JP2009252787A - Coil component - Google Patents

Coil component Download PDF

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JP2009252787A
JP2009252787A JP2008095047A JP2008095047A JP2009252787A JP 2009252787 A JP2009252787 A JP 2009252787A JP 2008095047 A JP2008095047 A JP 2008095047A JP 2008095047 A JP2008095047 A JP 2008095047A JP 2009252787 A JP2009252787 A JP 2009252787A
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winding
insulating resin
primary winding
bobbin
plate
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JP5105178B2 (en
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Kazumi Kobayashi
一三 小林
Kenichi Yamaguchi
賢一 山口
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TDK Corp
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TDK Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil component that can meet the UL standard (UL60950) and can be reduced in height. <P>SOLUTION: The coil component has a first insulating resin bobbin module, comprising a first bobbin plate-like section 41A arranged opposite to second primary winding 32 in the axial direction of the second primary winding 32, the second primary winding 32 at a side opposite to the second primary winding 32 relative to the first bobbin plate-like section 41A, and secondary winding 42 arranged opposite to the first bobbin plate-like section 41A coaxially. In the axial direction of the primary winding and secondary winding 42, the primary winding and the secondary winding 42 are divided by one first bobbin plate-like section 41A using the first insulating resin bobbin module, thus achieving the coil component 1 meeting the UL standard (UL60950) without performing any taping among a plurality of wires that has been performed in the prior art. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明はコイル部品に関し、特に電源装置などに用いられるトランスやチョークコイルなどのインダクタンス部品であって、複数のコイルと当該複数のコイルを挿通するコアとを備えるインダクタンス部品等のコイル部品に関する。   The present invention relates to a coil component, and more particularly to an inductance component such as a transformer or a choke coil used in a power supply device and the like, and including a plurality of coils and a core through which the plurality of coils are inserted.

スイッチング電源やインバータ等に使用されるトランスやチョークコイル等のインダクタンス部品は、コアとコイルを主要な構成要素とし、コイル間の相互電磁誘導作用に基づいて、交流電圧の変圧を行ったり、入力回路と出力回路との間の絶縁等を行なったりする場合に利用される電子部品たるコイル部品として従来より知られている。   Inductor components such as transformers and choke coils used in switching power supplies and inverters have cores and coils as main components, and perform AC voltage transformation or input circuit based on mutual electromagnetic induction between coils. Conventionally, it is known as a coil component that is an electronic component that is used in the case of performing insulation between an output circuit and an output circuit.

インダクタンス部品の中でも特にトランスは、接続される回路の種類や仕様によって容量や形状等が多種多様であり、一般に、回路の中で最後に仕様が決定する回路部品である。そして、その構成要素であるコイルは、使用する巻線の線径や、巻数、巻回方法等によって仕様が複雑に変化する。   Among inductance components, in particular, a transformer has various capacities and shapes depending on the type and specification of a circuit to be connected, and is generally a circuit component whose specification is determined last in the circuit. The specifications of the coil, which is a constituent element, vary in a complicated manner depending on the wire diameter, the number of turns, the winding method, and the like.

従来より一般に用いられているトランス用コイルでは、特開平11−251160号公報(特許文献1)に記載されているように、使用するボビンの数が1つであるため、巻き芯となる筒部の両端側にのみ鍔が設けられている構造となっている。また、同公報記載のトランスは、一つのボビンに複数の巻線を巻回する構造であることから、予めコイルをボビンに巻回しておくことができないため、注文から納入までに長期間を要するうえ、仕様の変更や改良等に柔軟に対応することができなかった。   In a transformer coil generally used conventionally, as described in Japanese Patent Laid-Open No. 11-251160 (Patent Document 1), since the number of bobbins to be used is one, a cylindrical portion serving as a winding core It has a structure in which ridges are provided only on both ends. Moreover, since the transformer described in the publication has a structure in which a plurality of windings are wound around one bobbin, the coil cannot be wound around the bobbin in advance, and thus it takes a long time from order to delivery. In addition, it was not possible to flexibly deal with changes and improvements in specifications.

そこで、複数の薄型コイルを用いたトランスを備える多出力型の電源装置が、例えば特開2001−313220号公報(特許文献2)等において提案されている。この構成の電源装置に使用されているトランスは、コアに対して着脱可能な複数の薄型コイルを備えており、使用する薄型コイルの組み合わせを変更することにより、仕様を変更することが可能である。
特開平11−251160号公報 特開2001−313220号公報
Accordingly, a multi-output type power supply device including a transformer using a plurality of thin coils has been proposed in, for example, Japanese Patent Application Laid-Open No. 2001-313220 (Patent Document 2). The transformer used in the power supply device having this configuration includes a plurality of thin coils that can be attached to and detached from the core, and the specifications can be changed by changing the combination of the thin coils to be used. .
JP-A-11-251160 JP 2001-313220 A

しかし、特開2001−313220号公報記載のトランスに使用されているボビンでは、少なくとも1次巻線を構成する巻回部が露出しており、安全規格、具体的にはUL規格(UL60950)を満足するトランスとするためには、2次巻線に対する1次巻線の絶縁を確保するためにテープを巻回する必要があった。また、2次巻線の絶縁層と1次巻線のボビンとが重なるため、本来であれば一層で済む絶縁層が二層となりボビンの軸方向の厚さが大きくなり部品高さが高くなる問題が生じていた。   However, in the bobbin used in the transformer described in Japanese Patent Application Laid-Open No. 2001-313220, at least the winding part constituting the primary winding is exposed, and the safety standard, specifically, the UL standard (UL 60950) is set. In order to obtain a satisfactory transformer, it was necessary to wind a tape to ensure insulation of the primary winding with respect to the secondary winding. In addition, since the insulating layer of the secondary winding and the bobbin of the primary winding overlap, two layers of insulating layers that would normally be required become two layers, increasing the axial thickness of the bobbin and increasing the component height. There was a problem.

そこで、本発明はUL規格(UL60950)を満足し且つ低背化を図ることができるコイル部品を提供することを目的とする。   Therefore, an object of the present invention is to provide a coil component that satisfies the UL standard (UL 60950) and can be reduced in height.

上記目的を達成するために、本発明は、導線が巻回されてなる1次巻線と、該1次巻線の軸方向において該1次巻線に対向配置された絶縁樹脂板と該絶縁樹脂板に関して該1次巻線とは反対の側に該1次巻線と同軸的に導線が巻回されて該絶縁樹脂板に対向して配置された2次巻線とを有し該1次巻線と共に巻回部ユニットを構成する2次巻線モジュールと、該1次巻線の軸方向における該巻回部ユニットの一端側と他端側とに設けられて該巻回部ユニットを挟持する一対の磁心とを備えるコイル部品を提供している。   In order to achieve the above object, the present invention provides a primary winding formed by winding a conductive wire, an insulating resin plate disposed opposite to the primary winding in the axial direction of the primary winding, and the insulation The resin plate has a secondary winding disposed on the side opposite to the primary winding, the conductor being wound coaxially with the primary winding, and disposed opposite the insulating resin plate. A secondary winding module constituting a winding unit together with the secondary winding, and the winding unit provided on one end side and the other end side of the winding unit in the axial direction of the primary winding; A coil component including a pair of magnetic cores to be sandwiched is provided.

1次巻線の軸方向において1次巻線に対向配置された絶縁樹脂板と絶縁樹脂板に関して1次巻線とは反対の側に1次巻線と同軸的に導線が巻回されて絶縁樹脂板に対向して配置された2次巻線とを有し1次巻線と共に巻回部ユニットを構成する2次巻線モジュールを有するため、2次巻線モジュールにより1次巻線及び2次巻線の軸方向において1次巻線と2次巻線とを1枚の絶縁樹脂板により仕切ることができ、1次巻線及び2次巻線の軸方向における低背化を図ることができる。また、1つの2次巻線モジュールにおいて複数の巻線を巻回するといったことを行わないため、当該複数の巻線間において絶縁を図るために従来行っていたようなテーピングを行わずにUL規格(UL60950)を満たすコイル部品とすることができる。   Insulating resin plate disposed opposite to the primary winding in the axial direction of the primary winding and the insulating resin plate is insulated by winding a conductor coaxially with the primary winding on the opposite side of the primary winding Since it has a secondary winding module that has a secondary winding disposed opposite to the resin plate and forms a winding unit together with the primary winding, the primary winding and 2 In the axial direction of the secondary winding, the primary winding and the secondary winding can be separated by a single insulating resin plate, and the height of the primary and secondary windings in the axial direction can be reduced. it can. In addition, since a plurality of windings are not wound in one secondary winding module, the UL standard is used without performing taping, which has been conventionally performed for insulation between the plurality of windings. It can be set as the coil components which satisfy (UL60950).

ここで、該絶縁樹脂板は、平面状をなす板状部と、該板状部の周縁部において該2次巻線の周面の一部に対向配置された壁部を有することが好ましい。   Here, it is preferable that the insulating resin plate has a planar plate-like portion and a wall portion arranged to face a part of the peripheral surface of the secondary winding at the peripheral portion of the plate-like portion.

絶縁樹脂板は、平面状をなす板状部と、板状部の周縁部において2次巻線の周面の一部に対向配置された壁部を有するため、絶縁樹脂板を複数設けた場合に絶縁樹脂板同士を壁部により互いに嵌合させることができる。   Since the insulating resin plate has a flat plate-like portion and a wall portion disposed opposite to a part of the peripheral surface of the secondary winding at the peripheral portion of the plate-like portion, when a plurality of insulating resin plates are provided Insulating resin plates can be fitted to each other by the wall.

また、該絶縁樹脂板は、平面状をなす板状部と、該板状部の周縁部において該2次巻線の周面の略全体に渡って対向配置された壁部を有することが好ましい。   The insulating resin plate preferably has a planar plate-like portion and a wall portion disposed oppositely over substantially the entire peripheral surface of the secondary winding at the peripheral portion of the plate-like portion. .

絶縁樹脂板は、平面状をなす板状部と、板状部の周縁部において2次巻線の周面の略全体に渡って対向配置された壁部を有するため、壁部が設けられている分だけ1次巻線と2次巻線との間の沿面距離をより長く確保することができる。また、1次巻線、2次巻線の周面が露出することを防止することができるので、1次巻線、2次巻線の周面に傷が付くことを防止することができる。また、コイル部品を基板上に実装する際に、実装基板上でのコイル部品と他部品との間における安全規格上コイル部品の表面全体に絶縁テープを巻回してコイル部品を保護する場合があるが、このように絶縁テープを巻回する際に1次巻線、2次巻線の周面に傷が付くことを防止することができる。   Since the insulating resin plate has a flat plate-like portion and a wall portion that is opposed to the entire peripheral surface of the secondary winding at the peripheral portion of the plate-like portion, the wall portion is provided. As a result, the creepage distance between the primary winding and the secondary winding can be secured longer. Further, since the peripheral surfaces of the primary winding and the secondary winding can be prevented from being exposed, it is possible to prevent the peripheral surfaces of the primary winding and the secondary winding from being damaged. In addition, when mounting a coil component on a substrate, an insulating tape may be wound around the entire surface of the coil component for safety standards between the coil component and other components on the mounting substrate to protect the coil component. However, when the insulating tape is wound in this way, it is possible to prevent the peripheral surfaces of the primary winding and the secondary winding from being damaged.

また、該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、該1次巻線、該2次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、該絶縁樹脂端子台には該導線端部の略全体を覆う導線端部覆部が該1次巻線の軸方向へ延出して設けられていることが好ましい。   Further, an insulating resin terminal block is disposed between the primary winding and one of the magnetic cores, and the primary winding and the secondary winding are coaxially wound with each other and the winding portion. One end portion and the other end portion are drawn from the winding portion, respectively, and the one end portion and the other end portion are pulled out from the winding portion so as to extend substantially outward in the radial direction of the winding portion. A lead wire end extending from the extension end of the lead-out portion toward the insulating resin terminal portion, and the insulating resin terminal block covering the substantially entire lead wire end portion. It is preferable that the part covering part is provided extending in the axial direction of the primary winding.

絶縁樹脂端子台には導線端部の略全体を覆う導線端部覆部が1次巻線の軸方向へ延出して設けられているため、導線端部の大部分を保護することができる。また、1次巻線、2次巻線の露出を少なくすることができるので、実装基板上でのコイル部品と他部品との絶縁を図ることができる。また、コイル部品を基板上に実装する際に、実装基板上でのコイル部品と他部品との間における安全規格上コイル部品の表面全体に絶縁テープを巻回してコイル部品を保護する場合があるが、このように絶縁テープを巻回する際に1次巻線、2次巻線の一端部、他端部に傷が付くことを防止することができる。   Since the insulated resin terminal block is provided with a conductor end cover that covers substantially the entire conductor end, extending in the axial direction of the primary winding, most of the conductor end can be protected. Further, since the exposure of the primary winding and the secondary winding can be reduced, it is possible to insulate the coil component and other components on the mounting substrate. In addition, when mounting a coil component on a substrate, an insulating tape may be wound around the entire surface of the coil component for safety standards between the coil component and other components on the mounting substrate to protect the coil component. However, it is possible to prevent the primary winding and the secondary winding from being damaged at one end and the other end when the insulating tape is wound as described above.

