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    • 1. 发明专利
    • Step-up transformer
    • 升压变压器
    • JP2013214628A
    • 2013-10-17
    • JP2012084414
    • 2012-04-03
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOTSUCHIDA SETSUHARADA HIDEAKIKATO YUTASUZUKI HIROSHI
    • H01F30/00H01F27/28
    • PROBLEM TO BE SOLVED: To prevent a primary winding from relaxing into contact with a high voltage portion of a secondary winding.SOLUTION: A step-up transformer 1 includes: a drum core 2 having a core part 3; a primary winding 6 wound on the core part 3; and a secondary winding 7 wound on the core part 3 together with the primary winding 6 and having a smaller diameter and a larger number of turns than the primary winding 6. The secondary winding 7 is wound in multiple layers on the core part 3, and the primary winding 6 is regularly wound in a single layer on the secondary winding 7 wound on the core part 3. The secondary winding 7 includes a first winding part wound in multiple layers where the first layer of winding starts at one end of the core part 3 and turns back at a first turnback point positioned in the middle of winding from the one end 3A to the other end 3B, and a second winding part wound in multiple layers with a turnback at a second turnback point U1 positioned nearer to the other end 3B than to the primary winding part.
    • 要解决的问题:为了防止初级绕组松弛与次级绕组的高压部分接触。解决方案:升压变压器1包括:具有芯部3的鼓芯2; 卷绕在芯部3上的初级绕组6; 以及次级绕组7,其与初级绕组6一起卷绕在芯部3上,并且具有比初级绕组6小的直径和较大的匝数。次级绕组7以多层卷绕在芯部3上,并且 初级绕组6规则地缠绕在缠绕在芯部3上的次级绕组7上的单层中。次级绕组7包括缠绕在多层中的第一绕组部分,其中第一层绕组在芯部的一端开始 并且在位于从一端3A到另一端3B的卷绕中间的第一折回点处回转,并且在位于更靠近另一端的第二回转点U1处的折回处被缠绕成多层的第二缠绕部分 3B相对于初级绕组部分。
    • 2. 发明专利
    • Transformer
    • 变压器
    • JP2012114369A
    • 2012-06-14
    • JP2010264074
    • 2010-11-26
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOHARADA HIDEAKITSUCHIDA SETSUKAWAHARA KEISUKE
    • H01F27/29H01F17/04
    • PROBLEM TO BE SOLVED: To provide a transformer that can improve a DC superposition characteristic without causing an eddy current loss.SOLUTION: An opposite region of a plate core 3 opposite to a top surface 23U is provided with a first opposite portion 31 that is not opposite to an input terminal 6 and an output terminal 7, and second opposite portions 32 that are opposite to the input terminal 6 and the output terminal 7. Between the top surface 23U and the first opposite portion 31, spacers 34, 34 form a first clearance d1. Between the input terminal 6 and the output terminal 7 and the second opposite portions 32, recesses of the plate core 3 corresponding to the second opposite portions 32 form a second clearance d2 larger than the first clearance d1. A magnetic flux passes between the top surface 23U and the first opposite portion 31, where the first clearance d1 is formed, and less of it passes between the input terminal 6 and the output terminal 7 and the plate core 3, where the second clearance d2 larger than the first clearance d1 is formed.
