，第二线圈被放置在该平板部分上，并且管状内壁部分和外壁部分覆盖第二线圈的内圆周和外圆周并且平放在平板部分上。

公开(公告)号：US20150302981A1

公开(公告)日：2015-10-22

申请号：US14378756

申请日：2012-12-25

Applicant: FDK CORPORATION

Inventor： Koji KANEKO ,  Satoshi OTA

IPC: H01F27/34 ,  H01F27/24 ,  H01F27/28

CPC classification number: H01F27/346 ,  H01F3/14 ,  H01F27/24 ,  H01F27/28 ,  H01F38/08

Abstract: There is provided a transformer in which leakage inductance can be adjusted arbitrarily and which can be readily processed and achieves reduction in size. The transformer includes: a primary coil (10) and a secondary coil (12); and a core (14) that forms an annular closed magnetic circuit by being arranged across the primary coil and the secondary coil. A magnetic body (15) having a cross-sectional area smaller than a cross-sectional area of the core is arranged between the primary coil (10) and the secondary coil (12) so as to interpose a spacing between both of its end parts and the core and so as to make a short-cut of the annular closed magnetic circuit.

Abstract translation: 提供了一种变压器，其中可以任意地调节漏电感并且可以容易地处理并实现尺寸的减小。 变压器包括：初级线圈（10）和次级线圈（12）; 以及通过跨越初级线圈和次级线圈布置形成环形闭合磁路的铁心（14）。 在初级线圈（10）和次级线圈（12）之间布置有横截面积小于芯部横截面面积的磁体（15），以便在其两端部 和核心，以便制造环形闭合磁路的快捷方式。