また、該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、該1次巻線、該2次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、該絶縁樹脂板は該2次巻線の軸方向における該2次巻線の巻回部の絶縁樹脂端子台寄りの側に配置され、該1次巻線の軸方向における該1次巻線の巻回部の絶縁樹脂端子台寄りの側には1次絶縁樹脂板が設けられ、該絶縁樹脂板、該1次絶縁樹脂板には該巻回部の略半径方向外方へ延出して該2次巻線の引出し部、該1次巻線の引出し部を支持する支持部、1次支持部がそれぞれ設けられていることが好ましい。   Further, an insulating resin terminal block is disposed between the primary winding and one of the magnetic cores, and the primary winding and the secondary winding are coaxially wound with each other and the winding portion. One end portion and the other end portion are drawn from the winding portion, respectively, and the one end portion and the other end portion are pulled out from the winding portion so as to extend substantially outward in the radial direction of the winding portion. A lead wire portion extending from the extended end of the lead portion toward the insulating resin terminal portion, and the insulating resin plate has the secondary winding in the axial direction of the secondary winding. A primary insulating resin plate disposed on the side of the winding portion of the wire near the insulating resin terminal block, and on the side of the winding portion of the primary winding in the axial direction of the primary winding near the insulating resin terminal block Are provided on the insulating resin plate and the primary insulating resin plate so as to extend outward in the radial direction of the winding portion to support the lead portion of the secondary winding and the lead portion of the primary winding. Support part, primary It is preferred that the lifting unit is provided respectively.

絶縁樹脂板は2次巻線の軸方向における2次巻線の巻回部の絶縁樹脂端子台寄りの側に配置され、1次巻線の軸方向における1次巻線の巻回部の絶縁樹脂端子台寄りの側には1次絶縁樹脂板が設けられ、絶縁樹脂板、1次絶縁樹脂板には巻回部の略半径方向外方へ延出する支持部、1次支持部がそれぞれ設けられているため、2次巻線の引出し部、1次巻線の引出し部を支持することができる。   The insulating resin plate is disposed on the side near the insulating resin terminal block of the winding portion of the secondary winding in the axial direction of the secondary winding, and insulates the winding portion of the primary winding in the axial direction of the primary winding. A primary insulating resin plate is provided on the side closer to the resin terminal block. The insulating resin plate and the primary insulating resin plate have a support portion and a primary support portion that extend substantially outward in the radial direction of the winding portion, respectively. Since it is provided, the lead-out part of the secondary winding and the lead-out part of the primary winding can be supported.

また、該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、該1次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、該絶縁樹脂端子台には導体からなるピン端子が植設され、該ピン端子には該ピン端子の軸方向の全体に渡って該ピン端子の軸方向へ延出する溝が形成され、該溝には該1次巻線の導体端部が該溝の全体に渡って係合し、該導体端部と該ピン端子とは電気的に接続されていることが好ましい。   Further, an insulating resin terminal block is disposed between the primary winding and one of the magnetic cores, and the primary winding is drawn from the winding portion and the winding portion that are coaxially wound with each other. One end portion and the other end portion, and the one end portion and the other end portion are drawn from the winding portion so as to extend outward in the radial direction of the winding portion, A conductive wire end extending from the extended end of the lead-out portion toward the insulating resin terminal portion; a pin terminal made of a conductor is planted on the insulating resin terminal block; the pin terminal includes the pin A groove extending in the axial direction of the pin terminal is formed over the entire axial direction of the terminal, and a conductor end of the primary winding is engaged with the groove over the entire groove, It is preferable that the conductor end and the pin terminal are electrically connected.

絶縁樹脂端子台には導体からなるピン端子が植設され、ピン端子にはピン端子の軸方向の全体に渡ってピン端子の軸方向へ延出する溝が形成され、溝には1次巻線の導体端部が溝の全体に渡って係合し、導体端部とピン端子とは電気的に接続されているため、ピン端子を径の太い導体端部や径の細い導体端部を有する様々な導線に対応させることができる。また、筒状をなすピン端子に挿入する場合より挿入を容易とすることができる。また、絶縁被覆が施された導線を挿入し、後にピン端子の溝に半田を供給して絶縁被覆を溝の開口部から排出させることができる。また、半田を溝内において隙間なく充填させることができる。   A pin terminal made of a conductor is planted in the insulating resin terminal block, and a groove extending in the axial direction of the pin terminal is formed in the entire pin terminal in the pin terminal, and the primary winding is formed in the groove. Since the conductor end of the wire engages over the entire groove and the conductor end and the pin terminal are electrically connected, the pin terminal can be connected to the conductor end with a large diameter or the conductor end with a small diameter. It can be made to correspond to various conducting wires. Further, the insertion can be facilitated as compared with the case of inserting into a cylindrical pin terminal. In addition, it is possible to insert a conductive wire with an insulating coating, and later supply solder to the groove of the pin terminal to discharge the insulating coating from the opening of the groove. Also, the solder can be filled in the groove without any gap.

以上により、本発明はUL規格(UL60950)を満足し且つ低背化を図ることができるコイル部品を提供することができる。   As described above, the present invention can provide a coil component that satisfies the UL standard (UL 60950) and can be reduced in height.

本発明の実施の形態によるコイル部品について図1乃至図6に基づき説明する。図1に示されるようにコイル部品1は、より具体的には略直方体形状をした電源トランスであり、その寸法は縦32.6mm、横32.0mm、高さ14.5mm程度であり、UL規格(UL60950)を満たしている。コイル部品1は、図2に示されるように3つの1次巻線22、32、52と、2次巻線42と、第1絶縁樹脂ボビン41と、第2絶縁樹脂ボビン51と、板状絶縁部材31と、絶縁樹脂端子台21と、絶縁樹脂カバー61と、第1磁心11と、第2磁心12とを備えている。   A coil component according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the coil component 1 is more specifically a power transformer having a substantially rectangular parallelepiped shape, and its dimensions are about 32.6 mm in length, 32.0 mm in width, and about 14.5 mm in height. Meets the standard (UL 60950). As shown in FIG. 2, the coil component 1 includes three primary windings 22, 32, 52, a secondary winding 42, a first insulating resin bobbin 41, a second insulating resin bobbin 51, and a plate shape The insulating member 31, the insulating resin terminal block 21, the insulating resin cover 61, the first magnetic core 11, and the second magnetic core 12 are provided.

第1磁心11と第2磁心12とは同一形状であるため第1磁心11についてのみ説明する。第1磁心11は、より具他的にはMn−Znからなる導電性フェライトコアである。第1磁心11は、中央部がわずかにくびれた略長方形状の板状をなす平板部11Aを有しており、略長方形状の平板部11Aの一対の短辺全体にわたって平板部11Aの上面から図2の上方へ突出する端縁突出部11B、11Bがそれぞれ設けられている。また、平板部11Aの上面の中央位置には、当該上面から図2の上方へ突出する円柱形状の中央突出部11Cが設けられている。図1に示されるようにコイル部品1が組立てられることにより、第1磁心11の端縁突出部11Bの突出端面と第2磁心12の端縁突出部11Bの突出端面とが互いに対向当接し、第1磁心11の中央突出部11Cの突出端面と第2磁心12の中央突出部11Cの突出端面とが互いに対向当接するように構成されている。   Since the first magnetic core 11 and the second magnetic core 12 have the same shape, only the first magnetic core 11 will be described. More specifically, the first magnetic core 11 is a conductive ferrite core made of Mn—Zn. The first magnetic core 11 has a flat plate portion 11A having a substantially rectangular plate shape with a slightly constricted central portion, and extends from the upper surface of the flat plate portion 11A over a pair of short sides of the substantially rectangular flat plate portion 11A. Edge projecting portions 11B and 11B projecting upward in FIG. 2 are provided. In addition, a columnar central protruding portion 11C that protrudes upward from FIG. 2 from the upper surface is provided at the center position of the upper surface of the flat plate portion 11A. As the coil component 1 is assembled as shown in FIG. 1, the projecting end surface of the edge projecting portion 11B of the first magnetic core 11 and the projecting end surface of the end projecting portion 11B of the second magnetic core 12 are opposed to each other, The protruding end surface of the central protruding portion 11C of the first magnetic core 11 and the protruding end surface of the central protruding portion 11C of the second magnetic core 12 are configured to face each other.

絶縁樹脂端子台21は、円形状に膨らんだ円形部21Bをその中央部に有する略長方形状の板状をなす端子台板状部21Aを有しており、当該円形部21Bの中央には、円形部21Bと同軸的に開口する円形の端子台貫通孔21aが形成されている。端子台板状部21Aの上面であって端子台貫通孔21aの開口の周囲には、開口の周囲全体に渡って端子台板状部21Aの上面から図2の上方へ突出する端子台開口壁21Cが設けられている。また、円形部21Bの周縁と、略長方形状の端子台板状部21Aの一方の短辺全体と、当該周縁から当該一方の短辺にわたる部分とには、端子台板状部21Aの上面から図2の上方へ突出する端子台縁部壁21Dがそれぞれ設けられている。   The insulating resin terminal block 21 has a terminal block plate-like portion 21A having a substantially rectangular plate shape having a circular portion 21B swelled in a circular shape at the center thereof, and in the center of the circular portion 21B, A circular terminal block through hole 21a that is coaxially opened with the circular portion 21B is formed. A terminal block opening wall that protrudes upward in FIG. 2 from the upper surface of the terminal block plate portion 21A over the entire periphery of the opening on the upper surface of the terminal block plate portion 21A and around the opening of the terminal block through hole 21a. 21C is provided. Further, the peripheral edge of the circular portion 21B, the entire short side of the substantially rectangular terminal block plate-shaped portion 21A, and the portion extending from the peripheral edge to the short side of the one side are formed from the upper surface of the terminal block plate-shaped portion 21A. Terminal block edge walls 21D projecting upward in FIG. 2 are provided.

略長方形状の端子台板状部21Aの図2の一番下に位置する角部に相当する部分であって端子台縁部壁21Dに囲まれる部分は、後述の第1の1次巻線22の図2の上下方向の高さと後述の板状絶縁部材31の図2の上下方向の高さとの略和の分だけ端子台板状部21Aの円形部21Bの上面よりも図2の上方向へ高いガイド部載置面21Eを有しており、略長方形状の端子台板状部21Aの一対の短辺のうちの一方の短辺の部分全体は端子電極形成部21Fをなしている。ガイド部載置面21Eには2つの径の小さな貫通孔21b、21cが形成されている。2つの貫通孔21b、21cの図2の下側の開口部には、ピン端子23、24の上端がそれぞれ固定されている。   The portion corresponding to the lowermost corner portion of FIG. 2 of the substantially rectangular terminal block plate portion 21A and surrounded by the terminal block edge wall 21D is a first primary winding described later. 2 is higher than the upper surface of the circular portion 21B of the terminal block plate-like portion 21A by the approximate sum of the height in the vertical direction of FIG. 2 in FIG. 2 and the height in the vertical direction of FIG. It has a guide portion mounting surface 21E that is higher in the direction, and the entire portion of one short side of the pair of short sides of the substantially rectangular terminal base plate portion 21A forms a terminal electrode forming portion 21F. . Two small-diameter through holes 21b and 21c are formed in the guide portion mounting surface 21E. The upper ends of the pin terminals 23 and 24 are fixed to the openings on the lower side of FIG. 2 of the two through holes 21b and 21c, respectively.

ピン端子23、24には、図4に示されるように、ピン端子23、24の軸方向、即ち、図4の上下方向の全体に渡ってピン端子23、24の軸方向へ延出する溝23a、24aが形成されている。溝23a、24aの幅は後述の第2の1次巻線32の導体端部32D、32Gの径よりもわずかに大きく、図1に示されるようにコイル部品1が組立てられることにより、溝23a、24aの全体に渡って第2の1次巻線32の導線端部32D、32Gが係合する。後述のように第2の1次巻線32は絶縁被覆された芯線32Hからなるが、図5に示されるように、ピン端子23の溝23aの内面と溝23a内の芯線32Hとの間には絶縁被覆が存在せず半田33が介在し、このことにより、芯線32Hとピン端子23とは電気的に接続されている。ピン端子24についても同様である。   As shown in FIG. 4, the pin terminals 23, 24 have grooves extending in the axial direction of the pin terminals 23, 24 over the entire axial direction of the pin terminals 23, 24, that is, in the vertical direction of FIG. 4. 23a and 24a are formed. The widths of the grooves 23a and 24a are slightly larger than the diameters of conductor ends 32D and 32G of a second primary winding 32, which will be described later, and the coil component 1 is assembled as shown in FIG. , 24a is engaged with the conductive wire ends 32D and 32G of the second primary winding 32. As will be described later, the second primary winding 32 is composed of a core wire 32H with an insulation coating, but as shown in FIG. 5, between the inner surface of the groove 23a of the pin terminal 23 and the core wire 32H in the groove 23a. There is no insulation coating and the solder 33 is interposed, whereby the core wire 32H and the pin terminal 23 are electrically connected. The same applies to the pin terminal 24.