    • 要解决的问题:提供一种可以提高直流叠加特性而不引起涡流损耗的变压器。 解决方案:与顶表面23U相对的板芯3的相对区域设置有与输入端子6和输出端子7不相反的第一相对部分31和与其相对的第二相对部分32 到输入端子6和输出端子7.在顶表面23U和第一相对部分31之间,间隔物34,34形成第一间隙d1。 在输入端子6和输出端子7与第二相对部分32之间,对应于第二相对部分32的板芯3的凹部形成比第一间隙d1大的第二间隙d2。 磁通通过顶表面23U和形成第一间隙d1的第一相对部分31之间,并且较小的磁通在输入端子6与输出端子7与板芯3之间通过,其中第二间隙d2 大于第一间隙d1形成。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Transformer
    • 变压器
    • JP2011096798A
    • 2011-05-12
    • JP2009248435
    • 2009-10-29
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOHARADA HIDEAKISATO TAKATERUTSUCHIDA SETSUKUROSHIMA TOSHIHIRO
    • H01F19/04H01F30/00
    • PROBLEM TO BE SOLVED: To provide a transformer that facilitates winding of a winding wire, and ensures good magnetic coupling between primary and secondary windings. SOLUTION: The secondary winding 22 is wound by 44 turns from one end in an axial direction of a winding core 13 to the other end so as to abut on the circumferential surface of the winding core 13 immediately above the circumferential surface of the winding core 13, thereby forming a winding section 22-1 immediately above circumferential surface. Of the residual 35 turns in 79 turns of the secondary winding 22, the 18 turns subsequent to the winding section 22-1 immediately above the circumferential surface are wound on the winding sections 22-1. The residual 17 turns are further wound on the 18 turns wound on the winding section 22-1 immediately above the circumferential surface. The 17 turns and 18 turns form a residual section layer-like winding section 22-2. The primary winding 21 is such that 12 turns are all wound on the winding section 22-1 immediately above the circumferential surface and over the entire of a section where the residual section layer-like winding section 22-2 is not formed. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种有助于卷绕线圈的变压器,并确保初级和次级绕组之间良好的磁耦合。 解决方案:次级绕组22从绕组芯13的轴向方向的一端缠绕44匝到另一端,以便紧挨在绕组芯13的圆周表面正上方的圆周表面上 卷绕芯13,从而在圆周表面的正上方形成卷绕部22-1。 在次级绕组22的79匝的剩余35匝中,紧挨着周面的上方的卷绕部22-1的18匝被缠绕在卷绕部22-1上。 剩余的17匝进一步缠绕在紧挨着圆周表面上方的缠绕部分22-1上的18匝上。 17匝和18匝形成残余截面层状缠绕部分22-2。 初级绕组21使得在圆周表面正上方的绕组部分22-1以及没有形成剩余部分层状绕组部分22-2的部分的全部卷绕12匝。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Coil component and method of manufacturing the same
    • 线圈组件及其制造方法
    • JP2010093216A
    • 2010-04-22
    • JP2008264643
    • 2008-10-10
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOTSUCHIDA SETSUITO TOMOKAZUKUROSHIMA TOSHIHIRO
    • H01F27/29H01F19/06H01F41/10
    • PROBLEM TO BE SOLVED: To prevent wettability deterioration of solder on terminal electrodes in a coil component which uses a drum-type core. SOLUTION: The coil component includes: a drum-type core 110 having a wound core 111 and a pair of collars 112, 113; terminal electrodes 141 to 146 provided on the collars 112, 113; and primary and secondary windings wound around the core 111. The secondary winding includes a wire 132 from one end to a center tap and a wire 133 from the other end to the center tap, while the wires 132 and 133 are wound around the core 111 in a manner mutually meeting each other. Since electrode areas of terminal electrodes 141, 144 are larger than those of other terminal electrodes 142, 143, 145, 146, heat loads applied to terminal electrodes 141, 144 can be mitigated when both ends of the wires 132, 133 that constitute the secondary winding are thermocompression-bonded to the terminal electrodes, and it is possible to prevent wettability deterioration of the solder on the terminal electrodes 141, 144. