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公开(公告)号:US20170221626A1
公开(公告)日:2017-08-03
申请号:US15487784
申请日:2017-04-14
Applicant: TDK CORPORATION
Inventor: Toshio TOMONARI , Tsutomu KOBAYASHI , Kazunori ARIMITSU , Yuma KOMAYA
CPC classification number: H01F27/2823 , H01F17/045 , H01F27/29 , H01F2017/0093
Abstract: A device is provided that includes a core having a first end and a second end, and first and second wires wound around the core so as to cross each other on the core to form a cross point. The a winding structure of an ith turn of the first and second wires counting from the cross point toward the first end, and a winding structure of an ith turn of the first and second wires counting from the cross point toward the second end, are substantially symmetrical about the cross point.
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公开(公告)号:US20150042436A1
公开(公告)日:2015-02-12
申请号:US14444304
申请日:2014-07-28
Applicant: TDK CORPORATION , EPCOS AG
Inventor: Kazunori ARIMITSU , Hiroshi SUZUKI , Yuma KOMAYA , Hideki SASAKI , Tomonao SUTO , Joern SCHLIEWE , Joachim NASSAL , Anneliese DRESPLING
IPC: H01F27/29
CPC classification number: H01F27/29 , H01F17/045 , H01F27/292
Abstract: In a coil component, a shortest distance from a longitudinal wall of a flange portion of a drum core to a wire fixing portion is smaller than a shortest distance of the longitudinal wall to an electrode wire connecting portion by a convex portion formed at the longitudinal wall of the flange portion. That is, since a gap between the flange portion of the drum core and the wire fixing portion is small (or there is no gap), the wire fixing portion can be sufficiently bent. Accordingly, the wire can be securely fixed by a wire fixing portion of a metal terminal.
Abstract translation: 在线圈部件中,从鼓芯的凸缘部分的纵向壁到线固定部分的最短距离小于通过形成在纵向壁处的凸部的纵向壁与电极线连接部分的最短距离 的凸缘部。 也就是说,由于鼓芯的凸缘部分和电线固定部分之间的间隙小(或没有间隙),所以电线固定部分可以被充分弯曲。 因此,金属丝可以通过金属端子的线固定部牢固地固定。
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公开(公告)号:US20140167903A1
公开(公告)日:2014-06-19
申请号:US14132550
申请日:2013-12-18
Applicant: TDK CORPORATION
Inventor: Toshio TOMONARI , Tsutomu KOBAYASHI , Kazunori ARIMITSU , Yuma KOMAYA
IPC: H01F27/28
CPC classification number: H01F27/2823 , H01F17/045 , H01F27/29 , H01F2017/0093
Abstract: A common mode filter includes first and second wires wound around a winding core portion by the same number of turns. Each of the first and second wires is wound by a number m1 of turns in a first winding area and wound by a number m2 of turns in a second winding area. A distance D1 between an n1th turn (1≦n1≦m1−1) of the second wire and an n1+1th turn of the first wire is shorter than a distance D2 between an n1th turn of the first wire and an n1+1th turn of the second wire in the winding area. A distance D3 between an n2th (m1+1≦n2≦m1+m2−1) turn of the first wire and an n2+1th turn of the second wire is shorter than a distance D4 between an n2th turn of the second wire and an n2+1th turn of the first wire in the winding area.
Abstract translation: 共模滤波器包括缠绕在绕组芯部分上相同匝数的第一和第二线。 第一线和第二线中的每一条在第一绕组区域中缠绕数m1匝,并在第二绕组区域中缠绕数m2匝。 第二线的第n1匝(1≦̸ n1≦̸ m1-1)与第一线的第n1 + 1匝之间的距离D1短于第一线的第n匝和第n1 + 1匝之间的距离D2 的绕组区域中的第二根线。 第一线的第n2(m1 + 1≦̸ n2≦̸ m1 + m2-1)之间的距离D3和第二线的n2 + 1圈的距离D3短于第二线的第n2圈与 n2 +第1圈绕线区域的第一根线。
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公开(公告)号:US20240282509A1
公开(公告)日:2024-08-22
申请号:US18583137
申请日:2024-02-21
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Kiichi FUJISAWA , Masashi HAMA , Nobuo KITAJIMA , Makoto TAKAHASHI , Katsushi YASUHARA , Hironobu FURUKAWA , Ryuya KON
CPC classification number: H01F27/292 , H01F27/24
Abstract: A coil device has a wound portion, a leadout portion led out from the wound portion in a first direction, and an element body covering the wound portion and the leadout portion. A winding axis of the wound portion is perpendicular to a mounting facing surface of the element body and is displaced to a second direction opposite to the first direction with respect to a center of the element body. An outer circumferential surface of the wound portion is distorted so as to bulge outward in the first direction from the outer circumferential surface of the wound portion.
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公开(公告)号:US20230162907A1
公开(公告)日:2023-05-25
申请号:US17986033
申请日:2022-11-14
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA , Kiichi FUJISAWA
Abstract: An inductor includes a coil; terminals including wire connecting portions connected to lead portions of the coil, and base portions positioned at substantially the same height as a bottom surface of the coil and holding the wire connecting portions; and a core covering the coil together with the wire connecting portions and the base portions. The base portions include main branch portions and sub branch portions. Inner edges of the main branch portions are formed with curved portions curved along an outer peripheral surface of the coil at positions separated from the outer peripheral surface of the coil, respectively. Inner edges of the sub branch portions are formed with curved portions curved along the outer peripheral surface of the coil at positions separated from the outer peripheral surface of the coil, respectively.
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公开(公告)号:US20220020528A1
公开(公告)日:2022-01-20
申请号:US17375760
申请日:2021-07-14
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA
IPC: H01F27/29 , H01F27/255 , H01F27/28
Abstract: An inductor includes: a coil; terminals connected to end portions of the coil; a first core having a columnar portion where the coil is disposed and a base portion having an upper surface where the columnar portion is formed; and a second core covering the upper surface of the base portion together with the coil. The terminals are disposed on the upper surface of the base portion.
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公开(公告)号:US20210125772A1
公开(公告)日:2021-04-29
申请号:US17141695
申请日:2021-01-05
Applicant: TDK Corporation
Inventor: Toshio TOMONARI , Tsutomu KOBAYASHI , Kazunori ARIMITSU
Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.
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公开(公告)号:US20180012699A1
公开(公告)日:2018-01-11
申请号:US15618812
申请日:2017-06-09
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Shunpei KIKUCHI , Akiumi OBA
CPC classification number: H01F27/29 , H01F17/04 , H01F27/022 , H01F27/24 , H01F27/255 , H01F27/2828 , H01F27/292 , H01F27/30 , H01F2017/048
Abstract: At the position where the lead art of the wire is projecting out from the outer face of the core part and spaced apart from the side face, the bonding part between the lead part and the terminal electrode is formed. The terminal electrode comprises the terminal body installed along the side face of the core body, and the lead supporting part bended from the terminal body towards the bonding part at the near position where the lead part projects out from the side face of the core part. The crossing angle of the lead supporting part with respect to the side face of the core body is less than 90 degrees.
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