ガイド部載置面21Eの隣接位置には、略四角柱形状をなして端子台板状部21Aの上面から図2の上方向、即ち、後述の第1〜第3の1次巻線22、32、52の軸方向へ延出する第1導線端部保護部21Hと第2導線端部保護部22Iとが設けられている。第1導線端部保護部21Hと第2導線端部保護部21Iとには、これらの延出方向へ指向する貫通孔21e、21dがそれぞれ形成されており、貫通孔21e、21dには、それぞれ後述の第3の1次巻線52の導体端部52G、52Dが貫通して端子台板状部21Aの下面から図2の下方へ突出して、図1に示されるように外部端子をなす。貫通孔21d、21eに後述の第3の1次巻線52の導体端部52D、52Gが貫通することにより、端子台板状部21Aの上面よりも図2の上側に位置することとなる第3の1次巻線52の導線端部52D、52Gの略全体を第1導線端部保護部21Hと第2導線端部保護部21Iとが覆い保護するように構成されている。第1導線端部保護部21H、第2導線端部保護部21Iは導線端部覆部に相当する。   At a position adjacent to the guide portion mounting surface 21E, a substantially quadrangular prism shape is formed, and the upper surface of the terminal block plate-like portion 21A is upward in FIG. 2, that is, first to third primary windings 22 described later, A first conducting wire end protecting portion 21H and a second conducting wire end protecting portion 22I extending in the axial direction of 32 and 52 are provided. Through holes 21e and 21d oriented in the extending direction are formed in the first conductor end protection part 21H and the second conductor end protection part 21I, respectively, and the through holes 21e and 21d are respectively provided in the through holes 21e and 21d. Conductor ends 52G and 52D of a third primary winding 52, which will be described later, pass through and protrude downward from the lower surface of the terminal block plate portion 21A to form an external terminal as shown in FIG. Conductor ends 52D and 52G of a third primary winding 52, which will be described later, pass through the through holes 21d and 21e, so that they are positioned above the upper surface of the terminal block plate portion 21A in FIG. The first conductor end protection portion 21H and the second conductor end protection portion 21I cover and protect substantially the entire conductor end portions 52D and 52G of the third primary winding 52. The first conducting wire end protecting portion 21H and the second conducting wire end protecting portion 21I correspond to the conducting wire end covering portion.

第1導線端部保護部21Hと第2導線端部保護部21Iとの間には、端子台板状部21Aの円形部21Bの上面と同じ高さの平坦面が設けられており、当該平坦面には、後述の第1の1次巻線22の他方の導体端部22Gが貫通する貫通孔21gが形成されている。また、第2導線端部保護部21Iに関して平坦面と反対の側には、後述の第1の1次巻線22の図2の上下方向の高さの略半分の高さ分だけ端子台板状部21Aの円形部21Bの上面よりも図2の上方向へ高い平坦面が設けられている。当該平坦面には後述の第1の1次巻線22の一方の導体端部22Dが貫通する貫通孔21fが形成されている。貫通孔21f、21gを貫通する第1の1次巻線22の一方の導体端部22Dと他方の導体端部22Gとは、端子台板状部21Aの下面から図2の下方へ突出して、図1に示されるように外部端子をなす。   Between the 1st conducting wire end part protection part 21H and the 2nd conducting wire end part protection part 21I, the flat surface of the same height as the upper surface of the circular part 21B of 21 A of terminal block plate-shaped parts is provided, and the said flat A through hole 21g through which the other conductor end 22G of the first primary winding 22 (described later) passes is formed on the surface. Further, on the side opposite to the flat surface with respect to the second conductor end protecting portion 21I, a terminal block plate is provided by a height approximately half of the height in the vertical direction of FIG. A flat surface that is higher in the upward direction in FIG. 2 than the upper surface of the circular portion 21B of the shape portion 21A is provided. A through hole 21f through which one conductor end 22D of a first primary winding 22 described later passes is formed on the flat surface. One conductor end 22D and the other conductor end 22G of the first primary winding 22 penetrating through the through holes 21f and 21g protrude from the lower surface of the terminal block plate-like portion 21A downward in FIG. As shown in FIG. 1, external terminals are formed.

略長方形状をなす端子台板状部21Aの一対の短辺のうちの第1導線端部保護部21H、第2導線端部保護部21I等が設けられている一方の短辺に対する他方の短辺には、当該他方の短辺全体に渡って端子台板状部21Aの上面から図2の上方へ突出する突出縁部21Jが設けられており、略長方形状の端子台板状部21Aの一対の短辺のうちの他方の短辺の部分全体は端子電極形成部21Gをなしている。突出縁部21Jの突出端面は、後述の第1の1次巻線22の図2の上下方向の高さと後述の板状絶縁部材31の図2の上下方向の高さと後述の第2の1次巻線32の図2の上下方向の高さと後述の第1絶縁樹脂ボビン41の第1ボビン板状部41Aの図2の上下方向の高さとの略和の分だけ端子台板状部21Aの円形部21Bの上面よりも図2の上方向へ高い。   Of the pair of short sides of the terminal block plate-shaped portion 21A having a substantially rectangular shape, the other short side with respect to one short side provided with the first conductor end protector 21H, the second conductor end protector 21I, etc. The side is provided with a protruding edge 21J that protrudes upward in FIG. 2 from the upper surface of the terminal block plate-like portion 21A over the other short side. The entire portion of the other short side of the pair of short sides forms a terminal electrode forming portion 21G. The protruding end face of the protruding edge portion 21J has a vertical height in FIG. 2 of a first primary winding 22 described later, a vertical height in FIG. 2 of a plate-like insulating member 31 described later, and a second 1 described later. The terminal block plate portion 21A is substantially equal to the vertical height of the next winding 32 in FIG. 2 and the vertical height in FIG. 2 of the first bobbin plate portion 41A of the first insulating resin bobbin 41 described later. 2 is higher than the upper surface of the circular portion 21B.

突出縁部21Jの突出端面には、図2に示されるように、後述の2次巻線42の一方の導体端部42D、他方の導体端部42Gがそれぞれ貫通する貫通孔21h、21iが形成されている。貫通孔21h、21iを貫通する2次巻線42の一方の導体端部42Dと他方の導体端部42Gとは、端子台板状部21Aの下面から図2の下方へ突出して、図1(b)に示されるように外部端子をなす。   As shown in FIG. 2, through holes 21h and 21i through which one conductor end 42D and the other conductor end 42G of a secondary winding 42, which will be described later, pass, are formed on the protruding end surface of the protruding edge 21J. Has been. One conductor end portion 42D and the other conductor end portion 42G of the secondary winding 42 penetrating through the through holes 21h and 21i protrude from the lower surface of the terminal block plate portion 21A downward in FIG. Form external terminals as shown in b).

第1、第3の1次巻線22、52、2次巻線42は、それぞれ導体からなる芯線と芯線の周面を被覆する絶縁被覆とを有する断面円形状の導線が、軸心を中心として半径方向に径が拡大するように平面的に且つ軸心方向に二重構造となるように、いわゆるアルファ巻き(又はクロスワイズ巻き)により巻回されて構成されている。また、第2の1次巻線32は、導体からなる芯線32Hと芯線32Hの周面を被覆する絶縁被覆とを有する導線が、軸心を中心として半径方向に径が拡大するように平面的に且つ軸心方向に一重構造となるように、いわゆる整列巻きにより巻回されて構成されている。   The first and third primary windings 22 and 52, and the secondary winding 42 are each made of a conductor having a core wire made of a conductor and an insulating coating covering a peripheral surface of the core wire, the center of which is a shaft. As described above, it is wound by so-called alpha winding (or crosswise winding) so as to form a double structure in a planar and axial direction so that the diameter increases in the radial direction. Further, the second primary winding 32 is planar so that a conductor having a core wire 32H made of a conductor and an insulating coating covering the peripheral surface of the core wire 32H is enlarged in the radial direction about the axis. In addition, it is wound by so-called aligned winding so as to have a single structure in the axial direction.

第1〜第3の1次巻線22、32、52、2次巻線42は、それぞれ同軸的に巻回された巻回部22A、32A、52A、42Aと、巻回部22A、32A、52A、42Aから引出された一端部22B、32B、52B、42B及び他端部22C、32C、52C、42Cとをそれぞれ有している。一端部22B、32B、52B、42B及び他端部22E、32E、52E、42Eは、巻回部22A、32A、52A、42Aから巻回部22A、32A、52A、42Aの略半径方向外方へ延出するように引出された引出し部22C、32C、52C、42C、22F、32F、52F、42Fと、引出し部22C、32C、52C、42C、22F、32F、52F、42Fの延出端から絶縁樹脂端子部の方向、即ち、図2の下方へ延出する導線端部22D、32D、52D、42D、22G、32G、52G、42Gとを有している。第1、第3の1次巻線22、52、2次巻線42の導線端部22D、52D、42D、22G、52G、42Gは、図1に示されるようにコイル部品1が組立てられることにより、前述のように絶縁樹脂端子台21の下面から下方へ突出して外部端子をなし、第2の1次巻線32の導線端部32D、32Gはピン端子23、24の溝23a、24a内においてピン端子23、24と電気的に接続されている。   The first to third primary windings 22, 32, 52, and the secondary winding 42 are respectively wound around the winding portions 22A, 32A, 52A, 42A and the winding portions 22A, 32A, One end portions 22B, 32B, 52B, 42B drawn from 52A, 42A and the other end portions 22C, 32C, 52C, 42C are provided. The one end portions 22B, 32B, 52B, 42B and the other end portions 22E, 32E, 52E, 42E are substantially outward in the radial direction of the winding portions 22A, 32A, 52A, 42A from the winding portions 22A, 32A, 52A, 42A. Insulated from the extended ends of the drawn portions 22C, 32C, 52C, 42C, 22F, 32F, 52F, 42F and the drawn portions 22C, 32C, 52C, 42C, 22F, 32F, 52F, 42F drawn to extend It has the direction of the resin terminal part, ie, conducting wire end part 22D, 32D, 52D, 42D, 22G, 32G, 52G, 42G extended to the downward direction of FIG. The conductive wire ends 22D, 52D, 42D, 22G, 52G, and 42G of the first and third primary windings 22 and 52 and the secondary winding 42 are assembled with the coil component 1 as shown in FIG. Thus, as described above, it protrudes downward from the lower surface of the insulating resin terminal block 21 to form an external terminal, and the conductive wire end portions 32D, 32G of the second primary winding 32 are in the grooves 23a, 24a of the pin terminals 23, 24. Are electrically connected to the pin terminals 23, 24.

板状絶縁部材31は略円盤形状をなす円盤形状部31Aを有している。円盤形状部31Aは1次絶縁樹脂板に相当する。円盤形状部31Aの中央位置には、円盤形状部31Aと同軸的に開口する円形の絶縁部材貫通孔31aが形成されている。また、円盤形状部31Aの周縁の一部には、円盤形状部31Aの略半径方向へ突出する絶縁部材ガイド部31Bが設けられている。絶縁部材ガイド部31Bは1次支持部に相当する。絶縁部材ガイド部31Bの突出端縁には、2つの切欠き31b、31cが形成されたガイド壁が円盤形状部31Aの上面から図2の上方へ延出して設けられている。切欠き31b、31cは開口が広く構成されており、細い導線であっても切欠き31b、31cに容易に係合可能に構成されている。切欠き31b、31cにそれぞれ第2の1次巻線32の導線端部32D、32Gに接続されている引出し部32C、32Fの部分が係合して第2の1次巻線32の引出し部32C、32Fが支持されるように構成されている。   The plate-like insulating member 31 has a disk-shaped portion 31A that has a substantially disk shape. The disk-shaped portion 31A corresponds to a primary insulating resin plate. A circular insulating member through-hole 31a that opens coaxially with the disk-shaped part 31A is formed at the center position of the disk-shaped part 31A. Further, an insulating member guide portion 31B that protrudes in a substantially radial direction of the disc-shaped portion 31A is provided at a part of the periphery of the disc-shaped portion 31A. The insulating member guide part 31B corresponds to a primary support part. A guide wall in which two notches 31b and 31c are formed is provided at the protruding end edge of the insulating member guide portion 31B so as to extend upward from the upper surface of the disk-shaped portion 31A in FIG. The notches 31b and 31c have wide openings, and even the thin conductors can be easily engaged with the notches 31b and 31c. The portions of the lead portions 32C and 32F connected to the conductor end portions 32D and 32G of the second primary winding 32 are engaged with the notches 31b and 31c, respectively, and the lead portion of the second primary winding 32 is engaged. 32C and 32F are configured to be supported.

絶縁部材ガイド部31Bは、図1に示されるようにコイル部品1が組立てられることにより、絶縁樹脂端子台21の端子電極形成部21Fのガイド部載置面21E上に載置され、第2の1次巻線32の導線端部32D、32Gは前述のようにピン端子23、24の溝23a、24a内に挿入される。このように、第2の1次巻線32の引出し部32C、32Fを支持する絶縁部材ガイド部31Bが、絶縁樹脂端子台21の端子電極形成部21Fのガイド部載置面21E上に載置されるため、絶縁部材ガイド部31Bが設けられた板状絶縁部材31が第2の1次巻線32の軸心を中心として回転することを防止することができる。このため第2の1次巻線32がその軸心を中心として回転してしまうことを防止することができる。   When the coil component 1 is assembled as shown in FIG. 1, the insulating member guide portion 31 </ b> B is placed on the guide portion placement surface 21 </ b> E of the terminal electrode forming portion 21 </ b> F of the insulating resin terminal block 21. Conductor end portions 32D and 32G of the primary winding 32 are inserted into the grooves 23a and 24a of the pin terminals 23 and 24 as described above. Thus, the insulating member guide portion 31B that supports the lead portions 32C and 32F of the second primary winding 32 is mounted on the guide portion mounting surface 21E of the terminal electrode forming portion 21F of the insulating resin terminal block 21. Therefore, the plate-like insulating member 31 provided with the insulating member guide portion 31B can be prevented from rotating around the axis of the second primary winding 32. For this reason, it is possible to prevent the second primary winding 32 from rotating about its axis.