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了防止使用鼓型芯的线圈部件中的焊料在端子电极上的润湿性劣化。 线圈部件包括:鼓型芯110,其具有缠绕芯111和一对套环112,113; 设在套环112,113上的端子电极141〜146; 并且绕芯111缠绕的初级和次级绕组。次级绕组包括从一端到中心抽头的导线132和从另一端到中心抽头的导线133,而导线132和133缠绕在芯111上 以相互见面的方式。 由于端子电极141,144的电极面积大于其它端子电极142,143,145,146的电极面积,所以当构成二次侧电极的导线132,133的两端部时,能够缓和施加于端子电极141,144的热负荷 绕组与端子电极热压接合,并且可以防止端子电极141,144上的焊料的润湿性劣化。版权所有:(C)2010,JPO&INPIT
    • 7. 发明专利
    • Pulse transformer
    • 脉冲变压器
    • JP2014192324A
    • 2014-10-06
    • JP2013066275
    • 2013-03-27
    • Tdk CorpTdk株式会社
    • TAKAGI NOBUOTSUCHIDA SETSUMIKOGAMI YU
    • H01F19/04H01F17/04H01F27/29
    • H01F27/29H01F3/10H01F27/2828H01F27/292
    • PROBLEM TO BE SOLVED: To provide a pulse transformer capable of sufficiently securing a degree of freedom of layout while sufficiently securing a dielectric voltage at a primary side and a secondary side.SOLUTION: In a flange part 4A of a drum core 2, terminal electrodes P1 and N1 and a center tap CT2 are provided and in a flange part 4B of the drum core 2, terminal electrodes P2 and N2 and a center tap CT1 are provided. The terminal electrodes P1 and N1 and the center tap CT1 are connected and the terminal electrodes P2 and N2 and the center tap CT2 are connected by wires S1-S4, respectively. A size of the drum core 2 in an X direction and a size in a Y direction are equal, such that a planar shape becomes a square. Thus, even when a packaging direction of a pulse transformer 1 is changed at 90°, a shape of a packaging region on a printed circuit board is not changed. Therefore, a degree of freedom of layout on the printed circuit board can be improved.
    • 要解决的问题:提供一种足够确保布置自由度的脉冲变压器,同时充分确保初级侧和次级侧的电介质电压。解决方案:在鼓芯2的凸缘部分4A中,端子电极 设置P1和N1以及中心抽头CT2,并且在鼓芯2的凸缘部分4B中设置端子电极P2和N2以及中心抽头CT1。 端子电极P1和N1以及中心抽头CT1连接,并且端子电极P2和N2以及中心抽头CT2分别通过导线S1-S4连接。 鼓芯2在X方向上的尺寸和Y方向上的尺寸相等,使得平面形状变为正方形。 因此,即使当脉冲变压器1的封装方向变为90°时,印刷电路板上的封装区域的形状也不改变。 因此,可以提高印刷电路板上的布局自由度。
    • 8. 发明专利
    • Coil component and manufacturing method therefor
    • 线圈组件及其制造方法
    • JP2013191693A
    • 2013-09-26
    • JP2012056248
    • 2012-03-13
    • Tdk CorpTdk株式会社
    • TAKAGI NOBUOKOBAYASHI KAZUMIKYOSEKI SATORUTSUCHIDA SETSU
    • H01F27/29H01F27/02H01F27/28H01F41/04
    • PROBLEM TO BE SOLVED: To provide a coil component which is not affected by burr occurring when being cut after thermocompression bonding, and the terminal part of which can be positioned easily, and to provide a manufacturing method therefor.SOLUTION: A coil component 1 includes coils 2-5 formed by winding a wire, and lead terminals 7a-7f, 8a-8f for connection with the terminals of the coils. Each lead terminal 7a-7f, 8a-8f has a wire joint part 11 having a compression bonding part of the terminal, and a mounting part 12 provided at a part different from the wire joint part 11 and being connected with a mounting board. A cut groove 11n is provided in the wire joint part 11, and located on the extension of the terminal.