第1絶縁樹脂ボビン41は略円盤形状をなす第1ボビン板状部41Aを有しており、第1ボビン板状部41Aの半径は絶縁樹脂端子台21の円形部21Bの半径よりもわずかに大きく構成されている。第1ボビン板状部41Aは絶縁樹脂板、板状部に相当する。第1ボビン板状部41Aの周縁の一部には、第1ボビン板状部41Aの半径方向外方へ突出する第1ボビンガイド部41Bが設けられている。第1ボビンガイド部41Bは支持部に相当する。第1ボビンガイド部41Bの突出端縁には、3つの切欠き41a、41b、41cが形成されたガイド壁が第1ボビンガイド部41Bの上面から図2の上方へ延出して設けられている。3つの切欠き41a、41b、41cのうちの両端の切欠き41a、41bは開口が広く構成されており、細い導線であっても切欠き41a、41bに容易に係合可能に構成されている。両端の切欠き41a、41bに、それぞれ2次巻線42の導線端部42D、42Gに接続されている引出し部42C、42Fの部分が係合して2次巻線42の引出し部42C、42Fが支持されるように構成されている。   The first insulating resin bobbin 41 has a first bobbin plate-like portion 41A having a substantially disk shape, and the radius of the first bobbin plate-like portion 41A is slightly smaller than the radius of the circular portion 21B of the insulating resin terminal block 21. It is composed largely. The first bobbin plate portion 41A corresponds to an insulating resin plate or plate portion. A first bobbin guide portion 41B that protrudes outward in the radial direction of the first bobbin plate portion 41A is provided at a part of the periphery of the first bobbin plate portion 41A. The first bobbin guide portion 41B corresponds to a support portion. On the projecting end edge of the first bobbin guide portion 41B, a guide wall in which three notches 41a, 41b, 41c are formed is provided extending from the upper surface of the first bobbin guide portion 41B upward in FIG. . Of the three cutouts 41a, 41b, 41c, the cutouts 41a, 41b at both ends have a wide opening, and can be easily engaged with the cutouts 41a, 41b even if they are thin conductors. . The portions of the lead portions 42C and 42F connected to the conductor end portions 42D and 42G of the secondary winding 42 are engaged with the notches 41a and 41b at both ends, respectively, and the lead portions 42C and 42F of the secondary winding 42 are engaged. Is configured to be supported.

第1ボビン板状部41Aの中央位置には、第1ボビン板状部41Aと同軸的に開口する円形の第1ボビン貫通孔41dが形成されている。第1ボビン貫通孔41dの半径は絶縁樹脂端子台21の端子台貫通孔21aの半径よりもわずかに小さく構成されている。第1ボビン板状部41Aの下面であって第1ボビン貫通孔41dの開口の周囲には、開口の周囲全体に渡って第1ボビン板状部41Aの下面から図2の下方へ突出する第1ボビン開口下壁41Cが設けられている。また、第1ボビン板状部41Aの上面であって第1ボビン貫通孔41dの開口の周囲よりもわずかに第1ボビン貫通孔41dの半径方向外方の位置には、開口の周囲全体に渡って第1ボビン板状部41Aの上面から図2の上方へ突出する第1ボビン開口上壁41Dが設けられている。第1ボビン貫通孔41dの半径は絶縁樹脂端子台21の端子台貫通孔21aの半径よりもわずかに小さく構成されているため、図1に示されるようにコイル部品1が組立てられることにより、第1の1次巻線22の半径方向において第1ボビン開口下壁41Cは端子台開口壁21Cよりも内側に配置されて第1ボビン開口下壁41Cの外周面は端子台開口壁21Cの内周面に対向する。   A circular first bobbin through-hole 41d that opens coaxially with the first bobbin plate-like portion 41A is formed at the center position of the first bobbin plate-like portion 41A. The radius of the first bobbin through hole 41d is configured to be slightly smaller than the radius of the terminal block through hole 21a of the insulating resin terminal block 21. A lower surface of the first bobbin plate-like portion 41A and around the opening of the first bobbin through-hole 41d protrudes downward from the lower surface of the first bobbin plate-like portion 41A over the entire periphery of the opening in FIG. A one-bobbin opening lower wall 41C is provided. Further, on the upper surface of the first bobbin plate-like portion 41A and slightly outward of the first bobbin through hole 41d in the radial direction from the periphery of the opening of the first bobbin through hole 41d, the entire periphery of the opening is spread. A first bobbin opening upper wall 41D that protrudes upward in FIG. 2 from the upper surface of the first bobbin plate-like portion 41A is provided. Since the radius of the first bobbin through hole 41d is configured to be slightly smaller than the radius of the terminal block through hole 21a of the insulating resin terminal block 21, the assembly of the coil component 1 as shown in FIG. The first bobbin opening lower wall 41C is disposed on the inner side of the terminal block opening wall 21C in the radial direction of the first primary winding 22, and the outer peripheral surface of the first bobbin opening lower wall 41C is the inner periphery of the terminal block opening wall 21C. Opposite the surface.

第1ボビン板状部41Aの周縁であって図1に示されるようにコイル部品1が組立てられたときに絶縁樹脂端子台21の円形部21Bの周縁に相当する部分には、端子台板状部21Aの下面から図2の下方へ突出する第1ボビン下方壁41Eがそれぞれ設けられている。また、第1ボビン板状部41Aの周縁よりもわずかに第1ボビン板状部41Aの半径方向内方の位置には、第1ボビン板状部41Aの上面から図2の上方へ突出する第1ボビン上方壁41Fが第1ボビンガイド部41Bの部分を除く全周に渡って設けられている。第1ボビン上方壁41Fは壁部に相当する。第1ボビン板状部41Aの半径は絶縁樹脂端子台21の円形部21Bの半径よりもわずかに大きく構成されているため、図1に示されるようにコイル部品1が組立てられることにより、第1の1次巻線22の半径方向において、円形部21Bの周縁における端子台縁部壁21Dは第1ボビン下方壁41Eよりも内側に配置されて、円形部21Bの周縁における端子台縁部壁21Dの外周面は第1ボビン下方壁41Eの内周面に対向する。   A portion of the periphery of the first bobbin plate-like portion 41A corresponding to the periphery of the circular portion 21B of the insulating resin terminal block 21 when the coil component 1 is assembled as shown in FIG. A first bobbin lower wall 41E that protrudes downward in FIG. 2 from the lower surface of the portion 21A is provided. Further, the first bobbin plate-like portion 41A protrudes upward in FIG. 2 from the upper surface of the first bobbin plate-like portion 41A at a position slightly inward in the radial direction of the first bobbin plate-like portion 41A slightly from the periphery of the first bobbin plate-like portion 41A. One bobbin upper wall 41F is provided over the entire circumference excluding the portion of the first bobbin guide portion 41B. The first bobbin upper wall 41F corresponds to a wall portion. Since the radius of the first bobbin plate-like portion 41A is slightly larger than the radius of the circular portion 21B of the insulating resin terminal block 21, the first bobbin plate-like portion 41A is assembled by the coil component 1 as shown in FIG. In the radial direction of the primary winding 22, the terminal base edge wall 21D at the periphery of the circular portion 21B is arranged on the inner side of the first bobbin lower wall 41E, and the terminal base edge wall 21D at the periphery of the circular portion 21B. Is opposed to the inner peripheral surface of the first bobbin lower wall 41E.

第2絶縁樹脂ボビン51は略円盤形状をなす第2ボビン板状部51Aを有しており、第2ボビン板状部51Aの半径は第1ボビン板状部41Aの半径と同一である。第2ボビン板状部51Aは1次絶縁樹脂板に相当する。第2ボビン板状部51Aの周縁の一部には、第2ボビン板状部51Aの半径方向外方へ突出する第2ボビンガイド部51Bが設けられている。第2ボビンガイド部51Bは1次支持部に相当する。第2ボビンガイド部51Bの突出端縁には、3つの切欠き51a、51b、51cが形成されたガイド壁が第2ボビンガイド部51Bの上面から図2の上方へ延出して設けられている。3つの切欠き51a、51b、51cのうちの両端の切欠き51a、51bは開口が広く構成されており、細い導線であっても切欠き51a、51bに容易に係合可能に構成されている。両端の切欠き51a、51bに、それぞれ第3の1次巻線52の導線端部52D、52Gに接続されている引出し部52C、52Fの部分が係合して第3の1次巻線52の引出し部52C、52Fが支持されるように構成されている。   The second insulating resin bobbin 51 has a second bobbin plate-like portion 51A having a substantially disk shape, and the radius of the second bobbin plate-like portion 51A is the same as the radius of the first bobbin plate-like portion 41A. The second bobbin plate portion 51A corresponds to a primary insulating resin plate. A part of the peripheral edge of the second bobbin plate-like portion 51A is provided with a second bobbin guide portion 51B that protrudes outward in the radial direction of the second bobbin plate-like portion 51A. The second bobbin guide portion 51B corresponds to a primary support portion. On the projecting end edge of the second bobbin guide portion 51B, a guide wall in which three notches 51a, 51b, 51c are formed extends from the upper surface of the second bobbin guide portion 51B upward in FIG. . Of the three cutouts 51a, 51b, 51c, the cutouts 51a, 51b at both ends have wide openings so that even thin conductors can be easily engaged with the cutouts 51a, 51b. . The portions of the lead portions 52C and 52F connected to the conductor end portions 52D and 52G of the third primary winding 52 are engaged with the notches 51a and 51b at both ends, respectively, and the third primary winding 52 is engaged. The drawer portions 52C and 52F are supported.

第2ボビン板状部51Aの中央位置には、第2ボビン板状部51Aと同軸的に開口する円形の第2ボビン貫通孔51dが形成されている。第2ボビン貫通孔51dの半径は第1ボビン貫通孔41dの半径と同一である。第2ボビン板状部51Aの下面であって第2ボビン貫通孔51dの開口の周囲には、開口の周囲全体に渡って第2ボビン板状部51Aの下面から図2の下方へ突出する第2ボビン開口下壁51Cが設けられている。また、第2ボビン板状部51Aの上面であって第2ボビン貫通孔51dの開口の周囲よりもわずかに第2ボビン貫通孔51dの半径方向外方の位置には、開口の周囲全体に渡って第2ボビン板状部51Aの上面から図2の上方へ突出する第2ボビン開口上壁51Dが設けられている。第2ボビン貫通孔51dの半径は第1ボビン貫通孔41dの半径と同一であるため、図1に示されるようにコイル部品1が組立てられることにより、第1の1次巻線22の半径方向において第2ボビン開口下壁51Cは第1ボビン開口上壁41Dよりも内側に配置されて第2ボビン開口下壁51Cの外周面は第1ボビン開口上壁41Dの内周面に対向する。   A circular second bobbin through-hole 51d that opens coaxially with the second bobbin plate-like portion 51A is formed at the center position of the second bobbin plate-like portion 51A. The radius of the second bobbin through hole 51d is the same as the radius of the first bobbin through hole 41d. A lower surface of the second bobbin plate-like portion 51A and around the opening of the second bobbin through-hole 51d protrudes downward from the lower surface of the second bobbin plate-like portion 51A over the entire periphery of the opening. A two-bobbin opening lower wall 51C is provided. In addition, on the upper surface of the second bobbin plate-like portion 51A and slightly outside the second bobbin through hole 51d in the radial direction from the periphery of the opening of the second bobbin through hole 51d, the entire periphery of the opening is spread. A second bobbin opening upper wall 51D that protrudes upward in FIG. 2 from the upper surface of the second bobbin plate-like portion 51A is provided. Since the radius of the second bobbin through hole 51d is the same as the radius of the first bobbin through hole 41d, the coil part 1 is assembled as shown in FIG. The second bobbin opening lower wall 51C is disposed on the inner side of the first bobbin opening upper wall 41D, and the outer peripheral surface of the second bobbin opening lower wall 51C faces the inner peripheral surface of the first bobbin opening upper wall 41D.

第2ボビン板状部51Aの周縁であって図1に示されるようにコイル部品1が組立てられたときに第1絶縁樹脂ボビン41の第1ボビンガイド部41Bに相当する部分を除く全周には、第2ボビン板状部51Aの下面から図2の下方へ突出する第2ボビン下方壁51Eが設けられている。また、第2ボビン板状部51Aの周縁よりもわずかに第2ボビン板状部51Aの半径方向内方の位置には、第2ボビン板状部51Aの上面から図2の上方へ突出する第2ボビン上方壁51Fが第2ボビンガイド部51Bの部分を除く全周に渡って設けられている。第1ボビン板状部41Aの半径は第2ボビン板状部51Aの半径と同一であるため、図1に示されるようにコイル部品1が組立てられることにより、第1の1次巻線22の半径方向において、第1ボビン上方壁41Fは第2ボビン下方壁51Eよりも内側に配置されて、第1ボビン上方壁41Fの外周面は第2ボビン下方壁51Eの内周面に対向する。   The outer periphery of the second bobbin plate-like portion 51A except the portion corresponding to the first bobbin guide portion 41B of the first insulating resin bobbin 41 when the coil component 1 is assembled as shown in FIG. Is provided with a second bobbin lower wall 51E that protrudes downward from the lower surface of the second bobbin plate-like portion 51A in FIG. Further, the second bobbin plate-like portion 51A protrudes upward in FIG. 2 from the upper surface of the second bobbin plate-like portion 51A at a position slightly inward in the radial direction of the second bobbin plate-like portion 51A slightly from the periphery of the second bobbin plate-like portion 51A. A two-bobbin upper wall 51F is provided over the entire circumference excluding the portion of the second bobbin guide portion 51B. Since the radius of the first bobbin plate-like portion 41A is the same as the radius of the second bobbin plate-like portion 51A, the coil component 1 is assembled as shown in FIG. In the radial direction, the first bobbin upper wall 41F is arranged inside the second bobbin lower wall 51E, and the outer peripheral surface of the first bobbin upper wall 41F faces the inner peripheral surface of the second bobbin lower wall 51E.

絶縁樹脂カバー61は、円形状に膨らんだカバー円形部61Bをその中央部に有する略長方形状の板状をなすカバー板状部61Aを有しており、カバー板状部61Aの半径は第2ボビン板状部51Aの半径と同一である。カバー円形部61Bの中央には、カバー円形部61Bと同軸的に開口する円形のカバー貫通孔61aが形成されている。カバー貫通孔61aの半径は第2ボビン貫通孔51dの半径と同一である。カバー円形部61Bの下面であってカバー貫通孔61aの開口の周囲には、開口の周囲全体に渡ってカバー円形部61Bの下面から図2の下方へ突出するカバー開口壁61Cが設けられている。カバー貫通孔61aの半径は第2ボビン貫通孔51dの半径と同一であるため、図1に示されるようにコイル部品1が組立てられることにより、第1の1次巻線22の半径方向においてカバー開口壁61Cは第2ボビン開口上壁51Dよりも内側に配置されてカバー開口壁61Cの外周面は第2ボビン開口上壁51Dの内周面に対向する。   The insulating resin cover 61 has a cover plate portion 61A having a substantially rectangular plate shape with a circular cover portion 61B swelled in a circular shape at the center, and the radius of the cover plate portion 61A is the second. It is the same as the radius of the bobbin plate-like portion 51A. In the center of the cover circular portion 61B, a circular cover through hole 61a that opens coaxially with the cover circular portion 61B is formed. The radius of the cover through hole 61a is the same as the radius of the second bobbin through hole 51d. A cover opening wall 61C is provided on the lower surface of the cover circular portion 61B and around the opening of the cover through hole 61a so as to protrude downward from the lower surface of the cover circular portion 61B over the entire periphery of the opening. . Since the radius of the cover through-hole 61a is the same as the radius of the second bobbin through-hole 51d, the coil component 1 is assembled as shown in FIG. The opening wall 61C is disposed inside the second bobbin opening upper wall 51D, and the outer peripheral surface of the cover opening wall 61C faces the inner peripheral surface of the second bobbin opening upper wall 51D.

また、カバー円形部61Bの周縁には、カバー円形部61Bの下面から図2の下方へ突出するカバー下方壁61Dがそれぞれ設けられている。カバー板状部61Aの半径は第2ボビン板状部51Aの半径と同一であることから、図1に示されるようにコイル部品1が組立てられたときに、カバー下方壁61Dの内周面全面は、第2絶縁樹脂ボビン51の第2ボビンガイド部51Bに相当する部分を除いて第2ボビン上方壁51Fの外周面全面に対向するように構成されている。   Further, a cover lower wall 61D that protrudes downward in FIG. 2 from the lower surface of the cover circular portion 61B is provided on the periphery of the cover circular portion 61B. Since the radius of the cover plate portion 61A is the same as the radius of the second bobbin plate portion 51A, when the coil component 1 is assembled as shown in FIG. 1, the entire inner peripheral surface of the cover lower wall 61D. Is configured to face the entire outer peripheral surface of the second bobbin upper wall 51F except for a portion corresponding to the second bobbin guide portion 51B of the second insulating resin bobbin 51.

略長方形状の板状をなすカバー板状部61Aの一対の短辺には、当該短辺全体に渡ってカバー板状部61Aの上面から図2の上方へ延出する回転防止壁61E、61Eがそれぞれ設けられている。回転防止壁61Eは、図1に示されるようにコイル部品1が組立てられたときに、第2磁心12のくびれた部分に当接可能であり、この当接により絶縁樹脂カバー61、第3の1次巻線52、第2絶縁樹脂ボビン51、2次巻線42、第1絶縁樹脂ボビン41等が第1〜第3の1次巻線22、32、52の軸心を回転軸として回転してしまうことを防止する。   The pair of short sides of the cover plate-like portion 61A having a substantially rectangular plate shape has anti-rotation walls 61E and 61E extending from the upper surface of the cover plate-like portion 61A upward in FIG. Are provided. When the coil component 1 is assembled as shown in FIG. 1, the rotation prevention wall 61 </ b> E can come into contact with the constricted portion of the second magnetic core 12, and by this contact, the insulating resin cover 61 and the third The primary winding 52, the second insulating resin bobbin 51, the secondary winding 42, the first insulating resin bobbin 41, etc. rotate around the axis of the first to third primary windings 22, 32, 52 as the rotation axis. To prevent it.

上述したコイル部品1は図6に示されるような回路構成をなしている。第1〜第3の1次巻線22、32、52が1次側に配置され、2次巻線42が2次側に配置された電源トランスの構成を採る。第1〜第3の1次巻線22、32、52の導体端部22D、22G、32D、32G、52D、52G、2次巻線42の導体端部42D、42Gはそれぞれ外部端子をなし、第1の1次巻線22の導体端部22Gと第3の1次巻線52の52Gとは、実装基板のランドパターンにより実装基板上で電気的に接続される。   The coil component 1 described above has a circuit configuration as shown in FIG. The configuration is a power transformer in which the first to third primary windings 22, 32, 52 are arranged on the primary side, and the secondary winding 42 is arranged on the secondary side. Conductor ends 22D, 22G, 32D, 32G, 52D, 52G of the first to third primary windings 22, 32, 52, and the conductor ends 42D, 42G of the secondary winding 42 each constitute an external terminal, The conductor end 22G of the first primary winding 22 and 52G of the third primary winding 52 are electrically connected on the mounting board by a land pattern of the mounting board.

第2の1次巻線32の軸方向において第2の1次巻線32に対向配置された第1ボビン板状部41Aと第1ボビン板状部41Aに関して第2の1次巻線32とは反対の側に第2の1次巻線32と同軸的に第1ボビン板状部41Aに対向して配置された2次巻線42とを有し第2の1次巻線32と共に巻回部ユニットを構成する後述の第1絶縁樹脂ボビンモジュール40を有するため、第1絶縁樹脂ボビンモジュール40により1次巻線及び2次巻線42の軸方向において1次巻線と2次巻線42とを1枚の第1ボビン板状部41Aにより仕切ることができる。このため、1次巻線32及び2次巻線42の軸方向における低背化を図ることができる。また、1つの第1絶縁樹脂ボビンモジュール40において複数の巻線を巻回するといったことを行わないため、当該複数の巻線間において絶縁を図るために従来行っていたようなテーピングを行わずにUL規格(UL60950)を満たすコイル部品1とすることができる。   The second primary winding 32 with respect to the first bobbin plate-like portion 41A and the first bobbin plate-like portion 41A disposed opposite to the second primary winding 32 in the axial direction of the second primary winding 32 Has a secondary winding 42 disposed coaxially with the second primary winding 32 and facing the first bobbin plate-like portion 41A on the opposite side, and is wound together with the second primary winding 32. Since the first insulating resin bobbin module 40, which will be described later, constituting the rotating unit is provided, the primary winding and the secondary winding in the axial direction of the primary winding and the secondary winding 42 by the first insulating resin bobbin module 40. 42 can be partitioned by one first bobbin plate-like portion 41A. For this reason, the height reduction in the axial direction of the primary winding 32 and the secondary winding 42 can be achieved. In addition, since a plurality of windings are not wound in one first insulating resin bobbin module 40, taping which has been conventionally performed for insulation between the plurality of windings is not performed. It can be set as the coil component 1 which satisfy | fills UL specification (UL60950).

また、第1絶縁樹脂ボビン41は、第1ボビン板状部41Aと、第1ボビン上方壁41Fとを有するため、第2ボビン板状部51Aの第2ボビン下方壁51Eとで互いに嵌合させ合うことができる。更に、第1ボビン上方壁41Fは2次巻線42の周面の略全体に渡って対向配置されているため、第1ボビン上方壁41Fが設けられている分だけ1次巻線32、52と2次巻線42との間の沿面距離をより長く確保することができる。また、2次巻線42の周面が露出することを防止することができるので、2次巻線42の周面に傷が付くことを防止することができる。また、コイル部品1を図示せぬ基板上に実装する際に、実装基板上でのコイル部品1と他部品との間における安全規格上コイル部品1の表面全体に絶縁テープを巻回してコイル部品1を保護する場合があるが、このように絶縁テープを巻回する際に2次巻線42の周面に傷が付くことを防止することができる。   In addition, since the first insulating resin bobbin 41 has the first bobbin plate-like portion 41A and the first bobbin upper wall 41F, the first bobbin plate-like portion 51A is fitted with the second bobbin lower wall 51E. Can fit. Further, since the first bobbin upper wall 41F is disposed so as to face almost the entire peripheral surface of the secondary winding 42, the primary windings 32 and 52 are provided by the amount of the first bobbin upper wall 41F. And a creepage distance between the secondary winding 42 and the secondary winding 42 can be secured longer. Further, since it is possible to prevent the peripheral surface of the secondary winding 42 from being exposed, it is possible to prevent the peripheral surface of the secondary winding 42 from being damaged. Further, when the coil component 1 is mounted on a substrate (not shown), an insulating tape is wound around the entire surface of the coil component 1 for safety standards between the coil component 1 and other components on the mounting substrate. 1 may be protected, but it is possible to prevent the peripheral surface of the secondary winding 42 from being damaged when the insulating tape is wound in this way.

また、絶縁樹脂端子台21には第1導線端部保護部21H、第2導線端部保護部21Iが1次巻線52の軸方向へ延出して設けられているため、導線端部52D、52Gの大部分を保護することができる。また、1次巻線52の露出を少くすることができるので、実装基板上でのコイル部品1と他部品との絶縁を図ることができる。また、コイル部品1を基板上に実装する際に、実装基板上でのコイル部品1と他部品との間における安全規格上コイル部品1の表面全体に絶縁テープを巻回してコイル部品1を保護する場合があるが、このように絶縁テープを巻回する際に1次巻線52の一端部52B、他端部52Eに傷が付くことを防止することができる。   In addition, since the first conductive wire end protection portion 21H and the second conductive wire end protection portion 21I are provided in the insulating resin terminal block 21 so as to extend in the axial direction of the primary winding 52, the conductive wire end portion 52D, Most of 52G can be protected. Further, since the exposure of the primary winding 52 can be reduced, insulation between the coil component 1 and other components on the mounting substrate can be achieved. Further, when the coil component 1 is mounted on the substrate, an insulating tape is wound around the entire surface of the coil component 1 for safety standards between the coil component 1 and other components on the mounting substrate to protect the coil component 1. However, when the insulating tape is wound in this way, it is possible to prevent the one end 52B and the other end 52E of the primary winding 52 from being damaged.

また、絶縁樹脂板は2次巻線42の軸方向における2次巻線42の巻回部42Aの絶縁樹脂端子台21寄りの側に配置され、1次巻線32、52の軸方向における1次巻線32、52の巻回部32A、52Aの絶縁樹脂端子台21寄りの側には円盤形状部31A、第2ボビン板状部51Aが設けられ、円盤形状部31A、第2ボビン板状部51Aには巻回部32A、52Aの略半径方向外方へ延出する絶縁部材ガイド部31B、第2ボビンガイド部51Bがそれぞれ設けられているため、2次巻線42の引出し部42C、42F、1次巻線の引出し部52C、52Fを支持することができる。   Further, the insulating resin plate is disposed on the side of the winding portion 42A of the secondary winding 42 in the axial direction of the secondary winding 42 and closer to the insulating resin terminal block 21, and 1 in the axial direction of the primary windings 32 and 52. A disc-shaped portion 31A and a second bobbin plate-shaped portion 51A are provided on the side of the winding portions 32A and 52A of the next windings 32 and 52 closer to the insulating resin terminal block 21, and the disc-shaped portion 31A and the second bobbin plate-shaped are provided. The part 51A is provided with an insulating member guide part 31B and a second bobbin guide part 51B that extend substantially outward in the radial direction of the winding parts 32A and 52A, respectively, so that the lead part 42C of the secondary winding 42, 42F, primary winding lead portions 52C and 52F can be supported.

第1絶縁樹脂ボビン41の第1ボビンガイド部41B、第2絶縁樹脂ボビン51の第2ボビンガイド部51Bは、それぞれ第1ボビン板状部41Aの半径方向外方、第2ボビン板状部51Aの半径方向外方へ突出しているため、この部分には第1ボビン上方壁41F、第2ボビン上方壁51Fが設けられていないが、2次巻線42と第2、第3の1次巻線32、52との間の沿面距離を所定の値で確保することができる。   The first bobbin guide portion 41B of the first insulating resin bobbin 41 and the second bobbin guide portion 51B of the second insulating resin bobbin 51 are respectively radially outward of the first bobbin plate-like portion 41A and the second bobbin plate-like portion 51A. Since the first bobbin upper wall 41F and the second bobbin upper wall 51F are not provided in this portion, the secondary winding 42 and the second and third primary windings are provided. The creepage distance between the lines 32 and 52 can be secured at a predetermined value.

ピン端子23、24には、ピン端子23、24の軸方向の全体に渡ってピン端子23、24の軸方向へ延出する溝23a、24aが形成され、溝23a、24aには第2の1次巻線32の導体端部32D、32Gが溝23a、24aの全体に渡って係合し、導体端部32D、32Gとピン端子23、24とは電気的に接続されているため、ピン端子23、24に導体端部32D、32Gを絡げずに済み、ピン端子23、24への導体端部32D、32Gの電気的な接続を自動化することができ、コスト低減を図ることができる。   The pin terminals 23 and 24 are formed with grooves 23a and 24a extending in the axial direction of the pin terminals 23 and 24 over the entire axial direction of the pin terminals 23 and 24, and the grooves 23a and 24a have second grooves. Since the conductor end portions 32D and 32G of the primary winding 32 are engaged over the entire grooves 23a and 24a, the conductor end portions 32D and 32G and the pin terminals 23 and 24 are electrically connected. It is not necessary to tie the conductor ends 32D and 32G to the terminals 23 and 24, the electrical connection of the conductor ends 32D and 32G to the pin terminals 23 and 24 can be automated, and the cost can be reduced. .