    • 要解决的问题:提供一种线圈部件,其在热压接后切割时不会产生毛刺,并且其端子部分可以容易地定位,并提供其制造方法。解决方案:线圈部件1包括 通过缠绕线形成的线圈2-5和用于与线圈的端子连接的引线端子7a-7f,8a-8f。 每个引线端子7a-7f,8a-8f具有具有端子的压接部的线接合部11和设置在与线接合部11不同的部分并与安装板连接的安装部12。 切割槽11n设置在线接合部11中,并且位于终端的延伸部上。
    • 9. 发明专利
    • Transformer
    • 变压器
    • JP2013077857A
    • 2013-04-25
    • JP2013017229
    • 2013-01-31
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOHARADA HIDEAKITSUCHIDA SETSUKAWAHARA KEISUKE
    • H01F17/04H01F27/29
    • PROBLEM TO BE SOLVED: To provide a transformer in which DC superposition characteristics can be improved without generating an eddy current loss.SOLUTION: In a plate-like core 3, in a counter portion opposed with a top face 23U, there are formed a first counter portion 31 which is not opposed to an input terminal 6 and an output terminal 7, and a second counter portion 32 opposed with the input terminal 6 and the output terminal 7. Furthermore, between the top face 23U and the first counter portion 31, a first gap d1 is formed by spacers 34, 34. Moreover, between the input and output terminals 6 and 7 and the second counter portion 32, a second gap d2 larger than the first gap d1 is formed by a clearance part of the plate-like core 3 provided correspondingly to the second counter portion 32. Thus, a magnetic flux passes between the top face 23U in which the first gap d1 is formed and the first counter portion 31, and is suppressed from passing between the input and output terminals 6 and 7 in which the second gap d2 larger than the first gap d1 is formed and the plate-like core 3.
    • 要解决的问题:提供一种其中可以改善DC叠加特性而不产生涡流损耗的变压器。 解决方案:在板状芯3中,在与顶面23U相对的相对部分中形成有不与输入端子6和输出端子7相对的第一计数器部分31,和第二 与输入端子6和输出端子7相对的计数器部分32.此外,在顶面23U和第一计数器部分31之间,由间隔物34,34形成第一间隙d1。此外,在输入端子6和输出端子6之间 7和第二计数器部分32,大于第一间隙d1的第二间隙d2由对应于第二计数器部分32设置的板状铁芯3的间隙部分形成。因此,磁通量在顶部 形成第一间隙d1的面23U和第一相对部31,并且被抑制在形成有大于第一间隙d1的第二间隙d2的输入和输出端子6,7之间,并且板状 核心3.版权所有(C)2013,JPO&INPIT
    • 10. 发明专利
    • Coil component and surface-mounted pulse transformer
    • 线圈组件和表面安装脉冲变压器
    • JP2012248610A
    • 2012-12-13
    • JP2011117969
    • 2011-05-26
    • Tdk CorpTdk株式会社
    • TOMONARI HISAOTAKAGI NOBUOASAKAWA KIMIOTSUCHIDA SETSU
    • H01F27/00H01F19/04H01F27/29H01F41/10
    • PROBLEM TO BE SOLVED: To restrain overshoot or undershoot more inexpensively than addition of a notch filter.SOLUTION: A surface mounted pulse transformer 10 comprises: a winding core part 11a; and wires S1, S2 bifilar-wound around the winding core part 11a by plural turns. A relative position of the wires S1, S2 at least in one turn (turn A1, A2) is reversed compared to the other turns. Thereby, the reverse turn is provided to increase a leakage magnetic flux, so that overshoot or undershoot can be restrained. Also, only the reverse turn may be provided, and therefore, overshoot or undershoot can be restrained more inexpensively than addition of a notch filter.
    • 要解决的问题:比添加陷波滤波器更便宜地抑制过冲或下冲。 解决方案:表面安装脉冲变压器10包括:卷绕芯部分11a; 以及绕绕芯部11a绕线缠绕多圈的线S1,S2。 电线S1,S2的至少一圈(转A 1,A 2)的相对位置与其他匝相反。 由此,提供反向转动以增加泄漏磁通量,从而可以抑制过冲或下冲。 而且,仅可以提供反向转动,因此可以比添加陷波滤波器更便宜地抑制过冲或下冲。 版权所有(C)2013,JPO&INPIT