また、ピン端子23、24に導体端部32D、32Gを絡げる場合には、ピン端子23、24の軸方向において導体端部32D、32Gを絡げるための領域を確保する必要があるが、このような領域を確保せずに済む。このため、ピン端子23、24の軸方向においてコイル部品1の低背化を図ることができる。   Further, when the conductor end portions 32D and 32G are entangled with the pin terminals 23 and 24, it is necessary to secure a region for entwining the conductor end portions 32D and 32G in the axial direction of the pin terminals 23 and 24. However, it is not necessary to secure such an area. For this reason, it is possible to reduce the height of the coil component 1 in the axial direction of the pin terminals 23 and 24.

また、ピン端子23、24を径の太い導体端部や径の細い導体端部を有する様々な導線に対応させることができる。また、導線端部が太い径を有している場合には、ピン端子23、24を用いずに当該太い導線端部をそのまま外部電極として用いることが可能であるが、本実施の形態のように導線端部32D、32Gが細い場合には、強度が不足しているため導線端部32D、32Gをそのまま外部電極として用いることができない。このような場合であっても、ピン端子23、24の溝に細い導線端部32D、32Gを挿入させて用いることで、細い導線端部32D、32Gを補強して外部端子として用いることができる。また、筒状をなすピン端子23、24に導体端部32D、32Gを挿入する場合より挿入を容易とすることができる。また、絶縁被覆が施された導体端部32D、32Gを挿入し、後にピン端子23、24の溝23a、24aに半田33を供給して絶縁被覆を溝23a、24aの開口部から排出させることができる。また、半田33を溝23a、24a内において隙間なく充填させることができる。   Further, the pin terminals 23 and 24 can be made to correspond to various conductors having conductor ends with a large diameter or conductors with a small diameter. Further, when the conducting wire end portion has a large diameter, it is possible to use the thick conducting wire end portion as it is as an external electrode without using the pin terminals 23 and 24, but as in the present embodiment. When the conductor end portions 32D and 32G are thin, the conductor end portions 32D and 32G cannot be used as external electrodes as they are because the strength is insufficient. Even in such a case, the thin conductor end portions 32D and 32G can be reinforced and used as external terminals by inserting the thin conductor end portions 32D and 32G into the grooves of the pin terminals 23 and 24. . Further, the insertion can be made easier than when the conductor end portions 32D and 32G are inserted into the cylindrical pin terminals 23 and 24. Also, the conductor end portions 32D and 32G with the insulating coating are inserted, and the solder 33 is supplied to the grooves 23a and 24a of the pin terminals 23 and 24 later to discharge the insulating coating from the openings of the grooves 23a and 24a. Can do. Also, the solder 33 can be filled in the grooves 23a and 24a without any gaps.

コイル部品の製造方法では、先ず、絶縁被覆された芯線からなる導線を空芯巻きすることにより、第1〜第3の1次巻線22、32、52と2次巻線42とを製造する。次に、絶縁樹脂端子台21の円形部21B上面に第1の1次巻線22の巻回部22Aを載置して絶縁樹脂端子台21に第1の1次巻線22を収納すると共に、貫通孔21f、21gに第1の1次巻線22の導線端部22D、22Gを挿入して貫通し、導線端部22D、22Gを外部端子たるピン端子とする。このようにして、図3に示されるように、絶縁樹脂端子台21と第1の1次巻線22とからなる絶縁樹脂端子台モジュール20を製造する。なお図3においては、説明の便宜上絶縁樹脂端子台モジュール20には第1磁心11が組合されて図示されている。   In the coil component manufacturing method, first, the first to third primary windings 22, 32, 52 and the secondary winding 42 are manufactured by air-core winding a conductive wire made of an insulation-coated core wire. . Next, the winding portion 22A of the first primary winding 22 is placed on the upper surface of the circular portion 21B of the insulating resin terminal block 21, and the first primary winding 22 is stored in the insulating resin terminal block 21. The conductive wire end portions 22D and 22G of the first primary winding 22 are inserted into the through holes 21f and 21g so as to penetrate, and the conductive wire end portions 22D and 22G serve as pin terminals as external terminals. In this way, as shown in FIG. 3, the insulating resin terminal block module 20 including the insulating resin terminal block 21 and the first primary winding 22 is manufactured. In FIG. 3, the first magnetic core 11 is shown in combination with the insulating resin terminal block module 20 for convenience of explanation.

次に、板状絶縁部材31の円盤形状部31Aの上面に第2の1次巻線32の巻回部32Aを載置すると共に、板状絶縁部材31の絶縁部材ガイド部31Bのガイド壁の切欠き31b、31cに、それぞれ第2の1次巻線32の導線端部32D、32Gに接続されている引出し部32C、32Fの部分を係合させて第2の1次巻線32の引出し部32C、32Fを支持させる。このようにして、図3に示されるように、板状絶縁部材31と第2の1次巻線32とからなる板状絶縁部材モジュール30を製造する。   Next, the winding portion 32A of the second primary winding 32 is placed on the upper surface of the disk-shaped portion 31A of the plate-like insulating member 31, and the guide wall of the insulating member guide portion 31B of the plate-like insulating member 31 is placed. The portions of the lead portions 32C and 32F connected to the conductor end portions 32D and 32G of the second primary winding 32 are engaged with the notches 31b and 31c, respectively, and the lead of the second primary winding 32 is pulled out. The parts 32C and 32F are supported. In this way, as shown in FIG. 3, the plate-like insulating member module 30 including the plate-like insulating member 31 and the second primary winding 32 is manufactured.

次に、第1絶縁樹脂ボビン41の第1ボビン板状部41Aの上面に2次巻線42の巻回部42Aを載置すると共に、第1絶縁樹脂ボビン41の第1ボビンガイド部41Bのガイド壁の両端の切欠き41a、41bに、それぞれ2次巻線42の導線端部42D、42Gに接続されている引出し部42C、42Fの部分を係合させて2次巻線42の引出し部42C、42Fを支持させる。このようにして、図3に示されるように、第1絶縁樹脂ボビン41と2次巻線42とからなる第1絶縁樹脂ボビンモジュール40を製造する。第1絶縁樹脂ボビンモジュール40は2次巻線モジュールに相当する。   Next, the winding portion 42A of the secondary winding 42 is placed on the upper surface of the first bobbin plate-like portion 41A of the first insulating resin bobbin 41, and the first bobbin guide portion 41B of the first insulating resin bobbin 41 is placed. The portions of the lead portions 42C and 42F connected to the conductor end portions 42D and 42G of the secondary winding 42 are engaged with the notches 41a and 41b at both ends of the guide wall, respectively. 42C and 42F are supported. In this manner, as shown in FIG. 3, the first insulating resin bobbin module 40 including the first insulating resin bobbin 41 and the secondary winding 42 is manufactured. The first insulating resin bobbin module 40 corresponds to a secondary winding module.

次に、第2絶縁樹脂ボビン51の第2ボビン板状部51Aの上面に第3の1次巻線52の巻回部52Aを載置すると共に、第2絶縁樹脂ボビン51の第2ボビンガイド部51Bのガイド壁の両端の切欠き51a、51bに、それぞれ第3の1次巻線52の導線端部52D、52Gに接続されている引出し部52C、52Fの部分を係合させて第3の1次巻線52の引出し部52C、52Fを支持させる。このようにして、図3に示されるように、第2絶縁樹脂ボビン51と第3の1次巻線52とからなる第2絶縁樹脂ボビンモジュール50を製造する。   Next, the winding portion 52A of the third primary winding 52 is placed on the upper surface of the second bobbin plate-like portion 51A of the second insulating resin bobbin 51, and the second bobbin guide of the second insulating resin bobbin 51 is placed. The notches 51a and 51b at both ends of the guide wall of the portion 51B are engaged with the portions of the lead portions 52C and 52F connected to the conductor end portions 52D and 52G of the third primary winding 52, respectively. The lead portions 52C and 52F of the primary winding 52 are supported. In this way, as shown in FIG. 3, the second insulating resin bobbin module 50 including the second insulating resin bobbin 51 and the third primary winding 52 is manufactured.

次に、図3に示されるように、第1の1次巻線22と第2の1次巻線32とが同軸的な位置関係となるように且つ絶縁部材ガイド部31Bが端子電極形成部21Fのガイド部載置面21E上に配置されるように板状絶縁部材モジュール30を絶縁樹脂端子台モジュール20上に積層すると共に、ピン端子23、24の溝23a、24aに板状絶縁部材モジュール30の第2の1次巻線32の導体端部32D、32Gを圧入することにより挿入する。次に、第2の1次巻線32と2次巻線42とが同軸的な位置関係となるように第1絶縁樹脂ボビンモジュール40を板状絶縁部材31上に積層すると共に、絶縁樹脂端子台モジュール20の突出縁部21Jの突出端面の貫通孔21h、21iに第1絶縁樹脂ボビンモジュール40の2次巻線42の導体端部42D、42Gを挿入し貫通し、導線端部42D、42Gを外部端子たるピン端子とする。   Next, as shown in FIG. 3, the insulating member guide portion 31B is a terminal electrode forming portion so that the first primary winding 22 and the second primary winding 32 are in a coaxial positional relationship. The plate-like insulating member module 30 is laminated on the insulating resin terminal block module 20 so as to be disposed on the guide portion mounting surface 21E of 21F, and the plate-like insulating member module is placed in the grooves 23a and 24a of the pin terminals 23 and 24. The conductor end portions 32D and 32G of the 30 second primary windings 32 are inserted by press fitting. Next, the first insulating resin bobbin module 40 is laminated on the plate-like insulating member 31 so that the second primary winding 32 and the secondary winding 42 have a coaxial positional relationship, and the insulating resin terminal The conductor end portions 42D and 42G of the secondary winding 42 of the first insulating resin bobbin module 40 are inserted and penetrated into the through holes 21h and 21i on the protruding end surface of the protruding edge portion 21J of the base module 20, and the conductive wire end portions 42D and 42G are penetrated. Is a pin terminal which is an external terminal.

次に、第3の1次巻線52と2次巻線42とが同軸的な位置関係となるように第2絶縁樹脂ボビンモジュール50を第1絶縁樹脂ボビンモジュール40上に積層すると共に、第1導線端部保護部21H、第2導線端部保護部21Iの貫通孔21d、21eに第2絶縁樹脂ボビンモジュール50の第3の1次巻線52の導体端部52D、52Gを挿入し貫通し、導線端部52D、52Gを外部端子たるピン端子とする。次に、絶縁樹脂カバー61を第2絶縁樹脂ボビンモジュール50上に積層することにより、絶縁樹脂端子台モジュール20と板状絶縁部材モジュール30と第1絶縁樹脂ボビンモジュール40と第2絶縁樹脂ボビンモジュール50と絶縁樹脂カバー61とから構成される巻回部ユニットを製造する。   Next, the second insulating resin bobbin module 50 is laminated on the first insulating resin bobbin module 40 so that the third primary winding 52 and the secondary winding 42 have a coaxial positional relationship, and the first The conductor end portions 52D and 52G of the third primary winding 52 of the second insulating resin bobbin module 50 are inserted into the through holes 21d and 21e of the first conductor end portion protection portion 21H and the second conductor end portion protection portion 21I and penetrated. The conductive wire end portions 52D and 52G are pin terminals that are external terminals. Next, by stacking the insulating resin cover 61 on the second insulating resin bobbin module 50, the insulating resin terminal block module 20, the plate-like insulating member module 30, the first insulating resin bobbin module 40, and the second insulating resin bobbin module. 50 and the insulating resin cover 61 are manufactured.

そして、第1磁心11の端縁突出部11Bの突出端面と第2磁心12の端縁突出部11Bの突出端面を当接させ、また、第1磁心11の中央突出部11Cと第2磁心12の中央突出部11Cとで端子台貫通孔21a、絶縁部材貫通孔31a、第1ボビン貫通孔41d、第2ボビン貫通孔51d、カバー貫通孔61aを貫通して第1磁心11の中央突出部11Cの突出端面と第2磁心12の中央突出部11Cの突出端面とを当接させる。このことにより第1磁心11と第2磁心12とで巻回部ユニットを挟持し、最後に第1磁心11、第2磁心12の周面をテープ1A(図1)で巻回し、ピン端子23、24の下端を半田槽に浸漬させることによりピン端子23、24の溝23a、24a内へ半田33を供給して第2の1次巻線32を構成する導線の絶縁被覆を溶融させて溝23a、24aから排出させ、ピン端子23、24の溝23a、24aの内面と第2の1次巻線32の導線端部32D、32Gの芯線32Hとの間に半田33のみを介在させてピン端子23、24の溝23a、24aの内面と第2の1次巻線32の導線端部32D、32Gの芯線32Hとを電気的に接続すると同時に、第1、第3の1次巻線22、52の導線端部22D、22G、52D、52Gの下端を半田槽に浸漬させて、導線端部22D、22G、52D、52Gの下端の絶縁被覆を剥離し、導線端部22D、22G、52D、52Gの下端に半田を付着させる。以上によりコイル部品1たる電源トランスが製造される。   Then, the protruding end surface of the edge protruding portion 11B of the first magnetic core 11 is brought into contact with the protruding end surface of the edge protruding portion 11B of the second magnetic core 12, and the central protruding portion 11C of the first magnetic core 11 and the second magnetic core 12 are contacted. The central protrusion 11C of the first magnetic core 11 passes through the terminal block through hole 21a, the insulating member through hole 31a, the first bobbin through hole 41d, the second bobbin through hole 51d, and the cover through hole 61a. The projecting end surface of the second magnetic core 12 is brought into contact with the projecting end surface of the central projecting portion 11C. As a result, the winding unit is sandwiched between the first magnetic core 11 and the second magnetic core 12, and finally the peripheral surfaces of the first magnetic core 11 and the second magnetic core 12 are wound with the tape 1 </ b> A (FIG. 1). , 24 is immersed in the solder bath to supply the solder 33 into the grooves 23a, 24a of the pin terminals 23, 24, thereby melting the insulation coating of the conductive wire constituting the second primary winding 32. 23a, 24a, and the pin terminals 23, 24 are inserted with only the solder 33 between the inner surfaces of the grooves 23a, 24a of the pin terminals 23, 24 and the conductor ends 32D, 32G of the second primary winding 32. The inner surfaces of the grooves 23a and 24a of the terminals 23 and 24 and the core wires 32H of the conductive wire ends 32D and 32G of the second primary winding 32 are electrically connected, and at the same time, the first and third primary windings 22 are connected. , 52 conducting wire ends 22D, 22G, 52D, 52G It is immersed in a solder bath, lead end 22D, peeled 22G, 52D, the insulating coating of the lower end of 52G, lead end 22D, 22G, 52D, to attach the solder to the lower end of 52G. Thus, the power transformer as the coil component 1 is manufactured.

板状絶縁部材モジュール30を除き、絶縁樹脂端子台モジュール20、第1絶縁樹脂ボビンモジュール40、第2絶縁樹脂ボビンモジュール50においては、上方のみ第1、第3の1次巻線22、52、2次巻線42の巻回部22A、52A、42Aが露出していたが、上述のように各モジュールを積層することにより当該巻回部22A、52A、42Aが隠される。   Except for the plate-like insulating member module 30, in the insulating resin terminal block module 20, the first insulating resin bobbin module 40, and the second insulating resin bobbin module 50, only the first and third primary windings 22, 52, Although the winding portions 22A, 52A, and 42A of the secondary winding 42 are exposed, the winding portions 22A, 52A, and 42A are hidden by stacking the modules as described above.

また、板状絶縁部材モジュール30の第2の1次巻線32と絶縁樹脂端子台モジュール20の第1の1次巻線22とは同じ入力側の巻線のため、沿面距離を気にする必要がない。このため、板状絶縁部材31には、第1絶縁樹脂ボビン41や第2絶縁樹脂ボビン51に設けられていたような第1ボビン下方壁41E、第1ボビン上方壁41F、第2ボビン下方壁51E、第2ボビン上方壁51F等の壁を設けずに済む。   Further, since the second primary winding 32 of the plate-like insulating member module 30 and the first primary winding 22 of the insulating resin terminal block module 20 are the same input side windings, the creepage distance is a concern. There is no need. For this reason, the plate-like insulating member 31 includes a first bobbin lower wall 41E, a first bobbin upper wall 41F, and a second bobbin lower wall as provided in the first insulating resin bobbin 41 and the second insulating resin bobbin 51. 51E, the second bobbin upper wall 51F, etc. need not be provided.

導体からなるピン端子23、24であってその軸方向の全体に渡って延出する溝23a、24aが形成されたピン端子23、24が植設された絶縁樹脂端子台21の溝23a、24aに導体端部32D、32Gを挿通させる工程と、ピン端子23、24の下端部を溶融半田に浸漬させて溝23a、24a内へ半田33を供給することにより溝23a、24a内の導体端部32D、32Gの絶縁被覆を溶融させて除去すると共にピン端子23、24と芯線32Hとを電気的に接続する工程とを有するため、導体端部32D、32Gの芯線32Hとピン端子23、24とを確実に電気的に接続することができる。また、開口部から絶縁被覆を排出することができる。   Grooves 23a, 24a of insulating resin terminal block 21 in which pin terminals 23, 24, which are pin terminals 23, 24 made of conductors and formed with grooves 23a, 24a extending in the entire axial direction, are formed. And inserting the conductor end portions 32D and 32G into the grooves 23a and 24a by immersing the lower ends of the pin terminals 23 and 24 in the molten solder and supplying the solder 33 into the grooves 23a and 24a. The insulation coating of 32D and 32G is melted and removed, and the step of electrically connecting the pin terminals 23 and 24 and the core wire 32H is included, so that the core wire 32H of the conductor end portions 32D and 32G and the pin terminals 23 and 24 Can be reliably connected electrically. Further, the insulating coating can be discharged from the opening.

本発明のコイル部品は、上述した実施の形態に限定されず、特許請求の範囲に記載した範囲で種々の変形や改良が可能である。例えばピン端子23、24の下端を半田槽に浸漬させることによりピン端子23、24の溝23a、24a内へ半田33を供給して絶縁被覆を溶かして溝23a、24aから排出させ、ピン端子23、24の溝23a、24aの内面と第2の1次巻線32の導線端部32D、32Gの芯線32Hとの間に半田33のみを介在させてピン端子23、24の溝23a、24aの内面と第2の1次巻線32の導線端部32D、32Gの芯線32Hとを電気的に接続したが、電気的な接続方法はこの方法に限定されない。   The coil component of the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made within the scope described in the claims. For example, by dipping the lower ends of the pin terminals 23 and 24 in a solder bath, the solder 33 is supplied into the grooves 23a and 24a of the pin terminals 23 and 24, the insulating coating is melted, and discharged from the grooves 23a and 24a. , 24 between the inner surfaces of the grooves 23a, 24a and the conductor ends 32D, 32G of the second primary winding 32 with only the solder 33 interposed therebetween, and the grooves 23a, 24a of the pin terminals 23, 24 Although the inner surface and the conductor ends 32D and 32G of the second primary winding 32 are electrically connected, the electrical connection method is not limited to this method.

例えば、図7に示されるように、ピン端子123の周面に対して、かしめのための冶具を当接させてかしめることによりかしめ部133を設ける。このことにより第2の1次巻線32の導線端部32Dがピン端子123の溝123aの内面によってかしめられて、ピン端子123の溝123aの内面と第2の1次巻線32の導線端部32Dの芯線32Hとが電気的に接続される。このようにかしめ部133を有するコイル部品としてもよい。   For example, as shown in FIG. 7, the caulking portion 133 is provided by caulking a caulking tool against the peripheral surface of the pin terminal 123. As a result, the conductive wire end portion 32D of the second primary winding 32 is caulked by the inner surface of the groove 123a of the pin terminal 123, and the conductive wire end of the second primary winding 32 and the inner surface of the groove 123a of the pin terminal 123. The core 32H of the part 32D is electrically connected. Thus, it is good also as a coil component which has the crimping part 133. FIG.

導体からなるピン端子123であってその軸方向の全体に渡って延出する溝123aが形成されたピン端子123が植設された絶縁樹脂端子台21の溝123aに、導体からなる芯線32Hと芯線32Hの周面を被覆する絶縁被覆とを有する導線の導線端部32Dを挿通させる工程と、ピン端子123をかしめることによりピン端子123の一部を溝123a内の導線端部32Dに対してかしめてピン端子123と導線端部32Dの芯線32Hとを電気的に接続する工程とを有するため、導線端部32Dの芯線32Hとピン端子123とを確実に電気的に接続することができる。また、かしめによって導線端部32Dの一部を溝123aの開口部へ逃がすことができ、かしめられた導線端部32D部の行き場がなくなることによりピン端子123が変形するといった不具合を防止することができる。   A conductor core wire 32H is formed in the groove 123a of the insulating resin terminal block 21 in which the pin terminal 123 formed with a groove 123a extending in the entire axial direction of the pin terminal 123 made of a conductor is formed. A step of inserting a conductor end portion 32D of a conductor having an insulation coating covering the peripheral surface of the core wire 32H, and a part of the pin terminal 123 by caulking the pin terminal 123 to the conductor end portion 32D in the groove 123a. Since there is a step of electrically connecting the pin terminal 123 and the core wire 32H of the conductive wire end portion 32D, the core wire 32H of the conductive wire end portion 32D and the pin terminal 123 can be reliably electrically connected. . Further, a part of the conductor end portion 32D can be escaped to the opening of the groove 123a by caulking, and the pin terminal 123 can be prevented from being deformed due to the absence of the place of the caulked conductor end portion 32D. it can.

又は、溝223a(図8)の開口部にピン端子223の周面から突出する突出部233を設け、突出部233を溝223a内へ折曲げて突出部233を溝223a内の第2の1次巻線32の導線端部32Dに当接させることにより導線端部32Dを溝223a内に仮固定し、図8に示されるように、突出部233と導線端部32Dとを溶接することにより突出部233と導線端部32Dの芯線32Hとを電気的に接続するようにしてもよい。このように突出部233を有するコイル部品としてもよい。   Alternatively, a protrusion 233 that protrudes from the peripheral surface of the pin terminal 223 is provided at the opening of the groove 223a (FIG. 8), the protrusion 233 is bent into the groove 223a, and the protrusion 233 is the second one in the groove 223a. By bringing the conductor end 32D into contact with the conductor end 32D of the next winding 32, the conductor end 32D is temporarily fixed in the groove 223a, and the protrusion 233 and the conductor end 32D are welded as shown in FIG. You may make it electrically connect the protrusion part 233 and the core wire 32H of 32 A of conductor wire ends. Thus, it is good also as a coil component which has the protrusion part 233. FIG.

導体からなるピン端子であってその軸方向の全体に渡って延出する溝223aが形成され溝223aの開口部にピン端子の周面から突出する突出部233が設けられたピン端子が植設された絶縁樹脂端子台21の溝223aに導線端部32Dを挿通させる工程と、突出部233を溝223a内へ折曲げて突出部233を溝223a内の導線端部32Dに当接させることにより導線端部32Dを溝223a内に仮固定する工程と、突出部233と導線端部32Dとを溶接することにより突出部233と芯線32Hとを電気的に接続する工程とを有するため、導線端部32Dの芯線32Hとピン端子223とを確実に電気的に接続することができる。また、ピン端子223の最外形寸法を変えることなく開口部に突出部233と導線端部32Dとからなる溶接玉を形成できる。   A pin terminal made of a conductor having a groove 223a extending in the entire axial direction thereof is formed, and a protrusion 233 protruding from the peripheral surface of the pin terminal is provided in the opening of the groove 223a. A step of inserting the conductor end portion 32D into the groove 223a of the insulated resin terminal block 21, and by bending the protruding portion 233 into the groove 223a and bringing the protruding portion 233 into contact with the conductor end portion 32D in the groove 223a. The method includes a step of temporarily fixing the conductor end portion 32D in the groove 223a and a step of electrically connecting the protrusion portion 233 and the core wire 32H by welding the protrusion portion 233 and the conductor end portion 32D. The core wire 32H of the part 32D and the pin terminal 223 can be reliably electrically connected. Moreover, the welding ball which consists of the protrusion part 233 and the conducting wire end part 32D can be formed in an opening part, without changing the outermost dimension of the pin terminal 223. FIG.

又は、溝の内面を規定するピン端子の部分が、溶融して導線の芯線32Hと電気的に接続される溶融部を有する構成としてもよい。このように溶融部を有するコイル部品としてもよい。   Or it is good also as a structure which has the fusion | melting part in which the part of the pin terminal which prescribes | regulates the inner surface of a groove | channel fuses and is electrically connected with the core wire 32H of conducting wire. Thus, it is good also as a coil component which has a fusion | melting part.

またピン端子を、図9、図10に示されるように、ピン端子323、324の溝323a、324aが絶縁樹脂端子台321の端面に開口するように絶縁樹脂端子台321に設けてもよい。このようにすることにより溝323a、324aの開口部から第2の1次巻線32を溝323a、324a内へ嵌め込むことが可能となる。   9 and 10, the pin terminals may be provided on the insulating resin terminal block 321 so that the grooves 323 a and 324 a of the pin terminals 323 and 324 open on the end surface of the insulating resin terminal block 321. By doing so, it is possible to fit the second primary winding 32 into the grooves 323a and 324a from the openings of the grooves 323a and 324a.

また、コイル部品の製造方法では、最後に第1磁心11、第2磁心12の周面をテープ1Aで巻回することによりコイル部品1たる電源トランスが製造されたが、テープ1Aを用いることに限定されない。例えば、第1磁心11の端縁突出部11Bの突出端面と第2磁心12の端縁突出部11Bの突出端面を接着剤によって接着し、第1磁心11の中央突出部11Cの突出端面と第2磁心12の中央突出部11Cの突出端面とを接着剤によって接着してもよい。   In the coil component manufacturing method, the power transformer as the coil component 1 is manufactured by finally winding the peripheral surfaces of the first magnetic core 11 and the second magnetic core 12 with the tape 1A. However, the tape 1A is used. It is not limited. For example, the protruding end surface of the edge protruding portion 11B of the first magnetic core 11 and the protruding end surface of the edge protruding portion 11B of the second magnetic core 12 are bonded with an adhesive, and the protruding end surface of the central protruding portion 11C of the first magnetic core 11 You may adhere | attach the protrusion end surface of 11 C of center protrusion parts of the 2 magnetic core 12 with an adhesive agent.

また、ピン端子23、24には溝23a、24aが予め形成されていたが、これに限定されない。例えば、金属棒に研削、切削、レーザー加工、エッチング等のあらゆる他の手段で溝23a、24aを後から形成しても良いし、金属棒を金型で打ち抜いて溝23a、24aを形成しても良い。また、板状の金属板を金型で打ち抜いて丸めることにより、長手方向に延出する溝23a、24aが形成された略筒状としても良い。   Moreover, although the groove | channels 23a and 24a were previously formed in the pin terminals 23 and 24, it is not limited to this. For example, the grooves 23a, 24a may be formed later on the metal bar by any other means such as grinding, cutting, laser processing, etching, etc., or the metal bars are punched with a mold to form the grooves 23a, 24a. Also good. Moreover, it is good also as a substantially cylindrical shape in which the groove | channels 23a and 24a extended in a longitudinal direction were formed by punching and rounding a plate-shaped metal plate with a metal mold | die.

また、ピン端子23、24の溝23a、24aに板状絶縁部材モジュール30の第2の1次巻線32の導体端部32D、32Gを圧入することにより挿入したが、これに限定されず、例えばインサート成形を行ってもよい。   In addition, the conductor ends 32D and 32G of the second primary winding 32 of the plate-like insulating member module 30 are inserted by being inserted into the grooves 23a and 24a of the pin terminals 23 and 24, but the present invention is not limited thereto. For example, insert molding may be performed.

また、本実施の形態では、第1〜第3の1次巻線22、32、52、2次巻線42を空芯巻きすることにより製造したが、絶縁樹脂端子台21端子台開口壁21Cや、第1、第2絶縁樹脂ボビン41、51の第1、第2ボビン開口上壁41D、51Dに直接巻回して製造してもよい。   In the present embodiment, the first to third primary windings 22, 32, 52, and the secondary winding 42 are manufactured by air-core winding, but the insulating resin terminal block 21 terminal block opening wall 21C Alternatively, the first and second insulating resin bobbins 41 and 51 may be manufactured by being wound directly on the first and second bobbin opening upper walls 41D and 51D.

また、第1磁心11、第2磁心12は、Mn−Znからなる導電性フェライトコアにより構成されたが、これに限定されない。例えば、金属圧粉磁心などの導電性コアや、Ni系フェライトコアにより構成されてもよい。   Moreover, although the 1st magnetic core 11 and the 2nd magnetic core 12 were comprised by the electroconductive ferrite core which consists of Mn-Zn, it is not limited to this. For example, it may be composed of a conductive core such as a metal dust core or a Ni-based ferrite core.

また、第3の1次巻線52の一端部52B、他端部52Eの一部であって第1導線端部保護部21H、第2導線端部保護部21Iにより覆われていない部分については、樹脂コーティングしてもよい。   In addition, a part of one end portion 52B and the other end portion 52E of the third primary winding 52 that is not covered with the first conductor end protection portion 21H and the second conductor end protection portion 21I. The resin coating may be used.

また、第1導線端部保護部21H、第2導線端部保護部21Iの貫通孔21e、21dには、それぞれ第3の1次巻線52の導体端部52G、52Dが貫通していたが、このような構成に限定されず、例えば、第1、第2の1次巻線22、32、2次巻線42の導体端部22G、32G、42G、22D、32D、42Dが貫通する部分に第1導線端部保護部21H、第2導線端部保護部21Iのような突出する保護部が設けられてもよい。   In addition, the conductor end portions 52G and 52D of the third primary winding 52 pass through the through holes 21e and 21d of the first conductor end protection portion 21H and the second conductor end protection portion 21I, respectively. For example, a portion through which the conductor end portions 22G, 32G, 42G, 22D, 32D, and 42D of the first and second primary windings 22 and 32 and the secondary winding 42 penetrate is not limited to such a configuration. Further, protruding protective portions such as the first conductive wire end protection portion 21H and the second conductive wire end protection portion 21I may be provided.

また、ピン端子23の溝23aの内面と溝23a内の芯線32Hとの間には半田33が介在していたが、半田33に限定されず、導電体であればよい。   In addition, the solder 33 is interposed between the inner surface of the groove 23a of the pin terminal 23 and the core wire 32H in the groove 23a, but the present invention is not limited to the solder 33 and may be a conductor.

また、ピン端子23、24の下端を半田槽に浸漬させると同時に、第1、第3の1次巻線22、52の導線端部22D、22G、52D、52Gの下端を半田槽に浸漬させたが、ピン端子23、24の下端を半田槽に浸漬させることと、第1、第3の1次巻線22、52の導線端部22D、22G、52D、52Gの下端を半田槽に浸漬させることとを同時に行わなくてもよい。   Further, the lower ends of the pin terminals 23 and 24 are immersed in the solder bath, and at the same time, the lower ends of the conductive wire end portions 22D, 22G, 52D and 52G of the first and third primary windings 22 and 52 are immersed in the solder bath. However, the lower ends of the pin terminals 23 and 24 are immersed in the solder bath, and the lower ends of the conductor end portions 22D, 22G, 52D and 52G of the first and third primary windings 22 and 52 are immersed in the solder bath. Does not have to be performed at the same time.

本発明のコイル部品は、特に電源装置などに用いられるトランスやチョークコイルなどのインダクタンス部品等の分野において特に有用である。   The coil component of the present invention is particularly useful in the field of inductance components such as transformers and choke coils used in power supply devices.

本発明の実施の形態によるコイル部品を示す上方斜視図。The upper perspective view which shows the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品を示す下方斜視図。The lower perspective view which shows the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品を示す分解斜視図。The disassembled perspective view which shows the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品を示す分解斜視図。The disassembled perspective view which shows the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品のピン端子の部分を示す要部斜視図。The principal part perspective view which shows the part of the pin terminal of the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品のピン端子の部分を示す要部断面図。The principal part sectional drawing which shows the part of the pin terminal of the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品を示す回路図。The circuit diagram which shows the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品の変形例によるピン端子の部分を示す断面斜視図。The cross-sectional perspective view which shows the part of the pin terminal by the modification of the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品の変形例によるピン端子の部分を示す断面斜視図。The cross-sectional perspective view which shows the part of the pin terminal by the modification of the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品の変形例による絶縁樹脂端子台を示す斜視図。The perspective view which shows the insulated resin terminal block by the modification of the coil components by embodiment of this invention. 本発明の実施の形態によるコイル部品の変形例によるピン端子の部分を示す要部斜視図。The principal part perspective view which shows the part of the pin terminal by the modification of the coil components by embodiment of this invention.

符号の説明Explanation of symbols

1 コイル部品
11 第1磁心
12 第2磁心
21 絶縁樹脂端子台
21H 第1導線端部保護部
21I 第2導線端部保護部
22 第1の1次巻線
22A、32A、42A、52A 巻回部
22B、32B、42B、52B 一端部
22E、32E、42E、52E 他端部
22C、32C、42C、52C、22F、32F、42F、52F 引出し部
22D、32D、42D、52D、22G、32G、42G、52G 導体端部
23、24 ピン端子
23a、24a 溝
32 第2の1次巻線
32H 芯線
33 半田
40 第1絶縁樹脂ボビンモジュール
41A 第1ボビン板状部
41B 第1ボビンガイド部
41E 第1ボビン下方壁
41F 第1ボビン上方壁
42 2次巻線
50 第2絶縁樹脂ボビンモジュール
51B 第2ボビンガイド部
51E 第2ボビン下方壁
51F 第2ボビン上方壁
52 第3の1次巻線
DESCRIPTION OF SYMBOLS 1 Coil component 11 1st magnetic core 12 2nd magnetic core 21 Insulation resin terminal block 21H 1st conducting wire end part protection part 21I 2nd conducting wire end part protection part 22 1st primary winding 22A, 32A, 42A, 52A Winding part 22B, 32B, 42B, 52B One end 22E, 32E, 42E, 52E The other end 22C, 32C, 42C, 52C, 22F, 32F, 42F, 52F Drawer 22D, 32D, 42D, 52D, 22G, 32G, 42G, 52G Conductor end portions 23, 24 Pin terminals 23a, 24a Groove 32 Second primary winding 32H Core wire 33 Solder 40 First insulating resin bobbin module 41A First bobbin plate-like portion 41B First bobbin guide portion 41E First bobbin lower portion Wall 41F First bobbin upper wall 42 Secondary winding 50 Second insulating resin bobbin module 51B Second bobbin guide portion 51E Second bobbin lower 51F the second bobbin upper wall 52 third primary winding

Claims (6)

導線が巻回されてなる1次巻線と、
該1次巻線の軸方向において該1次巻線に対向配置された絶縁樹脂板と該絶縁樹脂板に関して該1次巻線とは反対の側に該1次巻線と同軸的に導線が巻回されて該絶縁樹脂板に対向して配置された2次巻線とを有し該1次巻線と共に巻回部ユニットを構成する2次巻線モジュールと、
該1次巻線の軸方向における該巻回部ユニットの一端側と他端側とに設けられて該巻回部ユニットを挟持する一対の磁心とを備えることを特徴とするコイル部品。
A primary winding formed by winding a conductive wire;
An insulating resin plate disposed opposite to the primary winding in the axial direction of the primary winding and a conductive wire coaxially with the primary winding on the opposite side of the primary winding with respect to the insulating resin plate A secondary winding module that has a secondary winding that is wound and disposed opposite to the insulating resin plate and that forms a winding unit together with the primary winding;
A coil component comprising a pair of magnetic cores provided on one end side and the other end side of the winding unit in the axial direction of the primary winding and sandwiching the winding unit.
該絶縁樹脂板は、平面状をなす板状部と、該板状部の周縁部において該2次巻線の周面の一部に対向配置された壁部を有することを特徴とする請求項1記載のコイル部品。   The insulating resin plate includes a plate-like portion having a planar shape, and a wall portion arranged to face a part of a peripheral surface of the secondary winding at a peripheral portion of the plate-like portion. 1. The coil component according to 1. 該絶縁樹脂板は、平面状をなす板状部と、該板状部の周縁部において該2次巻線の周面の略全体に渡って対向配置された壁部を有することを特徴とする請求項1記載のコイル部品。   The insulating resin plate includes a planar plate-like portion and a wall portion disposed so as to face the entire peripheral surface of the secondary winding at the peripheral portion of the plate-like portion. The coil component according to claim 1. 該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、
該1次巻線、該2次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、
該絶縁樹脂端子台には該導線端部の略全体を覆う導線端部覆部が該1次巻線の軸方向へ延出して設けられていることを特徴とする請求項1乃至請求項3のいずれか一記載のコイル部品。
An insulating resin terminal block is disposed between the primary winding and one of the magnetic cores,
The primary winding and the secondary winding each have a winding part wound coaxially with one end and the other end drawn from the winding part, and the one end and the other. An end portion is drawn out so as to extend from the winding portion to the outside of the winding portion in a substantially radial direction, and a lead wire extending from the extending end of the drawing portion toward the insulating resin terminal portion And having an end,
4. The insulated resin terminal block is provided with a conductor end cover that covers substantially the entire conductor end extending in the axial direction of the primary winding. The coil component according to any one of the above.
該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、
該1次巻線、該2次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、
該絶縁樹脂板は該2次巻線の軸方向における該2次巻線の巻回部の絶縁樹脂端子台寄りの側に配置され、該1次巻線の軸方向における該1次巻線の巻回部の絶縁樹脂端子台寄りの側には1次絶縁樹脂板が設けられ、
該絶縁樹脂板、該1次絶縁樹脂板には該巻回部の略半径方向外方へ延出して該2次巻線の引出し部、該1次巻線の引出し部を支持する支持部、1次支持部がそれぞれ設けられていることを特徴とする請求項1乃至請求項4のいずれか一記載のコイル部品。
An insulating resin terminal block is disposed between the primary winding and one of the magnetic cores,
The primary winding and the secondary winding each have a winding part wound coaxially with one end and the other end drawn from the winding part, and the one end and the other. An end portion is drawn out so as to extend from the winding portion to the outside of the winding portion in a substantially radial direction, and a lead wire extending from the extending end of the drawing portion toward the insulating resin terminal portion And having an end,
The insulating resin plate is disposed on the side near the insulating resin terminal block of the winding portion of the secondary winding in the axial direction of the secondary winding, and the primary winding in the axial direction of the primary winding A primary insulating resin plate is provided on the side of the winding portion near the insulating resin terminal block,
The insulating resin plate, the primary insulating resin plate extending substantially outward in the radial direction of the winding portion, and a support portion for supporting the lead portion of the secondary winding and the lead portion of the primary winding; The coil component according to any one of claims 1 to 4, wherein primary support portions are respectively provided.
該1次巻線と一方の該磁心との間には絶縁樹脂端子台が配置され、
該1次巻線は互いに同軸的に巻回された巻回部と該巻回部から引出された一端部及び他端部とをそれぞれ有し、該一端部及び該他端部は該巻回部から該巻回部の略半径方向外方へ延出するように引出された引出し部と該引出し部の延出端から該絶縁樹脂端子部の方へ延出する導線端部とを有し、
該絶縁樹脂端子台には導体からなるピン端子が植設され、該ピン端子には該ピン端子の軸方向の全体に渡って該ピン端子の軸方向へ延出する溝が形成され、
該溝には該1次巻線の導体端部が該溝の全体に渡って係合し、該導体端部と該ピン端子とは電気的に接続されていることを特徴とする請求項1乃至請求項5のいずれか一記載のコイル部品。
An insulating resin terminal block is disposed between the primary winding and one of the magnetic cores,
The primary winding has a winding part wound coaxially with each other, and one end and another end drawn from the winding part, and the one end and the other end are the windings. A lead-out portion that is drawn out from the portion so as to extend outward in a substantially radial direction of the winding portion, and a wire end portion that extends from the extension end of the lead-out portion toward the insulating resin terminal portion. ,
A pin terminal made of a conductor is implanted in the insulating resin terminal block, and a groove extending in the axial direction of the pin terminal is formed over the entire axial direction of the pin terminal.
2. The conductor end of the primary winding is engaged with the groove over the entire groove, and the conductor end and the pin terminal are electrically connected. The coil component according to any one of claims 5 to 5.
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